10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2024

Or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number 033-80623

Achieve Life Sciences, Inc.

(Exact name of the registrant as specified in its charter)

Delaware	95-4343413
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

22722 29th Drive SE, Suite 100, Bothell, WA 98021

1040 West Georgia Street, Suite 1030, Vancouver, B.C. V6E 4H1

(Address of principal executive offices, including zip code)

(604) 210-2217

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Trading Symbol(s)	Name of Exchange on Which Registered
Common Stock, par value $0.001 per share	ACHV	The Nasdaq Stock Market LLC

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes ☐ No ☒

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒	Smaller reporting company	☒
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act.). Yes ☐ No ☒

As of June 30, 2024, the aggregate market value of the registrant’s Common Stock held by non-affiliates of the registrant was $144,081,005 computed with reference to the price at which the Common Stock was last sold on June 28, 2024. As of March 11, 2025, 34,685,072 shares of the registrant’s Common Stock were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Registrant’s Definitive Proxy Statement for its 2025 Annual Meeting of Stockholders (“Proxy Statement”), to be filed within 120 days of the Registrant’s fiscal year ended December 31, 2024, is incorporated by reference into Part III of this Annual Report on Form 10-K.

Auditor Name: PricewaterhouseCoopers LLP Auditor Location: Vancouver, Canada Auditor Firm ID: 271

Achieve Life Sciences, Inc.

Table of Contents

PART I		2
ITEM 1.	BUSINESS	5
ITEM 1A.	RISK FACTORS	20
ITEM 1B.	UNRESOLVED STAFF COMMENTS	52
ITEM 1C.	CYBERSECURITY	52
ITEM 2.	PROPERTIES	53
ITEM 3.	LEGAL PROCEEDINGS	53
ITEM 4.	MINE SAFETY DISCLOSURE	53
PART II		54
ITEM 5.	MARKET FOR THE REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES	54
ITEM 6.	RESERVED	54
ITEM 7.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	55
ITEM 7A.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	64
ITEM 8.	FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA	65
ITEM 9.	CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE	96
ITEM 9A.	CONTROLS AND PROCEDURES	96
ITEM 9B.	OTHER INFORMATION	96
ITEM 9C.	DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS	96
PART III		97
ITEM 10.	DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE	97
ITEM 11.	EXECUTIVE COMPENSATION	97
ITEM 12.	SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS	97
ITEM 13.	CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE	97
ITEM 14.	PRINCIPAL ACCOUNTANT FEES AND SERVICES	97
PART IV		98
ITEM 15.	EXHIBITS AND FINANCIAL STATEMENT SCHEDULES	98
ITEM 16.	FORM 10-K SUMMARY	103
	SIGNATURES	103

PART I

References in this Form 10-K to “Achieve Life Sciences,” “Achieve,” the “Company,” “we,” “us” or “our” refer to Achieve Life Sciences, Inc. and its wholly owned subsidiaries. The information in this Annual Report on Form 10-K contains certain forward-looking statements, including statements related to clinical trials, regulatory approvals, markets for our products, new product development, capital requirements and trends in our business that involve risks and uncertainties. Our actual results may differ materially from the results discussed in the forward-looking statements. Factors that might cause such a difference include those discussed in “Business,” “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” as well as those discussed elsewhere in this Annual Report on Form 10-K.

Forward-Looking Statements

This Annual Report on Form 10-K contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements involve a number of risks and uncertainties. We caution readers that any forward-looking statement is not a guarantee of future performance and that actual results could differ materially from those contained in the forward-looking statement. These statements are based on current expectations of future events. Such statements include, but

2

are not limited to, statements about future financial and operating results, plans, objectives, expectations and intentions, costs and expenses, interest rates, outcome of contingencies, financial condition, results of operations, liquidity, business strategies, cost savings, objectives of management and other statements that are not historical facts. You can find many of these statements by looking for words like “believes,” “expects,” “anticipates,” “estimates,” “may,” “should,” “will,” “could,” “plan,” “intend” or similar expressions in this Annual Report on Form 10-K or in documents incorporated by reference into this Annual Report on Form 10-K. We intend that such forward-looking statements be subject to the safe harbors created thereby. Examples of these forward-looking statements include, but are not limited to:

•progress and preliminary and future results of any clinical trials;

•anticipated regulatory filings and U.S. Food and Drug Administration, or FDA, responses, recommendations, requirements or additional future clinical trials;

•our ability to raise additional capital as needed to fund our planned development and commercialization efforts and repay our existing debt;

•the potential benefits and differentiated profile, FDA approval, commercialization and commercial market for cytisinicline;

•the performance of, and our ability to obtain sufficient supply of cytisinicline in a timely manner from, third-party suppliers and manufacturers;

•timing and plans for the expansion of our focus to develop cytisinicline for other forms of nicotine dependence;

•timing and amount of future contractual payments, product revenue and operating expenses;

•market acceptance of our products and the estimated potential size of these markets; and

•our expectations regarding the impact of the macroeconomic and geopolitical environment, including fluctuating inflation, interest and tariff rates, increased volatility in the debt and equity markets, instability in the global banking system, global health crises and pandemics and geopolitical conflict, and their potentially material adverse impact on our business and the execution of our preclinical studies and clinical trials.

These forward-looking statements are based on the current beliefs and expectations of our management and are subject to significant risks and uncertainties. If underlying assumptions prove inaccurate or unknown risks or uncertainties materialize, actual results may differ materially from current expectations and projections. Factors that might cause such a difference include those discussed in Item 1A “Risk Factors,” as well as those discussed elsewhere in the Annual Report on Form 10-K.

You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this Annual Report on Form 10-K or, in the case of documents referred to or incorporated by reference, the date of those documents.

All subsequent written or oral forward-looking statements attributable to us or any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. We do not undertake any obligation to release publicly any revisions to these forward-looking statements to reflect events or circumstances after the date of this Annual Report on Form 10-K or to reflect the occurrence of unanticipated events, except as may be required under applicable U.S. securities law. If we do update one or more forward-looking statements, no inference should be drawn that we will make additional updates with respect to those or other forward-looking statements.

Summary of Risk Factors

An investment in our common stock involves various risks, and prospective investors are urged to carefully consider the matters discussed in the section titled “Risk Factors” prior to making an investment in our common stock. These risks include, but are not limited to, the following:

•Substantial doubt exists as to our ability to continue as a going concern. Our ability to continue as a going concern is subject to material uncertainty and dependent on our success at raising additional capital sufficient to meet our obligations on a timely basis. If we fail to obtain additional financing when needed, we may be unable to complete the development, regulatory approval and commercialization of our product candidate.

•We have incurred substantial debt, which could impair our flexibility and access to capital and adversely affect our financial position, and our business would be materially adversely affected if we are unable to service our debt obligations.

3

•Cytisinicline is currently our sole product candidate and there is no guarantee that we will be able to successfully develop and commercialize cytisinicline.

•The development and commercialization of our product candidate is dependent upon securing sufficient quantities of cytisinicline from trees and other plants, which grow outside of the United States in a limited number of locations.

•We currently exclusively rely on Sopharma AD, or Sopharma, to manufacture cytisinicline for use in clinical trials. We plan to engage other third parties for our manufacturing processes, including to manufacture future supply of cytisinicline on a commercial scale, if approved. Our commercialization of cytisinicline could be stopped, delayed or made less profitable if Sopharma fails to obtain approval of government regulators, fails to provide us with sufficient quantities of product or fails to do so at acceptable quality levels or prices.

•We plan to submit a New Drug Application, or NDA, to the U.S. Food and Drug Administration, or FDA, for the marketing approval of cytisinicline as a drug therapy in treating nicotine dependence for smoking cessation, based largely on data from our completed Phase 3 ORCA-2 and ORCA-3 clinical trials and the ongoing ORCA-OL trial; however, there can be no assurance that the data from our clinical trials will ultimately support an NDA filing or that the FDA will grant marketing approval of cytisinicline without additional clinical or nonclinical studies, or at all.

•If we do not obtain the necessary regulatory approvals in the United States and/or other countries, we will not be able to sell cytisinicline.

•Cytisinicline may cause undesirable side effects or have other properties that could delay or prevent regulatory approval, limit the commercial viability of an approved label, or result in significant negative consequences following marketing approval, if any.

•It is difficult to evaluate our current business, predict our prospects and forecast our financial performance and growth.

•We face substantial competition, and our competitors may discover, develop or commercialize products faster or more successfully than us.

4

ITEM 1. BUSINESS

OVERVIEW OF OUR BUSINESS AND RECENT DEVELOPMENTS

We are a late-stage clinical specialty pharmaceutical company with a sole mission to address the global nicotine dependence epidemic in combustible cigarette and e-cigarette usage through the development and commercialization of cytisinicline. There are an estimated 29 million adults in the United States alone who smoke combustible cigarettes and an estimated 11 million adults in the United States who utilize e-cigarettes. Tobacco use is currently the leading cause of preventable death and is responsible for more than eight million deaths worldwide and nearly half a million deaths in the United States annually. More than 87% of lung cancer deaths, 61% of all pulmonary disease deaths, and 32% of all deaths from coronary heart disease are attributable to smoking and exposure to secondhand smoke.

While nicotine e-cigarettes are thought to be less harmful than combustible cigarettes, they remain highly addictive and can deliver harmful chemicals which can cause lung injury or cardiovascular disease. In 2024, 1.6 million high school and middle school students reported using e-cigarettes. Research shows adolescents who have used e-cigarettes are seven times more likely to become smokers one year later compared to those who have never used e-cigarettes. Recently, the U.S. Food and Drug Administration, or FDA, granted Breakthrough Therapy Designation for cytisinicline for nicotine e-cigarette, or vaping, cessation. Breakthrough Therapy Designation is a process that expedites the development and review of new drugs and biologics that are intended to treat serious or life-threatening conditions and have preliminary clinical evidence indicating substantial improvement over existing therapies. Currently, there are no FDA approved drug therapies indicated specifically as an aid to nicotine e-cigarette cessation. We believe cytisinicline represents a unique opportunity to significantly impact global health by addressing the considerable unmet need among millions of smokers and e-cigarettes users.

We expect to file a New Drug Application, or NDA, with the FDA for treatment of nicotine dependence for smoking cessation at the end of the second quarter of 2025. If approved, cytisinicline will become the first new prescription medicine in nearly two decades for smoking cessation. We believe cytisinicline is differentiated from existing smoking cessation treatments given its combination of efficacy, well-tolerated safety profile, and a shorter therapy duration, as demonstrated in clinical trials. Dependent on availability of funding, we intend to initiate Phase 3 clinical development of cytisinicline for nicotine dependence for e-cigarettes/vaping in the first half of 2026, which we expect to complete approximately 12 months after initiation, and may explore additional indications for the treatment of nicotine dependence in the future.

Cytisinicline as our Product Candidate

Our product candidate, cytisinicline, is a naturally occurring, plant-based alkaloid. In 2018, the U.S. Adopted Names Council adopted cytisinicline as the non-proprietary, or generic, name for the substance also known as cytisine.

Cytisinicline is structurally similar to nicotine and has a well-defined, dual-acting mechanism of action, being both a receptor agonist and antagonist. It is believed to work in treating nicotine dependence for smoking and e-cigarette cessation by interacting with nicotine receptors in the brain by reducing the severity of withdrawal symptoms, and reducing the reward and satisfaction associated with nicotine products. Cytisinicline is an investigational product candidate being developed for treatment of nicotine dependence and has not been approved by the FDA for any indication in the United States.

Cytisinicline as a 25-day downward titration regimen is an established smoking cessation treatment that has been approved and marketed in Central and Eastern Europe by Sopharma AD, or Sopharma, for over 20 years. It is estimated that over 20 million people have used Sopharma’s cytisinicline product to help treat nicotine dependence. We have developed an improved dosage, formulation, and simpler treatment schedule. The administration of our cytisinicline has demonstrated robust efficacy with minimal levels of adverse events in two randomized placebo-controlled Phase 3 studies. We have an exclusive license and a supply agreement with Sopharma for the development and commercialization of cytisinicline outside of Sopharma’s territories, which are predominately located in Central and Eastern Europe.

Cytisinicline Mechanism of Action

Cytisinicline binds with high affinity to the alpha-4 beta-2, or α4β2, nicotinic acetylcholine receptors in the brain. The α4β2 nicotinic receptor is a well-understood target in dependence. When nicotine binds to this receptor, it causes dopamine to be released in the mid-brain, reinforcing the dopamine reward system. This receptor has been implicated in the development and maintenance of nicotine dependence. Cytisinicline is believed to act as a partial agonist/antagonist binding to α4β2 nicotinic receptors in the brain and is thought to have two potential consequences in treating nicotine dependence. First, the partial agonism maintains some release of

5

dopamine (albeit at a very reduced level than that stimulated by nicotine) and therefore reduces nicotine craving, and second, the partial antagonism prevents nicotine binding so that nicotine no longer induces the same pleasure or reward stimulation.

Cytisinicline Opportunity

We have an exclusive license and supply agreement with Sopharma for the development and commercialization of cytisinicline outside of Sopharma’s territory, which consists of certain countries in Central and Eastern Europe, Scandinavia, North Africa, the Middle East and Central Asia, as well as Vietnam.

We are developing cytisinicline as a drug therapy in treating nicotine dependence for smoking cessation and e-cigarette cessation which would address the limitations of both prescription drugs and of Over-the-Counter, or OTC, products.

We believe that a substantial market exists in the United States, European Union, or EU, and the rest of the world for a new, safe and effective smoking cessation treatment. We believe cytisinicline is differentiated from existing smoking cessation treatments given its combination of robust efficacy, minimal frequency of side effects and optional shorter course of therapy, as shown in two randomized placebo-controlled Phase 3 studies. Our goal is to obtain approval from the FDA and from other regulatory agencies for the sale and distribution of cytisinicline in the United States and subsequently to other countries outside of Sopharma’s territory.

OVERVIEW OF OUR REGULATORY PROGRESS AND CLINICAL PHASE 3 PROGRAM

Overview of Regulatory Progress

Smoking Cessation Indication

In June 2017, we filed an Investigational New Drug Application, or IND, with the FDA, for evaluation of cytisinicline as a treatment for smoking cessation. This IND included required non-clinical toxicology studies that were sponsored by the National Center for Complementary and Integrative Health, or NCCIH, a division of the NIH and by the National Cancer Institute, or NCI, to assist in our IND for investigating cytisinicline as a smoking cessation treatment.

In May 2018, we held an end of Phase 2 meeting with the FDA to review and receive guidance on our Phase 3 clinical program and overall development plans to support an NDA for the 25-day downward titration cytisinicline regimen. The FDA recommended to consider evaluating higher dosing, a more simplified daily regimen, and possible longer dosing in our development program. This FDA review also included our plans and their recommendations for non-clinical studies, standard drug-to-drug interaction and reproductive/teratogenicity studies. Detailed plans for chronic toxicology, carcinogenicity studies, and additional clinical studies regarding a maximum tolerated dose, renal impairment, QT interval prolongation, longer term exposure and adequate demonstration of safety and efficacy from planned randomized, placebo-controlled, Phase 3 clinical trials were also discussed.

In December 2018, we announced that the FDA agreed with our Initial Pediatric Study Plan, specifically, providing a full waiver for evaluating cytisinicline in a pediatric population. The reasons for the full waiver were based on the low numbers of children smoking under the age of 12 and the logistical difficulties of recruiting treatment-seeking smokers in the adolescent age group. The agreed upon Initial Pediatric Study Plan is expected to be included as part of our future application for marketing approval of cytisinicline.

In November 2019, we held a type C meeting with the FDA to review results from our Phase 2 ORCA-1 study and our revisions to the Phase 3 clinical program using a simplified 3 mg tablet administered three times a day, or TID, dosing schedule. The FDA agreed that the 3 mg TID dosing schedule was acceptable for our Phase 3 clinical program. In March 2019, we had also initiated our Phase 1 clinical study to assess for dose limiting adverse effects, or AEs, that would define the maximum tolerated dose, or MTD, for a single administered oral dose of cytisinicline. Because dose limiting AEs for the MTD could not be reached per protocol definitions in the study, the results were reviewed with the FDA at this November 2019 Type C meeting, with an agreement that further escalation beyond the single 30 mg dose was not required in the study.

Additional NCCIH and NCI sponsored non-clinical toxicology studies that evaluated reproductive toxicology and company sponsored non-clinical toxicology studies that evaluated longer cytisinicline exposure beyond one month to at least three months for support in initiating our Phase 3 clinical program were submitted in 2020. This allowed the initiation of our two Phase 3 clinical trials in the fourth quarter of 2020 and first quarter of 2022.

Additional plans for our Phase 1 studies regarding pharmacokinetics, or PK, assessments for subjects with renal impairment and evaluations for possible QT interval prolongation, which were first discussed with the FDA as part of the end of Phase 2 meeting in 2018, were followed by more detailed review and agreement with the FDA during 2022 and 2023. These studies have now been completed.

6

During 2022 and 2023, we had several Type C and Type D meetings with the FDA regarding the adequacy of our completed nonclinical studies, overall clinical pharmacology information, manufacturing product information, and our Integrated Safety Summary, or ISS, analysis plans for a future NDA submission.

In the fourth quarter of 2023, we initiated our pre-NDA discussions with the FDA regarding the adequacy of our efficacy and safety information for proceeding with an NDA submission. The FDA expressed support for an NDA submission based on adequate data to assess for efficacy from our two completed randomized and controlled Phase 3 trials. In addition, the FDA advised that long-term exposure data to assess for safety beyond 12 weeks would be needed to adequately assess safety risks given that the FDA views smoking cessation drugs as products for chronic, repeated, and intermittent use as patients may relapse and require subsequent courses of treatment over a lifetime. In the first quarter of 2024, we reached agreement with the FDA that a single, open-label study evaluating the long-term safety effects of cytisinicline will be sufficient to complete the requirement and enable an NDA submission anticipated at the end of the second quarter of 2025.

E-cigarette (vaping) Cessation Indication

In July 2021, we announced that we were awarded a grant from the National Institute on Drug Abuse, or NIDA, of the National Institutes of Health, or NIH, to evaluate the use of cytisinicline as a treatment for cessation of nicotine e-cigarette use. This initial grant award was utilized to complete critical regulatory activities for the submission of a second IND to the FDA for evaluation of cytisinicline as a treatment for nicotine e-cigarette cessation, or vaping cessation. In November 2021, we announced that the FDA had completed their review and accepted this IND to investigate cytisinicline in this population.

In the third quarter of 2024, we received Breakthrough Therapy Designation from the FDA for cytisinicline for nicotine e-cigarette, or vaping, cessation. Breakthrough Therapy Designation is designed to expedite the development and review of drugs that are intended to treat serious conditions when preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over available therapies. It provides product sponsors the ability to receive an FDA cross-disciplinary project management team for interactive communications with senior managers and expert reviewers from FDA to expedite the development of a product.

In December 2024, we announced completing our end-of-Phase 2 meeting with the FDA to review and receive guidance on our proposed Phase 3 clinical program for a future supplemental NDA submission, or sNDA. We obtained FDA agreement on a proposed single Phase 3 study design for cytisinicline treatment in vaping cessation and on the additional requirements for submitting an sNDA, to expand cytisinicline for the treatment for vaping cessation. The FDA was in alignment on the proposed Phase 3 study design, including the inclusion/exclusion criteria, primary and secondary efficacy objectives, definition of vaping abstinence with biochemical verification, and other overall study assessments. The FDA agreed that one well-controlled Phase 3 trial, in addition to our completed Phase 2 ORCA-V1 trial and the safety exposure data from our ongoing ORCA-OL trial, would be sufficient for a vaping cessation indication as an sNDA.

Non-Clinical Program Supportive of IND and Phase 3 Clinical Development

Non-clinical toxicology studies were sponsored by the NCCIH and by the NCI, to assist in our IND for investigating cytisinicline as a smoking cessation treatment. We filed this IND for cytisinicline with the FDA in 2017, which included the NCCIH sponsored non-clinical studies. Additional NCCIH and NCI sponsored non-clinical toxicology studies that evaluated reproductive toxicology were later submitted in support of our Phase 3 program.

In December 2017, we initiated a series of drug metabolism, drug-to-drug interaction, and transporter studies of cytisinicline and results from these studies were announced in June 2018. These studies demonstrated that cytisinicline has no clinically significant interaction with any of the hepatic enzymes commonly responsible for drug metabolism nor clinically significant interaction with drug transporters. This suggests that cytisinicline may be administered with other medications without the need to modify the dose of any co-administered medications.

In addition, company sponsored non-clinical toxicology studies that evaluated longer cytisinicline exposure beyond one month to at least three months were submitted in 2020 prior to initiating our Phase 3 studies.

Non-clinical toxicology studies that are required for an NDA, including two longer-term chronic toxicology studies and two carcinogenicity studies, have been completed and submitted to the FDA.

Ongoing Company-Sponsored Clinical Trial

Ongoing Open Label ORCA-OL Trial

7

In May 2024 we initiated the ORCA-OL open label exposure trial. The trial is designed to provide long-term cytisinicline safety exposure data from subjects who currently smoke or use nicotine e-cigarettes and will receive cytisinicline treatment for up to one year. Cumulative 6-month exposure data from this study is required for submission of our cytisinicline NDA.

ORCA-OL is designed to evaluate the long-term exposure of 3 mg cytisinicline treatment dosed three times daily in U.S. adults who want to quit smoking or vaping. In October 2024, we announced that the trial completed enrollment of 479 subjects at 29 clinical trial sites across the United States. We enrolled subjects who had previously participated in the ORCA-program studies. Participants were contacted to enroll in the ORCA-OL study if they were currently using either, or both, combustible cigarettes or nicotine containing e-cigarettes (vaping). Subjects receive cytisinicline treatment and are monitored for safety events for up to one year. The primary endpoint is frequency of serious adverse events, or SAEs. Other safety and efficacy outcomes will be collected.

Based on agreement with the FDA to follow ICH E1 guidance for longer-term safety exposure for pharmaceuticals, results of the ORCA-OL trial are expected to meet the FDA requirement to provide safety data on a minimum of 300 subjects treated with cytisinicline for a cumulative period of six months as part of the anticipated NDA submission. Subsequently, data on at least 100 subjects treated for a total cumulative period of one year will be provided prior to potential product approval. ORCA-OL is being conducted at 29 clinical trial sites across the United States, all of which participated in previous ORCA-program clinical trials.

In January 2025, we announced that the ORCA-OL trial had reached the goal of at least 300 subjects completing six months of cumulative cytisinicline treatment. The safety data from the 300 subjects treated with cytisinicline for a cumulative period of six months will be in included in our planned NDA submission at the end of the second quarter of 2025.

CLINICAL DEVELOPMENT PROGRAM

Company-Sponsored Completed Phase 1 Trials

Food Effect Phase 1 Trials

In August 2017, we initiated our IND with a Phase 1 clinical study evaluating the effect of food on the bioavailability of cytisinicline in normal healthy volunteers. We completed the food effect study and announced the results in November of 2017 demonstrating similar bioavailability of cytisinicline in fed and fasted subjects.

In 2018, Sopharma commercially launched a newly formulated cytisinicline tablet with improved shelf life in their territories. In May 2018, we initiated a study to evaluate the effect of food on the bioavailability of cytisinicline in volunteer smokers using this new formulation and data results were announced in September 2018. The study demonstrated similar bioavailability of cytisinicline in fed and fasted subjects. Cytisinicline was extensively absorbed after oral administration with maximum cytisinicline concentration levels observed in the blood within less than two hours with or without food. Total excretion levels of cytisinicline also remained equivalent in both the fed and fasted states.

In 2023, we evaluated our planned commercial 3 mg formulated cytisinicline tablet in a 2-part Phase 1 clinical study with the first part evaluating the effect of food on the bioavailability of the 3 mg tablet in volunteer smokers. The study demonstrated similar bioavailability of cytisinicline in fed and fasted subjects and total excretion levels of cytisinicline also remained equivalent in both the fed and fasted states.

In all Phase 1 Food Effect studies, cytisinicline was well tolerated.

Other Phase 1 Safety Trials

In October 2017, we initiated a clinical study assessing the repeat-dose PK and pharmacodynamics, or PD, effects of 1.5 mg and 3 mg cytisinicline in 26 healthy volunteer smokers when administered over the 25-day downward titration regimen as marketed by Sopharma in their territories. Final results were presented at the Annual Meeting of the Society for Research on Nicotine and Tobacco, or SRNT, in February 2019. All 26 subjects completed the study. Predictable increases in plasma cytisinicline concentrations were observed with increasing unit dosing from 1.5 mg to 3 mg. Smokers in the study were not required to have a designated or predetermined quit date. Overall, subjects had an 80% reduction in cigarettes smoked, 82% reduction in expired CO, and 46% of the subjects achieved biochemically verified smoking abstinence by day 26. Subjects who received 3 mg cytisinicline over the 25 days had a trend for higher smoking abstinence compared to subjects who received 1.5 mg cytisinicline. The AEs observed were mostly mild with transient headaches as the most commonly reported event. No serious adverse effects, or SAEs, were observed in the study.

In March 2019, we initiated a clinical trial to evaluate the dose limiting AEs that would define the maximum tolerated dose, or MTD, for a single administered oral dose of cytisinicline. This study evaluated smokers who received one single dose of cytisinicline. The

8

starting dosage of cytisinicline was 6 mg and was to be increased in separate groups of subjects for each escalated dose level until defined stopping criteria (based on the occurrence of dose-limiting AEs) were reached. A safety review after each dose level was performed by an independent Data Safety Monitor Committee, or DSMC, before escalation to the next dose level. Six dose levels were pre-planned with 21 mg cytisinicline as the highest dose level. When the MTD was not reached at 21 mg, the study was amended to evaluate doses up to 30 mg, as recommended by the DSMC. At this 30 mg dose, the stopping criteria of dose-limiting AEs were still not met, but the DSMC recommended stopping the study since the frequency of gastrointestinal symptoms were approaching an MTD level. The results were reviewed with the FDA, with an agreement that further escalation beyond the single 30 mg dose was not required. This Phase-1 study fulfills an FDA requirement to evaluate potential safety issues in the event patients exceed a recommended single dose outside of a clinical trial setting.

Three additional Phase 1 clinical studies were conducted in 2022 and 2023 for the NDA: one pharmacokinetics, or PK, study to evaluate for any increased cytisinicline blood levels in subjects who have various levels of renal impairment; another PK study to determine various remaining PK parameters for the 3 mg TID cytisinicline regimen, including the timing of steady state dosing; and a cardiac safety study to evaluate for any effects of cytisinicline on QT interval prolongation. All 3 studies have been completed.

The renal impairment study demonstrated that cytisinicline is excreted unchanged in urine and the pharmacokinetics of cytisinicline are dependent on renal function. Cytisinicline was generally observed to be well tolerated in subjects with varying degrees of renal impairment compared to subjects with normal renal function.

The PK study demonstrated that the 3mg cytisinicline TID dosing regimen reached steady state cytisinicline pharmacokinetics by the second day of TID administration.

The cardiac safety QT/QTc study evaluating therapeutic and supratherapeutic high doses of cytisinicline demonstrated that cytisinicline has no clinically relevant effect on QT interval prolongation or cardiac repolarization.

Company-Sponsored Completed Phase 2 Trials

Phase 2b ORCA-1 Trial for Smoking Cessation

We conducted the Phase 2b ORCA-1 dose selection trial, which was initiated in October 2018 and evaluated 254 smokers in the United States. The trial evaluated both 1.5 mg and 3 mg doses of cytisinicline on the standard declining titration schedule as well as a more simplified TID dosing schedule, both over 25 days. The trial was randomized and blinded to compare the effectiveness of the cytisinicline doses and schedules to respective placebo groups. All subjects were treated for 25 days, provided behavioral support, and followed up for an additional four weeks to assess smoking abstinence.

The primary endpoint in the study was the reduction in daily smoking, a self-reported measure. Three of the four cytisinicline treatment arms demonstrated a statistically significant improvement, p<0.05, compared to placebo. The fourth arm trended to significance (p= 0.052). Across all treatment arms, over the 25-day treatment period, subjects on cytisinicline experienced a 74-80% median reduction in the number of cigarettes smoked, compared to a 62% reduction in the placebo arms.

The secondary endpoint of the trial was a 4-week continuous abstinence rate, which is the more relevant endpoint for regulatory approval. All cytisinicline treatment arms showed significant improvements in abstinence rates compared to the placebo arms. Notably, the 3 mg TID cytisinicline arm demonstrated a 50% abstinence rate at week 4, compared to 10% for placebo (p<0.0001) and a continuous abstinence rate, weeks 5 through 8, of 30% for cytisinicline compared to 8% for placebo (p= 0.005). Smokers in the 3 mg TID arm had an Odds Ratio, or OR, of 5.04 (95% CI: 1.42, 22.32) for continuous abstinence from week 5 to week 8, compared with placebo, meaning, smokers receiving 3 mg cytisinicline TID were five times more likely to stop smoking compared to smokers receiving placebo.

At week 4, all four cytisinicline arms also demonstrated statistically significant (p<0.05) reductions in expired carbon monoxide, or CO, a biochemical measure of smoking activity. Expired CO levels had declined by a median of 71-80% in the cytisinicline treatment arms, compared to only 38% in the placebo arms.

Cytisinicline was well-tolerated with no SAEs reported. The most commonly reported (>5%) adverse events, or AEs, across all cytisinicline treatment arms versus placebo arms were abnormal dreams, insomnia, upper respiratory tract infections, and nausea. In the 3 mg TID treatment arm versus placebo arms, the most common AEs were abnormal dreams, insomnia, and constipation (each 6% vs 2%), upper respiratory tract infections (6% vs 14%), and nausea (6% vs 10%), respectively. Compliance with study treatment was greater than 94% across all arms.

9

A summary of AEs reported in subjects in the ORCA-1 trial is included in the table below.

	TID		Declining Titration		Pooled
	1.5 mg (n=52)	3.0 mg (n=50)	1.5 mg (n=51)	3.0 mg (n=50)	Cytisinicline (n=203)	Placebo (n=51)
At least 1 AE	20 (39%)	21 (42%)	29 (57%)	23 (46%)	93 (46%)	24 (47%)
URTI	5 (10%)	3 (6%)	3 (6%)	2 (4%)	13 (6%)	7 (14%)
Abnormal dreams	4 (8%)	3 (6%)	4 (8%)	7 (14%)	18 (9%)	1 (2%)
Nausea	1 (2%)	3 (6%)	5 (10%)	3 (6%)	12 (6%)	5 (10%)
Insomnia	4 (8%)	3 (6%)	3 (6%)	4 (8%)	14 (7%)	1 (2%)
Headache	6 (12%)	2 (4%)	1 (2%)	1 (2%)	10 (5%)	2 (4%)
Fatigue	3 (6%)	1 (2%)	1 (2%)	2 (4%)	7 (3%)	2 (4%)
Constipation	1 (2%)	3 (6%)	0 (0%)	0 (0%)	4 (2%)	1 (2%)

The outcome of the ORCA-1 trial was the selection of 3 mg TID for Phase 3 development. Overall, the 3 mg dose administered TID demonstrated the best overall safety and efficacy when compared to other doses and administrations studies in ORCA-1. The results from ORCA-1 study were published in the journal Nicotine and Tobacco Research in 2021.

Phase 2 ORCA-V1 Trial for E-cigarette (Vaping) Cessation

In June 2022, following NIDA/NIH review of completed regulatory and clinical operational milestones plus acceptance of the IND by the FDA, we announced that we were awarded the next grant funding from NIDA in the amount of approximately $2.5 million. The full grant award of $2.8 million covered approximately half of the total ORCA-V1 clinical study costs. The Primary Investigators for the grant were Dr. Cindy Jacobs, our President and Chief Medical Officer, and Dr. Nancy Rigotti, Professor of Medicine at Harvard Medical School and Director, Tobacco Research and Treatment Center, Massachusetts General Hospital.

In June 2022, we announced the initiation of the Phase 2 ORCA-V1 clinical trial. In April 2023, we reported positive topline results showing a statistically significant vaping cessation benefit for cytisinicline-treated participants in the ORCA-V1 trial.

ORCA-V1 evaluated 160 adults who used e-cigarettes on a daily basis at five clinical trial locations in the United States. ORCA-V1 participants were randomized to receive 3 mg cytisinicline three times daily or placebo for 12 weeks in combination with standard cessation behavioral support.

The primary endpoint for ORCA-V1 was biochemically verified continuous abstinence from nicotine e-cigarette use, measured during the last 4 weeks of treatment. Subjects who received 12 weeks of cytisinicline treatment had 2.64 times higher odds, or likelihood, to have quit vaping during the last four weeks of treatment compared to subjects who received placebo (p=0.04). The vaping cessation rate during weeks 9 through 12 was 31.8% for cytisinicline compared to 15.1% for placebo. A benefit in favor of cytisinicline was consistently observed across the secondary endpoints. Additionally, a cessation benefit was observed for cytisinicline across clinical trial sites and participant demographics such as age, gender, race, or whether they had smoked cigarettes in the past.

10

Cytisinicline was well tolerated and no SAEs were reported. Similar rates of AEs were observed between treatment arms (54.7% in the placebo arm vs. 50.9% in the cytisinicline arm). The most commonly reported (>5%) AEs in the placebo arm, in order of frequency, were nausea, COVID-19 infection, headache, anxiety, and upper respiratory tract infection. In the cytisinicline arm, >5% AEs reported, in order of frequency, were sleep disturbances, anxiety, headache, fatigue, and upper respiratory tract infection.

ORCA-V1 trial results were presented at the Society for Research on Nicotine and Tobacco, or SRNT, European Annual Meeting in September 2023, the SRNT U.S. Annual Meeting in March 2024, the Society of General Internal Medicine U.S. Annual Meeting in May 2024 and final study results were published in the Journal of the American Medical Association, or JAMA, Internal Medicine in May 2024.

Company-Sponsored Phase 3 Clinical Trials for Smoking Cessation Indication

Completed Phase 3 ORCA-2 Trial

In April 2022, we announced positive topline results for the Phase 3 ORCA-2 clinical trial. ORCA-2 was initiated in October 2020 and evaluated the efficacy and safety of 3 mg cytisinicline dosed three times daily compared to placebo in 810 adult smokers at 17 clinical sites in the United States. ORCA-2 participants were randomized to one of three study arms to determine the smoking cessation efficacy and safety profile of cytisinicline when administered for either 6 or 12 weeks, compared to placebo. All subjects received standard behavioral support and were assigned to one of the following groups:

•Arm A: 12 weeks of placebo

•Arm B: 6 weeks of cytisinicline, followed by 6 weeks of placebo

•Arm C: 12 weeks of cytisinicline

The ORCA-2 study had two independent primary endpoints that evaluated for successful smoking cessation for both 6-week and 12-week durations of cytisinicline treatment, compared to placebo. The primary endpoints for ORCA-2 were biochemically verified continuous smoking cessation measured during the last 4 weeks of each treatment duration. Both the 6- and 12-week cytisinicline treatments demonstrated significantly better quit rates than placebo with ORs of 8.0 and 6.3, respectively.

•Subjects who received 12 weeks of cytisinicline treatment had 6.3 times higher odds, or likelihood, to have quit smoking during the last 4 weeks of treatment compared to subjects who received placebo (p<0.0001). The abstinence rate during weeks 9-12 was 32.6% for cytisinicline compared to 7.0% for placebo.

•Subjects who received 6 weeks of cytisinicline treatment had 8.0 times higher odds, or likelihood, to have quit smoking during the last 4 weeks of treatment compared to subjects who received placebo (p<0.0001). The abstinence rate during weeks 3-6 was 25.3% for cytisinicline compared to 4.4% for placebo.

The secondary endpoints measured continuous smoking abstinence after treatment out to 24 weeks. Both the 6- and 12-week secondary endpoints for continuous abstinence demonstrated significantly better quit rates for cytisinicline treated subjects than placebo. The continuous abstinence rate from week 9 to 24 was 21.1% for the 12-week cytisinicline arm compared to 4.8% for placebo, with an OR of 5.3 (p<0.0001). The continuous abstinence rate from week 3 to 24 was 8.9% for the 6-week cytisinicline arm compared to 2.6% for placebo, with an OR of 3.7 (p=0.0016).

A third secondary endpoint compared the two cytisinicline treatment arms and evaluated for an increased risk in relapse from week 6 to week 24 when subjects were switched to placebo during week 6 to week 12 (Arm B) instead of receiving cytisinicline for another 6 weeks during week 6 to week 12 (Arm C). The analysis showed that there was no increased risk of smoking relapse in subjects who had successfully quit smoking by week 3 through week 6 if they received placebo instead of continuing cytisinicline from week 6 to week 12.

Cytisinicline was well tolerated with no treatment-related SAEs reported. The most commonly reported AEs (occurring greater than 5% overall in the study) for placebo, 6-week cytisinicline, and 12-week cytisinicline are shown in the following table:

	Placebo	6-Weeks Cytisinicline	12-Weeks Cytisinicline
Insomnia	4.8%	8.6%	9.6%

11

Abnormal Dreams	3.0%	8.2%	7.8%
Headaches	8.1%	6.7%	7.8%
Nausea	7.4%	5.9%	5.6%

Additional analyses from the ORCA-2 trial were presented at the SRNT annual meeting in March 2023 and final study results were published in JAMA in July 2023.

Completed Phase 3 ORCA-3 Trial

In May 2023, we announced positive topline results for our Phase 3 ORCA-3 clinical trial. ORCA-3 was initiated in January 2022 and was a confirmatory Phase 3 trial required for registrational approval of cytisinicline in the United States and had the same design as the Phase 3 ORCA-2 trial. This Phase 3 trial evaluated the efficacy and safety of 3 mg cytisinicline dosed three times daily compared to placebo in 792 adult smokers at 20 clinical sites. ORCA-3 participants were randomized to one of three study arms to evaluate cytisinicline administered for either 6 or 12 weeks, compared to placebo. All subjects received standard behavioral support and were assigned to one of the following groups:

•Arm A: 12 weeks of placebo

•Arm B: 6 weeks of cytisinicline, followed by 6 weeks of placebo

•Arm C: 12 weeks of cytisinicline

The primary outcome measure of success in the ORCA-3 trial was biochemically verified continuous smoking cessation during the last four weeks of treatment in the 6 and 12-week cytisinicline treatment arms compared with placebo. Each treatment arm was compared independently to the placebo arm. Secondary outcome measures were conducted to assess continued smoking abstinence rates through six months from the start of study treatment.

Primary endpoint:

•Subjects who received 12 weeks of cytisinicline treatment had 4.4 times higher odds, or likelihood, to have quit smoking during the last 4 weeks of treatment compared to subjects who received placebo (p<0.0001). The smoking cessation rate during weeks 9 through 12 was 30.3% for cytisinicline compared to 9.4% for placebo.

•Subjects who received 6 weeks of cytisinicline treatment had 2.85 times higher odds, or likelihood, to have quit smoking during the last 4 weeks of treatment compared to subjects who received placebo (p=0.0008). The smoking cessation rate during weeks 3 through 6 was 14.8% for cytisinicline compared to 6% for placebo.

Secondary endpoint:

•The continuous smoking cessation rate from week 9 to week 24 was 20.5% for the 12-week cytisinicline arm compared to 4.2% for placebo, with an odds ratio of 5.79 (p<0.0001).

•The continuous smoking cessation rate from week 3 to week 24 was 6.8% for the 6-week cytisinicline arm compared to 1.1% for placebo, with an odds ratio of 6.25 (p=0.0006).

The third secondary endpoint compared the two cytisinicline treatment arms for an increased risk in relapse from week 6 to week 24 when subjects were switched to placebo during week 6 to week 12 (Arm B) instead of receiving cytisinicline for another 6 weeks during week 6 to week 12 (Arm C). The analysis showed that there was no increased risk of smoking relapse in subjects who had successfully quit smoking by week 3 through week 6 and switched to placebo.

ORCA-3 subjects had an average age of 53 years, smoked a median of 20 cigarettes per day at baseline, and had a median smoking history of 36 years with 4 prior quit attempts.

Similar to ORCA-2 findings, cytisinicline was well-tolerated with no treatment-related SAEs reported. The most commonly reported (>5% overall) AEs for placebo, 6-week cytisinicline, and 12-week cytisinicline are shown in the following table:

12

	Placebo	6-Weeks Cytisinicline	12-Weeks Cytisinicline
Insomnia	7.6%	11.0%	11.9%
Abnormal Dreams	5.7%	9.1%	7.7%
Nausea	7.3%	9.5%	6.9%
Headaches	6.1%	7.6%	8.5%

OVERVIEW OF SMOKING CESSATION MARKET AND TREATMENT OPTIONS

Overview of the Tobacco Epidemic

Smoking remains the leading cause of preventable death worldwide and in the United States. The World Health Organization, or WHO, estimates that there are approximately 1.3 billion tobacco users globally and that tobacco kills more than 8 million people each year. More than 7 million of those deaths are the result of direct tobacco use, while around 1.3 million are the result of non-smokers being exposed to second-hand smoke. In the United States alone, cigarette smoking is responsible for more than 480,000 deaths every year, or about one in five deaths.

The Centers for Disease Control and Prevention, or CDC, estimates that the annual cost of smoking related illnesses in the United States is more than $600 billion in direct medical care and lost productivity. Over 16 million people in the United States are living with a disease caused by smoking. Among these diseases are cancer, heart disease, stroke, lung diseases, diabetes and chronic obstructive pulmonary disease which includes emphysema and chronic bronchitis. Smoking also increases risk for tuberculosis, certain eye diseases and problems of the immune system, including rheumatoid arthritis. More than 87% of lung cancer deaths, 61% of all pulmonary disease deaths, and 32% of all deaths from coronary heart disease are attributable to smoking and exposure to secondhand smoke according to the CDC. Tobacco smoking is highly addictive, and research suggests that nicotine may be as addictive as heroin, cocaine and alcohol. The CDC estimates that more people in the United States are addicted to nicotine than any other drug and reports that, historically, nearly 70% of smokers desired to quit and 55% made an attempt to do so in the prior year. Despite the high number of attempts, fewer than one in ten people are successful in their attempt to quit each year. Additionally, up to 60% of people who quit smoking relapse in the first year.

One increasingly popular alternative to smoking is the use of e-cigarettes, or vaping, which deliver liquid nicotine into a mist or vapor which is inhaled. This method of consumption avoids the chemicals that are associated with cigarette smoke but may have other associated health and safety issues. The emerging use of e-cigarettes is contributing to the growing population of people who are addicted to nicotine.

According to data from the National Health Interview Survey, published by the CDC in May 2023, it is estimated that more than 11 million adults in the United States used e-cigarettes in 2021.

A study that we conducted and that was presented at the 2021 SRNT Annual Meeting, showed results from surveying approximately 500 users of nicotine vaping devices or e-cigarettes with approximately 73% of participants responding that they intend to quit vaping within the next three to 12 months. Of those who intended to quit even sooner, within the next 3 months, more than half stated they would be extremely likely to try a new prescription product to help them do so. Further, survey data published in JAMA Network Open in 2021, found that 61% of adult vape users overall endorsed future plans to quit. Intentions to quit were highest, reported at 66%, in those survey participants who were former cigarette smokers and currently using vape devices.

We believe that cytisinicline, if approved, could be the first prescription drug indicated for vape and e-cigarette users who are ready to quit their nicotine dependence.

Overview of Smoking Cessation Marketplace & Treatments

According to DelveInsight’s 2020 report “Smoking Cessation Market Insights, Epidemiology and Market Forecast”, global revenues for prescription smoking cessation therapies are estimated to reach $5.6 billion by 2030. In 2023, approximately 8 million prescriptions were written for smoking cessation in the United States alone.

Only two non-nicotine, prescription treatments for smoking cessation are currently available in the United States: “varenicline” (formerly marketed by Pfizer as Chantix) and “bupropion” (formerly marketed by GlaxoSmithKline as Zyban). Both are currently available as generic formulations. Varenicline requires a minimum three-month treatment period and bupropion is recommended for a period between seven and 12 weeks. While both have been proven effective in aiding smoking cessation, they are also associated with significant side effects and early discontinuations from treatment. Varenicline’s labeling indicates elevated instances of nausea,

13

abnormal dreams, constipation, flatulence, and vomiting may be experienced by varenicline-treated patients compared to placebo-treated patients, and buproprion’s product label discloses potential adverse reactions including insomnia, rhinitis, dry mouth, dizziness, nervous disturbance, anxiety, nausea, constipation, arthralgia and seizures. High uptake into the brain combined with activity at “off target” receptors could be responsible for varenicline’s adverse event profile.

In June 2021, Pfizer Inc. halted the distribution of Chantix (varenicline) after heightened levels of a nitrosamine impurity, called N-nitroso-varenicline, which were above the FDA’s acceptable daily intake limit, were found in some lots of Chantix pills. Long-term use of products with N-nitroso-varenicline may be associated with a potential increased cancer risk in humans. In September 2021, Pfizer announced a nationwide recall in the United States of all lots of Chantix and have also withdrawn the product in other countries around the globe. Prior to market withdrawal and launch of generic Chantix (varenicline), global sales of branded Chantix peaked at $1.1 billion. Of those sales, approximately 75% were attributable to the U.S. market.

The vast majority of OTC smoking cessation aids are NRTs. NRTs come in many forms, including gums, lozenges and patches, and have been shown to be less effective than prescription drugs. For example, a Cochrane Group independent database review of nicotine receptor partial agonists published in 2016 compared varenicline with a number of NRTs and varenicline has been proven to be more effective than the NRTs, as demonstrated in head-to-head studies.

We believe that cytisinicline represents a unique opportunity to significantly impact global health by addressing the considerable unmet need among millions of smokers and e-cigarettes users. If approved by the FDA, it stands to become the first new prescription medicine in nearly two decades aimed at aiding individuals in overcoming nicotine dependence. With its product profile, cytisinicline is positioned to offer a novel solution characterized by robust efficacy in our clinical trials, without the burdensome side effects which have hindered compliance and adoption with current treatments. Additionally, its dosing flexibility with a 6 or 12-week regimen, along with its natural derivation, is perceived favorably by certain potential patients.

LICENSE & SUPPLY AGREEMENTS

Sopharma

In 2009 and 2010, we entered into a license agreement, or the Sopharma License Agreement, and a supply agreement, or the Sopharma Supply Agreement, with Sopharma. Pursuant to the Sopharma License Agreement, we were granted access to all available manufacturing, efficacy and safety data related to cytisinicline, as well as a granted patent in several European countries including Germany, France and Italy related to oral dosage forms of cytisinicline. Additional rights granted under the Sopharma License Agreement include the exclusive use of, and the right to sublicense, the trademark Tabex in all territories—other than certain countries in Central and Eastern Europe, Scandinavia, North Africa, the Middle East and Central Asia, as well as Vietnam, where Sopharma or its affiliates and agents already market Tabex—in connection with the marketing, distribution and sale of products. Under the Sopharma License Agreement, we agreed to pay a nonrefundable license fee. In addition, we agreed to make certain royalty payments equal to a mid-teens percentage of all net sales of Tabex branded products in our territory during the term of the Sopharma License Agreement, including those sold by a third party pursuant to any sublicense which may be granted by us. We have agreed to cooperate with Sopharma in the defense against any actual or threatened infringement claims with respect to Tabex. Sopharma has the right to terminate the Sopharma License Agreement upon the termination or expiration of the Sopharma Supply Agreement. The Sopharma License Agreement will also terminate under customary termination provisions including bankruptcy or insolvency and material breach. To date, any amounts paid to Sopharma pursuant to the Sopharma License Agreement have been immaterial.

A cross-license exists between us and Sopharma whereby we grant to Sopharma rights to any patents or patent applications or other intellectual property rights filed by us in Sopharma territories.

On May 14, 2015, we and Sopharma entered into an amendment to the Sopharma License Agreement. Among other things, the amendment to the Sopharma License Agreement reduced the royalty payments payable by us to Sopharma from a percentage in the mid-teens to a percentage in the mid-single digits and extended the term of the Sopharma License Agreement until May 26, 2029.

On July 28, 2017, we and Sopharma entered into the amended and restated Sopharma Supply Agreement. Pursuant to the amended and restated Sopharma Supply Agreement, for territories as detailed in the licensing agreement, we will exclusively purchase all of our cytisinicline from Sopharma, and Sopharma agrees to exclusively supply all such cytisinicline requested by us, and we extended the term to 2037. In addition, we will have full access to the cytisinicline supply chain and Sopharma will manufacture sufficient cytisinicline to meet a forecast for a specified demand of cytisinicline for the five years commencing shortly after the commencement of the agreement, with the forecast to be updated regularly thereafter. Each of us and Sopharma may terminate the Sopharma Supply Agreement in the event of the other party’s material breach or bankruptcy or insolvency.

Share Purchase Agreement

14

On May 14, 2015, we entered into a Share Purchase Agreement with Sopharma to acquire 75% of the outstanding shares of Extab Corporation for $2.0 million in cash and $2.0 million in a deferred payment, contingent on regulatory approval of cytisinicline by the FDA or the European Medicines Agency. The fair value of the contingent consideration on the acquisition date was nil. The contingent consideration liability is measured at fair value in our financial statements (see Note 2 “Significant Accounting Policies, Sopharma Share Purchase Agreement Contingent Consideration“ in the accompanying consolidated Financial Statements).

University of Bristol

In July 2016, we entered into a license agreement with the University of Bristol, or the University of Bristol License Agreement. Under the University of Bristol License Agreement, we received exclusive and nonexclusive licenses from the University of Bristol to certain patent and technology rights resulting from research activities into cytisinicline and its derivatives for use in smoking cessation, including a number of patent applications related to novel approaches to cytisinicline binding at the nicotinic receptor level. Any patents issued in connection with these applications would be scheduled to expire on February 5, 2036, at the earliest.

In consideration of rights granted by the University of Bristol, we agreed to pay amounts of up to $3.2 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones resulting from activities covered by the University of Bristol License Agreement. Additionally, if we successfully commercialize product candidates subject to the University of Bristol License Agreement, we are responsible for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products.

On January 22, 2018, we and the University of Bristol entered into an amendment to the University of Bristol License Agreement. Pursuant to the amended University of Bristol License Agreement, we received exclusive rights for all human medicinal uses of cytisinicline across all therapeutic categories from the University of Bristol from research activities into cytisinicline and its derivatives. In consideration of rights granted by the amended University of Bristol License Agreement, we agreed to pay an initial amount of $37,500 upon the execution of the amended University of Bristol License Agreement, and additional amounts of up to $1.7 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones resulting from activities covered by the amended University of Bristol License Agreement, in addition to amounts under the original University of Bristol License Agreement of up to $3.2 million in the aggregate, tied to specific financing, development and commercialization milestones. Additionally, if we successfully commercialize any product candidate subject to the amended University of Bristol License Agreement or to the original University of Bristol License Agreement, we will be responsible, as provided in the original University of Bristol License Agreement, for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products. Up to December 31, 2024, we had paid the University of Bristol $125,000 pursuant to the University of Bristol License Agreement.

Unless otherwise terminated, the University of Bristol License Agreement will continue until the earlier of July 2036 or the expiration of the last patent claim subject to the University of Bristol License Agreement. We may terminate the University of Bristol License Agreement for convenience upon a specified number of days’ prior notice to the University of Bristol. The University of Bristol License Agreement will terminate under customary termination provisions including bankruptcy or insolvency or its material breach of the agreement. Under the terms of the University of Bristol License Agreement, we had provided 100 grams of cytisinicline to the University of Bristol as an initial contribution.

Summary of Milestone and Contingent Obligations by Product Candidate

The following table sets forth the milestones and contingent obligations that we may be required to pay to third parties under the license and share purchase agreements described above. As described above, we will also be required to pay certain revenue-based royalties with respect to our product candidate.

Milestone Obligations to Third Parties	Amount Payable
University of Bristol	Up to $4,837,500(1)
Sopharma AD	$2,000,000(2)

(1)Payable in connection with specific financing, development and commercialization milestones.

(2)Payable contingent on regulatory approval by the FDA or EMA.

GOVERNMENT REGULATIONS

We are heavily regulated in most of the countries in which we operate. In the United States, the principal regulating authority is the FDA. The FDA regulates the safety and efficacy of product candidates and research, quality, manufacturing processes, product approval and promotion, advertising and product labeling. In the EU, the EMA and national regulatory agencies regulate the scientific

15

evaluation, supervision and safety monitoring of product candidates, and oversee the procedures for approval of drugs for the EU and European Economic Area, or EEA, countries similar regulations exist in most other countries, and in many countries the government also regulates prices. Health authorities in many middle- and lower-income countries require marketing approval by a recognized regulatory authority, such as the FDA or EMA, before they begin to conduct their application review process and/or issue their final approval.

United States

It is anticipated that cytisinicline tablets could receive up to seven and a half years of data exclusivity under the Drug Price Competition and Patent Term Restoration Act, also known as the Hatch-Waxman Act.

Before a new pharmaceutical product may be marketed in the United States, the FDA must approve an NDA for a new drug. The steps required before the FDA will approve an NDA generally include non-clinical studies followed by multiple stages of clinical trials conducted by the trial sponsor; sponsor submission of the NDA to the FDA for review; the FDA’s review of the data to assess the drug’s safety and effectiveness; and the FDA’s inspection of the facilities where the product will be manufactured.

As a condition of product approval, the FDA may require a sponsor to conduct post-marketing clinical trials, known as Phase 4 trials, and surveillance programs to monitor the effect of the approved product. The FDA may limit further marketing of a product based on the results of these post-market trials and programs. Any modifications to a drug, including new indications or changes to labeling or manufacturing processes or facilities, may require the submission and approval of a new or supplemental NDA before the modification can be implemented, which may require that we generate additional data or conduct additional non-clinical studies and clinical trials. Our ongoing manufacture and distribution of drugs is subject to continuing regulation by the FDA, including recordkeeping requirements, reporting of adverse experiences associated with the product, and adherence to current Good Manufacturing Practices, or cGMPs, which regulate all aspects of the manufacturing process. We are also subject to numerous regulatory requirements relating to the advertising and promotion of drugs, including, but not limited to, standards and regulations for direct-to-consumer advertising. Failure to comply with the applicable regulatory requirements governing the manufacture and marketing of our products may subject us to administrative or judicial sanctions, including warning letters, product recalls or seizures, injunctions, fines, civil penalties and/or criminal prosecution.

Sales and Marketing. The marketing practices of U.S. pharmaceutical companies are generally subject to various federal and state healthcare laws that are intended to prevent fraud and abuse in the healthcare industry and protect the integrity of government healthcare programs. These laws include anti-kickback laws and false claims laws. Anti-kickback laws generally prohibit a biopharmaceutical or medical device company from soliciting, offering, receiving or paying any remuneration to generate business, including the purchase or prescription of a particular product. False claims laws generally prohibit anyone from knowingly and willingly presenting, or causing to be presented, any claims for payment for reimbursed drugs or services to third-party payors (including Medicare and Medicaid) that are false or fraudulent. Although the specific provisions of these laws vary, their scope is generally broad and there may not be regulations, guidance or court decisions that apply the laws to any particular industry practices, including the marketing practices of pharmaceutical and medical device companies. Violations of fraud and abuse laws may be punishable by criminal or civil sanctions and/or exclusion from federal healthcare programs (including Medicare and Medicaid). The U.S. federal government and various states have also enacted laws to regulate the sales and marketing practices of pharmaceutical or medical device companies. These laws and regulations generally limit financial interactions between manufacturers and healthcare providers; require disclosure to the federal or state government and public of such interactions; and/or require the adoption of compliance standards or programs. Many of these laws and regulations contain ambiguous requirements or require administrative guidance for implementation. Given the lack of clarity in laws and their implementation, our activities could be subject to penalties under the pertinent laws and regulations.

Healthcare Reform. The United States and state governments continue to propose and pass legislation designed to regulate the healthcare industry. In March 2020, the Patient Protection and Affordable Care Act, or ACA, as amended by the Healthcare and Education Reconciliation Act, or collectively, the Healthcare Reform Law, was passed and included changes that significantly affected the pharmaceutical industry, such as:

•Increasing drug rebates paid to state Medicaid programs under the Medicaid Drug Rebate Program for brand name and generic prescription drugs and extending those rebates to Medicaid managed care;

•Requiring pharmaceutical manufacturers to provide discounts on brand name prescription drugs sold to Medicare beneficiaries whose prescription drug costs cause the beneficiaries to be subject to the Medicare Part D coverage gap; and

•Imposing an annual fee on manufacturers and importers of brand name prescription drugs reimbursed under certain government programs, including Medicare and Medicaid.

16

The ACA includes provisions designed to increase the number of Americans covered by health insurance. Specifically, since 2014, the ACA has required most individuals to maintain health insurance coverage or potentially to pay a penalty for noncompliance and has offered states the option of expanding Medicaid coverage to additional individuals. Additionally, policy efforts designed specifically to reduce patient out-of-pocket costs for medicines could result in new mandatory rebates and discounts or other pricing restrictions. Adoption of other new legislation at the federal or state level could further affect demand for, or pricing of, our products.

Pricing and Reimbursement. Pricing for our pharmaceutical products will depend in part on government regulation. We will likely be required to offer discounted pricing or rebates on purchases of pharmaceutical products under various federal and state healthcare programs, such as the Medicaid Drug Rebate Program, the “federal ceiling price” drug pricing program, the 340B drug pricing program and the Medicare Part D Program. We will also be required to report specific prices to government agencies under healthcare programs, such as the Medicaid Drug Rebate Program and Medicare Part B. The calculations necessary to determine the prices reported are complex and the failure to report prices accurately may expose us to penalties.

In the United States, Medicaid currently covers all smoking cessation products including varenicline and bupropion. The ACA substantially changes the way healthcare is financed by both governmental and private insurers, and significantly impacts the U.S. pharmaceutical industry. Section 2502 of the ACA specifies that tobacco cessation medications will be removed from the list of optional medications and required for inclusion in states’ prescription drug benefit. On May 2, 2014 the Department of Health and Human Services, or HHS, provided guidance into insurance coverage policy that health plans would be in compliance if they cover, among other items, screening for tobacco use, individual, group and phone counseling, all FDA approved tobacco cessation medications (both prescription and OTC) when prescribed by a healthcare provider, at least two quit attempts per year, four sessions of counseling and 90 days of treatment, with no cost sharing (co-pay) required.

Government and private third-party payers routinely seek to manage utilization and control the costs of our products. For example, private third-party payers and the majority of states use preferred drug lists to restrict access to certain pharmaceutical products under both of these types of payer types. Private third-party payers are constantly under healthcare budgetary constraints and utilize Pharmacy Benefit Managers to extract unit cost savings from drug manufacturers for formulary coverage. Given certain states’ current and potential ongoing fiscal crises, a growing number of states are considering a variety of cost-control strategies, including capitated managed care plans that typically contain cost by restricting access to certain treatments.

There have also been multiple recent U.S. congressional inquiries and proposed and adopted federal and state legislation designed to, among other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drugs and biologics. In addition, Congress and multiple presidential administrations have indicated that they will continue to seek new legislative and/or administrative measures to control drug costs. These initiatives recently culminated in the enactment of the Inflation Reduction Act, or the IRA, in August 2022, which will, among other things, allows HHS to negotiate the selling price of certain drugs and biologics that CMS reimburses under Medicare Part B and Part D, although only high-expenditure single-source drugs that have been approved for at least seven years (11 years for biologics) can be selected by CMS for negotiation, with the negotiated price taking effect two years after the selection year. The negotiated prices, which will first become effective in 2026, will be capped at a statutory ceiling price beginning in October 2023 and penalize drug manufacturers that increase prices of Medicare Part B and Part D drugs at a rate greater than the rate of inflation. The IRA permits the Secretary of HHS to implement many of these provisions through guidance, as opposed to regulation, for the initial years. Manufacturers that fail to comply with the IRA may be subject to various penalties, including civil monetary penalties. The IRA also extends enhanced subsidies for individuals purchasing health insurance coverage in ACA marketplaces through plan year 2025. These provisions will take effect progressively starting in 2023, although they may be subject to legal challenges. We anticipate that additional state and federal healthcare measures could be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced demand or lower pricing for cytisinicline, or additional pricing pressures.

Anti-Corruption. The Foreign Corrupt Practices Act of 1977, as amended, or FCPA, prohibits U.S. corporations and their representatives from offering, promising, authorizing or making payments to any foreign government official, government staff member, political party or political candidate in an attempt to obtain or retain business abroad. The scope of the FCPA includes interactions with certain healthcare professionals in many countries. Other countries have enacted similar anti-corruption laws and/or regulations. Individual states, acting through their attorneys general, have sought to regulate the marketing of prescription drugs under state consumer protection and false advertising laws.

Outside the United States

We expect to encounter similar regulatory and legislative issues in most other countries in which we seek to develop and commercialize cytisinicline.

17

New Drug Approvals and Pharmacovigilance. In the EU, the approval of new drugs may be achieved using the Mutual Recognition Procedure, the Decentralized Procedure or the EU Centralized Procedure. These procedures apply in the EU member states, plus the EEA countries, Norway, Iceland and Liechtenstein. The use of these procedures generally provides a more rapid and consistent approval process across the EU and EEA than was the case when the approval processes were operating independently within each country.

In 2012, new pharmacovigilance legislation came into force in the EU. Key changes included the establishment of a new Pharmacovigilance Risk Assessment Committee within the EMA, with responsibility for reviewing and making recommendations on product safety issues for the EU authorities. It also introduced the possibility for regulators to require pharmaceutical companies to conduct post-authorization efficacy studies at the time of approval, or at any time afterwards in light of scientific developments. There are also additional requirements regarding adverse drug reaction reporting and additional monitoring of products. Outside developed markets such as the EU and Japan, pharmacovigilance requirements vary and are typically less extensive.

Health authorities in many middle- and lower-income countries require marketing approval by a recognized regulatory authority (i.e., similar to the authority of the FDA or the EMA) before they begin to conduct their application review process and/or issue their final approval. Many authorities also require local clinical data in the country’s population in order to receive final marketing approval. These requirements delay marketing authorization in those countries relative to the United States and Europe.

CONTRACT RESEARCH AGREEMENTS

Our strategy is to outsource certain product development activities and have established contract research agreements for, non-clinical, clinical, manufacturing and some data management services. We choose which business or institution to use for these services based on their expertise, capacity and reputation and the cost of the service.

We also provide or have provided quantities of our product candidates to academic research institutions to investigate the mechanism of action. These collaborations expand our research activities for our product candidates with modest contributions from us.

MANUFACTURING

We do not own or operate manufacturing facilities for the production of cytisinicline, though we may develop our own manufacturing operations in the future. We currently partner with Sopharma as supplier and contract manufacturer for our required raw materials, active pharmaceutical ingredients and finished drug product for our clinical trials. In addition to our Sopharma relationship, we utilize contract manufacturing organizations for the clinical packaging supplies of cytisinicline and are in the process of contracting with additional contract manufacturing organizations for commercial drug supply. We currently employ internal resources and third-party consultants to manage our clinical manufacturing activities.

Sopharma sources cytisinicline from natural sources including trees and shrubs from the Faboideae subfamily of plant species. The seeds of cytisinicline containing plants are harvested annually, dried and processed into cytisinicline. The seeds in their natural state are highly toxic and the extraction process removes the toxins to produce highly purified cytisinicline. Sopharma controls a number of orchards throughout Bulgaria in addition to sourcing seeds and cytisinicline starting material from certain third-party suppliers. We expect to continue stockpiling cytisinicline to meet the projected demand upon commercial launch.

The active pharmaceutical ingredient, or API, manufacturing process utilizes a series of techniques including solvent extraction, recrystallization, filtration, and purification. Critical control steps and manufacturing intermediates have been identified and are controlled by internally developed specifications and methods to ensure a consistent and reproducible process. The highly purified cytisinicline is dried, sieved and packed for storage until further processing into drug product. The cytisinicline API manufacturing process has been developed and refined over many years of manufacture by Sopharma, which has significant expertise in manufacturing cytisinicline.

Sopharma manufactures cytisinicline API in its facilities in Bulgaria, which are near the capital, Sofia. The API processing facility complies with EU cGMP requirements and has been inspected by the Bulgarian Drug Agency. During 2022, Sopharma built a new API facility specifically for cytisinicline within its tableting plant in Sofia. Sopharma currently does not have FDA approval of its facilities in Bulgaria.

Raw materials are essential to our business and are normally available in quantities adequate to meet the needs of our business. Where there are exceptions, the temporary unavailability of those raw materials has not historically had a material adverse effect on our financial results however, uncertainties in supply chain, transportation logistics and costs, and political and economic conditions could result in disruptions in our operations and materially impact our financial results.

18

SALES AND MARKETING

Our commercial strategy may include the use of strategic partners, distributors, a contract sale force or the establishment of our own commercial marketing and sales infrastructure. We plan to further evaluate these alternatives including the potential to market and distribute directly to consumers via traditional and virtual channels. We intend to seek commercial partnerships in ex-U.S. territories.

INTELLECTUAL PROPERTY

The U.S. Supreme Court has held that certain claims to naturally occurring substances are not patentable. Cytisinicline is a naturally occurring product and, therefore, the compound itself is not patentable in the United States. Furthermore, cytisinicline has been used in other parts of the world for decades, creating further challenges to patenting uses of the compound.

Our development and commercialization of cytisinicline is protected by our exclusive supply agreement with Sopharma and Sopharma’s proprietary technology, experience and expertise in cytisinicline extraction. In addition, we intend to utilize market exclusivity laws including those under the Hatch-Waxman Act in the United States and exclusivity under Directive 2004/27/EC in the EU.

Additionally, we are actively building an intellectual property portfolio around our clinical-stage product candidate and research programs. A key component of this portfolio strategy is to seek international patent protection with patent applications in the United States and in major market countries that we consider important to the development of our business. As of December 31, 2024, we control a portfolio of patent families that are owned, co-owned and in-licensed. Those families cover cytisinicline dosing methods, cytisinicline derivatives, cytisinicline salts, methods of cytisinicline extraction, and cytisinicline formulations, among other inventions, in the United States and foreign jurisdictions. As of December 31, 2024, we owned, co-owned or in-licensed over 20 issued patents and over 50 pending patent applications. These patents and applications, if granted, have expiration dates ranging from 2037 to 2042, absent any term adjustments or extensions.

Our success depends in part on our ability to obtain and maintain proprietary protection for our product candidates and other discoveries, inventions, trade secrets and know-how that are critical to our business operations. Our success also depends in part on our ability to operate without infringing the proprietary rights of others, and in part, on our ability to prevent others from infringing our proprietary rights. A comprehensive discussion on risks relating to intellectual property is provided under “Risk Factors—Risks Related to Our Intellectual Property.”

In addition to patent protection, we rely on trade secrets, trademark protection and know-how to expand our proprietary position around our chemistry, technology and other discoveries and inventions that we consider important to our business. We also seek to protect our intellectual property in part by entering into confidentiality agreements with our employees, consultants, scientific advisors, clinical investigators and other contractors and also by requiring our employees, commercial contractors and certain consultants and investigators, to enter into invention assignment agreements that grant us ownership of any discoveries or inventions made by them.

COMPETITION

The development and commercialization of new products is highly competitive. We face competition from major pharmaceutical companies, specialty pharmaceutical companies, biotechnology companies, universities and other research institutions worldwide with respect to smoking cessation and other product candidates that they may seek to develop or commercialize in the future. We are aware that many companies have therapeutics marketed or in development for smoking cessation. We expect that our competitors and potential competitors have historically dedicated, and will continue to dedicate, significant resources to aggressively develop and commercialize their products in order to take advantage of the significant market opportunity.

Prescription and Over-the-Counter Treatments

Only two non-nicotine, prescription treatments for smoking cessation are currently available in the United States; “varenicline” (formerly marketed by Pfizer as Chantix) and “bupropion” (formerly marketed by GlaxoSmithKline as Zyban). Both are currently available as generic formulations. Varenicline requires a three-month treatment period and bupropion is recommended for a period between seven and 12 weeks. While both have been proven effective in aiding smoking cessation, they are also associated with significant side effects and early discontinuations from treatment. Varenicline’s labeling indicates elevated instances of nausea, abnormal dreams, constipation, flatulence, and vomiting may be experienced by varenicline-treated patients compared to placebo-treated patients, and bupropion’s product label discloses potential adverse reactions including insomnia, rhinitis, dry mouth, dizziness, nervous disturbance, anxiety, nausea, constipation, arthralgia and seizures. Both varenicline and buproprion have warning and

19

precautions for neuropsychiatric adverse events, including suicidal ideations. High uptake into the brain combined with activity at “off target” receptors could be responsible for varenicline’s adverse event profile.

