10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

(Mark one)

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

For the quarterly period ended March 31, 2023

Or

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

For the transition period from                 to               

Commission file number 001-37558

Nabriva Therapeutics plc

(Exact name of registrant as specified in its charter)

Ireland	Not applicable
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
25-28 North Wall Quay
IFSC, Dublin 1, Ireland	Not applicable
(Address of principal executive offices)	(Zip Code)

+353 1 649 2000

(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 each exchange on which registered
Ordinary Shares, nominal value $0.01 per share	NBRV	The Nasdaq Capital Market

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 is a shell company (as defined in Rule12b-2 of the Exchange Act). Yes  ☐  No  ⌧

As of April 30, 2023, the registrant had 3,201,456 ordinary shares outstanding.

NABRIVA THERAPEUTICS plc

INDEX TO REPORT ON FORM 10-Q

		Page
	PART I — FINANCIAL INFORMATION
Item 1:	Financial Statements	5
	Consolidated Balance Sheets as of March 31, 2023 and December 31, 2022 (unaudited)	5
	Consolidated Statements of Operations for the three months ended March 31, 2023 and 2022 (unaudited)	6
	Consolidated Statements of Changes in Stockholders’ Equity (Deficit) for the three months ended March 31, 2023 and 2022 (unaudited)	7
	Consolidated Statements of Cash Flows for the three months ended March 31, 2023 and 2022 (unaudited)	8
	Notes to the Unaudited Consolidated Financial Statements	9
Item 2:	Management’s Discussion and Analysis of Financial Condition and Results of Operations	23
Item 3:	Quantitative and Qualitative Disclosures About Market Risk	30
Item 4:	Controls and Procedures	31
	PART II — OTHER INFORMATION
Item 1:	Legal Proceedings	32
Item 1A:	Risk Factors	32
Item 2:	Unregistered Sales of Equity Securities and Use of Proceeds	32
Item 3:	Defaults Upon Senior Securities	32
Item 4:	Mine Safety Disclosures	32
Item 5:	Other Information	32
Item 6:	Exhibits	33
SIGNATURES		34

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q contains forward-looking statements that involve substantial risks and uncertainties. All statements contained in this Quarterly Report, other than statements of historical fact, including statements regarding our strategy, future operations, future financial position, future revenues, projected costs, prospects, plans, and objectives of management, are forward-looking statements. The words “anticipate,” “around,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “target,” “potential,” “will,” “would,” “could,” “should,” “continue,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. The forward-looking statements in this report include, among other things, statements about:

● our ability to successfully execute a planned orderly wind down;

● our ability to identify, assess and execute a strategic transaction;

● our ability to preserve cash in order to adequately fund an orderly wind down of our operations;

● our expectations regarding the value or recovery that may be available to our shareholders and other stakeholders as part of a wind down process;

● our ability to successfully commercialize XENLETA (lefamulin) for the treatment of community-acquired bacterial pneumonia, or CABP, including the availability of and ease of access to XENLETA through hospital formularies, managed care plans and major U.S. specialty distributors;

● our expectations regarding how far into the future our cash on hand and anticipated revenues from product sales will fund our ongoing operations and the continued availability and cost of capital to sustain our operations on a longer term basis or at all;

● our ability to meet the minimum listing requirements for listing on The Nasdaq Capital Market;

● the potential extent of revenues from future sales of SIVEXTRO and XENLETA;

● our ability to resolve the matters set forth in the Complete Response Letter we received from the U.S. Food and Drug Administration, or FDA, in connection with our New Drug Application, or NDA, for CONTEPO for the treatment of complicated urinary tract infections, or cUTIs, including acute pyelonephritis;

● the timing of the resubmission of the NDA for CONTEPO for the treatment of cUTIs and potential marketing approval of CONTEPO and other product candidates, including the completion of any post marketing requirements with respect to XENLETA for CABP and any other product candidates we may develop or obtain;

● our ability to successfully maintain inventory levels to satisfy product demand, as well as limit the unrealizable value of inventory based on historical usage, known trends, inventory age and market conditions;

● our ability to satisfy payments and comply with the terms of the Hovione Supply Agreement for the long-term commercial supply of the active pharmaceutical ingredient for XENLETA;

● the future development and commercialization of XENLETA in the greater China region, Canada and Eastern Europe;

● our expectations with respect to milestone payments pursuant to the Agreement and Plan of Merger, dated July 23, 2018, and expectations with respect to potential advantages of CONTEPO or any other product

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candidate that we acquired in connection with the acquisition of Zavante Therapeutics, Inc., or the Acquisition;

● our ability to establish and maintain arrangements for manufacture of our product candidates;

● the potential advantages of SIVEXTRO, XENLETA, CONTEPO, and our other product candidates;

● our estimates regarding the market opportunities for SIVEXTRO, XENLETA, CONTEPO, and our other product candidates;

● the rate and degree of market acceptance and clinical benefit of SIVEXTRO for acute bacterial skin and skin structure infections, XENLETA for CABP, CONTEPO for cUTI and our other product candidates, if approved;

● our ability to maintain collaborations including additional licensing agreements for XENLETA outside the United States, Canada, the greater China region, Bulgaria, Croatia, Czechia, Greece, Hungary, Poland, Romania, Slovakia and Slovenia;

● the potential benefits under our license agreements with Sumitomo Pharmaceuticals (Suzhou), or the China Region License Agreement, and with Sunovion Pharmaceuticals Canada Inc., or the Sunovion License Agreement, and with Er-Kim Pharmaceuticals, or the Er-Kim License Agreement;

● our future intellectual property position;

● our ability to maintain the level of our expenses consistent with our internal budgets and forecasts;

● competitive factors;

● risks of relying on external parties such as contract manufacturing and sales organizations;

● compliance with current or prospective governmental regulation;

● general economic and market conditions;

● our ability to attract and retain qualified employees and key personnel;

● our business and business relationships, including with our employees and suppliers;

● our expectations about the impact of the COVID-19 pandemic on our business operations, ongoing clinical trials and regulatory matters, including the ability of regulatory authorities to operate;

● our ability to satisfy milestone, royalty and transaction revenue payments pursuant to the Stock Purchase Agreement between our wholly owned subsidiary Zavante Therapeutics, Inc. and SG Pharmaceuticals, Inc.; and

● other risks and uncertainties, including those described in the ‘‘Risk Factors’’ section of our Annual Report on Form 10-K for the year ended December 31, 2022.