The most common OTC treatments bought in pharmacies for smoking cessation in the United States and worldwide are NRTs such as nicotine gums, nicotine lozenges, and nicotine patches. Each of these products delivers nicotine to the body although they generally do so at different rates and to different parts of the body than does a traditional cigarette. As concluded by the authors of several published clinical trials conducted by others, these therapies are generally less effective than prescription treatments. Recognized brands include Niquitin, Nicotinell, Nicorette and Nicoderm. Depending on the duration of treatment, the average cost of certain OTC smoking cessation treatments can exceed prescription treatments.

Pharmaceutical companies, including larger companies in the industry, who have extensive expertise in non-clinical and clinical testing and in obtaining regulatory approvals for products, may develop other OTC treatments for smoking cessation. In addition, academic institutions, government agencies and other public and private organizations conducting research may seek patent protection with respect to potentially competitive products or technologies. These organizations may also establish exclusive collaborative or licensing relationships with our competitors.

HUMAN CAPITAL RESOURCES

As of December 31, 2024, we had a total of 25 employees, of whom fourteen were engaged in research and development functions, including clinical development, regulatory affairs and manufacturing, and eleven were engaged in general and administrative functions, including accounting and finance, administration, and commercial.

All of our employees have entered into non-disclosure agreements regarding our intellectual property, trade secrets and other confidential information. None of our employees are represented by a labor union or covered by a collective bargaining agreement, nor have we experienced any work stoppages. We believe that we maintain satisfactory relations with our employees.

From time to time, we also use outside consultants to provide advice on our clinical development plans, research programs, administration and potential acquisitions of new technologies.

We believe that our future success largely depends upon our continued ability to attract and retain highly skilled employees. We emphasize a number of measures and objectives in managing our human capital assets, including, among others, employee engagement, development, and training, talent acquisition and retention, and employee safety and wellness. We provide our employees with competitive salaries and bonuses, opportunities for equity ownership, development programs that enable continued learning and growth and a robust employment package that promotes well-being across all aspects of their lives, including health care, retirement planning and paid time off.

COMPANY INFORMATION

We were incorporated in California in October 1991 and subsequently reorganized as a Delaware corporation in March 1995. Our principal executive offices are located at 22722 29th Dr. SE Suite 100 Bothell, WA 98021 and 1040 West Georgia Street, Suite 1030, Vancouver, B.C. V6E 4H1, Canada and our telephone number is (604) 210-2217.

AVAILABLE INFORMATION

We maintain a website at http://www.achievelifesciences.com. The information contained on or accessible through our website is not part of this Annual Report on Form 10-K. Our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to reports filed or furnished pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended, or the Exchange Act, are available free of charge on our website as soon as reasonably practicable after we electronically file such reports with, or furnish those reports to, the SEC. The SEC also maintains an Internet site that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC at http://www.sec.gov.

ITEM 1A.

RISK FACTORS

Investing in our common stock involves a high degree of risk. You should carefully consider the risks and uncertainties described below, together with all of the other information contained in this Annual Report on Form 10-K and in the other periodic and current reports and other documents we file with the Securities and Exchange Commission, before deciding to invest in our common stock. If any of the following risks materialize, our business, financial condition, results of operation and future prospects will likely be

20

materially and adversely affected. In that event, the market price of our common stock could decline, and you could lose all or part of your investment. This list is not exhaustive, and the order of presentation does not reflect management's determination of priority or likelihood.

Risks Related to Our Financial Condition and Capital Requirements

Substantial doubt exists as to our ability to continue as a going concern. Our ability to continue as a going concern is subject to material uncertainty and dependent on our success at raising additional capital sufficient to meet our obligations on a timely basis. If we fail to obtain additional financing when needed, we may be unable to complete the development, regulatory approval and commercialization of our product candidate.

Substantial doubt exists as to our ability to continue as a going concern. Our ability to continue as a going concern is subject to material uncertainty and dependent on our ability to obtain additional financing. There is no assurance that we will obtain financing from other sources. The uncertainty with respect to our operations and the capital markets generally may make it more challenging to raise additional capital on favorable terms, if at all.

In addition, we expect to incur significant expenses and increasing operating losses for at least the next several years as we continue our clinical development of, seek regulatory approval for, and commercialize, cytisinicline and add personnel necessary to operate as a commercial-stage public company. We expect that our operating losses will fluctuate significantly from quarter to quarter and year to year due to timing of clinical development programs, efforts to achieve regulatory approval and commercialization.

Our current resources are insufficient to fund our planned operations for the next 12 months. We will continue to require substantial additional capital to continue our clinical development activities and expand our regulatory, manufacturing and commercialization activities. Accordingly, we will need to raise substantial additional capital from the sale of our securities, debt, partnering arrangements, non-dilutive fundraising or other financing transactions in order to continue to fund our operations and finance the remaining development and commercialization of our product candidate. The amount and timing of our future funding requirements will depend on many factors, including the pace and results of our clinical development, regulatory review and commercialization efforts.

The current financing environment in the United States, particularly for biotechnology companies like us, is challenging and we can provide no assurances as to when this will improve. Our business may be impacted by macroeconomic conditions, including fluctuating inflation, interest and tariff rates and market conditions as well as political events, war, terrorism, business interruptions and other geopolitical events and uncertainties beyond our control. These factors may make it challenging to raise additional capital on favorable terms, if at all. A severe or prolonged economic downturn could result in a variety of risks to our business, including in our ability to raise additional capital when needed on acceptable terms, if at all. A weak or declining economy also could strain our suppliers, possibly resulting in supply disruption. In addition, current macroeconomic conditions have caused uncertainty in various sectors, including capital markets. For these reasons, among others, we cannot be certain that additional financing will be available when and as needed or, if available, that it will be available on acceptable terms. If financing is available, it may be on terms that adversely affect the interests of our existing stockholders. If adequate financing is not available, we may need to reduce or eliminate our expenditures for research and development of cytisinicline, and may be required to suspend development of cytisinicline. Our actual capital requirements will depend on numerous factors, including:

•the progress and results of our research and development programs;

•the repayment or conversion of our outstanding debt;

•the time and cost involved in obtaining regulatory approvals for our product candidate;

•our commercialization activities and arrangements;

•the cost of filing, prosecuting, defending and enforcing any patent claims and other intellectual property rights with respect to our intellectual property;

•the effect of competing technological and market developments;

•the effect of changes and developments in our existing collaborative, licensing and other relationships;

•the effect of interest rate adjustments, which may impact the cost of our borrowing under our loan facility, which includes an adjustable-rate component; and

•the terms of any new collaborative, licensing, commercialization and other arrangements that we may establish.

21

We may not be able to secure sufficient financing on acceptable terms, or at all. Without additional funds, we may be forced to delay, scale back or eliminate some of our research and development activities or other operations and potentially delay product development in an effort to provide sufficient funds to continue our operations. If any of these events occur, our ability to achieve our development and commercialization goals would be adversely affected.

We have incurred substantial debt, which could impair our flexibility and access to capital and adversely affect our financial position, and our business would be materially adversely affected if we are unable to service our debt obligations.

As of December 31, 2024, the principal amounts due under our debt instruments (including the New Debt Agreement, as defined and further described under the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations”) totaled $10.0 million.

Servicing our debt requires a significant amount of cash. Our debt is subject to floating interest rates set in relation to the prime rate. Increases in interest rates have made and may continue to make our debt service costs increase. The New Convertible Term Loan (as defined and further described under the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations”) matures on December 1, 2027, subject to certain potential extensions. We currently do not generate any cash flow from operations and if we are unable to make interest and/or principal payments when due, we would be in default under the New Debt Agreement. We may be required to raise additional capital through future financings or sales of assets to enable us to make interest payments and/or repay our outstanding indebtedness as it becomes due. There can be no assurance that we will be able to generate cash or raise additional capital. Any debt financing that is available could cause us to incur substantial costs and subject us to covenants that significantly restrict our ability to conduct our business. If we seek to complete additional equity financings, the interests of existing stockholders may be diluted. If we are unable to service our loan, the lender may foreclose on and sell the assets securing such indebtedness to satisfy our payment obligations, which could prevent us from accessing those assets for our business and conducting our business as planned, which could materially harm our financial condition and results of operations.

Our obligations under the New Debt Agreement are secured by substantially all of our assets, other than intellectual property. If we are unable to make payment on our secured debt instruments when due, the lender under such instrument may foreclose on and sell the assets securing such indebtedness to satisfy our payment obligations, which could prevent us from accessing those assets for our business and conducting our business as planned, which could materially harm our financial condition and results of operations. Further, if we are liquidated, the rights of the Lender to repayment would be senior to the rights of the holders of our common stock to receive any proceeds from the liquidation. The Lender could declare a default under the New Debt Agreement upon the occurrence of any event that the Lender interprets as a material adverse change as defined under the New Debt Agreement, thereby requiring us to repay the loan immediately or to attempt to reverse the declaration of default through negotiation or litigation. Any declaration by the Lender of an event of default could significantly harm our business, financial condition, results of operations and prospects and could cause the price of our common stock to decline. If we raise any additional debt financing, the terms of such additional debt could further restrict our operating and financial flexibility.

Further, the New Debt Agreement contains customary affirmative and restrictive covenants, including covenants regarding the incurrence of additional indebtedness or liens, investments, transactions with affiliates, delivery of financial statements, payment of taxes, maintenance of insurance, dispositions of property, mergers or acquisitions, and the requirement we keep substantially all of our cash and investments with SVB, among other customary covenants. We are also restricted from paying dividends or making other distributions or payments on capital stock, subject to limited exceptions. The New Debt Agreement includes customary representations and warranties, events of default and termination provisions.

Our existing and any future indebtedness may limit our cash resources available to invest in the ongoing needs of our business

 

Our outstanding debt combined with our other financial obligations and contractual commitments could have significant adverse consequences, including:

•reducing cash resources available to fund working capital, capital expenditures, product development efforts and other general corporate purposes;

•increasing our vulnerability to adverse changes in general economic, industry and market conditions;  

•subjecting us to restrictive covenants that may reduce our ability to take certain corporate actions or obtain further debt or equity financing;

•limiting our flexibility in planning for, or reacting to, changes in our business and our industry; and  

•placing us at a competitive disadvantage compared to our competitors that have less debt or better debt servicing options.

22

We intend to satisfy our current and future debt service obligations with our existing cash and funds from external sources. Nonetheless, we may not have sufficient funds or may be unable to arrange for additional financing to pay the amounts due under our existing or any future debt facility. Funds from external sources may not be available on acceptable terms, if at all.

We have incurred losses since inception, have a limited operating history on which to assess our business and anticipate that we will continue to incur losses for the foreseeable future.

We are a late-stage clinical specialty pharmaceutical company with a limited operating history, are not profitable, have incurred losses in each year since our inception and expect to continue incurring losses for the foreseeable future.

Pharmaceutical product development is a highly speculative undertaking and involves a substantial degree of risk. We have devoted substantially all of our financial resources to developing our cytisinicline product candidate and supporting our operations. To date, we have funded the company primarily through the sale of equity securities and convertible promissory notes.

We expect to continue to incur significant expenses and increasing operating losses for the foreseeable future. We further expect that our expenses will increase substantially if and as we:

•continue the clinical development of cytisinicline;

•establish a sales, marketing, and distribution infrastructure to commercialize cytisinicline;

•seek to attract and retain skilled personnel;

•undertake the manufacturing of cytisinicline or increase volumes manufactured by third parties;

•seek regulatory approvals and reimbursement for cytisinicline;

•experience delays in the development of our cytisinicline candidate, including delays in clinical trials and delays in regulatory review;

•initiate additional non-clinical, clinical, or other trials or studies for cytisinicline;

•make milestone, royalty or other payments under third-party license and/or supply agreements;

•seek to establish, maintain, protect, and expand our intellectual property portfolio;

•seek to discover, identify, assess, acquire, and/or develop other product candidates;

•encounter safety concerns; or

•require additional studies to support regulatory approval and commercialization.

Further, the net losses we incur may fluctuate significantly from quarter to quarter and year to year, such that a period-to-period comparison of our results of operations may not be a good indication of our future performance.

We have never generated any revenue from product sales and may never be profitable.

We have no products approved for commercialization and have never generated any revenue from product sales. Our ability to generate revenue and achieve profitability depends on our ability, alone or with strategic collaborators, to successfully complete the development of, and obtain the regulatory approvals necessary to commercialize cytisinicline. We do not anticipate generating revenue from product sales for the foreseeable future. Our ability to generate future revenue from product sales depends heavily on our success in many areas, including but not limited to:

•completing research and development of cytisinicline;

•obtaining regulatory approvals for cytisinicline;

•manufacturing product and establishing and maintaining supply and manufacturing relationships with third parties that are commercially feasible, satisfy regulatory requirements and meet our supply needs in sufficient quantities to satisfy market demand for cytisinicline, if approved;

•marketing, launching and commercializing any product for which we obtain regulatory approval, either directly or with a collaborator or distributor;

•obtaining reimbursement or pricing for cytisinicline that supports profitability;

23

•gaining market acceptance of cytisinicline as a treatment option;

•addressing any competing or alternative products, including the potential for generic cytisinicline products;

•protecting and enforcing our intellectual property rights, if any, including patents, trade secrets, and know-how;

•negotiating favorable terms in any collaboration, licensing, commercialization, or other arrangements into which we may enter; and

•attracting, hiring, and retaining qualified personnel.

Even if a product candidate that we develop is approved for commercial sale, we anticipate incurring significant costs associated with commercializing that candidate. Additionally, if we are not able to generate sufficient revenue from the sale of any approved products to cover our operating costs, we may never become profitable. If we obtain regulatory approval to market a product candidate, our future revenue will depend upon the size of any markets in which our product candidate may receive approval, and our ability to achieve sufficient market acceptance, pricing, reimbursement from third-party payors, and adequate market share for our product candidate in those markets.

Our cash and cash equivalents could be adversely affected if the financial institutions in which we hold our cash and cash equivalents fail.

We regularly maintain cash balances at third-party financial institutions, including with Silicon Valley Bank, or SVB, both in the United States and internationally, in excess of the FDIC insurance limit and similar regulatory insurance limits outside the United States. Further, if we enter into a credit, loan or other similar facility with a financial institution, certain covenants included in such facility may require as security that we keep a significant portion of our cash with the institution providing such facility. If a depository institution where we maintain deposits fails or is subject to adverse conditions in the financial or credit markets, we may not be able to recover all, if any, of our deposits which could adversely impact our operating liquidity and financial performance.

Under the terms of the New Debt Agreement, we are required to keep substantially all of our cash and investments with SVB. In March 2023, SVB was closed by the California Department of Financial Protection and Innovation, which also appointed the FDIC as receiver. Within days, the FDIC assisted depositors of the bank access funds and we were able to regain full access to our cash and cash equivalents with SVB. In May 2023, First Citizens assumed all of SVB’s deposits and loans. While our deposits are backed by the FDIC, that support may not last or be honored in the future and we could be materially impacted.

Risks Related to the Development of Our Product Candidate Cytisinicline

Cytisinicline is currently our sole product candidate and there is no guarantee that we will be able to successfully develop and commercialize cytisinicline.

We are currently dependent on the potential development of a single product candidate, cytisinicline. We are still developing cytisinicline and it cannot be marketed or sold in the United States or in foreign markets until regulatory approval has been obtained from the FDA or applicable foreign regulatory agencies. The process of obtaining regulatory approval is expensive and time consuming. The FDA and foreign regulatory authorities may never approve cytisinicline for sale and marketing, and even if cytisinicline is ultimately approved, regulatory approval may be delayed or limited in the United States or in other jurisdictions. Even if we are authorized to sell and market cytisinicline in one or more markets, there can be no assurance that we will be able to successfully market cytisinicline or that cytisinicline will achieve market acceptance sufficient to generate profits. If we are unable to successfully develop and commercialize cytisinicline due to failure to obtain regulatory approval for cytisinicline, to successfully market cytisinicline, to generate profits from the sale of cytisinicline, or due to other risk factors outlined in this report, it would have material adverse effects on our business, financial condition.

We are dependent upon a single company for the manufacture and supply of cytisinicline.

Our single product candidate, cytisinicline, has been in-licensed from a third party, Sopharma AD, or Sopharma, a Bulgarian third-party supplier. Pursuant to a supply agreement with Sopharma, Sopharma is currently the exclusive supplier of cytisinicline and cytisinicline active pharmaceutical ingredients (API). We plan to engage other third parties for our manufacturing process, including, if cytisinicline is approved, to manufacture cytisinicline on a commercial scale, with tableting, blistering and packaging. Our current supply agreement with Sopharma expires on July 28, 2037, unless extended by agreement between us and Sopharma.

Sopharma currently manufactures all of its cytisinicline API in its facilities in Bulgaria. The conflict in Ukraine, including the possibility of expanded regional or global conflict and related economic sanctions, may have negative impacts on Sopharma’s business, which could cause them to reduce or terminate investments in the cytisinicline program. If the supply agreement with

24

Sopharma is terminated or if Sopharma is otherwise unable to meet its obligations under the supply agreement, we will need to secure alternative supply and manufacturing capabilities for cytisinicline and/or cytisinicline API, which we may not be able to do on commercially viable terms or at all and would likely delay development, regulatory approval and commercialization.

The development and commercialization of our product candidate is dependent upon securing sufficient quantities of cytisinicline from trees and other plants, which grow outside of the United States in a limited number of locations.

The therapeutic component of our product candidate, cytisinicline, is derived from the seeds of trees and shrubs from the Faboideae subfamily of plant species, which grow in the mountains of Southern Europe and other limited locations around the world. We have and will continue to pursue alternative sources for cytisinicline, including synthetic routes, however, all of the cytisinicline sourced to date for our product candidate has been from natural sources and there is no guarantee that any potential synthetic route developed will be commercially viable. We currently secure cytisinicline exclusively from Sopharma. There can be no assurances that trees and shrubs from the Faboideae subfamily of plant species will continue to grow in sufficient quantities around the world to meet our forecasts or commercial supply requirements or that the countries from which we can secure them will continue to allow the exportation of cytisinicline.

We plan to submit an NDA to the FDA for the marketing approval of cytisinicline as a drug therapy in treating nicotine dependence for smoking cessation, based largely on data from our completed Phase 3 ORCA-2 and ORCA-3 clinical trials and the ongoing ORCA-OL trial; however, there can be no assurance that the data from our clinical trials will ultimately support an NDA filing or that the FDA will grant marketing approval of cytisinicline without additional clinical or nonclinical studies, or at all.

Drug product candidates must demonstrate substantial evidence of effectiveness, as well as safety to be approved in the United States. The FDA has interpreted that statutory standard as generally requiring at least two adequate and well-controlled clinical trials, each convincing on its own, to establish effectiveness and a safety profile. Under certain circumstances the FDA will determine that data from one adequate and well-controlled clinical trial together with confirmatory evidence obtained prior to or after such clinical trial are sufficient to constitute substantial evidence of effectiveness.

Cytisinicline is a naturally occurring, plant-based alkaloid. Cytisinicline is structurally similar to nicotine and has a well-defined, dual-acting mechanism of action that is both agonistic and antagonistic. It is believed to aid in smoking cessation and the treatment of nicotine dependence by interacting with nicotine receptors in the brain, reducing the severity of nicotine withdrawal symptoms through agonistic effects on nicotine receptors and reducing the reward and satisfaction associated with nicotine through antagonistic properties. Cytisinicline has been studied in two company-sponsored randomized, multicenter, double-blind, placebo-controlled Phase 3 clinical studies that randomized a total of 1,602 adult smokers in 37 study sites across the United States.

The FDA has advised us that long-term exposure data to assess for safety beyond 12 weeks will be needed to adequately assess safety risks given that the FDA views smoking cessation drugs as products for chronic, repeated, and intermittent use as patients may relapse and require subsequent courses of treatment over a lifetime. In the first quarter of 2024, we reached agreement with the FDA that a single, open-label study, which we refer to as ORCA-OL, evaluating the long-term safety effects of cytisinicline will be sufficient to complete the requirement and enable an NDA submission. We initiated the ORCA-OL trial in May 2024 and in October 2024 we announced the completion of enrollment of 479 subjects. In January 2025, we announced that the ORCA-OL trial had reached the goal of at least 300 subjects completing six months of cumulative cytisinicline exposure. However, regardless of these discussions and the results of the ORCA-OL open label study, the FDA may determine that:

•the existing data, and the data from the ORCA-OL open label study, may not be sufficient and the FDA may require additional clinical and/or nonclinical studies prior to filing an NDA or prior to approval of cytisinicline for treating nicotine dependence for smoking cessation in adults;

•the population studied in the clinical program may not be sufficiently broad or representative to assure safety in the full population for which we seek approval;

•the product candidate's risk-benefit assessments may not be acceptable for the proposed indication;

•the data collected from clinical trials of our product candidate may not be sufficient to support the submission of an application for marketing authorization; and

•third-parties' manufacturing processes or facilities with which we contract for clinical and commercial supplies may not meet the standards required for approval.

Failure to obtain regulatory approval to market our product candidate would significantly harm our business, results of operations, and prospects.

25

Results of earlier clinical trials of cytisinicline are not necessarily predictive of future results, and any advances of cytisinicline into clinical trials may not have favorable results or receive regulatory approval.

Even if our clinical trials are completed as planned, we cannot be certain that their results will be consistent with the results of the earlier clinical trials of cytisinicline. Positive results in non-clinical testing and past clinical trials with respect to the safety and efficacy of cytisinicline do not ensure that results from subsequent clinical trials will also be positive, and we cannot be sure that the results of subsequent clinical trials will replicate the results of prior clinical trials and non-clinical testing. Any such failure may cause us to abandon cytisinicline, which would negatively affect our ability to generate any product revenues.

Clinical trials, including the ongoing ORCA-OL trial, are costly, time consuming and inherently risky, and we may fail to demonstrate safety and efficacy to the satisfaction of applicable regulatory authorities. Any advances of cytisinicline into clinical trials may not have favorable results or receive regulatory approval.

Clinical development is expensive, time consuming and involves significant risk. We cannot guarantee that any clinical trial, including the ongoing ORCA-OL trial, will be conducted as planned or completed on schedule, if at all. Events that may prevent successful or timely completion of the ongoing ORCA-OL trial, but are not limited to:

•subjects terminating enrollment in the ORCA-OL trial;

•failure by clinical sites, CROs or other third parties to adhere to clinical trial requirements;

•failure by clinical sites, CROs or other third parties to perform in accordance with the good clinical practices requirements of the FDA or applicable foreign regulatory guidelines;

•disruptions to our supply chain for the cytisinicline required for the ORCA-OL trial;

•the occurrence of previously unknown on unobserved adverse events or tolerability issues associated with our product candidate, including those significant enough to stop the trial or for the FDA or other regulatory agencies to put the ORCA-OL trial on hold;

•the cost of the ORCA-OL trial;

•negative or inconclusive results from the ORCA-OL trial, which may result in us deciding, or regulators requiring us, to conduct further additional clinical trials or abandon development programs in ongoing or other planned indications for cytisinicline;

•discovery of impurities in our cytisinicline drug product, such as nitrosamines, above the regulators’ prescribed thresholds; and

•delays in the manufacture or packaging of sufficient quantities of cytisinicline for use the ORCA-OL trial.

Any inability to successfully complete clinical development and obtain regulatory approval for cytisinicline could result in additional costs to us or impair our ability to generate revenue. In addition, if we make manufacturing or formulation changes to cytisinicline, we may need to conduct additional non-clinical trials, or the results obtained from such new formulation may not be consistent with previous results obtained. Clinical trial delays could result in delayed regulatory approval and potential commercialization, as well as shorten any periods during which our products have patent protection and may allow competitors to develop and bring products to market before we do, which could impair our ability to successfully commercialize cytisinicline and may harm our business and results of operations.

Further, even if the ORCA-OL trial is completed as planned, we cannot be certain that its long-term safety results will be consistent with the results of the earlier clinical trials of cytisinicline or support an NDA filing. Positive results in non-clinical testing and past clinical trials with respect to the adequate safety and efficacy of cytisinicline do not ensure that results from subsequent clinical trials will also be positive or adequate, and we cannot be sure that the results of subsequent clinical trials will replicate the results of prior clinical trials and non-clinical testing. Any such failure may cause us to abandon cytisinicline, which would negatively affect our ability to conduct our business and generate any product revenues and result in a loss of company value.

Cytisinicline may cause undesirable side effects or have other properties that could delay or prevent regulatory approval, limit the commercial viability of an approved label, or result in significant negative consequences following marketing approval, if any.

Undesirable side effects caused by cytisinicline could cause us or regulatory authorities to interrupt, delay, or terminate clinical trials. Even if approved, these could result in a restrictive label, a shelf life that is not commercially viable or delay regulatory approval by the FDA or comparable foreign authorities.

26

If contaminants, or impurities such as nitrosamines, are discovered in quantities above regulators’ thresholds within our supply of cytisinicline, we may potentially delay product development and approval or have a material adverse impact on our business. Failure to reach agreement with the FDA on acceptable intake levels for impurities, such as nitrosamines, or exceeding agreed upon levels could delay or prevent regulatory approval.

Additionally, even if cytisinicline receives marketing approval and we or others later identify undesirable side effects caused by cytisinicline, potentially significant negative consequences could result, including but not limited to:

•regulatory authorities may withdraw approvals of cytisinicline;

•regulatory authorities may require additional warnings on the cytisinicline label;

•we may be required to create a Risk Evaluation and Mitigation Strategy, or REMS, plan, which could include a medication guide outlining the risks of such side effects for distribution to patients, a communication plan for healthcare providers, and/or other elements to assure safe use;

•we could be subject to product liability claims for harm caused to patients; and

•our reputation may suffer.

Any of these events could prevent us from achieving or maintaining market acceptance of cytisinicline, even if approved, and could significantly harm our business, results of operations, and prospects.

Our product development program may not uncover all possible adverse events that patients who take cytisinicline or our other product candidates may experience. The number of subjects exposed to cytisinicline or our other product candidates and the average exposure time in the clinical development program may be inadequate to detect rare adverse events, or chance findings, that may only be detected once the product is administered to more patients and for greater periods of time.

Clinical trials by their nature utilize a sample of the potential patient population. We cannot be fully assured that any and all rare and severe side effects of cytisinicline will be uncovered. Such rare and severe side effects may only be uncovered with a significantly larger number of patients exposed to cytisinicline or over a significantly longer period of time. If such safety problems occur or are identified after cytisinicline reaches the market in the United States, or if such safety problems occur or are identified in foreign markets where cytisinicline is currently marketed, the FDA may require that we amend the labeling of cytisinicline or recall it, or may even withdraw approval for cytisinicline.

If the use or misuse of cytisinicline harms patients, or is perceived to harm patients even when such harm is unrelated to cytisinicline, our regulatory approvals, if any, could be revoked or otherwise negatively impacted and we could be subject to costly and damaging product liability claims. If we are unable to obtain adequate insurance or are required to pay for liabilities resulting from a claim excluded from, or beyond the limits of, our insurance coverage, a material liability claim could adversely affect our financial condition.

The use or misuse of cytisinicline in clinical trials and the sale of cytisinicline if marketing approval is obtained, exposes us to the risk of potential product liability claims. Product liability claims might be brought against us by consumers, healthcare providers, pharmaceutical companies or others selling or otherwise coming into contact with our product. There is a risk that cytisinicline may induce adverse events. If we cannot successfully defend against product liability claims, we could incur substantial liability and costs.

In addition, during the course of treatment, patients may suffer adverse events for reasons that may be related to cytisinicline. Such events could subject us to costly litigation, require us to pay substantial amounts of money to injured patients, delay, negatively impact or end our opportunity to receive or maintain regulatory approval to market cytisinicline, if any, or require us to suspend or abandon our commercialization efforts. Even in a circumstance in which an adverse event is unrelated to cytisinicline, an investigation into such circumstance may be time-consuming or inconclusive. Such investigations may delay our regulatory approval process or impact and limit the type of regulatory approvals cytisinicline receives or maintains. As a result, a product liability claim, even if successfully defended, could have a material adverse effect on our business, financial condition or results of operations and reputation.

If we obtain marketing approval for cytisinicline, we will need to expand our insurance coverage to include the sale of commercial products. We cannot know if we will be able to continue to obtain product liability coverage and obtain expanded coverage if we require it in sufficient amounts to protect us against losses due to liability, on acceptable terms, or at all. We may not have sufficient resources to pay for any liabilities resulting from a claim excluded from, or beyond the limits of, our insurance coverage.

Where we have provided indemnities in favor of third parties under our agreements with them, there is a risk that these third parties could incur liability and bring a claim under such indemnities. An individual may also bring a product liability claim against us alleging that cytisinicline causes, or is claimed to have caused, an injury or is found to be unsuitable for consumer use. Any such

27

product liability claims may include allegations of defects in manufacturing, defects in design, a failure to warn of dangers inherent in the product, negligence, strict liability, and a breach of warranties. Claims could also be asserted under state consumer protection acts.

Any product liability claim brought against us, with or without merit, could result in:

•withdrawal of clinical trial volunteers, investigators, patients or trial sites or limitations on approved indications;

•an inability to commercialize, or if commercialized, a decreased demand for, cytisinicline;

•if commercialized, product recalls, withdrawals of labeling, marketing or promotional restrictions or the need for product modification;

•initiation of investigations by regulators;

•loss of revenue, if any;

•substantial costs of litigation, including monetary awards to patients or other claimants;

•liabilities that substantially exceed our product liability insurance, which we would then be required to pay ourselves;

•increased product liability insurance rates, or inability to maintain insurance coverage in the future on acceptable terms, if at all;

•diversion of management’s attention from our business; and

•damage to our reputation and the reputation of our products and our technology.

Product liability claims may subject us to the foregoing and other risks, which could have a material adverse effect on our business, financial condition or results of operations.

Our business may be negatively affected by weather conditions, natural disasters, and the availability of natural resources, as well as by climate change.

In recent years, extreme weather events and changing weather patterns such as storms, flooding, drought, and temperature changes appear to have become more common. The production of cytisinicline from the Faboideae subfamily of plant species depends on the availability of natural resources, including sufficient rainfall. Sopharma, our supplier of cytisinicline, could be adversely affected if it experiences a shortage of fresh water due to droughts or if it experiences other adverse weather conditions in the locations where cytisinicline is sourced. The long-term effects of climate change on general economic conditions and the pharmaceutical industry in particular are unclear and may heighten or intensify existing risk of natural disasters. As a result of such events, we could experience cytisinicline shortages, which could have a material adverse effect on our business, financial condition and results of operations.

In addition, the manufacturing and other operations of Sopharma are located near earthquake fault lines in Sofia, Bulgaria. In the event of a major earthquake, we could experience business interruptions from the disruption of our cytisinicline supplies, which could have a material adverse effect on our business, financial condition and results of operations.

We conduct clinical trials internationally, which may trigger additional risks.

Conducting clinical trials in Europe or other countries outside of the United States has additional regulatory requirements that we have to meet in connection with our manufacturing, distribution, use of data and other matters. Failure to meet such regulatory requirements could delay our clinical trials, the approval, if any, of cytisinicline by the FDA or other regulatory authorities, or the commercialization of cytisinicline, or result in higher costs or deprive us of potential product revenues. For example, we have recently conducted clinical trials in Spain and Portugal and are subject to the local regulatory requirements of such jurisdictions.

We may use our financial and human resources to pursue a particular research program or product candidate and fail to capitalize on programs or product candidates that may be more profitable or for which there is a greater likelihood of success.

Because we have limited financial and human resources, we may forego or delay pursuit of opportunities with some programs or product candidates or for other indications that later prove to have greater commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial products or more profitable market opportunities. Our spending on current and future research and development programs and future product candidates for specific indications may not yield any commercially viable products. We may also enter into additional strategic collaboration agreements to develop and commercialize some of our programs and potential product candidates in indications with potentially large commercial markets. If we do not accurately evaluate the commercial potential or target market for a particular product candidate, we may relinquish valuable rights to that product

28

candidate through strategic collaborations, licensing or other royalty arrangements in cases in which it would have been more advantageous for us to retain sole development and commercialization rights to such product candidate, or we may allocate internal resources to a product candidate in a therapeutic area in which it would have been more advantageous to enter into a partnering arrangement.

Risks Related to Regulatory Approval of Cytisinicline and Other Legal Compliance Matters

If we do not obtain the necessary regulatory approvals in the United States and/or other countries, we will not be able to sell cytisinicline.

We will need approval from the FDA to commercialize cytisinicline in the United States and approvals from similar regulatory authorities in foreign jurisdictions to commercialize cytisinicline in those jurisdictions. In order to obtain FDA approval of cytisinicline, we must submit an NDA to the FDA, demonstrating that cytisinicline is safe, pure and potent, and effective for its intended use. This demonstration requires significant research including completion of clinical trials. Satisfaction of the FDA’s regulatory requirements typically takes many years, depending upon the type, complexity and novelty of the product candidate and requires substantial resources for research, development and testing. We cannot predict whether our clinical trials will demonstrate the safety and efficacy of cytisinicline or if the results of any clinical trials will be sufficient to advance to the next phase of development or for approval from the FDA. We also cannot predict whether our research and clinical approaches will result in data that the FDA considers safe and effective for the proposed indications of cytisinicline. The FDA has substantial discretion in the product approval process. The approval process may be delayed by changes in government regulation, future legislation or administrative action or changes in FDA policy that occur prior to or during our regulatory review. Even if we comply with all FDA requests, the FDA may ultimately reject one or more of our applications. We may never obtain regulatory approval for cytisinicline. Failure to obtain approval from the FDA or comparable regulatory authorities in foreign jurisdictions to commercialize cytisinicline will leave us without saleable products and therefore without any source of revenues. In addition, the FDA may require us to conduct additional clinical testing or to perform post-marketing studies, as a condition to granting marketing approval of a product or permit continued marketing, if previously approved. If conditional marketing approval is obtained, the results generated after approval could result in loss of marketing approval, changes in product labeling, and/or new or increased concerns about the side effects or efficacy of a product. The FDA has significant post-market authority, including the explicit authority to require post-market studies and clinical trials, labeling changes based on new safety information and compliance with FDA-approved risk evaluation and mitigation strategies. The FDA’s exercise of its authority has in some cases resulted, and in the future could result, in delays or increased costs during product development, clinical trials and regulatory review, increased costs to comply with additional post-approval regulatory requirements and potential restrictions on sales of approved products. In foreign jurisdictions, the regulatory approval processes generally include the same or similar risks as those associated with the FDA approval procedures described above. We cannot be certain that we will receive the approvals necessary to commercialize cytisinicline for sale either within or outside the United States.

Further, in June 2024, the U.S. Supreme Court reversed its longstanding approach under the Chevron doctrine, which provided for judicial deference to regulatory agencies, including the FDA. As a result of this decision, we cannot be sure whether there will be increased challenges to existing agency regulations or how lower courts will apply the decision in the context of other regulatory schemes without more specific guidance from the U.S. Supreme Court. For example, this decision may result in more companies bringing lawsuits against the FDA to challenge longstanding decisions and policies of the FDA, which could undermine the FDA’s authority, lead to uncertainties in the industry, and disrupt the FDA’s normal operations, which could impact the timely review of any regulatory filings or applications we submit to the FDA.

Disruptions at the FDA may slow the time necessary for new products to be reviewed and/or approved, which would adversely affect our business. In addition, there is substantial uncertainty regarding new initiatives and how these might impact the FDA, its implementation of laws, regulations, policies and guidance and its personnel. Similar initiatives may also be directed toward other government agencies. These initiatives could prevent, limit or delay development and regulatory approval of our product candidates, which would adversely affect our business.

Disruptions at the FDA may slow the time necessary for new products to be reviewed and/or approved, which would adversely affect our business. Changes in FDA staffing could result in delays in the FDA’s responsiveness or in its ability to review submissions or applications, issue regulations or guidance, or implement or enforce regulatory requirements in a timely fashion or at all. If any legislation, executive orders, or lapses in agency funding impose constraints on the FDA’s ability to engage in oversight and implementation activities in the normal course, our business may be negatively impacted.

Similar consequences would also result in the event of another significant shutdown of the federal government. For example, in 2024, the U.S. government was on the verge of a shutdown and has previously shut down several times, and certain regulatory agencies, such as the FDA, had to furlough critical employees and stop critical activities. If a prolonged government shutdown occurs, or if geopolitical or global health concerns prevent the FDA from conducting their regular inspections, reviews, or other regulatory activities, it could significantly impact the ability of the FDA to timely review and process our regulatory submissions, which could

29

have a material adverse effect on our business. Further, future government shutdowns or delays could impact our ability to access the public markets and obtain necessary capital in order to properly capitalize and continue our operations.

FDA-regulated industries, such as ours, face uncertainty with regard to the regulatory environment we will face as we proceed with research, development and commercialization. Some of these efforts have manifested to date in the form of personnel measures that could impact the FDA’s ability to hire and retain key personnel, which could result in delays or limitations on our ability to obtain guidance from the FDA on our product candidates in development and obtain the requisite regulatory approvals in the future. There remains general uncertainty regarding future activities. New executive orders, regulations, policies or guidance could be issued or promulgated that adversely affects us or creates a more challenging or costly environment to pursue the development of new therapeutic products. Alternatively, state governments may attempt to address or react to changes at the federal level with changes to their own regulatory frameworks in a manner that is adverse to our operations. If we become negatively impacted by future governmental orders, regulations, policies or guidance, there could be a material adverse effect on us and our business.

Healthcare legislative and executive reform measures may have a material adverse effect on our business, financial condition or results of operations.

In the United States, there have been and continue to be a number of legislative initiatives to contain healthcare costs. For example, in March 2010, the Healthcare Reform Law was passed, which substantially changed the way healthcare is financed by both governmental and private insurers, and significantly impacts the U.S. pharmaceutical industry. The Healthcare Reform Law, among other things, addresses a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for products that are inhaled, infused, instilled, implanted, or injected, increases the minimum Medicaid rebates owed by manufacturers under the Medicaid Drug Rebate Program and extends the rebate program to individuals enrolled in Medicaid managed care organizations, establishes annual fees and taxes on manufacturers of specified branded prescription products, and promotes a new Medicare Part D coverage gap discount program.

There have also been multiple recent U.S. congressional inquiries and proposed and adopted federal and state legislation designed to, among other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drugs and biologics. In addition, Congress and multiple presidential administrations have indicated that they will continue to seek new legislative and/or administrative measures to control drug costs. These initiatives recently culminated in the enactment of the Inflation Reduction Act, or the IRA, in August 2022, which will, among other things, allow HHS to negotiate the selling price of certain drugs and biologics that CMS reimburses under Medicare Part B and Part D, although only high-expenditure single-source drugs that have been approved for at least 7 years (11 years for biologics) can be selected by CMS for negotiation, with the negotiated price taking effect two years after the selection year. The negotiated prices, which will first become effective in 2026, will be capped at a statutory ceiling price beginning in October 2023, penalize drug manufacturers that increase prices of Medicare Part B and Part D drugs at a rate greater than the rate of inflation. The IRA permits the Secretary of HHS to implement many of these provisions through guidance, as opposed to regulation, for the initial years. Manufacturers that fail to comply with the IRA may be subject to various penalties, including civil monetary penalties. The IRA also extends enhanced subsidies for individuals purchasing health insurance coverage in U.S. Affordable Care Act, or ACA, marketplaces through plan year 2025. These provisions took effect progressively starting in 2023, although they may be subject to legal challenges. We anticipate that additional state and federal healthcare measures could be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced demand or lower pricing for cytisinicline, or additional pricing pressures. Currently, ACA and other federal laws and rules require most health insurance plans in the U.S. to cover some level of tobacco cessation treatments, including smoking cessation counseling and medications. If these provisions are repealed, in whole or in part, our business, financial condition, or results of operations could be negatively affected.

Our ability to obtain services, reimbursement or funding may be impacted by possible reductions in federal spending in the United States as well as globally.

U.S. federal government agencies currently face potentially significant spending reductions. Under the Budget Control Act of 2011, the failure of Congress to enact deficit reduction measures of at least $1.2 trillion for the years 2013 through 2021 triggered automatic cuts to most federal programs. These cuts include aggregate reductions to Medicare payments to providers of up to two percent per fiscal year, which went into effect beginning on April 1, 2013 and will stay in effect through 2025 unless additional Congressional action is taken. The American Taxpayer Relief Act of 2012, which was enacted on January 1, 2013, among other things, reduced Medicare payments to several providers, including hospitals and imaging centers. The full impact on our business of these automatic cuts is uncertain.

If government spending is reduced, anticipated budgetary shortfalls may also impact the ability of relevant agencies, such as the FDA or the National Institutes of Health to continue to function at current levels. Amounts allocated to federal grants and contracts may be reduced or eliminated. These reductions may also impact the ability of relevant agencies to timely review and approve drug research

30

and development, manufacturing, and marketing activities, which may delay our ability to develop, market and sell any products we may develop. Any reductions in government spending in countries outside the United States may also impact us negatively, such as by limiting the functioning of international regulatory agencies in countries outside the United States or by eliminating programs on which we may rely.

Even if we obtain regulatory approval for cytisinicline, we will remain subject to ongoing regulatory requirements in connection with the sale and distribution of cytisinicline.

Even if cytisinicline is approved by the FDA or comparable foreign regulatory authorities, we will be subject to ongoing regulatory requirements with respect to manufacturing, labeling, packaging, storage, advertising, promotion, sampling, record-keeping, conduct of post-marketing clinical trials, and submission of safety, efficacy and other post-approval information, including both federal and state requirements in the United States and the requirements of comparable foreign regulatory authorities. Compliance with such regulatory requirements will likely be costly and the failure to comply would likely result in penalties, up to and including, the loss of such approvals from the FDA or comparable foreign regulatory authorities.

Manufacturers and manufacturers’ facilities are required to continuously comply with FDA and comparable foreign regulatory authority requirements, including ensuring that quality control and manufacturing procedures conform to current cGMP regulations and corresponding foreign regulatory manufacturing requirements. As such, we, Sopharma and other contract manufacturers, if any, will be subject to continual review and inspections to assess compliance with cGMP and adherence to commitments made in any NDA or marketing authorization application. Sopharma currently does not have FDA approval of its facilities in Bulgaria. If Sopharma or our other contract manufacturers fail to maintain cGMP compliance or fail inspections with the FDA and other regulators, then our business could severely be harmed.

Ongoing post-approval monitoring and clinical trial obligations may be costly to us and the failure to meet such obligations may result in the withdrawal of such approvals.

Any regulatory approvals that we receive for cytisinicline may be subject to limitations on the approved indicated uses for which cytisinicline may be marketed or to the conditions of approval, or contain requirements for potentially costly post-marketing testing, including Phase 4 clinical trials, and surveillance to monitor the safety and efficacy of cytisinicline. We will be required to report adverse reactions and production problems, if any, to the FDA and comparable foreign regulatory authorities. Any new legislation addressing product safety issues could result in delays in product development or commercialization, or increased costs to assure compliance. If our original marketing approval for cytisinicline was obtained through an accelerated approval pathway, we could be required to conduct a successful post-marketing clinical trial in order to confirm the clinical benefit for our products. An unsuccessful post-marketing clinical trial or failure to complete such a trial could result in the withdrawal of marketing approval.

If a regulatory agency discovers previously unknown problems with a product, such as adverse events of unanticipated severity or frequency, or problems with the facility where the product is manufactured, or disagrees with the promotion, marketing or labeling of a product, the regulatory agency may impose restrictions on that product or us, including requiring withdrawal of the product from the market. If we fail to comply with applicable regulatory requirements, a regulatory agency or enforcement authority may, among other things:

•issue warning letters;

•impose civil or criminal penalties;

•suspend or withdraw regulatory approval;

•suspend any of our ongoing clinical trials;

•refuse to approve pending applications or supplements to approved applications submitted by us;

•impose restrictions on our operations, including closing our contract manufacturers’ facilities; or

•require a product recall.

Any government investigation of alleged violations of law would be expected to require us to expend significant time and resources in response and could generate adverse publicity. Any failure to comply with ongoing regulatory requirements may significantly and adversely affect our ability to develop and commercialize our products and the value of us and our operating results would be adversely affected.

31

We may be subject, directly or indirectly, to federal and state healthcare fraud and abuse laws, false claims laws, and health information privacy and security laws. If we are unable to comply, or have not fully complied, with such laws, we could face substantial penalties.

If we obtain FDA approval for cytisinicline and begin commercializing it in the United States, our operations may be subject to various federal and state fraud and abuse laws, including, without limitation, the federal Anti-Kickback Statute, the federal False Claims Act, and physician sunshine laws and regulations. These laws may impact, among other things, our proposed sales, marketing, and education programs. In addition, we may be subject to patient privacy regulation by both the federal government and the states in which we conduct our business. The laws that may affect our ability to operate include:

•the federal Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully soliciting, receiving, offering or paying remuneration, directly or indirectly, to induce, or in return for, the purchase or recommendation of an item or service reimbursable under a federal healthcare program, such as the Medicare and Medicaid programs;

•federal civil and criminal false claims laws and civil monetary penalty laws, which prohibit, among other things, individuals or entities from knowingly presenting, or causing to be presented, claims for payment from Medicare, Medicaid, or other third-party payors that are false or fraudulent;

•the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which created new federal criminal statutes that prohibit executing a scheme to defraud any healthcare benefit program and making false statements relating to healthcare matters;

•HIPAA, as amended by the Health Information Technology and Clinical Health Act, and its implementing regulations, which imposes specified requirements relating to the privacy, security, and transmission of individually identifiable health information;

•the federal physician sunshine requirements under the Healthcare Reform Law requires manufacturers of products, devices, biologics, and medical supplies to report annually to the U.S. Department of Health and Human Services information related to payments and other transfers of value to physicians, other healthcare providers, and teaching hospitals, and ownership and investment interests held by physicians and other healthcare providers and their immediate family members and applicable group purchasing organizations; and

•state law equivalents of each of the above federal laws, such as anti-kickback and false claims laws that may apply to items or services reimbursed by any third-party payor, including governmental and private payors, to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government, or otherwise restrict payments that may be made to healthcare providers and other potential referral sources; state laws that require product manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures, and state laws governing the privacy and security of health information in specified circumstances, many of which differ from each other in significant ways and may not have the same effect, thus complicating compliance efforts.

Because of the breadth of these laws and the narrowness of the statutory exceptions and safe harbors available, it is possible that some of our business activities could be subject to challenge under one or more of such laws. In addition, recent healthcare reform legislation has strengthened these laws. For example, the Healthcare Reform Law, among other things, amends the intent requirement of the federal anti-kickback and criminal healthcare fraud statutes. A person or entity no longer needs to have actual knowledge of this statute or specific intent to violate it. Moreover, the Healthcare Reform Law provides that the government may assert that a claim including items or services resulting from a violation of the federal anti-kickback statute constitutes a false or fraudulent claim for purposes of the False Claims Act.

If our operations are found to be in violation of any of the laws described above or any other governmental regulations that apply to us, we may be subject to penalties, including civil and criminal penalties, damages, fines, exclusion from participation in government healthcare programs, such as Medicare and Medicaid, imprisonment, and the curtailment or restructuring of our operations, any of which could adversely affect our ability to operate our business and its results of operations.

Our employees, independent contractors, consultants, commercial partners, principal investigators, or CROs may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which could have a material adverse effect on our business.

We are exposed to the risk of fraud or misconduct by employees, independent contractors, consultants, commercial partners, principal investigators, or CROs, which could include intentional, reckless, negligent, or unintentional failures to comply with FDA regulations,

32

comply with applicable fraud and abuse laws, provide accurate information to the FDA, report financial information or data accurately, or disclose unauthorized activities to us. This misconduct could also involve the improper use or misrepresentation of information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to our reputation. It is not always possible to identify and deter this type of misconduct, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with such laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business, financial condition and results of operations, including the imposition of significant fines or other sanctions. Further, even if we are successful in asserting a defense, we may incur substantial costs in preparing and maintaining our defense and any such action would be time- and resource-intensive and potentially divert management’s attention from the business, which could adversely affect our business and results of operations.

Moreover, our employees are increasingly utilizing social media tools and our website as a means of communication. Despite our efforts to monitor social media communications, there is risk that the unauthorized use of social media by our employees to communicate about our products or business, or any inadvertent disclosure of material, nonpublic information through these means, may result in violations of applicable laws and regulations, which may give rise to liability and result in harm to our business. In addition, there is also risk of inappropriate disclosure of sensitive information, which could result in significant legal and financial exposure and reputational damages that could potentially have a material adverse impact on our business, financial condition, results of operations and prospects. Our employees could also inappropriately utilize artificial intelligence, or AI, in connection with their social media communications, introducing another potential source of reputational damage or other potential legal or financial exposure.

A Breakthrough Therapy designation by the FDA may not lead to a faster development or regulatory review or approval process for the vaping/ e-cigarette cessation indication and it does not increase the likelihood that our product candidates will receive marketing approval.

The FDA has granted Breakthrough Therapy designation for cytisinicline for nicotine e-cigarette, or vaping, cessation. A breakthrough therapy is defined as a drug or biologic that is intended, alone or in combination with one or more other drugs or biologics, to treat a serious or life-threatening disease or condition and preliminary clinical evidence indicates that the drug or biologic may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints, such as substantial treatment effects observed early in clinical development. For product candidates that have been designated as breakthrough therapies, interaction and communication between the FDA and the sponsor of the trial can help to identify the most efficient path for clinical development but does not guarantee a more efficient path.

Our receipt of Breakthrough Therapy designation for cytisinicline may not result in a faster development process, review or approval and does not assure ultimate approval by the FDA. In addition, when a product candidate qualifies as a breakthrough therapy, the FDA may later decide that the product no longer meets the conditions for qualification.

Risks Related to our Business Operations

It is difficult to evaluate our current business, predict our prospects and forecast our financial performance and growth.

To date our business activities have been focused primarily on the development and regulatory approval of cytisinicline and its various alternative forms. Although we have not generated revenue to date, we expect that, after any regulatory approval, any receipt of revenue will be attributable to sales of cytisinicline, primarily in the United States, the EU (including the U.K.) and Asia. Because we devote substantially all of our resources to the development of cytisinicline and rely on cytisinicline as our sole source of potential revenue for the foreseeable future, any factors that negatively impact this product, or result in decreasing product sales, would materially and adversely affect our business, financial condition and results of operations.

Our future success depends in part on our ability to attract, retain, and motivate other qualified personnel.

We will need to expand and effectively manage our managerial, operational, financial, development and other resources in order to successfully pursue our development and commercialization efforts for our existing and future product candidates. We expect to need additional scientific, technical, operational, financial and other personnel. Our success depends on our continued ability to attract, retain and motivate highly qualified personnel, such as management, clinical and preclinical personnel, including our executive chairman Thomas B. King, and our executive officers Richard Stewart, Mark Oki, Cindy Jacobs and Jaime Xinos. In addition, although we have entered into employment agreements with each of Mr. King, Mr. Stewart, Mr. Oki, Dr. Jacobs and Ms. Xinos, such

33

agreements permit those executives to terminate their employment with us at any time, subject to providing us with advance written notice.

We may not be able to attract and retain personnel on acceptable terms, if at all, given the competition among numerous pharmaceutical and biotechnology companies for individuals with similar skill sets. In addition, failure to succeed in development and commercialization of cytisinicline may make it more challenging to recruit and retain qualified personnel. The inability to recruit and retain qualified personnel, or the loss of the services of our current personnel may impede the progress of our research, development, and commercialization objectives and would negatively impact our ability to succeed in our product development strategy.

We will need to expand our organization and we may experience difficulties in managing this growth, which could disrupt our operations.

We will need to expand our organization as we prepare for potential commercialization of cytisinicline, which may require us to divert a disproportionate amount of our attention away from our day-to-day activities and devote a substantial amount of time to managing these growth activities. We do not currently have a commercial infrastructure, and we may not be able to successfully develop a commercial infrastructure to support the commercialization of cytisinicline on the timeline needed, or at all. Commercialization requires significantly greater financial and organizational resources, which may not be available to us. We may not be able to effectively manage the expansion of our operations, which may result in weaknesses in its infrastructure, operational mistakes, loss of business opportunities, loss of employees, and reduced productivity among remaining employees. Expanded growth and commercialization requires significant capital expenditures and may divert financial resources from other projects, such as the development of additional product candidates. If we are unable to effectively manage our growth or commercialize plans, our expenses may increase more than expected, our ability to generate and/or grow revenue could be reduced and we may not be able to implement our business strategy. Our future financial performance and our ability to commercialize product candidates and compete effectively will depend, in part, on our ability to effectively manage any future growth and commercialization.

In the future, we may invest in the development of additional indications for cytisinicline. If we invest in and are unsuccessful in developing additional indications for cytisinicline, our business, financial condition and results of operations may be adversely affected.

In the future, we may invest in the research and development of new indications for cytisinicline to address nicotine dependence associated with the use of e-cigarette, or vaping, products. Given their recent introduction, the use of vaping products is not fully understood which may increase the risk of failure in this area. We expect that we will need to invest significant amounts of capital to pursue development of an e-cigarette cessation indication. If we are unable to provide such additional capital when needed, we may be unable to complete the development, regulatory approval and commercialization of an e-cigarette cessation indication.

The development of additional indications for cytisinicline is highly uncertain. During the research and development cycle, we may expend significant time and resources on developing additional indications without any assurance that we will recoup our investments or that our efforts will be commercially successful. A high rate of failure is inherent in the discovery and development of additional indications, and failure can occur at any point in the process, including late in the process after substantial investment. Further, any new indications may not be accepted by physicians and the medical community at large, and competitors may develop and market equivalent or superior products. Failure to launch commercially successful new indications for cytisinicline after significant investment could have a material adverse effect on our business, financial condition and results of operations.

Our internal computer systems, or those of our third-party collaborators or other service providers, may fail or suffer security breaches and cyber-attacks, which could result in a material disruption of our development programs.

We believe that we take reasonable steps that are designed to protect the security, integrity and confidentiality of the information we collect, use, store, and disclose, but inadvertent or unauthorized data access may occur despite our efforts. Our system protections may be ineffective or inadequate, or we could be impacted by software bugs or other technical malfunctions, as well as employee error or malfeasance. Additionally, privacy and data protection laws are evolving, and it is possible that these laws may be interpreted and applied in a manner that is inconsistent with our data handling safeguards and practices that could result in fines, lawsuits, and other penalties, and significant changes to our or our third-party collaborators or service providers business practices and products and service offerings. To the extent that the measures we or our third-party collaborators or service providers have taken prove to be insufficient or inadequate, we may become subject to litigation, breach notification obligations, or regulatory or administrative sanctions, which could result in significant fines, penalties, damages, harm to our reputation, or loss of customers. While we have not experienced any material losses as a result of any system failure, accident or security breach to date, we have been the subject of certain phishing attempts in the past. If such an event were to occur and cause interruptions in our operations, it could result in a material disruption of our development programs and our business operations, whether due to a loss of our trade secrets or other proprietary information or other similar disruptions. Additionally, a party who circumvents our security measures could, among other

34

effects, appropriate patient information or other proprietary data, cause interruptions in our operations, or expose our collaborators to hacks, viruses, and other disruptions. For example, the loss of clinical trial data from completed or future clinical trials could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. In addition, insurance coverage to compensate for any losses associated with such events, if available, may not be adequate to cover all potential losses. The development and maintenance of these systems, controls and processes is costly and requires ongoing monitoring and updating as technologies change and efforts to overcome security measures become increasingly sophisticated.

To the extent that any disruption, security breach, or cyber-attack were to result in a loss of, or damage to, our data or applications, or inappropriate disclosure of personal, confidential or proprietary information, we could incur liability, our competitive position could be harmed and the further development and commercialization of our product candidate could be delayed. Depending on the nature of the information compromised, in the event of a data breach or other unauthorized access to our patient data, we may also have obligations to notify patients and regulators about the incident, and we may need to provide some form of remedy, such as a subscription to credit monitoring services, pay significant fines to one or more regulators, or pay compensation in connection with a class-action settlement (including under the new private right of action under the California Consumer Privacy Act of 2018). Such breach notification laws continue to evolve and may be inconsistent from one jurisdiction to another. Complying with these obligations could cause us to incur substantial costs and could increase negative publicity surrounding any incident that compromises customer data. Additionally, the financial exposure from the events referenced above could either not be insured against or not be fully covered through any insurance that we may maintain or obtain in the future, and there can be no assurance that the limitations of liability in any of our contracts would be enforceable or adequate or would otherwise protect us from liabilities or damages as a result of the events referenced above. Any of the foregoing could have an adverse effect on our business, reputation, financial condition and results of operations.

In efforts to innovate and optimize operational efficiency, certain third parties with whom we work may integrate AI into various aspects of their work with us. While we do not currently utilize AI tools in a significant way, we may in the future integrate AI into various projects. While AI presents opportunities for enhanced productivity and innovation, it also introduces inherent risks, including legal and regulatory, that could adversely impact our business and reputation. Proper use of AI can lead to improved decision-making, cost reduction, and competitive advantage. However, improper use, including algorithmic biases, ethical considerations, data privacy issues, unknown or zero-day software vulnerabilities, and potential regulatory non-compliance, by our employees or third parties with whom we work could result in reputational damage, legal liabilities, and financial losses. The rapidly evolving regulatory landscape surrounding AI also poses a risk, as new laws and regulations could impose additional compliance burdens, resulting in increased operational costs. We are committed to implementing robust governance and control mechanisms to mitigate these risks, but there can be no assurance that such measures will adequately prevent or mitigate the adverse effects that the integration and use of AI may have on our business, financial condition, and results of operations.

Risks Related to Our Reliance on Third Parties

We expect to continue to rely on third parties to manufacture cytisinicline. We currently exclusively rely on Sopharma to manufacture cytisinicline for use in clinical trials and plan to engage other third parties for our manufacturing process, including to manufacture cytisinicline on a commercial scale, if approved. Our commercialization of cytisinicline could be stopped, delayed or made less profitable if Sopharma fails to obtain approval of government regulators, fails to provide us with sufficient quantities of product or fails to do so at acceptable quality levels or prices.

We do not currently have, nor do we currently plan to develop, the internal infrastructure or capability to manufacture our clinical supplies for use in the conduct of our clinical trials, and we lack the resources and the capability to manufacture cytisinicline on a clinical or commercial scale. We currently exclusively rely on Sopharma to manufacture cytisinicline for use in clinical trials and plan to engage other third parties for our manufacturing process, including, if cytisinicline is approved, to manufacture cytisinicline on a commercial scale, with tableting, blistering and packaging. We may encounter technical difficulties or delays in the transfer of cytisinicline manufacturing on a commercial scale to other third-party manufacturers, encounter difficulties and delays in identifying third-party manufacturers other than Sopharma. We may be unable to enter into agreements for commercial supply with third-party manufacturers on acceptable terms, or at all. If and when product sales for cytisinicline commence and grow, cytisinicline will require production processes to be scaled up. We will be dependent on external manufacturers and suppliers to ensure that their manufacturing processes can be scaled up adequately such that we are able to supply the market. If any of our key suppliers are unable or unwilling to scale up production, or we otherwise experience a product shortfall, any such product shortfall could delay commercialization of cytisinicline and impair sales, and our business, financial condition and results of operations could be materially adversely affected.

Sopharma and potential other third-party manufacturers are subject to regulatory requirements covering manufacturing, testing, quality control and record keeping relating to product candidates and are also subject to ongoing inspections by regulatory agencies. While Sopharma has been subject to oversight by regulators in Europe and Bulgaria, they have never been inspected by the FDA and there is no assurance that their quality systems will be satisfactory to pass a pre-approval inspection by the FDA. Failure by Sopharma or any

35

of our potential third-party manufacturers to comply with applicable regulations may result in long delays and interruptions to our product candidate supply while we seek to secure another supplier that meets all regulatory requirements.

Our reliance on Sopharma and potential other third-party manufacturers exposes us to the following additional risks:

•Sopharma and potential other third-party manufacturers might be unable to timely manufacture cytisinicline or produce the quantity and quality required to meet our clinical and commercial needs, if any;

•Sopharma and potential other third-party manufacturers may not be able to execute our manufacturing procedures appropriately;

•Sopharma and potential other third-party manufacturers may not perform as agreed or may not remain in the contract manufacturing business for the time required to supply our clinical trials or to successfully produce, store and distribute our products;

•Sopharma and potential other third-party manufacturers are or will be subject to ongoing periodic unannounced inspection by the FDA and corresponding state agencies to ensure strict compliance with cGMPs and other government regulations and corresponding foreign standards. We do not have control over Sopharma’s, or other third parties’, compliance with these regulations and standards;

•we may not own, or may have to share, the intellectual property rights to any improvements made by Sopharma and potential other third-party manufacturers in the manufacturing process for cytisinicline;

•we do not own all the intellectual property rights to cytisinicline, and Sopharma and potential other third-party manufacturers could license such rights to third parties or begin supplying other third parties with cytisinicline; and

•Sopharma and potential other third-party manufacturers could breach or terminate their agreement with us.

Each of these risks could delay our clinical trials, the approval, if any, of cytisinicline by the FDA or the commercialization of cytisinicline or result in higher costs or deprive us of potential product revenue.

We currently rely on Sopharma to package the cytisinicline used in our clinical trials. If Sopharma fails to timely deliver the supplies needed, then our clinical studies could be delayed materially. Sopharma may fail to perform under their contractual obligations or may fail to deliver the required commercial product on a timely basis and at commercially reasonable prices. If we are required to identify and qualify an alternate manufacturer, we may be forced to delay or suspend our clinical trials.

The manufacture of medical products is complex and requires significant expertise and capital investment, including the development of advanced manufacturing techniques and process controls. Manufacturers of medical products often encounter difficulties in production, particularly in scaling up and validating initial production and absence of contamination. These problems include difficulties with production costs and yields, quality control, including stability of the product, quality assurance testing, operator error, shortages of qualified personnel, as well as compliance with strictly enforced federal, state and foreign regulations. Furthermore, if contaminants are discovered in the supply of cytisinicline or in the Sopharma manufacturing facilities, such manufacturing facilities may need to be closed for an extended period of time to investigate and remedy the contamination. We cannot be assured that any stability or other issues relating to the manufacture of cytisinicline will not occur in the future. Additionally, Sopharma may experience manufacturing difficulties due to resource constraints or as a result of labor disputes or political instability in the countries in which Sopharma conducts its operations. For example, the military conflict between Russia and Ukraine may increase the likelihood of supply interruptions and hinder our ability to find the materials we need to make our product candidate. If Sopharma were to encounter any of these difficulties, or otherwise fail to comply with its contractual obligations, our ability to provide our product candidate to patients in clinical trials could be delayed or suspended. Any delay or interruption in the supply of clinical trial supplies could delay the completion of clinical trials, increase the costs associated with maintaining clinical trial programs and, depending upon the period of delay, require us to commence new clinical trials at additional expense or terminate clinical trials completely. Similar political instability could also harm the commercial production and supply of cytisinicline in the event that cytisinicline is ultimately approved for commercial sale.

In June 2021, Pfizer Inc. halted the distribution of its smoking cessation drug, Chantix (varenicline) after heightened levels of a nitrosamine impurity, called N-nitroso-varenicline, which were above the FDA’s acceptable daily intake limit, were found in some lots of Chantix pills. Long-term use of products containing N-nitroso-varenicline may be associated with a potential increased cancer risk in humans. In September 2021, Pfizer announced a nationwide recall in the United States of all lots of Chantix and have also withdrawn the product in other countries around the globe. We have undertaken a review of cytisinicline in accordance with regulatory guidance to assess the risk of the presence of nitrosamines and other potential impurities. If contaminants, or impurities

36

such as nitrosamines, are discovered in quantities above regulators’ thresholds within our supply of cytisinicline, we may potentially delay product development and approval or have a material adverse impact on our business.

We and our third-party manufacturers may also be impacted by new legislation and regulations relating to the manufacture of medical products. For example, legislation has been introduced and passed in Congress to limit certain U.S. biotechnology companies from using equipment or services produced or provided by select Chinese biotechnology companies, including those affiliated with the manufacture of our API, Wuxi STA, and others in Congress have advocated for the use of existing executive branch authorities to limit those Chinese service providers’ ability to engage in business in the U.S. We cannot predict what actions may ultimately be taken with respect to trade relations between the United States and China or other countries, what products and services may be subject to such actions or what actions may be taken by the other countries in retaliation.

We rely on third parties to conduct our clinical trials and perform other services. If these third parties do not successfully perform and comply with regulatory requirements, we may not be able to successfully complete clinical development, obtain regulatory approval or commercialize cytisinicline and our business could be substantially harmed.

We plan to rely upon third-party CROs to conduct, monitor and manage our ongoing clinical programs. We rely on these parties for execution of clinical trials and manage and control only some aspects of their activities. We remain responsible for ensuring that each of our trials is conducted in accordance with the applicable protocol, legal, regulatory, and scientific standards and our reliance on the CROs does not relieve us of our regulatory responsibilities. We and our CROs and other vendors are required to comply with all applicable laws, regulations and guidelines, including those required by the FDA and comparable foreign regulatory authorities for all of our product candidates in clinical development. If we or any of our CROs or vendors fail to comply with applicable laws, regulations and guidelines, the results generated in our clinical trials may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications. We cannot be assured that our CROs and other vendors will meet these requirements, or that upon inspection by any regulatory authority, such regulatory authority will determine that efforts, including any of our clinical trials, comply with applicable requirements. Our failure to comply with these laws, regulations and guidelines may require us to repeat clinical trials, which would be costly and delay the regulatory approval process.

If any of our relationships with these third-party CROs terminate, we may not be able to enter into arrangements with alternative CROs in a timely manner or do so on commercially reasonable terms. In addition, our CROs may not prioritize our clinical trials relative to those of other customers and any turnover in personnel or delays in the allocation of CRO employees by the CRO may negatively affect our clinical trials. If CROs do not successfully carry out their contractual duties or obligations or meet expected deadlines, continued development of cytisinicline may be delayed or terminated and we may not be able to meet our current plans with respect to cytisinicline. CROs may also involve higher costs than anticipated, which could negatively affect our financial condition and operations.

We may not be able to establish or maintain the third-party relationships that are necessary to develop or potentially commercialize cytisinicline.

Our business plan relies heavily on third-party collaborators, partners, licensees, clinical research organizations, clinical investigators, vendors or other third parties to support our research and development efforts and to conduct clinical trials for cytisinicline. We cannot guarantee that we will be able to successfully negotiate agreements for, or maintain relationships with, these third parties on a commercially reasonable basis, if at all. If we fail to establish or maintain such third-party relationships as anticipated, our business could be adversely affected.

We may be unable to realize the potential benefits of any collaborations which we may enter into with other companies for the development and commercialization of cytisinicline.

We may enter into a collaboration with third parties concerning the development and/or commercialization of cytisinicline; however, there is no guarantee that any such collaboration will be successful. Collaborations may pose a number of risks, including:

•collaborators often have significant discretion in determining the efforts and resources that they will apply to the collaboration, and may not commit sufficient resources to the development, marketing or commercialization of cytisinicline;

•collaborators may not perform their obligations as expected;

•any such collaboration may significantly limit our share of potential future profits from the associated program, and may require us to relinquish potentially valuable rights to cytisinicline, or other potential products or proprietary technologies or grant licenses on terms that are not favorable to us;

37

•collaborators may cease to devote resources to the development or commercialization of cytisinicline if the collaborators view cytisinicline as competitive with their own products or product candidates;

•disagreements with collaborators, including disagreements over proprietary rights, contract interpretation or the course of development, might cause delays or termination of the development or commercialization of cytisinicline, and might result in legal proceedings, which would be time consuming, distracting and expensive;

•collaborators may be impacted by changes in their strategic focus or available funding, or business combinations involving them, which could cause them to divert resources away from the collaboration;

•collaborators may infringe the intellectual property rights of third parties, which may expose us to litigation and potential liability;

•the collaborations may not result in us achieving revenues to justify such transactions; and

•collaborations may be terminated and, if terminated, may result in a need for us to raise additional capital to pursue further development or commercialization of cytisinicline.

As a result, a collaboration may not result in the successful development or commercialization of cytisinicline.

We enter into various contracts in the normal course of our business in which we indemnify the other party to the contract. In the event we have to perform under these indemnification provisions, it could have a material adverse effect on our business, financial condition and results of operations.

In the normal course of business, we enter into academic, commercial, service, collaboration, licensing, consulting and other agreements that contain indemnification provisions. With respect to our academic and other research agreements, we typically indemnify the institution and related parties from losses arising from claims relating to the products, processes or services made, used, sold or performed pursuant to the agreements for which we have secured licenses, and from claims arising from our or our sublicensees’ exercise of rights under the agreement. With respect to our collaboration agreements, we indemnify our collaborators from any third-party product liability claims that could result from the production, use or consumption of the product, as well as for alleged infringements of any patent or other intellectual property right by a third party. With respect to consultants, we indemnify them from claims arising from the good faith performance of their services.

Should our obligation under an indemnification provision exceed applicable insurance coverage or if we were denied insurance coverage, our business, financial condition and results of operations could be adversely affected. Similarly, if we are relying on a collaborator to indemnify us and the collaborator is denied insurance coverage or the indemnification obligation exceeds the applicable insurance coverage, and if the collaborator does not have other assets available to indemnify us, our business, financial condition and results of operations could be adversely affected.

We may rely on third parties to perform many essential services for any of our current or future product candidates that we commercialize, including services related to warehousing and inventory control, distribution, government price reporting, customer service, accounts receivable management, cash collection, and adverse event reporting. If these third parties fail to perform as expected or to comply with legal and regulatory requirements, our ability to commercialize any of our current or future product candidates will be significantly impacted and we may be subject to regulatory sanctions.

We may retain third‑party service providers to perform a variety of functions related to the sale and distribution of any of our current or future product candidates, key aspects of which will be out of our direct control. These service providers may provide key services related to warehousing and inventory control, distribution, government price reporting, customer service, accounts receivable management, and cash collection, and, as a result, most of our inventory may be stored at a single warehouse maintained by one such service provider. If we retain a service provider, we would substantially rely on it as well as other third‑party providers that perform services for us, including entrusting our inventories of products to their care and handling. If these third‑party service providers fail to comply with applicable laws and regulations, fail to meet expected deadlines, or otherwise do not carry out their contractual duties to us, or encounter physical or natural damage at their facilities, our ability to deliver product to meet commercial demand would be significantly impaired and we may be subject to regulatory enforcement action.

In addition, we may engage third parties to perform various other services for us relating to adverse event reporting, safety database management, fulfillment of requests for medical information regarding our product candidates and related services. If the quality or accuracy of the data maintained by these service providers is insufficient, or these third parties otherwise fail to comply with regulatory requirements related to adverse event reporting, we could be subject to regulatory sanctions.

38

Additionally, if a third-party errs in calculating government pricing information from transactional data in our financial records, it could impact our discount and rebate liability and potentially cause government programs to overpay providers for our products, which could expose us to significant False Claims Act liability and other civil monetary penalties.

Risks Related to Commercialization of Cytisinicline

We face substantial competition and our competitors may discover, develop or commercialize products faster or more successfully than us.

The development and commercialization of new products is highly competitive. We face competition from major pharmaceutical companies, specialty pharmaceutical companies, biotechnology companies, universities and other research institutions worldwide with respect to products for smoking cessation and other product candidates that we may seek to develop or commercialize in the future. We are aware that many companies have therapeutics marketed or in development for smoking cessation. We expect that our competitors and potential competitors have historically dedicated, and will continue to dedicate, significant resources to aggressively develop and commercialize their products in order to take advantage of the significant market opportunity.

We have and will continue to pursue new cytisinicline products and alternative sources of cytisinicline used for our products, including additional natural and synthetic sources and routes. The pursuit and development of alternative cytisinicline products and sources is expensive, time consuming, involves significant risk and may not be commercially feasible. There is no guarantee that we will be successful, or that we will be able to develop new products or alternative cytisinicline sources first before our competitors do.

Many of our competitors have substantially greater financial, name recognition, manufacturing, marketing, research, technical and other resources than us. Additional mergers and acquisitions in the biotechnology and pharmaceutical industries may result in even more resources being concentrated in our competitors. Further, our competitors may develop new products that are safer, more effective or more cost-efficient than cytisinicline. Large pharmaceutical companies in particular have extensive expertise in non-clinical and clinical testing and in obtaining regulatory approvals for products. In addition, academic institutions, government agencies, and other public and private organizations conducting research may seek patent protection with respect to potentially competitive products or technologies. These organizations may also establish exclusive collaborative or licensing relationships with our competitors. Failure of cytisinicline to effectively compete against established treatment options or in the future with new products currently in development would harm our business, financial condition, results of operations and prospects.

The commercial success of cytisinicline will depend upon the degree of market acceptance by physicians, patients, third-party payors, and others in the medical community. Failure to obtain or maintain adequate reimbursement or insurance coverage for products, if any, could limit our ability to market cytisinicline and decrease our ability to generate revenue.

Even with the approvals from the FDA and comparable foreign regulatory authorities, the commercial success of cytisinicline will depend in part on the healthcare providers, patients, and third-party payors accepting cytisinicline as medically useful, cost-effective, and safe. Cytisinicline may not gain market acceptance by physicians, patients and third-party payors. The degree of market acceptance of cytisinicline will depend on a number of factors, including but not limited to:

•the safety and efficacy of cytisinicline as demonstrated in clinical trials and potential advantages over competing treatments, if any;

•the clinical indications for which approval is granted, if any, including any limitations or warnings contained in cytisinicline’s approved labeling;

•the cost of treatment;

•the perceived ratio of risk and benefit of these therapies by physicians and the willingness of physicians to recommend the product to patients based on such risks and benefits;

•the marketing, sales and distribution support for cytisinicline;

•the publicity concerning cytisinicline or competing products and treatments;

•the pricing and availability of third-party insurance coverage and reimbursement;

•negative perceptions or experiences with our competitor’s products may be ascribed to cytisinicline; and

•availability of cytisinicline from other suppliers and/or distributors.

39

Even if cytisinicline displays a favorable efficacy and safety profile upon approval, market acceptance of cytisinicline remains uncertain. Efforts to educate the medical community and third-party payors on the benefits of cytisinicline, if any, may require significant investment and resources and may never be successful.

Sales of cytisinicline, if any, will depend substantially, both domestically and abroad, on the extent to which the costs of cytisinicline will be paid for or reimbursed by health maintenance, managed care, pharmacy benefit and similar healthcare management organizations, or government payors and private payors. Significant uncertainty exists as to the reimbursement status for newly approved prescription products, including coding, coverage and payment. There is no uniform policy requirement for coverage and reimbursement for prescription products among third-party payors in the United States; therefore, coverage and reimbursement for our products could differ significantly from payor to payor. In the United States, third-party payors often rely upon Medicare coverage policy and payment limitations in setting their own reimbursement policies, but they also have their own methods and approval process apart from Medicare coverage and reimbursement determinations. It is difficult to predict what CMS will decide with respect to reimbursement for novel product candidates such as cytisinicline and what reimbursement codes cytisinicline may receive if approved. If coverage and reimbursement are not available, or are available only in limited amounts, we may have to subsidize or provide cytisinicline for free or we may not be able to successfully commercialize cytisinicline

Additionally, third-party payors, including governmental and private insurers, may also encourage the use of generic products instead of cytisinicline, or a generic version of cytisinicline, which require a prescription or may be available OTC. If our products fail to achieve an adequate level of acceptance by physicians, patients, third-party payors, and other healthcare providers, we will not be able to generate sufficient revenue to become or remain profitable.

Outside the United States, selling operations are generally subject to extensive governmental price controls and other price-restrictive regulations, and we believe the increasing emphasis on cost-containment initiatives in Europe, Canada, and other countries has and will continue to put pressure on the pricing and usage of products. In many countries, the prices of products are subject to varying price control mechanisms as part of national health systems. Price controls or other changes in pricing regulation could restrict the amount that we are able to charge for our products, if any. Accordingly, in markets outside the United States, the potential revenue may be insufficient to generate commercially reasonable revenue and profits.

To secure coverage and reimbursement for any product that might be approved for sale, we may need to conduct expensive pharmacoeconomic studies in order to demonstrate the medical necessity and cost-effectiveness of the product to third-party payors, which costs would be in addition to those required to obtain FDA or other comparable regulatory approvals. A payor’s decision to provide coverage for a product does not imply that an adequate reimbursement rate will be approved. Moreover, eligibility for reimbursement does not imply that any product will be paid for in all cases or at a rate that covers our costs. Interim payments for new products, if applicable, may also not be sufficient to cover our costs and may not be made permanent. Payment rates may vary according to the use of the product and the clinical setting in which it is used, may be based on payments allowed for lower cost products that are already reimbursed and may be incorporated into existing payments for other services. Net prices for products may be reduced by mandatory discounts or rebates required by third-party payors and by any future relaxation of laws that presently restrict imports of products from countries where they may be sold at lower prices than in the United States.

Accordingly, the coverage determination process is often a time-consuming and costly process that will require us to provide scientific and clinical support for the use of our products to each payor separately, with no assurance that coverage and adequate payment will be applied consistently or obtained. The process for determining whether a payor will cover and how much it will reimburse a product may be separate from the process of seeking approval of the product or for setting the price of the product. Even if reimbursement is provided, market acceptance of our products may be adversely affected if the amount of payment for our products proves to be unprofitable for health care providers or less profitable than alternative treatments or if administrative burdens make our products less desirable to use.

Increasing efforts by governmental and private payors in the United States and abroad to limit or reduce healthcare costs may result in restrictions on coverage and the level of reimbursement for new products.

Increasing efforts by governmental and private payors in the United States and abroad to limit or reduce healthcare costs may result in restrictions on coverage and the level of reimbursement for new products and, as a result, they may not cover or provide adequate payment for our products. We expect to experience pricing pressures in connection with products due to the increasing trend toward managed healthcare, including the increasing influence of health maintenance organizations and additional legislative changes. The downward pressure on healthcare costs in general, particularly prescription products, has and is expected to continue to increase in the future. As a result, profitability of cytisinicline, if any, may be more difficult to achieve even if regulatory approval is received.

The containment of health care costs has become a priority of federal and state governments and the prices of drug products have been a focus in this effort. For example, there have been several recent U.S. Congressional inquiries and proposed bills designed to, among other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drugs. We expect that federal, state and local governments in the United States will continue to consider legislation directed at lowering the total cost of health care. Individual states in the United States have increasingly passed legislation and implemented regulations designed to control pharmaceutical product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. In December

40

2020, the U.S. Supreme Court held unanimously that federal law does not preempt the states’ ability to regulate pharmaceutical benefit managers and other members of the health care and pharmaceutical supply chain, an important decision that may lead to further and more aggressive efforts by states in this area.

It is uncertain whether and how future legislation or regulatory changes, to the ACA and otherwise, could affect prospects for our product candidates or what actions third-party payors may take in response to any such health care reform proposals or legislation. Adoption of price controls and cost containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and measures reforms may prevent or limit our ability to generate revenue, attain profitability or commercialize our product candidates. Currently, the ACA and other federal laws and rules require most health insurance plans in the United States to cover some level of tobacco cessation treatments, including smoking cessation counseling and medications. If these provisions are repealed, in whole or in part, our business, financial condition, or results of operations could be negatively affected.

Failure by us or a commercial partner to obtain timely or adequate coverage and pricing for our products, if approved, or obtaining such coverage and pricing at unfavorable levels, could materially adversely affect our business, financial conditions, results of operations and prospects.

Sopharma may breach its supply agreement with us and sell cytisinicline into our territories or permit third parties to export cytisinicline into our territories and negatively affect our commercialization efforts of our products in our territories.

We are currently dependent on the exclusivity provisions of our supply agreement with Sopharma to conduct our business and to prevent Sopharma from competing, directly and indirectly, with us in the United States and Western Europe. If Sopharma were to breach the exclusivity provisions of the supply agreement with us and sell or distribute cytisinicline directly into our territories or permit third parties to export cytisinicline into our territories, among other things, the increase in competition within our anticipated markets could have a material adverse effect on our business, results of operations and financial condition.

The illegal distribution and sale by third parties of counterfeit versions of cytisinicline, stolen products, or alternative third-party distribution and sale of cytisinicline could have a negative impact on our financial performance or reputation.

Cytisinicline is not eligible for composition of matter patents in the United States as it is a naturally occurring substance. As such, third parties are able to manufacture, sell or distribute cytisinicline without royalties or other payments to us and compete with our products in the United States and potentially worldwide and negatively impact our commercialization efforts of our products. We are aware of additional cytisinicline products approved in several European countries and we may not be able to block other third parties from launching generic versions of cytisinicline. Third parties may also sell or distribute cytisinicline as an herbal or homeopathic product. Other than regulatory exclusivity or other limitations, there may be little to nothing to stop these third parties from manufacturing, selling or distributing cytisinicline. Because we have no ability to set rigorous safety standards or control processes over third-party manufacturers, sellers or distributors of cytisinicline, excluding Sopharma, these formulations of cytisinicline may be unsafe or cause adverse effects to patients and negatively impact the reputation of cytisinicline as a safe and effective smoking cessation aid.

Third parties could illegally distribute and sell counterfeit versions of cytisinicline, especially on online marketplaces, which do not meet the rigorous manufacturing and testing standards under cGMP. Counterfeit products are frequently unsafe or ineffective, and may even be life-threatening. Counterfeit medicines may contain harmful substances, the wrong dose of the active pharmaceutical ingredient or no active pharmaceutical ingredients at all. However, to distributors and users, counterfeit products may be visually indistinguishable from the authentic version.

Reports of adverse reactions to counterfeit products, increased levels of counterfeiting, or unsafe cytisinicline products could materially affect patient confidence in our cytisinicline product. It is possible that adverse events caused by unsafe counterfeit or other cytisinicline products that we do not produce will mistakenly be attributed to our cytisinicline product. In addition, thefts of inventory that are not properly stored at warehouses, plants or while in-transit, and which are sold through unauthorized channels could adversely impact patient safety, our reputation, and our business. Public loss of confidence in the integrity in cytisinicline as a result of counterfeiting, theft, or improper manufacturing processes could have a material adverse effect on our business, results of operations, and financial condition.

41

It is illegal to sell unapproved prescription medicines in the United States. Sopharma’s cytisinicline brand is currently approved for sale in certain Central and Eastern European countries. Cytisinicline has not yet received a marketing approval from the FDA, and we intend to conduct the requisite clinical trials to obtain approval for the marketing of cytisinicline in the United States and in major global markets. We are aware that products purporting to be Sopharma’s cytisinicline brand are available, via third-party internet sites, for importation in the United States and other global markets. We have no control over the authenticity of products purchased through these sites, which may be counterfeit or sourced from distributors in Central and Eastern Europe without authorization to sell into the United States or EU.

We may attempt to form collaborations in the future with respect to cytisinicline, but we may not be able to do so, which may cause us to alter our development and commercialization plans.

We may attempt to form strategic collaborations, create joint ventures or enter into licensing arrangements with third parties with respect to our programs that we believe will complement or augment our existing business. We may face significant competition in seeking appropriate strategic collaborators, and the negotiation process to secure appropriate terms is time consuming and complex. We may not be successful in our efforts to establish such a strategic collaboration for cytisinicline on terms that are acceptable to us, or at all. This may be because cytisinicline may be deemed to be at too early of a stage of development for collaborative effort, our research and development pipeline may be viewed as insufficient, the competitive or intellectual property landscape may be viewed as too intense or risky, or cytisinicline’s patent protection insufficient, and/or third parties may not view cytisinicline as having sufficient potential for commercialization, including the likelihood of an adequate safety and efficacy profile.

Any delays in identifying suitable collaborators and entering into agreements to develop and/or commercialize cytisinicline could delay the development or commercialization of cytisinicline, which may reduce our competitiveness even if we reach the market. Absent a strategic collaborator, we would need to undertake development and/or commercialization activities at our own expense. If we elect to fund and undertake development and/or commercialization activities on our own, we may need to obtain additional expertise and additional capital, which may not be available to us on acceptable terms or at all. If we are unable to do so, we may not be able to develop our product candidate cytisinicline or bring it to market and our business may be materially and adversely affected.

We may not be successful in any efforts to identify, license, discover, develop, or commercialize additional product candidates.

Although a substantial amount of our effort will focus on clinical testing, approval, and potential commercialization of cytisinicline, our sole product candidate, the success of our business is also expected to depend in part upon our ability to identify, license, discover, develop, or commercialize additional product candidates. Research programs to identify new product candidates require substantial technical, financial, and human resources. We may focus our efforts and resources on potential programs or product candidates that ultimately prove to be unsuccessful. Our research programs or licensing efforts may fail to yield additional product candidates for clinical development and commercialization for a number of reasons, including but not limited to the following:

•our research or business development methodology or search criteria and process may be unsuccessful in identifying potential product candidates;

•we may not be able or willing to assemble sufficient resources to acquire or discover additional product candidates;

•our potential product candidates may not succeed in non-clinical or clinical testing;

•our potential product candidates may be shown to have harmful side effects or may have other characteristics that may make the products unmarketable or unlikely to receive marketing approval;

•competitors may develop alternatives that render our potential product candidates obsolete or less attractive;

•potential product candidates we develop may be covered by third parties’ patents or other exclusive rights;

•the market for a potential product candidate may change during our program so that such a product may become unreasonable to continue to develop;

•a potential product candidate may not be capable of being produced in commercial quantities at an acceptable cost, or at all; and

•a potential product candidate may not be accepted as safe and effective by patients, the medical community, or third-party payors.

If any of these events occur, we may be forced to abandon our development efforts for a program or programs, or we may not be able to identify, license, discover, develop, or commercialize additional product candidates, which would have a material adverse effect on our business, financial condition or results of operations and could potentially cause us to cease operations.

42

We are subject to U.S. and certain foreign export and import controls, sanctions, embargoes, anti-corruption laws, and anti-money laundering laws and regulations. Compliance with these legal standards could impair our ability to compete in domestic and international markets. We can face criminal liability and other serious consequences for violations that can harm our business.

We are subject to export control and import laws and regulations, including the U.S. Export Administration Regulations, U.S. Customs regulations, various economic and trade sanctions regulations administered by the U.S. Treasury Department’s Office of Foreign Assets Controls, the U.S. Foreign Corrupt Practices Act of 1977, as amended, the U.S. domestic bribery statute contained in 18 U.S.C. § 201, the U.S. Travel Act, the USA PATRIOT Act, and other state and national anti-bribery and anti-money laundering laws in the countries in which we conduct activities. Anti-corruption laws are interpreted broadly and prohibit companies and their employees, agents, contractors, and other partners from authorizing, promising, offering, or providing, directly or indirectly, improper payments or anything else of value to recipients in the public or private sector. We currently have an agreement with Sopharma to supply cytisinicline, and we may engage third parties for clinical trials outside of the United States, to sell our products abroad or provide other services in connection with commercialization, and/or to obtain necessary permits, licenses, patent registrations, and other regulatory approvals. We have direct or indirect interactions with officials and employees of government agencies or other organizations. We can be held liable for the corrupt or other illegal activities of our employees, agents, contractors, and other partners, even if we do not explicitly authorize or have actual knowledge of such activities. Any violations of the laws and regulations described above may result in substantial civil and criminal fines and penalties, imprisonment, the loss of export or import privileges, debarment, tax reassessments, breach of contract and fraud litigation, reputational harm, and other consequences.

Risks Related to our Intellectual Property

If we are unable to maintain effective proprietary rights for our product candidate or any future product candidates, we may not be able to compete effectively in our proposed markets.

We currently rely primarily on trade secret protection and on confidentiality agreements to protect proprietary know-how that is not patentable or that we elect not to patent, processes for which patents are difficult to enforce and any other elements of our product candidate discovery and development processes that involve proprietary know-how, information or technology that is not covered by patents. Trade secrets can be difficult to protect, however, and even where they are protected, they generally provide less intellectual property protection to the holder of the trade secret than to a holder of a patent. We seek to protect our proprietary technology and processes, in part, by entering into confidentiality agreements with our employees, consultants, scientific advisors, and contractors. We also seek to preserve the integrity and confidentiality of our data and trade secrets by maintaining physical security of our premises and physical and electronic security of our information technology systems. While we have confidence in these individuals, organizations and systems, agreements or security measures may be breached, and we may not have adequate remedies for any breach. In addition, our trade secrets may otherwise become known or be independently discovered by competitors.

Although we expect all of our employees and consultants to assign their inventions to us, and all of our employees, consultants, advisors, and any third parties who have access to our proprietary know-how, information, or technology to enter into confidentiality agreements, we cannot provide any assurances that all such agreements have been duly executed or that our trade secrets and other confidential proprietary information will not be disclosed or that competitors will not otherwise gain access to our trade secrets or independently develop substantially equivalent information and techniques. Misappropriation or unauthorized disclosure of our trade secrets could impair our competitive position and may have a material adverse effect on our business, financial condition or results of operations. Additionally, if the steps taken to maintain our trade secrets are deemed inadequate, we may have insufficient recourse against third parties for misappropriating the trade secret.

Third-party claims of intellectual property infringement may prevent or delay our development and commercialization efforts.

We are currently developing cytisinicline in treating nicotine dependence for smoking cessation in adults. Our commercial success depends in part on our ability to develop, manufacture, market and sell our product candidates and use our proprietary technology without infringing the patent rights of third parties. We are not aware of any patents or patent applications that would prevent the development, manufacture or marketing of cytisinicline for smoking cessation.

We are aware of U.S. and foreign patents and pending patent applications owned by third parties that cover certain other therapeutic uses of cytisinicline. We are currently monitoring these patents and patent applications. We may in the future pursue available proceedings in the United States and foreign patent offices to challenge the validity of these patents and patent applications. In addition, or alternatively, we may consider whether to seek to negotiate a license of rights to technology covered by one or more of such patents and patent applications for these certain additional therapeutic uses. If any third-party patents or patent applications cover our product candidates or technologies in other therapeutic uses, we may not be free to manufacture or market our product candidates for additional therapeutic uses, absent such a license, which may not be available to us on commercially reasonable terms, or at all.

43

It is also possible that we have failed to identify relevant third-party patents or applications. For example, applications filed before November 29, 2000 and applications filed after that date that will not be filed outside the United States remain confidential until patents issue. Moreover, it is difficult for industry participants, including us, to identify all third-party patent rights that may be relevant to our product candidates and technologies because patent searching is imperfect due to differences in terminology among patents, incomplete databases and the difficulty in assessing the meaning of patent claims. We may fail to identify relevant patents or patent applications or may identify pending patent applications of potential interest but incorrectly predict the likelihood that such patent applications may issue with claims of relevance to our technology. In addition, we may be unaware of one or more issued patents that would be infringed by the manufacture, sale or use of a current or future product candidate, or we may incorrectly conclude that a third-party patent is invalid, unenforceable or not infringed by our activities. Additionally, pending patent applications that have been published can, subject to specified limitations, be later amended in a manner that could cover our technologies, our product candidates or the use of our product candidates.

There have been many lawsuits and other proceedings involving patent and other intellectual property rights in the pharmaceutical industries, including patent infringement lawsuits, interferences, oppositions, and reexamination proceedings before the U.S. Patent and Trademark Office, or USPTO, and corresponding foreign patent offices. U.S. and foreign issued patents and pending patent applications, which are owned by third parties, exist in the fields in which we are developing our product candidate. As the biotechnology and pharmaceutical industries expand and more patents are issued, the risk increases that our product candidate may be subject to claims of infringement of the patent rights of third parties.

Parties making claims against us may obtain injunctive or other equitable relief, which could effectively block our ability to further develop and commercialize one or more of our product candidates. Defense of these claims, regardless of their merit, would involve substantial litigation expense and would be a substantial diversion of employee resources from our business. In the event of a successful claim of infringement against us, we may have to pay substantial damages, including treble damages and attorneys’ fees for willful infringement, pay royalties, redesign our infringing products or obtain one or more licenses from third parties, which may be impossible or require substantial time and monetary expenditure.

We intend to rely on patent rights for certain aspects of our product candidates and certain future product candidates. If we are unable to obtain or maintain an adequate proprietary position from this approach, we may not be able to compete effectively in our markets.

Although we rely or will rely in part on trade secret protection as part of our intellectual property rights strategies, we also intend to rely on patent rights to protect certain aspects of our technologies and upon the patent rights of third parties from which we license certain of our technologies.

We have sought to protect our proprietary position by filing patent applications in the United States and certain other countries around the world related to future product candidates. This process is expensive and time consuming, and we may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner or at all. It is also possible that we will fail to identify patentable aspects of our research and development output before it is too late to obtain patent protection.

The patent position of pharmaceutical companies generally is highly uncertain and involves complex legal and factual questions for which legal principles remain unsolved. The patent applications that we own may fail to result in issued patents with claims that cover our product candidates in the United States or in other foreign countries. There is no assurance that all potentially relevant prior art relating to our patent applications or our patents (once issued) have been found, which can invalidate a patent or prevent a patent from issuing from a pending patent application. Even if patents do successfully issue, and even if such patents cover our future product candidates, third parties may challenge their validity, enforceability, or scope, which may result in such patents being narrowed, found unenforceable or invalidated. Furthermore, even if they are unchallenged, our patents and patent applications may not adequately protect our intellectual property, provide exclusivity for our future product candidates, or prevent others from designing around our claims. Any of these outcomes could impair our ability to prevent competition from third parties, which may have an adverse impact on our business.

We cannot offer any assurances about which, if any, patents will issue, the breadth of any such patent or whether any issued patents will be found invalid and unenforceable or will be threatened by third parties. Any successful opposition to these patents or any other patents owned by or licensed to us after patent issuance could deprive us of rights necessary for the successful commercialization of any future product candidates that we may develop. Further, if we encounter delays in regulatory approvals, the period of time during which we could market a future product candidate under patent protection could be reduced.

44

If we cannot obtain and maintain effective protection of exclusivity from our regulatory efforts and intellectual property rights, including patent protection or data exclusivity, for our product candidates, we may not be able to compete effectively and our business and results of operations would be harmed.

Changes in patent law could diminish the value of patents in general, thereby impairing our ability to protect our product candidates.

Obtaining and enforcing patents in the biopharmaceutical industry involves both technological and legal complexity, and is therefore costly, time-consuming, and inherently uncertain. In addition, the United States has recently enacted and is currently implementing wide-ranging patent reform legislation. Recent U.S. Supreme Court rulings have narrowed the scope of patent protection available in certain circumstances and weakened the rights of patent owners in certain situations. In addition to increasing uncertainty with regard to our ability to obtain patents in the future, this combination of events has created uncertainty with respect to the value of patents once obtained, if any. Depending on decisions by the U.S. Congress, the federal courts and the USPTO, the laws and regulations governing patents could change in unpredictable ways that would weaken our ability to obtain new patents or to enforce our existing patents and patents that we might obtain in the future.

In Assoc. for Molecular Pathology v. Myriad Genetics, Inc., the U.S. Supreme Court held that certain claims to naturally occurring substances are not patentable. Cytisinicline is a naturally occurring product and is not patentable. Our intellectual property strategy involves novel formulations of cytisinicline and there is no guarantee that such patents will be issued or if issued, will be broad enough to prevent competitors from developing competing cytisinicline products. Although we do not believe that any patents that may issue from our pending patent applications directed at our product candidate, if issued in their currently pending forms, as well as patent rights licensed by us, will be found invalid based on this decision, we cannot predict how future decisions by the courts, the U.S. Congress or the USPTO may impact the value of our patent rights. There could be similar changes in the laws of foreign jurisdictions that may impact the value of our patent rights or our other intellectual property rights.

We may be subject to claims that our employees, consultants, or independent contractors have wrongfully used or disclosed confidential information of third parties or that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

We employ individuals who were previously employed at other biotechnology or pharmaceutical companies. Although we have written agreements and make every effort to ensure that our employees, consultants, and independent contractors do not use the proprietary information or intellectual property rights of others in their work for us, we may in the future be subject to any claims that our employees, consultants, or independent contractors have wrongfully used or disclosed confidential information of third parties. Litigation may be necessary to defend against these claims. If we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel, which could adversely impact our business. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction to management and other employees.

It is difficult and costly to protect our proprietary rights and as a result we may not be able to ensure their protection. In addition, patents have a limited lifespan and will eventually expire.

Market exclusivity awarded by the FDA upon the approval of an NDA is limited in scope and duration. Our commercial success will depend in part on obtaining, maintaining, enforcing, and defending against third‑party challenges, patent and trade secret protection for our current and future product candidates that we may develop, license or acquire, as well as the related manufacturing methods. We will be able to protect our technologies from unauthorized use by third parties to the extent that the technologies are covered by valid and enforceable patents or trade secrets.

The patent prosecution process is expensive and time consuming, and we may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner. It is also possible that we will fail to identify patentable aspects of our research and development output before it is too late to obtain patent protection. Moreover, should we enter into additional collaborations we may be required to consult with or cede control to collaborators regarding the prosecution, maintenance, and enforcement of our patent applications and patents. Therefore, these patents and patent applications may not be prosecuted and enforced in a manner consistent with the best interests of our business. The patent positions of pharmaceutical and biotechnology companies can be highly uncertain and involve complex legal and factual questions for which important legal principles remain unresolved. No consistent policy regarding the breadth of claims allowed in pharmaceutical or biotechnology patents has emerged to date in the United States. The patent situation outside the United States is even more uncertain. Changes in either the patent laws or in interpretations of patent laws in the United States and other countries may diminish the value of our intellectual property. Accordingly, we cannot predict the breadth of claims that may be allowed or enforced in our patents and patent applications or in

45

third‑party patents and patent applications. The degree of future protection for our proprietary rights is uncertain because legal means afford only limited protection and may not adequately protect our rights or permit us to gain or keep our competitive advantage. Moreover, the patent application process is also subject to numerous risks and uncertainties, and there can be no assurance that we or any of our future development partners will be successful in protecting any of our current or future product candidates that we may develop, license, or acquire by obtaining and defending patents. For example:

•we may not have been the first to conceive of and reduce to practice the inventions covered by each of our pending patent applications and issued patents;

•we may not have been the first to file patent applications for these inventions;

•others may independently develop similar or alternative technologies or duplicate any of our product candidates or technologies;

•it is possible that none of the pending patent applications will result in issued patents;

•the issued patents may not cover commercially viable active products, may not provide us with any competitive advantages, or may be successfully challenged by third parties;

•we may not develop additional proprietary technologies that are patentable;

•patents of others may have an adverse effect on our business;

•noncompliance with requirements of governmental patent agencies can result in abandonment or lapse of a patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction, potentially allowing competitors to enter the market earlier than would otherwise have been the case;

•our competitors, many of whom have substantially greater resources than we do and many of whom have made significant investments in competing technologies, may seek or may have already obtained patents that will limit, interfere with, or eliminate our ability to make, use, and sell our potential product candidates; or

•there may be significant pressure on the U.S. government and international governmental bodies to limit the scope of available patent protection both inside and outside the United States for disease treatments that prove successful, as a matter of public policy regarding worldwide health concerns.

Patents have a limited lifespan. In most countries, including the United States, the expiration of a patent is typically 20 years from the date that the application for the patent is filed. Various extensions of patent term may be available in particular countries; however, in all circumstances the life of a patent, and the protection it affords, has a limited term. If we encounter delays in obtaining regulatory approvals, the period of time during which we could market a product under patent protection could be reduced. We expect to seek extensions of patent terms where these are available in any countries where we are prosecuting patents. Such possible extensions include those permitted under the Drug Price Competition and Patent Term Restoration Act of 1984 in the United States, which permits a patent term extension of up to five years to cover an FDA‑approved product. The actual length of the extension will depend on the amount of patent term lost while the product was in clinical trials. However, the applicable authorities, including the USPTO and the FDA in the United States, and any equivalent regulatory authority in other countries, may not agree with our assessment of whether such extensions are available, and may refuse to grant extensions to our patents, or may grant more limited extensions than we request. If this occurs, our competitors may be able to take advantage of our investment in development and clinical trials by referencing our clinical and preclinical data, and then may be able to launch their product earlier than might otherwise be the case.

Obtaining and maintaining our patent protection depends on compliance with various procedural, documentary, fee payment, and other requirements imposed by governmental patent agencies, and our patent protection could be reduced or eliminated for noncompliance with these requirements.

The USPTO and various foreign governmental patent agencies require compliance with a number of procedural, documentary, fee payment, and other similar provisions during the patent prosecution process. Periodic maintenance fees, renewal fees, annuity fees, and various other governmental fees on patents or patent applications will be due to be paid to the USPTO and various patent agencies outside of the United States in several stages over the lifetime of the patents and applications. We have systems in place to remind us to pay these fees, and we employ and rely on reputable law firms and other professionals to effect payment of these fees to the USPTO and non-U.S. patent agencies for the patents and patent applications we own and those that we in‑license. We also employ reputable law firms and other professionals to help us comply with the various documentary and other procedural requirements with respect to the patents and patent applications that we own and those that we in‑license. In some cases, an inadvertent lapse can be cured by payment of a late fee or by other means in accordance with the applicable rules. However, there are situations in which noncompliance can result in abandonment or lapse of the patent or patent application, resulting in partial or complete loss of patent rights in the

46

relevant jurisdiction. In such an event, our competitors might be able to enter the market and this circumstance would have a material adverse effect on our business.

We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which could be expensive, time consuming, and unsuccessful.

Competitors may infringe our issued patents, our in-licensed patents, or other intellectual property that we own or in-license. To counter infringement or unauthorized use, we may be required to file infringement claims, which can be expensive and time consuming. Any claims we assert against perceived infringers could provoke these parties to assert counterclaims against us alleging that we infringe their patents. In addition, in a patent infringement proceeding, a court may decide that a patent of ours is invalid or unenforceable, in whole or in part; construe the patent’s claims narrowly; or refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in any litigation proceeding could put one or more of our patents at risk of being invalidated or interpreted narrowly. Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation.

Most of our competitors are larger than we are and have substantially greater resources than we do. They are, therefore, likely to be able to sustain the costs of complex patent litigation longer than we could. In addition, the uncertainties associated with litigation could have a material adverse effect on our ability to raise the funds necessary to continue our clinical trials, continue our internal research programs, in-license needed technology, or enter into development partnerships that would help us bring our product candidates to market.

We or our licensors may not be able to protect our intellectual property rights throughout the world.

Filing, prosecuting, and defending patent applications and patents on product candidates in all countries throughout the world would be prohibitively expensive, and our intellectual property rights in some countries outside the United States can be less extensive than those in the United States. In addition, the laws of some foreign countries do not protect intellectual property rights to the same extent as federal and state laws in the United States. Consequently, we may not be able to prevent third parties from practicing our inventions in all countries outside the United States, or from selling or importing products made using our inventions in and into the United States or other jurisdictions. Competitors may use our technologies in jurisdictions where we have not obtained patent protection to develop their own products and further, may export otherwise infringing products to territories where we have patent protection, but where enforcement rights are not as strong as those in the United States. These products may compete with our product candidates and our patents or other intellectual property rights may not be effective or sufficient to prevent them from competing.

Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The legal systems of certain countries do not favor the enforcement of patents and other intellectual property protection, which could make it difficult for us to stop the infringement of our patents generally. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of our business, could put our patents at risk of being invalidated or interpreted narrowly and our patent applications at risk of not issuing, and could provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate and the damages or other remedies awarded, if any, may not be commercially meaningful. Accordingly, our efforts to enforce our or our licensors’ intellectual property rights around the world may be inadequate to obtain a significant commercial advantage from the intellectual property that we develop or license.

Risks Related to Our Common Stock

The price for our common stock is volatile.

The market prices for our common stock and that of pharmaceutical, biotechnology and other life sciences companies have historically been particularly volatile. Some of the factors that may cause the market price of our common stock to fluctuate include:

•our ability to raise additional capital, the terms of such capital, and our ability to continue as a going concern;

•the ability of us or our partners to develop cytisinicline and other product candidates and conduct clinical trials that demonstrate such product candidates are safe and effective;

•the ability of us or our partners to obtain regulatory approvals for cytisinicline or other product candidates, and delays or failures to obtain such approvals;

47

•failure of any of our product candidates to demonstrate safety and efficacy, receive regulatory approval and achieve commercial success;

•the ability of us to establish a commercial infrastructure and complete other pre-commercialization and commercialization tasks to necessary to successfully commercialize cytisinicline should it be approved by the FDA;

•failure to maintain our existing third-party license, manufacturing and supply agreements;

•failure by us or our licensors to prosecute, maintain, or enforce our intellectual property rights;

•changes in laws or regulations applicable to our candidates;

•any inability to obtain adequate supply of product candidates or the inability to do so at acceptable prices;

•adverse regulatory authority decisions;

•introduction of new or competing products by our competitors;

•failure to meet or exceed financial and development projections we may provide to the public;

•the perception of the pharmaceutical industry by the public, legislatures, regulators and the investment community;

•announcements of significant acquisitions, strategic partnerships, joint ventures, or capital commitments by us or our competitors;

•disputes or other developments relating to proprietary rights, including patents, litigation matters, and our ability to obtain intellectual property protection for our technologies;

•additions or departures of key personnel;

•significant lawsuits, including intellectual property or stockholder litigation;

•if securities or industry analysts do not publish research or reports about us, or if they issue an adverse or misleading opinion regarding our business and stock;

•changes in federal or global health policies, legislation or the review and oversight functions of federal health regulatory bodies;

•changes in the market valuations of similar companies;

•general market or macroeconomic conditions and geopolitical conditions, including fluctuating inflation, interest and tariff rates, increased volatility in the debt and equity markets, instability in the global banking system, global health crises and pandemics and geopolitical conflict, and their potentially material adverse impact on our business and the execution of our preclinical studies and clinical trials;

•sales of our common stock us or our stockholders in the future;

•trading volume of our common stock;

•adverse publicity relating to our markets generally, including with respect to other products and potential products in such markets;

•changes in the structure of healthcare payment systems;

•period-to-period fluctuations in our financial results; and

•tweets or other social media posts related to our market and industry.

Moreover, the stock markets in general have experienced substantial volatility that has often been unrelated to the operating performance of individual companies. These broad market fluctuations may also adversely affect the trading price of our common stock. An increase in the market price of our common stock, which is uncertain and unpredictable, may be the sole source of gain from an investment in our common stock. An investment in our common stock may not be appropriate for investors who require dividend income. We have never declared or paid cash dividends on our capital stock and do not anticipate paying any cash dividends on our capital stock in the foreseeable future. We currently intend to retain all available funds and any future earnings to fund the development and growth of our business. As a result, capital appreciation, if any, of our common stock will be the sole source of gain for stockholders for the foreseeable future. Accordingly, an investment in our common stock may not be appropriate for investors who require dividend income or investors who are not prepared to bear a significant risk of losses from such an investment.

48

A significant portion of our total outstanding shares of common stock may be sold into the public market at any point, which could cause the market price of our common stock to drop significantly, even if our business is doing well, and result in significant dilution to our stockholders.

Sales of a substantial number of shares of our common stock in the public market could occur at any time, either by us or our stockholders. These sales, or the perception in the market that we or holders of a large number of shares intend to sell shares, could reduce the market price of our common stock. Our outstanding shares of common stock may be freely sold in the public market at any time to the extent permitted by Rules 144 and 701 under the Securities Act of 1933, as amended, or the Securities Act, or to the extent such shares have already been registered under the Securities Act and are held by non-affiliates.

In July 2024, we entered into the New Debt Agreement with the Lenders for term loans of up to $20.0 million. Subject to certain terms and conditions, the Lenders may convert all or any part of the outstanding New Convertible Term Loan and accrued and unpaid interest at any time prior to maturity into shares of our common stock at a conversion price equal to (i) for the first tranche of $10.0 million, $7.00 per share, subject to customary anti-dilution adjustments and (ii) for the second and third tranches of $5.0 million each, the greater of (x) $4.854 per share, subject to customary anti-dilution adjustments, and (y) the lower of (a) 150% of the average of the closing sale price of our common stock during the 10 trading days preceding the effective date of such tranche and (b) 150% of the closing sale price of our common stock on the trading day immediately preceding the effective date of such tranche. Additionally, all outstanding amounts under the New Convertible Term Loan, including accrued and unpaid interest, will mandatorily convert into shares of our common stock, at the conversion price, on such date, if any, when the closing price per share of our common stock has been (i) for the first tranche, equal to or greater than $24.00 for 30 consecutive trading days prior to such date and (ii) for the second and third tranches, three times the applicable conversion price for such tranche, in each case, for the 30 consecutive trading days prior to such date. We are aware that there can be no assurance that the New Convertible Term Loan will be available to us for borrowing nor whether the Lender will be willing to work with us on any modifications to the current New Convertible Term Loan or the New Debt Agreement.

As of December 31, 2024, there were 2,139,414 shares of our common stock subject to outstanding options and 1,283,750 subject to outstanding restricted stock units, almost all of which have been registered under the Securities Act on Form S-8. The shares so registered can be freely sold in the public market after being issued to the option holder upon exercise, except to the extent they are held by an affiliate of ours, in which case such shares will become eligible for sale in the public market as permitted by Rule 144 under the Securities Act. Furthermore, as of December 31, 2024, there were approximately 17,521,398 shares of our common stock subject to outstanding warrants to purchase common stock, with a weighted average exercise price of $5.15 per share, and 142,857 shares of our common stock subject to outstanding pre-funded warrants, with an exercise price of $0.001 per share. To the extent any of these warrants are exercised, the shares underlying these warrants may be immediately sold in the public market. In February 2024, we announced the sale and issuance of warrants to purchase up to 13,086,151 shares of common stock (or pre-funded warrants), with an exercise price of $4.906 per share (or $4.905 per pre-funded warrant), in a concurrent private placement with the sale of 13,086,151 shares of common stock sold in a registered direct offering. We registered the shares underlying these warrants (or pre-funded warrants) for resale on Form S-3, which was declared effective on May 6, 2024. If these shares are issued upon exercise of the warrants (or pre-funded warrants), they may be immediately sold in the public market.

The sale of additional shares of our common stock, the conversion of the New Convertible Term Loan into shares of our common stock, the exercise of any of our outstanding warrants, the exercise of any of our outstanding options, or the settlement of our restricted stock units would have a dilutive impact on our existing stockholders and could cause the market price of our common stock to decline significantly. Sales of our common stock, the conversion of the New Convertible Term Loan, the exercise of any of our outstanding warrants, the exercise of any of our outstanding options, the settlement of our restricted stock units or the perception that such events will occur, could also encourage short sales by third parties, which could contribute to the further decline of the price of our common stock. Additionally, the sale of a substantial number of shares of our common stock, the conversion of the New Convertible Term Loan, the exercise of any of our outstanding warrants, the exercise of any of our outstanding options, the settlement of our restricted stock units or the perception that such events will occur, could make it more difficult for us to sell equity or equity-related securities in the future at a time and at a price that we might otherwise wish.

In addition, in the future, we plan to raise additional capital through private placements or public offerings of our equity or debt securities. We cannot be certain that additional funding will be available on acceptable terms, if at all. To the extent that we raise additional financing by issuing equity securities, we may do so at a price per share that represents a discount to the then-current per share trading price of our common stock and our stockholders may experience significant dilution. Any debt financing, if available, may involve restrictive covenants, such as limitations on our ability to incur additional indebtedness, limitations on our ability to acquire or license intellectual property rights and other operating restrictions that could adversely affect our ability to conduct our business.

49

If we raise additional capital, the terms of the financing transactions may cause dilution to existing stockholders or contain terms that are not favorable to us.

In the future, we plan to raise additional capital through private placements or public offerings of our equity or debt securities. We cannot be certain that additional funding will be available on acceptable terms, if at all. To the extent that we raise additional financing by issuing equity securities, we may do so at a price per share that represents a discount to the then-current per share trading price of our common stock and our stockholders may experience significant dilution. Any debt financing, if available, may involve restrictive covenants, such as limitations on our ability to incur additional indebtedness, limitations on our ability to acquire or license intellectual property rights and other operating restrictions that could adversely affect our ability to conduct our business.

We are a smaller reporting company and we cannot be certain if the reduced disclosure requirements applicable to smaller reporting companies will make our common stock less attractive to investors.

We are currently a “smaller reporting company” as defined in the Exchange Act, and are thus allowed to provide simplified executive compensation disclosures in our filings, are exempt from the provisions of Section 404(b) of the Sarbanes-Oxley Act requiring that an independent registered public accounting firm provide an attestation report on the effectiveness of internal control over financial reporting and have certain other decreased disclosure obligations in our SEC filings. We cannot predict whether investors will find our common stock less attractive because of our reliance on any of these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may be more volatile.

If equity research analysts do not publish research or reports, or publish unfavorable research or reports, about us, our business, or our market, our stock price and trading volume could decline.

The trading market for our common stock is influenced by the research and reports that equity research analysts publish about us and our business. We do not have any control over the equity research analysts that provide research coverage of our common stock or the content and opinions included in their reports. The price of our stock could decline if one or more equity research analysts downgrades our stock or issue other unfavorable commentary or research. If one or more equity research analysts ceases coverage of our company or fails to publish reports on us regularly, demand for our stock could decrease, which in turn could cause our stock price or trading volume to decline.

General Risk Factors

We are at risk of securities class action litigation.

In the past, securities class action litigation has often been brought against a company following a decline in the market price of its securities, including in circumstances where such declines occur in close proximity to the announcement of clinical trial results. Additionally, our stock price and those of other biotechnology and biopharmaceutical companies have experienced significant stock price volatility in recent years. If we face such litigation, it could result in substantial costs and a diversion of management’s attention and resources, which could harm our business.

We incur costs and demands upon management as a result of complying with the laws and regulations affecting public companies.

We incur significant legal, accounting and other expenses associated with public company reporting requirements. We also incur costs associated with corporate governance requirements, including requirements under the Sarbanes-Oxley Act, as well as rules implemented by the SEC and The Nasdaq Capital Market. These rules and regulations impose significant legal and financial compliance costs and make some activities more time-consuming and costly. In addition, it may be difficult for us to attract and retain qualified individuals to serve on our board of directors or as executive officers, which may adversely affect investor confidence and could cause our business or stock price to suffer.

Shareholder activists could cause a disruption to our business.

An activist investor may indicate disagreement with our strategic direction or capital allocation policies and may seek representation on our board of directors. Our business, operating results or financial condition could be adversely affected and may result in, among other things:

•increased operating costs, including increased legal expenses, insurance, administrative expenses and associated costs incurred in connection with director election contests;

50

•uncertainties as to our future direction, which could result in the loss of potential business opportunities and could make it more difficult to attract, retain, or motivate qualified personnel, and strain relationships with investors and customers; and

•reduction or delay in our ability to effectively execute our current business strategy and to implement new strategies.

Anti-takeover provisions under Delaware law could make an acquisition of us more difficult and may prevent attempts by our stockholders to replace or remove our management.

Because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporate Law, which prohibits stockholders owning in excess of 15% of our outstanding voting stock from merging or combining with us. Although we believe these provisions collectively will provide for an opportunity to receive higher bids by requiring potential acquirors to negotiate with our board of directors, they would apply even if the offer may be considered beneficial by some stockholders. In addition, these provisions may frustrate or prevent any attempts by our stockholders to replace or remove then current management by making it more difficult for stockholders to replace members of the board of directors, which is responsible for appointing the members of management.

Our bylaws provide that the Court of Chancery of the State of Delaware is the exclusive forum for substantially all disputes between us and our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers or other employees.

Our bylaws provide that the Court of Chancery of the State of Delaware is the sole and exclusive forum for any derivative action or proceeding brought on our behalf, any action asserting a breach of fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders, any action asserting a claim against us arising pursuant to any provisions of the Delaware General Corporation Law, our certificate of incorporation or our bylaws, or any action asserting a claim against us that is governed by the internal affairs doctrine. The choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers or other employees, which may discourage such lawsuits against us and our directors, officers and other employees. If a court were to find the choice of forum provision contained in the bylaws to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions.

Failure to maintain effective internal control over financial reporting could have a material adverse effect on our reputation, results of operations and financial condition.

Effective internal control over financial reporting is necessary for us to provide reliable financial reports, prevent fraud and operate successfully as a public company. Any failure to execute on our internal controls and continue to maintain effective internal controls, to timely implement any necessary additional improvement to our internal controls or to effect remediation of any future material weakness or significant deficiency could, among other things, result in losses from fraud or error, harm our reputation or cause investors to lose confidence in our reported financial information, all of which could have a material adverse effect on our reputation, results of operations, or financial condition.

Management reviews and updates our systems of internal controls and procedures, as appropriate. Any system of controls is based in part on certain assumptions and can provide only reasonable, not absolute, assurances that the objectives of the system are met. Any failure or circumvention of our controls and procedures or failure to comply with regulations related to controls and procedures could have a material adverse effect on our reputation, results of operations and financial condition.

Because our merger resulted in an ownership change under Section 382 of the U.S. Internal Revenue Code for OncoGenex, pre-merger net operating loss carryforwards and certain other tax attributes are now subject to limitations.

If a corporation undergoes an “ownership change” within the meaning of Section 382 of the U.S. Internal Revenue Code, the corporation’s net operating loss carryforwards and certain other tax attributes arising from before the ownership change are subject to limitations on use after the ownership change. In general, an ownership change occurs if there is a cumulative change in the corporation’s equity ownership by certain stockholders that exceeds fifty percentage points over a rolling three-year period. Similar rules may apply under state tax laws. Our 2017 merger involving OncoGenex and Achieve Life Sciences, Inc. resulted in an ownership change for OncoGenex and, accordingly, OncoGenex’s net operating loss carryforwards and certain other tax attributes will be subject to limitations on their use after the merger. Additional ownership changes in the future could result in additional limitations on the combined organization’s net operating loss carryforwards. Consequently, even if we achieve profitability, we may not be able to utilize a material portion of our net operating loss carryforwards and other tax attributes, which could have a material adverse effect on cash flow and results of operations.

51

U.S. federal tax reform and changes in other tax laws could increase our tax burden and adversely affect our business and financial condition.

In December 2017, the U.S. government enacted comprehensive tax legislation, the Tax Cuts and Jobs Act of 2017, significantly reforming the Internal Revenue Code of 1986, as amended. These changes include, among others, (i) a permanent reduction to the corporate income tax rate, (ii) a partial limitation on the deductibility of business interest expense, (iii) a shift of the U.S. taxation of multinational corporations from a tax on worldwide income to a territorial system (along with certain rules designed to prevent erosion of the U.S. income tax base) and (iv) a one-time tax on accumulated offshore earnings held in cash and illiquid assets, with the latter taxed at a lower rate.

In addition, beginning in 2022, tax legislation requires research and experimental expenditures to be capitalized and amortized ratably over a five-year period. Any such expenditures attributable to research conducted outside the United States must be capitalized and amortized over a 15-year period.

Notwithstanding the reduction in the corporate income tax rate, the overall impact of this tax reform is uncertain, and our business and financial condition could be adversely affected. Furthermore, it is uncertain if and to what extent various states will conform to the enacted federal tax law or any newly enacted federal legislation. In addition, new legislation or regulation which could affect our tax burden, or that of our suppliers, could be enacted by any governmental authority, including foreign tax authorities. We cannot predict the timing or extent of such tax related developments which could have a negative impact on our financial results. Additionally, we use our best judgment in attempting to quantify and reserve for these tax obligations. However, a challenge by a taxing authority, our ability to utilize tax benefits such as carryforwards or tax credits, or a deviation from other tax related assumptions could have a material adverse effect on our business, results of operations, or financial condition.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 1C. CYBERSECURITY

Cybersecurity Risk Management and Strategy

Our process for managing cybersecurity risk is comprised of technologies, controls, and procedures designed to detect, assess, and manage threats and control access. We utilize a variety of systems, software, and services including firewalls, network and endpoint monitoring, anti-malware, detection and response, patch management, and backups to mitigate, identify, analyze, and respond to identified vulnerabilities and incidents in a timely manner.

We evaluate our security posture on an ongoing basis via vulnerability scans, penetration testing, and threat intelligence monitoring. We periodically conduct third-party security assessments and regularly evaluate our processes against industry standard security frameworks. We conduct regular security training to elevate awareness and foster a security conscious culture among all employees.

We leverage third party service providers and solutions in many aspects of our operations. Our vendor management and oversight procedures include assessment of cyber security risk.

We do not believe there are any currently known cybersecurity risks that are reasonably likely to materially impact our business strategy, operations, or financial condition. If we were to experience a material cybersecurity incident in the future, such incident may have an adverse effect, including on our business operations, operating results, or financial condition. For more information regarding cybersecurity risks that we face and the related potential impacts on our business, see the risk factor titled “Our internal computer systems, or those of our third-party collaborators or other service providers, may fail or suffer security breaches and cyber-attacks, which could result in a material disruption of our development programs.”

Cybersecurity Governance

Cybersecurity is an important part of our risk management processes and an area of increasing focus for our board of directors, or Board, and management.

The Audit Committee of our Board, or Audit Committee, is responsible for the oversight of risks from cybersecurity threats. At least annually, the Audit Committee receives an overview from management of our cybersecurity threat risk management and strategy processes covering topics such as data security posture, results from third-party assessments, progress towards pre-determined risk-mitigation-related goals, our incident response plan, and material cybersecurity threat risks or incidents and developments, as well as the steps management has taken to respond to such risks. Members of the Audit Committee are also encouraged to regularly engage in

52

ad hoc conversations with management on cybersecurity-related news events and discuss any updates to our cybersecurity risk management and strategy programs. Potential material cybersecurity threat risks are also considered during Board meeting discussions of important matters like risk management, business continuity planning, and other relevant matters.

Our cybersecurity risk assessment and management processes are implemented and maintained by certain members of our management, including our Senior Director of Information Technology who has served in various roles managing information technology and information security for over twenty-five years and reports directly to the Chief Financial Officer.

Management is also responsible for hiring appropriate personnel, integrating cybersecurity considerations into our overall risk management strategy, and for communicating key priorities to employees, as well as for approving budgets, helping prepare for cybersecurity incidents, approving cybersecurity processes, and reviewing security assessments and other security-related reports.

Our cybersecurity incident response and vulnerability management processes involve management, who participates in our disclosure controls and procedures. Our cybersecurity incident response and vulnerability management processes are designed to escalate certain cybersecurity incidents and vulnerabilities to members of management depending on the circumstances, including work with the company’s incident response team to help us mitigate and remediate cybersecurity incidents of which they are notified. In addition, the company’s incident response processes include reporting to the Audit Committee for certain cybersecurity incidents.

Management is involved with our efforts to prevent, detect, and mitigate cybersecurity incidents by overseeing preparation of cybersecurity policies and procedures, testing of incident response plans, and engagement of vendors to conduct penetration tests. Management participates in cybersecurity incident response efforts by being a member of the incident response team and helping direct our response to cybersecurity incidents.

ITEM 2. PROPERTIES

We have business offices located in Bothell, Washington and Vancouver, British Columbia.

On November 19, 2018, we entered into a lease agreement for our office space in Vancouver, British Columbia, which commenced on February 1, 2019, and had a four-year term. On December 16, 2022, we entered into an agreement to extend the lease for another two-year term, which commenced on February 1, 2023. On December 9, 2024, we entered into an agreement to extend the lease for another two-year term, which commenced on February 1, 2025. Pursuant to this lease, we rent approximately 2,367 square feet of office space. The annual rent is approximately $0.1 million.

On November 9, 2023, we entered into a lease agreement for our office space in Bothell, Washington, which commenced on March 1, 2024, and had a one-year term. On October 24, 2024, we entered into an agreement to extend the lease for a six month term, which commenced on March 1, 2025. The annual rent is approximately $15,800.

We believe that the facilities we currently lease are sufficient for our anticipated near-term needs.

ITEM 3. LEGAL PROCEEDINGS

From time to time, we may be involved in litigation relating to claims arising out of our operations in the normal course of business. We are not currently a party to any legal proceedings, the adverse outcome of which, in management’s opinion, individually or in the aggregate, would have a material adverse effect on the results of our operations or financial position. There are no material proceedings to which any director, officer or any of our affiliates, any owner of record or beneficially of more than five percent of any class of our voting securities, or any associate of any such director, officer, our affiliates, or security holder, is a party adverse to us or our consolidated subsidiary or has a material interest adverse thereto.

ITEM 4. MINE SAFETY DISCLOSURE

Not applicable.

53

PART II

ITEM 5. MARKET FOR THE REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Our common stock first began trading on the Nasdaq National Market under the symbol “SNUS” on October 12, 1995. In connection with a corporate transaction and name change, our common stock commenced trading on the Nasdaq Capital Market under the stock symbol “OGXI”, effective August 21, 2008. Following the completion of a corporate transaction and name change, our common stock commenced trading on the Nasdaq Capital Market under the stock symbol “ACHV”, effective August 2, 2017.

No cash dividends have been paid on our common stock, and we do not anticipate paying any cash dividends in the foreseeable future. As of March 10, 2025, there were approximately 11 stockholders of record. A substantially greater number of holders of our common stock are “street name” or beneficial holders, whose shares of record are held by banks, brokers, and other financial institutions.

The information required by this item regarding equity compensation plan information is set forth in Part III, Item 12 of this Annual Report on Form 10-K.

No purchases of equity securities during the year ended December 31, 2024 were made by us or on our behalf.

ITEM 6. RESERVED

54

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of our financial condition and results of operations should be read together with our consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K. In addition to historical financial information, the following discussion contains forward-looking statements based upon current expectations that involve risks and uncertainties. These statements are often identified by the use of words such as “may,” “will,” “expect,” “believe,” “anticipate,” “intend,” “could,” “estimate,” or “continue,” and similar expressions or variations. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of various factors, including but not limited to those discussed in the section titled “Risk Factors” and in other parts of this Annual Report on Form 10-K. A discussion and analysis of our financial condition, results of operations, and cash flows for the year ended December 31, 2023 compared to the year ended December 31, 2022 is included in Item 7 of Part II, “Management's Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC on March 28, 2024.

Overview

We are a late-stage clinical specialty pharmaceutical company with a sole mission to address the global nicotine dependence epidemic in combustible cigarette and e-cigarette usage through the development and commercialization of cytisinicline. There are an estimated 29 million adults in the United States alone who smoke combustible cigarettes and an estimated 11 million adults in the United States who utilize e-cigarettes. Tobacco use is currently the leading cause of preventable death and is responsible for more than eight million deaths worldwide and nearly half a million deaths in the United States annually. More than 87% of lung cancer deaths, 61% of all pulmonary disease deaths, and 32% of all deaths from coronary heart disease are attributable to smoking and exposure to secondhand smoke.

While nicotine e-cigarettes are thought to be less harmful than combustible cigarettes, they remain highly addictive and can deliver harmful chemicals which can cause lung injury or cardiovascular disease. In 2024, 1.6 million high school and middle school students reported using e-cigarettes. Research shows adolescents who have used e-cigarettes are seven times more likely to become smokers one year later compared to those who have never used e-cigarettes. Recently, the U.S. Food and Drug Administration, or FDA, granted Breakthrough Therapy Designation for cytisinicline for nicotine e-cigarette, or vaping, cessation. Breakthrough Therapy Designation is a process that expedites the development and review of new drugs and biologics that are intended to treat serious or life-threatening conditions and have preliminary clinical evidence indicating substantial improvement over existing therapies. Currently, there are no FDA approved drug therapies indicated specifically as an aid to nicotine e-cigarette cessation. We believe cytisinicline represents a unique opportunity to significantly impact global health by addressing the considerable unmet need among millions of smokers and e-cigarettes users.

Cytisinicline is a plant-based alkaloid with a high binding affinity to the nicotinic acetylcholine receptor. It is believed to work in treating nicotine dependence for smoking and e-cigarette cessation by interacting with nicotine receptors in the brain by reducing the severity of withdrawal symptoms, and reducing the reward and satisfaction associated with nicotine products. Cytisinicline is an investigational product candidate being developed for treatment of nicotine dependence and has not been approved by the FDA for any indication in the United States.

We believe cytisinicline represents a unique opportunity to significantly impact global health by addressing the considerable unmet need among millions of smokers and e-cigarettes users. If approved by the FDA, it may become one of the first new prescription medicines in nearly two decades aimed at aiding individuals in overcoming nicotine dependence. We believe cytisinicline is differentiated from existing smoking cessation treatments given its combination of efficacy, well-tolerated safety profile, and a shorter therapy duration, as demonstrated in clinical trials.

We have no products approved for commercial sale and have not generated any revenue from product sales to date. We have never been profitable and have incurred operating losses in each year since inception. Our net loss was $39.8 million for the year ended December 31, 2024. As of December 31, 2024, we had an accumulated deficit of $205.6 million, cash, cash equivalents and marketable securities balance of $34.4 million and a positive working capital balance of $29.8 million. During the year ended December 31, 2024, net cash used in operations was $29.8 million.

Substantial doubt exists as to our ability to continue as a going concern. Our ability to continue as a going concern is subject to material uncertainty and dependent on our ability to obtain additional financing. For additional information, see the section titled “—Liquidity, Capital Resources and Going Concern.”

55

License & Supply Agreements

Sopharma License and Supply Agreements

We are party to a license agreement, or the Sopharma License Agreement, and a supply agreement, or the Sopharma Supply Agreement, with Sopharma. Pursuant to the Sopharma License Agreement, we were granted access to all available manufacturing, efficacy and safety data related to cytisinicline, as well as a granted patent in several European countries related to new oral dosage forms of cytisinicline providing enhanced stability. Additional rights granted under the Sopharma License Agreement include the exclusive use of, and the right to sublicense, certain cytisinicline trademarks in all territories described in the Sopharma License Agreement. Under the Sopharma License Agreement, we agreed to pay a nonrefundable license fee. In addition, we agreed to make certain royalty payments equal to a mid-single digit percentage of all net sales of cytisinicline products in our territory during the term of the Sopharma License Agreement, including those sold by a third party pursuant to any sublicense which may be granted by us. To date, any amounts paid to Sopharma pursuant to the Sopharma License Agreement have been immaterial.

Share Purchase Agreement

In May 2015, we entered into a Share Purchase Agreement with Sopharma to acquire 75% of the outstanding shares of Extab Corporation for $2.0 million in cash and $2.0 million in a deferred payment, contingent on regulatory approval of cytisinicline by the FDA or the European Medicines Agency, or EMA. The fair value of the contingent consideration on the acquisition date was nil. The contingent consideration liability is measured at fair value in our financial statements,

As of December 31, 2024, the fair value of the contingent consideration was estimated to be $1.1 million as compared to $0.5 million as of December 31, 2023. (see Note 2 "Significant Accounting Policies, Sopharma Share Purchase Agreement Contingent Consideration" in the accompanying consolidated Financial Statements). We recognized a loss of $0.6 million for the year ended December 31, 2024.

University of Bristol License Agreement

In July 2016, we entered into a license agreement with the University of Bristol, or the University of Bristol License Agreement. Under the University of Bristol License Agreement, we received exclusive and nonexclusive licenses from the University of Bristol to certain patent and technology rights resulting from research activities into cytisinicline and its derivatives, including a number of patent applications related to novel approaches to cytisinicline binding at the nicotinic receptor level.

In consideration of rights granted by the University of Bristol, we paid a nominal license fee and agreed to pay amounts of up to $3.2 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones resulting from activities covered by the University of Bristol License Agreement. Additionally, if we successfully commercialize any product candidates subject to the University of Bristol License Agreement, we are responsible for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products.

On January 22, 2018, we and the University of Bristol entered into an amendment to the University of Bristol License Agreement. Pursuant to the amended University of Bristol License Agreement we received exclusive rights for all human medicinal uses of cytisinicline across all therapeutic categories from the University of Bristol from research activities into cytisinicline and its derivatives. In consideration of rights granted by the amended University of Bristol License Agreement, we paid an initial amount of $37,500 and agreed to pay additional amounts of up to $1.7 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones, in addition to amounts under the original University of Bristol License Agreement. Additionally, if we successfully commercialize any product candidate subject to the amended University of Bristol License Agreement or to the original University of Bristol License Agreement, we will be responsible for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products. Through December 31, 2024, we have paid the University of Bristol $125,000 pursuant to the University of Bristol License Agreement.

Research and Development Expenses

Research and development, or R&D, expenses consist primarily of costs for clinical trials, manufacture of product, personnel costs, milestone payments to third parties, facilities, regulatory activities, non-clinical studies and allocations of other R&D-related costs. External expenses for clinical trials include fees paid to clinical research organizations, clinical trial site costs and patient treatment costs.

56

We manage our clinical trials through contract research organizations and independent medical investigators at our sites and at hospitals and expect this practice to continue. Due to our ability to utilize resources across several projects, we do not record or maintain information regarding the indirect operating costs incurred for our R&D programs on a program-specific basis. In addition, we believe that allocating costs on the basis of time incurred by our employees does not accurately reflect the actual costs of a project.

The process of conducting clinical trials and non-clinical studies necessary to obtain regulatory approval is costly and time consuming and we may never succeed in achieving marketing approval for cytisinicline. (See “Item 1A. Risk Factors—Risks Related to the Development of Our Product Candidate Cytisinicline.”)

Successful development of cytisinicline is highly uncertain and may not result in an approved product. We cannot estimate completion dates for development activities or when we might receive material net cash inflows from our R&D projects, if ever. We anticipate we will make determinations as to which markets, and therefore, which regulatory approvals, to pursue and how much funding to direct toward achieving regulatory approval in each market on an ongoing basis in response to our ability to enter into new strategic alliances with respect to each program or potential product candidate, the scientific and clinical success of each future product candidate, and ongoing assessments as to each future product candidate’s commercial potential. We will need to raise additional capital and may seek additional strategic alliances in the future in order to advance our various programs.

Our projects or intended R&D activities may be subject to change from time to time as we evaluate results from completed studies, our R&D priorities and available resources.

General and Administrative Expenses

General and administrative expenses consist primarily of salaries and related costs for our personnel in executive, finance and accounting, and other administrative functions, as well as consulting costs, including commercial, corporate communications, market research, business consulting, human resources and intellectual property. Other costs include professional fees for legal and auditing services, insurance and facility costs.

Results of Operations

Years Ended December 31, 2024 and 2023

Research and Development Expenses

Our research and development expenses for our cytisinicline clinical development program are as follows (in thousands):

	Year Ended December 31,
	2024		2023
Clinical development program:
Cytisinicline	$	22,817	$	15,814
Total research and development expenses	$	22,817	$	15,814

Research and development expenses for the years ended December 31, 2024 and 2023 were $22.8 million and $15.8 million, respectively. The increase in 2024 as compared to 2023 was primarily due to the initiation, in May 2024, of our ORCA-OL open label safety trial. This increase was partially offset by a reduction in costs associated with our Phase 3 ORCA-3 trial and Phase 2 ORCA-V1 trial as both were completed in the second quarter of 2023.

General and Administrative Expenses

Our general and administrative expenses were as follows (in thousands):

	Year Ended December 31,
	2024		2023
Total general and administrative expenses	$	16,252	$	11,436

G&A expenses for the years ended December 31, 2024 and 2023 were $16.3 million and $11.4 million, respectively. The increase in 2024 as compared to 2023 was primarily due to higher employee expenses associated with stock based compensation expense and severance costs, commercial launch preparation costs, consulting costs, and legal expenses associated with patent activities and general corporate activities.

57

Interest Income

Total interest income for the years ended December 31, 2024 and 2023 was $2.4 million and $0.8 million, respectively. The increase in interest income for the year ended December 31, 2024 as compared to the same period in 2023was primarily due to higher average cash balances throughout 2024 and higher interest rates.

Interest Expense

Total interest expense for the years ended December 31, 2024 and 2023 was $2.2 million and $2.9 million, respectively. The decrease in interest expense for the year ended December 31, 2024 as compared to the same period in 2023 was due to a lower principal balance on our New Convertible Term Loan, relative to the Convertible Term Loan, that bears only a monthly interest as a result of the debt refinancing under the New Debt Agreement (see “Liquidity and Capital Resources” below).

Change in fair value of contingent consideration

We determine the fair value of the contingent consideration using a probability based discounted cash flow model whereby we forecast the timing of the cash flow of the related future payment based on cytisinicline’s current clinical development phase and the remaining requirements for regulatory approval. Adjustments to the fair value of the contingent liabilities, other than payments, are recorded as a gain or loss in the Consolidated Statements of Loss and Comprehensive Loss (see Note 7 “Fair Value Measurements, Fair Value of Sopharma Share Purchase Agreement Contingent Consideration” in the accompanying consolidated Financial Statements).

For the years ended December 31, 2024 and 2023 we recognized losses of $0.6 million and $0.5 million, respectively.

Loss on extinguishment of 2023 SVB convertible term loan

The debt refinancing under the New Debt Agreement was recognized as an extinguishment of debt under Accounting Standards Update, or ASU, 470-50. The difference between the reacquisition price and carrying value was recognized on the Consolidated Statement of Loss as a loss on extinguishment of debt.

For the year ended December 31, 2024 we incurred a loss on extinguishment of debt of $0.3 million.