We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements we make.

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You should refer to the “Risk Factor Summary” and “Risk Factors” sections of our Annual Report on Form 10-K for the year ended December 31, 2022 for a discussion of important factors that we believe could cause actual results or events to differ materially from the forward-looking statements that we make. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures or investments we may make. We do not assume any obligation to update any forward-looking statements, except as required by applicable law.

Throughout this Quarterly Report on Form 10-Q, unless the context requires otherwise, all references to “Nabriva,” “the Company,” “we,” “our,” “us” or similar terms refer to Nabriva Therapeutics plc, together with its consolidated subsidiaries.

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PART I

ITEM 1.  FINANCIAL STATEMENTS

NABRIVA THERAPEUTICS plc

Consolidated Balance Sheets (unaudited)

	As of		As of
(in thousands, except share data)	March 31, 2023		December 31, 2022
Assets
Current assets:
Cash and cash equivalents	$	1,798	$	12,414
Restricted cash		123		123
Accounts receivable, net and other receivables		10,510		6,742
Inventory		9,027		9,676
Prepaid expenses		2,236		2,149
Total current assets		23,694		31,104
Property and equipment, net		263		280
Intangible assets, net		2		3
Other non-current assets		379		378
Total assets	$	24,338	$	31,765
Liabilities and stockholders´ equity (deficit)
Current liabilities:
Current portion of long-term debt	$	197	$	4,833
Accounts payable		6,978		5,431
Accrued expense and other current liabilities		20,823		17,341
Total current liabilities		27,998		27,605
Non-current liabilities:
Long-term debt		345		388
Other non-current liabilities		352		479
Total non-current liabilities		697		867
Total liabilities		28,695		28,472
Commitments and contingencies (Note 11)
Stockholders’ equity (deficit):
Ordinary shares, nominal value $0.01, 12,000,000 ordinary shares authorized at March 31, 2023; 3,201,495 and 3,201,417 issued and outstanding at March 31, 2023 and December 31, 2022, respectively		32		32
Preferred shares, nominal value $0.01, 100,000,000 shares authorized at March 31, 2023; None issued and outstanding		—		—
Additional paid in capital		657,145		656,095
Accumulated other comprehensive income		27		27
Accumulated deficit		(661,561)		(652,861)
Total stockholders’ equity (deficit)		(4,357)		3,293
Total liabilities and stockholders’ equity (deficit)	$	24,338	$	31,765

The accompanying notes form an integral part of these consolidated financial statements.

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NABRIVA THERAPEUTICS plc

Consolidated Statements of Operations (unaudited)

	Three Months Ended
	March 31,
(in thousands, except share and per share data)	2023		2022
Revenues:
Product revenue, net	$	7,561	$	7,040
Collaboration revenue		29		629
Research premium and grant revenue		—		351
Total revenues		7,590		8,020
Operating expenses:
Cost of revenues		(4,438)		(3,361)
Research and development expenses		(2,625)		(3,517)
Selling, general and administrative expenses		(9,002)		(12,700)
Total operating expenses		(16,065)		(19,578)
Loss from operations		(8,475)		(11,558)
Other income (expense):
Other income (expense), net		(31)		308
Interest expense, net		(194)		(215)
Loss before income taxes		(8,700)		(11,465)
Income tax expense		—		(354)
Net loss	$	(8,700)	$	(11,819)
Loss per share
Basic and diluted loss per share	$	(2.72)	$	(5.03)
Weighted average number of shares:
Basic and diluted		3,201,495		2,351,766

The accompanying notes form an integral part of these consolidated financial statements.

6

NABRIVA THERAPEUTICS plc

Consolidated Statements of Changes in Stockholders’ Equity (Deficit) (unaudited)

						Accumulated
				Additional		other				Total
	Ordinary shares			paid in		comprehensive		Accumulated		stockholders’
(in thousands)	Number of shares	Amount		capital		income		deficit		equity (deficit)
January 1, 2022	2,269	$	23	$	648,976	$	27	$	(595,676)	$	53,350
Issuance of ordinary shares	198		2		2,219		—		—		2,221
Shares issued in connection with the vesting of restricted stock units	3		—		—		—		—		—
Equity transaction costs	—		—		(127)		—		—		(127)
Stock-based compensation expense	—		—		1,000		—		—		1,000
Net loss	—		—		—		—		(11,819)		(11,819)
March 31, 2022	2,470	$	25	$	652,068	$	27	$	(607,495)	$	44,625
						Accumulated
				Additional		other				Total
	Ordinary shares			paid in		comprehensive		Accumulated		stockholders’
(in thousands)	Number of shares	Amount		capital		income		deficit		equity (deficit)
January 1, 2023	3,201	$	32	$	656,095	$	27	$	(652,861)	$	3,293
Equity transaction costs	—		—		1		—		—		1
Stock-based compensation expense	—		—		1,049		—		—		1,049
Net loss	—		—		—		—		(8,700)		(8,700)
March 31, 2023	3,201	$	32	$	657,145	$	27	$	(661,561)	$	(4,357)

The accompanying notes form an integral part of these consolidated financial statements.

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NABRIVA THERAPEUTICS plc

Consolidated Statements of Cash Flows (unaudited)

	Three Months Ended March 31,
(in thousands)	2023		2022
Cash flows from operating activities
Net loss	$	(8,700)	$	(11,819)
Adjustments to reconcile net loss to net cash used in operating activities:
Non-cash other income, net		(2)		164
Non-cash interest income		—		(1)
Non-cash interest expense		55		93
Depreciation and amortization expense		21		78
Stock-based compensation		999		1,000
Other		314		10
Changes in operating assets and liabilities:
(Increase) decrease in other non-current assets		(1)		1
(Increase) decrease in accounts receivable, net and other receivables and prepaid expenses		(3,855)		2,297
Decrease (increase) in inventory		649		(1,123)
Increase (decrease) in accounts payable		1,547		(2,781)
Increase (decrease) in accrued expenses and other liabilities		3,482		(3,616)
Decrease in deferred revenue		—		(374)
Decrease (increase) in other non-current liabilities		(127)		14
Increase in income tax liabilities		—		187
Net cash used in operating activities		(5,618)		(15,870)
Cash flows from investing activities
Purchases of equipment		(3)		(35)
Other		—		(1)
Net cash used in investing activities		(3)		(36)
Cash flows from financing activities
Proceeds from issuance of ordinary shares and warrants		—		1,643
Proceeds from at-the-market facility		—		595
Repayments of long-term borrowings		(4,853)		—
Equity transaction costs		1		(44)
Net cash (used in) provided by financing activities		(4,852)		2,194
Effects of exchange rate changes on the balance of cash held in foreign currencies		(143)		(164)
Net decrease in cash, cash equivalents and restricted cash		(10,616)		(13,876)
Cash, cash equivalents, and restricted cash at beginning of period		12,537		47,834
Cash, cash equivalents and restricted cash at end of period	$	1,921	$	33,958
Supplemental disclosure of cash flow information:
Interest paid	$	162	$	123
Taxes paid	$	—	$	1
Equity transaction costs included in accounts payable and accrued expenses	$	640	$	795

The accompanying notes form an integral part of these consolidated financial statements.