Liquidity, Capital Resources and Going Concern

We have incurred an accumulated deficit of $205.6 million through December 31, 2024 and we expect to incur substantial additional losses in the future as we operate our business and continue or expand our regulatory, manufacturing, commercialization and other R&D activities and other operations. We have not generated any revenue from product sales to date, and we may not generate product sales revenue in the near future, if ever. As of December 31, 2024, we had a cash, cash equivalents and marketable securities balance of $34.4 million and a positive working capital balance of $29.8 million. For the year ended December 31, 2024, net cash used in operations was $29.8 million.

We have historically financed our operations through equity and debt financings. While we believe that we will be able to settle our commitments and liabilities in the normal course of business as they fall due during the next 12 months, as a late-stage clinical specialty pharmaceutical company with no current sources of revenue, we are dependent on our ability to raise funds (through public or private securities offerings, debt financings, government funding or grants, or other sources, which may include licensing, collaborations or other strategic transactions or arrangements) to support the ongoing advancement of our clinical trials and corporate activities. We believe that our existing cash, cash equivalents and marketable securities will be sufficient for us to fund our current operating expenses and capital expenditures into the third quarter of 2025.

The financial results have been prepared assuming we will continue to operate as a going concern, which contemplates the realization of assets and liabilities and commitments in the normal course of business.

Substantial doubt exists as to our ability to continue as a going concern. Our ability to continue as a going concern is subject to material uncertainty and dependent on our ability to obtain additional financing. We have historically financed our operations through equity offerings and/or debt financings. There can be no assurance that financing from these or other sources will be available to us in the future. Without additional funds, we may be forced to delay, scale back or eliminate some of our research and development activities or other operations and potentially delay product development in an effort to provide sufficient funds to continue our

58

operations. If any of these events occur, our ability to achieve our development and commercialization goals would be adversely affected.

Our current resources are insufficient to fund our planned operations for the next 12 months. We will continue to require substantial additional capital to continue our clinical development and commercialization activities. Accordingly, we will need to raise substantial additional capital from the sale of our securities, debt, partnering arrangements, non-dilutive fundraising or other financing transactions in order to continue to fund our operations and finance the remaining development and commercialization of our product candidate. The amount and timing of our future funding requirements will depend on many factors, including the pace and results of our clinical development, regulatory review and commercialization efforts. The uncertainty with respect to our operations and the market generally may also make it challenging to raise additional capital on favorable terms, if at all. In addition, current macroeconomic conditions have caused uncertainty in various sectors, including capital markets. Failure to raise capital as and when needed, on favorable terms or at all, will have a negative impact on our financial condition and our ability to develop our product candidate.

In addition, we expect to incur significant expenses and increasing operating losses for at least the next several years as we continue our clinical development of, seek regulatory approval for, and commercialize, cytisinicline and add personnel necessary to operate as a commercial-stage public company. We expect that our operating losses will fluctuate significantly from quarter to quarter and year to year due to timing of clinical development programs and efforts to achieve regulatory approval and commercialization.

The consolidated financial statements do not include any adjustments to the amounts and classification of assets and liabilities that might be necessary should we be unable to continue as a going concern. Such adjustments could be material.

We did not have during the periods presented, and we do not currently have, any commitments or obligations, including contingent obligations, other than the Sopharma Contingent Consideration, arising from arrangements with unconsolidated entities or persons that have or are reasonably likely to have a material current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, cash requirements or capital resources.

Convertible Debt

On July 25, 2024, we entered into a contingent convertible debt agreement, or New Debt Agreement, with Silicon Valley Bank, or SVB, a division of First-Citizens Bank & Trust Company, or FCB, in its capacity as administrative agent and collateral agent, and FCB, as a lender, or Lender, pursuant to which the Lender provided term loans having an aggregate original principal amount of $10.0 million, with additional term loans of up to $10.0 million available upon the occurrence of certain events as provided for in the New Debt Agreement and further described below, or New Convertible Term Loan. Our obligations under the New Debt Agreement are secured by substantially all of our assets, other than intellectual property.

The New Convertible Term Loan matures on December 1, 2027, which maturity date may be extended to June 1, 2028 upon the occurrence of certain events as provided for in the New Debt Agreement. The first tranche of the New Convertible Term Loan, which was advanced on July 25, 2024, has an aggregate original principal amount of $10.0 million. The Lender will further make available to us, upon our request: (a) on or prior to October 31, 2025, a second tranche of the New Convertible Term Loan having an aggregate principal amount of $5.0 million in the event that we receive written notice that the FDA has accepted for filing our NDA with respect to cytisinicline for a smoking cessation indication, or the Additional Term Loan Event I, and (b) on or prior to December 31, 2025, a third tranche of the New Convertible Term Loan having an aggregate principal amount of $5.0 million, subject to the Lender’s sole discretion. Interest is calculated on the outstanding principal amount of the New Convertible Term Loan at a floating rate per annum equal to the greater of (i) 7.0% and (ii) the prime rate minus 1.0%, which interest shall be payable in cash monthly in arrears and shall be payable on the earlier to occur of (x) the first day of the first month following any extension of credit by the Lender for our credit, (y) the date of any prepayment pursuant to the New Debt Agreement, or (z) the maturity date. The New Convertible Term Loan will be “interest-only” until December 31, 2025, subject to extension as provided for in the New Debt Agreement. The “interest-only” period may be extended to June 30, 2026, if (i) prior to December 31, 2025, we have received at least $40,000,000 in net cash proceeds from the issuance equity interests and (ii) the conditions of Additional Term Loan Event I have been satisfied.

Subject to certain terms and conditions, the conversion feature grants the Lender or, pursuant to an assignment, any designee thereof, or Conversion Right Holders (as defined in the New Debt Agreement), the right to convert part or all of the outstanding aggregate original principal amount of the New Convertible Term Loan, plus accrued and unpaid interest, into shares of our common stock at a conversion price equal to $7.00, subject to customary adjustment provisions. The Conversion Right Holders have the further right to convert part or all of the outstanding principal amount of the second and third tranches of the New Convertible Term Loan, plus accrued and unpaid interest, into shares of our common stock at a conversion price equal to the greater of (i) $4.854, subject to customary adjustment provisions, and (ii) the lower of (a) 150% of the average of the closing sale price of our common stock during

59

the 10 trading days preceding the effective date of such tranche and (b) 150% of the closing sale price of our common stock on the trading day immediately preceding the effective date of such tranche.

The conversion rights may be exercised at each Conversion Right Holder's option any time prior to repayment of the New Convertible Term Loan; provided, however, that the Conversion Right Holders will not be permitted to convert part or all of the outstanding aggregate original principal amount of the New Convertible Term Loan without the agreement of the relevant Conversion Right Holder and us if the sum of the amount of debt to be converted; and the aggregate amount of debt previously converted pursuant to any such voluntary conversion, divided by the aggregate of all debt that is then outstanding or that has been repaid other than by conversion exceeds 50%.

Additionally, the outstanding principal of the New Convertible Term Loan, plus accrued and unpaid interest, will automatically be converted into shares of our common stock at the applicable conversion price on such date if any, when the closing price per share of our common stock has been equal to or greater than (a) in the case of the outstanding aggregate original principal amount of the New Convertible Term Loan, plus accrued and unpaid interest, $24.00 or, (b) in the case of the outstanding principal amount of the second and third tranches of the New Convertible Term Loan, plus accrued and unpaid interest, three times the applicable conversion price, in each case for the thirty consecutive trading days prior to such date, and the Liquidity Conditions (as defined in the New Debt Agreement) have been satisfied.

The New Convertible Term Loan may be repaid at our election and upon notice to the Agent (as defined in the New Debt Agreement) by paying the Lender an amount equal to (i) a prepayment fee equal to (a) 3.0% of the aggregate outstanding principal balance if such prepayment occurs on or prior to the first anniversary of the New Convertible Term Loan, (b) 2.0% of the aggregate outstanding principal balance if such prepayment occurs after the first anniversary, but on or prior to the second anniversary, of the New Convertible Term Loan or (c) 1.0% of the aggregate outstanding principal balance if such prepayment occurs after the second anniversary of the New Convertible Term Loan and before the maturity date; (ii) 4.0% of the original aggregate principal amount of the New Convertible Term Loan and (iii) all other sums due and payable under the New Convertible Term Loan.

The New Debt Agreement contains customary affirmative and restrictive covenants, including covenants regarding the incurrence of additional indebtedness or liens, investments, transactions with affiliates, delivery of financial statements, payment of taxes, maintenance of insurance, dispositions of property, mergers or acquisitions, among other customary covenants. We are also restricted from paying dividends or making other distributions or payments on our capital stock, subject to limited exceptions. The New Debt Agreement also includes customary representations and warranties, events of default and termination provisions. The Lender may not engage in any short sales of, or other hedging transactions in, our common stock while any amounts are outstanding under the New Debt Agreement.

In connection with the New Debt Agreement, we entered into a Registration Rights Agreement, or RRA, with the Lender, pursuant to which we registered for resale shares of our common stock issuable to the Conversion Right Holders upon the conversion of outstanding debt under the New Debt Agreement. Our obligations under the RRA will terminate with respect to a holder of applicable registrable securities if, as of the date we would be required to provide written notice of such registration, (x) the aggregate number of registrable securities then issued and issuable to such holder and to such holder’s affiliates, together with all other shares then held beneficially and/or of record by such holder and its affiliates, does not exceed 7.0% of our then-total shares issued and outstanding (calculated including all such registrable securities and other shares), or (y) we and such holder mutually reasonably agree that all registrable securities then issued and issuable to such holder and its affiliates may then be sold by such holder without the requirement to be in compliance with Rule 144 promulgated under the Securities Act, or Rule 144, and otherwise without restriction or limitation pursuant to Rule 144.

Virtu At-the-Market Sales Agreement

On December 21, 2021, we entered into an At-the-Market Offering Sales Agreement, or ATM, with Virtu Americas, LLC, as sales agent. The ATM was terminated on February 29, 2024, and no further sales of our common stock will be made pursuant to the ATM.

Through the date of termination of the ATM, we offered and sold an aggregate of 200,000 shares of our common stock. These aggregate sales resulted in gross proceeds to us of approximately $1.5 million. During the year ended December 31, 2024, we did not sell any shares of our common stock pursuant to the ATM.

November 2022 Private Placement

In November 2022, we entered into subscription agreements with certain accredited investors pursuant to which we sold to the purchasers in a private placement transaction approximately 4,093,141 units at a purchase price of $4.625 per unit, with each unit

60

consisting of two shares of common stock and a common stock purchase warrant to purchase one share of common stock, or the Warrants.

The Warrants are exercisable at a price per share of common stock of $4.50, subject to adjustment. The Warrants are exercisable beginning on the six-month anniversary of the initial closing date of the private placement offering, or May 18, 2023, or the Initial Exercise Date, and will expire on the seven year anniversary of the initial closing date of the private placement offering, or November 18, 2029. The Warrants cannot be exercised by a Warrant holder if, after giving effect thereto, such Warrant holder would beneficially own more than 19.99% of our outstanding common stock. Additionally, subject to certain exceptions, if, after the Initial Exercise Date, (i) the volume weighted average price of our common stock for each of 30 consecutive trading days, or the Measurement Period, which Measurement Period commenced on November 18, 2022, exceeds 300% of the exercise price (subject to adjustments for stock splits, recapitalizations, stock dividends and similar transactions), (ii) the average daily trading volume for such Measurement Period exceeds $500,000 per trading day and (iii) certain other equity conditions are met, and subject to a beneficial ownership limitation, then we may call for cancellation of all or any portion of the Warrants then outstanding.

We received approximately $17.9 million in net proceeds from the private placement after deducting placement agent expenses and commissions and offering expenses.

May 2023 Registered Direct Offering

In May 2023, we entered into a securities purchase agreement with certain purchasers, pursuant to which we sold 3,000,000 shares of common stock at a price of $5.50 per share in a registered direct offering. The offering of the shares was made pursuant to our shelf registration statement on Form S-3, including the prospectus dated January 5, 2022 contained therein, and the prospectus supplement dated May 25, 2023.

We received approximately $15.3 million in net proceeds from the registered direct offering after deducting placement agent fees and offering expenses.

February 2024 Registered Direct Offering and Concurrent Private Placement

In February 2024, we entered into a securities purchase agreement with certain purchasers, pursuant to which we sold 13,086,151 shares of common stock at a price of $4.585 per share in a registered direct offering. The offering of the shares was made pursuant to our shelf registration statement on Form S-3, including the prospectus dated January 5, 2022 contained therein, and the prospectus supplement dated February 29, 2024.

In a concurrent private placement, we issued unregistered warrants to purchase up to 13,086,151 shares of common stock at an exercise price of $4.906 per share (provided, however, that the purchaser may elect to exercise the warrants for pre-funded warrants in lieu of shares of common stock at an exercise price of $4.906, minus $0.001, the exercise price of each pre-funded warrant). These warrants will be immediately exercisable for shares of common stock or pre-funded warrants in lieu thereof, and will expire on the earlier of (i) three and one-half years following the date of issuance and (ii) 30 days following our public disclosure of the acceptance of an NDA for cytisinicline by the FDA in a Day 74 Letter or equivalent correspondence. The shares of common stock issuable upon exercise of the warrants (or pre-funded warrants, as applicable) were subsequently registered pursuant to our registration statement on Form S-3, which was declared effective on May 6, 2024.

The registered direct offering raised total gross proceeds of approximately $60.0 million, and after deducting approximately $3.9 million in placement agent fees and offering expenses, we received net proceeds of approximately $56.1 million.

Jefferies Open Market Sale Agreement

On September 27, 2024, we entered into an Open Market Sale Agreement, or Sale Agreement, with Jefferies LLC, or Jefferies, as sales agent, to establish an at-the-market offering program through which we may sell shares of our common stock with an aggregate offering price of up to $50.0 million. During the year ended December 31, 2024, we did not sell any shares under the Sale Agreement. As of December 31, 2024, we had $50.0 million available under the Sale Agreement.

61

Cash Flows

Operating Activities

For the years ended December 31, 2024 and 2023, net cash used in operating activities was $29.8 million and $24.5 million, respectively. The increase in net cash used in operations in 2024 as compared to 2023 was due to higher R&D expenses associated with initiation, in May 2024, and ramp up of enrollment of our ORCA-OL trial and the timing of required upfront prepayments by our clinical vendors. This was partially offset by reduced costs associated with our Phase 3 ORCA-3 trial and Phase 2 ORCA-V1 trial as both were completed in the second quarter of 2023.

Financing Activities

For the years ended December 31, 2024 and 2023 net cash provided by financing activities was $48.5 million and $15.3 million, respectively. Net cash provided by financing activities for the year ended December 31, 2024 relates to proceeds received from our February 2024 registered direct offering, the New Convertible Term Loan associated with the refinancing transaction in July 2024, warrant exercises, and stock sales under our employee stock purchase plan. This was partially offset by repayment of our Convertible Term Loan associated with the refinancing transaction. Net cash provided by financing activities for the year ended December 31, 2023 relates to proceeds received from our May 2023 private placement, and warrant exercises.

Investing Activities

Net cash used in investing activities in 2024 was due to transactions involving marketable securities in the normal course of business. Investing activities in 2023 consisted of property and equipment purchases.

Critical Accounting Policies and Estimates

Use of Estimates

The preparation of consolidated financial statements in conformity with United States generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and notes thereto. Actual results could differ from these estimates. Estimates and assumptions principally relate to estimates of contingent considerations, the initial fair value and forfeiture rates of stock options issued to employees and consultants, the estimated compensation cost on performance restricted stock unit awards, clinical trial and manufacturing accruals, estimated useful lives of property, plant, equipment and intangible assets, estimates and assumptions in contingent liabilities.

Intangible Assets

Our intangible assets are subject to amortization and are amortized using the straight-line method over their estimated period of benefit. We evaluate the carrying amount of intangible assets periodically by taking into account events or circumstances that may warrant revised estimates of useful lives or that indicate the asset may be impaired.

Impairment of Long-Lived Assets

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the asset’s carrying amount may not be recoverable. We conduct our long-lived asset impairment analyses in accordance with ASC 360-10-15, “Impairment or Disposal of Long-Lived Assets.” ASC 360-10-15 requires us to group assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and evaluate the asset group against the sum of the undiscounted future cash flows. If the undiscounted cash flows do not indicate the carrying amount of the asset is recoverable, an impairment charge is measured as the amount by which the carrying amount of the asset group exceeds its fair value based on discounted cash flow analysis or appraisals.

Goodwill

Goodwill acquired in a business combination is assigned to the reporting unit that is expected to benefit from the combination as of the acquisition date. Goodwill is tested for impairment on an annual basis or, more frequently, if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit.

Sopharma Share Purchase Agreement Contingent Consideration

62

We may be required to pay future contingent consideration to Sopharma as part of the Share Purchase Agreement, which is contingent upon obtaining regulatory approval of cytisinicline by the FDA or the EMA. We determine the fair value of the contingent consideration using a probability based discounted cash flow approach whereby we forecast the timing of the cash flow of the related future payment based on cytisinicline's current clinical development phase and the remaining requirements for regulatory approval. We then discount the expected payment amount to calculate the present value and then apply a probability of success in obtaining regulatory approval as of the valuation date. We evaluate the underlying projection used in determining the fair value each period and make updates as necessary.

The significant assumptions we use to value the contingent consideration are the forecasted timing of the future payment, the risk-adjusted discount rate and the probability of success which are all considered significant unobservable inputs, and as such, the liability is classified as a Level 3 measurement. The risk-adjusted discount rate is adjusted for credit risk. An increase in the discount rate or decrease in the probability of success would result in a decrease in the fair value of the contingent consideration. Conversely, a decrease in the discount rate or increase in the probability of success would result in an increase in the fair value of the contingent consideration.

Government Grants

We account for government grants by recognizing the benefit of the grant as qualifying expenditures are incurred provided that there is reasonable assurance that we have complied with all conditions under the terms of the grant and that the amount requested for reimbursement will be received. The government grant reduces the research and development expenses to which it relates on our statement of profit and loss.

Research and Development Expenses

Research and development costs are expensed as incurred, net of related refundable investment tax credits, with the exception of non-refundable advance payments for goods or services to be used in future research and development, which are capitalized in accordance with ASC 730, “Research and Development” and included within Prepaid Expenses or Other Assets depending on when the assets will be utilized.

Clinical trial expenses are a component of research and development costs. These expenses include fees paid to contract research organizations and investigators and other service providers, which conduct certain product development activities on our behalf. We use an accrual basis of accounting, based upon estimates of the amount of service completed. In the event payments differ from the amount of service completed, prepaid expense or accrued liabilities amounts are adjusted on the balance sheet. These expenses are based on estimates of the work performed under service agreements, milestones achieved, patient enrollment and experience with similar contracts. We monitor each of these factors to the extent possible and adjust estimates accordingly.

Stock-Based Compensation

Under the fair value recognition provisions of the ASC 718, “Stock Compensation”, we use the modified prospective method with respect to options granted to employees and directors. The expense is amortized on a straight-line basis over the graded vesting period.

Restricted Stock Unit Awards

We grant restricted stock unit awards that generally vest and are expensed over a four-year period. We also granted restricted stock unit awards that vest in conjunction with certain performance conditions to certain executive officers and key employees. At each reporting date, we evaluate whether achievement of the performance conditions is probable. Compensation expense is recorded over the appropriate service period based upon our assessment of accomplishing each performance provision or the occurrence of other events that may have caused the awards to accelerate and vest.

Warrants

We account for warrants pursuant to the authoritative guidance on accounting for derivative financial instruments indexed to, and We account for warrants pursuant to the authoritative guidance on accounting for derivative financial instruments indexed to, and potentially settled in, a company’s own stock, on the understanding that in compliance with applicable securities laws, the warrants require the issuance of registered securities upon exercise and therefore do not sufficiently preclude an implied right to net cash settlement. We have warrants classified as equity and these are not reassessed for their fair value at the end of each reporting period. Warrants classified as equity are initially measured at their fair value and recognized as part of stockholders’ equity. Determining the appropriate fair-value model and calculating the fair value of registered warrants requires considerable judgment, including estimating stock price volatility and expected warrant life. The computation of expected volatility was based on the historical volatility of

63

comparable companies from a representative peer group selected based on industry and market capitalization. A small change in the estimates used may have a relatively large change in the estimated valuation. We use the Black-Scholes pricing model to value the warrants.

Recent Accounting Standards

In December 2023, the Financial Accounting Standards Board, or FASB, issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures”. This guidance is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to disclosure regarding rate reconciliation and income taxes paid both in the United States. and in foreign jurisdictions. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024 on a prospective basis, with the option to apply the standard retrospectively. Early adoption is permitted. We are evaluating this standard to determine if adoption will have a material impact on our consolidated financial statements.

Recent Adopted Accounting Policies

In November 2023, FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which is intended to provide enhanced segment disclosures. The standard will require disclosures about significant segment expenses and other segment items and identifying the Chief Operating Decision Maker and how they use the reported segment profitability measures to assess segment performance and allocate resources. These enhanced disclosures are required for all entities on an interim and annual basis, even if they have only a single reportable segment. The standard is effective for years beginning after December 15, 2023, and interim periods within annual periods beginning after December 15, 2024 and early adoption is permitted. The adoption of this standard did not have a significant impact on our financial position or results of operations.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Not applicable.

64

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

INDEX TO FINANCIAL STATEMENTS:

Report of Independent Registered Public Accounting Firm (PCAOB ID 271)	66
Consolidated Balance Sheets as of December 31, 2024 and 2023	68
Consolidated Statements of Loss and Comprehensive Loss for the years ended December 31, 2024, 2023 and 2022	69
Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2024, 2023 and 2022	70
Consolidated Statements of Cash Flows for the years ended December 31, 2024, 2023 and 2022	71
Notes to Consolidated Financial Statements	72

65

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of Achieve Life Sciences, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Achieve Life Sciences, Inc. and its subsidiaries (the Company) as of December 31, 2024 and 2023, and the related consolidated statements of loss and comprehensive loss, of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2024, including the related notes (collectively referred to as the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2024 in conformity with accounting principles generally accepted in the United States of America.

Substantial Doubt About the Company’s Ability to Continue as a Going Concern

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 1 to the consolidated financial statements, the Company has suffered recurring losses from operations and cash outflows from operating activities that raise substantial doubt about its ability to continue as a going concern. Management’s plans in regard to these matters are also described in Note 1. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Contingent consideration arising from the Sopharma share purchase agreement

As described in Notes 2, 6 and 7 to the consolidated financial statements, in 2015 the Company entered into a Share Purchase Agreement with Sopharma AD to acquire 75% of the outstanding shares of Extab Corporation for $2.0 million in cash and $2.0 million in a deferred payment, contingent on regulatory approval of cytisinicline by the Federal Drug Administration or the European Medicines Agency. As of December 31, 2024, the fair value of the contingent consideration was estimated to be $1.1 million. Management determined the fair value of the contingent consideration using a probability based discounted cash flow model whereby management forecasted the timing of the cash flow of the related future payment based on cytisinicline’s current clinical development phase and the remaining requirements for regulatory approval. Management then discounted the expected payment amount to

66

calculate the present value and then applied a probability of success in obtaining regulatory approval as of the valuation date. Management’s significant assumptions include the forecasted timing of the future payment, the probability of success and the risk-adjusted discount rate. The discount rate is adjusted for credit risk.

The principal considerations for our determination that performing procedures relating to the contingent consideration arising from the Sopharma share purchase agreement is a critical audit matter are (i) the significant judgments required by management in determining the fair value of the contingent consideration and (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating management’s significant assumptions relating to the probability of success, the risk-adjusted discount rate, and forecasted timing of the future payment. In addition, the audit effort involved the use of professionals with specialized skill and knowledge.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included, among others, (i) reading the agreement related to the contingent consideration, (ii) evaluating the appropriateness of the probability based discounted cash flow model, (iii) testing the completeness and accuracy of underlying data used in the model, and (iv) evaluating the reasonableness of the significant assumptions used by management related to the probability of success, the risk-adjusted discount rate and the forecasted timing of the future payment. Evaluating management’s significant assumptions related to the probability of success and the forecasted timing of the future payment involved evaluating whether these assumptions were reasonable by considering the agreement associated with the transaction, industry information regarding clinical trial success rates and drug development timelines, and whether the assumptions were consistent with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist with the evaluation of the appropriateness of the probability based discounted cash flow model and the reasonableness of the risk-adjusted discount rate.

/s/PricewaterhouseCoopers LLP

Chartered Professional Accountants

Vancouver, Canada

March 11, 2025

We have served as the Company's auditor since 2017.

67

Achieve Life Sciences, Inc.

Consolidated Balance Sheets

(In thousands, except per share and share amounts)

	December 31,
	2024			2023
ASSETS
Current assets:
Cash and cash equivalents [note 3 and note 7]	$	12,753		$	15,546
Marketable securities [note 7]		21,607			—
Grant receivable [note 4]		—			111
Prepaid expenses and other assets		2,107			1,325
Total current assets		36,467			16,982
Restricted cash and other assets [note 7 and note 8]		39			92
Right-of-use assets [note 12]		119			66
License agreement [note 5 and note 6]		974			1,197
Goodwill		1,034			1,034
Total assets	$	38,633		$	19,371
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	1,950		$	618
Accrued liabilities other		573			351
Accrued clinical liabilities		1,077			280
Accrued compensation		3,027			2,311
Contingent consideration [note 6 and note 7]		—			528
Current portion of long-term obligations [note 12]		55			63
Current portion of convertible debt [note 7 and note 9]		—			16,662
Total current liabilities		6,682			20,813
Non-current liabilities:
Non-current portion of convertible debt [note 7 and note 9]		9,837			—
Contingent consideration [note 6 and note 7]		1,149			—
Long-term obligations [note 12]		66			6
Total liabilities		17,734			20,819
Commitments and contingencies [note 12]
Stockholders' equity:
Series A convertible preferred stock, $0.001 par value, 9,158 shares designated, zero issued and outstanding at December 31, 2024 and December 31, 2023.		—			—
Series B convertible preferred stock, $0.001 par value, 6,256 shares designated, zero issued and outstanding at December 31, 2024 and December 31, 2023.		—			—
Common stock, $0.001 par value, 150,000,000 shares authorized, 34,685,072 and 21,165,760 issued and outstanding at December 31, 2024 and December 31, 2023, respectively.		103			90
Additional paid-in capital		226,343			164,209
Accumulated deficit		(205,578	)		(165,751	)
Accumulated other comprehensive income		31			4
Total stockholders' equity		20,899			(1,448	)
Total liabilities and stockholders' equity	$	38,633		$	19,371
Going concern [note 1]

See accompanying notes.

68

Achieve Life Sciences, Inc.

Consolidated Statements of Loss and Comprehensive Loss

(In thousands, except per share and share amounts)

	Year Ended December 31,
	2024			2023			2022
EXPENSES
Research and development	$	22,817		$	15,814		$	30,078
General and administrative		16,252			11,436			10,722
Total operating expenses		39,069			27,250			40,800
OTHER INCOME (EXPENSE)
Interest income		2,356			825			199
Interest expense [note 9]		(2,180	)		(2,853	)		(1,789	)
Change in fair value of contingent consideration [note 6 and note 7]		(621	)		(528	)		—
Loss on extinguishment of 2023 SVB convertible term loan [note 9]		(283	)		—			—
Other expense		(30	)		(9	)		40
Total other expense		(758	)		(2,565	)		(1,550	)
Net Loss	$	(39,827	)	$	(29,815	)	$	(42,350	)
OTHER COMPREHENSIVE INCOME
Net unrealized gain on securities		27			—			—
Total other comprehensive income (loss)		27			—			—
Comprehensive loss	$	(39,800	)	$	(29,815	)	$	(42,350	)
Basic and diluted net loss per common share [note 11 [i]]	$	(1.24	)	$	(1.50	)	$	(4.00	)
Shares used in computation of basic and diluted net loss per common share    [note 11 [i]]		32,071,146			19,827,354			10,593,034

See accompanying notes.

69

Achieve Life Sciences, Inc.

Consolidated Statements of Stockholders’ Equity

(In thousands, except share amounts)

													Accumulated
										Additional			Other					Total,
	Common Stock					Preferred Stock				Paid-in			Comprehensive		Accumulated			Stockholders’
	Shares			Amount		Shares		Amount		Capital			Income (Loss)		Deficit			Equity
Balance, December 31, 2021		9,453,542			79		—		—		121,545			4		(93,586	)		28,042
Stock-based compensation expense		—			—		—		—		3,270			—		—			3,270
Shares issued on exercise of warrants		3,709			—		—		—		24			—		—			24
Shares issued from purchase agreement with Virtu		200,000			—		—		—		1,330			—		—			1,330
Shares issued as settlement with trade vendor		3,584			—		—		—		26			—		—			26
Restricted stock unit settlements		26,625			—		—		—		—			—		—			—
Restricted stock unit settlements withheld and retired to treasury		(5,605	)		—		—		—		(47	)		—		—			(47	)
Shares issued under employee share purchase plan		28,892			—		—		—		126			—		—			126
Shares issued - November 2022 private placement		8,186,282			8		—		—		17,874			—		—			17,882
Net loss		—			—		—		—		—			—		(42,350	)		(42,350	)
Balance, December 31, 2022		17,897,029			87		—		—		144,148			4		(135,936	)		8,303
Stock-based compensation expense		—			—		—		—		3,439			—		—			3,439
Shares issued on exercise of warrants		98,333			—		—		—		227			—		—			227
Financing costs relating to November 2022 private placement		—			—		—		—		(30	)		—		—			(30	)
Shares issued - May 2023 private placement		3,000,000			3		—		—		15,298			—		—			15,301
SVB convertible debt refinancing discount		—			—		—		—		1,074			—		—			1,074
Restricted stock unit settlements		139,750			—		—		—		—			—		—			—
Restricted stock unit settlements withheld and retired to treasury		(29,352	)		—		—		—		(220	)		—		—			(220	)
Shares issued as settlement with trade vendor		60,000			—		—		—		273			—		—			273
Net loss		—			—		—		—		—			—		(29,815	)		(29,815	)
Balance, December 31, 2023		21,165,760			90		—		—		164,209			4		(165,751	)		(1,448	)
Stock-based compensation expense		—			—		—		—		5,325			—		—			5,325
Shares issued on exercise of warrants		295,126			—		—		—		682			—		—			682
Shares issued - February 2024 private placement		13,086,151			13		—		—		56,063			—		—			56,076
Restricted stock unit settlements		113,125			—		—		—		—			—		—			—
Restricted stock unit settlements withheld and retired to treasury		(23,733	)		—		—		—		(114	)		—		—			(114	)
Shares issued under employee share purchase plan		48,643			—		—		—		178			—		—			178
Other comprehensive income		—			—		—		—		—			27		—			27
Net loss		—			—		—		—		—			—		(39,827	)		(39,827	)
Balance, December 31, 2024		34,685,072			103		—		—		226,343			31		(205,578	)		20,899

See accompanying notes.

70

Achieve Life Sciences, Inc.

Consolidated Statements of Cash Flows

(In thousands)

	Year Ended December 31,
	2024			2023			2022
Operating Activities:
Net loss	$	(39,827	)	$	(29,815	)	$	(42,350	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization [note 5]		229			228			236
Stock-based compensation [note 11[c], note 11[d] and note 11[e]]		5,325			3,439			3,270
Shares issued as settlement with trade vendor		—			273			26
Accrued interest on SVB convertible debt [note 9]		799			1,216			1,170
Amortization of 2024 SVB convertible term loan transaction costs [note 9]		23			—			—
Accretion of discount on modification of debt [note 9]		365			430			—
Loss on extinguishment of 2023 SVB convertible term loan [note 9]		283			—			—
Contingent consideration [note 6 and note 7]		621			528			—
Changes in operating assets and liabilities:
Grant receivable [note 4]		111			(6	)		48
Prepaid expenses and other assets		(765	)		1,176			(931	)
Accounts payable		1,332			(1,042	)		799
Accrued liabilities other		222			(32	)		55
Accrued clinical liabilities		797			(1,449	)		376
Accrued compensation		716			633			(263	)
Lease obligation		(1	)		(58	)		(5	)
Net cash used in operating activities		(29,770	)		(24,479	)		(37,569	)
Financing Activities:
Proceeds from exercise of warrants [note 11[g]]		682			227			24
Proceeds from ATM, net of issuance costs [note 11[b]]		—			—			1,330
Proceeds from employee stock purchase plan [note 11[e]]		178			—			126
Taxes paid related to net share settlement of equity awards		(114	)		(220	)		(47	)
Proceeds from the November 2022 private placement, net of issuance costs [note 11[b]]		—			(30	)		17,882
Proceeds from May 2023 private placement, net of issuance costs [note 11[b]]		—			15,301			—
Proceeds from February 2024 registered direct offering, net of issuance costs [note 11[b]]		56,076			—			—
Repayment of 2023 SVB convertible term loan [note 7 and note 9]		(18,109	)		—			—
Receipt of 2024 SVB convertible term loan less transaction costs [note 7 and note 9]		9,814			—			—
Net cash provided by financing activities		48,527			15,278			19,315
Investing Activities:
Purchase of property and equipment		—			(21	)		—
Purchase of investments		(47,887	)		—			—
Maturities of investments		26,307			—			—
Net cash provided by (used in) investing activities		(21,580	)		(21	)		—
Effect of exchange rate changes on cash		—			(3	)		3
Net increase (decrease) in cash, cash equivalents and restricted cash		(2,823	)		(9,225	)		(18,251	)
Cash, cash equivalents and restricted cash at beginning of year		15,596			24,821			43,072
Cash, cash equivalents and restricted cash at end of year	$	12,773		$	15,596		$	24,821

See accompanying notes.

71

Achieve Life Sciences, Inc.

Notes to Consolidated Financial Statements

(In thousands, except per share and share amounts)

1. NATURE OF BUSINESS, BASIS OF PRESENTATION AND GOING CONCERN UNCERTAINTY

Achieve Life Sciences, Inc. (referred to as “Achieve,” “we,” “us,” or “our”) is a late-stage clinical specialty pharmaceutical company committed to the global development and commercialization of cytisinicline for smoking cessation and nicotine dependence. We were incorporated in the state of Delaware, and operate out of Bothell, Washington and Vancouver, British Columbia.

Going Concern Uncertainty

The accompanying financial statements have been prepared assuming we will continue to operate as a going concern, which contemplates the realization of assets and settlement of liabilities and commitments in the normal course of business.

We have historically experienced recurring losses from operations and have incurred an accumulated deficit of $205.6 million through December 31, 2024. As of December 31, 2024, we had cash, cash equivalents and marketable securities of $34.4 million and a positive working capital balance of $29.8 million. For the year ended December 31, 2024, we incurred a net loss of $39.8 million and net cash used in operating activities was $29.8 million.

Substantial doubt exists as to our ability to continue as a going concern. Our ability to continue as a going concern is subject to material uncertainty and dependent on our ability to obtain additional financing. We have historically financed our operations through equity offerings and/or debt financings. There can be no assurance that financing from these or other sources will be available to us in the future. Without additional funds, we may be forced to delay, scale back or eliminate some of our research and development, or R&D, activities or other operations and potentially delay product development in an effort to provide sufficient funds to continue our operations. If any of these events occurs, our ability to achieve our development and commercialization goals would be adversely affected.

Our current resources are insufficient to fund our planned operations for the next 12 months. We will continue to require substantial additional capital to continue our clinical development and commercialization activities. Accordingly, we will need to raise substantial additional capital from the sale of our securities, debt, partnering arrangements, non-dilutive fundraising or other financing transactions in order to continue to fund our operations and finance the remaining development and commercialization of our product candidate. The amount and timing of our future funding requirements will depend on many factors, including the pace and results of our clinical development efforts. The uncertainty with respect to our operations and the market generally may also make it challenging to raise additional capital on favorable terms, if at all. Failure to raise capital as and when needed, on favorable terms or at all, will have a negative impact on our financial condition and our ability to develop our product candidate. We expect our expenses to substantially increase over time in connection with our ongoing activities, particularly as we advance our product candidate in clinical development and support future commercialization.

We are required to keep substantially all of our cash and cash equivalents with a single financial institution, Silicon Valley Bank, or SVB, a division of First-Citizens Bank & Trust Company, or FCB, as required by the covenants of our New Debt Agreement (Note 3 – Financial Instruments and Risk - Concentration of Cash and Cash Equivalents Risk and Note 9 – Convertible Debt).

Our commercial bank balances exceed federal insurance limits. We have not experienced any losses in our cash and cash equivalents for the years ended December 31, 2024 and 2023.

These consolidated financial statements do not include any adjustments to the amounts and classification of assets and liabilities that might be necessary should we be unable to continue as a going concern. Such adjustments could be material.

Basis of Presentation

The consolidated financial statements include the accounts of Achieve and our wholly owned subsidiaries, Achieve Life Sciences Technologies Inc., Achieve Life Science, Inc., Extab Corporation, and Achieve Pharma UK Limited. All intercompany balances and transactions have been eliminated.

72

2. ACCOUNTING POLICIES

Significant Accounting Policies

Use of Estimates

The preparation of consolidated financial statements in conformity with United States generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and notes thereto. Actual results could differ from these estimates. Estimates and assumptions principally relate to estimates of contingent considerations, the initial fair value and forfeiture rates of stock options issued to employees and consultants, the estimated compensation cost on performance restricted stock unit awards, clinical trial and manufacturing accruals, estimated useful lives of property, plant, equipment and intangible assets, estimates and assumptions in goodwill impairment assessment, estimates and assumptions in contingent liabilities.

Cash Equivalents

We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents, which we consider as available for sale and carry at fair value, with unrealized gains and losses, if any, reported as accumulated other comprehensive income or loss, which is a separate component of stockholders’ equity.

Marketable Securities

Marketable securities consist of financial instruments purchased with an original maturity of greater than three months and less than one year. We consider our marketable securities as available-for-sale and carry them at fair value, with unrealized gains and losses, if any, reported as accumulated other comprehensive income or loss, which is a separate component of stockholders’ equity. Realized gains and losses on the sale or impairment, if any, of these securities, are recognized in net income or loss. The cost of investments sold is based on the specific identification method.

Fair value of financial instruments

The fair value of our marketable securities is based on quoted market prices and trade data for comparable securities.

Other financial instruments including accounts payable, accrued liabilities other, accrued clinical liabilities and accrued compensation are carried at cost, which we believe approximates fair value because of the short-term maturities of these instruments.

Intellectual Property

The costs of acquiring intellectual property rights to be used in the research and development process, including licensing fees and milestone payments, are charged to research and development expense as incurred in situations where we have not identified an alternative future use for the acquired rights, and are capitalized in situations where we have identified an alternative future use. No costs associated with acquiring intellectual property rights have been capitalized to date. Costs of maintaining intellectual property rights are expensed as incurred.

Intangible Assets

Our intangible assets are subject to amortization and are amortized using the straight-line method over their estimated period of benefit. We evaluate the carrying amount of intangible assets periodically by taking into account events or circumstances that may warrant revised estimates of useful lives or that indicate the asset may be impaired.

Goodwill

Goodwill acquired in a business combination is assigned to the reporting unit that is expected to benefit from the combination as of the acquisition date. Goodwill is tested for impairment on an annual basis or, more frequently, if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit.

73

Sopharma Share Purchase Agreement Contingent Consideration

We may be required to pay future contingent consideration to Sopharma, AD as part of the Share Purchase Agreement, which is contingent upon obtaining regulatory approval of cytisinicline by the FDA or the EMA.We determine the fair value of the contingent consideration using a probability based discounted cash flow approach whereby we forecast the timing of the cash flow of the related future payment based on cytisinicline's current clinical development phase and the remaining requirements for regulatory approval. We then discount the expected payment amount to calculate the present value and then apply a probability of success in obtaining regulatory approval as of the valuation date. We evaluate the underlying projection used in determining the fair value each period and make updates as necessary.

The significant assumptions we use to value the contingent consideration are the forecasted timing of the future payment, the risk-adjusted discount rate and the probability of success which are all considered significant unobservable inputs, and as such, the liability is classified as a Level 3 measurement. The risk-adjusted discount rate is adjusted for credit risk. An increase in the discount rate or decrease in the probability of success would result in a decrease in the fair value of the contingent consideration. Conversely, a decrease in the discount rate or increase in the probability of success would result in an increase in the fair value of the contingent consideration.

Property and Equipment

Property and equipment assets are recorded at cost less accumulated depreciation. Depreciation expense on assets acquired under capital lease is recorded within depreciation expense. Depreciation is recorded on a straight-line basis over the following periods:

Computer equipment	3 years
Furniture and fixtures	5 years
Machinery and equipment	5 - 10 years
Leasehold improvements and equipment under capital lease	Over the term of the lease

Impairment of Long-Lived Assets

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the asset’s carrying amount may not be recoverable. We conduct our long-lived asset impairment analyses in accordance with ASC 360-10-15, “Impairment or Disposal of Long-Lived Assets.” ASC 360-10-15 requires us to group assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and evaluate the asset group against the sum of the undiscounted future cash flows. If the undiscounted cash flows do not indicate the carrying amount of the asset is recoverable, an impairment charge is measured as the amount by which the carrying amount of the asset group exceeds its fair value based on discounted cash flow analysis or appraisals.

Income Taxes

Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are recognized for the differences between the carrying values of assets and liabilities and their respective income tax bases and for operating losses and tax credit carry forwards. A valuation allowance is provided for the portion of deferred tax assets that is more likely than not to be unrealized. Deferred tax assets and liabilities are measured using the enacted tax rates and laws.

Government Grants

We account for government grants by recognizing the benefit of the grant as qualifying expenditures are incurred provided that there is reasonable assurance that we have complied with all conditions under the terms of the grant and that the amount requested for reimbursement will be received. The government grant reduces the research and development, or R&D, expenses to which it relates on our statement of profit and loss.

Research and Development Costs

Research and development costs are expensed as incurred, net of related refundable investment tax credits, with the exception of non-refundable advance payments for goods or services to be used in future research and development, which are capitalized in accordance

74

with ASC 730, “Research and Development” and included within Prepaid Expenses or Other Assets depending on when the assets will be utilized.

Clinical trial expenses are a component of research and development costs. These expenses include fees paid to contract research organizations and investigators and other service providers, which conduct certain product development activities on our behalf. We use an accrual basis of accounting, based upon estimates of the amount of service completed. In the event payments differ from the amount of service completed, prepaid expense or accrued liabilities amounts are adjusted on the balance sheet. These expenses are based on estimates of the work performed under service agreements, milestones achieved, patient enrollment and experience with similar contracts. We monitor each of these factors to the extent possible and adjust estimates accordingly.

Stock-Based Compensation

Under the fair value recognition provisions of the ASC 718, “Stock Compensation,” we use the modified prospective method with respect to options granted to employees and directors. The expense is amortized on a straight-line basis over the graded vesting period.

Restricted Stock Unit Awards

We grant restricted stock unit awards that generally vest and are expensed over a four-year period. We also granted restricted stock unit awards that vest in conjunction with certain performance conditions to certain executive officers and key employees. At each reporting date, we evaluate whether achievement of the performance conditions is probable. Compensation expense is recorded over the appropriate service period based upon our assessment of accomplishing each performance provision or the occurrence of other events that may have caused the awards to accelerate and vest.

Segment Information

We follow the requirements of ASC 280, “Segment Reporting.” Operating segments are identified as components of an enterprise about which separate discreet financial information is available for evaluation by our Chief Executive Officer, the chief operating decision-maker, or CODM. The CODM assesses performance based on consolidated net income that is also reported on the Consolidated Statements of Loss and Comprehensive Loss as Net Loss.

We view our operations and manage our business as one operating segment, dedicated to the development and commercialization of cytisinicline for nicotine dependence, with operations located in Canada, the United States and the U.K .

Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss). Other comprehensive income (loss) consists of unrealized gains and losses on our available-for-sale marketable securities. We report the components of comprehensive loss in the statement of stockholders’ equity.

Loss per Common Share

Basic loss per common share is computed using the weighted average number of common shares outstanding during the period. Diluted loss per common share is computed in accordance with the treasury stock method. The effect of potentially issuable common shares from outstanding stock options, restricted stock unit awards and warrants are anti-dilutive for all periods presented.

Warrants

We account for warrants pursuant to the authoritative guidance on accounting for derivative financial instruments indexed to, and potentially settled in, a company’s own stock, on the understanding that in compliance with applicable securities laws, the warrants require the issuance of registered securities upon exercise and therefore do not sufficiently preclude an implied right to net cash settlement. We have warrants classified as equity and these are not reassessed for their fair value at the end of each reporting period. Warrants classified as equity are initially measured at their fair value and recognized as part of stockholders’ equity. Determining the appropriate fair-value model and calculating the fair value of registered warrants requires considerable judgment, including estimating stock price volatility and expected warrant life. The computation of expected volatility was based on the historical volatility of comparable companies from a representative peer group selected based on industry and market capitalization. A small change in the

75

estimates used may have a relatively large change in the estimated valuation. We use the Black-Scholes pricing model to value the warrants.

Reporting Currency and Foreign Currency Translation

Our functional and reporting currency is the U.S. dollar. Revenues and expenses denominated in other than U.S. dollars are translated at average monthly rates.

The functional currency of our foreign subsidiary is the U.S. dollar. For this foreign operation, assets and liabilities denominated in other than U.S. dollars are translated at the period-end rates for monetary assets and liabilities and historical rates for non-monetary assets and liabilities. Revenues and expenses denominated in other than U.S. dollars are translated at average monthly rates. Gains and losses from this translation are recognized in the consolidated statement of loss and comprehensive loss.

Recent Accounting Standards

In December 2023, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures”. This guidance is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to disclosure regarding rate reconciliation and income taxes paid both in the U.S. and in foreign jurisdictions. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024 on a prospective basis, with the option to apply the standard retrospectively. Early adoption is permitted. We are evaluating this standard to determine if adoption will have a material impact on our consolidated financial statements.

In November 2024, the FASB issued ASU2024-03 "Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses". The standard will require additional disclosure of the nature of expenses included in the income statement in response to longstanding requests from investors for more information about an entity’s expenses. The new standard requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. ASU2024-03 applies to all public business entities and is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods within annual reporting periods beginning after December 15, 2027. The requirements will be applied prospectively with the option for retrospective application. Early adoption is permitted. We are evaluating this standard to determine if adoption will have a material impact on our consolidated financial statements.

Recent Adopted Accounting Policies

In November 2023, the FASB issued ASU2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which is intended to provide enhanced segment disclosures. The standard will require disclosures about significant segment expenses and other segment items and identifying the Chief Operating Decision Maker and how they use the reported segment profitability measures to assess segment performance and allocate resources. These enhanced disclosures are required for all entities on an interim and annual basis, even if they have only a single reportable segment. The standard is effective for years beginning after December 15, 2023, and interim periods within annual periods beginning after December 15, 2024 and early adoption is permitted. The adoption of this standard did not have a significant impact on our financial position or results of operations.

3. FINANCIAL INSTRUMENTS AND RISK

Concentration of Cash and Cash Equivalents Risk

We place our cash primarily in commercial checking accounts with various financial institutions. As of December 31, 2024, approximately $0.2 million of our cash and $1.8 million of our cash equivalents (Note 7 – Fair Value Measurements) is held in a single financial institution, SVB, as required by the covenants of our New Debt Agreement (Note 9 – Convertible Debt). Our commercial bank balances exceed federal insurance limits.

76

We have not experienced any losses in our cash and cash equivalents for the years ended December 31, 2024 and 2023.

Concentration of Credit Risk

For certain of our financial instruments, including cash and cash equivalents, accounts payable, accrued liabilities other, accrued clinical liabilities and accrued compensation carrying values approximate fair value due to their short-term nature. Our cash equivalents are recorded at fair value.

Financial risk is the risk to our results of operations that arises from fluctuations in interest rates and foreign exchange rates and the degree of volatility of these rates as well as credit risk associated with the financial stability of the issuers of the financial instruments. Foreign exchange rate risk arises as a portion of our expenses are denominated in other than U.S. dollars.

We invest our excess cash in accordance with investment guidelines, which limit our credit exposure for securities to any one financial institution or corporation other than securities issued by the U.S. government. We only invest in A (or equivalent) rated securities with maturities of one year or less. These securities generally mature within one year or less and in some cases are not collateralized. At December 31, 2024 the average days to maturity of our portfolio of cash equivalents and marketable securities was 67 days. We do not use derivative instruments to hedge against any of these financial risks.

4. GOVERNMENT GRANT

In July 2021, we announced that we were awarded a grant from the National Institute on Drug Abuse, or NIDA, of the National Institutes of Health, or NIH, to evaluate the use of cytisinicline as a treatment for cessation of nicotine e-cigarette use. This initial grant award, in the amount of $0.3 million, commenced on August 1, 2021, and was utilized to complete critical regulatory and clinical operational activities, such as protocol finalization, clinical trial site identification, drug packaging, and submission of a new Investigational New Drug Application, or IND, to the U.S. Food and Drug Administration, or FDA, for investigating cytisinicline in nicotine e-cigarette users.

In November 2021, we announced that the FDA had completed their review and accepted the IND, to investigate cytisinicline as a cessation treatment in this population. In June 2022, following NIH review of completed milestones, we announced that we were awarded the next grant funding from the NIDA in the amount of approximately $2.5 million, which we have used to conduct the ORCA-V1 Phase 2 clinical trial.

In June 2022, we announced the initiation of the ORCA-V1 Phase 2 clinical trial. ORCA-V1 evaluated the efficacy and safety of 3 mg cytisinicline dosed three times daily compared to placebo in approximately 160 adult e-cigarette users at five clinical trial locations in the United States. Participants were randomized to receive cytisinicline or placebo for 12 weeks in combination with standard cessation behavioral support.

The NIDA/NIH grant for ORCA-V1 was fully utilized as of the first quarter of 2024 and we have received the full amount of approximately $2.5 million in reimbursements from NIDA/NIH. We do not expect to receive any further reimbursements from this grant. For the years ended December 31, 2024 and 2023 we incurred $16,000 and $1.2 million, respectively, in qualifying R&D expenditures under the NIDA/NIH grant which has been recorded as a reduction in R&D expense. From inception of the grant award to December 31, 2024, we have received approximately $2.5 million in reimbursements from NIDA/NIH.

The grant award is expected to cover approximately half of the total ORCA-V1 clinical study costs. The Primary Investigators for the grant are Dr. Cindy Jacobs our Chief Medical Officer, and Dr. Nancy Rigotti, Professor of Medicine at Harvard Medical School and Director, Tobacco Research and Treatment Center, Massachusetts General Hospital.

5. INTANGIBLES

All of our intangible assets are subject to amortization and are amortized using the straight-line method over their estimated useful life.

We acquired license and supply agreements, in relation to cytisinicline, upon the acquisition of Extab Corporation, or Extab, in 2015. The agreements were determined to have a fair value of $3.1 million with an estimated useful life of 14 years.

77

The components of intangible assets were as follows:

	December 31, 2024							December 31, 2023
	Gross Carrying		Accumulated			Net Carrying		Gross Carrying		Accumulated			Net Carrying
	Value		Amortization			Value		Value		Amortization			Value
License Agreements	$	3,117	$	(2,143	)	$	974	$	3,117	$	(1,920	)	$	1,197

For the years ended December 31, 2024 and 2023 we recorded license agreement amortization expense of $0.2 million and $0.2 million, respectively. The following table outlines the estimated future amortization expense related to intangible assets held as of December 31, 2024:

Year Ending December 31,
2025		223
2026		223
2027		223
2028		223
2029		82
Total	$	974

We evaluate the carrying amount of intangible assets periodically by taking into account events or circumstances that may warrant revised estimates of useful life or that indicate the asset may be impaired. We conducted an impairment analysis for long lived assets, including the license and supply agreements for the active pharmaceutical ingredient cytisinicline, and concluded that there were no indicators of impairment identified as of December 31, 2024.

6. LICENSE AGREEMENTS

Sopharma License and Supply Agreements

We are party to a license agreement, or the Sopharma License Agreement, and a supply agreement, or the Sopharma Supply Agreement, with Sopharma, AD, or Sopharma. Pursuant to the Sopharma License Agreement, we were granted access to all available manufacturing, efficacy and safety data related to cytisinicline, as well as a granted patent in several European countries related to new oral dosage forms of cytisinicline providing enhanced stability. Additional rights granted under the Sopharma License Agreement include the exclusive use of, and the right to sublicense, certain cytisinicline trademarks in all territories described in the Sopharma License Agreement. Under the Sopharma License Agreement, we agreed to pay a nonrefundable license fee. In addition, we agreed to make certain royalty payments equal to a mid-single digit percentage of all net sales of cytisinicline products in our territory during the term of the Sopharma License Agreement, including those sold by a third party pursuant to any sublicense which may be granted by us. To date, any amounts paid to Sopharma pursuant to the Sopharma License Agreement have been immaterial.

Share Purchase Agreement

On May 14, 2015, we entered into a Share Purchase Agreement with Sopharma to acquire 75% of the outstanding shares of Extab for $2.0 million in cash and $2.0 million in a deferred payment, contingent on regulatory approval of cytisinicline by the FDA or the European Medicines Agency. The fair value of the contingent consideration on the acquisition date was nil. The contingent consideration liability is measured at fair value in our financial statements,.

As of December 31, 2024, the fair value of the contingent consideration was estimated to be $1.1 million (see Note 2 "Significant Accounting Policies, Sopharma Share Purchase Agreement Contingent Consideration" in the accompanying consolidated Financial Statements). We recognized losses of $0.6 million and $0.5 million for the years ended December 31, 2024 and 2023 respectively.

University of Bristol License Agreement

In July 2016, we entered into a license agreement with the University of Bristol, or the University of Bristol License Agreement. Under the University of Bristol License Agreement, we received exclusive and nonexclusive licenses from the University of Bristol to certain patent and technology rights resulting from research activities into cytisinicline and its derivatives, including a number of patent applications related to novel approaches to cytisinicline binding at the nicotinic receptor level.

In consideration of rights granted by the University of Bristol, we paid a nominal license fee and agreed to pay amounts of up to $3.2 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones

78

resulting from activities covered by the University of Bristol License Agreement. Additionally, if we successfully commercialize any product candidates subject to the University of Bristol License Agreement, we are responsible for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products.

On January 22, 2018, we and the University of Bristol entered into an amendment to the University of Bristol License Agreement. Pursuant to the amended University of Bristol License Agreement, we received exclusive rights for all human medicinal uses of cytisinicline across all therapeutic categories from the University of Bristol from research activities into cytisinicline and its derivatives. In consideration of rights granted by the amended University of Bristol License Agreement, we agreed to pay an initial amount of $37,500 upon the execution of the amended University of Bristol License Agreement, and additional amounts of up to $1.7 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones resulting from activities covered by the amended University of Bristol License Agreement, in addition to amounts under the original University of Bristol License Agreement of up to $3.2 million in the aggregate, tied to specific financing, development and commercialization milestones. Additionally, if we successfully commercialize any product candidate subject to the amended University of Bristol License Agreement or to the original University of Bristol License Agreement, we will be responsible, as provided in the original University of Bristol License Agreement, for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products. Up to December 31, 2024, we had paid the University of Bristol $125,000 pursuant to the University of Bristol License Agreement.

7. FAIR VALUE MEASUREMENTS

Assets and liabilities recorded at fair value in the balance sheets are categorized based upon the level of judgment associated with the inputs used to measure their fair value. For certain of our financial instruments including amounts receivable and accounts payable the carrying values approximate fair value due to their short-term nature.

ASC 820 “Fair Value Measurements and Disclosures” specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. In accordance with ASC 820, these inputs are summarized in the three broad levels listed below:

•Level 1 – Quoted prices in active markets for identical securities.

•Level 2 – Other significant inputs that are observable through corroboration with market data (including quoted prices in active markets for similar securities).

•Level 3 – Significant unobservable input that reflects management’s best estimate of what market participants would use in pricing the asset or liability.

As quoted prices in active markets are not readily available for certain financial instruments, we obtain estimates for the fair value of financial instruments through third-party pricing service providers.

In determining the appropriate levels, we performed a detailed analysis of the assets and liabilities that are subject to ASC 820.

We invest our excess cash in accordance with investment guidelines that limit the credit exposure to any one financial institution other than securities issued by the U.S. Government. These securities are not collateralized and mature within one year.

A description of the valuation techniques applied to our financial instruments measured at fair value on a recurring basis follows.

Financial Instruments

79

The following tables present information about our assets and liabilities that are measured at fair value on a recurring basis, and indicate the fair value hierarchy of the valuation techniques we utilized to determine such fair value (in thousands):

December 31, 2024	Level 1		Level 2		Level 3		Total
Assets
Money market securities (cash equivalents)	$	12,135	$	—	$	—	$	12,135
Restricted cash		20		—		—		20
US government securities		—		9,473		—		9,473
Corporate bonds		—		12,134		—		12,134
Total assets	$	12,155	$	21,607	$	—	$	33,762
Liabilities
Convertible debt	$	—		9,430	$	—	$	9,430
Contingent consideration		—		—		1,149		1,149
Total liabilities	$	—	$	9,430	$	1,149	$	10,579

December 31, 2023	Level 1		Level 2		Level 3		Total
Assets
Money market securities (cash equivalents)	$	14,252	$	—	$	—	$	14,252
Restricted cash		50		—		—		50
Total assets	$	14,302	$	—	$	—	$	14,302
Liabilities
Convertible debt	$	—	$	16,652	$	—	$	16,652
Contingent consideration		—		—		528		528
Total liabilities	$	—	$	16,652	$	528	$	17,180

Money Market Securities

Money market securities are classified within Level 1 of the fair value hierarchy and are valued based on quoted prices in active markets for identical securities.

Cash and cash equivalents (in thousands):

			Gross		Gross
	Amortized		Unrealized		Unrealized		Estimated
December 31, 2024	Cost		Gains		Losses		Fair Value
Money market securities		12,135		—		—		12,135
Total cash and cash equivalents	$	12,135	$	—	$	—	$	12,135
Money market securities (restricted cash)		20		—		—		20
Total restricted cash	$	20	$	—	$	—	$	20

			Gross		Gross
	Amortized		Unrealized		Unrealized		Estimated
December 31, 2023	Cost		Gains		Losses		Fair Value
Money market securities		14,252		—		—		14,252
Total cash and cash equivalents	$	14,252	$	—	$	—	$	14,252
Money market securities (restricted cash)		50		—		—		50
Total restricted cash	$	50	$	—	$	—	$	50

We only invest in A (or equivalent) rated securities. All securities included in cash and cash equivalents had maturities of 90 days or less at the time of purchase.

Corporate and Other Debt Corporate Bonds and Commercial Paper

The fair value of corporate bonds and commercial paper is estimated using recently executed transactions, market price quotations (where observable), bond spreads or credit default swap spreads adjusted for any basis difference between cash and derivative

80

instruments. The spread data used are for the same maturity as the bond. If the spread data does not reference the issuer, then data that reference a comparable issuer are used. When observable price quotations are not available, fair value is determined based on cash flow models with yield curves, bond or single name credit default swap spreads and recovery rates based on collateral values as significant inputs. Corporate bonds and commercial paper are generally categorized in Level 2 of the fair value hierarchy; in instances where prices, spreads or any of the other aforementioned key inputs are unobservable, they are categorized in Level 3 of the hierarchy.

			Gross		Gross
	Amortized		Unrealized		Unrealized		Estimated
December 31, 2024	Cost		Gains		Losses		Fair Value
US government securities	$	9,461	$	—	$	12	$	9,473
Corporate bonds		12,119		—		15		12,134
Total marketable securities	$	21,580	$	—	$	27	$	21,607

Fair Value of Long-Term Debt

Convertible Debt

The principal amount, carrying value and related estimated fair value of our convertible debt reported in the consolidated balance sheets as of December 31, 2024 and December 31, 2023 was as follows (in thousands). The aggregate fair value of the principal amount of the convertible debt is a Level 2 fair value measurement.

	December 31, 2024						December 31, 2023
	Principal		Carrying		Fair		Principal		Carrying		Fair
	Amount		Value		Value		Amount		Value		Value
2023 SVB Convertible Debt	$	—	$	—	$	—	$	15,000	$	16,662	$	16,652

	December 31, 2024						December 31, 2023
	Principal		Carrying		Fair		Principal		Carrying		Fair
	Amount		Value		Value		Amount		Value		Value
2024 SVB Convertible Debt	$	10,000	$	9,837	$	9,430	$	—	$	—	$	—

Fair Value of Sopharma Share Purchase Agreement Contingent Consideration

We determine the fair value of the contingent consideration using a probability based discounted cash flow model whereby we forecast the timing of the cash flow of the related future payment based on cytisinicline's current clinical development phase and the remaining requirements for regulatory approval. We then discount the expected payment amount to calculate the present value and then apply a probability of success in obtaining regulatory approval as of the valuation date. We evaluate the underlying projection used in determining the fair value each period and make updates as necessary.

The significant assumptions we use to value the contingent consideration are the forecasted timing of the future payment, the risk-adjusted discount rate and the probability of success which are all considered significant unobservable inputs, and as such, the liability is classified as a Level 3 measurement. The risk-adjusted discount rate is adjusted for credit risk.

An increase in the discount rate and decrease in the probability of success will result in a decrease in the fair value of the contingent consideration. Conversely, a decrease in the discount rate and increase in the probability of success will result in an increase in the fair value of the contingent consideration. At December 31, 2024 the risk adjusted discount rate was 30.8% and the probability of success was 90.6%. Adjustments to the fair value of the contingent liabilities, other than payments, are recorded as a gain or loss in the Consolidated Statements of Loss and Comprehensive Loss.

	Opening
	Balance at		Change in		Balance at
(in thousands)	December 31, 2023		Fair Value		December 31, 2024
Contingent consideration	$	528	$	621	$	1,149

81

8. PROPERTY AND EQUIPMENT

Property and equipment consisted of the following (in thousands):

			Accumulated		Net Book
	Cost		Depreciation		Value
December 31, 2024
Computer equipment	$	114	$	108	$	6
Furniture and fixtures		28		28		—
Leasehold improvements		25		25		—
Computer software		77		75		2
Equipment under capital lease		12		12		—
Total property and equipment	$	256	$	248	$	8

9. CONVERTIBLE DEBT

On December 22, 2021, we entered into a $25.0 million contingent convertible debt agreement, or Original Debt Agreement, with SVB, and SVB Innovation Credit Fund VIII, L.P., or, together with SVB, the Lenders. As part of the Original Debt Agreement, the Lenders funded $15.0 million in the form of convertible indebtedness, or Convertible Debt, at closing. On April 26, 2022, we entered into (i) a loan and security agreement, or Loan Agreement, with SVB for the remaining $10.0 million remaining in the Original Debt Agreement, pursuant to which SVB provided a commitment to extend term loans having an aggregate original principal amount of up to $10.0 million, or Term Loans, and (ii) a first amendment to the Original Debt Agreement, or the Amendment. The availability of Term Loans under the Loan Agreement expired on April 30, 2023, with no amounts drawn under the facility.

On May 15, 2023, we entered into a contingent convertible debt agreement, or Debt Agreement, with the Lenders, pursuant to which the Lenders provided term loans having an aggregate original principal amount of $16.6 million, or the Convertible Term Loan. The Convertible Debt under the Original Debt Agreement was refinanced as the Convertible Term Loan pursuant to the Debt Agreement. Our obligations under the Loan Agreement, Original Debt Agreement, Amendment and Convertible Debt were satisfied in full and the Loan Agreement, Original Debt Agreement, Amendment and Convertible Debt were terminated in connection with the entrance into the Debt Agreement and Convertible Term Loan.

On July 25, 2024, we entered into a contingent convertible debt agreement, or New Debt Agreement, with SVB, a division of FCB, in its capacity as administrative agent and collateral agent, and FCB, as a lender, or Lender, pursuant to which the Lender provided term loans having an aggregate original principal amount of $10.0 million, with additional term loans of up to $10.0 million available upon the occurrence of certain events as provided for in the New Debt Agreement and further described below, or New Convertible Term Loan. Our obligations under the New Debt Agreement are secured by substantially all of our assets, other than intellectual property.

The New Debt Agreement refinanced the Debt Agreement. Our obligations under the Debt Agreement and Convertible Term Loan were satisfied in full and the Debt Agreement and Convertible Term Loan were terminated in connection with the entrance into the New Debt Agreement and New Convertible Term Loan. The New Convertible Term Loan matures on December 1, 2027, which maturity date may be extended to June 1, 2028 upon the occurrence of certain events as provided for in the New Debt Agreement. The first tranche of the New Convertible Term Loan, which was advanced on July 25, 2024, has an aggregate original principal amount of $10.0 million. The Lender will further make available to us, upon our request: (a) on or prior to October 31, 2025, a second tranche of the New Convertible Term Loan having an aggregate principal amount of $5.0 million in the event that we receive written notice that the FDA has accepted for filing our NDA with respect to cytisinicline for a smoking cessation indication, or the Additional Term Loan Event I, and (b) on or prior to December 31, 2025, a third tranche of the New Convertible Term Loan having an aggregate principal amount of $5.0 million, subject to the Lender’s sole discretion. Interest is calculated on the outstanding principal amount of the New Convertible Term Loan at a floating rate per annum equal to the greater of (i) 7.0% and (ii) the prime rate minus 1.0%, which interest shall be payable in cash monthly in arrears and shall be payable on the earlier to occur of (x) the first day of the first month following any extension of credit by the Lender for our credit, (y) the date of any prepayment pursuant to the New Debt Agreement, or (z) the maturity date. The New Convertible Term Loan will be “interest-only” until December 31, 2025, subject to extension as provided for in the New Debt Agreement. The “interest-only” period may be extended to June 30, 2026, if (i) prior to December 31, 2025, we have received at least $40,000,000 in net cash proceeds from the issuance equity interests and (ii) the conditions of Additional Term Loan Event I have been satisfied.

Subject to certain terms and conditions, the conversion feature grants the Lender or, pursuant to an assignment, any designee thereof, or Conversion Right Holders, (as defined in the New Debt Agreement), the right to convert part or all of the outstanding aggregate original principal amount of the New Convertible Term Loan, plus accrued and unpaid interest, into shares of our common stock at a conversion price equal to $7.00, subject to customary adjustment provisions. The Conversion Right Holders have the further right to

82

convert part or all of the outstanding principal amount of the second and third tranches of the New Convertible Term Loan, plus accrued and unpaid interest, into shares of our common stock at a conversion price equal to the greater of (i) $4.854, subject to customary adjustment provisions, and (ii) the lower of (a) 150% of the average of the closing sale price of our common stock during the 10 trading days preceding the effective date of such tranche and (b) 150% of the closing sale price of our common stock on the trading day immediately preceding the effective date of such tranche.

The conversion rights may be exercised at each Conversion Right Holder's option any time prior to repayment of the New Convertible Term Loan; provided, however, that the Conversion Right Holders will not be permitted to convert part or all of the outstanding aggregate original principal amount of the New Convertible Term Loan without the agreement of the relevant Conversion Right Holder and us if the sum of the amount of debt to be converted; and the aggregate amount of debt previously converted pursuant to any such voluntary conversion, divided by the aggregate of all debt that is then outstanding or that has been repaid other than by conversion exceeds 50%.

Additionally, the outstanding principal of the New Convertible Term Loan, plus accrued and unpaid interest, will automatically be converted into shares of our common stock at the applicable conversion price on such date if any, when the closing price per share of our common stock has been equal to or greater than (a) in the case of the outstanding aggregate original principal amount of the New Convertible Term Loan, plus accrued and unpaid interest, $24.00 or, (b) in the case of the outstanding principal amount of the second and third tranches of the New Convertible Term Loan, plus accrued and unpaid interest, three times the applicable conversion price, in each case for the thirty consecutive trading days prior to such date, and the Liquidity Conditions (as defined in the New Debt Agreement) have been satisfied.

The New Convertible Term Loan may be repaid at our election and upon notice to the Agent (as defined in the New Debt Agreement) by paying the Lender an amount equal to (i) a prepayment fee equal to (a) 3.0% of the aggregate outstanding principal balance if such prepayment occurs on or prior to the first anniversary of the New Convertible Term Loan, (b) 2.0% of the aggregate outstanding principal balance if such prepayment occurs after the first anniversary, but on or prior to the second anniversary, of the New Convertible Term Loan or (c) 1.0% of the aggregate outstanding principal balance if such prepayment occurs after the second anniversary of the New Convertible Term Loan and before the maturity date; (ii) 4.0% of the original aggregate principal amount of the New Convertible Term Loan and (iii) all other sums due and payable under the New Convertible Term Loan.

The New Debt Agreement contains customary affirmative and restrictive covenants, including covenants regarding the incurrence of additional indebtedness or liens, investments, transactions with affiliates, delivery of financial statements, payment of taxes, maintenance of insurance, dispositions of property, mergers or acquisitions, among other customary covenants. We are also restricted from paying dividends or making other distributions or payments on our capital stock, subject to limited exceptions. The New Debt Agreement also includes customary representations and warranties, events of default and termination provisions. The Lender may not engage in any short sales of, or other hedging transactions in, our common stock while any amounts are outstanding under the New Debt Agreement.

In connection with the New Debt Agreement, we entered into a Registration Rights Agreement, or RRA, with the Lender, pursuant to which we registered for resale shares of our common stock issuable to the Conversion Right Holders upon the conversion of outstanding debt under the New Debt Agreement. Our obligations under the RRA will terminate with respect to a holder of applicable registrable securities if, as of the date we would be required to provide written notice of such registration, (x) the aggregate number of registrable securities then issued and issuable to such holder and to such holder’s affiliates, together with all other shares then held beneficially and/or of record by such holder and its affiliates, does not exceed 7.0% of our then-total shares issued and outstanding (calculated including all such registrable securities and other shares), or (y) we and such holder mutually reasonably agree that all registrable securities then issued and issuable to such holder and its affiliates may then be sold by such holder without the requirement to be in compliance with Rule 144 promulgated under the Securities Act, or Rule 144, and otherwise without restriction or limitation pursuant to Rule 144.

Under ASU 2020-06 the embedded conversion feature was not required to be bifurcated and recognized separately, as a result the convertible debt including the conversion feature has been recognized as a single unit of debt.

The debt refinancing under the New Debt Agreement was recognized as an extinguishment of debt under ASC 470-50, and the difference between the reacquisition price and carrying value was recognized on the Consolidated Statement of Loss as a loss on extinguishment of debt. Associated third-party issuance costs have been recognized against the single unit of debt and will be amortized into interest expense over the term of the loan.

83

As of December 31, 2024, the Convertible Term Loan and New Convertible Term Loan balances were comprised of the following:

	Year Ended
	December 31,
	2024		2023
Convertible Term Loan Information
Principal	$	—	$	15,000
Transaction Costs		—		(5	)
Accrued paid-in-kind interest		—		2,311
Discount on modification of debt		—		(1,074	)
Accretion of discount on modification of debt		—		430
		—		16,662

	Year Ended
	December 31,
	2024			2023
New Convertible Term Loan Information
Principal	$	10,000		$	—
Transaction costs		(186	)		—
Amortization of transaction costs		23			—
		9,837			—

10. INCOME TAX

[a] We are a Delaware incorporated company subject to blended U.S. Federal and state statutory rates for December 31, 2024, 2023 and 2022 of 21%. For the purposes of estimating the tax rate in effect at the time that deferred tax assets and liabilities are expected to reverse, management uses the furthest out available future tax rate in the applicable jurisdictions.

U.S. and foreign components of income (loss) before income taxes were as follows (in thousands):

(In thousands)	2024			2023			2022
U.S.	$	(39,532	)	$	(28,982	)	$	(41,660	)
Foreign		(295	)		(833	)		(690	)
Income (loss) before income taxes	$	(39,827	)	$	(29,815	)	$	(42,350	)

Income tax expense/(recovery) consisted of the following (in thousands):

(In thousands)	2024			2023			2022
Income tax recovery at statutory rates (at a rate of 21% for all years presented)	$	(8,364	)	$	(6,261	)	$	(8,894	)
Expenses not deducted for tax purposes		906			477			299
Effect of tax rate changes on deferred tax assets and liabilities		—			(169	)		(18	)
Rate differential on foreign earnings		(14	)		(36	)		(26	)
Research and development tax credits		(1,085	)		(883	)		(1,154	)
Change in valuation allowance		8,669			7,686			10,464
Reassessment of previously recognized net operating losses		—			—			9
Adjustment to prior year research and development tax credits		—			(760	)		(731	)
Other		(112	)		(54	)		51
Income tax expense/(recovery)	$	—		$	—		$	—

84

[b] The tax effects of the temporary differences and carryforwards that give rise to deferred tax assets and liabilities are as follows (in thousands):

	2024			2023
Deferred tax assets
Tax basis in excess of book value of assets	$	899		$	899
Net operating loss carryforwards		54,553			48,867
Research and development deductions and credits		11,800			10,716
Stock options		1,535			1,134
Capitalized R&D expenses		12,840			11,528
Other		533			434
Total deferred tax assets		82,160			73,578
Valuation allowance		(81,830	)		(73,232	)
Net deferred tax assets		330			346
Deferred tax liabilities
Right-of-use asset		(122	)		(91	)
Other		(208	)		(255	)
Total deferred tax liabilities		(330	)		(346	)
Net deferred tax liabilities		—			—

85

A valuation allowance is recorded when it is more likely than not that all or some portion of the deferred tax assets, or DTAs, will not be realized. Management assesses the need for a valuation allowance against the deferred tax assets when considering both positive and negative evidence related to whether it is more likely than not that the deferred tax assets will be realized. In evaluating the ability to recover the deferred tax assets within the jurisdiction from which they arise, all available positive and negative evidence is considered, including scheduled reversals of deferred tax liabilities, projected future growth, tax-planning strategies, and results of recent operations.

Due to the uncertainty surrounding the realization of deductible tax attributes in future tax returns, we have recorded a valuation allowance for deferred tax assets of $81.8 million to reduce the DTAs to zero as of December 31, 2024. The valuation allowance increased by approximately $8.6 million during the year ended December 31, 2024. The amount of the DTA considered realizable, however, could be adjusted if estimates of future taxable income during the carryforward period increased or if objective negative evidence in the form of cumulative losses is no longer present and additional weight is given to subjective evidence such as our projections for growth.

We have total net operating loss carryforwards for federal tax purposes of approximately $116.8 million ($90.2 million—2023) as of December 31, 2024, some of which will begin to expire in 2029. Approximately $106.7 million of the federal net operating losses will carryforward indefinitely. Federal net operating losses generated after January 1, 2018 were originally available to offset 80% of taxable income for any given future tax year and will be carried forward indefinitely. We have research and development tax credit carryforwards of approximately $5.1 million ($4.0 million—2023) as of December 31, 2024, which will begin to expire in 2037. The operating loss carryforwards and research and development tax credits may be limited due to a change in control in our ownership as defined by the Internal Revenue Code, or IRC, Section 382. Sections 382 and 383 of the IRC limit the utilization of tax attribute carryforwards that arise prior to certain cumulative changes in a corporation's ownership. Our attribute carryforwards may be limited due to a change of control in ownership as defined by Section 382. Due to the existence of the valuation allowance, future changes in our unrecognized tax benefits will not impact our effective tax rate. Any future changes in our ownership may limit the use of such carryforward benefits.

Our effective income tax rate for the periods presented differ from the statutory rate of 21% primarily due to current year net losses and the full valuation allowance on the U.S. deferred tax assets. We file income tax returns in the United States, Canada, and the United Kingdom, or U.K. At December 31, 2024, we have Canadian non-capital loss carryforwards of $107.3 million ($107.0 million—2023) and research tax credits of $2.7 million ($2.7 million—2023), both of which will begin to expire in 2025. In addition, we have unclaimed tax deductions of approximately $15.8 million related to scientific research and experimental development expenditures available to carry forward indefinitely to reduce Canadian taxable income of future years. The U.K. net operating loss carryforwards of $4.2 million (2023—$4.0 million) will carry forward indefinitely. As of December 31, 2024 and 2023, there are no tax penalties or accrued interest recorded in the financial statements.

[c] A reconciliation of the unrecognized tax benefits of uncertain tax positions for the year ended December 31, 2024 is as follows (in thousands):

	Year ended
	December 31,
	2024		2023		2022
Gross unrecognzed tax benefits at January 1	$	761	$	761	$	761
Additions (reductions) from tax positions taken in prior years		—		—		—
Additions (reductions) from tax positions taken in the current year		—		—		—
Tax settlements		—		—		—
Gross unrecognzed tax benefits at December 31	$	761	$	761	$	761

As of December 31, 2024, unrecognized benefits of approximately $0.8 million, if recognized, would affect our effective tax rate, and would reduce our deferred tax assets. Due to the existence of the valuation allowance, future changes in unrecognized tax benefits will have no impact on our effective tax rate. We do not anticipate that there will be a substantial change in unrecognized tax benefits within the next 12 months.

Our accounting policy is to treat interest and penalties relating to unrecognized tax benefits as a component of income taxes. As of December 31, 2024 and December 31, 2023 we had no accrued interest and penalties related to income taxes.

We are subject to taxes in Canada, the U.K. and the United States until the applicable statute of limitations expires. However, in Canada and the United States, all tax years remain subject to examination due to the carryforward of unutilized NOLs and tax credits.

86

Tax audits by their very nature are often complex and can require several years to complete. To our knowledge, we are not currently under examination by any taxing authorities.

Tax	Years open to
Jurisdiction	examination
Canada	2020 to 2024
United Kingdom	2018 to 2024
US	2021 to 2024

11. COMMON STOCK

[a] Authorized

150,000,000 authorized common voting shares, par value of $0.001, and 5,000,000 preferred shares, par value of $0.001.

[b] Issued and outstanding shares

At-the-Market Sales Agreement

On December 21, 2021, we entered into an At-the-Market Offering Sales Agreement, or ATM, with Virtu Americas, LLC, as sales agent. The ATM was terminated on February 29, 2024, and no further sales of our common stock will be made pursuant to the ATM.

Through the date of termination of the ATM, we offered and sold an aggregate of 200,000 shares of our common stock. These aggregate sales resulted in gross proceeds to us of approximately $1.5 million. During the year ended December 31, 2024, we did not sell any shares of our common stock pursuant to the ATM.

November 2022 Private Placement

In November 2022, we entered into subscription agreements with certain accredited investors pursuant to which we sold to the purchasers in a private placement transaction approximately 4,093,141 units at a purchase price of $4.625 per unit, with each unit consisting of two shares of common stock and a common stock purchase warrant to purchase one share of common stock, or the November 2022 Warrants.

The November 2022 Warrants are exercisable at a price per share of common stock of $4.50, subject to adjustment. The November 2022 Warrants are exercisable beginning on the six-month anniversary of the initial closing date of the private placement offering, May 18, 2023, or the Initial Exercise Date, and will expire on the seven year anniversary of the initial closing date of the private placement offering, or November 18, 2029. The November 2022 Warrants cannot be exercised by a warrant holder if, after giving effect thereto, such warrant holder would beneficially own more than 19.99% of our outstanding common stock. Additionally, subject to certain exceptions, if, after the Initial Exercise Date, (i) the volume weighted average price of our common stock for each of 30 consecutive trading days, or the November 2022 Measurement Period, which November 2022 Measurement Period commenced on November 18, 2022, exceeds 300% of the exercise price (subject to adjustments for stock splits, recapitalizations, stock dividends and similar transactions), (ii) the average daily trading volume for such November 2022 Measurement Period exceeds $500,000 per trading day and (iii) certain other equity conditions are met, and subject to a beneficial ownership limitation, then we may call for cancellation of all or any portion of the November 2022 Warrants then outstanding.

We received approximately $17.9 million in net proceeds from the private placement after deducting placement agent expenses and commissions and offering expenses.

May 2023 Registered Direct Offering

In May 2023, we entered into a securities purchase agreement with certain purchasers, pursuant to which we sold 3,000,000 shares of common stock at a price of $5.50 per share in a registered direct offering. The offering of the shares was made pursuant to our shelf registration statement on Form S-3, including the prospectus dated January 5, 2022 contained therein, and the prospectus supplement dated May 25, 2023.

The registered direct offering raised total gross proceeds of approximately $16.5 million, and after deducting approximately $1.2 million in placement agent fees and offering expenses, we received net proceeds of approximately $15.3 million.

87

February 2024 Registered Direct Offering and Concurrent Private Placement

In February 2024, we entered into a securities purchase agreement with certain purchasers, pursuant to which we sold 13,086,151 shares of common stock at a price of $4.585 per share in a registered direct offering. The offering of the shares was made pursuant to our shelf registration statement on Form S-3, including the prospectus dated January 5, 2022 contained therein, and the prospectus supplement dated February 28, 2024.

In a concurrent private placement, we issued unregistered warrants to purchase up to 13,086,151 shares of common stock at an exercise price of $4.906 per share (provided, however, that the purchaser may elect to exercise the warrants for pre-funded warrants in lieu of shares of common stock at an exercise price of $4.906, minus $0.001, the exercise price of each pre-funded warrant). These warrants are immediately exercisable for shares of common stock or pre-funded warrants in lieu thereof, and will expire on the earlier of (i) three and one-half years following the date of issuance and (ii) 30 days following our public disclosure of the acceptance of an NDA for cytisinicline by the FDA in a Day 74 Letter or equivalent correspondence. The shares of common stock issuable upon exercise of the warrants (or pre-funded warrants, as applicable) were subsequently registered pursuant to our registration statement on Form S-3, which was declared effective on May 6, 2024.

The registered direct offering raised total gross proceeds of approximately $60.0 million, and after deducting approximately $3.9 million in placement agent fees and offering expenses, we received net proceeds of approximately $56.1 million.

Jefferies Open Market Sale Agreement

On September 27, 2024, we entered into an Open Market Sale Agreement, or Sale Agreement, with Jefferies LLC, or Jefferies, as sales agent, to establish an at-the-market offering program through which we may sell shares of our common stock with an aggregate offering price of up to $50.0 million. During the year ended December 31, 2024, we did not sell any shares under the Sale Agreement. As of December 31, 2024, we had $50.0 million available under the Sale Agreement.

Equity Award Issuances and Settlements

During the year ended December 31, 2024, we did not issue any shares of common stock to satisfy stock option exercises and we issued 113,125 shares of common stock to satisfy restricted stock unit settlements. During the year ended December 31, 2023 we did not issue any shares of common to satisfy stock option exercises and we issued 139,750 shares of common stock to satisfy restricted stock unit settlements.

[c] Stock options

2024 Equity Inducement Plan

As of December 31, 2024, we had reserved, pursuant to the 2024 Equity Inducement Plan, 1,250,000 shares of common stock for issuance upon exercise of stock options and settlement of restricted stock units by employees, of which 181,000 shares were reserved for options currently outstanding, 168,000 for restricted stock units currently outstanding and 901,000 shares were available for future equity grants.

Under the 2024 Equity Inducement Plan, we may grant options to purchase shares of our common stock or restricted stock units as a material inducement to new employees for entering into employment with us. The exercise price of the options is determined by our Board but will be at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board. The expiry date for each option is set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2024 Equity Inducement Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control.

2023 Non-Employee Director Equity Incentive Plan

As of December 31, 2024, we had reserved, pursuant to the 2023 Non-Employee Director Equity Incentive Plan, or the 2023 Non-Employee Director Plan, 300,000 shares of common stock for issuance upon exercise of stock options by non-employee directors, of which 290,250 shares were reserved for options currently outstanding and 9,750 shares were available for future equity grants.

Under the 2023 Non-Employee Director Plan, we may grant options to purchase shares of our common stock or restricted stock units to our non-employee directors. The exercise price of the options is determined by our Board but will be at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board, typically over

88

one to three years. The expiry date for each option is set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2023 Non-Employee Director Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control.

2018 Equity Incentive Plan

As of December 31, 2024, we had reserved, pursuant to the 2018 Equity Incentive Plan, or the 2018 Plan, 2,667,416 common shares for issuance upon exercise of stock options and settlement of restricted stock units by employees, directors, officers and consultants of ours, of which 1,519,905 were reserved for options currently outstanding, 1,115,750 for restricted stock units currently outstanding, and 31,761 were available for future equity grants.

Under the 2018 Plan, we may grant options to purchase common shares or restricted stock units to our employees, directors, officers and consultants. The exercise price of the options is determined by our board of directors, or Board, but will be at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board, typically over three to four years for options issued to employees and consultants, and over one to three years for members of our Board. The expiry date for each option is set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2018 Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control. The terms for accelerated vesting, in the event of a change in control, is determined at our discretion and defined under the employment agreements for our officers and certain of our employees.

New Employee Inducement Grants

We grant stock options as a material inducement to new employees for entering into employment agreements with us in accordance with Nasdaq Listing Rule 5635(c)(4). The stock options approved under the inducement grant were issued pursuant to a stock option agreement on terms substantially similar to our 2018 Equity Incentive Plan. The exercise price of the options is determined by our board of directors but will be at least equal to the fair value of the common shares at the grant date. The options vest in accordance with terms as determined by our board of directors. The expiry date for each option is set by our board of directors with a maximum expiry date of ten years from the date of grant. For the year ended December 31, 2024 we did not grant stock options to new employees under this plan. As of December 31, 2024, 135,000 stock options granted as new employee inducement grants were outstanding.

2017 Equity Incentive Plan

As of December 31, 2024, we had reserved, pursuant to the 2017 Equity Incentive Plan, or the 2017 Plan, 13,156 common shares for issuance upon exercise of stock options, currently outstanding, by employees, directors and officers of ours. Upon the effectiveness of our 2018 Plan, we ceased granting equity awards under our 2017 Plan.

Under the 2017 Plan, we granted options to purchase shares of common stock or restricted stock units to our employees, directors, officers and consultants. The exercise price of the options was determined by our Board but was at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board, typically over three to four years for options issued to employees and consultants, and over one to three years for members of our Board. The expiry date for each option was set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2017 Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control. The terms for accelerated vesting, in the event of a change in control, is determined at our discretion and defined under the employment agreements for our officers and certain of our employees.

2010 Performance Incentive Plan

As of December 31, 2024, we had reserved, pursuant to the 2010 Performance Incentive Plan, or the 2010 Plan, 103 common shares for issuance upon exercise of stock options, currently outstanding, by employees, directors, officers and consultants of ours.

Under the 2010 Plan we granted options to purchase shares of common stock and restricted stock units to our employees, directors, officers and consultants. The exercise price of the options was determined by our board of directors and was at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board, typically over three to four years for options issued to employees and consultants, and over one to three years for members of our Board. The expiry date for each option is set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2010 Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control. The terms for accelerated vesting, in the event of a change in control, is determined at our discretion and defined under the employment agreements for our officers and certain of our employees.

89

ASC 718 Compensation – Stock Compensation

We recognize expense related to the fair value of our stock-based compensation awards using the provisions of ASC 718. We use the Black-Scholes option pricing model as the most appropriate fair value method for our stock options and recognize compensation expense for stock options on a straight-line basis over the requisite service period. In valuing our stock options using the Black-Scholes option pricing model, we make assumptions about risk-free interest rates, dividend yields, volatility and weighted average expected lives, including estimated forfeiture rates of the options.

The expected life was calculated based on the simplified method as permitted by the SEC’s Staff Accounting Bulletin 110, Share-Based Payment. We consider the use of the simplified method appropriate because of the lack of sufficient historical exercise data following the 2017 Merger Agreement between Achieve Life Sciences, Inc. and OncoGenex Pharmaceuticals. The computation of expected volatility was calculated based on the historical volatility of the shares of our common stock. The risk-free interest rate is based on a U.S. Treasury instrument whose term is consistent with the expected life of the stock options. In addition to the assumptions above, as required under ASC 718, management made an estimate of expected forfeitures and is recognizing compensation costs only for those equity awards expected to vest. Forfeiture rates are estimated using historical actual forfeiture rates. These rates are adjusted on a quarterly basis and any change in compensation expense is recognized in the period of the change. We have never paid or declared cash dividends on our common stock and do not expect to pay cash dividends in the foreseeable future.

The estimated fair value of stock options granted in the respective periods was determined using the Black-Scholes option pricing model using the following weighted average assumptions:

	2024			2023
Risk-free interest rates		4.00	%		3.60	%
Expected dividend yield		0	%		0	%
Expected life	5.74 years			5.75 years
Expected volatility		87.40	%		115.19	%
Forfeiture rate		0	%		0	%

The weighted average fair value of stock options granted during the year ended December 31, 2024 was $3.35.

The results for the periods set forth below included stock-based compensation expense in the following expense categories of the consolidated statements of loss (in thousands):

	Year ended
	December 31,
	2024		2023
Research and development	$	1,736	$	1,122
General and administrative		3,589		2,317
Total stock-based compensation	$	5,325	$	3,439

Stock option transactions and the number of stock options outstanding are summarized below:

	Number of			Weighted
	Optioned			Average
	Common			Exercise
	Shares			Price
Balance, January 1, 2024		1,461,980		$	12.12
Granted		677,500			4.54
Expired		(66	)		17,565.33
Balance, December 31, 2024		2,139,414		$	9.18

90

The following table summarizes information about stock options outstanding at December 31, 2024 regarding the number of ordinary shares issuable upon: (1) outstanding options and (2) vested options.

(1) Number of common shares issuable upon exercise of outstanding options:

					Weighted-
					Average
					Remaining
			Weighted-		Contractual
			Average		Life
Exercise Prices	Number of Options		Exercise Price		(in years)
$4.52 - $4.52		211,000	$	4.52		9.93
$4.53 - $4.54		25,000		4.53		8.20
$4.55 - $4.72		466,500		4.55		9.06
$4.73 - $4.99		409,750		4.90		8.07
$5.00 - $5.99		156,750		5.88		8.17
$6.00 - $7.89		167,200		6.68		7.52
$7.90 - $8.43		226,250		8.26		7.01
$8.44 - $11.65		189,630		10.61		5.57
$11.66 - $20.74		238,400		13.07		6.07
$20.75 - $4,158.00		48,934		110.49		3.71
		2,139,414	$	9.18		7.78

(2) Number common shares issuable upon exercise of vested options:

					Weighted-
					Average
					Remaining
			Weighted-		Contractual
			Average		Life
Exercise Prices	Number of Options		Exercise Price		(in years)
$4.52 - $4.52		—	$	—		—
$4.53 - $4.54		10,937		4.53		8.20
$4.55 - $4.72		50,000		4.55		9.06
$4.73 - $4.99		295,499		4.90		8.07
$5.00 - $5.99		92,064		5.88		8.16
$6.00 - $7.89		148,734		6.62		7.59
$7.90 - $8.43		221,353		8.26		7.01
$8.44 - $11.65		189,630		10.61		5.57
$11.66 - $20.74		234,802		13.07		6.07
$20.75 - $4,158.00		48,934		110.49		3.71
		1,291,953	$	12.05		6.98

As at December 31, 2024, and December 31, 2023, the total unrecognized compensation expense related to stock options granted was $2.4 million and $3.4 million, respectively, each of which is expected to be recognized into expense over a period of approximately 1.99 years.

The aggregate intrinsic value of options exercised was calculated as the difference between the exercise price of the stock options and the fair value of the underlying common stock as of the date of exercise. No options were exercised for the years ended December 31, 2024, 2023 and 2022. At December 31, 2024, the aggregate intrinsic value of the outstanding options was zero and the aggregate intrinsic value of the exercisable options was zero.

[d] Restricted Stock Unit Awards

We grant restricted stock unit awards that generally vest and are expensed over a four-year period. We also grant restricted stock unit awards that vest in conjunction with certain performance conditions to certain executive officers and key employees. At each reporting date, we are required to evaluate whether achievement of the performance conditions is probable. Compensation expense is recorded over the appropriate service period based upon our assessment of accomplishing each performance provision. For the years ended December 31, 2024, 2023 and 2022, $2.0 million, $0.9 million and $1.1 million, respectively, of stock based compensation expense was recognized related to these awards.

91

The following table summarizes our restricted stock unit award activity during the year ended December 31, 2024:

				Weighted
	Number			Average
	of			Grant Date
	Shares			Fair Value
Balance, January 1, 2024		507,875		$	5.65
Granted		889,000			4.54
Released		(113,125	)		8.26
Balance, December 31, 2024		1,283,750		$	4.65

As of December 31, 2024, we had approximately $2.3 million in total unrecognized compensation expense related to our restricted stock unit awards which is to be recognized over a weighted-average period of approximately 0.75 years.

[e] Employee Stock Purchase Plan

Our board of directors and stockholders approved the 2017 Employee Stock Purchase Plan, or ESPP, in August 2017. Contributions are made by eligible employees, subject to certain limits defined in the ESPP. The number of shares available for future purchases under the ESPP is 507,627 shares. All shares purchased under the ESPP are new share issuances. For the year ended December 31, 2024 we recorded a compensation expense of $0.2 million related to the current ESPP offering period. For the year ended December 31, 2023, no compensation expense was recognized related to our ESPP as we did not have an active offering period.

[f] Non-employee options and restricted stock units

We recognize non-employee stock-based compensation expense over the period of expected service by the non-employee. As the service is performed, we are required to update our valuation assumptions, re-measure unvested options and restricted stock units and record the stock-based compensation using the valuation as of the vesting date. This differs from the accounting for employee awards where the fair value is determined at the grant date and is not subsequently adjusted. This re-measurement may result in higher or lower stock-based compensation expense in the Consolidated Statements of Loss and Comprehensive Loss. As such, changes in the market price of our stock could materially change the value of an option or restricted stock unit and the resulting stock-based compensation expense.

[g] Common Stock Warrants

The following is a summary of outstanding warrants to purchase common stock at December 31, 2024:

	Total
	Outstanding		Exercise
	and		price per
	Exercisable		Share		Expiration Date
(1) Warrants issued in May 2019 financing		60,000	$	90.0000	May 2025
(2) Warrants issued in April 2020 financing		182,461	$	7.2400	April 2025
(3) Warrants issued in April 2020 financing		24,375	$	7.3200	April 2025
(4) Warrants issued in April 2020 financing		25,270	$	7.5900	April 2025
(5) Pre-Funded Warrants issued in August 2020 financing		142,857	$	0.0010	*
(6) Warrants issued in December 2020 financing		50,000	$	8.7500	December 2025
(7) Warrants issued in November 2022 financing		4,093,141	$	4.5000	November 2029
(8) Warrants issued in February 2024 financing		13,086,151	$	4.9060	**

* The pre-funded warrants do not have an expiration date.

**The 2024 Warrants, will expire on the earlier of (i) three and one-half years following the date of issuance and (ii) 30 days following our public disclosure of the acceptance of an NDA for cytisinicline by the FDA in a Day 74 Letter or equivalent correspondence.

The agreements governing the above warrants include the following terms:

•certain warrants have exercise prices which are subject to adjustment for certain events, including the issuance of stock dividends on our common stock and, in certain instances, the issuance of our common stock or instruments convertible into

92

our common stock at a price per share less than the exercise price of the respective warrants (specifically those issued under the December 2019 Public Offering and November 2022 Private Placement);

•warrant holders may exercise the warrants through a cashless exercise if, and only if, we do not have an effective registration statement then available for the issuance of the shares of our common stock. If an effective registration statement is available for the issuance of our common stock a holder may only exercise the warrants through a cash exercise;

•the exercise price and the number and type of securities purchasable upon exercise of the warrants are subject to adjustment upon certain corporate events, including certain combinations, consolidations, liquidations, mergers, recapitalizations, reclassifications, reorganizations, stock dividends and stock splits, a sale of all or substantially all of our assets and certain other events; and

•in the case of certain warrants, in the event of an “extraordinary transaction” or a “fundamental transaction” (as such terms are defined in the respective warrant agreements), generally including any merger with or into another entity, sale of all or substantially all of the Company’s assets, tender offer or exchange offer, or reclassification of its common stock, in which the successor entity (as defined in the respective warrant agreements) that assumes the successor entity is not a publicly traded company, the Company or any successor entity will pay the warrant holder, at such holder’s option, exercisable at any time concurrently with or within 30 days after the consummation of the extraordinary transaction or fundamental transaction, an amount of cash equal to the value of such holder’s warrants as determined in accordance with the Black Scholes option pricing model and the terms of the respective warrant agreement. In some circumstances, we or successor entity may be obligated to make such payments regardless of whether the successor entity that assumes the warrants is a publicly traded company; and

•with respect to the 2024 Warrants, in the event we consummate a “fundamental transaction,” as described in the 2024 Warrants and generally including a merger or consolidation with or into another entity or other reorganization event in which our common shares are converted or exchanged for securities, cash or other property, we are not the surviving entity and in which our stockholders immediately prior to the merger or consolidation do not own, directly or indirectly, at least 50% of the voting power of the surviving entity immediately after such merger or consolidation (excluding any merger effected solely to change the company’s name), or we sell, lease, license, assign, transfer, convey or otherwise dispose of all or substantially all of our assets or another entity acquires 50% or more of our outstanding shares of common stock, then following such event, the holders of the 2024 Warrants will be entitled to receive upon exercise of such 2024 Warrants the same kind and amount of securities, cash or property which the holders would have received had they exercised their 2024 Warrants immediately prior to such fundamental transaction. Any successor to us or surviving entity shall assume the obligations under the 2024 Warrants. Additionally, as more fully described in the 2024 Warrants, in the event of certain fundamental transactions, the holders of the 2024 Warrants will be entitled to receive consideration in an amount equal to the Black Scholes value of the 2024 Warrants on the date of consummation of such transaction.

For the year ended December 31, 2024, warrants to purchase 295,126 shares, issued in the December 2019 financing, were exercised at a per unit price of $2.31, for proceeds of $0.7 million. For the year ended December 31, 2023, warrants to purchase 98,333 shares, issued in the December 2019 financing, were exercised at a per unit price of $2.31, for proceeds of $0.2 million. As of December 31, 2024, all of our outstanding warrants are classified as equity.

[h] 401(k) Plan

We maintain a 401(k) plan. Our securities are not offered as an investment option. Our shares are prohibited for inclusion in our 401(k) plan, as well as any match of our shares to employee contributions.

[i] Loss per common share

The following table presents the computation of basic and diluted net loss attributable to common stockholders per share (in thousands, except per share and share amounts):

	Years ended December 31,
	2024			2023			2022
Numerator
Net loss	$	(39,827	)	$	(29,815	)	$	(42,350	)
Denominator
Weighted average number of common shares outstanding		32,071,146			19,827,354			10,593,034
Basic and diluted net loss per common share	$	(1.24	)	$	(1.50	)	$	(4.00	)

As of December 31, 2024, a total of 21,087,419 million shares, consisting of warrants to purchase 17,664,255 shares, options exercisable for 2,139,414 shares and 1,283,750 restricted stock units have not been included in the calculation of potential common

93

shares as their effect on diluted per share amounts would have been anti-dilutive. Additionally, the outstanding Convertible Debt due December 2024 is included in the calculation of diluted per share amounts only if its inclusion is dilutive for periods during which the notes were outstanding. As of December 31, 2024, the outstanding Convertible Debt was not included in the calculation of diluted per share amounts as its effect would have been anti-dilutive.

12. COMMITMENTS AND CONTINGENCIES

The following table summarizes our contractual obligations as of December 31, 2024 (in thousands):

	Total		Less than 1 year		1-3 years		3-5 years		More than 5 years
Vancouver office operating lease	$	131	$	63	$	68	$	—	$	—
Total	$	131	$	63	$	68	$	—	$	—

Leases

We have an operating lease for our corporate office.

Operating leases with a term of 12 months or longer are included in ROU assets, other current liabilities, and operating lease liabilities on our consolidated balance sheets. Finance leases are included in property and equipment, other current liabilities, and other long-term liabilities on our consolidated balance sheets.

Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an implicit rate, we use the incremental borrowing rate of comparable companies from a representative peer group selected based on industry and market capitalization. The operating lease ROU asset also includes any lease payments made and excludes lease incentives and initial direct costs incurred. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.

Vancouver Lease Arrangements

On November 19, 2018, we entered into a lease agreement for new office space in Vancouver, British Columbia, which commenced on February 1, 2019, and has a four-year term. Pursuant to this lease, we rent approximately 2,367 square feet of office space. On December 16, 2022, we entered into an agreement to extend the lease for another two-year term, which commenced on February 1, 2023. On December 9, 2024, we extended the lease for a further two-year term, which commenced on February 1, 2025. Pursuant to this lease, we rent approximately 2,367 square feet of office space. The annual rent is approximately $0.1 million.

The future minimum annual lease payments under the Vancouver lease are as follows (in thousands):

2025		63
2026		63
2027		5
Total	$	131

Consolidated rent and operating expense relating to the Vancouver, Canada office for years ended December 31, 2024, 2023 and 2022 was $0.1 million, $0.1 million and $0.1 million, respectively.

94

Other information related to leases was as follows:

	Year Ended
	December 31,
	2024			2023
Supplemental Cash Flows Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	59		$	57
Right-of-use assets obtained in exchange for lease obligations:
Operating leases		—			—
Weighted Average Remaining Lease Term
Operating leases	2.08 years			1.08 years
Weighted Average Discount Rate
Operating leases		8.98	%		8.98	%

Guarantees and Indemnifications

We indemnify our officers, directors and certain consultants for certain events or occurrences, subject to certain limits, while the officer or director is or was serving at its request in such capacity. The term of the indemnification period is equal to the officer’s or director’s lifetime.

The maximum amount of potential future indemnification is unlimited; however, we have obtained director and officer insurance that limits our exposure and may enable us to recover a portion of any future amounts paid. We believe that the fair value of these indemnification obligations is minimal. Accordingly, we have not recognized any liabilities relating to these obligations as of December 31, 2024.

We have certain agreements with certain organizations with which it does business that contain indemnification provisions pursuant to which it typically agrees to indemnify the party against certain types of third-party claims. We accrue for known indemnification issues when a loss is probable and can be reasonably estimated. There were no accruals for or expenses related to indemnification issues for any period presented.

95

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that material information required to be disclosed in our periodic reports filed or submitted under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Our disclosure controls and procedures are also designed to ensure that information required to be disclosed in the reports we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure.

We carried out an evaluation, under the supervision and with the participation of our management, including the principal executive officer and the principal financial officer, of the effectiveness of the design and operation of the disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based on that evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective as of December 31, 2024.

Changes in Internal Control Over Financial Reporting

We have not made any changes to our internal control over financial reporting (as defined in Rule 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter ended December 31, 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over our financial reporting, as defined in Rule 13a-15(f) under the Exchange Act. Our internal control over financial reporting is a process designed under the supervision of our principal executive and principal financial officers to provide reasonable assurance regarding the reliability of financial reporting and the preparation of our financial statements for external reporting purposes in accordance with U.S. generally accepted accounting principles.

As of December 31, 2024, management assessed the effectiveness of our internal control over financial reporting based on the framework established in “Internal Control—Integrated Framework” issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) (2013 Framework). Based on this evaluation, management has determined that our internal control over financial reporting was effective as of December 31, 2024.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

ITEM 9B. OTHER INFORMATION

Insider Trading Arrangements

During the three months ended December 31, 2024, none of our directors or officers, as defined in Rule 16a-1(f), informed us of the adoption, modification or termination of a “Rule 10b5-1 trading agreement” or “non-Rule 10b-51 trading agreement,” as those terms are defined in Regulations S-K, Item 408 .

ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

Not applicable.

96

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

Certain information required by this Item is set forth in our 2025 Proxy Statement to be filed with the SEC within 120 days of December 31, 2024, and is incorporated by reference into this Annual Report on Form 10-K.

Insider Trading Policy

We have adopted an Insider Trading Policy that governs the purchase, sale and/or other dispositions of our securities by directors, officers and employees. Our Insider Trading Policy also provides that we will not transact in any of our own securities unless in compliance with U.S. securities laws. We believe that our Insider Trading Policy is reasonably designed to promote compliance with insider trading laws, rules and regulations, and the Nasdaq listing standards applicable to us. A copy of our Insider Trading Policy is filed as Exhibit 19.1 to this Annual Report on Form 10-K.

ITEM 11. EXECUTIVE COMPENSATION

The information required by this Item is set forth in our 2025 Proxy Statement to be filed with the SEC within 120 days of December 31, 2024, and is incorporated by reference into this Annual Report on Form 10-K.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The following table sets forth certain information regarding our equity compensation plans as of December 31, 2024:

	(a)			(b)			(c)
							Number of securities
							remaining available for
	Number of securities to be						future issuance under
	issued upon exercise of			Weighted-average			equity compensation
	outstanding options,			exercise price of			plans (excluding
	restricted stock units,			outstanding options,			securities reflected in
Plan category	warrants and rights			warrants and rights			column (a))
Equity compensation plans approved by security holders		2,939,164	(1)	$	1.25	(1)		41,511	(1)
Equity compensation plans not approved by security    holders(2)		484,000		$	4.99			901,000
Total		3,423,164		$	11.97			942,511

(1)As of December 31, 2024, we maintained the following equity compensation plans, which were approved by security holders: (a) the 2010 Performance Incentive Plan, (b) the 2017 Equity Incentive Plan, (c) the 2018 Equity Incentive Plan and (d) the 2023 Non-Employee Director Equity Incentive Plan.

(2)Stock options granted under our 2024 Equity Inducement Plan as inducements to new employees for entering into employment agreements with us in accordance with Nasdaq Listing Rule 5635(c)(4).

The remaining information required by this Item is set forth in our 2025 Proxy Statement to be filed with the SEC within 120 days of December 31, 2024, and is incorporated by reference into this Annual Report on Form 10-K.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required by this Item is set forth in our 2025 Proxy Statement to be filed with the SEC within 120 days of December 31, 2024, and is incorporated by reference into this Annual Report on Form 10-K.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES

The information required by this Item is set forth in our 2025 Proxy Statement to be filed with the SEC within 120 days of December 31, 2024, and is incorporated by reference into this Annual Report on Form 10-K.

97

PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(1) Financial Statements

Report of Independent Registered Public Accounting Firm	66
Consolidated Balance Sheets as of December 31, 2024 and 2023	68
Consolidated Statements of Loss for the years ended December 31, 2024, 2023, and 2022	69
Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2024, 2023, and 2022	70
Consolidated Statements of Cash Flows for the years ended December 31, 2024, 2023, and 2022	71
Notes to Consolidated Financial Statements	72

(2) All schedules are omitted because they are not required or the required information is included in the consolidated financial statements or notes thereto.

(3) Exhibits

Exhibit Number	Description	Incorporated by Reference				Filed/ Furnished Herewith
		Form	File No.	Exhibit	Filing Date
3.1	Third Amended and Restated Certificate of Incorporation, filed June 8, 2023	8-K	033-80623	3.1	June 9, 2023
3.2	Certificate of Designation of Preferences, Rights and Limitations, with respect to the Series B Convertible Preferred Stock, filed	8-K	033-80623	3.1	December 20, 2019
3.3	Sixth Amended and Restated Bylaws	8-K	033-80623	3.1	January 5, 2017
3.4	Amendment to Sixth Amended and Restated Bylaws	10-Q	033-80623	3.1	November 7, 2018
4.1	Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934	10-K	033-80623	4.12	March 13, 2020
4.2	Specimen Certificate of Common Stock	10-Q	000-21243	4.1	November 10, 2008
4.3	Form of Preferred Stock Certificate	8-K	033-80623	4.2	June 20, 2018
4.4	Form of Common Stock Purchase Warrant (October 2018 Private Placement)	8-K	033-80623	4.1	October 1, 2018
4.5	Form of Warrant (May 2019)	8-K	033-80623	4.1	June 3, 2019
4.6	Form of Common Stock Purchase Warrant (December 2019 Offering)	8-K	033-80623	4.1	December 20, 2019
4.7	Form of Common Stock Purchase Warrant (April 2020)	8-K	033-80623	4.1	April 30, 2020
4.8	Form of Pre-Funded Warrant (August 2020)	8-K	033-80623	4.1	August 4, 2020
4.9	Form of Underwriter’s Warrant	S-1	333-250074	4.11	November 30, 2020
4.10	Form of Common Stock Purchase Warrant (November 2022)	8-K	033-80623	4.1	November 18, 2022

98

Exhibit Number	Description	Incorporated by Reference				Filed/ Furnished Herewith
		Form	File No.	Exhibit	Filing Date
4.11	Form of Common Stock Warrant (February 2024 Private Placement)	8-K	033-80623	4.1	February 29, 2024
4.12	Form of Registration Rights Agreement	8-K	033-80623	10.2	November 18, 2022
4.13	Registration Rights Agreement, dated July 25, 2024, between Achieve Life Sciences, Inc., and Silicon Valley Bank, a division of First-Citizens Bank & Trust Company	8-K	033-80623	10.2	July 29, 2024
10.1	Form of OncoGenex Pharmaceuticals, Inc. 2010 Stock Option Agreement††	8-K	033-80623	10.1	June 14, 2010
10.2	Form of OncoGenex Pharmaceuticals, Inc. 2010 Restricted Stock Unit Agreement††	10-Q	033-80623	10.2	November 3, 2011
10.3	OncoGenex Pharmaceuticals, Inc. 2010 Performance Incentive Plan, as amended and restated††	DEF 14A	033-80623	Appendix A	April 16, 2015
10.4	Achieve Life Sciences 2017 Equity Incentive Plan††	DEF 14A	033-80623	Appendix A	September 21, 2017
10.5	Form of Achieve Life Sciences Stock Option Agreement††	10-Q	033-80623	10.7b	March 1, 2018
10.6	Form of Achieve Life Sciences Restricted Stock Unit Agreement††	10-Q	033-80623	10.7c	March 1, 2018
10.7	Achieve Life Sciences 2017 Employee Stock Purchase Plan††	DEF 14A	033-80623	Appendix B	September 21, 2017
10.8	Achieve Life Sciences 2018 Equity Incentive Plan, as amended, and forms of award agreements thereunder††	10-K	033-80623	10.8	March 16, 2023
10.9	Achieve Life Sciences, Inc. 2023 Non-Employee Director Equity Incentive Plan, and forms of award agreements thereunder	DEF 14A	033-80623	Appendix B	April 28, 2023
10.10	2024 Equity Inducement Plan and forms of award agreements thereunder	S-8	333-283630	99.1	December 5, 2024
10.11	Form of Indemnification Agreement for Officers and Directors of the Company	10-K	033-80623	10.10	March 28, 2024
10.12	Form of Indemnification Agreement between OncoGenex Technologies Inc. and Cindy Jacobs††	F-1	333-139293	10.7	December 13, 2006
10.13	Employment Agreement between OncoGenex Pharmaceuticals, Inc. and John Bencich††	10-Q	033-80623	10.1	November 10, 2016
10.14	Employment Agreement between the Company and Richard Stewart, executed May 22, 2018 ††	8-K	033-80623	10.1	May 23, 2018
10.15	Amended and Restated Employment Agreement, dated September 28, 2020, by	10-Q	033-80623	10.3	November 12, 2020

99

Exhibit Number	Description	Incorporated by Reference				Filed/ Furnished Herewith
		Form	File No.	Exhibit	Filing Date
	and between Achieve Life Sciences, Inc. and John Bencich ††
10.16	Amended and Restated Employment Agreement, dated September 27, 2022, by and between Achieve Life Sciences, Inc. and Cindy Jacobs ††	10-K	033-80623	10.26	March 16, 2023
10.17	Separation and Release Agreement, dated August 26, 2024, between Achieve Life Sciences, Inc. and John Bencich	10-Q	033-80623	10.3	November 7, 2024
10.18	Executive Employment Agreement, dated August 26, 2024, between Achieve Life Sciences, Inc. and Thomas B. King	10-Q	033-80623	10.4	November 7, 2024
10.19	Executive Employment Agreement, dated December 5, 2024, between Achieve Life Sciences, Inc. and Mark K. Oki					X
10.20	Exclusive License Agreement, by and between Sopharma Joint Stock Company and Extab Corporation, dated May 26, 2009*	S-4/A	333-216961	10.21	May 3, 2017
10.21	Commercial Agreement on Supply of Pharmaceutical Products, by and between Sopharma AD and Extab Corporation, dated February 1, 2010*	S-4/A	333-216961	10.23	May 3, 2017
10.22	Variation of Contract, by and between Sopharma AD and Extab Corporation, dated May 14, 2015*	S-4/A	333-216961	10.22	May 3, 2017
10.23	Variation of Contract, by and between Sopharma AD and Extab Corporation, dated May 14, 2015*	S-4/A	333-216961	10.24	May 3, 2017
10.24	Technical and Quality Agreement, by and between Sopharma AD and Extab Corporation, dated May 14, 2015*	S-4/A	333-216961	10.25	May 3, 2017
10.25	Share Purchase Agreement, by and between Sopharma AD and Achieve Life Sciences, Inc., dated May 14, 2015*	10-K	033-80623	10.21	March 28, 2024
10.26	License of Technology, by and between University of Bristol and Achieve Life Science, Inc., dated July 13, 2016*	S-4/A	333-216961	10.27	May 3, 2017
10.27	Amendment One to License of Technology, dated January 22, 2018, by and between Achieve Life Science, Inc., and the University of Bristol*	10-Q/A	033-80623	10.1	May 23, 2018
10.28	Amended and Restated Commercial Agreement on Supply of Pharmaceutical Products, dated July 28, 2017, by and	10-Q	033-80623	10.1	November 9, 2017

100

Exhibit Number	Description	Incorporated by Reference				Filed/ Furnished Herewith
		Form	File No.	Exhibit	Filing Date
	between Achieve Life Science, Inc., and Sopharma AD*
10.29	Letter of Variation, dated September 28, 2020, by and between Achieve Pharma UK Limited and Richard Stewart††	10-Q	033-80623	10.1	November 12, 2020
10.30	Contingent Convertible Debt Agreement, dated July 25, 2024, between Achieve Life Sciences, Inc., and Silicon Valley Bank, a division of First-Citizens Bank & Trust Company	8-K	033-80623	10.1	July 29, 2024
10.31	Securities Purchase Agreement, dated as of February 28, 2024, by and among Achieve Life Sciences, Inc. and the purchasers identified on the signature pages thereto	8-K	033-80623	10.1	February 29, 2024
10.32	Open Market Sale Agreement SM, dated September 27, 2024, between Achieve Life Sciences, Inc. and Jefferies LLC	8-K	033-80623	1.1	September 27, 2024
10.33	Office Lease by and between 0846869 B.C. Ltd. and Achieve Life Sciences Technologies Inc., commencing February 1, 2019	10-K	033-80623	10.25	March, 14, 2019
10.34	Lease Extension Agreement, dated December 16, 2022, by and between 0846869 B.C. Ltd. and Achieve Life Sciences Technologies Inc.	10-K	033-80623	10.22	March 16, 2023
10.35	Office Lease by and between Regus Management Group, LLC and Achieve Life Sciences, Inc., commencing March 1, 2024	10-K	033-80623	10.32	March 28, 2024
10.36	Lease Extension Agreement by and between Regus Management Group, LLC and Achieve Life Sciences, Inc., commencing March 1, 2024					X
19.1	Insider Trading Policy					X
21.1	Subsidiaries of the Registrant					X
23.1	Consent of PricewaterhouseCoopers LLP					X
24.1	Power of Attorney (included on the signature page hereto)
31.1	Certification of Chief Executive Officer (Principal Executive Officer) pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002					X

101

Exhibit Number	Description	Incorporated by Reference				Filed/ Furnished Herewith
		Form	File No.	Exhibit	Filing Date
31.2	Certification of Chief Financial Officer (Principal Financial Officer) pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002					X
32.1	Certification of Chief Executive Officer (Principal Executive Officer) pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002**					X
32.2	Certification of Chief Financial Officer (Principal Financial Officer) pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002**					X
97.0	Compensation Recovery Policy	10-K	033-80623	97.0	March 28, 2024
101.INS	Inline XBRL Instance Document–the instance document does not appear in the Interactive Data File as its XBRL tags are embedded within the Inline XBRL document					X
101.SCH	Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents					X
104	Cover page formatted as Inline XBRL and contained in Exhibit 101					X

† Schedules and similar attachments to the Merger Agreement have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The Company will furnish supplementally a copy of any omitted schedule or similar attachment to the SEC upon request.

†† Indicates management contract or compensatory plan or arrangement.

* The Company has omitted portions of the exhibit as permitted under Item 601(b)(10) of Regulation S-K.

** The certifications attached as Exhibits 32.1 and 32.2 accompany to this Annual Report on Form 10-K pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, and shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

102

ITEM 16. FORM 10-K SUMMARY

None.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ACHIEVE LIFE SCIENCES, INC.
	(Registrant)
Date: March 11, 2025	By:	/s/ MARK OKI
		Mark Oki
		Chief Financial Officer (Principal Financial Officer)

Power of Attorney

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Mark Oki and Richard Stewart, jointly and severally, as such person’s attorneys-in-fact, each with the power of substitution, for such person in any and all capacities, to sign any amendments to this Annual Report on Form 10-K, and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his substitute or substitutes, may do or cause to be done by virtue hereof.

103

Pursuant to the requirements of the Securities Exchange Act of 1934, this Report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By: /s/ RICHARD STEWART	Chief Executive Officer and Director (Principal Executive Officer)	Date: March 11, 2025
Richard Stewart
By: /s/ MARK OKI	Chief Financial Officer (Principal Financial Officer)	Date: March 11, 2025
Mark Oki
By: /s/ JERRY WAN	Vice President, Finance (Principal Accounting Officer)	Date: March 11, 2025
Jerry Wan
By: /s/ CINDY JACOBS	President, Chief Medical Officer and Director	Date: March 11, 2025
Cindy Jacobs
By: /s/ THOMAS B. KING	Executive Chairman and Director	Date: March 11, 2025
Thomas B. King
By: /s/ BRIDGET MARTELL	Director	Date: March 11, 2025
Bridget Martell
By: /s/ STUART DUTY	Director	Date: March 11, 2025
Stuart Duty
By: /s/ THOMAS SELLIG	Director	Date: March 11, 2025
Thomas Sellig

By: /s/ KRISTIN SLAOUI	Director	Date: March 11, 2025
Kristin Slaoui
By: /s/ NANCY R. PHELAN	Director	Date: March 11, 2025
Nancy R. Phelan

104

EX-10.19

EXHIBIT 10.19

Employment Agreement

THIS EMPLOYMENT AGREEMENT (the “Agreement”) is entered into by and between Mark K. Oki (the “Executive”) and Achieve Life Sciences, Inc., a Delaware corporation (the “Employer” or the “Company”) as of December 5, 2024 (the “Effective Date”).

1.Duties and Scope of Employment.

For the term of this Agreement (“Employment”), the Employer agrees to employ the Executive in the position of Chief Financial Officer. The Executive shall report directly to the Chief Executive Officer (“CEO”) of the Company. The Executive shall have such duties, authority and responsibilities that are commensurate with his being a senior executive officer of the Employer. During his employment, Executive will perform his duties faithfully and to the best of his ability and will, except as provided below, devote his full business efforts and time to the Employer. For the duration of the Executive’s Employment term, Executive agrees not to actively engage in any other employment, occupation or consulting activity for any direct or indirect remuneration without the prior written approval of the Chief Executive Officer, such approval not to be unreasonably withheld. It is understood and agreed that Executive will not be precluded from serving on boards of directors and advisory boards, provided that such activities do not materially adversely affect Executive’s ability to perform and discharge his duties to the Employer and such work is approved by the CEO. The Executive’s primary workplace shall be remotely, from your home in Highlands Ranch, Colorado, with routine travel to the Company’s offices in Vancouver, British Columbia and in Bothell, Washington, and any other business travel as may be required by the Company.

2.Cash and Incentive Compensation.

(a)Salary. The Employer shall pay the Executive as compensation for his services a base salary at a gross annual rate of $450,000. Such salary shall be payable in accordance with the Employer’s standard payroll procedures. The annual compensation specified in this Section 2(a), together with any increases in such compensation that the Employer may grant from time to time, is referred to in this Agreement as “Base Compensation.”

(b)Incentive Bonuses. The Executive shall be eligible to receive a discretionary annual fiscal year incentive bonus (“Bonus”) that the Board of Directors of the Company (the “Board”) or Compensation Committee of the Board (the “Committee”) shall determine and award in its sole discretion. Initially, the Executive shall be eligible to receive a target Bonus of 40% of the Executive’s Base Compensation. Such percentage may be modified by the Board or the Committee in its discretion from time to time. The Bonus will be based upon the achievement of specific milestones that will be determined by the Board and/or the Committee and confirmed to the Executive no later than ninety (90) days after the start of each fiscal year. Payment for each year’s Bonus, if awarded, shall be made to the Executive no later than the fifteenth day of the third month after the later of the end of the calendar year or the Employer’s taxable year in which the Bonus payment is no longer subject to a substantial risk of forfeiture for purposes of Section 409A of the Internal Revenue Code, as amended (“Section 409A”). The Board or the Committee may, in its sole discretion, determine not to award a Bonus or to award a Bonus at less than maximum eligibility. The Executive acknowledges that a Bonus is neither required nor guaranteed by this Agreement.

(c)Equity Terms. During the Executive’s Employment, at the discretion of the Committee, the Executive shall be entitled to participate in the Company’s equity compensation plans, as in effect from time to time, and the Executive shall be eligible to receive grants of Company equity (“Compensatory Equity”), as determined by the Committee, in its discretion from time to time. As an inducement to join the Company, we will recommend to the Board or Committee that you be granted an option to purchase up to 72,000 shares of Common Stock of the Company (the “Option”) under an equity inducement plan and form of option agreement to be adopted by the Company, at the fair market value of the Company’s Common Stock, as determined by the Committee on the date the Committee approves such grant. The shares subject to the Option will vest at the rate of 12/36th on the first annual anniversary of the vesting commencement date, and for an additional 1/36th per month thereafter, for so long as you remain employed by the Company through each vesting date. In addition, as a further inducement to join the Company, we will recommend to the Board or Committee that you be granted 168,000 performance-based restricted stock unit (the “PSUs”), with vesting similar to the PSUs granted to the other officers of the Company in calendar year 2024. Further details on the Option and PSUs grants to you will be provided upon approval of such grants by the Board or Committee.

(d)Employee Benefits. During the Executive’s Employment, the Executive will be entitled to participate in the employee benefit plans of general applicability to other employees of the Company, as in effect from time to time, including, without limitation, the Company’s group medical, dental, vision, disability, life insurance, director and officer liability

insurance and flexible-spending account plans. The Company reserves the right to cancel or change the benefit plans and programs it offers to its employees at any time.

(e)“Service” Definition. For purposes of Section 3(b) of this Agreement, “Service” shall mean service by the Executive as an employee and/or consultant of the Employer (or any subsidiary or parent or affiliated entity of the Employer).

3.Vacation and Indemnification.

(a)Vacation. The Executive will be eligible for paid vacation in accordance with the Employer’s vacation policy. Under the Employer’s current vacation policy, the Executive is eligible for twenty-five (25) days per year of paid vacation. Unused vacation may not be carried over for more than twelve months after the completion of each fiscal year.

(b)Indemnification. The Employer shall indemnify the Executive to the maximum extent permitted by applicable law and the Employer’s certificate of incorporation and bylaws with respect to the Executive’s Service. During the Executive’s Employment, the Employer shall maintain officers’ liability insurance for the Executive’s benefit on terms and conditions no less favorable than the terms and conditions generally applicable to the Employer’s other senior executive officers. The Employer’s obligations under this Section 3(b) shall survive termination of the Executive’s Service and also termination or expiration of this Agreement.

4.Business Expenses.

During his Employment, the Executive shall be authorized to incur necessary and reasonable travel, entertainment and other business expenses in connection with his duties hereunder. The Employer shall promptly reimburse the Executive for such expenses upon presentation of appropriate supporting documentation, all in accordance with the Employer’s generally applicable policies.

5.Term of Employment.

(a)Employment-at-Will. The Employer and the Executive hereby acknowledge that the Executive’s Employment is at-will. The Employer may terminate the Executive’s Employment with or without Cause, by giving the Executive thirty (30) days advance notice in writing. The Executive may terminate his Employment by giving the Employer thirty (30) days advance notice in writing. The Executive’s Employment shall terminate automatically in the event of his death.

(b)Rights Upon Termination. Upon the termination of the Executive’s Employment for any reason (including death or Disability (as defined below)), the Executive shall be entitled to the compensation, benefits and reimbursements described in this Agreement through the effective date of the termination (the “Termination Date”), and the Employer shall make the following payments to the Executive (or his beneficiary) within 10 business days following the Termination Date: (i) all unpaid salary and unpaid vacation accrued through the Termination Date, (ii) any accrued, unpaid bonuses (provided that any such bonus has been awarded by the Board or the Committee, in accordance with the terms of any applicable plan, has been earned by the Executive and is not subject to any vesting or other similar requirement) for any fiscal year of the Employer ended prior to the Termination Date and (iii) any unreimbursed business expenses provided that Executive has submitted appropriate documentary substantiation as required by Company policy. The Executive may also be eligible for other post-Employment payments and benefits as provided in this Agreement or pursuant to other agreements or plans with the Employer. Upon the Termination Date, the Executive shall have no further rights to receive compensation or benefits from the Employer except as set forth in Section 6 and pursuant to the terms of any benefit plans (including without limitation any equity compensation plans) of the Company in which the Executive is a participant.

6.Termination Benefits.

(a)Severance Pay. If there is an Involuntary Termination (as defined below) of the Executive’s Employment, then, subject to the Executive’s execution, delivery and non-revocation of a Release (defined below) within the time period described below, following the Executive’s “separation from service” within the meaning of Section 409A, the Employer shall pay the Executive a single lump sum of cash in an amount equal to the sum of twelve (12) months (the “Severance Period”) of the Executive’s annual Base Compensation (not giving effect to any reduction in Base Compensation made in connection with such Involuntary Termination or giving rise to Good Reason). The cash lump sum amount payable under this Section 6(a) shall

2

be made to the Executive on the first payroll date in the month following the month containing the Release Deadline. The Executive shall also receive the benefits provided in Sections 6(b) and 6(c), and all such payments and benefits shall not be subject to mitigation or offset (except as specified in Section 6(b)). In order to be entitled to receive the severance described in this Section 6(a) (including the benefits provided in Sections 6(b), 6(c) and, if applicable, 6(d)), the Executive must execute, deliver and not revoke the Release within forty-five (45) calendar days following the Executive’s separation from service (the date that is forty-five (45) calendar days following the Executive’s separation from service is the “Release Deadline”). The Employer shall furnish the Release to the Executive on the date of his Involuntary Termination. The “Release” shall be a general release of all litigation and other claims against the Employer and all affiliates by the Executive and on Executive’s behalf in a form satisfactory to the Employer.

(b)Health Insurance. If the Executive is entitled to receive the severance payment in Section 6(a), and if the Executive elects to continue his (and his dependents’) health insurance coverage under the Consolidated Omnibus Budget Reconciliation Act of 1985 (“COBRA”), then the Employer shall pay Executive a lump sum cash payment that is equivalent to the value of Executive’s monthly premium under COBRA for the number of months in the Severance Period. The cash lump sum amount payable under this Section 6(b) shall be made to the Executive on the first payroll date in the month following the month containing the Release Deadline.

(c)Equity Vesting. Notwithstanding the terms of any equity compensation plan of the Company or any agreement in connection with a grant of Compensatory Equity, if the Executive is entitled to receive the payments in Section 6(a), then the time-based vesting restrictions (if any) shall immediately lapse on an additional number of shares of Company common stock under all of the Executive’s outstanding Compensatory Equity that is equal to the number of shares that would have time-vested if the Executive had continued in employment for the number of additional months following the Termination Date that is equal to the number of months in the Severance Period. The Executive shall be entitled to exercise any of his Compensatory Equity to the extent vested pursuant to this Section 6(c) or otherwise for such period as set forth in the terms of that Compensatory Equity.

(d)Effect of Change in Control. If the Company is subject to a Change in Control (as defined below) and there is an Involuntary Termination of the Executive’s Employment within the period beginning three (3) months before and ending twelve (12) months after a Change in Control (or more than three (3) months prior to a Change in Control but in connection with a Change in Control), then following the Executive’s separation from service, the Executive will be entitled to all benefits described in Sections 6(a), 6(b) and 6(c) of this Agreement subject to the same terms and conditions and payment dates described above, except that (x) the cash payment amount under Section 6(a) shall be an amount equal to the sum of twenty-four (24) months of the Executive’s then annual Base Compensation (not giving effect to any reduction in Base Compensation made in connection with such Involuntary Termination or giving rise to Good Reason), plus an amount equal to the sum of twenty-four (24) months of the Executive’s average monthly Bonus earnings, where such average is calculated over the twenty-four (24) month period immediately preceding the Executive’s separation from service and based on the Executive’s Bonus paid in such 24 month period, (y) the payment under Section 6(b) shall be equivalent to the amount of Executive’s monthly premiums under COBRA for twenty-four (24) months and (z) notwithstanding the terms of any equity compensation plan of the Company or any agreement in connection with a grant of Compensatory Equity, all vesting restrictions (if any) shall immediately lapse on all of the Executive’s Compensatory Equity effective as of the Executive’s separation from service. For purposes of the preceding sentence, an Involuntary Termination shall be deemed to be in connection with a Change in Control if such termination (i) is required by the merger agreement, purchase agreement or other instrument relating to such Change in Control or (ii) is made at the express request of the other party (or parties) to the transaction constituting such Change in Control.

(i)Parachute Payments. In the event that the payments and benefits provided for in this Agreement and the payments and/or benefits provided to, or for the benefit of, the Executive under any other Employer plan or agreement (such payments or benefits are hereinafter collectively referred to as the “Benefits”) (i) constitute “parachute payments” within the meaning of Section 280G of the Internal Revenue Code and (ii) but for this Section 6(d), would be subject to the excise tax imposed by Section 4999 of the Internal Revenue Code (the “Excise Tax”), then the Benefits shall either be:

(ii)delivered in full, or

(iii)delivered as to such lesser extent which would result in no portion of such Benefits being subject to the Excise Tax (such reduced amount is hereinafter referred to as the “Limited Amount”), whichever of the foregoing amounts,

3

taking into account the applicable federal, state and local income taxes and the Excise Tax, results in the receipt by the Executive on an after-tax basis, of the greatest amount of Benefits, notwithstanding that all or some portion of such Benefits may be subject to the Excise Tax. If applicable, in order to effectuate the Limited Amount, the Employer shall first reduce those Benefits which are payable in cash and then reduce non-cash payments, in each case in reverse order beginning with Benefits which are to be paid the farthest in time from the date of determination that the Benefits will be limited by (d)(ii) above. Any calculations and determinations required under this Section 6(d) shall be made in writing by the Company’s independent auditor (the “Accountant”) whose determination shall be conclusive and binding. The Executive and the Company shall furnish the Accountant such documentation as the Accountant may reasonably request in order to make a determination. The Employer shall pay for all costs that the Accountant may reasonably incur in connection with performing any calculations contemplated by this Section 6(d).

(e)“Change in Control” Definition. For purposes of this Agreement, “Change in Control” shall mean the occurrence of any of the following events:

(i)the consummation of a merger or consolidation of the Company with or into another entity or any other corporate reorganization, if the Company’s stockholders immediately prior to such merger, consolidation or reorganization cease to directly or indirectly own immediately after such merger, consolidation or reorganization at least a majority of the combined voting power of the continuing or surviving entity’s securities (or, if the continuing or surviving entity is a wholly owned subsidiary of another corporation immediately following such merger or consolidation, the ultimate parent corporation of such surviving or resulting corporation) outstanding immediately after such merger, consolidation or other reorganization;

(ii)the consummation of the sale, transfer or other disposition of all or substantially all of the Company’s assets (other than (1) to a corporation or other entity of which at least a majority of its combined voting power is owned directly or indirectly by the Company, (2) to a corporation or other entity owned directly or indirectly by the stockholders of the Company in substantially the same proportions as their ownership of the common stock of the Company or (3) to a continuing or surviving entity described in subsection (i) in connection with a merger, consolidation or corporate reorganization which does not result in a Change in Control under subsection (i));

(iii)a change in the composition of the Board, as a result of which fewer than one-half of the incumbent directors are directors who either (1) had been directors of the Company on the date twenty-four (24) months prior to the date of the event that may constitute a Change in Control (the “original directors”) or (2) were elected, or nominated for election, to the Board with the affirmative votes of at least a majority of the aggregate of the original directors who were still in office at the time of the election or nomination and the directors whose election or nomination was previously so approved;

(iv)the consummation of any transaction as a result of which any person becomes the “beneficial owner” (as defined in Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), directly or indirectly, of securities of the Company representing at least thirty-five percent (35%) of the total voting power represented by the Company’s then outstanding voting securities. For purposes of this subsection, the term “person” shall have the same meaning as when used in sections 13(d) and 14(d) of the Exchange Act but shall exclude:

(1)a trustee or other fiduciary holding securities under an employee benefit plan of the Company or an affiliate of the Company;

(2)a corporation or other entity owned directly or indirectly by the stockholders of the Company in substantially the same proportions as their ownership of the common stock of the Company;

(3)the Company; and

(4)a corporation or other entity of which at least a majority of its combined voting power is owned directly or indirectly by the Company; or

(v)a complete winding up, liquidation or dissolution of the Company.

4

For purposes of this Section 6(e), a transaction shall not constitute a Change in Control if its sole purpose is to change the state of the Company’s incorporation or to create a holding company that will be owned in substantially the same proportions by the persons who held the Company’s securities immediately before such transactions.

(f)“Cause” Definition. For all purposes under this Agreement, “Cause” shall mean any of the following committed by the Executive:

(i)Willful failure to follow the reasonable and lawful directions of the Chief Executive Officer;

(ii)Conviction of a felony (or a plea of guilty or nolo contendere by the Executive to a felony) that materially harms the Company;

(iii)Acts of fraud, dishonesty or misappropriation committed by the Executive;

(iv)Willful misconduct by the Executive in the performance of the Executive’s material duties required by this Agreement; or

(v)A material breach of this Agreement.

The foregoing is an exclusive list of the acts or omissions that shall be considered “Cause” for the termination of the Executive’s Employment by the Employer. With respect to the acts or omissions set forth in clauses (i), (iii), (iv) and (v) above, (x) the CEO shall provide the Executive with one (1) month advance written notice detailing the basis for the termination of Employment for Cause, (y) during the one-month period after the Executive has received such notice, the Executive shall have an opportunity to cure such alleged Cause events before any termination for Cause is finalized and (z) the Executive shall continue to receive the compensation and benefits provided by this Agreement during the one-month cure period. In addition, no act or failure to act of Executive shall be willful or intentional if performed in good faith with the reasonable belief that the action or inaction was in the best interest of the Employer.

(g)“Involuntary Termination” Definition. For all purposes under this Agreement, “Involuntary Termination” shall mean any of the following: (i) termination of the Executive’s Employment by the Employer without Cause; (ii) the Executive’s resignation of Employment for Good Reason; or (iii) termination of the Executive’s Employment by the Employer for Disability.

(h)“Good Reason” Definition. For all purposes under this Agreement, “Good Reason” shall mean any of the following that occurs without the Executive’s prior written consent:; (i) a material reduction of the Executive’s Base Compensation or Executive’s employee benefits; (ii) any material reduction or diminution of the Executive’s duties, authority or responsibilities; (iii) the Employer’s material breach of this Agreement; or (iv) the failure of any successor of the Company to expressly in writing assume the Company’s obligations under this Agreement, in each case, provided that the Executive shall have provided the Employer with thirty (30) days advance written notice and an opportunity to cure such breach during such 30-day period.

(i)“Disability” Definition. For all purposes under this Agreement, “Disability” shall mean the Executive’s incapacity due to physical or mental illness to perform his full-time duties with the Employer for a continuous period of three (3) months or an aggregate of six (6) months in any eighteen (18) month period.

7.Non-Compete and Non-Disparagement.

(a)Non-Compete. During the period of Executive’s employment with the Company, Executive agrees to not engage in any employment, business or activity that is in any way competitive with the business or proposed business of the Company. Executive will disclose to the Company in writing any other gainful employment, business or activity that Executive is currently associated with or participate in that competes with the Company. Executive will not assist any other person or organization in competing with the Company or in preparing to engage in competition with the business or proposed business of the Company.

5

(b)Confidential Information. Except as required in the good faith opinion of the Executive in connection with the performance of the Executive’s duties hereunder or as specifically set forth in this Section 7(b), the Executive shall, in perpetuity, maintain in confidence and shall not directly, indirectly or otherwise, use, disseminate, disclose or publish, or use for his benefit or the benefit of any person, firm, corporation or other entity any confidential or proprietary information or trade secrets of or relating to the Company or any of its affiliates, including, without limitation, information with respect to the Company’s operations, processes, products, inventions, business practices, finances, principals, vendors, suppliers, customers, potential customers, marketing methods, costs, prices, contractual relationships, regulatory status, business plans, designs, marketing or other business strategies, compensation paid to employees or other terms of employment, or deliver to any person, firm, corporation or other entity any document, record, notebook, computer program or similar repository of or containing any such confidential or proprietary information or trade secrets. The Company and the Executive stipulate and agree that as between them the foregoing matters are important, material and confidential proprietary information and trade secrets and affect the successful conduct of the businesses of the Company (and any successor or assignee of the Company). Upon termination of the Executive’s employment with the Company for any reason, the Executive shall promptly deliver to the Company all correspondence, drawings, manuals, letters, notes, notebooks, reports, programs, plans, proposals, financial documents, or any other documents concerning the Company’s customers, business plans, designs, marketing or other business strategies, products or processes, provided that the Executive may retain his address book and similar information, whether or not the Company specifically requests it.