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NABRIVA THERAPEUTICS plc

Notes to the Unaudited Consolidated Financial Statements

1.           Organization and Business Activities

Nabriva Therapeutics plc, or Nabriva Ireland, together with its wholly owned and consolidated subsidiaries, Nabriva Therapeutics GmbH, or Nabriva Austria, Nabriva Therapeutics US, Inc., Zavante Therapeutics, Inc., or Zavante, and Nabriva Therapeutics Ireland DAC, collectively, Nabriva, or the Company, is a biopharmaceutical company that historically engaged in the commercialization and research and development of novel anti-infective agents to treat serious infections. The Company has the commercial rights to two approved products, SIVEXTRO and XENLETA, as well as one development product candidate, CONTEPO. The Company’s headquarters are located at Alexandra House, Office 225/227, The Sweepstakes, Dublin 4, Ireland.

As part of a plan approved by its board of directors on January 4, 2023 to preserve its cash to adequately fund an orderly wind down of its operations, or the Cash Preservation Plan, the Company has reduced its operations to those necessary to: (i) make SIVEXTRO and XENLETA commercially available to wholesale customers; (ii) identify and explore, with the assistance of Torreya Capital, a range of strategic options, including the sale, license or other disposition of one or more of its assets, technologies or products, including XENLETA and CONTEPO; and (iii) wind down its business. The Company has no intention of resuming any active sales promotion or research and development activities. Also as part of the Cash Preservation Plan, the Company’s board of directors determined to terminate all of the Company’s employees not deemed necessary to execute an orderly wind down of the Company’s operations, including Theodore Schroeder, the Company’s former chief executive officer, and Steven Gelone, the Company’s former president and chief operating officer, each of whom was terminated effective January 15, 2023. The total cost of severance associated with the wind down of our operations is approximately $5.4 million, of which $1.3 million was recorded in research and development expenses and $4.1 million was recorded in the selling, general and administrative expenses in the statement of operations for the three months ended March 31, 2023. As of March 31, 2023 the remaining balance of severance costs associated with the wind down of our operations is approximately $3.8 million which is recorded in accrued expenses and other current liabilities in the consolidated balance sheet.

In January 2023, the Company settled all outstanding balances due to Hercules Capital, Inc., or Hercules, and removed all secured liens on all of its assets. The Company also terminated its agreement with Amplity Health, the contract sales organization responsible for promoting SIVEXTRO and XENLETA and, on January 31, 2023, entered into a letter agreement, or the Letter Agreement, relating to the Company’s Sales Promotion and Distribution Agreement, or the Distribution Agreement, with MSD International GmbH, or MSD, and Merck Sharp & Dohme Corp., or the Supplier, to begin transition responsibility for the promotion and distribution of SIVEXTRO back to Merck & Co. Inc., or Merck, as of June 30, 2023. Although the Company has ceased its active commercialization efforts, the Company expects to continue to make XENLETA and, for the remaining term of the Distribution Agreement, SIVEXTRO commercially available to wholesale customers.

As previously disclosed, the Company has retained Torreya Capital to advise on its exploration of a range of strategic options. While the Company continues to work with Torreya Capital on identifying and evaluating potential strategic options with the goal of maximizing value, the Company is currently focused, as part of its Cash Preservation Plan, on the sale of its existing assets, including XENLETA and CONTEPO. In the event that the Company’s board of directors determines that a liquidation and dissolution of the Company’s business approved by shareholders is the best method to maximize shareholder value, the Company would file proxy materials with the Securities and Exchange Commission and schedule an extraordinary meeting of its shareholders to seek approval of such a plan as required.

Liquidity

Since its inception, the Company has incurred net losses and generated negative cash flows from its operations which has resulted in a significant accumulated deficit to date, as well as total stockholders’ deficit. The Company has financed its operations through the sale of equity securities, convertible and term debt financings and research and development

9

support from governmental grants and proceeds from its licensing agreements and XENLETA and SIVEXTRO product sales. As of March 31, 2023, the Company had cash, cash equivalents and restricted cash of $1.9 million.

The Company follows the provisions of Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, Topic 205-40, Presentation of Financial Statements- Going Concern, which requires management to assess the Company’s ability to continue as a going concern for one year after the date the consolidated financial statements are issued. As a result, the Company’s liquidity condition and its existing financial obligations raise substantial doubt about the Company’s ability to continue as a going concern one year from the date that these financial statements are filed, if it does not monetize at least one of the Company’s assets. These financial statements do not include any adjustments relating to the recovery of the recorded assets or the classification of the liabilities that might be necessary should the Company be unable to continue as a going concern. The Company aims to complete an asset monetization deal; however, completing an asset monetization is not entirely within the Company’s control. Therefore, the Company may not have sufficient cash flows to fund its operations for the next twelve months after the date the consolidated financial statements are issued and therefore, management has concluded that substantial doubt exists about the Company’s ability to continue as a going concern for one year from the date these consolidated financial statements are issued.

While the Company has raised capital in the past, the ability to raise capital in future periods is not considered probable, as defined under the accounting standards. As such, under the requirements of ASC 205-40, management may not consider the potential for future capital raises in their assessment of the Company’s ability to meet its obligations for the next twelve months.

In May 2021, the Company entered into an Open Market Sale Agreement, or the Sale Agreement, with Jefferies, LLC, or Jefferies as agent, pursuant to which the Company may offer and sell ordinary shares, for aggregate gross sale proceeds of up to $50.0 million, from time to time through Jefferies, by any method permitted that is deemed an “at the market offering” as defined in Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended. As of

March 31, 2023, the Company has issued and sold an aggregate of 1,429,729 ordinary shares pursuant to the Sale Agreement and received gross proceeds of $33.9 million and net proceeds of $32.5 million, after deducting commissions to Jefferies and other offering expenses. From April 1, 2023 and through the date of this filing, the Company did not sell any shares under the Sale Agreement.