(c)Non-Disparagement. The Executive and the Company mutually agree not to disparage or defame, in writing or orally, the other party, and as applicable, its or his services, products, subsidiaries and affiliates, and/or their respective directors, officers, employees, agents, family members, successors and assigns. This non-disparagement provision shall not apply to statements made by non-management employees of the Company, so long as such statements did not originate from and were not induced or encouraged (directly or indirectly) by an officer, director or management employee of the Company. Notwithstanding the foregoing, nothing in this Section 7(c) shall limit the ability of the Company or the Executive, as applicable, to provide truthful testimony as required by law or any judicial or administrative process.

(d)Remedies. Without limiting the right of the Employer to pursue all other legal and equitable rights available to the Employer for violation of the provisions of Section 7 of this Agreement by Executive, it is agreed that (a) other remedies cannot fully compensate the Employer for such a violation, (b) such a violation will cause the Employer irreparable harm which may not be adequately compensated by money damages and (c) the Employer shall each be entitled to temporary, preliminary and permanent injunctive or other equitable relief, without proving actual damages or posting a bond therefore, to prevent a violation, continuing violation or threatened violation of the provisions of Section 7 of this Agreement.

8.Inventions and Patents.

(a)For purposes of this Agreement, “Inventions” includes, without limitation, information, inventions, contributions, improvements, ideas, or discoveries, whether protectable or not, and whether or not conceived or made during work hours. Executive agrees that all Inventions conceived or made by Executive during the period of employment with Employer belong to Employer, provided they grow out of Executive’s work with Employer or are related in some manner to the Company Business, including, without limitation, research and product development, and projected business of Employer or its affiliated companies. Accordingly, Executive will:

(i)Make adequate written records of such Inventions, which records will be Employer’s property;

(ii)Assign (and hereby does irrevocably assign and transfer) to Employer or its designee, at Employer’s request, any rights, title and interest Executive may have to such Inventions for the U.S. and all foreign countries;

(iii)Waive and agree not to assert any moral rights Executive may have or acquire in any Inventions and agree to provide written waivers from time to time as requested by Employer; and

(iv)Assist Employer (at Employer’s expense) in obtaining and maintaining patents or copyright registrations with respect to such Inventions.

(b)Executive understands and agrees that Employer or its designee will determine, in its sole and absolute discretion, whether an application for patent will be filed on any Invention that is the exclusive property of Employer, as set

6

forth above, and whether such an application will be abandoned prior to issuance of a patent. Employer will pay to Executive, either during or after the term of this Agreement, the following amounts if Executive is sole inventor, or Executive’s proportionate share if Executive is joint inventor: $750 upon filing of the initial application for patent on such Invention; and $1,500 upon issuance of a patent resulting from such initial patent application, provided Executive is named as an inventor in the patent.

(c)Executive further agrees that Executive will promptly disclose in writing to Employer during the term of Executive’s employment and for one (1) year thereafter, all Inventions whether developed during the time of such employment or thereafter (whether or not Employer has rights in such Inventions) so that Executive’s rights and Employer’s rights in such Inventions can be determined. Except as set forth on the initialed Exhibit A (List of Inventions) to this Agreement, if any, Executive represents and warrants that Executive has no Inventions, software, writings or other works of authorship useful to Employer in the normal course of the Company Business, which were conceived, made or written prior to the date of this Agreement and which are excluded from the operation of this Agreement.

(d)NOTICE: In accordance with Washington law, this Section 8 does not apply to Inventions for which no equipment, supplies, facility, or trade secret information of Employer was used and which was developed entirely on Executive’s own time, unless: (a) the Invention relates (i) directly to the business of Employer or (ii) to Employer’s actual or demonstrably anticipated research or development, or (b) the Invention results from any work performed by Executive for Employer.

9.Successors.

(a)Employer’s Successors. This Agreement shall be binding upon any successor (whether direct or indirect and whether by purchase, lease, merger, consolidation, liquidation or otherwise) to all or substantially all of the Employer’s business and/or assets. For all purposes under this Agreement, the term “Employer” shall include any successor to the Employer’s business and/or assets which becomes bound by this Agreement.

(b)Employee’s Successors. This Agreement and all rights of the Executive hereunder shall inure to the benefit of, and be enforceable by, the Executive’s personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees.

10.Section 409A of the Internal Revenue Code.

In the event that the Employer determines that any of the benefits payable under this Agreement would violate Section 409A, then the Employer and the Executive shall, in good faith, agree to implement adjustments needed to comply with Section 409A. Additionally, notwithstanding anything contained in this Agreement to the contrary, if Executive is deemed by the Employer at the time of Executive’s “separation from service” to be a “specified employee,” each within the meaning of Section 409A, any compensation or benefits to which Executive becomes entitled under this Agreement (or any agreement or plan referenced in this Agreement) in connection with such separation that are subject to Section 409A shall not be made or commence until the date which is six (6) months after Executive’s “separation from service” (or, if earlier, Executive’s death). Such deferral shall only be effected to the extent required to avoid adverse tax treatment to Executive, including (without limitation) the additional twenty percent (20%) tax for which Executive would otherwise be liable under Section 409A(a)(1)(B) in the absence of such deferral. Upon the expiration of the applicable deferral period, any compensation or benefits which would have otherwise been paid during that period (whether in a single lump sum or in installments) in the absence of this Section 10 shall be paid to Executive or Executive’s beneficiary in one lump sum. To the extent that any provision of this Agreement is ambiguous as to its exemption or compliance with Section 409A, the provision will be read in such a manner so that such payments hereunder are exempt from Section 409A to the maximum permissible extent, and for any payments where such construction is not tenable, that those payments comply with Section 409A to the maximum permissible extent. To the extent any nonqualified deferred compensation subject to Section 409A payable to Executive hereunder could be paid in one or more taxable years depending upon Executive completing certain employment-related actions (such as resigning after a failure to cure a Good Reason event and/or returning an effective release), then any such payments will commence or occur in the later taxable year to the extent required by Section 409A.

11.Repayment Provisions.

7

If the Company is required to prepare an accounting restatement due to its material noncompliance, as a result of the Executive’s misconduct, with any financial reporting requirement under United States securities laws, then, and only if Section 304 of the Sarbanes-Oxley Act of 2002, or a successor provision, is then in effect, the Company may require the Executive to reimburse the Employer for (i) any bonus or other incentive-based or equity-based compensation received by the Executive from the Employer during the 12-month period following the first public issuance or filing with the Securities Exchange Commission (whichever first occurs) of the financial documents embodying such financial reporting requirement and (ii) any profits realized from the sale of securities of Company during such 12-month period.

12.Miscellaneous Provisions.

(a)Notice. Notices and all other communications contemplated by this Agreement shall be in writing and shall be deemed to have been duly given when personally delivered or when mailed by overnight courier, U.S. registered or certified mail, return receipt requested and postage prepaid. In the case of the Executive, mailed notices shall be addressed to him at the home address that he most recently communicated to the Employer in writing. In the case of the Employer, mailed notices shall be addressed to:

Attention:	Chief Executive Officer
c/o:	22722 29th Drive SE, Suite 100,
	Bothell, Washington 98021
	Telephone: 425-686-1500
	Facsimile: 425-686-1600

(b)Modifications and Waivers. No provision of this Agreement shall be modified, waived or discharged unless the modification, waiver or discharge is agreed to in writing and signed by the Executive and by an authorized officer of the Employer (other than the Executive). No waiver by either party of any breach of, or of compliance with, any condition or provision of this Agreement by the other party shall be considered a waiver of any other condition or provision or of the same condition or provision at another time.

(c)Whole Agreement. Except for those agreements or plans referenced herein (including without limitation any employee benefit plans of the Company in which the Executive is a participant in as of the Effective Date), this Agreement contains the entire understanding of the parties with respect to the subject matter hereof and supersedes any other agreements, representations or understandings (whether oral or written and whether express or implied) with respect to the subject matter hereof, including without limitation the offer letter between the Executive and the Employer dated November 18, 2024. In the event of any conflict in terms between this Agreement and any other agreement executed by and between the Executive and the Employer, the terms of this Agreement shall prevail and govern.

(d)Withholding Taxes. All payments made under this Agreement shall be subject to reduction to reflect taxes or other charges required to be withheld by law.

(e)Choice of Law. The validity, interpretation, construction and performance of this Agreement shall be governed by the laws of the State of Washington (except their provisions governing the choice of law).

(f)Severability; Blue-Penciling. The invalidity or unenforceability of any provision or provisions of this Agreement shall not affect the validity or enforceability of any other provision hereof, which shall remain in full force and effect. Furthermore, it is the intent, agreement and understanding of each party hereto that if, in any action before any court or agency legally empowered to enforce this Agreement, any term, restriction, covenant or promise in this Agreement is found to be unreasonable and for that or any other reason unenforceable, then such term, restriction, covenant or promise shall be deemed modified to the minimum extent necessary to make it enforceable by such court or agency; provided further that any such court

8

or agency shall have the power to modify such provision, to the extent necessary to make it enforceable (for the maximum duration and geographic scope permissible), and such provision as so modified shall be enforced.

(g)Assignment. The Employer may assign its rights under this Agreement to any entity that expressly in writing assumes the Employer’s obligations hereunder in connection with any sale or transfer of all or substantially all of the Company’s assets to such entity.

(h)Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

ACHIEVE LIFE SCIENCES, INC.

By: /s/RICHARD STEWART

Name: Richard Stewart

Title: Chief Executive Officer

MARK K. OKI

Signed: /s/MARK OKI

9

EX-10.36

EXHIBIT 10.36

Renewal Service

Agreement

AGREEMENT DATE: OCTOBER 25, 2024

BUSINESS CENTER ADDRESS :	CLIENT ADDRESS (NOT A BUSINESS CENTER ADDRESS):
Regus	Company Name Achieve Life Sciences
WA, Bothell – Canyon Park West	Contact Name Kevin Nouwens
22722 29th Drive SE	Address* 520 Pike Street
Suite 100	Suite 2250
Bothell
Washington	City: Seattle
98021	State/County/Province Washington Municipality/Governorate*
United States of America	Post Code * 98021
	Country * United States of America
	Phone number * United States of America  206-920-7606
	Email *

RENEWAL PAYMENT DETAILS (EXCLUDING TAX AND OPTIONAL SERVICES)

Office Number	Number of People	Total Monthly Office Price	Discount for Longer Term	Totally Monthly Discount	Discounted Monthly Renewal Price
173	1	$ 1,388.00	$69.00	$69.00	$1,319.00
TOTALS	1	$ 1,388.00	$69.00	$69.00	$1,319.00
				4.97%

SERVICE PROVISION: Start Date March 1, 2025 End Date*    August 31, 2025

Comments

* All agreements end on the last calendar day of the month.

•Invoices/Fess are charged on a monthly basis which is calculated based on a 30-day month.

•A refundable service retainer equivalent to 2 x monthly office fee will be payable

Promotion:  Any promotion or discount is for the initial term of the agreement.

terms and conditions

We are Regus Management Group,LLC, please click the link below for terms and conditions.

AGREEMENT TO ARBITRATE/CLASS ACTION WAIVER: YOU AND WE MUTALLY AGREE TO WAIVE OUR RESPECTIVE RIGHTS TO RESOLVE DISPUTES IN A COURT OF LAW BY A JUDGE OR JURY AND AGREE TO RESOLVE ANY DISPUTE BETWEEN US BY BINDING ARBITRATION, except as expressly provided in this paragraph. Any dispute or claim relating in any way or arising out of this Agreement shall be resolved by binding arbitration administered by the American Arbitration Association in accord with Its Commercial Arbitration Rules (available at www.adr.org), except that You or We may assert dams in small claims court

CONFIRMATION NO : R-3111002

and We may pursue court action to remove You, if You do not leave when this Agreement terminates (and You may pursue a court action to prevent Your removal). The arbitrator, and not a court of law, shall have exclusive authority to resolve any dispute relating to the interpretation, applicability, enforceability, or formation of this agreement to arbitrate, and shall conduct the arbitration on an individual basis only and not as a class or representative action. You and We acknowledge that this Agreement is governed by the Federal Arbitration Act and will survive after this Agreement terminates or your relationship with Us ends.

CLASS ACTION WAIVER: YOU UNDERSTAND AND AGREE THAT YOU AND WE MAY EACH BRING CLAIMS AGAINST THE OTHER, WHETHER IN COURT OR ARBITRATION, ONLY IN AN INDIVIDUAL CAPACITY AND NOT ON A CLASS, COLLECTIVE ACTION, OR REPRESENTATIVE BASIS, AND EXPRESSLY WAIVE THE RIGHT TO PURSUE OR HAVE A DISPUTE RESOLVED AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS, COLLECTIVE OR REPRESENTATIVE PROCEEDING.

CONFIRMATION NO : R-3111002

These General Terms and Conditions apply to Office/Co-Working, Virtual Office, and Membership and Workplace Recovery agreements for services We supply to You.

1. General Agreement

1.1 Nature of an agreement: At all times, each Center remains in Our possession and control. YOU ACCEPT THAT AN AGREEMENT CREATES NO TENANCY INTEREST, LEASEHOLD ESTATE, OR OTHER REAL PROPERTY INTEREST IN YOUR FAVOR WITH RESPECT TO THE ACCOMMODATION.

1.2 House Rules: The House Rules, which are incorporated into these terms and conditions, are primarily in place and enforced to ensure that all clients have a professional environment to work in.

1.3 Company and Contact Information: It is Your responsibility to keep the information and key contact information We use to communicate with You up to date through the App or Online Account (or other customer portal as advised to you from time to time). This includes but is not limited to email addresses, phone numbers, and company address, Tax/VAT, and registration details as locally applicable. Your contact address details must be a legitimate business address or residential address of the primary contact; it must not be an IWG Center address (or other business center address).

1.4 Availability at the start of an agreement: If for any unfortunate reason We cannot provide the Virtual Office services or Office/Co-Working accommodation in the Center stated in an agreement by the start date, We will have no liability to You for any loss or damage, but You may either move to one of Our other Centers (subject to availability), delay the start of the agreement, or cancel it.

1.5 AUTOMATIC RENEWAL: SO THAT WE CAN MANAGE YOUR SERVICES EFFECTIVELY AND TO ENSURE SEAMLESS CONTINUITY OF THOSE SERVICES, ALL AGREEMENTS WILL RENEW AUTOMATICALLY FOR SUCCESSIVE PERIODS EQUAL TO THE CURRENT TERM UNTIL BROUGHT TO AN END BY YOU OR US. ALL PERIODS SHALL RUN TO THE LAST DAY OF THE MONTH IN WHICH THEY WOULD OTHERWISE EXPIRE. THE FEES ON ANY RENEWAL WILL BE AT THE THEN PREVAILING MARKET RATE. IF YOU DO NOT WISH FOR AN AGREEMENT TO RENEW THEN YOU CAN CANCEL IT EASILY WITH EFFECT FROM THE END DATE STATED IN THE AGREEMENT, OR AT THE END OF ANY EXTENSION OR RENEWAL PERIOD, BY GIVING US PRIOR NOTICE. NOTICE MUST BE GIVEN THROUGH YOUR ONLINE ACCOUNT OR THROUGH THE APP. THE NOTICE PERIODS REQUIRED ARE AS FOLLOWS:

Term Notice Period

Month-to-Month no less than 1 month's notice from the 1st day of any calendar month

3 months no less than 2 months’ notice prior to the end of the term

More than 3 months no less than 3 months’ notice prior to the end of the term

1.6 We may elect not to renew an agreement. If so, We will inform You by email, through the App or Your online account, according to the same notice periods specified above.

1.7 If the Center is no longer available: In the event that We are permanently unable to provide the services and accommodation at the Center stated in an agreement, We will offer You accommodation in one of Our other centers. In the unlikely event We are unable to find

a nearby alternative accommodation, Your agreement will end, and You will only have to pay monthly fees up to that date and for any additional services You have used.

1.8 Ending an agreement immediately: We may terminate an agreement immediately by giving You notice if (a) You become insolvent or bankrupt; or (b) You breach one of your obligations which cannot be put right, or which We have given You notice to put right and which You have failed to put right within 14 days of that notice; or (c) Your conduct, or that of someone at the Center with Your permission or invitation, is incompatible with ordinary office use and, (i) that conduct continues despite You having been given notice, or (ii) that conduct is material enough (in Our reasonable opinion) to warrant immediate termination; or (d) You are in breach of the “Compliance With Law” clause below. If We terminate an agreement for any of the reasons referred to in this clause You must, within 30 days of the date of Our notice of termination, pay Us as a lump sum payment all sums that would otherwise have fallen due and payable by you during the remainder of the period for which Your agreement would have lasted if We had not terminated it. You agree that this payment reflects a reasonable estimate of the actual damages that We will sustain in the event of an early termination.

1.9 When an Office agreement ends: When an agreement ends You must vacate Your accommodation immediately, leaving it in the same state and condition as it was when You took it. If You leave any property in the Center, We may dispose of it at Your cost in any way We choose without owing You any responsibility for it or any proceeds of sale. If You continue to use the accommodation when an agreement has ended, You are responsible for any loss, claim or liability We may incur as a result of Your failure to vacate on time.

1.10. Transferability: Subject to availability (which shall be determined in Our sole discretion) You may transfer Your agreement to alternative accommodation in the IWG network of Centers provided that Your financial commitment remains the same (or increases) and such transfer is not used to extend or renew an existing agreement. Such a transfer may require entry into a new agreement.

2. Use of the Centers:

2.1. Business Operations: You may not carry on a business that competes with Our business of providing serviced offices and flexible working. You may not use Our name (or that of Our affiliates) in any way in connection with Your business. You are only permitted to use the address of a Center as Your registered office address if it is permitted by both law and if We have given You prior written consent (given the administration there is an additional fee chargeable for this service which can be found in the House Rules). You must only use the accommodation for office business purposes. If We decide that a request for any particular service is excessive, We reserve the right to charge an additional fee. In order to ensure that the Center provides a great working environment for all, We kindly ask you to limit any excessive visits by members of the public.

2.2 Accommodation

2.2.1. Alterations or Damage: You are liable for any damage caused by You or those in the Center with Your permission, whether express or implied, including but not limited to all employees, contractors and/or agents.

2.2.2. IT Installations: We take great pride in Our IT infrastructure and its upkeep and therefore You must not install any cabling, IT, or telecom connections without Our consent, which We may refuse in our absolute discretion. As a condition

to Our consent, You must permit Us to oversee any installations (for example, IT or electrical systems) and to verify that such installations do not interfere with the use of the accommodation by other clients or Us or any landlord of the building. Fees for installation and de-installation will be at Your cost.

2.2.3. Use of the Accommodation: An agreement will list the accommodation We initially allocate for Your use. You will have a non-exclusive right to the rooms allocated to You. Where the accommodation is a Coworking desk, this can only be used by one individual. It cannot be shared among multiple individuals. Occasionally to ensure the efficient running of the Centre, We may need to allocate different accommodation to You, but it will be of reasonably equivalent size, and We will notify You with respect to such different accommodation in advance.

2.2.4. Access to the Accommodation: To maintain a high level of service, We may need to enter Your accommodation and may do so at any time, including and without limitation, in an emergency, for cleaning and inspection or in order to resell the space if You have given notice to terminate. We will always endeavor to respect any of Your reasonable security procedures to protect the confidentiality of Your business.

2.2.5. Hybrid Working: You may use Your designated office for hybrid working (excluding Coworking desks). Hybrid working is defined as having more individuals registered with access to Your office than the specified maximum allowable occupants for that office at any one time. The management of individuals accessing your office is Your responsibility and should be managed through Your online account. At no time may the number of individuals working in Your accommodation exceed the maximum number of occupants allowed. A hybrid supplemental monthly fee will be payable by You for each individual registered above the maximum occupants allowed. This fee can be found in the House Rules.

2.3 Membership:

2.3.1. If You have subscribed to a Membership Agreement, You will have access to all participating centers worldwide during standard business working hours and subject to availability. If You would like to stay after hours, please speak to the Community Team for instructions on, and availability of, after hours use.

2.3.2 Membership Usage: Usage is measured in whole days and unused days cannot be carried over to the following month. A membership is not intended to be a replacement for a full-time workspace and all workspaces must be cleared at the end of each day. You are solely responsible for Your belongings at the center at all times. We are not responsible for any property that is left unattended. Should You use more than Your membership entitlement, We will charge You an additional usage fee. You may bring in 1 guest free of charge (subject to fair usage). Any additional guests will be required to purchase a day pass.

2.3.3. As a Member, You may not use any Center as Your business address without an accompanying office or virtual office agreement in place. Any use of the Center address in such a way will result in an automatic enrollment in the Virtual Office product for the same term as Your membership and You will be invoiced accordingly.

2.4. Workplace Recovery: The Workplace Recovery services are governed by these terms and conditions including, without limitation, Our liability to You and insurance. This service is detailed further in the Workplace Recovery Services Guide which is available upon request.

2.5 Compliance with Law: You must comply with all relevant laws and regulations in the conduct of Your business. You must not do anything that may interfere with the use of the Center by Us or by others (including but not limited to political campaigning or immoral activity), cause any nuisance or annoyance, or cause loss or damage to Us (including damage to reputation) or to the owner of any interest in the building. If We have been advised by any government authority or other legislative body that it has reasonable suspicion that You are conducting criminal activities from the Center, or You are or will become subject to any government sanctions, then We shall be entitled to terminate any and all of Your agreements with immediate effect. You acknowledge that any breach by You of this clause shall constitute a material default, entitling Us to terminate Your agreement without further notice.

2.6. Ethical Trading: Both We and You shall comply at all times with all relevant anti-slavery, anti-bribery, and anti- corruption laws.

2.7. Data Protection:

2.7.1. Each party shall comply with all applicable data protection legislation. The basis on which we will process Your personal data is set out in our privacy policies (available on our website at www.iwgplc.com/clientprivacypolicy.)

2.7.2. You acknowledge and accept that we may collect and process personal data concerning You and/or your personnel in the course of our agreement for services with you. Such personal data will be processed in accordance with our privacy policy. Where you provide this data to us, you will ensure that you have the necessary consents and notices in place to allow for this.

2.8. Employees: We will both have invested a great deal in training Our staff. Therefore, neither of us may knowingly solicit or offer employment to the other’s staff employed in any Center (or for 3 months after they have left their employment). To recompense the other for staff training and investment costs, if either of us breaches this clause the breaching party will pay upon demand the other the equivalent of 6 months’ salary of any employee concerned.

2.9. Confidentiality: The terms of an agreement are confidential. Neither of us may disclose them without the other’s consent unless required to do so by law or an official authority. This obligation continues for a period of 3 years after an agreement ends.

2.10. Assignment: An agreement is personal to You and cannot be transferred to anyone else without prior consent from Us unless such transfer is required by law. However, We will not unreasonably withhold our consent to assignment to an affiliate provided that You execute our standard form of assignment. We may transfer any agreement and any and all amounts payable by You under an agreement to any other member of Our group.

2.11. Applicable law: An agreement is interpreted and enforced in accordance with the law of the place where the Center is located other than in a few specific jurisdictions which are detailed in the House Rules. We and You both accept the exclusive jurisdiction of the courts of that jurisdiction. If any provision of these terms and conditions is held void or unenforceable under the applicable law, the other provisions shall remain in force.

3. Our liability to You and Insurance

3.1. The extent of Our liability: To the maximum extent permitted by applicable law, We are not liable to You in respect of any loss or damage You suffer in connection with an agreement, including without limitation any loss or damage arising as a result of our failure to provide a service as a result of mechanical breakdown, strike, or other event outside of Our reasonable control otherwise, unless We have acted deliberately or have been negligent. In no event shall We be liable for any loss or damage until You provide written notice and give Us a reasonable time to put it right. If We are liable for failing to provide You with any service under an agreement, then, subject to the exclusions and limits set out immediately below, We will pay any actual and reasonable additional expense You have incurred in obtaining the same or similar service from elsewhere.

3.2. Your Insurance: It is Your responsibility to arrange insurance for property which You bring in to the Center, for any mail You send or receive and for Your own liability to your employees and to third parties. We strongly recommend that You put such insurance in place.

3.3. IT Services and Obligations: Whilst We have security internet protocols in place and strive to provide seamless internet connectivity, WE DO NOT MAKE ANY REPRESENTATION AND CANNOT GUARANTEE ANY MAINTAINED LEVEL OF CONNECTIVITY TO OUR NETWORK OR TO THE INTERNET, NOR THE LEVEL OF SECURITY OF IT INFORMATION AND DATA THAT YOU PLACE ON IT. You should adopt whatever security measures (such as encryption) You believe are appropriate to Your business. Your sole and exclusive remedy in relation to issues of reduced connectivity which are within Our reasonable control shall be for Us to rectify the issue within a reasonable time following notice from You to Us.

3.4. EXCLUSION OF CONSEQUENTIAL LOSSES: WE WILL NOT IN ANY CIRCUMSTANCES HAVE ANY LIABILITY TO YOU FOR LOSS OF BUSINESS, LOSS OF PROFITS, LOSS OF ANTICIPATED SAVINGS, LOSS OF OR DAMAGE TO DATA, THIRD PARTY CLAIMS OR ANY CONSEQUENTIAL LOSS. WE STRONGLY RECOMMEND THAT YOU INSURE AGAINST ALL SUCH POTENTIAL LOSS, DAMAGE, EXPENSE OR LIABILITY.

3.5. Financial limits to our liability: In all cases, our liability to You is subject to the following limits:

3.5.1 without limit for personal injury or death;

3.5.2. up to a maximum of GBP 1 million (or USD 1.5 million or EUR 1 million or other local equivalent) for any one event or series of connected events for damage to Your personal property; and

3.5.3. in respect of any other loss or damage, up to a maximum equal to 125% of the total fees paid between the date services under an agreement commenced and the date on which the claim in question arises; or if higher, for office agreements only, GBP 50,000 / USD 100,000 / EUR 66,000 (or local equivalent).

4. Fees

4.1. Service Retainer/Deposit: Your service retainer / deposit will be held by Us without generating interest as security for performance of all Your obligations under an agreement. All requests for the return must be made through Your online account or App after which the service retainer/deposit or any balance will be returned within 30 days to You once your agreement has ended and when You have settled Your account. We will deduct any outstanding fees and other costs due to Us before returning the balance to You. We will

require You to pay an increased retainer if the monthly office or virtual office fee increases upon renewal, outstanding fees exceed the service retainer/deposit held, and/or You frequently fail to pay invoices when due.

4.2. Taxes and duty charges: You agree to pay promptly (i) all sales, use, excise, consumption and any other taxes and license fees which You are required to pay to any governmental authority (and, at Our request, You will provide to Us evidence of such payment) and (ii) any taxes paid by Us to any governmental authority that are attributable to Your accommodation, where applicable, including, without limitation, any gross receipts, rent and occupancy taxes, tangible personal property taxes, duties or other documentary taxes and fees.

4.3. Payment: We are continually striving to reduce our environmental impact and support You in doing the same. Therefore, We will send all invoices electronically and You will make payments via an automated method such as Direct Debit or Credit Card (wherever local banking systems permit). If You do not set up an automatic form of payment, You will be charged a refundable payment retainer equal to one time your monthly product fee. Invoices are due and payable on the due date stated in them.

4.4. Late payment: If You do not pay fees when due, a fee will be charged on all overdue balances. This fee will differ by country and is listed in the House Rules. If any part of an invoice is legitimately disputed, You shall give immediate written notice to Us, follow the requirements of the Disputes clause in the House Rules, and pay the amount not in dispute by the due date or be subject to late fees. We also reserve the right to withhold services (including for the avoidance of doubt, denying You access to the Center where applicable) while there are any outstanding fees and/or interest or You are in breach of an agreement.

4.5. Insufficient Funds: Due to the additional administration We incur, You will pay a fee for any returned or declined payments due to insufficient funds. This fee will differ by country and is listed in the House Rules.

4.6. Activation: An activation fee is payable in respect of each agreement You have with Us (including any new agreements entered into under clause 1.10 above). This fee covers the administrative cost of the client onboarding process and account setup. This fee is set out in each Local Services Agreement and is charged on a per occupant basis for Serviced Office and Coworking (dedicated desk), on a per location basis for Virtual Office, and on a per person basis for Membership. Further information is set out in the House Rules.

4.7. Indexation: If an agreement, including month to month agreements, continues for more than 12 months, We will increase the monthly fee on each anniversary of the start date in line with the relevant inflation rate detailed in the House Rules current at the time. If a country experiences high levels of inflation, indexation could be applied more frequently and is detailed in the House Rules current at the time.

4.8. Office Restoration: Upon Your departure or if You choose to relocate to a different room within a Center, We will charge a fixed office restoration service fee to cover normal cleaning and any costs incurred to return the accommodation to its original condition and state. This fee will differ by country and is listed in the House Rules. We reserve the right to charge additional reasonable fees for any repairs needed above and beyond normal wear and tear.

4.9. Standard services: Monthly fees, plus applicable taxes, and any recurring services requested by You are payable monthly in advance. Where a daily rate applies, the charge for

any such month will be 30 times the daily fee. For a period of less than one month, the fee will be applied on a daily basis.

4.10. Pay-as-you-use and Additional Variable Services: Fees for pay-as-you-use services, plus applicable taxes, are payable monthly in arrears at our standard rates which may change from time to time and are available on request.

4.11. Additional Fees: If Your use of the accommodation or treatment of the accommodation requires Us to incur additional costs for the provision of nonstandard service(s), including but not limited to deep cleaning, unusual trash removal, pest remediation, or additional security, We reserve the right to charge You for the cost of these services plus an additional 30% administration fee.

4.12. Discounts, Promotions and Offers: If You benefited from a special discount, promotion or offer, We will discontinue that discount, promotion or offer without notice if You materially breach Your agreement.

Global Terms March 2024

EX-19.1

EXHIBIT 19.1

INSIDER TRADING POLICY

THIS POLICY WAS APPROVED BY THE BOARD ON AUGUST 15, 2023

PURPOSE

Achieve Life Sciences, Inc. (the “Company,” “we,” “us” or “our”) is committed to promoting high standards of honest and ethical business conduct and compliance with laws, rules and regulations. Because stock is an important part of the Company’s compensation program, our Board of Directors (“Board”) has adopted this Insider Trading Policy (“Policy”) governing the purchase, sale and other dispositions of the Company’s securities by the individuals and entities covered by this policy to promote compliance with insider trading laws, rules and regulations, as well as applicable stock exchange listing standards.

Insider trading happens when someone who is in possession of material nonpublic information (“MNPI”) trades securities on the basis of that information or discloses MNPI to someone else who trades on the basis of that information.

If you are considering trading our stock or other securities, please keep these three key points in mind:

•Never buy or sell our securities when in possession of MNPI;

•Keep all MNPI confidential, including from your family and friends; and

•When in doubt about whether you have MNPI, ask before trading.

You are responsible for understanding and following this Policy and for the consequences of any actions you may take. Our insider trading compliance officer, as designated by the Board, a committee thereof or an executive officer of the Company (the “Compliance Officer”), will assist with implementing, interpreting and enforcing this Policy, pre-clearing trading activities of certain people, and pre-approving any 10b5-1 Plans (as discussed more fully later in this Policy).

Persons Covered By This Policy

This Policy applies to our employees, contractors, consultants and Board members, as well as to their immediate family members, people sharing their households and anyone subject to their influence or control. It applies as well to entities such as venture capital funds, partnerships, trusts and corporations which are associated or affiliated with our employees, contractors, consultants and Board members. An “immediate family member” under this Policy means any child, stepchild, parent, stepparent, spouse, domestic partner, sibling, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law of a person security holder, and includes any person (other than a tenant or employee) sharing the household of that person. We will refer

to all of these individuals and entities to whom this Policy applies individually as “you” and “Insider” and collectively as “Insiders.”

Additional trading restrictions in this Policy apply to our officers (as defined in Rule 16a-1(f) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) and directors (together with the officers, the “Section 16 Insiders”) and to the individuals listed on Exhibit A (“Designated Insiders”) who are not Section 16 Insiders but who have regular access to MNPI in the normal course of their job. The list of Designated Insiders may be modified by our Compliance Officer.

If you are aware of MNPI when your employment or service relationship with the Company ends, you still may not trade our securities until that MNPI has become public or is no longer material.

What This Policy Covers

The primary purpose of this Policy is to prevent people who are in possession of MNPI from trading in our stock or other securities on the basis of that MNPI or disclosing MNPI to someone else who trades on the basis of that information.

“Material information” is information about the Company, positive or negative, that a reasonable stockholder would consider important in making a decision to purchase or sell the Company’s securities. Material information can be positive or negative and can relate to virtually any aspect of the Company’s business or its securities.

Examples of material information may include:

•financial information (especially cash balance, burn and runway), including projections of future earnings or losses, or other guidance based on financial results;

•significant regulatory communications or receipt of, or any delay in receipt or failure to receive significant governmental approvals;

•timing and achievement of major development milestones;

•significant developments in or results of studies and trials;

•entry into a new commercial agreement or termination of an existing commercial agreement;

•mergers or acquisitions;

•important pipeline expansion;

•significant cybersecurity incidents or data breaches;

•significant new litigation or regulatory inquires or developments in existing litigation or inquires;

•significant developments in borrowings, or financings or capital investments;

Achieve Life Sciences, Inc. Insider Trading Policy 2

•significant changes in corporate strategy;

•restatements of historical financial statements;

•stock offerings or stock splits; and

•changes in senior executive management or our Board.

This list is illustrative only and is not intended to provide a comprehensive list of circumstances that could result in material information. Determination of what may constitute material information will depend upon the facts and circumstances in each particular situation.

“Nonpublic” means that the confidential information has not yet been shared broadly outside the Company. Please remember as well that we may possess confidential information relating to or belonging to our collaborators, partners or other third parties and that it is equally important that we treat this information with the same care with which we treat our own information. If you are not sure whether information is considered public, you should either consult with our Compliance Officer or assume that the information is nonpublic and treat it as confidential.

This Policy applies to all transactions involving our securities, including common stock, restricted stock units (“RSUs”), options and warrants to purchase common stock and any other debt or equity securities the Company may issue from time to time, such as bonds, preferred stock, convertible notes, as well as to derivative securities relating to the Company’s securities, whether or not issued by the Company, such as exchange-traded options.

PROHIBITED ACTIVITIES AND OTHER RESTRICTIONS

Insider Restrictions

The following is a list of prohibited activities for all Insiders:

•Trade our securities while in possession of MNPI (other than pursuant to a 10b5-1 Plan or a non-Rule 10b5-1 trading arrangement (as defined below) entered into in accordance with this Policy).

•Trade our securities outside of a Trading Window or during a Blackout Period designated by our Compliance Officer (other than pursuant to a 10b5-1 Plan or a non-Rule 10b5-1 trading arrangement entered into in accordance with this Policy). See the definition of “Trading Window” and “Blackout Period” below.

•Unless approved in advance by our Compliance Officer, make a gift, charitable contribution or other transfer without consideration of our securities during a period when the Insider cannot trade.

•Share MNPI with any outside person, unless required by your job and such person is under NDA, or as authorized by our Compliance Officer.

•Give trading advice about the Company, unless the advice is to tell someone not to trade our securities because the trade would violate this Policy or the law.

Achieve Life Sciences, Inc. Insider Trading Policy 3

•Other than the exercise of equity awards issued by us, engage in transactions involving options or other derivative securities on our stock, such as puts and calls, whether on an exchange or in any other market.

•Engage in hedging or monetization transactions involving our securities, such as zero cost collars and forward sale contracts, or contribute our securities to exchange funds in a manner that could be interpreted as hedging in our stock.

•Engage in short sales of our securities, meaning a sale of securities that you do not own, including short sales “against the box.”

•Use or pledge our securities as collateral in a margin account or as collateral for a loan unless the pledge has been approved by our Compliance Officer and is conducted in accordance with any applicable policy or guidelines of the Company regarding pledging.

•Distribute our securities to limited partners, general partners or stockholders of any entity outside of a Trading Window or during a Blackout Period, unless those limited partners, general partners or stockholders have agreed in writing to hold the securities until the next open Trading Window.

•Engage in any of the above activities for securities you own in any other company if you have MNPI about that company obtained in the course of your service to the Company.

Additional Restrictions Applicable to Section 16 Insiders and Designated Insiders

In addition to the restrictions noted above and elsewhere in this Policy, if you are a Section 16 Insider or a Designated Insider, prior to trading our securities other than pursuant to a 10b5-1 Plan or a non-Rule 10b5-1 trading arrangement, you must obtain pre-approval from our Compliance Officer (or in the case of the Compliance Officer, by a different Section 16 Insider) by: (a) providing written notification of the amount and nature of the proposed trade, (b) certifying no earlier than two business days prior to the proposed trade that you have no MNPI and, to your knowledge, you will have no MNPI as of the proposed trade date, and (c) receiving email confirmation from our Compliance Officer approving the trade, which approval can be granted or denied at his or her discretion. You may satisfy (a) and (b) by emailing the required information and certification to our Compliance Officer and must notify the Compliance Officer promptly via email of any changes to the certification in (b) prior to the proposed trade.

We recommend Section 16 Insiders trade in our securities pursuant to a 10b5-1 Plan entered into in accordance with this Policy.

Exceptions to Prohibited Activities

The trading restrictions of this Policy do not apply to the following:

•401(k) Plan. Investing 401(k) plan contributions in a company stock fund in accordance with the terms of our 401(k) plan. However, any changes in your investment election regarding the Company’s securities are subject to trading restrictions under this Policy.

Achieve Life Sciences, Inc. Insider Trading Policy 4

•ESPP. Purchasing our stock through periodic, automatic payroll contributions, or making election changes, under our Employee Stock Purchase Plan. However, any sales of stock acquired under the ESPP are subject to trading restrictions under this Policy.

•Options. Exercising stock options granted under our equity incentive plans for cash or by delivering to the Company previously owned Company stock or through a net exercise of a stock option that is permitted by the Company’s equity incentive plans and that does not involve a sale of shares in the open market. Payment of taxes in connection with exercising stock options granted under our equity incentive plans pursuant to net withholding arrangements approved by the Company for the payment of taxes upon the exercise of stock options and that does not involve a sale of shares in the open market. However, the sale of any shares issued on the exercise of Company-granted stock options, as well as any cashless exercise of Company-granted stock options in which stock is sold on the open market to pay the exercise price or taxes (i.e., “same-day sales”) are subject to trading restrictions under this Policy.

•RSUs. The settlement of RSUs pursuant to a net settlement or a “sale to cover” for non-discretionary, automatic tax withholdings initiated and approved by the Company for the payment of taxes upon the vesting of RSUs.

Other Legal Restrictions

The trading prohibitions of this Policy are not the only stock-trading rules and regulations you need to follow. You should be aware of additional prohibitions and restrictions set by contract or by federal and state securities laws and regulations (e.g., contractual restrictions on the resale of securities, rules on short swing trading by Section 16 Insiders, compliance with Rule 144 under the Securities Act of 1933, as amended, and others). Any Insider who is uncertain whether other prohibitions or restrictions apply should ask our Compliance Officer.

We will not transact in our securities unless in compliance with U.S. securities laws.

WHEN TRADING IS ALLOWED

To promote compliance with insider trading laws, we have designated periods where Insiders can trade in our securities, which are described below:

Trading Windows and Blackout Periods

•You Can Only Trade in a Trading Window. Other than pursuant to a 10b5-1 Plan or a non-Rule 10b5-1 trading arrangement, Insiders are allowed to trade our securities only during a trading window period, which opens after the close of trading on the second full trading day following the widespread public release of our quarterly or year‑end operating results, and closes at the close of trading on the last day of the last month of the Company’s fiscal quarter (the “Trading Window”). For example, if we publicly announce our quarterly financial results after close of trading on a Monday (or before trading begins on a Tuesday), then the first time an Insider can trade our securities is after the close of market on Wednesday (effectively at the opening of the market on Thursday for regular trading). However, if we announce quarterly financial results after trading begins on that

Achieve Life Sciences, Inc. Insider Trading Policy 5

Wednesday, then the first time the Insider can trade is after the close of market on Friday (effectively at the opening of the market on Monday for regular trading).

•Even During a Trading Window, You Are Not Allowed to Trade While in Possession of MNPI. Even during a Trading Window, you still may not trade our securities if you possess MNPI at that time. An Insider who possesses MNPI during a Trading Window may only trade our securities after the close of trading on the next full trading day following our widespread public release of that MNPI.

•You Cannot Trade During a Blackout Period. Even during a Trading Window, our Compliance Officer, at his or her discretion, may designate special trading restrictions (“Blackout Period”) that apply to specific individuals or groups of people (including all Insiders) for as long as our Compliance Officer determines. No Insider subject to a Blackout Period may trade our securities during any such Blackout Period. Additionally, no Insider subject to a Blackout Period is permitted to tell anyone not subject to the Blackout Period that a Blackout Period has been designated or that one previously was in place because that also is confidential information that cannot be disclosed internally or externally.

Permitted Trades Under 10b5‑1 Plans

We allow Insiders to trade in our securities while in possession of MNPI, outside of a Trading Window or during a Blackout Period, pursuant to a “10b5-1 Plan.”

What Is a 10b5-1 Plan? A “10b5-1 Plan” is a written plan for selling or purchasing a predetermined number of shares that is entered into while an Insider is not in possession of MNPI as contemplated in Rule 10b5-1.

How Do I Adopt a 10b5-1 Plan? We will engage a broker to administer our 10b5-1 Plans, and any 10b5-1 Plan that you adopt must be adopted through that broker unless otherwise approved by our Compliance Officer. If you are interested in setting up a 10b5-1 Plan, you should consult with our Compliance Officer and make sure that:

•The 10b5-1 Plan complies with the requirements of Rule 10b5-1 under the Exchange Act and this Policy.

•You have certified to our Compliance Officer in writing, no earlier than two business days prior to the date that the 10b5‑1 Plan is formally adopted (and shall not have withdrawn such certification prior to such adoption), that as of such date and as of the adoption date of the 10b5-1 Plan, (i) you are not and, to your knowledge, will not be, aware of MNPI, (ii) all trades to be made pursuant to the 10b5‑1 Plan will be in accordance with applicable SEC rules, (iii) you are adopting the 10b5‑1 Plan in good faith and not as part of a plan or scheme to evade the prohibitions of Section 10(b) of the Exchange Act and Rule 10b-5 of the Exchange Act, and (iv) you will act in good faith with respect to the 10b5-1 Plan throughout its duration. This certification may be made in an email to our Compliance Officer. You must notify the Compliance Officer promptly via email and withdraw the certification if any changes of circumstances prior to the adoption date of the 10b5-1 Plan have or will render such certification to be inaccurate as of that time.

Achieve Life Sciences, Inc. Insider Trading Policy 6

•The first trade under the 10b5-1 Plan does not occur (i) for a Section 16 Insider:until the later of (A) ninety (90) days after adoption of the 10b5-1 Plan and (B) two (2) business days following the disclosure of the Company’s financial results in a Form 10-Q or Form 10-K for the completed fiscal quarter in which the 10b5-1 Plan was adopted that discloses the Company’s financial results (but not to exceed 120 days following the adoption of the 10b5-1 Plan); and (ii) for persons other than Section 16 Insiders: thirty (30) days after adoption of the 10b5-1 Plan, in each case, following our Compliance Officer’s approval of the 10b5-1 Plan. These waiting periods are collectively referred to as the “Cooling-Off Period.”

•The 10b5-1 Plan is not a single-trade 10b5-1 Plan adopted during the 12-month period immediately following the person’s adoption of another single-trade 10b5-1 Plan, subject to the exceptions noted in Rule 10b5-1, which are provided for you in the Appendix.

•The 10b5-1 Plan is adopted during a Trading Window and not during any Blackout Period.

•A person may have no more than one 10b5-1 Plan adopted at any point in time (i.e., multiple concurrent or overlapping plans are prohibited), subject to the exceptions noted in Rule 10b5-1, which are provided for you in the Appendix. One of these exceptions is for plans authorizing certain “sell-to-cover” transactions.

Approval of a 10b5-1 Plan by our Compliance Officer and/or an acknowledgment of a 10b5-1 Plan by the Company shall not be considered a determination by us, our Compliance Officer, or the Company that the 10b5-1 Plan satisfies the requirements of Rule 10b5-1.

How Do I Modify a 10b5-1 Plan? Once you have an approved 10b5-1 Plan in place, you will need approval from our Compliance Officer to make certain changes to it. Modifying or changing the amount, price, or timing of the purchase or sale of our securities underlying the 10b5-1 Plan (or a modification or change to a written formula or algorithm, or computer program that affects the amount, price, or timing of the purchase or sale of such securities) (any such modification or change, a “Plan Modification”) will be deemed to be the same as terminating your existing 10b5-1 Plan and entering into a new 10b5-1 Plan. As a result, the approval process for a Plan Modification is the same as the approval process for initially adopting a 10b5-1 Plan, including being subject to a new Cooling-Off Period. We discourage you from making multiple Plan Modifications, as that may give the appearance that you are trading on MNPI under the guise of that plan. Plan Modifications can only be made during a Trading Window and not during any Blackout Period and only when you are not in possession of MNPI. For other modifications to a 10b5-1 Plan, you must notify the Compliance Officer of such modification in writing at least two business days prior to the modification and such modification must be approved by the Compliance Officer.

How Do I Terminate a 10b5-1 Plan? Once you have an approved 10b5-1 Plan in place, you will need approval from our Compliance Officer to terminate it.

Other Trading Arrangements

Achieve Life Sciences, Inc. Insider Trading Policy 7

Insiders are not allowed to enter into “non-Rule 10b5-1 trading arrangements” (as defined in Regulation S-K Item 408(c)) unless otherwise approved in advance by the Compliance Officer.

THERE ARE SIGNIFICANT CONSEQUENCES

FOR VIOLATING INSIDER TRADING LAWS

The consequences of violating the insider trading laws can be severe. People who violate insider trading laws may be required to disgorge profits made or losses avoided by trading, pay the loss suffered by the persons who purchased securities from or sold securities to the insider tippee, pay civil fines of up to three times the profit made or loss avoided, pay a criminal penalty of up to $5 million for individuals and $25 million for entities and serve a prison term of up to 20 years. In addition, individual directors, officers and other supervisory personnel may also be required to pay major civil or criminal penalties for failure to take appropriate steps to prevent insider trading by those under their supervision, influence or control.

CONSEQUENCES OF VIOLATING THIS POLICY

We may impose discipline on anyone violating this Policy, up to and including termination of employment, and we may issue stop transfer orders to our transfer agent to prevent any attempted trades that would violate this Policy.

ADMINISTRATION

The Compliance Officer will administer and interpret this Policy and enforce compliance as needed. The Compliance Officer may consult with the Company’s outside legal counsel as needed. The Compliance Officer may designate other individuals to perform the Compliance Officer’s duties under this Policy.

Neither the Company nor the Compliance Officer will be liable for any act made under this Policy. Neither the Company nor the Compliance Officer is responsible for any failure to approve a trade or for imposing any Blackout Period.

REPORTING VIOLATIONS

Any Insider who violates this Policy or any federal or state laws governing insider trading or tipping, or who knows of any such violation by any other Insider, must report the violation immediately to our Compliance Officer. To anonymously submit a concern or complaint regarding a possible violation of this Policy, you should follow the procedures outlined in our Whistleblower Policy. Anyone who violates this Policy may be subject to disciplinary measures, which may include termination of employment.

CHANGES TO THIS POLICY

Our Board reserves the right in its sole discretion to modify or grant waivers to this Policy. Any amendments or waiver may be publicly disclosed if required by applicable laws, rules and regulations. For the avoidance of doubt, unless explicitly stated by the Board, any waiver, amendment or modification of the Policy by the Board shall not be considered a waiver of the Company’s Code of Conduct & Ethics.

Achieve Life Sciences, Inc. Insider Trading Policy 8

EFFECTIVE DATE

The effective date of this Policy is August 15, 2023. The amendments to this Policy would not apply to any existing 10b5-1 Plan that was entered into prior to February 27, 2023, except to the extent that a Plan Modification is made to such plan after February 27, 2023.

Achieve Life Sciences, Inc. Insider Trading Policy 9

Exhibit A

Designated Insiders

All Vice President level employees and above

All members of the Clinical Department

All members of the Regulatory Affairs and Biometrics Departments

All members of the CMC and QA Departments

All members of the Administration, IT, Legal, Finance and Accounting Departments

Achieve Life Sciences, Inc. Insider Trading Policy A-1

Appendix

Exceptions to the Multiple, Overlapping 10b5-1 Plan Restriction

Such exceptions are:

•An eligible “sell-to-cover” 10b5-1 Plan where such plan authorizes an agent to sell only such securities as are necessary to satisfy tax withholding obligations arising exclusively from the vesting of a compensatory award, such as restricted stock or stock appreciation rights, and the Insider does not otherwise exercise control over the timing of such sales. For the avoidance of doubt, this exception does not extend to sales incident to the exercise of option awards.

•A series of separate contracts with different broker-dealers or other agents acting on behalf of the person (other than the Company) to execute trades thereunder may be treated as a single 10b5-1 Plan, provided that the individual constituent contracts with each broker-dealer or other agent, when taken together as a whole, meet all of the applicable conditions of and remain collectively subject to the provisions of Rule 10b5-1, including that a modification of any individual contract acts as modification of the whole 10b5-1 Plan, as defined in Rule 10b5-1(c)(1)(iv). The substitution of a broker-dealer or other agent acting on behalf of the person (other than the Company) for another broker-dealer that is executing trades pursuant to a 10b5-1 Plan shall not be a “Plan Modification” as long as the purchase or sales instructions applicable to the substitute and substituted broker are identical with respect to the prices of securities to be purchased or sold, dates of the purchases or sales to be executed, and amount of securities to be purchased or sold.

•One later-commencing 10b5-1 Plan for purchases or sales of any securities of the Company on the open market under which trading is not authorized to begin until after all trades under the earlier-commencing 10b5-1 Plan are completed or expired without execution. However, the first trade under such later-commencing 10b5-1 Plan must be scheduled after the “Effective Cooling-Off Period,” or the Cooling-Off Period that would be applicable to the later-commencing 10b5-1 Plan if the date of adoption of the later-commencing 10b5-1 Plan were deemed to be the date of termination of the earlier-commencing 10b5-1 Plan.

Exceptions to the Single-Trade 10b5-1 Plan Restriction

There is an exception for eligible “sell-to-cover” 10b5-1 Plans where the plan authorizes an agent to sell only such securities as are necessary to satisfy tax withholding obligations arising exclusively from the vesting of a compensatory award, such as restricted stock or stock appreciation rights, and the Insider does not otherwise exercise control over the timing of such sales.

EX-21.1

Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

Achieve Life Sciences Technologies Inc., incorporated under the federal laws of Canada

Achieve Life Science Inc., a Delaware Corporation

Extab Corporation, a Delaware Corporation

Achieve Pharma UK Limited, a Limited Company in the United Kingdom

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-168820, 333-190480, 333-197937, 333-206569, 333- 221473, 333-228253, 333-231520, 333-236059, 333-238505, 333-254156, 333-263421, 333-270625, 333-278335, 333-283630 and 333-284208), Form S-1 (File Nos. 333-228596, 333-232817, 333-234530, 333-238970, 333-250074 and 333-251088) and Form S-3 (File Nos. 333-261811, 333-269059, 333-278961, 333-280585 and 333-283070) of Achieve Life Sciences, Inc. of our report dated March 11, 2025 relating to the financial statements, which appears in this Form 10-K.

/s/PricewaterhouseCoopers LLP

Chartered Professional Accountants

Vancouver, Canada
March 11, 2025

EX-31.1

Exhibit 31.1

Certification Pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934

I, Richard Stewart, certify that:

1. I have reviewed this annual report on Form 10-K of Achieve Life Sciences, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 11, 2025

/s/ RICHARD STEWART

Richard Stewart

Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification Pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934

I, Mark Oki, certify that:

1.I have reviewed this annual report on Form 10-K of Achieve Life Sciences, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: March 11,2025

/s/ MARK OKI

Mark Oki

Chief Financial Officer (Principal Financial Officer)

EX-32.1

Exhibit 32.1

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

I, Richard Stewart, Chief Executive Officer and Principal Executive Officer of Achieve Life Sciences, Inc. (the “Company”), certify, pursuant to Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 and 18 U.S.C. Section 1350, that:

(1) the Annual Report on Form 10-K of the Company for the year ended December 31, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 780(d)); and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 11, 2025

/s/ RICHARD STEWART

Richard Stewart

Chief Executive Officer (Principal Executive Officer)

EX-32.2

Exhibit 32.2

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

I, Mark Oki, Chief Financial Officer and Principal Financial Officer of Achieve Life Sciences, Inc. (the “Company”), certify, pursuant to Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 and 18 U.S.C. Section 1350, that:

(1)the Annual Report on Form 10-K of the Company for the year ended December 31, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 780(d)); and

(2)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: March 11, 2025

/s/ MARK OKI

Mark Oki

Chief Financial Officer (Principal Financial Officer)

XML

Document and Entity Information - USD ($)

12 Months Ended

Dec. 31, 2024

Mar. 11, 2025

Jun. 30, 2024

Document Information [Line Items]

Document Type

10-K

Amendment Flag

false

Document Period End Date

Dec. 31, 2024

Document Fiscal Year Focus

2024

Document Fiscal Period Focus

FY

Document Transition Report

false

Document Annual Report

true

Trading Symbol

ACHV

Entity Incorporation, State or Country Code

DE

Entity Registrant Name

Achieve Life Sciences, Inc.

Entity Central Index Key

0000949858

Current Fiscal Year End Date

--12-31

Entity Well-known Seasoned Issuer

No

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Voluntary Filers

No

Entity Filer Category

Non-accelerated Filer

Entity Shell Company

false

Entity Small Business

true

Entity Emerging Growth Company

false

Entity File Number

033-80623

Entity Tax Identification Number

95-4343413

Entity Address, Address Line One

1040 West Georgia Street

Entity Address, Address Line Two

Suite 1030

Entity Address, City or Town

Vancouver

Entity Address, State or Province

BC

Entity Address, Postal Zip Code

V6E 4H1

City Area Code

604

Local Phone Number

210-2217

Entity Common Stock, Shares Outstanding

34,685,072

Entity Public Float

$ 144,081,005

Title of 12(b) Security

Common Stock, par value $0.001 per share

Security Exchange Name

NASDAQ

ICFR Auditor Attestation Flag

false

Auditor Firm ID

271

Auditor Name

PricewaterhouseCoopers LLP

Auditor Location

Vancouver, Canada

Documents Incorporated by Reference

Portions of the Registrant’s Definitive Proxy Statement for its 2025 Annual Meeting of Stockholders (“Proxy Statement”), to be filed within 120 days of the Registrant’s fiscal year ended December 31, 2024, is incorporated by reference into Part III of this Annual Report on Form 10-K.

Document Financial Statement Error Correction [Flag]

false

Auditor Opinion

We have audited the accompanying consolidated balance sheets of Achieve Life Sciences, Inc. and its subsidiaries (the Company) as of December 31, 2024 and 2023, and the related consolidated statements of loss and comprehensive loss, of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2024, including the related notes (collectively referred to as the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2024 in conformity with accounting principles generally accepted in the United States of America

Other Address

Document Information [Line Items]

Entity Address, Address Line One

22722 29th Drive SE

Entity Address, Address Line Two

Suite 100

Entity Address, City or Town

Bothell

Entity Address, State or Province

WA

Entity Address, Postal Zip Code

98021

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents [note 3 and note 7]	$ 12,753	$ 15,546
Marketable securities [note 7]	21,607
Grant receivable [note 4]		111
Prepaid expenses and other assets	2,107	1,325
Total current assets	36,467	16,982
Restricted cash and other assets [note 7 and note 8]	39	92
Right-of-use assets [note 12]	119	66
License agreement [note 5 and note 6]	974	1,197
Goodwill	1,034	1,034
Total assets	38,633	19,371
Current liabilities:
Accounts payable	1,950	618
Accrued liabilities other	573	351
Accrued clinical liabilities	1,077	280
Accrued compensation	3,027	2,311
Contingent consideration [note 6 and note 7]		528
Current portion of long-term obligations [note 12]	55	63
Current portion of convertible debt [note 7 and note 9]		16,662
Total current liabilities	6,682	20,813
Non-current portion of convertible debt [note 7 and note 9]	9,837
Contingent consideration [note 6 and note 7]	1,149
Long-term obligations [note 12]	66	6
Total liabilities	17,734	20,819
Commitments and contingencies [note 12]
Stockholders' equity:
Common stock, $0.001 par value, 150,000,000 shares authorized, 34,685,072 and 21,165,760 issued and outstanding at December 31, 2024 and December 31, 2023, respectively.	103	90
Additional paid-in capital	226,343	164,209
Accumulated deficit	(205,578)	(165,751)
Accumulated other comprehensive income	31	4
Total stockholders' equity	20,899	(1,448)
Total liabilities and stockholders' equity	38,633	19,371
Series A Convertible Preferred Stock [Member]
Stockholders' equity:
Convertible preferred stock, value
Series B Convertible Preferred Stock [Member]
Stockholders' equity:
Convertible preferred stock, value

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2024	Dec. 31, 2023
Preferred stock, par value	$ 0.001
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	34,685,072	21,165,760
Common stock, shares outstanding	34,685,072	21,165,760
Series A Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares designated	9,158	9,158
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Series B Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares designated	6,256	6,256
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0

XML

Consolidated Statements of Loss and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
EXPENSES
Research and development	$ 22,817	$ 15,814	$ 30,078
General and administrative	16,252	11,436	10,722
Total operating expenses	39,069	27,250	40,800
OTHER INCOME (EXPENSE)
Interest income	2,356	825	199
Interest expense [note 9]	(2,180)	(2,853)	(1,789)
Change in fair value of contingent consideration [note 6 and note 7]	(621)	(528)
Loss on extinguishment of 2023 SVB convertible term loan [note 9]	(283)
Other expense	(30)	(9)	40
Total other expense	(758)	(2,565)	(1,550)
Net Loss	(39,827)	(29,815)	(42,350)
OTHER COMPREHENSIVE INCOME
Net unrealized loss on securities	27
Total other comprehensive income (loss)	27
Comprehensive loss	$ (39,800)	$ (29,815)	$ (42,350)
Basic net loss per common share [note 11 [i]]	$ (1.24)	$ (1.5)	$ (4)
Diluted net loss per common share [note 11 [i]]	$ (1.24)	$ (1.5)	$ (4)
Shares used in computation of basic net loss per common share [note 11 [i]]	32,071,146	19,827,354	10,593,034
Shares used in computation of Diluted net loss per common share [note 11 [i]]	32,071,146	19,827,354	10,593,034

XML

Consolidated Statements of Stockholder's Equity - USD ($) $ in Thousands	Total	November 2022 Private Placement [Member]	May 2023 Private Placement [Member]	February 2024 Private Placement [Member]	Common stock [Member]	Common stock [Member] November 2022 Private Placement [Member]	Common stock [Member] May 2023 Private Placement [Member]	Common stock [Member] February 2024 Private Placement [Member]	Additional paid-in capital [Member]	Additional paid-in capital [Member] November 2022 Private Placement [Member]	Additional paid-in capital [Member] May 2023 Private Placement [Member]	Additional paid-in capital [Member] February 2024 Private Placement [Member]	Accumulated other comprehensive income (loss) [Member]	Accumulated deficit [Member]
Beginning Balance at Dec. 31, 2021	$ 28,042				$ 79				$ 121,545				$ 4	$ (93,586)
Beginning Balance, Shares at Dec. 31, 2021					9,453,542
Stock-based compensation expense	3,270								3,270
Shares issued on exercise of warrants	24								24
Shares issued on exercise of warrants, Shares					3,709
Shares issued from purchase agreement with Virtu	1,330								1,330
Shares issued from purchase agreement with Virtu, Shares					200,000
Shares issued	26	$ 17,882				$ 8			26	$ 17,874
Shares issued, Shares					3,584	8,186,282
Restricted stock unit settlements, Shares					26,625
Restricted stock unit settlements withheld and retired to treasury	(47)								(47)
Restricted stock unit settlements withheld and retired to treasury, Shares					(5,605)
Shares issued under employee share purchase plan	126								126
Shares issued under employee share purchase plan, Shares					28,892
Net loss	(42,350)													(42,350)
Ending Balance at Dec. 31, 2022	8,303				$ 87				144,148				4	(135,936)
Ending Balance, Shares at Dec. 31, 2022					17,897,029
Stock-based compensation expense	3,439								3,439
Costs relating to financing and purchase agreement		$ (30)								$ (30)
Shares issued on exercise of warrants	227								227
Shares issued on exercise of warrants, Shares					98,333
Shares issued	273		$ 15,301				$ 3		273		$ 15,298
Shares issued, Shares					60,000		3,000,000
SVB convertible debt refinancing discount	$ 1,074								1,074
Restricted stock unit settlements, Shares	139,750				139,750
Restricted stock unit settlements withheld and retired to treasury	$ (220)								(220)
Restricted stock unit settlements withheld and retired to treasury, Shares					(29,352)
Net loss	(29,815)													(29,815)
Ending Balance at Dec. 31, 2023	(1,448)				$ 90				164,209				4	(165,751)
Ending Balance, Shares at Dec. 31, 2023					21,165,760
Stock-based compensation expense	5,325								5,325
Shares issued on exercise of warrants	$ 682								682
Shares issued on exercise of warrants, Shares					295,126
Shares issued				$ 56,076				$ 13				$ 56,063
Shares issued, Shares								13,086,151
Restricted stock unit settlements, Shares	113,125				113,125
Restricted stock unit settlements withheld and retired to treasury	$ (114)								(114)
Restricted stock unit settlements withheld and retired to treasury, Shares					(23,733)
Shares issued under employee share purchase plan	178								178
Shares issued under employee share purchase plan, Shares					48,643
Other comprehensive income	27												27
Net loss	(39,827)													(39,827)
Ending Balance at Dec. 31, 2024	$ 20,899				$ 103				$ 226,343				$ 31	$ (205,578)
Ending Balance, Shares at Dec. 31, 2024					34,685,072

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Activities:
Net loss	$ (39,827)	$ (29,815)	$ (42,350)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization [note 5]	229	228	236
Stock-based compensation [note 11[c], note 11[d] and note 11[e]]	5,325	3,439	3,270
Shares issued as settlement with trade vendor		273	26
Accrued interest on SVB convertible debt [note 9]	799	1,216	1,170
Amortization of 2024 SVB convertible term loan transaction costs [note 9]	23
Accretion of discount on modification of debt [note 9]	365	430
Loss on extinguishment of 2023 SVB convertible term loan [note 9]	283
Contigent consideration [note 6 and note 7]	621	528
Changes in operating assets and liabilities:
Grant receivable [note 4]	111	(6)	48
Prepaid expenses and other assets	(765)	1,176	(931)
Accounts payable	1,332	(1,042)	799
Accrued liabilities other	222	(32)	55
Accrued clinical liabilities	797	(1,449)	376
Accrued compensation	716	633	(263)
Lease obligation	(1)	(58)	(5)
Net cash used in operating activities	(29,770)	(24,479)	(37,569)
Financing Activities:
Proceeds from exercise of warrants [note 11[g]]	682	227	24
Proceeds from ATM, net of issuance costs [note 11[b]]			1,330
Proceeds from employee stock purchase plan [note 11[e]]	178		126
Taxes paid related to net share settlement of equity awards	(114)	(220)	(47)
Repayment of 2023 SVB convertible term loan [note 7 and note 9]	(18,109)
Receipt of 2024 SVB convertible term loan less transaction costs [note 7 and note 9]	9,814
Net cash provided by financing activities	48,527	15,278	19,315
Investing Activities:
Purchase of property and equipment		(21)
Purchase of investments	(47,887)
Maturities of investments	26,307
Net cash provided by (used in) investing activities	(21,580)	(21)
Effect of exchange rate changes on cash		(3)	3
Net increase (decrease) in cash, cash equivalents and restricted cash	(2,823)	(9,225)	(18,251)
Cash, cash equivalents and restricted cash at beginning of year	15,596	24,821	43,072
Cash, cash equivalents and restricted cash at end of year	12,773	15,596	24,821
November 2022 Private Placement [Member]
Financing Activities:
Proceeds from private placement, net of issuance costs [note 11[b]]		(30)	$ 17,882
May 2023 Private Placement [Member]
Financing Activities:
Proceeds from private placement, net of issuance costs [note 11[b]]		$ 15,301
February 2024 Registered Direct Offering [Member]
Financing Activities:
Proceeds from registered direct offering, net of issuance costs	$ 56,076

XML

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ (39,827)	$ (29,815)	$ (42,350)

XML

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
NonRule10b51ArrModifiedFlag	false
Rule10b51ArrModifiedFlag	false

XML

Insider Trading Policies and Procedures	12 Months Ended
	Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

XML

Cybersecurity Risk Management, Strategy, and Governance

12 Months Ended

Dec. 31, 2024

Cybersecurity Risk Management, Strategy, and Governance [Line Items]

Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]

Cybersecurity Risk Management and Strategy

Our process for managing cybersecurity risk is comprised of technologies, controls, and procedures designed to detect, assess, and manage threats and control access. We utilize a variety of systems, software, and services including firewalls, network and endpoint monitoring, anti-malware, detection and response, patch management, and backups to mitigate, identify, analyze, and respond to identified vulnerabilities and incidents in a timely manner.

We evaluate our security posture on an ongoing basis via vulnerability scans, penetration testing, and threat intelligence monitoring. We periodically conduct third-party security assessments and regularly evaluate our processes against industry standard security frameworks. We conduct regular security training to elevate awareness and foster a security conscious culture among all employees.

We leverage third party service providers and solutions in many aspects of our operations. Our vendor management and oversight procedures include assessment of cyber security risk.

We do not believe there are any currently known cybersecurity risks that are reasonably likely to materially impact our business strategy, operations, or financial condition. If we were to experience a material cybersecurity incident in the future, such incident may have an adverse effect, including on our business operations, operating results, or financial condition. For more information regarding cybersecurity risks that we face and the related potential impacts on our business, see the risk factor titled “Our internal computer systems, or those of our third-party collaborators or other service providers, may fail or suffer security breaches and cyber-attacks, which could result in a material disruption of our development programs.”

Cybersecurity Governance

Cybersecurity is an important part of our risk management processes and an area of increasing focus for our board of directors, or Board, and management.

The Audit Committee of our Board, or Audit Committee, is responsible for the oversight of risks from cybersecurity threats. At least annually, the Audit Committee receives an overview from management of our cybersecurity threat risk management and strategy processes covering topics such as data security posture, results from third-party assessments, progress towards pre-determined risk-mitigation-related goals, our incident response plan, and material cybersecurity threat risks or incidents and developments, as well as the steps management has taken to respond to such risks. Members of the Audit Committee are also encouraged to regularly engage in

ad hoc conversations with management on cybersecurity-related news events and discuss any updates to our cybersecurity risk management and strategy programs. Potential material cybersecurity threat risks are also considered during Board meeting discussions of important matters like risk management, business continuity planning, and other relevant matters.

Our cybersecurity risk assessment and management processes are implemented and maintained by certain members of our management, including our Senior Director of Information Technology who has served in various roles managing information technology and information security for over twenty-five years and reports directly to the Chief Financial Officer.

Management is also responsible for hiring appropriate personnel, integrating cybersecurity considerations into our overall risk management strategy, and for communicating key priorities to employees, as well as for approving budgets, helping prepare for cybersecurity incidents, approving cybersecurity processes, and reviewing security assessments and other security-related reports.

Our cybersecurity incident response and vulnerability management processes involve management, who participates in our disclosure controls and procedures. Our cybersecurity incident response and vulnerability management processes are designed to escalate certain cybersecurity incidents and vulnerabilities to members of management depending on the circumstances, including work with the company’s incident response team to help us mitigate and remediate cybersecurity incidents of which they are notified. In addition, the company’s incident response processes include reporting to the Audit Committee for certain cybersecurity incidents.

Management is involved with our efforts to prevent, detect, and mitigate cybersecurity incidents by overseeing preparation of cybersecurity policies and procedures, testing of incident response plans, and engagement of vendors to conduct penetration tests. Management participates in cybersecurity incident response efforts by being a member of the incident response team and helping direct our response to cybersecurity incidents.