In September 2021, the Company entered into a purchase agreement, or Purchase Agreement, with Lincoln Park Capital Fund, LLC, or Lincoln Park, which, subject to the terms and conditions, provides that the Company has the right to sell to Lincoln Park and Lincoln Park is obligated to purchase up to $23.0 million of its ordinary shares. In addition, under the Purchase Agreement, the Company agreed to issue a commitment fee of 25,298 ordinary shares, or the Commitment Shares, as consideration for Lincoln Park entering into the Purchase Agreement and for the payment of $0.01 per Commitment Share. Under the Purchase Agreement, the Company may from time to time, at its discretion, direct Lincoln Park to purchase on any single business day, or a Regular Purchase, up to (i) 16,000 ordinary shares if the closing sale price of its ordinary shares is not below $0.25 per share on Nasdaq, (ii) 24,000 ordinary shares if the closing sale price of its ordinary shares is not below $50.00 per share on Nasdaq or (iii) 32,000 ordinary shares if the closing sale price of its ordinary shares is not below $75.00 per share on Nasdaq. Notwithstanding the foregoing, the Company may direct Lincoln Park to purchase on any single business day ordinary shares with a purchase price equal to or greater than $200,000 irrespective of the number of ordinary shares required to approximate that amount. In addition to Regular Purchases, the Company may also direct Lincoln Park to purchase other amounts as accelerated purchases or as additional accelerated purchases on the terms and subject to the conditions set forth in the Purchase Agreement. In any case, Lincoln Park’s commitment in any single Regular Purchase may not exceed $2.5 million absent a mutual agreement to increase such amount. As of March 31, 2023, the Company has issued and sold an aggregate of 320,000 ordinary shares pursuant to the Purchase Agreement and received net proceeds of $4.6 million. From April 1, 2023 and through the date of this filing, the Company did not sell any shares under the Purchase Agreement.

Based on its current operating plans, the Company expects that its existing cash, cash equivalents and restricted cash as of the filing date of this Quarterly Report on Form 10-Q together with its anticipated SIVEXTRO and XENLETA commercial sales receipts will be sufficient to enable the Company to fund its operating expenses, debt service obligations and capital expenditure requirements through the end of June 2023. The Company has based this

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estimate on assumptions that may prove to be wrong, and the Company could use its capital resources sooner than expected. This estimate assumes, among other things, that the Company does not obtain any additional funding through grants and clinical trial support, collaboration agreements or from the monetization of one or more of its assets. The consolidated financial statements have been prepared assuming the Company will continue as a going concern, which contemplates the continuity of operations, the realization of assets and the satisfaction of liabilities and commitments in the normal course of business.

2.            Summary of Significant Accounting Policies

Basis of Preparation

The unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America, or US GAAP, for interim financial information, and US Securities and Exchange Commission, or SEC, regulations for quarterly reporting. The unaudited consolidated financial statements include the accounts of Nabriva Therapeutics plc and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

The accompanying consolidated financial information as of March 31, 2023 and for the three months ended March 31, 2023 and 2022 are unaudited. The December 31, 2022 balance sheet was derived from audited consolidated financial statements but does not include all disclosures required by US GAAP. The interim unaudited consolidated financial statements have been prepared on the same basis as the annual audited consolidated financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for the fair statement of the Company’s financial position as of March 31, 2023 and results of operations for the three months ended March 31, 2023 and 2022. The financial data and other information disclosed in these notes related to the three ended March 31, 2023 and 2022 are not necessarily indicative of the results to be expected for the year ending December 31, 2023, any other interim periods or any future year or period. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for the year ended December 31, 2022 contained in the Company’s Annual Report on Form 10-K, as filed with the SEC on April 17, 2023.

The Company’s significant accounting policies are described in Note 2 of the notes to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022, as filed with the SEC on April 17, 2023. Since the date of those financial statements, there have been no changes to the Company’s significant accounting policies.

Fair Value Measurement

As of March 31, 2023, and December 31, 2021, the Company did not hold any financial instruments as liabilities that were held at fair value. The Company believes that the carrying value of its long-term debt approximates fair value based on current interest rates. Receivables and accounts payable are carried at their historical cost which approximates fair value due to their short-term nature.

Reverse Stock Split

On September 16, 2022, the Company filed an Amended and Restated Memorandum and Articles of Association of the Company with the Irish Companies Registration Office and effected, a one-for-twenty five reverse stock split, or the Reverse Stock Split, of the Company’s ordinary shares. As a result of the Reverse Stock Split, every twenty five ordinary shares in the authorized and unissued and authorized and issued share capital of the Company were consolidated into one ordinary share. No fractional shares were issued in connection with the Reverse Stock Split. Shareholders who would otherwise be entitled to a fractional ordinary share were instead entitled to receive a proportional cash payment. All ordinary share, per share and related information presented in the consolidated financial statements and notes has been retroactively adjusted to reflect the Reverse Stock Split.

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Recently Adopted Accounting Pronouncements

In June 2016, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) No. 2016-13, Financial Instruments-Credit Losses: Measurement of Credit Losses on Financial Instruments, or ASU 2016-13, which replaces the incurred loss impairment methodology under current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. ASU 2016-13 was subsequently updated by ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments, to clarify that entities should include recoveries when estimating the allowance for credit losses. This guidance was effective for the Company starting in fiscal year 2023. The Company adopted ASU 2016-13 as of January 1, 2023, which did not have a material impact on its financial statements.

3.            Inventory

Inventory is stated at the lower of cost or net realizable value. Inventory is valued on a first-in, first-out basis and consists primarily of material costs, third-party manufacturing costs, and related transportation costs along the Company’s supply chain. The Company capitalizes inventory upon regulatory approval when, based on management’s judgment, future commercialization is considered probable and the future economic benefit is expected to be realized; otherwise, such costs are recorded as research and development expense. Costs of drug product to be consumed in any current or future clinical trials will continue to be recognized as research and development expense and costs of sample inventory is recorded as selling, general and administrative expense. The Company reviews inventories for realization on a quarterly basis and records provisions for estimated excess, slow-moving and obsolete inventory, as well as inventory with a carrying value in excess of net realizable value when necessary.