Cybersecurity Risk Management Processes Integrated [Flag]

true

Cybersecurity Risk Management Processes Integrated [Text Block]

Management is also responsible for hiring appropriate personnel, integrating cybersecurity considerations into our overall risk management strategy, and for communicating key priorities to employees, as well as for approving budgets, helping prepare for cybersecurity incidents, approving cybersecurity processes, and reviewing security assessments and other security-related reports.

Cybersecurity Risk Management Third Party Engaged [Flag]

true

Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]

true

Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]

false

Cybersecurity Risk Board of Directors Oversight [Text Block]

Cybersecurity is an important part of our risk management processes and an area of increasing focus for our board of directors, or Board, and management.

The Audit Committee of our Board, or Audit Committee, is responsible for the oversight of risks from cybersecurity threats. At least annually, the Audit Committee receives an overview from management of our cybersecurity threat risk management and strategy processes covering topics such as data security posture, results from third-party assessments, progress towards pre-determined risk-mitigation-related goals, our incident response plan, and material cybersecurity threat risks or incidents and developments, as well as the steps management has taken to respond to such risks. Members of the Audit Committee are also encouraged to regularly engage in

ad hoc conversations with management on cybersecurity-related news events and discuss any updates to our cybersecurity risk management and strategy programs. Potential material cybersecurity threat risks are also considered during Board meeting discussions of important matters like risk management, business continuity planning, and other relevant matters.

Our cybersecurity risk assessment and management processes are implemented and maintained by certain members of our management, including our Senior Director of Information Technology who has served in various roles managing information technology and information security for over twenty-five years and reports directly to the Chief Financial Officer.

Management is also responsible for hiring appropriate personnel, integrating cybersecurity considerations into our overall risk management strategy, and for communicating key priorities to employees, as well as for approving budgets, helping prepare for cybersecurity incidents, approving cybersecurity processes, and reviewing security assessments and other security-related reports.

Our cybersecurity incident response and vulnerability management processes involve management, who participates in our disclosure controls and procedures. Our cybersecurity incident response and vulnerability management processes are designed to escalate certain cybersecurity incidents and vulnerabilities to members of management depending on the circumstances, including work with the company’s incident response team to help us mitigate and remediate cybersecurity incidents of which they are notified. In addition, the company’s incident response processes include reporting to the Audit Committee for certain cybersecurity incidents.

Management is involved with our efforts to prevent, detect, and mitigate cybersecurity incidents by overseeing preparation of cybersecurity policies and procedures, testing of incident response plans, and engagement of vendors to conduct penetration tests. Management participates in cybersecurity incident response efforts by being a member of the incident response team and helping direct our response to cybersecurity incidents.

Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]

The Audit Committee of our Board, or Audit Committee, is responsible for the oversight of risks from cybersecurity threats. At least annually, the Audit Committee receives an overview from management of our cybersecurity threat risk management and strategy processes covering topics such as data security posture, results from third-party assessments, progress towards pre-determined risk-mitigation-related goals, our incident response plan, and material cybersecurity threat risks or incidents and developments, as well as the steps management has taken to respond to such risks. Members of the Audit Committee are also encouraged to regularly engage in

ad hoc conversations with management on cybersecurity-related news events and discuss any updates to our cybersecurity risk management and strategy programs. Potential material cybersecurity threat risks are also considered during Board meeting discussions of important matters like risk management, business continuity planning, and other relevant matters.

Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]

Audit Committee receives an overview from management of our cybersecurity threat risk management and strategy processes covering topics such as data security posture, results from third-party assessments, progress towards pre-determined risk-mitigation-related goals, our incident response plan, and material cybersecurity threat risks or incidents and developments, as well as the steps management has taken to respond to such risks. Members of the Audit Committee are also encouraged to regularly engage in

ad hoc conversations with management on cybersecurity-related news events and discuss any updates to our cybersecurity risk management and strategy programs. Potential material cybersecurity threat risks are also considered during Board meeting discussions of important matters like risk management, business continuity planning, and other relevant matters.

Cybersecurity Risk Role of Management [Text Block]

Our cybersecurity risk assessment and management processes are implemented and maintained by certain members of our management, including our Senior Director of Information Technology who has served in various roles managing information technology and information security for over twenty-five years and reports directly to the Chief Financial Officer.

Management is also responsible for hiring appropriate personnel, integrating cybersecurity considerations into our overall risk management strategy, and for communicating key priorities to employees, as well as for approving budgets, helping prepare for cybersecurity incidents, approving cybersecurity processes, and reviewing security assessments and other security-related reports.

Our cybersecurity incident response and vulnerability management processes involve management, who participates in our disclosure controls and procedures. Our cybersecurity incident response and vulnerability management processes are designed to escalate certain cybersecurity incidents and vulnerabilities to members of management depending on the circumstances, including work with the company’s incident response team to help us mitigate and remediate cybersecurity incidents of which they are notified. In addition, the company’s incident response processes include reporting to the Audit Committee for certain cybersecurity incidents.

Management is involved with our efforts to prevent, detect, and mitigate cybersecurity incidents by overseeing preparation of cybersecurity policies and procedures, testing of incident response plans, and engagement of vendors to conduct penetration tests. Management participates in cybersecurity incident response efforts by being a member of the incident response team and helping direct our response to cybersecurity incidents.

Cybersecurity Risk Management Positions or Committees Responsible [Flag]

true

Cybersecurity Risk Management Positions or Committees Responsible [Text Block]

Our cybersecurity risk assessment and management processes are implemented and maintained by certain members of our management, including our Senior Director of Information Technology

Cybersecurity Risk Management Expertise of Management Responsible [Text Block]

Our cybersecurity risk assessment and management processes are implemented and maintained by certain members of our management, including our Senior Director of Information Technology who has served in various roles managing information technology and information security for over twenty-five years and reports directly to the Chief Financial Officer.

Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]

Management is involved with our efforts to prevent, detect, and mitigate cybersecurity incidents by overseeing preparation of cybersecurity policies and procedures, testing of incident response plans, and engagement of vendors to conduct penetration tests. Management participates in cybersecurity incident response efforts by being a member of the incident response team and helping direct our response to cybersecurity incidents.

Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]

true

XML

Nature of Business, Basis of Presentation and Liquidity Risk

12 Months Ended

Dec. 31, 2024

Accounting Policies [Abstract]

Nature of Business, Basis of Presentation and Going Concern Uncertainty

1. NATURE OF BUSINESS, BASIS OF PRESENTATION AND GOING CONCERN UNCERTAINTY

Achieve Life Sciences, Inc. (referred to as “Achieve,” “we,” “us,” or “our”) is a late-stage clinical specialty pharmaceutical company committed to the global development and commercialization of cytisinicline for smoking cessation and nicotine dependence. We were incorporated in the state of Delaware, and operate out of Bothell, Washington and Vancouver, British Columbia.

Going Concern Uncertainty

The accompanying financial statements have been prepared assuming we will continue to operate as a going concern, which contemplates the realization of assets and settlement of liabilities and commitments in the normal course of business.

We have historically experienced recurring losses from operations and have incurred an accumulated deficit of $205.6 million through December 31, 2024. As of December 31, 2024, we had cash, cash equivalents and marketable securities of $34.4 million and a positive working capital balance of $29.8 million. For the year ended December 31, 2024, we incurred a net loss of $39.8 million and net cash used in operating activities was $29.8 million.

Substantial doubt exists as to our ability to continue as a going concern. Our ability to continue as a going concern is subject to material uncertainty and dependent on our ability to obtain additional financing. We have historically financed our operations through equity offerings and/or debt financings. There can be no assurance that financing from these or other sources will be available to us in the future. Without additional funds, we may be forced to delay, scale back or eliminate some of our research and development, or R&D, activities or other operations and potentially delay product development in an effort to provide sufficient funds to continue our operations. If any of these events occurs, our ability to achieve our development and commercialization goals would be adversely affected.

Our current resources are insufficient to fund our planned operations for the next 12 months. We will continue to require substantial additional capital to continue our clinical development and commercialization activities. Accordingly, we will need to raise substantial additional capital from the sale of our securities, debt, partnering arrangements, non-dilutive fundraising or other financing transactions in order to continue to fund our operations and finance the remaining development and commercialization of our product candidate. The amount and timing of our future funding requirements will depend on many factors, including the pace and results of our clinical development efforts. The uncertainty with respect to our operations and the market generally may also make it challenging to raise additional capital on favorable terms, if at all. Failure to raise capital as and when needed, on favorable terms or at all, will have a negative impact on our financial condition and our ability to develop our product candidate. We expect our expenses to substantially increase over time in connection with our ongoing activities, particularly as we advance our product candidate in clinical development and support future commercialization.

We are required to keep substantially all of our cash and cash equivalents with a single financial institution, Silicon Valley Bank, or SVB, a division of First-Citizens Bank & Trust Company, or FCB, as required by the covenants of our New Debt Agreement (Note 3 – Financial Instruments and Risk - Concentration of Cash and Cash Equivalents Risk and Note 9 – Convertible Debt).

Our commercial bank balances exceed federal insurance limits. We have not experienced any losses in our cash and cash equivalents for the years ended December 31, 2024 and 2023.

These consolidated financial statements do not include any adjustments to the amounts and classification of assets and liabilities that might be necessary should we be unable to continue as a going concern. Such adjustments could be material.

Basis of Presentation

The consolidated financial statements include the accounts of Achieve and our wholly owned subsidiaries, Achieve Life Sciences Technologies Inc., Achieve Life Science, Inc., Extab Corporation, and Achieve Pharma UK Limited. All intercompany balances and transactions have been eliminated.

XML

Accounting Policies

12 Months Ended

Dec. 31, 2024

Accounting Policies [Abstract]

Accounting Policies

2. ACCOUNTING POLICIES

Significant Accounting Policies

Use of Estimates

The preparation of consolidated financial statements in conformity with United States generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and notes thereto. Actual results could differ from these estimates. Estimates and assumptions principally relate to estimates of contingent considerations, the initial fair value and forfeiture rates of stock options issued to employees and consultants, the estimated compensation cost on performance restricted stock unit awards, clinical trial and manufacturing accruals, estimated useful lives of property, plant, equipment and intangible assets, estimates and assumptions in goodwill impairment assessment, estimates and assumptions in contingent liabilities.

Cash Equivalents

We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents, which we consider as available for sale and carry at fair value, with unrealized gains and losses, if any, reported as accumulated other comprehensive income or loss, which is a separate component of stockholders’ equity.

Marketable Securities

Marketable securities consist of financial instruments purchased with an original maturity of greater than three months and less than one year. We consider our marketable securities as available-for-sale and carry them at fair value, with unrealized gains and losses, if any, reported as accumulated other comprehensive income or loss, which is a separate component of stockholders’ equity. Realized gains and losses on the sale or impairment, if any, of these securities, are recognized in net income or loss. The cost of investments sold is based on the specific identification method.

Fair value of financial instruments

The fair value of our marketable securities is based on quoted market prices and trade data for comparable securities.

Other financial instruments including accounts payable, accrued liabilities other, accrued clinical liabilities and accrued compensation are carried at cost, which we believe approximates fair value because of the short-term maturities of these instruments.

Intellectual Property

The costs of acquiring intellectual property rights to be used in the research and development process, including licensing fees and milestone payments, are charged to research and development expense as incurred in situations where we have not identified an alternative future use for the acquired rights, and are capitalized in situations where we have identified an alternative future use. No costs associated with acquiring intellectual property rights have been capitalized to date. Costs of maintaining intellectual property rights are expensed as incurred.

Intangible Assets

Our intangible assets are subject to amortization and are amortized using the straight-line method over their estimated period of benefit. We evaluate the carrying amount of intangible assets periodically by taking into account events or circumstances that may warrant revised estimates of useful lives or that indicate the asset may be impaired.

Goodwill

Goodwill acquired in a business combination is assigned to the reporting unit that is expected to benefit from the combination as of the acquisition date. Goodwill is tested for impairment on an annual basis or, more frequently, if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit.

Sopharma Share Purchase Agreement Contingent Consideration

We may be required to pay future contingent consideration to Sopharma, AD as part of the Share Purchase Agreement, which is contingent upon obtaining regulatory approval of cytisinicline by the FDA or the EMA.We determine the fair value of the contingent consideration using a probability based discounted cash flow approach whereby we forecast the timing of the cash flow of the related future payment based on cytisinicline's current clinical development phase and the remaining requirements for regulatory approval. We then discount the expected payment amount to calculate the present value and then apply a probability of success in obtaining regulatory approval as of the valuation date. We evaluate the underlying projection used in determining the fair value each period and make updates as necessary.

The significant assumptions we use to value the contingent consideration are the forecasted timing of the future payment, the risk-adjusted discount rate and the probability of success which are all considered significant unobservable inputs, and as such, the liability is classified as a Level 3 measurement. The risk-adjusted discount rate is adjusted for credit risk. An increase in the discount rate or decrease in the probability of success would result in a decrease in the fair value of the contingent consideration. Conversely, a decrease in the discount rate or increase in the probability of success would result in an increase in the fair value of the contingent consideration.

Property and Equipment

Property and equipment assets are recorded at cost less accumulated depreciation. Depreciation expense on assets acquired under capital lease is recorded within depreciation expense. Depreciation is recorded on a straight-line basis over the following periods:

Computer equipment	3 years
Furniture and fixtures	5 years
Machinery and equipment	5 - 10 years
Leasehold improvements and equipment under capital lease	Over the term of the lease

Impairment of Long-Lived Assets

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the asset’s carrying amount may not be recoverable. We conduct our long-lived asset impairment analyses in accordance with ASC 360-10-15, “Impairment or Disposal of Long-Lived Assets.” ASC 360-10-15 requires us to group assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and evaluate the asset group against the sum of the undiscounted future cash flows. If the undiscounted cash flows do not indicate the carrying amount of the asset is recoverable, an impairment charge is measured as the amount by which the carrying amount of the asset group exceeds its fair value based on discounted cash flow analysis or appraisals.

Income Taxes

Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are recognized for the differences between the carrying values of assets and liabilities and their respective income tax bases and for operating losses and tax credit carry forwards. A valuation allowance is provided for the portion of deferred tax assets that is more likely than not to be unrealized. Deferred tax assets and liabilities are measured using the enacted tax rates and laws.

Government Grants

We account for government grants by recognizing the benefit of the grant as qualifying expenditures are incurred provided that there is reasonable assurance that we have complied with all conditions under the terms of the grant and that the amount requested for reimbursement will be received. The government grant reduces the research and development, or R&D, expenses to which it relates on our statement of profit and loss.

Research and Development Costs

Research and development costs are expensed as incurred, net of related refundable investment tax credits, with the exception of non-refundable advance payments for goods or services to be used in future research and development, which are capitalized in accordance

with ASC 730, “Research and Development” and included within Prepaid Expenses or Other Assets depending on when the assets will be utilized.

Clinical trial expenses are a component of research and development costs. These expenses include fees paid to contract research organizations and investigators and other service providers, which conduct certain product development activities on our behalf. We use an accrual basis of accounting, based upon estimates of the amount of service completed. In the event payments differ from the amount of service completed, prepaid expense or accrued liabilities amounts are adjusted on the balance sheet. These expenses are based on estimates of the work performed under service agreements, milestones achieved, patient enrollment and experience with similar contracts. We monitor each of these factors to the extent possible and adjust estimates accordingly.

Stock-Based Compensation

Under the fair value recognition provisions of the ASC 718, “Stock Compensation,” we use the modified prospective method with respect to options granted to employees and directors. The expense is amortized on a straight-line basis over the graded vesting period.

Restricted Stock Unit Awards

We grant restricted stock unit awards that generally vest and are expensed over a four-year period. We also granted restricted stock unit awards that vest in conjunction with certain performance conditions to certain executive officers and key employees. At each reporting date, we evaluate whether achievement of the performance conditions is probable. Compensation expense is recorded over the appropriate service period based upon our assessment of accomplishing each performance provision or the occurrence of other events that may have caused the awards to accelerate and vest.

Segment Information

We follow the requirements of ASC 280, “Segment Reporting.” Operating segments are identified as components of an enterprise about which separate discreet financial information is available for evaluation by our Chief Executive Officer, the chief operating decision-maker, or CODM. The CODM assesses performance based on consolidated net income that is also reported on the Consolidated Statements of Loss and Comprehensive Loss as Net Loss.

We view our operations and manage our business as one operating segment, dedicated to the development and commercialization of cytisinicline for nicotine dependence, with operations located in Canada, the United States and the U.K .

Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss). Other comprehensive income (loss) consists of unrealized gains and losses on our available-for-sale marketable securities. We report the components of comprehensive loss in the statement of stockholders’ equity.

Loss per Common Share

Basic loss per common share is computed using the weighted average number of common shares outstanding during the period. Diluted loss per common share is computed in accordance with the treasury stock method. The effect of potentially issuable common shares from outstanding stock options, restricted stock unit awards and warrants are anti-dilutive for all periods presented.

Warrants

We account for warrants pursuant to the authoritative guidance on accounting for derivative financial instruments indexed to, and potentially settled in, a company’s own stock, on the understanding that in compliance with applicable securities laws, the warrants require the issuance of registered securities upon exercise and therefore do not sufficiently preclude an implied right to net cash settlement. We have warrants classified as equity and these are not reassessed for their fair value at the end of each reporting period. Warrants classified as equity are initially measured at their fair value and recognized as part of stockholders’ equity. Determining the appropriate fair-value model and calculating the fair value of registered warrants requires considerable judgment, including estimating stock price volatility and expected warrant life. The computation of expected volatility was based on the historical volatility of comparable companies from a representative peer group selected based on industry and market capitalization. A small change in the

estimates used may have a relatively large change in the estimated valuation. We use the Black-Scholes pricing model to value the warrants.

Reporting Currency and Foreign Currency Translation

Our functional and reporting currency is the U.S. dollar. Revenues and expenses denominated in other than U.S. dollars are translated at average monthly rates.

The functional currency of our foreign subsidiary is the U.S. dollar. For this foreign operation, assets and liabilities denominated in other than U.S. dollars are translated at the period-end rates for monetary assets and liabilities and historical rates for non-monetary assets and liabilities. Revenues and expenses denominated in other than U.S. dollars are translated at average monthly rates. Gains and losses from this translation are recognized in the consolidated statement of loss and comprehensive loss.

Recent Accounting Standards

In December 2023, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures”. This guidance is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to disclosure regarding rate reconciliation and income taxes paid both in the U.S. and in foreign jurisdictions. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024 on a prospective basis, with the option to apply the standard retrospectively. Early adoption is permitted. We are evaluating this standard to determine if adoption will have a material impact on our consolidated financial statements.

In November 2024, the FASB issued ASU2024-03 "Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses". The standard will require additional disclosure of the nature of expenses included in the income statement in response to longstanding requests from investors for more information about an entity’s expenses. The new standard requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. ASU2024-03 applies to all public business entities and is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods within annual reporting periods beginning after December 15, 2027. The requirements will be applied prospectively with the option for retrospective application. Early adoption is permitted. We are evaluating this standard to determine if adoption will have a material impact on our consolidated financial statements.

Recent Adopted Accounting Policies

In November 2023, the FASB issued ASU2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which is intended to provide enhanced segment disclosures. The standard will require disclosures about significant segment expenses and other segment items and identifying the Chief Operating Decision Maker and how they use the reported segment profitability measures to assess segment performance and allocate resources. These enhanced disclosures are required for all entities on an interim and annual basis, even if they have only a single reportable segment. The standard is effective for years beginning after December 15, 2023, and interim periods within annual periods beginning after December 15, 2024 and early adoption is permitted. The adoption of this standard did not have a significant impact on our financial position or results of operations.

XML

Financial Instruments and Risk

12 Months Ended

Dec. 31, 2024

Investments, All Other Investments [Abstract]

Financial Instruments and Risk

3. FINANCIAL INSTRUMENTS AND RISK

Concentration of Cash and Cash Equivalents Risk

We place our cash primarily in commercial checking accounts with various financial institutions. As of December 31, 2024, approximately $0.2 million of our cash and $1.8 million of our cash equivalents (Note 7 – Fair Value Measurements) is held in a single financial institution, SVB, as required by the covenants of our New Debt Agreement (Note 9 – Convertible Debt). Our commercial bank balances exceed federal insurance limits.

We have not experienced any losses in our cash and cash equivalents for the years ended December 31, 2024 and 2023.

Concentration of Credit Risk

For certain of our financial instruments, including cash and cash equivalents, accounts payable, accrued liabilities other, accrued clinical liabilities and accrued compensation carrying values approximate fair value due to their short-term nature. Our cash equivalents are recorded at fair value.

Financial risk is the risk to our results of operations that arises from fluctuations in interest rates and foreign exchange rates and the degree of volatility of these rates as well as credit risk associated with the financial stability of the issuers of the financial instruments. Foreign exchange rate risk arises as a portion of our expenses are denominated in other than U.S. dollars.

We invest our excess cash in accordance with investment guidelines, which limit our credit exposure for securities to any one financial institution or corporation other than securities issued by the U.S. government. We only invest in A (or equivalent) rated securities with maturities of one year or less. These securities generally mature within one year or less and in some cases are not collateralized. At December 31, 2024 the average days to maturity of our portfolio of cash equivalents and marketable securities was 67 days. We do not use derivative instruments to hedge against any of these financial risks.

XML

Government Grant

12 Months Ended

Dec. 31, 2024

Receivables [Abstract]

Government Grant

4. GOVERNMENT GRANT

In July 2021, we announced that we were awarded a grant from the National Institute on Drug Abuse, or NIDA, of the National Institutes of Health, or NIH, to evaluate the use of cytisinicline as a treatment for cessation of nicotine e-cigarette use. This initial grant award, in the amount of $0.3 million, commenced on August 1, 2021, and was utilized to complete critical regulatory and clinical operational activities, such as protocol finalization, clinical trial site identification, drug packaging, and submission of a new Investigational New Drug Application, or IND, to the U.S. Food and Drug Administration, or FDA, for investigating cytisinicline in nicotine e-cigarette users.

In November 2021, we announced that the FDA had completed their review and accepted the IND, to investigate cytisinicline as a cessation treatment in this population. In June 2022, following NIH review of completed milestones, we announced that we were awarded the next grant funding from the NIDA in the amount of approximately $2.5 million, which we have used to conduct the ORCA-V1 Phase 2 clinical trial.

In June 2022, we announced the initiation of the ORCA-V1 Phase 2 clinical trial. ORCA-V1 evaluated the efficacy and safety of 3 mg cytisinicline dosed three times daily compared to placebo in approximately 160 adult e-cigarette users at five clinical trial locations in the United States. Participants were randomized to receive cytisinicline or placebo for 12 weeks in combination with standard cessation behavioral support.

The NIDA/NIH grant for ORCA-V1 was fully utilized as of the first quarter of 2024 and we have received the full amount of approximately $2.5 million in reimbursements from NIDA/NIH. We do not expect to receive any further reimbursements from this grant. For the years ended December 31, 2024 and 2023 we incurred $16,000 and $1.2 million, respectively, in qualifying R&D expenditures under the NIDA/NIH grant which has been recorded as a reduction in R&D expense. From inception of the grant award to December 31, 2024, we have received approximately $2.5 million in reimbursements from NIDA/NIH.

The grant award is expected to cover approximately half of the total ORCA-V1 clinical study costs. The Primary Investigators for the grant are Dr. Cindy Jacobs our Chief Medical Officer, and Dr. Nancy Rigotti, Professor of Medicine at Harvard Medical School and Director, Tobacco Research and Treatment Center, Massachusetts General Hospital.

XML

Intangibles

12 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Intangibles

5. INTANGIBLES

All of our intangible assets are subject to amortization and are amortized using the straight-line method over their estimated useful life.

We acquired license and supply agreements, in relation to cytisinicline, upon the acquisition of Extab Corporation, or Extab, in 2015. The agreements were determined to have a fair value of $3.1 million with an estimated useful life of 14 years.

The components of intangible assets were as follows:

	December 31, 2024							December 31, 2023
	Gross Carrying		Accumulated			Net Carrying		Gross Carrying		Accumulated			Net Carrying
	Value		Amortization			Value		Value		Amortization			Value
License Agreements	$	3,117	$	(2,143	)	$	974	$	3,117	$	(1,920	)	$	1,197

For the years ended December 31, 2024 and 2023 we recorded license agreement amortization expense of $0.2 million and $0.2 million, respectively. The following table outlines the estimated future amortization expense related to intangible assets held as of December 31, 2024:

Year Ending December 31,
2025		223
2026		223
2027		223
2028		223
2029		82
Total	$	974

We evaluate the carrying amount of intangible assets periodically by taking into account events or circumstances that may warrant revised estimates of useful life or that indicate the asset may be impaired. We conducted an impairment analysis for long lived assets, including the license and supply agreements for the active pharmaceutical ingredient cytisinicline, and concluded that there were no indicators of impairment identified as of December 31, 2024.

XML

License Agreements

12 Months Ended

Dec. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

License Agreements

6. LICENSE AGREEMENTS

Sopharma License and Supply Agreements

We are party to a license agreement, or the Sopharma License Agreement, and a supply agreement, or the Sopharma Supply Agreement, with Sopharma, AD, or Sopharma. Pursuant to the Sopharma License Agreement, we were granted access to all available manufacturing, efficacy and safety data related to cytisinicline, as well as a granted patent in several European countries related to new oral dosage forms of cytisinicline providing enhanced stability. Additional rights granted under the Sopharma License Agreement include the exclusive use of, and the right to sublicense, certain cytisinicline trademarks in all territories described in the Sopharma License Agreement. Under the Sopharma License Agreement, we agreed to pay a nonrefundable license fee. In addition, we agreed to make certain royalty payments equal to a mid-single digit percentage of all net sales of cytisinicline products in our territory during the term of the Sopharma License Agreement, including those sold by a third party pursuant to any sublicense which may be granted by us. To date, any amounts paid to Sopharma pursuant to the Sopharma License Agreement have been immaterial.

Share Purchase Agreement

On May 14, 2015, we entered into a Share Purchase Agreement with Sopharma to acquire 75% of the outstanding shares of Extab for $2.0 million in cash and $2.0 million in a deferred payment, contingent on regulatory approval of cytisinicline by the FDA or the European Medicines Agency. The fair value of the contingent consideration on the acquisition date was nil. The contingent consideration liability is measured at fair value in our financial statements,.

As of December 31, 2024, the fair value of the contingent consideration was estimated to be $1.1 million (see Note 2 "Significant Accounting Policies, Sopharma Share Purchase Agreement Contingent Consideration" in the accompanying consolidated Financial Statements). We recognized losses of $0.6 million and $0.5 million for the years ended December 31, 2024 and 2023 respectively.

University of Bristol License Agreement

In July 2016, we entered into a license agreement with the University of Bristol, or the University of Bristol License Agreement. Under the University of Bristol License Agreement, we received exclusive and nonexclusive licenses from the University of Bristol to certain patent and technology rights resulting from research activities into cytisinicline and its derivatives, including a number of patent applications related to novel approaches to cytisinicline binding at the nicotinic receptor level.

In consideration of rights granted by the University of Bristol, we paid a nominal license fee and agreed to pay amounts of up to $3.2 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones

resulting from activities covered by the University of Bristol License Agreement. Additionally, if we successfully commercialize any product candidates subject to the University of Bristol License Agreement, we are responsible for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products.

On January 22, 2018, we and the University of Bristol entered into an amendment to the University of Bristol License Agreement. Pursuant to the amended University of Bristol License Agreement, we received exclusive rights for all human medicinal uses of cytisinicline across all therapeutic categories from the University of Bristol from research activities into cytisinicline and its derivatives. In consideration of rights granted by the amended University of Bristol License Agreement, we agreed to pay an initial amount of $37,500 upon the execution of the amended University of Bristol License Agreement, and additional amounts of up to $1.7 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones resulting from activities covered by the amended University of Bristol License Agreement, in addition to amounts under the original University of Bristol License Agreement of up to $3.2 million in the aggregate, tied to specific financing, development and commercialization milestones. Additionally, if we successfully commercialize any product candidate subject to the amended University of Bristol License Agreement or to the original University of Bristol License Agreement, we will be responsible, as provided in the original University of Bristol License Agreement, for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products. Up to December 31, 2024, we had paid the University of Bristol $125,000 pursuant to the University of Bristol License Agreement.

XML

Fair Value Measurements

12 Months Ended

Dec. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements

7. FAIR VALUE MEASUREMENTS

Assets and liabilities recorded at fair value in the balance sheets are categorized based upon the level of judgment associated with the inputs used to measure their fair value. For certain of our financial instruments including amounts receivable and accounts payable the carrying values approximate fair value due to their short-term nature.

ASC 820 “Fair Value Measurements and Disclosures” specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. In accordance with ASC 820, these inputs are summarized in the three broad levels listed below:

•Level 1 – Quoted prices in active markets for identical securities.

•Level 2 – Other significant inputs that are observable through corroboration with market data (including quoted prices in active markets for similar securities).

•Level 3 – Significant unobservable input that reflects management’s best estimate of what market participants would use in pricing the asset or liability.

As quoted prices in active markets are not readily available for certain financial instruments, we obtain estimates for the fair value of financial instruments through third-party pricing service providers.

In determining the appropriate levels, we performed a detailed analysis of the assets and liabilities that are subject to ASC 820.

We invest our excess cash in accordance with investment guidelines that limit the credit exposure to any one financial institution other than securities issued by the U.S. Government. These securities are not collateralized and mature within one year.

A description of the valuation techniques applied to our financial instruments measured at fair value on a recurring basis follows.

Financial Instruments

The following tables present information about our assets and liabilities that are measured at fair value on a recurring basis, and indicate the fair value hierarchy of the valuation techniques we utilized to determine such fair value (in thousands):

December 31, 2024	Level 1		Level 2		Level 3		Total
Assets
Money market securities (cash equivalents)	$	12,135	$	—	$	—	$	12,135
Restricted cash		20		—		—		20
US government securities		—		9,473		—		9,473
Corporate bonds		—		12,134		—		12,134
Total assets	$	12,155	$	21,607	$	—	$	33,762
Liabilities
Convertible debt	$	—		9,430	$	—	$	9,430
Contingent consideration		—		—		1,149		1,149
Total liabilities	$	—	$	9,430	$	1,149	$	10,579

December 31, 2023	Level 1		Level 2		Level 3		Total
Assets
Money market securities (cash equivalents)	$	14,252	$	—	$	—	$	14,252
Restricted cash		50		—		—		50
Total assets	$	14,302	$	—	$	—	$	14,302
Liabilities
Convertible debt	$	—	$	16,652	$	—	$	16,652
Contingent consideration		—		—		528		528
Total liabilities	$	—	$	16,652	$	528	$	17,180

Money Market Securities

Money market securities are classified within Level 1 of the fair value hierarchy and are valued based on quoted prices in active markets for identical securities.

Cash and cash equivalents (in thousands):

			Gross		Gross
	Amortized		Unrealized		Unrealized		Estimated
December 31, 2024	Cost		Gains		Losses		Fair Value
Money market securities		12,135		—		—		12,135
Total cash and cash equivalents	$	12,135	$	—	$	—	$	12,135
Money market securities (restricted cash)		20		—		—		20
Total restricted cash	$	20	$	—	$	—	$	20

			Gross		Gross
	Amortized		Unrealized		Unrealized		Estimated
December 31, 2023	Cost		Gains		Losses		Fair Value
Money market securities		14,252		—		—		14,252
Total cash and cash equivalents	$	14,252	$	—	$	—	$	14,252
Money market securities (restricted cash)		50		—		—		50
Total restricted cash	$	50	$	—	$	—	$	50

We only invest in A (or equivalent) rated securities. All securities included in cash and cash equivalents had maturities of 90 days or less at the time of purchase.

Corporate and Other Debt Corporate Bonds and Commercial Paper

The fair value of corporate bonds and commercial paper is estimated using recently executed transactions, market price quotations (where observable), bond spreads or credit default swap spreads adjusted for any basis difference between cash and derivative

instruments. The spread data used are for the same maturity as the bond. If the spread data does not reference the issuer, then data that reference a comparable issuer are used. When observable price quotations are not available, fair value is determined based on cash flow models with yield curves, bond or single name credit default swap spreads and recovery rates based on collateral values as significant inputs. Corporate bonds and commercial paper are generally categorized in Level 2 of the fair value hierarchy; in instances where prices, spreads or any of the other aforementioned key inputs are unobservable, they are categorized in Level 3 of the hierarchy.

			Gross		Gross
	Amortized		Unrealized		Unrealized		Estimated
December 31, 2024	Cost		Gains		Losses		Fair Value
US government securities	$	9,461	$	—	$	12	$	9,473
Corporate bonds		12,119		—		15		12,134
Total marketable securities	$	21,580	$	—	$	27	$	21,607

Fair Value of Long-Term Debt

Convertible Debt

The principal amount, carrying value and related estimated fair value of our convertible debt reported in the consolidated balance sheets as of December 31, 2024 and December 31, 2023 was as follows (in thousands). The aggregate fair value of the principal amount of the convertible debt is a Level 2 fair value measurement.

	December 31, 2024						December 31, 2023
	Principal		Carrying		Fair		Principal		Carrying		Fair
	Amount		Value		Value		Amount		Value		Value
2023 SVB Convertible Debt	$	—	$	—	$	—	$	15,000	$	16,662	$	16,652

	December 31, 2024						December 31, 2023
	Principal		Carrying		Fair		Principal		Carrying		Fair
	Amount		Value		Value		Amount		Value		Value
2024 SVB Convertible Debt	$	10,000	$	9,837	$	9,430	$	—	$	—	$	—

Fair Value of Sopharma Share Purchase Agreement Contingent Consideration

We determine the fair value of the contingent consideration using a probability based discounted cash flow model whereby we forecast the timing of the cash flow of the related future payment based on cytisinicline's current clinical development phase and the remaining requirements for regulatory approval. We then discount the expected payment amount to calculate the present value and then apply a probability of success in obtaining regulatory approval as of the valuation date. We evaluate the underlying projection used in determining the fair value each period and make updates as necessary.

The significant assumptions we use to value the contingent consideration are the forecasted timing of the future payment, the risk-adjusted discount rate and the probability of success which are all considered significant unobservable inputs, and as such, the liability is classified as a Level 3 measurement. The risk-adjusted discount rate is adjusted for credit risk.

An increase in the discount rate and decrease in the probability of success will result in a decrease in the fair value of the contingent consideration. Conversely, a decrease in the discount rate and increase in the probability of success will result in an increase in the fair value of the contingent consideration. At December 31, 2024 the risk adjusted discount rate was 30.8% and the probability of success was 90.6%. Adjustments to the fair value of the contingent liabilities, other than payments, are recorded as a gain or loss in the Consolidated Statements of Loss and Comprehensive Loss.

	Opening
	Balance at		Change in		Balance at
(in thousands)	December 31, 2023		Fair Value		December 31, 2024
Contingent consideration	$	528	$	621	$	1,149

XML

Property and Equipment

12 Months Ended

Dec. 31, 2024

Property, Plant and Equipment [Abstract]

Property and Equipment

8. PROPERTY AND EQUIPMENT

Property and equipment consisted of the following (in thousands):

			Accumulated		Net Book
	Cost		Depreciation		Value
December 31, 2024
Computer equipment	$	114	$	108	$	6
Furniture and fixtures		28		28		—
Leasehold improvements		25		25		—
Computer software		77		75		2
Equipment under capital lease		12		12		—
Total property and equipment	$	256	$	248	$	8

XML

Convertible Debt

12 Months Ended

Dec. 31, 2024

Debt Disclosure [Abstract]

Convertible Debt

9. CONVERTIBLE DEBT

On December 22, 2021, we entered into a $25.0 million contingent convertible debt agreement, or Original Debt Agreement, with SVB, and SVB Innovation Credit Fund VIII, L.P., or, together with SVB, the Lenders. As part of the Original Debt Agreement, the Lenders funded $15.0 million in the form of convertible indebtedness, or Convertible Debt, at closing. On April 26, 2022, we entered into (i) a loan and security agreement, or Loan Agreement, with SVB for the remaining $10.0 million remaining in the Original Debt Agreement, pursuant to which SVB provided a commitment to extend term loans having an aggregate original principal amount of up to $10.0 million, or Term Loans, and (ii) a first amendment to the Original Debt Agreement, or the Amendment. The availability of Term Loans under the Loan Agreement expired on April 30, 2023, with no amounts drawn under the facility.

On May 15, 2023, we entered into a contingent convertible debt agreement, or Debt Agreement, with the Lenders, pursuant to which the Lenders provided term loans having an aggregate original principal amount of $16.6 million, or the Convertible Term Loan. The Convertible Debt under the Original Debt Agreement was refinanced as the Convertible Term Loan pursuant to the Debt Agreement. Our obligations under the Loan Agreement, Original Debt Agreement, Amendment and Convertible Debt were satisfied in full and the Loan Agreement, Original Debt Agreement, Amendment and Convertible Debt were terminated in connection with the entrance into the Debt Agreement and Convertible Term Loan.

On July 25, 2024, we entered into a contingent convertible debt agreement, or New Debt Agreement, with SVB, a division of FCB, in its capacity as administrative agent and collateral agent, and FCB, as a lender, or Lender, pursuant to which the Lender provided term loans having an aggregate original principal amount of $10.0 million, with additional term loans of up to $10.0 million available upon the occurrence of certain events as provided for in the New Debt Agreement and further described below, or New Convertible Term Loan. Our obligations under the New Debt Agreement are secured by substantially all of our assets, other than intellectual property.

The New Debt Agreement refinanced the Debt Agreement. Our obligations under the Debt Agreement and Convertible Term Loan were satisfied in full and the Debt Agreement and Convertible Term Loan were terminated in connection with the entrance into the New Debt Agreement and New Convertible Term Loan. The New Convertible Term Loan matures on December 1, 2027, which maturity date may be extended to June 1, 2028 upon the occurrence of certain events as provided for in the New Debt Agreement. The first tranche of the New Convertible Term Loan, which was advanced on July 25, 2024, has an aggregate original principal amount of $10.0 million. The Lender will further make available to us, upon our request: (a) on or prior to October 31, 2025, a second tranche of the New Convertible Term Loan having an aggregate principal amount of $5.0 million in the event that we receive written notice that the FDA has accepted for filing our NDA with respect to cytisinicline for a smoking cessation indication, or the Additional Term Loan Event I, and (b) on or prior to December 31, 2025, a third tranche of the New Convertible Term Loan having an aggregate principal amount of $5.0 million, subject to the Lender’s sole discretion. Interest is calculated on the outstanding principal amount of the New Convertible Term Loan at a floating rate per annum equal to the greater of (i) 7.0% and (ii) the prime rate minus 1.0%, which interest shall be payable in cash monthly in arrears and shall be payable on the earlier to occur of (x) the first day of the first month following any extension of credit by the Lender for our credit, (y) the date of any prepayment pursuant to the New Debt Agreement, or (z) the maturity date. The New Convertible Term Loan will be “interest-only” until December 31, 2025, subject to extension as provided for in the New Debt Agreement. The “interest-only” period may be extended to June 30, 2026, if (i) prior to December 31, 2025, we have received at least $40,000,000 in net cash proceeds from the issuance equity interests and (ii) the conditions of Additional Term Loan Event I have been satisfied.

Subject to certain terms and conditions, the conversion feature grants the Lender or, pursuant to an assignment, any designee thereof, or Conversion Right Holders, (as defined in the New Debt Agreement), the right to convert part or all of the outstanding aggregate original principal amount of the New Convertible Term Loan, plus accrued and unpaid interest, into shares of our common stock at a conversion price equal to $7.00, subject to customary adjustment provisions. The Conversion Right Holders have the further right to

convert part or all of the outstanding principal amount of the second and third tranches of the New Convertible Term Loan, plus accrued and unpaid interest, into shares of our common stock at a conversion price equal to the greater of (i) $4.854, subject to customary adjustment provisions, and (ii) the lower of (a) 150% of the average of the closing sale price of our common stock during the 10 trading days preceding the effective date of such tranche and (b) 150% of the closing sale price of our common stock on the trading day immediately preceding the effective date of such tranche.

The conversion rights may be exercised at each Conversion Right Holder's option any time prior to repayment of the New Convertible Term Loan; provided, however, that the Conversion Right Holders will not be permitted to convert part or all of the outstanding aggregate original principal amount of the New Convertible Term Loan without the agreement of the relevant Conversion Right Holder and us if the sum of the amount of debt to be converted; and the aggregate amount of debt previously converted pursuant to any such voluntary conversion, divided by the aggregate of all debt that is then outstanding or that has been repaid other than by conversion exceeds 50%.

Additionally, the outstanding principal of the New Convertible Term Loan, plus accrued and unpaid interest, will automatically be converted into shares of our common stock at the applicable conversion price on such date if any, when the closing price per share of our common stock has been equal to or greater than (a) in the case of the outstanding aggregate original principal amount of the New Convertible Term Loan, plus accrued and unpaid interest, $24.00 or, (b) in the case of the outstanding principal amount of the second and third tranches of the New Convertible Term Loan, plus accrued and unpaid interest, three times the applicable conversion price, in each case for the thirty consecutive trading days prior to such date, and the Liquidity Conditions (as defined in the New Debt Agreement) have been satisfied.

The New Convertible Term Loan may be repaid at our election and upon notice to the Agent (as defined in the New Debt Agreement) by paying the Lender an amount equal to (i) a prepayment fee equal to (a) 3.0% of the aggregate outstanding principal balance if such prepayment occurs on or prior to the first anniversary of the New Convertible Term Loan, (b) 2.0% of the aggregate outstanding principal balance if such prepayment occurs after the first anniversary, but on or prior to the second anniversary, of the New Convertible Term Loan or (c) 1.0% of the aggregate outstanding principal balance if such prepayment occurs after the second anniversary of the New Convertible Term Loan and before the maturity date; (ii) 4.0% of the original aggregate principal amount of the New Convertible Term Loan and (iii) all other sums due and payable under the New Convertible Term Loan.

The New Debt Agreement contains customary affirmative and restrictive covenants, including covenants regarding the incurrence of additional indebtedness or liens, investments, transactions with affiliates, delivery of financial statements, payment of taxes, maintenance of insurance, dispositions of property, mergers or acquisitions, among other customary covenants. We are also restricted from paying dividends or making other distributions or payments on our capital stock, subject to limited exceptions. The New Debt Agreement also includes customary representations and warranties, events of default and termination provisions. The Lender may not engage in any short sales of, or other hedging transactions in, our common stock while any amounts are outstanding under the New Debt Agreement.

In connection with the New Debt Agreement, we entered into a Registration Rights Agreement, or RRA, with the Lender, pursuant to which we registered for resale shares of our common stock issuable to the Conversion Right Holders upon the conversion of outstanding debt under the New Debt Agreement. Our obligations under the RRA will terminate with respect to a holder of applicable registrable securities if, as of the date we would be required to provide written notice of such registration, (x) the aggregate number of registrable securities then issued and issuable to such holder and to such holder’s affiliates, together with all other shares then held beneficially and/or of record by such holder and its affiliates, does not exceed 7.0% of our then-total shares issued and outstanding (calculated including all such registrable securities and other shares), or (y) we and such holder mutually reasonably agree that all registrable securities then issued and issuable to such holder and its affiliates may then be sold by such holder without the requirement to be in compliance with Rule 144 promulgated under the Securities Act, or Rule 144, and otherwise without restriction or limitation pursuant to Rule 144.

Under ASU 2020-06 the embedded conversion feature was not required to be bifurcated and recognized separately, as a result the convertible debt including the conversion feature has been recognized as a single unit of debt.

The debt refinancing under the New Debt Agreement was recognized as an extinguishment of debt under ASC 470-50, and the difference between the reacquisition price and carrying value was recognized on the Consolidated Statement of Loss as a loss on extinguishment of debt. Associated third-party issuance costs have been recognized against the single unit of debt and will be amortized into interest expense over the term of the loan.

As of December 31, 2024, the Convertible Term Loan and New Convertible Term Loan balances were comprised of the following:

	Year Ended
	December 31,
	2024		2023
Convertible Term Loan Information
Principal	$	—	$	15,000
Transaction Costs		—		(5	)
Accrued paid-in-kind interest		—		2,311
Discount on modification of debt		—		(1,074	)
Accretion of discount on modification of debt		—		430
		—		16,662

	Year Ended
	December 31,
	2024			2023
New Convertible Term Loan Information
Principal	$	10,000		$	—
Transaction costs		(186	)		—
Amortization of transaction costs		23			—
		9,837			—

XML

Income Tax

12 Months Ended

Dec. 31, 2024

Income Tax Disclosure [Abstract]

Income Tax

10. INCOME TAX

[a] We are a Delaware incorporated company subject to blended U.S. Federal and state statutory rates for December 31, 2024, 2023 and 2022 of 21%. For the purposes of estimating the tax rate in effect at the time that deferred tax assets and liabilities are expected to reverse, management uses the furthest out available future tax rate in the applicable jurisdictions.

U.S. and foreign components of income (loss) before income taxes were as follows (in thousands):

(In thousands)	2024			2023			2022
U.S.	$	(39,532	)	$	(28,982	)	$	(41,660	)
Foreign		(295	)		(833	)		(690	)
Income (loss) before income taxes	$	(39,827	)	$	(29,815	)	$	(42,350	)

Income tax expense/(recovery) consisted of the following (in thousands):

(In thousands)	2024			2023			2022
Income tax recovery at statutory rates (at a rate of 21% for all years presented)	$	(8,364	)	$	(6,261	)	$	(8,894	)
Expenses not deducted for tax purposes		906			477			299
Effect of tax rate changes on deferred tax assets and liabilities		—			(169	)		(18	)
Rate differential on foreign earnings		(14	)		(36	)		(26	)
Research and development tax credits		(1,085	)		(883	)		(1,154	)
Change in valuation allowance		8,669			7,686			10,464
Reassessment of previously recognized net operating losses		—			—			9
Adjustment to prior year research and development tax credits		—			(760	)		(731	)
Other		(112	)		(54	)		51
Income tax expense/(recovery)	$	—		$	—		$	—

[b] The tax effects of the temporary differences and carryforwards that give rise to deferred tax assets and liabilities are as follows (in thousands):

	2024			2023
Deferred tax assets
Tax basis in excess of book value of assets	$	899		$	899
Net operating loss carryforwards		54,553			48,867
Research and development deductions and credits		11,800			10,716
Stock options		1,535			1,134
Capitalized R&D expenses		12,840			11,528
Other		533			434
Total deferred tax assets		82,160			73,578
Valuation allowance		(81,830	)		(73,232	)
Net deferred tax assets		330			346
Deferred tax liabilities
Right-of-use asset		(122	)		(91	)
Other		(208	)		(255	)
Total deferred tax liabilities		(330	)		(346	)
Net deferred tax liabilities		—			—

A valuation allowance is recorded when it is more likely than not that all or some portion of the deferred tax assets, or DTAs, will not be realized. Management assesses the need for a valuation allowance against the deferred tax assets when considering both positive and negative evidence related to whether it is more likely than not that the deferred tax assets will be realized. In evaluating the ability to recover the deferred tax assets within the jurisdiction from which they arise, all available positive and negative evidence is considered, including scheduled reversals of deferred tax liabilities, projected future growth, tax-planning strategies, and results of recent operations.

Due to the uncertainty surrounding the realization of deductible tax attributes in future tax returns, we have recorded a valuation allowance for deferred tax assets of $81.8 million to reduce the DTAs to zero as of December 31, 2024. The valuation allowance increased by approximately $8.6 million during the year ended December 31, 2024. The amount of the DTA considered realizable, however, could be adjusted if estimates of future taxable income during the carryforward period increased or if objective negative evidence in the form of cumulative losses is no longer present and additional weight is given to subjective evidence such as our projections for growth.

We have total net operating loss carryforwards for federal tax purposes of approximately $116.8 million ($90.2 million—2023) as of December 31, 2024, some of which will begin to expire in 2029. Approximately $106.7 million of the federal net operating losses will carryforward indefinitely. Federal net operating losses generated after January 1, 2018 were originally available to offset 80% of taxable income for any given future tax year and will be carried forward indefinitely. We have research and development tax credit carryforwards of approximately $5.1 million ($4.0 million—2023) as of December 31, 2024, which will begin to expire in 2037. The operating loss carryforwards and research and development tax credits may be limited due to a change in control in our ownership as defined by the Internal Revenue Code, or IRC, Section 382. Sections 382 and 383 of the IRC limit the utilization of tax attribute carryforwards that arise prior to certain cumulative changes in a corporation's ownership. Our attribute carryforwards may be limited due to a change of control in ownership as defined by Section 382. Due to the existence of the valuation allowance, future changes in our unrecognized tax benefits will not impact our effective tax rate. Any future changes in our ownership may limit the use of such carryforward benefits.

Our effective income tax rate for the periods presented differ from the statutory rate of 21% primarily due to current year net losses and the full valuation allowance on the U.S. deferred tax assets. We file income tax returns in the United States, Canada, and the United Kingdom, or U.K. At December 31, 2024, we have Canadian non-capital loss carryforwards of $107.3 million ($107.0 million—2023) and research tax credits of $2.7 million ($2.7 million—2023), both of which will begin to expire in 2025. In addition, we have unclaimed tax deductions of approximately $15.8 million related to scientific research and experimental development expenditures available to carry forward indefinitely to reduce Canadian taxable income of future years. The U.K. net operating loss carryforwards of $4.2 million (2023—$4.0 million) will carry forward indefinitely. As of December 31, 2024 and 2023, there are no tax penalties or accrued interest recorded in the financial statements.

[c] A reconciliation of the unrecognized tax benefits of uncertain tax positions for the year ended December 31, 2024 is as follows (in thousands):

	Year ended
	December 31,
	2024		2023		2022
Gross unrecognzed tax benefits at January 1	$	761	$	761	$	761
Additions (reductions) from tax positions taken in prior years		—		—		—
Additions (reductions) from tax positions taken in the current year		—		—		—
Tax settlements		—		—		—
Gross unrecognzed tax benefits at December 31	$	761	$	761	$	761

As of December 31, 2024, unrecognized benefits of approximately $0.8 million, if recognized, would affect our effective tax rate, and would reduce our deferred tax assets. Due to the existence of the valuation allowance, future changes in unrecognized tax benefits will have no impact on our effective tax rate. We do not anticipate that there will be a substantial change in unrecognized tax benefits within the next 12 months.

Our accounting policy is to treat interest and penalties relating to unrecognized tax benefits as a component of income taxes. As of December 31, 2024 and December 31, 2023 we had no accrued interest and penalties related to income taxes.

We are subject to taxes in Canada, the U.K. and the United States until the applicable statute of limitations expires. However, in Canada and the United States, all tax years remain subject to examination due to the carryforward of unutilized NOLs and tax credits.

Tax audits by their very nature are often complex and can require several years to complete. To our knowledge, we are not currently under examination by any taxing authorities.

Tax	Years open to
Jurisdiction	examination
Canada	2020 to 2024
United Kingdom	2018 to 2024
US	2021 to 2024

XML

Common Stock

12 Months Ended

Dec. 31, 2024

Equity [Abstract]

Common Stock

11. COMMON STOCK

[a] Authorized

150,000,000 authorized common voting shares, par value of $0.001, and 5,000,000 preferred shares, par value of $0.001.

[b] Issued and outstanding shares

At-the-Market Sales Agreement

On December 21, 2021, we entered into an At-the-Market Offering Sales Agreement, or ATM, with Virtu Americas, LLC, as sales agent. The ATM was terminated on February 29, 2024, and no further sales of our common stock will be made pursuant to the ATM.

Through the date of termination of the ATM, we offered and sold an aggregate of 200,000 shares of our common stock. These aggregate sales resulted in gross proceeds to us of approximately $1.5 million. During the year ended December 31, 2024, we did not sell any shares of our common stock pursuant to the ATM.

November 2022 Private Placement

In November 2022, we entered into subscription agreements with certain accredited investors pursuant to which we sold to the purchasers in a private placement transaction approximately 4,093,141 units at a purchase price of $4.625 per unit, with each unit consisting of two shares of common stock and a common stock purchase warrant to purchase one share of common stock, or the November 2022 Warrants.

The November 2022 Warrants are exercisable at a price per share of common stock of $4.50, subject to adjustment. The November 2022 Warrants are exercisable beginning on the six-month anniversary of the initial closing date of the private placement offering, May 18, 2023, or the Initial Exercise Date, and will expire on the seven year anniversary of the initial closing date of the private placement offering, or November 18, 2029. The November 2022 Warrants cannot be exercised by a warrant holder if, after giving effect thereto, such warrant holder would beneficially own more than 19.99% of our outstanding common stock. Additionally, subject to certain exceptions, if, after the Initial Exercise Date, (i) the volume weighted average price of our common stock for each of 30 consecutive trading days, or the November 2022 Measurement Period, which November 2022 Measurement Period commenced on November 18, 2022, exceeds 300% of the exercise price (subject to adjustments for stock splits, recapitalizations, stock dividends and similar transactions), (ii) the average daily trading volume for such November 2022 Measurement Period exceeds $500,000 per trading day and (iii) certain other equity conditions are met, and subject to a beneficial ownership limitation, then we may call for cancellation of all or any portion of the November 2022 Warrants then outstanding.

We received approximately $17.9 million in net proceeds from the private placement after deducting placement agent expenses and commissions and offering expenses.

May 2023 Registered Direct Offering

In May 2023, we entered into a securities purchase agreement with certain purchasers, pursuant to which we sold 3,000,000 shares of common stock at a price of $5.50 per share in a registered direct offering. The offering of the shares was made pursuant to our shelf registration statement on Form S-3, including the prospectus dated January 5, 2022 contained therein, and the prospectus supplement dated May 25, 2023.

The registered direct offering raised total gross proceeds of approximately $16.5 million, and after deducting approximately $1.2 million in placement agent fees and offering expenses, we received net proceeds of approximately $15.3 million.

February 2024 Registered Direct Offering and Concurrent Private Placement

In February 2024, we entered into a securities purchase agreement with certain purchasers, pursuant to which we sold 13,086,151 shares of common stock at a price of $4.585 per share in a registered direct offering. The offering of the shares was made pursuant to our shelf registration statement on Form S-3, including the prospectus dated January 5, 2022 contained therein, and the prospectus supplement dated February 28, 2024.

In a concurrent private placement, we issued unregistered warrants to purchase up to 13,086,151 shares of common stock at an exercise price of $4.906 per share (provided, however, that the purchaser may elect to exercise the warrants for pre-funded warrants in lieu of shares of common stock at an exercise price of $4.906, minus $0.001, the exercise price of each pre-funded warrant). These warrants are immediately exercisable for shares of common stock or pre-funded warrants in lieu thereof, and will expire on the earlier of (i) three and one-half years following the date of issuance and (ii) 30 days following our public disclosure of the acceptance of an NDA for cytisinicline by the FDA in a Day 74 Letter or equivalent correspondence. The shares of common stock issuable upon exercise of the warrants (or pre-funded warrants, as applicable) were subsequently registered pursuant to our registration statement on Form S-3, which was declared effective on May 6, 2024.

The registered direct offering raised total gross proceeds of approximately $60.0 million, and after deducting approximately $3.9 million in placement agent fees and offering expenses, we received net proceeds of approximately $56.1 million.

Jefferies Open Market Sale Agreement

On September 27, 2024, we entered into an Open Market Sale Agreement, or Sale Agreement, with Jefferies LLC, or Jefferies, as sales agent, to establish an at-the-market offering program through which we may sell shares of our common stock with an aggregate offering price of up to $50.0 million. During the year ended December 31, 2024, we did not sell any shares under the Sale Agreement. As of December 31, 2024, we had $50.0 million available under the Sale Agreement.

Equity Award Issuances and Settlements

During the year ended December 31, 2024, we did not issue any shares of common stock to satisfy stock option exercises and we issued 113,125 shares of common stock to satisfy restricted stock unit settlements. During the year ended December 31, 2023 we did not issue any shares of common to satisfy stock option exercises and we issued 139,750 shares of common stock to satisfy restricted stock unit settlements.

[c] Stock options

2024 Equity Inducement Plan

As of December 31, 2024, we had reserved, pursuant to the 2024 Equity Inducement Plan, 1,250,000 shares of common stock for issuance upon exercise of stock options and settlement of restricted stock units by employees, of which 181,000 shares were reserved for options currently outstanding, 168,000 for restricted stock units currently outstanding and 901,000 shares were available for future equity grants.

Under the 2024 Equity Inducement Plan, we may grant options to purchase shares of our common stock or restricted stock units as a material inducement to new employees for entering into employment with us. The exercise price of the options is determined by our Board but will be at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board. The expiry date for each option is set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2024 Equity Inducement Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control.

2023 Non-Employee Director Equity Incentive Plan

As of December 31, 2024, we had reserved, pursuant to the 2023 Non-Employee Director Equity Incentive Plan, or the 2023 Non-Employee Director Plan, 300,000 shares of common stock for issuance upon exercise of stock options by non-employee directors, of which 290,250 shares were reserved for options currently outstanding and 9,750 shares were available for future equity grants.

Under the 2023 Non-Employee Director Plan, we may grant options to purchase shares of our common stock or restricted stock units to our non-employee directors. The exercise price of the options is determined by our Board but will be at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board, typically over

one to three years. The expiry date for each option is set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2023 Non-Employee Director Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control.

2018 Equity Incentive Plan

As of December 31, 2024, we had reserved, pursuant to the 2018 Equity Incentive Plan, or the 2018 Plan, 2,667,416 common shares for issuance upon exercise of stock options and settlement of restricted stock units by employees, directors, officers and consultants of ours, of which 1,519,905 were reserved for options currently outstanding, 1,115,750 for restricted stock units currently outstanding, and 31,761 were available for future equity grants.

Under the 2018 Plan, we may grant options to purchase common shares or restricted stock units to our employees, directors, officers and consultants. The exercise price of the options is determined by our board of directors, or Board, but will be at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board, typically over three to four years for options issued to employees and consultants, and over one to three years for members of our Board. The expiry date for each option is set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2018 Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control. The terms for accelerated vesting, in the event of a change in control, is determined at our discretion and defined under the employment agreements for our officers and certain of our employees.

New Employee Inducement Grants

We grant stock options as a material inducement to new employees for entering into employment agreements with us in accordance with Nasdaq Listing Rule 5635(c)(4). The stock options approved under the inducement grant were issued pursuant to a stock option agreement on terms substantially similar to our 2018 Equity Incentive Plan. The exercise price of the options is determined by our board of directors but will be at least equal to the fair value of the common shares at the grant date. The options vest in accordance with terms as determined by our board of directors. The expiry date for each option is set by our board of directors with a maximum expiry date of ten years from the date of grant. For the year ended December 31, 2024 we did not grant stock options to new employees under this plan. As of December 31, 2024, 135,000 stock options granted as new employee inducement grants were outstanding.

2017 Equity Incentive Plan

As of December 31, 2024, we had reserved, pursuant to the 2017 Equity Incentive Plan, or the 2017 Plan, 13,156 common shares for issuance upon exercise of stock options, currently outstanding, by employees, directors and officers of ours. Upon the effectiveness of our 2018 Plan, we ceased granting equity awards under our 2017 Plan.

Under the 2017 Plan, we granted options to purchase shares of common stock or restricted stock units to our employees, directors, officers and consultants. The exercise price of the options was determined by our Board but was at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board, typically over three to four years for options issued to employees and consultants, and over one to three years for members of our Board. The expiry date for each option was set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2017 Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control. The terms for accelerated vesting, in the event of a change in control, is determined at our discretion and defined under the employment agreements for our officers and certain of our employees.

2010 Performance Incentive Plan

As of December 31, 2024, we had reserved, pursuant to the 2010 Performance Incentive Plan, or the 2010 Plan, 103 common shares for issuance upon exercise of stock options, currently outstanding, by employees, directors, officers and consultants of ours.

Under the 2010 Plan we granted options to purchase shares of common stock and restricted stock units to our employees, directors, officers and consultants. The exercise price of the options was determined by our board of directors and was at least equal to the fair value of the shares of common stock at the grant date. The options vest in accordance with terms as determined by our Board, typically over three to four years for options issued to employees and consultants, and over one to three years for members of our Board. The expiry date for each option is set by our Board with a maximum expiry date of ten years from the date of grant. In addition, the 2010 Plan allows for accelerated vesting of outstanding equity awards in the event of a change in control. The terms for accelerated vesting, in the event of a change in control, is determined at our discretion and defined under the employment agreements for our officers and certain of our employees.

ASC 718 Compensation – Stock Compensation

We recognize expense related to the fair value of our stock-based compensation awards using the provisions of ASC 718. We use the Black-Scholes option pricing model as the most appropriate fair value method for our stock options and recognize compensation expense for stock options on a straight-line basis over the requisite service period. In valuing our stock options using the Black-Scholes option pricing model, we make assumptions about risk-free interest rates, dividend yields, volatility and weighted average expected lives, including estimated forfeiture rates of the options.

The expected life was calculated based on the simplified method as permitted by the SEC’s Staff Accounting Bulletin 110, Share-Based Payment. We consider the use of the simplified method appropriate because of the lack of sufficient historical exercise data following the 2017 Merger Agreement between Achieve Life Sciences, Inc. and OncoGenex Pharmaceuticals. The computation of expected volatility was calculated based on the historical volatility of the shares of our common stock. The risk-free interest rate is based on a U.S. Treasury instrument whose term is consistent with the expected life of the stock options. In addition to the assumptions above, as required under ASC 718, management made an estimate of expected forfeitures and is recognizing compensation costs only for those equity awards expected to vest. Forfeiture rates are estimated using historical actual forfeiture rates. These rates are adjusted on a quarterly basis and any change in compensation expense is recognized in the period of the change. We have never paid or declared cash dividends on our common stock and do not expect to pay cash dividends in the foreseeable future.

The estimated fair value of stock options granted in the respective periods was determined using the Black-Scholes option pricing model using the following weighted average assumptions:

	2024			2023
Risk-free interest rates		4.00	%		3.60	%
Expected dividend yield		0	%		0	%
Expected life	5.74 years			5.75 years
Expected volatility		87.40	%		115.19	%
Forfeiture rate		0	%		0	%

The weighted average fair value of stock options granted during the year ended December 31, 2024 was $3.35.

The results for the periods set forth below included stock-based compensation expense in the following expense categories of the consolidated statements of loss (in thousands):

	Year ended
	December 31,
	2024		2023
Research and development	$	1,736	$	1,122
General and administrative		3,589		2,317
Total stock-based compensation	$	5,325	$	3,439

Stock option transactions and the number of stock options outstanding are summarized below:

	Number of			Weighted
	Optioned			Average
	Common			Exercise
	Shares			Price
Balance, January 1, 2024		1,461,980		$	12.12
Granted		677,500			4.54
Expired		(66	)		17,565.33
Balance, December 31, 2024		2,139,414		$	9.18

The following table summarizes information about stock options outstanding at December 31, 2024 regarding the number of ordinary shares issuable upon: (1) outstanding options and (2) vested options.

(1) Number of common shares issuable upon exercise of outstanding options:

					Weighted-
					Average
					Remaining
			Weighted-		Contractual
			Average		Life
Exercise Prices	Number of Options		Exercise Price		(in years)
$4.52 - $4.52		211,000	$	4.52		9.93
$4.53 - $4.54		25,000		4.53		8.20
$4.55 - $4.72		466,500		4.55		9.06
$4.73 - $4.99		409,750		4.90		8.07
$5.00 - $5.99		156,750		5.88		8.17
$6.00 - $7.89		167,200		6.68		7.52
$7.90 - $8.43		226,250		8.26		7.01
$8.44 - $11.65		189,630		10.61		5.57
$11.66 - $20.74		238,400		13.07		6.07
$20.75 - $4,158.00		48,934		110.49		3.71
		2,139,414	$	9.18		7.78

(2) Number common shares issuable upon exercise of vested options:

					Weighted-
					Average
					Remaining
			Weighted-		Contractual
			Average		Life
Exercise Prices	Number of Options		Exercise Price		(in years)
$4.52 - $4.52		—	$	—		—
$4.53 - $4.54		10,937		4.53		8.20
$4.55 - $4.72		50,000		4.55		9.06
$4.73 - $4.99		295,499		4.90		8.07
$5.00 - $5.99		92,064		5.88		8.16
$6.00 - $7.89		148,734		6.62		7.59
$7.90 - $8.43		221,353		8.26		7.01
$8.44 - $11.65		189,630		10.61		5.57
$11.66 - $20.74		234,802		13.07		6.07
$20.75 - $4,158.00		48,934		110.49		3.71
		1,291,953	$	12.05		6.98

As at December 31, 2024, and December 31, 2023, the total unrecognized compensation expense related to stock options granted was $2.4 million and $3.4 million, respectively, each of which is expected to be recognized into expense over a period of approximately 1.99 years.

The aggregate intrinsic value of options exercised was calculated as the difference between the exercise price of the stock options and the fair value of the underlying common stock as of the date of exercise. No options were exercised for the years ended December 31, 2024, 2023 and 2022. At December 31, 2024, the aggregate intrinsic value of the outstanding options was zero and the aggregate intrinsic value of the exercisable options was zero.

[d] Restricted Stock Unit Awards

We grant restricted stock unit awards that generally vest and are expensed over a four-year period. We also grant restricted stock unit awards that vest in conjunction with certain performance conditions to certain executive officers and key employees. At each reporting date, we are required to evaluate whether achievement of the performance conditions is probable. Compensation expense is recorded over the appropriate service period based upon our assessment of accomplishing each performance provision. For the years ended December 31, 2024, 2023 and 2022, $2.0 million, $0.9 million and $1.1 million, respectively, of stock based compensation expense was recognized related to these awards.

The following table summarizes our restricted stock unit award activity during the year ended December 31, 2024:

				Weighted
	Number			Average
	of			Grant Date
	Shares			Fair Value
Balance, January 1, 2024		507,875		$	5.65
Granted		889,000			4.54
Released		(113,125	)		8.26
Balance, December 31, 2024		1,283,750		$	4.65

As of December 31, 2024, we had approximately $2.3 million in total unrecognized compensation expense related to our restricted stock unit awards which is to be recognized over a weighted-average period of approximately 0.75 years.

[e] Employee Stock Purchase Plan

Our board of directors and stockholders approved the 2017 Employee Stock Purchase Plan, or ESPP, in August 2017. Contributions are made by eligible employees, subject to certain limits defined in the ESPP. The number of shares available for future purchases under the ESPP is 507,627 shares. All shares purchased under the ESPP are new share issuances. For the year ended December 31, 2024 we recorded a compensation expense of $0.2 million related to the current ESPP offering period. For the year ended December 31, 2023, no compensation expense was recognized related to our ESPP as we did not have an active offering period.

[f] Non-employee options and restricted stock units

We recognize non-employee stock-based compensation expense over the period of expected service by the non-employee. As the service is performed, we are required to update our valuation assumptions, re-measure unvested options and restricted stock units and record the stock-based compensation using the valuation as of the vesting date. This differs from the accounting for employee awards where the fair value is determined at the grant date and is not subsequently adjusted. This re-measurement may result in higher or lower stock-based compensation expense in the Consolidated Statements of Loss and Comprehensive Loss. As such, changes in the market price of our stock could materially change the value of an option or restricted stock unit and the resulting stock-based compensation expense.

[g] Common Stock Warrants

The following is a summary of outstanding warrants to purchase common stock at December 31, 2024:

	Total
	Outstanding		Exercise
	and		price per
	Exercisable		Share		Expiration Date
(1) Warrants issued in May 2019 financing		60,000	$	90.0000	May 2025
(2) Warrants issued in April 2020 financing		182,461	$	7.2400	April 2025
(3) Warrants issued in April 2020 financing		24,375	$	7.3200	April 2025
(4) Warrants issued in April 2020 financing		25,270	$	7.5900	April 2025
(5) Pre-Funded Warrants issued in August 2020 financing		142,857	$	0.0010	*
(6) Warrants issued in December 2020 financing		50,000	$	8.7500	December 2025
(7) Warrants issued in November 2022 financing		4,093,141	$	4.5000	November 2029
(8) Warrants issued in February 2024 financing		13,086,151	$	4.9060	**

* The pre-funded warrants do not have an expiration date.

**The 2024 Warrants, will expire on the earlier of (i) three and one-half years following the date of issuance and (ii) 30 days following our public disclosure of the acceptance of an NDA for cytisinicline by the FDA in a Day 74 Letter or equivalent correspondence.

The agreements governing the above warrants include the following terms:

•certain warrants have exercise prices which are subject to adjustment for certain events, including the issuance of stock dividends on our common stock and, in certain instances, the issuance of our common stock or instruments convertible into

our common stock at a price per share less than the exercise price of the respective warrants (specifically those issued under the December 2019 Public Offering and November 2022 Private Placement);

•warrant holders may exercise the warrants through a cashless exercise if, and only if, we do not have an effective registration statement then available for the issuance of the shares of our common stock. If an effective registration statement is available for the issuance of our common stock a holder may only exercise the warrants through a cash exercise;

•the exercise price and the number and type of securities purchasable upon exercise of the warrants are subject to adjustment upon certain corporate events, including certain combinations, consolidations, liquidations, mergers, recapitalizations, reclassifications, reorganizations, stock dividends and stock splits, a sale of all or substantially all of our assets and certain other events; and

•in the case of certain warrants, in the event of an “extraordinary transaction” or a “fundamental transaction” (as such terms are defined in the respective warrant agreements), generally including any merger with or into another entity, sale of all or substantially all of the Company’s assets, tender offer or exchange offer, or reclassification of its common stock, in which the successor entity (as defined in the respective warrant agreements) that assumes the successor entity is not a publicly traded company, the Company or any successor entity will pay the warrant holder, at such holder’s option, exercisable at any time concurrently with or within 30 days after the consummation of the extraordinary transaction or fundamental transaction, an amount of cash equal to the value of such holder’s warrants as determined in accordance with the Black Scholes option pricing model and the terms of the respective warrant agreement. In some circumstances, we or successor entity may be obligated to make such payments regardless of whether the successor entity that assumes the warrants is a publicly traded company; and

•with respect to the 2024 Warrants, in the event we consummate a “fundamental transaction,” as described in the 2024 Warrants and generally including a merger or consolidation with or into another entity or other reorganization event in which our common shares are converted or exchanged for securities, cash or other property, we are not the surviving entity and in which our stockholders immediately prior to the merger or consolidation do not own, directly or indirectly, at least 50% of the voting power of the surviving entity immediately after such merger or consolidation (excluding any merger effected solely to change the company’s name), or we sell, lease, license, assign, transfer, convey or otherwise dispose of all or substantially all of our assets or another entity acquires 50% or more of our outstanding shares of common stock, then following such event, the holders of the 2024 Warrants will be entitled to receive upon exercise of such 2024 Warrants the same kind and amount of securities, cash or property which the holders would have received had they exercised their 2024 Warrants immediately prior to such fundamental transaction. Any successor to us or surviving entity shall assume the obligations under the 2024 Warrants. Additionally, as more fully described in the 2024 Warrants, in the event of certain fundamental transactions, the holders of the 2024 Warrants will be entitled to receive consideration in an amount equal to the Black Scholes value of the 2024 Warrants on the date of consummation of such transaction.

For the year ended December 31, 2024, warrants to purchase 295,126 shares, issued in the December 2019 financing, were exercised at a per unit price of $2.31, for proceeds of $0.7 million. For the year ended December 31, 2023, warrants to purchase 98,333 shares, issued in the December 2019 financing, were exercised at a per unit price of $2.31, for proceeds of $0.2 million. As of December 31, 2024, all of our outstanding warrants are classified as equity.

[h] 401(k) Plan

We maintain a 401(k) plan. Our securities are not offered as an investment option. Our shares are prohibited for inclusion in our 401(k) plan, as well as any match of our shares to employee contributions.

[i] Loss per common share

The following table presents the computation of basic and diluted net loss attributable to common stockholders per share (in thousands, except per share and share amounts):

	Years ended December 31,
	2024			2023			2022
Numerator
Net loss	$	(39,827	)	$	(29,815	)	$	(42,350	)
Denominator
Weighted average number of common shares outstanding		32,071,146			19,827,354			10,593,034
Basic and diluted net loss per common share	$	(1.24	)	$	(1.50	)	$	(4.00	)

As of December 31, 2024, a total of 21,087,419 million shares, consisting of warrants to purchase 17,664,255 shares, options exercisable for 2,139,414 shares and 1,283,750 restricted stock units have not been included in the calculation of potential common

shares as their effect on diluted per share amounts would have been anti-dilutive. Additionally, the outstanding Convertible Debt due December 2024 is included in the calculation of diluted per share amounts only if its inclusion is dilutive for periods during which the notes were outstanding. As of December 31, 2024, the outstanding Convertible Debt was not included in the calculation of diluted per share amounts as its effect would have been anti-dilutive.

XML

Commitments and Contingencies

12 Months Ended

Dec. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

12. COMMITMENTS AND CONTINGENCIES

The following table summarizes our contractual obligations as of December 31, 2024 (in thousands):

	Total		Less than 1 year		1-3 years		3-5 years		More than 5 years
Vancouver office operating lease	$	131	$	63	$	68	$	—	$	—
Total	$	131	$	63	$	68	$	—	$	—

Leases

We have an operating lease for our corporate office.

Operating leases with a term of 12 months or longer are included in ROU assets, other current liabilities, and operating lease liabilities on our consolidated balance sheets. Finance leases are included in property and equipment, other current liabilities, and other long-term liabilities on our consolidated balance sheets.

Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an implicit rate, we use the incremental borrowing rate of comparable companies from a representative peer group selected based on industry and market capitalization. The operating lease ROU asset also includes any lease payments made and excludes lease incentives and initial direct costs incurred. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.

Vancouver Lease Arrangements

On November 19, 2018, we entered into a lease agreement for new office space in Vancouver, British Columbia, which commenced on February 1, 2019, and has a four-year term. Pursuant to this lease, we rent approximately 2,367 square feet of office space. On December 16, 2022, we entered into an agreement to extend the lease for another two-year term, which commenced on February 1, 2023. On December 9, 2024, we extended the lease for a further two-year term, which commenced on February 1, 2025. Pursuant to this lease, we rent approximately 2,367 square feet of office space. The annual rent is approximately $0.1 million.

The future minimum annual lease payments under the Vancouver lease are as follows (in thousands):

2025		63
2026		63
2027		5
Total	$	131

Consolidated rent and operating expense relating to the Vancouver, Canada office for years ended December 31, 2024, 2023 and 2022 was $0.1 million, $0.1 million and $0.1 million, respectively.

Other information related to leases was as follows:

	Year Ended
	December 31,
	2024			2023
Supplemental Cash Flows Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	59		$	57
Right-of-use assets obtained in exchange for lease obligations:
Operating leases		—			—
Weighted Average Remaining Lease Term
Operating leases	2.08 years			1.08 years
Weighted Average Discount Rate
Operating leases		8.98	%		8.98	%

Guarantees and Indemnifications

We indemnify our officers, directors and certain consultants for certain events or occurrences, subject to certain limits, while the officer or director is or was serving at its request in such capacity. The term of the indemnification period is equal to the officer’s or director’s lifetime.

The maximum amount of potential future indemnification is unlimited; however, we have obtained director and officer insurance that limits our exposure and may enable us to recover a portion of any future amounts paid. We believe that the fair value of these indemnification obligations is minimal. Accordingly, we have not recognized any liabilities relating to these obligations as of December 31, 2024.

We have certain agreements with certain organizations with which it does business that contain indemnification provisions pursuant to which it typically agrees to indemnify the party against certain types of third-party claims. We accrue for known indemnification issues when a loss is probable and can be reasonably estimated. There were no accruals for or expenses related to indemnification issues for any period presented.

XML

Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2024

Accounting Policies [Abstract]

Use of Estimates

Use of Estimates

The preparation of consolidated financial statements in conformity with United States generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and notes thereto. Actual results could differ from these estimates. Estimates and assumptions principally relate to estimates of contingent considerations, the initial fair value and forfeiture rates of stock options issued to employees and consultants, the estimated compensation cost on performance restricted stock unit awards, clinical trial and manufacturing accruals, estimated useful lives of property, plant, equipment and intangible assets, estimates and assumptions in goodwill impairment assessment, estimates and assumptions in contingent liabilities.

Cash Equivalents

Cash Equivalents

We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents, which we consider as available for sale and carry at fair value, with unrealized gains and losses, if any, reported as accumulated other comprehensive income or loss, which is a separate component of stockholders’ equity.

Marketable Securities

Marketable Securities

Marketable securities consist of financial instruments purchased with an original maturity of greater than three months and less than one year. We consider our marketable securities as available-for-sale and carry them at fair value, with unrealized gains and losses, if any, reported as accumulated other comprehensive income or loss, which is a separate component of stockholders’ equity. Realized gains and losses on the sale or impairment, if any, of these securities, are recognized in net income or loss. The cost of investments sold is based on the specific identification method.

Fair Value of Financial Instruments

Fair value of financial instruments

The fair value of our marketable securities is based on quoted market prices and trade data for comparable securities.

Other financial instruments including accounts payable, accrued liabilities other, accrued clinical liabilities and accrued compensation are carried at cost, which we believe approximates fair value because of the short-term maturities of these instruments.

Intellectual Property

Intellectual Property

The costs of acquiring intellectual property rights to be used in the research and development process, including licensing fees and milestone payments, are charged to research and development expense as incurred in situations where we have not identified an alternative future use for the acquired rights, and are capitalized in situations where we have identified an alternative future use. No costs associated with acquiring intellectual property rights have been capitalized to date. Costs of maintaining intellectual property rights are expensed as incurred.

Intangible Assets

Intangible Assets

Our intangible assets are subject to amortization and are amortized using the straight-line method over their estimated period of benefit. We evaluate the carrying amount of intangible assets periodically by taking into account events or circumstances that may warrant revised estimates of useful lives or that indicate the asset may be impaired.

Goodwill

Goodwill

Goodwill acquired in a business combination is assigned to the reporting unit that is expected to benefit from the combination as of the acquisition date. Goodwill is tested for impairment on an annual basis or, more frequently, if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit.

Share Purchase Agreement Contingent Consideration

Sopharma Share Purchase Agreement Contingent Consideration

We may be required to pay future contingent consideration to Sopharma, AD as part of the Share Purchase Agreement, which is contingent upon obtaining regulatory approval of cytisinicline by the FDA or the EMA.We determine the fair value of the contingent consideration using a probability based discounted cash flow approach whereby we forecast the timing of the cash flow of the related future payment based on cytisinicline's current clinical development phase and the remaining requirements for regulatory approval. We then discount the expected payment amount to calculate the present value and then apply a probability of success in obtaining regulatory approval as of the valuation date. We evaluate the underlying projection used in determining the fair value each period and make updates as necessary.

The significant assumptions we use to value the contingent consideration are the forecasted timing of the future payment, the risk-adjusted discount rate and the probability of success which are all considered significant unobservable inputs, and as such, the liability is classified as a Level 3 measurement. The risk-adjusted discount rate is adjusted for credit risk. An increase in the discount rate or decrease in the probability of success would result in a decrease in the fair value of the contingent consideration. Conversely, a decrease in the discount rate or increase in the probability of success would result in an increase in the fair value of the contingent consideration.

Property and Equipment

Property and Equipment

Property and equipment assets are recorded at cost less accumulated depreciation. Depreciation expense on assets acquired under capital lease is recorded within depreciation expense. Depreciation is recorded on a straight-line basis over the following periods:

Computer equipment	3 years
Furniture and fixtures	5 years
Machinery and equipment	5 - 10 years
Leasehold improvements and equipment under capital lease	Over the term of the lease

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the asset’s carrying amount may not be recoverable. We conduct our long-lived asset impairment analyses in accordance with ASC 360-10-15, “Impairment or Disposal of Long-Lived Assets.” ASC 360-10-15 requires us to group assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and evaluate the asset group against the sum of the undiscounted future cash flows. If the undiscounted cash flows do not indicate the carrying amount of the asset is recoverable, an impairment charge is measured as the amount by which the carrying amount of the asset group exceeds its fair value based on discounted cash flow analysis or appraisals.

Income Taxes

Income Taxes

Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are recognized for the differences between the carrying values of assets and liabilities and their respective income tax bases and for operating losses and tax credit carry forwards. A valuation allowance is provided for the portion of deferred tax assets that is more likely than not to be unrealized. Deferred tax assets and liabilities are measured using the enacted tax rates and laws.

Government Grants

Government Grants

We account for government grants by recognizing the benefit of the grant as qualifying expenditures are incurred provided that there is reasonable assurance that we have complied with all conditions under the terms of the grant and that the amount requested for reimbursement will be received. The government grant reduces the research and development, or R&D, expenses to which it relates on our statement of profit and loss.

Research and Development Costs

Research and Development Costs

Research and development costs are expensed as incurred, net of related refundable investment tax credits, with the exception of non-refundable advance payments for goods or services to be used in future research and development, which are capitalized in accordance

with ASC 730, “Research and Development” and included within Prepaid Expenses or Other Assets depending on when the assets will be utilized.

Clinical trial expenses are a component of research and development costs. These expenses include fees paid to contract research organizations and investigators and other service providers, which conduct certain product development activities on our behalf. We use an accrual basis of accounting, based upon estimates of the amount of service completed. In the event payments differ from the amount of service completed, prepaid expense or accrued liabilities amounts are adjusted on the balance sheet. These expenses are based on estimates of the work performed under service agreements, milestones achieved, patient enrollment and experience with similar contracts. We monitor each of these factors to the extent possible and adjust estimates accordingly.

Stock-Based Compensation

Stock-Based Compensation

Under the fair value recognition provisions of the ASC 718, “Stock Compensation,” we use the modified prospective method with respect to options granted to employees and directors. The expense is amortized on a straight-line basis over the graded vesting period.

Restricted Stock Unit Awards

Restricted Stock Unit Awards

We grant restricted stock unit awards that generally vest and are expensed over a four-year period. We also granted restricted stock unit awards that vest in conjunction with certain performance conditions to certain executive officers and key employees. At each reporting date, we evaluate whether achievement of the performance conditions is probable. Compensation expense is recorded over the appropriate service period based upon our assessment of accomplishing each performance provision or the occurrence of other events that may have caused the awards to accelerate and vest.

Segment Information

Segment Information

We follow the requirements of ASC 280, “Segment Reporting.” Operating segments are identified as components of an enterprise about which separate discreet financial information is available for evaluation by our Chief Executive Officer, the chief operating decision-maker, or CODM. The CODM assesses performance based on consolidated net income that is also reported on the Consolidated Statements of Loss and Comprehensive Loss as Net Loss.

We view our operations and manage our business as one operating segment, dedicated to the development and commercialization of cytisinicline for nicotine dependence, with operations located in Canada, the United States and the U.K .

Comprehensive Income (Loss)

Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss). Other comprehensive income (loss) consists of unrealized gains and losses on our available-for-sale marketable securities. We report the components of comprehensive loss in the statement of stockholders’ equity.

Loss per Common Share

Loss per Common Share

Basic loss per common share is computed using the weighted average number of common shares outstanding during the period. Diluted loss per common share is computed in accordance with the treasury stock method. The effect of potentially issuable common shares from outstanding stock options, restricted stock unit awards and warrants are anti-dilutive for all periods presented.

Warrants

Warrants

We account for warrants pursuant to the authoritative guidance on accounting for derivative financial instruments indexed to, and potentially settled in, a company’s own stock, on the understanding that in compliance with applicable securities laws, the warrants require the issuance of registered securities upon exercise and therefore do not sufficiently preclude an implied right to net cash settlement. We have warrants classified as equity and these are not reassessed for their fair value at the end of each reporting period. Warrants classified as equity are initially measured at their fair value and recognized as part of stockholders’ equity. Determining the appropriate fair-value model and calculating the fair value of registered warrants requires considerable judgment, including estimating stock price volatility and expected warrant life. The computation of expected volatility was based on the historical volatility of comparable companies from a representative peer group selected based on industry and market capitalization. A small change in the

estimates used may have a relatively large change in the estimated valuation. We use the Black-Scholes pricing model to value the warrants.

Reporting Currency and Foreign Currency Translation

Reporting Currency and Foreign Currency Translation

Our functional and reporting currency is the U.S. dollar. Revenues and expenses denominated in other than U.S. dollars are translated at average monthly rates.

The functional currency of our foreign subsidiary is the U.S. dollar. For this foreign operation, assets and liabilities denominated in other than U.S. dollars are translated at the period-end rates for monetary assets and liabilities and historical rates for non-monetary assets and liabilities. Revenues and expenses denominated in other than U.S. dollars are translated at average monthly rates. Gains and losses from this translation are recognized in the consolidated statement of loss and comprehensive loss.

Recent Accounting Standards

Recent Accounting Standards

In December 2023, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures”. This guidance is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU 2023-09 address investor requests for enhanced income tax information primarily through changes to disclosure regarding rate reconciliation and income taxes paid both in the U.S. and in foreign jurisdictions. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024 on a prospective basis, with the option to apply the standard retrospectively. Early adoption is permitted. We are evaluating this standard to determine if adoption will have a material impact on our consolidated financial statements.

In November 2024, the FASB issued ASU2024-03 "Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses". The standard will require additional disclosure of the nature of expenses included in the income statement in response to longstanding requests from investors for more information about an entity’s expenses. The new standard requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. ASU2024-03 applies to all public business entities and is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods within annual reporting periods beginning after December 15, 2027. The requirements will be applied prospectively with the option for retrospective application. Early adoption is permitted. We are evaluating this standard to determine if adoption will have a material impact on our consolidated financial statements.

Recent Adopted Accounting Policies

In November 2023, the FASB issued ASU2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which is intended to provide enhanced segment disclosures. The standard will require disclosures about significant segment expenses and other segment items and identifying the Chief Operating Decision Maker and how they use the reported segment profitability measures to assess segment performance and allocate resources. These enhanced disclosures are required for all entities on an interim and annual basis, even if they have only a single reportable segment. The standard is effective for years beginning after December 15, 2023, and interim periods within annual periods beginning after December 15, 2024 and early adoption is permitted. The adoption of this standard did not have a significant impact on our financial position or results of operations.

XML

Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2024

Accounting Policies [Abstract]

Summary of Depreciation on Property and Equipment

Depreciation is recorded on a straight-line basis over the following periods:

Computer equipment	3 years
Furniture and fixtures	5 years
Machinery and equipment	5 - 10 years
Leasehold improvements and equipment under capital lease	Over the term of the lease

XML

Intangibles (Tables)

12 Months Ended

Dec. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Intangible Assets

The components of intangible assets were as follows:

	December 31, 2024							December 31, 2023
	Gross Carrying		Accumulated			Net Carrying		Gross Carrying		Accumulated			Net Carrying
	Value		Amortization			Value		Value		Amortization			Value
License Agreements	$	3,117	$	(2,143	)	$	974	$	3,117	$	(1,920	)	$	1,197

Estimated Future Amortization Expense Related to Intangible Assets

The following table outlines the estimated future amortization expense related to intangible assets held as of December 31, 2024:

Year Ending December 31,
2025		223
2026		223
2027		223
2028		223
2029		82
Total	$	974

XML

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2024

Fair Value Disclosures [Abstract]

Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables present information about our assets and liabilities that are measured at fair value on a recurring basis, and indicate the fair value hierarchy of the valuation techniques we utilized to determine such fair value (in thousands):

December 31, 2024	Level 1		Level 2		Level 3		Total
Assets
Money market securities (cash equivalents)	$	12,135	$	—	$	—	$	12,135
Restricted cash		20		—		—		20
US government securities		—		9,473		—		9,473
Corporate bonds		—		12,134		—		12,134
Total assets	$	12,155	$	21,607	$	—	$	33,762
Liabilities
Convertible debt	$	—		9,430	$	—	$	9,430
Contingent consideration		—		—		1,149		1,149
Total liabilities	$	—	$	9,430	$	1,149	$	10,579

December 31, 2023	Level 1		Level 2		Level 3		Total
Assets
Money market securities (cash equivalents)	$	14,252	$	—	$	—	$	14,252
Restricted cash		50		—		—		50
Total assets	$	14,302	$	—	$	—	$	14,302
Liabilities
Convertible debt	$	—	$	16,652	$	—	$	16,652
Contingent consideration		—		—		528		528
Total liabilities	$	—	$	16,652	$	528	$	17,180

Summary of Cash and Cash Equivalents

Cash and cash equivalents (in thousands):

			Gross		Gross
	Amortized		Unrealized		Unrealized		Estimated
December 31, 2024	Cost		Gains		Losses		Fair Value
Money market securities		12,135		—		—		12,135
Total cash and cash equivalents	$	12,135	$	—	$	—	$	12,135
Money market securities (restricted cash)		20		—		—		20
Total restricted cash	$	20	$	—	$	—	$	20

			Gross		Gross
	Amortized		Unrealized		Unrealized		Estimated
December 31, 2023	Cost		Gains		Losses		Fair Value
Money market securities		14,252		—		—		14,252
Total cash and cash equivalents	$	14,252	$	—	$	—	$	14,252
Money market securities (restricted cash)		50		—		—		50
Total restricted cash	$	50	$	—	$	—	$	50

Schedule of Corporate Bonds and Commercial Paper

			Gross		Gross
	Amortized		Unrealized		Unrealized		Estimated
December 31, 2024	Cost		Gains		Losses		Fair Value
US government securities	$	9,461	$	—	$	12	$	9,473
Corporate bonds		12,119		—		15		12,134
Total marketable securities	$	21,580	$	—	$	27	$	21,607

Schedule of Aggregate Fair Value of Principal Amount of Convertible Debt

The aggregate fair value of the principal amount of the convertible debt is a Level 2 fair value measurement.

	December 31, 2024						December 31, 2023
	Principal		Carrying		Fair		Principal		Carrying		Fair
	Amount		Value		Value		Amount		Value		Value
2023 SVB Convertible Debt	$	—	$	—	$	—	$	15,000	$	16,662	$	16,652

	December 31, 2024						December 31, 2023
	Principal		Carrying		Fair		Principal		Carrying		Fair
	Amount		Value		Value		Amount		Value		Value
2024 SVB Convertible Debt	$	10,000	$	9,837	$	9,430	$	—	$	—	$	—

As of December 31, 2024, the Convertible Term Loan and New Convertible Term Loan balances were comprised of the following:

	Year Ended
	December 31,
	2024		2023
Convertible Term Loan Information
Principal	$	—	$	15,000
Transaction Costs		—		(5	)
Accrued paid-in-kind interest		—		2,311
Discount on modification of debt		—		(1,074	)
Accretion of discount on modification of debt		—		430
		—		16,662

	Year Ended
	December 31,
	2024			2023
New Convertible Term Loan Information
Principal	$	10,000		$	—
Transaction costs		(186	)		—
Amortization of transaction costs		23			—
		9,837			—

Schedule of Changes in Fair Value of Liabilities

	Opening
	Balance at		Change in		Balance at
(in thousands)	December 31, 2023		Fair Value		December 31, 2024
Contingent consideration	$	528	$	621	$	1,149

XML

Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2024

Property, Plant and Equipment [Abstract]

Summary of Property and Equipment

Property and equipment consisted of the following (in thousands):

			Accumulated		Net Book
	Cost		Depreciation		Value
December 31, 2024
Computer equipment	$	114	$	108	$	6
Furniture and fixtures		28		28		—
Leasehold improvements		25		25		—
Computer software		77		75		2
Equipment under capital lease		12		12		—
Total property and equipment	$	256	$	248	$	8

XML

Convertible Debt (Tables)

12 Months Ended

Dec. 31, 2024

Debt Disclosure [Abstract]

Schedule of Aggregate Fair Value of Principal Amount of Convertible Debt

The aggregate fair value of the principal amount of the convertible debt is a Level 2 fair value measurement.

	December 31, 2024						December 31, 2023
	Principal		Carrying		Fair		Principal		Carrying		Fair
	Amount		Value		Value		Amount		Value		Value
2023 SVB Convertible Debt	$	—	$	—	$	—	$	15,000	$	16,662	$	16,652

	December 31, 2024						December 31, 2023
	Principal		Carrying		Fair		Principal		Carrying		Fair
	Amount		Value		Value		Amount		Value		Value
2024 SVB Convertible Debt	$	10,000	$	9,837	$	9,430	$	—	$	—	$	—

As of December 31, 2024, the Convertible Term Loan and New Convertible Term Loan balances were comprised of the following:

	Year Ended
	December 31,
	2024		2023
Convertible Term Loan Information
Principal	$	—	$	15,000
Transaction Costs		—		(5	)
Accrued paid-in-kind interest		—		2,311
Discount on modification of debt		—		(1,074	)
Accretion of discount on modification of debt		—		430
		—		16,662

	Year Ended
	December 31,
	2024			2023
New Convertible Term Loan Information
Principal	$	10,000		$	—
Transaction costs		(186	)		—
Amortization of transaction costs		23			—
		9,837			—

XML

Income Tax (Tables)

12 Months Ended

Dec. 31, 2024

Income Tax Disclosure [Abstract]

Summary of U.S. and Foreign Components of Income (Loss) before Income Taxes

U.S. and foreign components of income (loss) before income taxes were as follows (in thousands):

(In thousands)	2024			2023			2022
U.S.	$	(39,532	)	$	(28,982	)	$	(41,660	)
Foreign		(295	)		(833	)		(690	)
Income (loss) before income taxes	$	(39,827	)	$	(29,815	)	$	(42,350	)

Reconciliation of Income Tax Attributable to Operations

Income tax expense/(recovery) consisted of the following (in thousands):

(In thousands)	2024			2023			2022
Income tax recovery at statutory rates (at a rate of 21% for all years presented)	$	(8,364	)	$	(6,261	)	$	(8,894	)
Expenses not deducted for tax purposes		906			477			299
Effect of tax rate changes on deferred tax assets and liabilities		—			(169	)		(18	)
Rate differential on foreign earnings		(14	)		(36	)		(26	)
Research and development tax credits		(1,085	)		(883	)		(1,154	)
Change in valuation allowance		8,669			7,686			10,464
Reassessment of previously recognized net operating losses		—			—			9
Adjustment to prior year research and development tax credits		—			(760	)		(731	)
Other		(112	)		(54	)		51
Income tax expense/(recovery)	$	—		$	—		$	—

Summary of Tax Effects of Temporary Differences and Carryforwards Rise to Deferred Tax Assets and Liabilities

[b] The tax effects of the temporary differences and carryforwards that give rise to deferred tax assets and liabilities are as follows (in thousands):

	2024			2023
Deferred tax assets
Tax basis in excess of book value of assets	$	899		$	899
Net operating loss carryforwards		54,553			48,867
Research and development deductions and credits		11,800			10,716
Stock options		1,535			1,134
Capitalized R&D expenses		12,840			11,528
Other		533			434
Total deferred tax assets		82,160			73,578
Valuation allowance		(81,830	)		(73,232	)
Net deferred tax assets		330			346
Deferred tax liabilities
Right-of-use asset		(122	)		(91	)
Other		(208	)		(255	)
Total deferred tax liabilities		(330	)		(346	)
Net deferred tax liabilities		—			—

Reconciliation of Unrecognized Tax Benefits of Uncertain Tax Positions

[c] A reconciliation of the unrecognized tax benefits of uncertain tax positions for the year ended December 31, 2024 is as follows (in thousands):

	Year ended
	December 31,
	2024		2023		2022
Gross unrecognzed tax benefits at January 1	$	761	$	761	$	761
Additions (reductions) from tax positions taken in prior years		—		—		—
Additions (reductions) from tax positions taken in the current year		—		—		—
Tax settlements		—		—		—
Gross unrecognzed tax benefits at December 31	$	761	$	761	$	761

Summary of Years Open to Examination Under Different Jurisdiction

We are subject to taxes in Canada, the U.K. and the United States until the applicable statute of limitations expires. However, in Canada and the United States, all tax years remain subject to examination due to the carryforward of unutilized NOLs and tax credits.

Tax audits by their very nature are often complex and can require several years to complete. To our knowledge, we are not currently under examination by any taxing authorities.

Tax	Years open to
Jurisdiction	examination
Canada	2020 to 2024
United Kingdom	2018 to 2024
US	2021 to 2024

XML

Common Stock (Tables)

12 Months Ended

Dec. 31, 2024

Equity [Abstract]

Summary of Fair Value of Option Awards

The estimated fair value of stock options granted in the respective periods was determined using the Black-Scholes option pricing model using the following weighted average assumptions:

	2024			2023
Risk-free interest rates		4.00	%		3.60	%
Expected dividend yield		0	%		0	%
Expected life	5.74 years			5.75 years
Expected volatility		87.40	%		115.19	%
Forfeiture rate		0	%		0	%

Summary of Stock-Based Compensation Expense

The results for the periods set forth below included stock-based compensation expense in the following expense categories of the consolidated statements of loss (in thousands):

	Year ended
	December 31,
	2024		2023
Research and development	$	1,736	$	1,122
General and administrative		3,589		2,317
Total stock-based compensation	$	5,325	$	3,439

Summary of Stock Options Activity

Stock option transactions and the number of stock options outstanding are summarized below:

	Number of			Weighted
	Optioned			Average
	Common			Exercise
	Shares			Price
Balance, January 1, 2024		1,461,980		$	12.12
Granted		677,500			4.54
Expired		(66	)		17,565.33
Balance, December 31, 2024		2,139,414		$	9.18

Summary of Stock Options Outstanding Regarding Number of Common Shares Issuable upon Exercise of Outstanding Options

(1) Number of common shares issuable upon exercise of outstanding options:

					Weighted-
					Average
					Remaining
			Weighted-		Contractual
			Average		Life
Exercise Prices	Number of Options		Exercise Price		(in years)
$4.52 - $4.52		211,000	$	4.52		9.93
$4.53 - $4.54		25,000		4.53		8.20
$4.55 - $4.72		466,500		4.55		9.06
$4.73 - $4.99		409,750		4.90		8.07
$5.00 - $5.99		156,750		5.88		8.17
$6.00 - $7.89		167,200		6.68		7.52
$7.90 - $8.43		226,250		8.26		7.01
$8.44 - $11.65		189,630		10.61		5.57
$11.66 - $20.74		238,400		13.07		6.07
$20.75 - $4,158.00		48,934		110.49		3.71
		2,139,414	$	9.18		7.78

Summary of Stock Options Outstanding Regarding Number of Common Shares Issuable upon Exercise of Vested Options

(2) Number common shares issuable upon exercise of vested options:

					Weighted-
					Average
					Remaining
			Weighted-		Contractual
			Average		Life
Exercise Prices	Number of Options		Exercise Price		(in years)
$4.52 - $4.52		—	$	—		—
$4.53 - $4.54		10,937		4.53		8.20
$4.55 - $4.72		50,000		4.55		9.06
$4.73 - $4.99		295,499		4.90		8.07
$5.00 - $5.99		92,064		5.88		8.16
$6.00 - $7.89		148,734		6.62		7.59
$7.90 - $8.43		221,353		8.26		7.01
$8.44 - $11.65		189,630		10.61		5.57
$11.66 - $20.74		234,802		13.07		6.07
$20.75 - $4,158.00		48,934		110.49		3.71
		1,291,953	$	12.05		6.98

Summary of Restricted Stock Unit Award Activity

The following table summarizes our restricted stock unit award activity during the year ended December 31, 2024:

				Weighted
	Number			Average
	of			Grant Date
	Shares			Fair Value
Balance, January 1, 2024		507,875		$	5.65
Granted		889,000			4.54
Released		(113,125	)		8.26
Balance, December 31, 2024		1,283,750		$	4.65

Summary of Outstanding Warrants

The following is a summary of outstanding warrants to purchase common stock at December 31, 2024:

	Total
	Outstanding		Exercise
	and		price per
	Exercisable		Share		Expiration Date
(1) Warrants issued in May 2019 financing		60,000	$	90.0000	May 2025
(2) Warrants issued in April 2020 financing		182,461	$	7.2400	April 2025
(3) Warrants issued in April 2020 financing		24,375	$	7.3200	April 2025
(4) Warrants issued in April 2020 financing		25,270	$	7.5900	April 2025
(5) Pre-Funded Warrants issued in August 2020 financing		142,857	$	0.0010	*
(6) Warrants issued in December 2020 financing		50,000	$	8.7500	December 2025
(7) Warrants issued in November 2022 financing		4,093,141	$	4.5000	November 2029
(8) Warrants issued in February 2024 financing		13,086,151	$	4.9060	**

Computation of Basic and Diluted Net Loss Attributable to Common Shareholders Per Share

The following table presents the computation of basic and diluted net loss attributable to common stockholders per share (in thousands, except per share and share amounts):

	Years ended December 31,
	2024			2023			2022
Numerator
Net loss	$	(39,827	)	$	(29,815	)	$	(42,350	)
Denominator
Weighted average number of common shares outstanding		32,071,146			19,827,354			10,593,034
Basic and diluted net loss per common share	$	(1.24	)	$	(1.50	)	$	(4.00	)

XML

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2024

Operating Leased Assets [Line Items]

Summary of Contractual Obligations

The following table summarizes our contractual obligations as of December 31, 2024 (in thousands):

	Total		Less than 1 year		1-3 years		3-5 years		More than 5 years
Vancouver office operating lease	$	131	$	63	$	68	$	—	$	—
Total	$	131	$	63	$	68	$	—	$	—

Summary of Other Information Related to Leases

Other information related to leases was as follows:

	Year Ended
	December 31,
	2024			2023
Supplemental Cash Flows Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	59		$	57
Right-of-use assets obtained in exchange for lease obligations:
Operating leases		—			—
Weighted Average Remaining Lease Term
Operating leases	2.08 years			1.08 years
Weighted Average Discount Rate
Operating leases		8.98	%		8.98	%

Vancouver Office Operating Lease [Member]

Operating Leased Assets [Line Items]

Summary of Future Minimum Annual Lease Payments

The future minimum annual lease payments under the Vancouver lease are as follows (in thousands):

2025		63
2026		63
2027		5
Total	$	131

XML

Nature of Business, Basis of Presentation and Liquidity Risk - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Nature Of Business And Basis Of Presentation [Line Items]
Accumulated deficit	$ (205,578)	$ (165,751)
Cash,cash equivalents and marketable securities	34,400
Working capital	29,800
Net Income (Loss)	(39,827)	(29,815)	$ (42,350)
Net cash used in operating activities	$ 29,770	$ 24,479	$ 37,569

XML

Accounting Policies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) Segment	Dec. 31, 2023 USD ($)
Accounting Policies [Line Items]
Maturity period of liquid investments	3 months
Number of operating segments | Segment	1
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]	srt:ChiefExecutiveOfficerMember
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description	The CODM assesses performance based on consolidated net income that is also reported on the Consolidated Statements of Loss and Comprehensive Loss as Net Loss.
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2023-07 [Member]
Right-of-use assets | $	$ 119	$ 66
Restricted Stock Unit Awards [Member]
Accounting Policies [Line Items]
Award vesting period	4 years

XML

Accounting Policies - Summary of Depreciation on Property and Equipment (Detail)	Dec. 31, 2024
Computer equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Machinery and equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Machinery and equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life	10 years
Leasehold improvements and equipment under capital lease [Member]
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration]	us-gaap:UsefulLifeTermOfLeaseMember

XML

Financial Instruments and Risk - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Concentration Risk [Line Items]
Cash	$ 200
Cash equivalents	$ 12,135	$ 14,252
Average days to maturity of Company's portfolio of cash equivalents and marketable securities	67 days
Sweep Account [Member]
Concentration Risk [Line Items]
Cash equivalents	$ 1,800
Maximum [Member]
Concentration Risk [Line Items]
Maturity period of securities	1 year

XML

Government Grant - Additional Information (Details) - USD ($)		1 Months Ended	12 Months Ended
	Aug. 01, 2021	Jun. 30, 2022	Dec. 31, 2024	Dec. 31, 2023
Government Grant [Line Items]
Grant receivable				$ 111,000
NIDA
Government Grant [Line Items]
Grant awarded	$ 300,000	$ 2,500,000
NIDA/NIH
Government Grant [Line Items]
Reduction in R&D expense			$ 16,000	$ 1,200,000
Reimbursements received			$ 2,500,000

XML

Intangibles - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	May 18, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets, Fair Value			$ 3,100,000
Intangible assets, Useful life			14 years
License agreement amortization expense	$ 200,000	$ 200,000
Impairment of intangible assets	$ 0

XML

Intangibles - Components of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Finite Lived Intangible Assets [Line Items]
Intangible assets, Net Carrying Value	$ 974	$ 1,197
License Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets, Gross Carrying Value	3,117	3,117
Intangible assets, Accumulated Amortization	(2,143)	(1,920)
Intangible assets, Net Carrying Value	$ 974	$ 1,197

XML

Intangibles - Estimated Future Amortization Expense Related to Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2025	$ 223
2026	223
2027	223
2028	223
2029	82
Intangible assets, Net Carrying Value	$ 974	$ 1,197

XML

License Agreements - Additional Information (Detail) - USD ($)			12 Months Ended		102 Months Ended
	Jan. 22, 2018	May 14, 2015	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Jul. 31, 2016
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Cash			$ 200,000		$ 200,000
Loss on contingent consideration			621,000	$ 528,000
University of Bristol [Member]
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Maximum amount payable under license agreement, tied to milestones						$ 3,200,000
Payments under license agreement					125,000
University of Bristol [Member] | Amendment to the University of Bristol License Agreement [Member]
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Maximum amount payable under license agreement, tied to milestones	$ 1,700,000
Payments under license agreement	$ 37,500
Sopharma [Member] | Share Purchase Agreement [Member]
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Percentage of outstanding shares acquired		75.00%
Cash		$ 2,000,000
Deferred payment		$ 2,000,000
Fair value of the contingent consideration			1,100,000		$ 1,100,000
Loss on contingent consideration			$ 600,000	$ 500,000

XML

Fair Value Measurements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2024
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Maximum maturity period of cash and cash equivalents	90 days
Level 3 [Member] | Measurement Input, Discount Rate [Member] | Share Purchase Agreement [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Measurement input	0.308
Business Combination, Contingent Consideration, Liability, Measurement Input [Extensible Enumeration]	us-gaap:ValuationTechniqueDiscountedCashFlowMember
Level 3 [Member] | Measurement Input, Probability of Success [Member] | Share Purchase Agreement [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Measurement input	0.906
Business Combination, Contingent Consideration, Liability, Measurement Input [Extensible Enumeration]	us-gaap:ValuationTechniqueDiscountedCashFlowMember
Maximum [Member]
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Maturity period of securities	1 year

XML

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Measurements, Recurring [Member]
Assets
Total assets	$ 33,762	$ 14,302
Liabilities
Total liabilities	10,579	17,180
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member]
Assets
Total assets	12,134
Fair Value, Measurements, Recurring [Member] | Convertible Debt [Member]
Liabilities
Total liabilities	9,430	16,652
Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member]
Liabilities
Total liabilities	1,149	528
Fair Value, Measurements, Recurring [Member] | US Government Securities [Member]
Assets
Total assets	9,473
Fair Value, Measurements, Recurring [Member] | Money market securities (cash equivalents) [Member]
Assets
Total assets	12,135	14,252
Fair Value, Measurements, Recurring [Member] | Restricted cash [Member]
Assets
Total assets	20	50
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets
Total assets	12,155	14,302
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Money market securities (cash equivalents) [Member]
Assets
Total assets	12,135	14,252
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Restricted cash [Member]
Assets
Total assets	20	50
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets
Total assets	21,607
Liabilities
Total liabilities	9,430	16,652
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member]
Assets
Total assets	12,134
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Convertible Debt [Member]
Liabilities
Total liabilities	9,430	16,652
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | US Government Securities [Member]
Assets
Total assets	9,473
Level 3 [Member] | Contingent Consideration [Member]
Liabilities
Total liabilities	1,149	528
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities
Total liabilities	1,149	528
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member]
Liabilities
Total liabilities	$ 1,149	$ 528

XML

Fair Value Measurements - Summary of Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents, amortized cost and estimated fair value	$ 12,135	$ 14,252
Restricted cash, amortized cost and estimated fair value	20	50
Money market securities [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash equivalents, amortized cost and estimated fair value	12,135	14,252
Restricted cash, amortized cost and estimated fair value	$ 20	$ 50

XML

Fair Value Measurements - Schedule of Corporate Bonds and Commercial Paper (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	$ 21,580
Gross Unrealized Losses	27
Estimated Fair Value	21,607
US Government Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	9,461
Gross Unrealized Losses	12
Estimated Fair Value	9,473
Corporate Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	12,119
Gross Unrealized Losses	15
Estimated Fair Value	$ 12,134

XML

Fair Value Measurements - Schedule of Aggregate Fair Value of Principal Amount of Convertible Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Convertible Debt, Principal Amount		$ 15,000
Convertible Debt, Carrying Value		16,662
2023 SVB Convertible Debt
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Convertible Debt, Principal Amount	$ 0	15,000
Convertible Debt, Carrying Value	0	16,662
Convertible Debt, Fair Value	0	16,652
2024 SVB Convertible Debt
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Convertible Debt, Principal Amount	10,000	0
Convertible Debt, Carrying Value	9,837	0
Convertible Debt, Fair Value	$ 9,430	$ 0

XML

Fair Value Measurements - Schedule of Changes in Fair Value of Liabilities (Details) - Level 3 [Member] - Contingent Consideration [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of total financial liabilities	$ 528
Liabilities, Fair Value Adjustment	621
Fair value of total financial liabilities	$ 1,149

XML

Property and Equipment - Summary of Property and Equipment (Detail) $ in Thousands	Dec. 31, 2024 USD ($)
Property, Plant and Equipment [Line Items]
Cost	$ 256
Accumulated Depreciation	248
Net Book Value	8
Computer equipment [Member]
Property, Plant and Equipment [Line Items]
Cost	114
Accumulated Depreciation	108
Net Book Value	6
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Cost	28
Accumulated Depreciation	28
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Cost	25
Accumulated Depreciation	25
Computer software [Member]
Property, Plant and Equipment [Line Items]
Cost	77
Accumulated Depreciation	75
Net Book Value	2
Equipment under capital lease [Member]
Property, Plant and Equipment [Line Items]
Cost	12
Accumulated Depreciation	$ 12

XML

Convertible Debt - Additional Information (Details)		4 Months Ended	12 Months Ended
	Jul. 25, 2024 USD ($) Days $ / shares	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Oct. 31, 2025 USD ($)	Dec. 31, 2023 USD ($)	May 15, 2023 USD ($)	Apr. 26, 2022 USD ($)	Dec. 22, 2021 USD ($)
Convertible Debt [Line Items]
Convertible debt principal amount					$ 15,000,000
Convertible Term Loan [Member]
Convertible Debt [Line Items]
Debt conversion description	conversion price equal to the greater of (i) $4.854, subject to customary adjustment provisions, and (ii) the lower of (a) 150% of the average of the closing sale price of our common stock during the 10 trading days preceding the effective date of such tranche and (b) 150% of the closing sale price of our common stock on the trading day immediately preceding the effective date of such tranche.
SVB [Member] | Contingent Convertible Debt Agreement [Member]
Convertible Debt [Line Items]
Convertible debt principal amount								$ 25,000,000
SVB [Member] | Contingent Convertible Debt Agreement [Member] | Convertible Debt [Member]
Convertible Debt [Line Items]
Convertible debt principal amount								$ 15,000,000
SVB [Member] | Contingent Convertible Debt Agreement [Member] | Non-Convertible Term Loans [Member]
Convertible Debt [Line Items]
Convertible debt principal amount							$ 10,000,000
Loan agreement expiration date			Apr. 30, 2023
Loan amount drawn			$ 0
SVB [Member] | Contingent Convertible Debt Agreement [Member] | Convertible Term Loan [Member]
Convertible Debt [Line Items]
Convertible debt principal amount						$ 16,600,000
SVB and Lender [Member] | Contingent Convertible Debt Agreement [Member] | Convertible Term Loan [Member]
Convertible Debt [Line Items]
Convertible debt principal amount	$ 10,000,000
Maturity date	Jun. 01, 2028
Convertible debt, interest rate	1.00%
Convertible debt, stated rate	7.00%
Conversion price per share | $ / shares	$ 7
Conversion price percentage of average closing sale price	150.00%
Conversion price percentage of closing trading share price	150.00%
Stock price trigger | $ / shares	$ 24
Threshold consecutive trading days | Days	10
Threshold percentage of conversion amount of debt	50.00%
Prepayment fee percentage on or after first anniversary	3.00%
Prepayment fee percentage occurs after first anniversary but on or prior to the second anniversary	2.00%
Prepayment fee percentage after second anniversary before maturity	1.00%
Prepayment fee percentage on original aggregate principal	4.00%
SVB and Lender [Member] | Contingent Convertible Debt Agreement [Member] | Convertible Term Loan [Member] | Subsequent Events [Member]
Convertible Debt [Line Items]
Convertible debt principal amount		$ 5,000,000		$ 5,000,000
Net cash proceeds from the sale and issuance of equity securities		$ 40,000,000
SVB and Lender [Member] | Contingent Convertible Debt Agreement [Member] | Convertible Term Loan [Member] | Minimum [Member]
Convertible Debt [Line Items]
Conversion price per share | $ / shares	$ 4.854
SVB and Lender [Member] | Registration Rights Agreement [Member]
Convertible Debt [Line Items]
Share holding percentage of shares issued and outstanding	7.00%

XML

Convertible Debt - Schedule of Convertible Term Loan Balance Including Convertible Debt Balance (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Convertible Term Loan Information
Convertible Debt, Principal Amount		$ 15,000
Transaction Costs		(5)
Accrued paid-in-kind interest		2,311
Discount on modification of debt		(1,074)
Accretion of discount on modification of debt		430
Convertible debt		$ 16,662
New Convertible Term Loan [Member]
Convertible Term Loan Information
Convertible Debt, Principal Amount	$ 10,000
Transaction Costs	(186)
Amortization of transaction costs	23
Convertible debt	$ 9,837

XML

Income Tax - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Taxes [Line Items]
Future enacted income tax rate assumed for both Federal and state deferred tax calculations	21.00%	21.00%	21.00%
Deferred tax assets liabilities, valuation allowance	$ 81,800,000
Deferred tax assets	0
Increase in allowance considered deferred tax assets	$ 8,600,000
Income tax rate assumed for both State and Foreign deferred tax calculations	21.00%	21.00%	21.00%
Tax penalties or accrued interest recorded	$ 0	$ 0
Unrecognized tax benefits	800,000
Accrued interest and penalties related to income taxes	$ 0	0
Canada [Member]
Income Taxes [Line Items]
Tax credit carryforwards expiration year	2025
Non-capital loss carryforwards	$ 107,300,000	107,000,000
Unclaimed tax deductions related to scientific research and experimental development expenditures	15,800,000
UK [Member]
Income Taxes [Line Items]
Operating loss carryforwards	4,200,000	4,000,000
Research and Development Tax Credits [Member]
Income Taxes [Line Items]
Tax credit carryforwards	$ 5,100,000	4,000,000
Tax credit carryforwards expiration year	2037
Research and Development Tax Credits [Member] | Canada [Member]
Income Taxes [Line Items]
Tax credit carryforwards	$ 2,700,000	2,700,000
Federal [Member]
Income Taxes [Line Items]
Operating loss carryforwards	$ 116,800,000	$ 90,200,000
Operating loss carryforwards expiration year	2029
Operating loss carryforwards indefinitely	$ 106,700,000

XML

Income Tax - Summary of U.S. and Foreign Components of Income (Loss) before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
U.S.	$ (39,532)	$ (28,982)	$ (41,660)
Foreign	(295)	(833)	(690)
Income (loss) before income taxes	$ (39,827)	$ (29,815)	$ (42,350)

XML

Income Tax - Reconciliation of Income Tax Attributable to Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income tax recovery at statutory rates (at a rate of 21% for all years presented)	$ (8,364)	$ (6,261)	$ (8,894)
Expenses not deducted for tax purposes	906	477	299
Effect of tax rate changes on deferred tax assets and liabilities		(169)	(18)
Rate differential on foreign earnings	(14)	(36)	(26)
Research and development tax credits	(1,085)	(883)	(1,154)
Change in valuation allowance	8,669	7,686	10,464
Reassessment of previously recognized net operating losses			9
Adjustment to prior year research and development tax credits		(760)	(731)
Other	$ (112)	$ (54)	$ 51

XML

Income Tax - Reconciliation of Income Tax Attributable to Operations (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income tax rate assumed for both State and Foreign deferred tax calculations	21.00%	21.00%	21.00%

XML

Income Tax - Summary of Tax Effects of Temporary Differences and Carryforwards Rise to Deferred Tax Assets and Liabilities (Detail) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets
Tax basis in excess of book value of assets	$ 899,000	$ 899,000
Net operating loss carryforwards	54,553,000	48,867,000
Research and development deductions and credits	11,800,000	10,716,000
Stock options	1,535,000	1,134,000
Capitalized R&D expenses	12,840,000	11,528,000
Other	533,000	434,000
Total deferred tax assets	82,160,000	73,578,000
Valuation allowance	(81,830,000)	(73,232,000)
Net deferred tax assets	330,000	346,000
Deferred tax liabilities
Right-of-use asset	(122,000)	(91,000)
Other	(208,000)	(255,000)
Total deferred tax liabilities	(330,000)	$ (346,000)
Net deferred tax assets	$ 0

XML

Income Tax - Reconciliation of Unrecognized Tax Benefits of Uncertain Tax Positions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Gross unrecognized tax benefits, Beginning Balance	$ 761	$ 761	$ 761
Additions (reductions) from tax positions taken in prior years	0	0	0
Gross unrecognized tax benefits, Ending Balance	$ 761	$ 761	$ 761

XML

Income Tax - Summary of Years Open to Examination under Different Jurisdiction (Detail)	12 Months Ended
	Dec. 31, 2024
Canada [Member] | Canada [Member]
Income Tax Examination [Line Items]
Years open to examination	2020 2021 2022 2023 2024
Canada [Member] | UK [Member]
Income Tax Examination [Line Items]
Years open to examination	2018 2019 2020 2021 2022 2023 2024
US [Member]
Income Tax Examination [Line Items]
Years open to examination	2021 2022 2023 2024

XML

Common Stock - Authorized - Additional Information (Detail) - $ / shares	Dec. 31, 2024	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Common stock, shares authorized	150,000,000	150,000,000
Common stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000
Preferred stock, par value	$ 0.001

XML

Common Stock - Issued and Outstanding Shares - Additional Information (Detail) - USD ($)	1 Months Ended			12 Months Ended			26 Months Ended
	Feb. 29, 2024	May 31, 2023	Nov. 30, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Feb. 29, 2024
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option exercises, Shares				0	0
Restricted stock unit settlements, Shares				113,125	139,750
Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued					60,000	3,584
Restricted stock unit settlements, Shares				113,125	139,750	26,625
Private Placement [Member] | Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued						8,186,282
Direct Offering [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Gross proceeds from issuance of common stock	$ 60,000,000	$ 16,500,000
Placement agent fees and offering expenses	3,900,000	1,200,000
Proceeds from issuance of common stock	$ 56,100,000	$ 15,300,000
Direct Offering [Member] | Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued	13,086,151	3,000,000
Common stock, price per share	$ 4.585	$ 5.5					$ 4.585
At-the-Market Sales Agreement [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued				0			200,000
Gross proceeds							$ 1,500,000
Subscription Agreements Executed In November Two Thousand Twenty Two [Member] | November 2022 Private Placement [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price per unit of warrant			$ 4.5
Percentage of exercise price exceeds in measurement period			300.00%
Average daily trading volume for measurement period			$ 500,000
Number of required consecutive days weighted average trading price for cancelation or recall of warrants			30 days
Number of units issued in financing			4,093,141
Common stock, price per unit			$ 4.625
Description of stock units issued				each unit consisting of two shares of common stock and a common stock purchase warrant to purchase one share of common stock, or the November 2022 Warrants.
Maximum beneficial ownership percentage of outstanding common stock for warrant holders			19.99%
Proceeds from financing			$ 17,900,000
Pre Funded Warrants [Member] | Private Placement [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price per unit of warrant	0.001						$ 0.001
Pre Funded Warrants [Member] | Private Placement [Member] | Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price per unit of warrant	$ 4.906						$ 4.906
Warrants to purchase common stock	13,086,151						13,086,151

XML

Common Stock - Open Market Sale Agreement - Additional Information (Detail) - Jefferies Open Market Sales Agreement [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Sep. 27, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock aggregate maximum offering amount		$ 50.0
Common stock, shares issued	0
Common stock available for sale under offering	$ 50.0

XML

Common Stock - Stock Options - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for options currently outstanding	2,139,414	1,461,980
Number of shares granted	677,500
Weighted average fair value of stock options granted	$ 3.35
Unrecognized compensation expense related to stock options granted	$ 2,400,000	$ 3,400,000
Aggregate intrinsic value of options exercised	0	$ 0	$ 0
Aggregate intrinsic value of the outstanding options	0
Aggregate intrinsic value of the exercisable outstanding options	$ 0
Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period, restricted stock awards	1 year 11 months 26 days	1 year 11 months 26 days
Restricted Stock Unit [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted shares reserved for issuance under incentive plan	1,115,750
Award vesting period	4 years
Weighted-average period, restricted stock awards	9 months
2018 Equity Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for issuance under incentive plan	31,761
Award expiration period	10 years
2018 Equity Incentive Plan [Member] | Minimum [Member] | Employees and Consultants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	3 years
2018 Equity Incentive Plan [Member] | Minimum [Member] | Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	1 year
2018 Equity Incentive Plan [Member] | Maximum [Member] | Employees and Consultants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	4 years
2018 Equity Incentive Plan [Member] | Maximum [Member] | Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	3 years
2018 Equity Incentive Plan [Member] | Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for issuance under incentive plan	2,667,416
Common shares reserved for options currently outstanding	1,519,905
New Employee Inducement Grants [Member] | Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for options currently outstanding	135,000
Award expiration period	10 years
Number of shares granted	0
2017 Equity Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award expiration period	10 years
2017 Equity Incentive Plan [Member] | Minimum [Member] | Employees and Consultants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	3 years
2017 Equity Incentive Plan [Member] | Minimum [Member] | Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	1 year
2017 Equity Incentive Plan [Member] | Maximum [Member] | Employees and Consultants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	4 years
2017 Equity Incentive Plan [Member] | Maximum [Member] | Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	3 years
2017 Equity Incentive Plan [Member] | Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for issuance under incentive plan	13,156
2010 Performance Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award expiration period	10 years
2010 Performance Incentive Plan [Member] | Minimum [Member] | Employees and Consultants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	3 years
2010 Performance Incentive Plan [Member] | Minimum [Member] | Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	1 year
2010 Performance Incentive Plan [Member] | Maximum [Member] | Employees and Consultants [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	4 years
2010 Performance Incentive Plan [Member] | Maximum [Member] | Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	3 years
2010 Performance Incentive Plan [Member] | Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for issuance under incentive plan	103
2023 Non Employee Director Equity Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for issuance under incentive plan	9,750
Award expiration period	10 years
2023 Non Employee Director Equity Incentive Plan [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	1 year
2023 Non Employee Director Equity Incentive Plan [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	3 years
2023 Non Employee Director Equity Incentive Plan [Member] | Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for issuance under incentive plan	300,000
Common shares reserved for options currently outstanding	290,250
2024 Equity Inducement Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for issuance under incentive plan	901,000
Award expiration period	10 years
2024 Equity Inducement Plan [Member] | Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for issuance under incentive plan	1,250,000
Common shares reserved for options currently outstanding	181,000
2024 Equity Inducement Plan [Member] | Restricted Stock Unit [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares reserved for options currently outstanding	168,000

XML

Common Stock - Summary of Fair Value of Option Awards (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Risk-free interest rates	4.00%	3.60%
Expected dividend yield	0.00%	0.00%
Expected life	5 years 8 months 26 days	5 years 9 months
Expected volatility	87.40%	115.19%
Forfeiture rate	0.00%	0.00%

XML

Common Stock - Summary of Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation	$ 5,325	$ 3,439	$ 3,270
Research and development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation	1,736	1,122
General and administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation	$ 3,589	$ 2,317

XML

Common Stock - Summary of Stock Options Activity (Detail)	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Share-Based Payment Arrangement [Abstract]
Number of Optioned Common Shares, Beginning Balance | shares	1,461,980
Number of Optioned Common Shares, Granted | shares	677,500
Number of Optioned Common Shares, Expired | shares	(66)
Number of Optioned Common Shares, Ending Balance | shares	2,139,414
Weighted Average Exercise Price, Beginning Balance | $ / shares	$ 12.12
Weighted Average Exercise Price, Granted | $ / shares	4.54
Weighted Average Exercise Price, Expired | $ / shares	17,565.33
Weighted Average Exercise Price, Ending Balance | $ / shares	$ 9.18

XML

Common Stock - Summary of Stock Options Outstanding Regarding Number of Common Shares Issuable upon Exercise of Outstanding Options (Detail)	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Number of Outstanding Options | shares	2,139,414
Exercise Price Range, Weighted Average Exercise Price	$ 9.18
Exercise Price Range, Weighted Average Remaining Contractual Life	7 years 9 months 10 days
Range one [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 4.52
Exercise Price Range, Upper Range Limit	$ 4.52
Exercise Price Range, Number of Outstanding Options | shares	211,000
Exercise Price Range, Weighted Average Exercise Price	$ 4.52
Exercise Price Range, Weighted Average Remaining Contractual Life	9 years 11 months 4 days
Range two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 4.53
Exercise Price Range, Upper Range Limit	$ 4.54
Exercise Price Range, Number of Outstanding Options | shares	25,000
Exercise Price Range, Weighted Average Exercise Price	$ 4.53
Exercise Price Range, Weighted Average Remaining Contractual Life	8 years 2 months 12 days
Range three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 4.55
Exercise Price Range, Upper Range Limit	$ 4.72
Exercise Price Range, Number of Outstanding Options | shares	466,500
Exercise Price Range, Weighted Average Exercise Price	$ 4.55
Exercise Price Range, Weighted Average Remaining Contractual Life	9 years 21 days
Range four [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 4.73
Exercise Price Range, Upper Range Limit	$ 4.99
Exercise Price Range, Number of Outstanding Options | shares	409,750
Exercise Price Range, Weighted Average Exercise Price	$ 4.9
Exercise Price Range, Weighted Average Remaining Contractual Life	8 years 25 days
Range five [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 5
Exercise Price Range, Upper Range Limit	$ 5.99
Exercise Price Range, Number of Outstanding Options | shares	156,750
Exercise Price Range, Weighted Average Exercise Price	$ 5.88
Exercise Price Range, Weighted Average Remaining Contractual Life	8 years 2 months 1 day
Range six [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 6
Exercise Price Range, Upper Range Limit	$ 7.89
Exercise Price Range, Number of Outstanding Options | shares	167,200
Exercise Price Range, Weighted Average Exercise Price	$ 6.68
Exercise Price Range, Weighted Average Remaining Contractual Life	7 years 6 months 7 days
Range seven [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 7.9
Exercise Price Range, Upper Range Limit	$ 8.43
Exercise Price Range, Number of Outstanding Options | shares	226,250
Exercise Price Range, Weighted Average Exercise Price	$ 8.26
Exercise Price Range, Weighted Average Remaining Contractual Life	7 years 3 days
Range eight [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 8.44
Exercise Price Range, Upper Range Limit	$ 11.65
Exercise Price Range, Number of Outstanding Options | shares	189,630
Exercise Price Range, Weighted Average Exercise Price	$ 10.61
Exercise Price Range, Weighted Average Remaining Contractual Life	5 years 6 months 25 days
Range nine [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 11.66
Exercise Price Range, Upper Range Limit	$ 20.74
Exercise Price Range, Number of Outstanding Options | shares	238,400
Exercise Price Range, Weighted Average Exercise Price	$ 13.07
Exercise Price Range, Weighted Average Remaining Contractual Life	6 years 25 days
Range ten [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 20.75
Exercise Price Range, Upper Range Limit	$ 4,158
Exercise Price Range, Number of Outstanding Options | shares	48,934
Exercise Price Range, Weighted Average Exercise Price	$ 110.49
Exercise Price Range, Weighted Average Remaining Contractual Life	3 years 8 months 15 days

XML

Common Stock - Summary of Stock Options Outstanding Regarding Number of Common Shares Issuable upon Exercise of Vested Options (Detail)	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Number of Vested Options | shares	1,291,953
Exercise Price Range, Weighted Average Vested Price	$ 12.05
Exercise Price Range, Weighted Average Remaining Contractual Term	6 years 11 months 23 days
Range one [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 4.52
Exercise Price Range, Upper Range Limit	4.52
Range two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	4.53
Exercise Price Range, Upper Range Limit	$ 4.54
Exercise Price Range, Number of Vested Options | shares	10,937
Exercise Price Range, Weighted Average Vested Price	$ 4.53
Exercise Price Range, Weighted Average Remaining Contractual Term	8 years 2 months 12 days
Range three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 4.55
Exercise Price Range, Upper Range Limit	$ 4.72
Exercise Price Range, Number of Vested Options | shares	50,000
Exercise Price Range, Weighted Average Vested Price	$ 4.55
Exercise Price Range, Weighted Average Remaining Contractual Term	9 years 21 days
Range four [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 4.73
Exercise Price Range, Upper Range Limit	$ 4.99
Exercise Price Range, Number of Vested Options | shares	295,499
Exercise Price Range, Weighted Average Vested Price	$ 4.9
Exercise Price Range, Weighted Average Remaining Contractual Term	8 years 25 days
Range five [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 5
Exercise Price Range, Upper Range Limit	$ 5.99
Exercise Price Range, Number of Vested Options | shares	92,064
Exercise Price Range, Weighted Average Vested Price	$ 5.88
Exercise Price Range, Weighted Average Remaining Contractual Term	8 years 1 month 28 days
Range six [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 6
Exercise Price Range, Upper Range Limit	$ 7.89
Exercise Price Range, Number of Vested Options | shares	148,734
Exercise Price Range, Weighted Average Vested Price	$ 6.62
Exercise Price Range, Weighted Average Remaining Contractual Term	7 years 7 months 2 days
Range seven [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 7.9
Exercise Price Range, Upper Range Limit	$ 8.43
Exercise Price Range, Number of Vested Options | shares	221,353
Exercise Price Range, Weighted Average Vested Price	$ 8.26
Exercise Price Range, Weighted Average Remaining Contractual Term	7 years 3 days
Range eight [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 8.44
Exercise Price Range, Upper Range Limit	$ 11.65
Exercise Price Range, Number of Vested Options | shares	189,630
Exercise Price Range, Weighted Average Vested Price	$ 10.61
Exercise Price Range, Weighted Average Remaining Contractual Term	5 years 6 months 25 days
Range nine [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 11.66
Exercise Price Range, Upper Range Limit	$ 20.74
Exercise Price Range, Number of Vested Options | shares	234,802
Exercise Price Range, Weighted Average Vested Price	$ 13.07
Exercise Price Range, Weighted Average Remaining Contractual Term	6 years 25 days
Range ten [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 20.75
Exercise Price Range, Upper Range Limit	$ 4,158
Exercise Price Range, Number of Vested Options | shares	48,934
Exercise Price Range, Weighted Average Vested Price	$ 110.49
Exercise Price Range, Weighted Average Remaining Contractual Term	3 years 8 months 15 days

XML

Common Stock - Restricted Stock Unit Awards - Additional Information (Detail) - Restricted Stock Unit [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	4 years
Stock based compensation expense	$ 2.0	$ 0.9	$ 1.1
Total unrecognized compensation expense related to the Company's restricted stock unit awards	$ 2.3
Weighted-average period, restricted stock awards	9 months

XML

Common Stock - Summary of Restricted Stock Unit Award Activity (Detail) - Restricted Stock Unit [Member]	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Beginning Balance | shares	507,875
Number of Shares, Granted | shares	889,000
Number of Shares, Released | shares	(113,125)
Number of Shares, Ending Balance | shares	1,283,750
Weighted-Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 5.65
Weighted-Average Grant Date Fair Value, Granted | $ / shares	4.54
Weighted-Average Grant Date Fair Value, Released | $ / shares	8.26
Weighted-Average Grant Date Fair Value, Ending Balance | $ / shares	$ 4.65

XML

Common Stock - Employee Stock Purchase Plan - Additional Information (Detail) - Employee Stock Purchase Plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of shares authorized to purchased	507,627
Stock based compensation expense	$ 0.2	$ 0.0

XML

Common Stock - Summary of Outstanding Warrants (Detail)	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Warrants Issued in May 2019 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable | shares	60,000
Exercise price per Share | $ / shares	$ 90
Expiration Date	2025-05
Warrants Issued in April 2020 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable | shares	182,461
Exercise price per Share | $ / shares	$ 7.24
Expiration Date	2025-04
Warrants Issued in April 2020 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable | shares	24,375
Exercise price per Share | $ / shares	$ 7.32
Expiration Date	2025-04
Warrants Issued in April 2020 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable | shares	25,270
Exercise price per Share | $ / shares	$ 7.59
Expiration Date	2025-04
Pre-Funded Warrants Issued in August 2020 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable | shares	142,857
Exercise price per Share | $ / shares	$ 0.001
Warrants Issued in December 2020 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable | shares	50,000
Exercise price per Share | $ / shares	$ 8.75
Expiration Date	2025-12
Warrants Issued in November 2022 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable | shares	4,093,141
Exercise price per Share | $ / shares	$ 4.5
Expiration Date	2029-11
Warrants Issued in February 2024 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable | shares	13,086,151
Exercise price per Share | $ / shares	$ 4.906

XML

Common Stock - Stock Warrants - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Feb. 29, 2024
Class of Warrant or Right [Line Items]
Proceeds from exercise of warrants	$ 682	$ 227	$ 24
Percentage of voting power	50.00%
Warrants Issued in December 2019 [Member]
Class of Warrant or Right [Line Items]
Warrants to purchase common stock	295,126	98,333
Exercise price per unit of warrant	$ 2.31	$ 2.31
Proceeds from exercise of warrants	$ 700	$ 200
Pre Funded Warrants
Class of Warrant or Right [Line Items]
Percentage of outstanding shares of common stock	50.00%
Pre Funded Warrants | Private Placement [Member]
Class of Warrant or Right [Line Items]
Exercise price per unit of warrant				$ 0.001
Pre Funded Warrants | Private Placement [Member] | Common Stock [Member]
Class of Warrant or Right [Line Items]
Warrants to purchase common stock				13,086,151
Exercise price per unit of warrant				$ 4.906

XML

Common Stock - Computation of Basic and Diluted Net Loss Attributable to Common Shareholders Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Numerator
Net Income (Loss)	$ (39,827)	$ (29,815)	$ (42,350)
Denominator
Weighted average number of common shares outstanding, basic	32,071,146	19,827,354	10,593,034
Net loss per common share, basic	$ (1.24)	$ (1.5)	$ (4)
Weighted average number of common shares outstanding, diluted	32,071,146	19,827,354	10,593,034
Net loss per common share, diluted	$ (1.24)	$ (1.5)	$ (4)

XML

Common Stock - Loss Per Common Share - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2024 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Anti-dilutive securities excluded from earning per share computation	21,087,419,000,000
Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Anti-dilutive securities excluded from earning per share computation	2,139,414
Restricted Stock Unit [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Anti-dilutive securities excluded from earning per share computation	1,283,750
Warrant [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Anti-dilutive securities excluded from earning per share computation	17,664,255

XML

Commitments and Contingencies - Summary of Contractual Obligations (Detail) $ in Thousands	Dec. 31, 2024 USD ($)
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Total	$ 131
Less than 1 year	63
1-3 years	68
Vancouver Office Operating Lease [Member]
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]
Total	131
Less than 1 year	63
1-3 years	$ 68

XML

Commitments and Contingencies - Additional Information (Detail)				12 Months Ended
	Dec. 09, 2024	Dec. 16, 2022	Nov. 19, 2018 USD ($) ft²	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Other Commitments [Line Items]
Consolidated rent and facilities expense				$ 100,000	$ 100,000	$ 100,000
Indemnification obligations				0
Expenses related to indemnification issues				$ 0
Vancouver Office Operating Lease [Member] | Vancouver, British Columbia [Member]
Other Commitments [Line Items]
Lease agreement commencement date	Feb. 01, 2025	Feb. 01, 2023	Feb. 01, 2019
Annual rent expense			$ 100,000
Area of office space leased | ft²			2,367
Operating lease, term of contract			4 years
Lessee, Operating Lease, Existence of Option to Extend [true false]		true
Operating lease, extension term	2 years	2 years

XML

Commitments and Contingencies - Summary of Future Minimum Annual Lease Payments (Detail) - Vancouver Office Operating Lease [Member] $ in Thousands	Dec. 31, 2024 USD ($)
Operating Leased Assets [Line Items]
2025	$ 63
2026	63
2027	5
Total	$ 131

XML

Commitments and Contingencies - Summary of Other Information Related to Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 59	$ 57
Right-of-use assets obtained in exchange for lease obligations:
Weighted Average Remaining Lease Term Operating leases	2 years 29 days	1 year 29 days
Weighted Average Discount Rate Operating leases	8.98%	8.98%