As a result of the Company’s intention to wind down operations, the Company made an assessment of the net realizable value of XENLETA inventory as of March 31, 2023 and December 31, 2022, based mainly on the potential to monetize any inventory that may be included in an asset sale of XENLETA. The Company will continue to make XENLETA commercially available in the US during the transition period as the Company prepares to wind down operations. In conjunction with XENLETA, the Company adjusted the value of inventory and prepaid inventory as of December 31, 2022 with an adjustment of $5.6 million. The Company is in ongoing discussions to sell the product rights of XENLETA, its related inventory, and potentially assign certain contractual commitments. SIVEXTRO finished goods are expected to sell through during the remainder of the Transition Services Agreement with Merck & Co through June 30, 2023.

Inventory reported at March 31, 2023 and December 31, 2022 consisted of the following:

		As of		As of
		March 31,		December 31,
(in thousands)		2023		2022
XENLETA raw materials	$	916	$	916
XENLETA work in process		6,003		4,658
XENLETA finished goods		632		640
Total XENLETA		7,551		6,214
SIVEXTRO finished goods		1,476		3,462
Total inventory	$	9,027	$	9,676

As of December 31, 2022, the Company had $0.9 million of prepaid inventory of XENLETA included in prepaid expenses in the consolidated balance sheet.

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4.           Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities include the following:

		As of March 31,		As of December 31,
(in thousands)		2023		2022
Research and development related costs	$	363	$	707
Payroll and related costs		5,123		1,737
Accounting, tax and audit services		568		552
Manufacturing and inventory		8,628		8,113
Product returns		774		784
Government rebates		2,234		2,028
Other accrued gross to net		2,194		2,129
Other		939		1,291
Total accrued expenses and other current liabilities	$	20,823	$	17,341

5.           Debt

In December 2018, the Company entered into a loan agreement, the Loan Agreement, by and among the Company, Nabriva Therapeutics Ireland DAC, and certain other subsidiaries of the Company and Hercules Capital, Inc., or Hercules, pursuant to which a term loan of up to an aggregate principal amount of $75.0 million was available to the Company. The Loan Agreement initially provided for an initial term loan advance of $25.0 million, which was funded in December 2018, and, at the Company’s option and subject to the occurrence of certain funding conditions, several additional tranches of which $10.0 million became available upon the approval by the FDA of the NDA for XENLETA, which was drawn down.

Prior to repayment, the term loan bore interest at an annual rate equal to the greater of 9.80% or 9.80% plus the prime rate of interest minus 5.50%. Effective September 22, 2022 the prime rate increased to 6.25%, which increased the interest on the loan with Hercules to 10.55%. The Loan Agreement provided for interest-only payments through July 1, 2021 and repayment of the outstanding principal balance of the term loan thereafter in monthly installments through June 1, 2023, or the Maturity Date. In addition, the Company was required to pay a fee of 6.95% of the aggregate amount of advances under the Loan Agreement at the Maturity Date, or the End of Term Fee. At the Company’s option, the Company was entitled to elect to prepay any portion of the outstanding term loan that is greater than or equal to $5.0 million by paying such portion of the principal balance and all accrued and unpaid interest thereon plus a prepayment charge equal to the following percentage of the principal amount being prepaid, or the Prepayment Fee: (i) 3.0% if the term loan was prepaid during the first 12 months following the initial closing, (ii) 2.0% if the term loan was prepaid after 12 months following the initial closing but before 24 months following the initial closing and (iii) 1.0% if the term loan was prepaid any time thereafter but prior to the Maturity Date.

On March 11, 2020, the Company entered into an amendment, or the Third Amendment, to its Loan Agreement with Hercules. Pursuant to the Third Amendment, the Company repaid $30.0 million of the $35.0 million in aggregate principal amount of debt outstanding under the Loan Agreement, or the Prepayment. The Company determined to enter into the Third Amendment following the effectiveness of a performance covenant in February 2020 under which it became obligated to either (1) achieve 80% of its net product revenue sales target over a trailing six-month period, or (2) maintain an amount of cash and cash equivalents in accounts pledged to Hercules plus a specified amount of eligible accounts receivables equal to the greater of the amount outstanding under the Loan Agreement or $40.0 million. Under the Third Amendment, the Company and Hercules agreed to defer the end of term loan charge payment of $2.1 million that would have otherwise become payable on the date of the Prepayment and to reduce the Prepayment Fee with respect to the Prepayment from $600,000 to $300,000 and to defer its payment, in each case, until June 1, 2023 or such earlier date on which all loans under the Loan Agreement were repaid or become due and payable. The Third Amendment also reset the revenue performance covenant to 70% of targeted revenue based on a revised net product revenue forecast and lowered the minimum liquidity requirement to $3.0 million in cash and cash equivalents, in each case, following the Prepayment. The new minimum liquidity requirement would not have applied if CONTEPO received regulatory approval from the FDA and the Company achieved at least 70% of its revised net product revenue targets under the Loan Agreement.

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On June 2, 2021, the Company entered into a further amendment, or the Fourth Amendment, to its Loan and Security Agreement with Hercules. Pursuant to the Fourth Amendment, the date on which the Company was required to commence repaying principal under the Loan Agreement was extended to April 1, 2022. The Company began making interest and principal payments in April 2022. In addition, pursuant to the Fourth Amendment, the minimum liquidity requirement of $3.0 million in cash and cash equivalents would have been waived at any time the Company had recognized $15.0 million of net product revenue during the applicable trailing three months.

The Company incurred $1.3 million of costs in connection with the Loan Agreement which along with the initial fee of $0.7 million paid to Hercules was recorded as debt issuance cost and was being amortized as interest expense using the effective interest method over the term of the loan. The End of Term Fee on the remaining $3.1 million principal balance was being accrued as additional interest expense using the effective interest method over the term of the loan

On January 5, 2023, the Company repaid $4.5 million to Hercules Capital, including principal, accrued and unpaid interest, fees and other expenses, under its loan agreement. Effective at the time of repayment, the Hercules loan agreement was terminated, and Hercules released all security interests held on the assets of the Company and its subsidiaries.

Long-term debt as of March 31, 2023 and December 31, 2022 consisted of the following:

		As of		As of
		March 31,		December 31,
(in thousands)		2023		2022
Term loan payable	$	—	$	2,079
End of term fee		—		2,615
Unamortized debt issuance costs		—		(55)
Carrying value of term loan		—		4,639
Other debt		542		582
Less: Amounts due within one year		(197)		(4,833)
Total long-term debt	$	345	$	388

Maturities of long-term debt as of March 31, 2023 were as follows:

(in thousands)
2023	$	148
2024	$	197
2025	$	197

6.           Revenues

	Three Months Ended
	March 31,
(in thousands)	2023		2022
Product revenue, net	$	7,561	$	7,040
Collaboration revenues		29		629
Research premium and grant revenue		—		351
Total revenues	$	7,590	$	8,020

For the three months ended March 31, 2023 and 2022, SIVEXTRO product revenues, net of gross-to-net accruals and adjustments for returns were $7.6 million and $7.0 million, respectively. The Company´s gross-to-net, or GTN, estimates are based upon information received from external sources (such as written or oral information obtained from the Company´s customers with respect to their period-end inventory levels and sales to end-users during the period), in combination with management’s informed judgments. Due to the inherent uncertainty of these estimates, the

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actual amount incurred may be materially above or below the amount initially estimated when product revenues are originally recorded, then requiring prospective adjustments to the Company’s reported product revenues, net.

The Company sells its products to pharmaceutical wholesalers/distributors (i.e., the Company’s customers). The Company’s wholesalers/distributors in turn sell the Company’s products directly to clinics, hospitals, and private practices. Revenue from the Company’s product sales is recognized as physical delivery of product occurs (when the Company’s customer obtains control of the product), in return for agreed-upon consideration.

Collaboration revenues for the three months ended March 31, 2023 were less than $0.1 million. Collaboration revenues for the three months ended March 31, 2022 included $0.6 million related to the restructured China Region License Agreement, a portion of which is recognized over the estimated period the manufacturing collaboration and regulatory support will be provided to Sumitomo Pharmaceuticals (Suzhou).

7.           Share-Based Payments

Stock Plan Activity

On April 2, 2015, the Company’s shareholders, management board and supervisory board adopted the Stock Option Plan 2015, or the SOP 2015, as amended. Each vested option grants the beneficiary the right to acquire one share in the Company. The vesting period for the options is four years following the grant date. On the last day of the last calendar month of the first year of the vesting period, 25% of the options attributable to each beneficiary are automatically vested. During the second, third and fourth years of the vesting period, the remaining 75% of the options vest on a monthly pro rata basis (i.e. 2.083% per month). Options granted under the SOP 2015 have a term of no more than ten years from the beneficiary’s date of participation. With the approval of the 2017 Share Incentive Plan, there were no further shares available for issuance under the SOP 2015. However, all outstanding awards under SOP 2015 will remain in effect and continue to be governed by the terms of the SOP 2015.

On July 26, 2017, the Company’s board of directors adopted the 2017 Share Incentive Plan, or the 2017 Plan, and the shareholders approved the 2017 Plan at the Company’s Extraordinary General Meeting of Shareholders on September 15, 2017. The 2017 Plan permitted the award of share options (both incentive and nonstatutory options), share appreciation rights, or SARs, restricted shares, restricted share units, or RSUs, and other share-based awards to the Company’s employees, officers, directors, consultants and advisers. The 2017 Plan is administered by the Company’s board of directors. Under the 2017 Plan, the Company granted RSUs which vest over a period of four years with 25% vesting upon the first anniversary of the grant date and on a monthly pro rata basis thereafter over the remaining three years. Lastly, the Company granted RSUs in 2018 to certain employees where vesting of the RSUs is subject to FDA approval of an NDA for CONTEPO. Fifty percent (50%) of each RSU award will vest upon FDA approval, and the remaining fifty percent (50%) will vest on the one-year anniversary of such approval. With the approval of the 2020 Share Incentive Plan, there were no further shares available for issuance under the 2017 Plan. However, all outstanding awards under 2017 Plan will remain in effect and continue to be governed by the terms of the 2017 Plan.

On March 12, 2019, the Company’s board of directors adopted the 2019 Inducement Share Incentive Plan, or the 2019 Inducement Plan and, subject to the adjustment provisions of the 2019 Inducement Plan, reserved 8,000 ordinary shares for issuance pursuant to equity awards granted under the 2019 Inducement Plan. In accordance with Nasdaq Listing Rule 5635(c)(4), awards under the 2019 Inducement Plan may only be made to individuals who were not previously employees or non-employee directors of the Company (or following such individuals’ bona fide period of non-employment with the Company), as an inducement material to the individuals’ entry into employment with the Company. On April 28, 2020, the board of directors resolved not to make any further awards under the 2019 Inducement Plan.

On March 4, 2020, the Company´s board of directors adopted the 2020 Share Incentive Plan, or the 2020 Plan, which was approved by the Company´s shareholders at the 2020 Annual General Meeting of Shareholders in July 2020, or the 2020 AGM. As of the date of the 2020 AGM, the total number of ordinary shares reserved for issuance under the 2020 Plan was for the sum of 37,200 ordinary shares, plus the number of the Company´s ordinary shares that remained available for grant under the 2017 Plan as of immediately prior to the 2020 AGM and the number of ordinary shares

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subject to awards granted under the 2017 Plan and the 2015 SOP, that expire, terminate or are otherwise surrendered, cancelled, forfeited or repurchased by the Company at their original issuance price pursuant to a contractual repurchase right. The 2020 Plan provides for the grant of incentive share options, non-statutory share options, share appreciation rights, restricted share awards, restricted share units, other share-based and cash-based awards and performance awards. Under the 2020 Plan the Company granted RSUs to certain employees that vest in three six-month increments beginning in January 2021 and ending in January 2022. The Company also granted RSUs to certain employees, where vesting of the RSUs was subject to individual performance goals. The Company granted RSUs to certain employees which vest as to 25% of the shares underlying the RSUs in four annual increments. Additionally, the Company granted 280 RSUs to its former Chief Medical Officer and to its former Chief Financial Officer, which vest as to 50% of the shares underlying the RSUs each year over the term of their respective consulting agreements. In January 2022, option awards to purchase 23,680 ordinary shares with an exercise price of $11.25 per share and 11,836 RSUs were granted under the 2020 Plan, which as of the 2022 Annual General Meeting of Shareholders, in the case of the options, have automatically converted to cash-settled share appreciation rights and, in the case of the RSUs, represent the right to receive the economic equivalent of one ordinary share of the Company in cash on the applicable vesting date. As a result, such grants awarded under the 2020 Plan are liability classified. Stock-based compensation expense for liability classified option awards and RSUs under the 2020 Plan was $0.2 million for the three months ended March 31, 2023.

At March 31, 2023, 15,073 ordinary shares excluding the liability classified awards were available for future issuance under the 2020 Plan.

On December 9, 2020, the Company´s board of directors adopted without stockholder approval the 2021 Inducement Share Incentive Plan, or the 2021 Inducement Plan and, subject to the adjustment provisions of the 2021 Inducement Plan, reserved 8,000 ordinary shares for issuance pursuant to equity awards granted under the 2021 Inducement Plan. In accordance with Nasdaq Listing Rule 5635(c)(4), awards under the 2021 Inducement Plan may only be made to individuals who were not previously employees or non-employee directors of the Company (or following such individuals’ bona fide period of non-employment with the company), as an inducement material to the individuals’ entry into employment with the Company. In September 2021, the Company’s board of directors adopted an amendment to the 2021 Inducement Plan that increased the amount of shares reserved for issuance under the plan from 8,000 shares to 20,000 shares. Options and SARs granted will be exercisable at such times and subject to such terms and conditions as the board may specify in the applicable option agreement; provided, however, that no option or SAR will be granted with a term in excess of ten years. The board will also determine the terms and conditions of restricted shares and RSUs, including the conditions for vesting and repurchase (or forfeiture) and the issue price, if any.

Stock Options

The following table summarizes information regarding the Company’s stock option awards for the three months ended March 31, 2023:

				Weighted
			Weighted	Average
			average	Remaining	Aggregate
			exercise	Contractual	intrinsic
			price in	Term	value
	Options		$ per share	(in years)	(in thousands)
Outstanding as of January 1, 2023	75,873	$	351.24	7.7		—
Granted	—		—			—
Exercised	—		—			—
Cancelled and forfeited	(1,347)		341.84			—
Outstanding as of March 31, 2023	74,526	$	347.06	7.5	$	—
Vested and exercisable as of March 31, 2023	65,364	$	391.51	6.9	$	—

The Company has 74,526 option grants outstanding at March 31, 2023 with exercise prices ranging from $11.25 per share to $2,750.00 per share. As of March 31, 2023, there was $0.2 million of total unrecognized

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compensation expense related to unvested stock options, which will be recognized over the weighted-average remaining vesting period of 1.5 years.

Restricted Stock Units (“RSUs”)

The following table summarizes information regarding the Company’s restricted share unit awards for the three months ended March 31, 2023:

			Weighted
			average grant date fair
	RSUs		value in $ per share
Outstanding as of January 1, 2023	38,635	$	41.89
Granted	—		—
Vested and issued	(63)		383.33
Forfeited	(1,314)		92.34
Outstanding as of March 31, 2023	37,258	$	39.54

The Company has total unrecognized compensation costs of $0.1 million associated with RSUs which are expected to be recognized over the awards average remaining vesting period of 2.4 years.

Stock-based Compensation

The following table presents stock-based compensation expense included in the Company’s consolidated statements of operations:

	Three Months Ended
	March 31,
(in thousands)	2023		2022
Research and development expense	$	164	$	94
Selling, general and administrative expense		835		906
Total stock-based compensation expense	$	999	$	1,000

Employee Stock Purchase Plan

The Company’s board of directors adopted, and in August 2018 the Company’s stockholders approved, the 2018 employee stock purchase plan, or the 2018 ESPP. The maximum aggregate number of shares of ordinary shares that may be purchased under the 2018 ESPP is 2,000 shares, or the ESPP Share Pool, subject to adjustment as provided for in the 2018 ESPP. The 2018 ESPP allowed eligible employees to purchase shares at a 15% discount to the lower of the closing share price at the beginning and end of the six-month offering periods commencing November 1 and ending April 30 and commencing May 1 and ending October 31 of each year. The Company suspended the 2018 ESPP in April 2020.

8.           Income Tax Expense

For the three months ended March 31, 2023, the Company did not record a tax expense. For the three months ended March 31, 2022, the Company recorded a tax expense of $0.4 million.

Deferred tax assets and deferred tax liabilities are recognized based on temporary differences between the financial reporting and tax bases of assets and liabilities using statutory rates. Management of the Company has evaluated the positive and negative evidence bearing upon the realizability of its deferred tax assets, including the Company’s history of losses and concluded that it is more likely than not that the Company will not recognize the benefits of its deferred tax assets. On the basis of this evaluation the Company has recorded a valuation allowance against all of its deferred tax assets at March 31, 2023 and December 31, 2022.

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9.         Earnings (Loss) per Share

Basic and Diluted Loss per Share

For the three months ended March 31, 2023 and 2022, basic and diluted net loss per share was determined by dividing net loss by the weighted average number of shares outstanding during the period. Diluted net loss per share is the same as basic net loss per share during the periods presented as the effects of the Company’s potential ordinary share equivalents are antidilutive since the Company had net losses for each period presented below.

	Three Months Ended
	March 31,
(in thousands, except share and per share data)	2023		2022
Net loss for the period	$	(8,700)	$	(11,819)
Weighted average number of shares outstanding		3,201,495		2,351,766
Basic and diluted loss per share	$	(2.72)	$	(5.03)

The following ordinary share equivalents were excluded from the calculations of diluted loss per share as their effect would be anti-dilutive since the Company had net losses for each period presented below:

	Three Months Ended
	March 31,
	2023	2022
Stock option awards	74,526	78,082
Restricted share units	37,258	46,555
Warrants	262,384	424,774

10.         Significant Arrangements and License Agreements

Er-Kim License Agreement

On July 13, 2022, the Company entered into an exclusive Distribution Agreement with Er-Kim Pharmaceuticals, or Er-Kim, for the oral and intravenous formulations of XENLETA. Under the terms of the agreement, Er-Kim gains exclusive rights to distribute XENLETA in nine countries, including Bulgaria, Croatia, Czechia, Greece, Hungary, Poland, Romania, Slovakia and Slovenia. Er-Kim also may distribute XENLETA to an additional five countries through a NPU program. The Company will be the exclusive supplier of XENLETA to Er-Kim.

Sales Promotion and Distribution Agreement with Merck & Co.

On July 15, 2020, the Company entered into a Distribution Agreement, with MSD and Supplier, each a subsidiary of Merck. Under the Distribution Agreement and subject to the satisfaction of certain conditions, MSD appointed the Company as its sole and exclusive distributor of certain products containing tedizolid phosphate as the active ingredient previously marketed and sold by Supplier and MSD under the trademark SIVEXTRO® for injection, intravenous use and oral use, or the Products, in the United States and its territories, or the SIVEXTRO Territory. SIVEXTRO is an oxazolidinone-class antibacterial indicated in adults and pediatric patients 12 years of age and older for the treatment of acute bacterial skin and skin structure infections caused by certain susceptible Gram-positive microorganisms.

On April 12, 2021, in accordance with the terms of the Distribution Agreement, the Company began exclusive distribution of SIVEXTRO under its own National Drug Code, or NDC, and the Company recognizes 100% of net product sales of SIVEXTRO in its results of operations. Subject to applicable law, the Company is entitled to determine the final selling prices of the Products charged by it to its customers at its sole discretion, subject to an overall annual limit on price increases, and will be solely responsible for sales contracting and all market access activities, including bidding, hospital listing and reimbursement. The Company is responsible for all costs related to the promotion, sale and distribution of the Products by it, as well as all costs required to meet its staffing obligations under the Distribution Agreement. Prior to the execution of the Letter Agreement, the Company was obligated to use commercially reasonable

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efforts to promote and distribute the Products and to maximize the sales of the Products throughout the SIVEXTRO Territory and utilized a combination of its employees and assistance from Amplity Health, a contract sales organization, to comply with this obligation.

On January 31, 2023, the Company entered into the Letter Agreement which, among other things, converted its exclusive license to promote, distribute and commercialize SIVEXTRO to a non-exclusive license and provided for the termination of the Distribution Agreement, effective June 30, 2023.

China Region License Agreement

In March 2018, the Company entered into the China Region License Agreement, with Sinovant Sciences, Ltd., or Sinovant, an affiliate of Roivant Sciences, Ltd., to develop and commercialize lefamulin in the greater China region. As part of the China Region License Agreement, Nabriva Therapeutics Ireland DAC and Nabriva Therapeutics GmbH, the Company’s wholly owned subsidiaries, granted Sinovant an exclusive license to develop and commercialize, and a non-exclusive license to manufacture, certain products containing lefamulin, or the China Region Licensed Products, in the People’s Republic of China, Hong Kong, Macau, and Taiwan, together the Extended China Territory. In May 2021, the Company entered into an assignment, assumption and novation agreement, or the Assignment Agreement, pursuant to which the Company consented to the assignment by Sinovant, an affiliate of Roivant Sciences, Ltd., of the China Region License Agreement to develop and commercialize lefamulin in the greater China region to Sumitomo Pharmaceuticals (Suzhou), a wholly-owned subsidiary of Sumitomo Dainippon Pharma Co., Ltd., or Sumitomo. Pursuant to the Assignment Agreement, the Company agreed to release Sinovant and its affiliates from their obligations under the China Region License Agreement and consented to Sumitomo Pharmaceuticals (Suzhou)’s assumption of such obligations. In addition, Sumitomo has agreed to guarantee all of the obligations of Sumitomo Pharmaceuticals (Suzhou) under the China Region License Agreement.

Under the China Region License Agreement, Sumitomo Pharmaceuticals (Suzhou) and the Company’s subsidiaries have established a joint development committee, or the JDC, to review and oversee development and commercialization plans in the Extended China Territory. The China Region License Agreement includes milestone events consisting of a non-refundable $5.0 million upfront payment, an additional $91.5 million in milestone payments upon the achievement of certain regulatory and commercial milestone events related to lefamulin for CABP, plus an additional $4.0 million in milestone payments if any China Region Licensed Product receives a second or any subsequent regulatory approval in the People’s Republic of China. The Company has received the $5.0 million upfront payment, a $1.5 million payment for the submission of a clinical trial application, or CTA, by Sinovant to the Chinese Food and Drug Administration, which was received in the first quarter of 2019 and a $5.0 million milestone payment in the third quarter of 2019 in connection with the FDA approval for lefamulin. The Company will also be eligible to receive low double-digit royalties on sales, if any, of China Region Licensed Products in the Extended China Territory. In December 2020, the Company announced the restructuring of its China Region License Agreement. The restructured agreement provided for additional manufacturing collaboration and regulatory support to be provided to the contract counterparty by the Company that is expected to help expedite the delivery of XENLETA to patients in greater China. The restructured agreement also accelerated $3.0 million of the $5.0 million milestone payment to the Company that was previously payable upon regulatory approval of XENLETA in China, including a non-refundable upfront payment of $1.0 million which was received in the fourth quarter of 2020 and a $1.0 million milestone achieved during the first quarter of 2021. During 2021, management determined that the remaining $1.0 million milestone payment was probable of achievement and therefore the Company is recognizing the $3.0 million of accelerated payments under the restructured agreement as collaboration revenue in the consolidated statements of operations over the estimated period the manufacturing collaboration and regulatory support will be provided to the contract counterparty based on the proportional performance of the underlying performance obligation. The remaining milestones of $86.0 million are tied to additional regulatory approvals and annual sales targets. The future regulatory and commercial milestone payments under the China Region License Agreement will be recorded during the period the milestones become probable of achievement.

Except for the manufacturing collaboration and regulatory support discussed above, Sumitomo Pharmaceuticals (Suzhou) will be solely responsible for all costs related to developing, obtaining regulatory approval of and commercializing China Region Licensed Products in the Extended China Territory and is obligated to use commercially

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reasonable efforts to develop, obtain regulatory approval for and commercialize China Region Licensed Products in the Extended China Territory. The Company is obligated to use commercially reasonable efforts to supply, pursuant to supply agreements to be negotiated by the parties, to Sumitomo Pharmaceuticals (Suzhou) a sufficient supply of lefamulin for Sumitomo Pharmaceuticals (Suzhou) to manufacture finished drug products for development and commercialization of the China Region Licensed Products in the Extended China Territory.

Unless earlier terminated, the China Region License Agreement will expire upon the expiration of the last royalty term for the last China Region Licensed Product in the Extended China Territory, which the Company expects will occur in 2033. Following the expiration of the last royalty term, the license granted to Sumitomo Pharmaceuticals (Suzhou) will become non-exclusive, fully-paid, royalty-free and irrevocable. The China Region License Agreement may be terminated in its entirety by Sumitomo Pharmaceuticals (Suzhou) upon 180 days’ prior written notice at any time. Either party may, subject to specified cure periods, terminate the China Region License Agreement in the event of the other party’s uncured material breach. Either party may also terminate the China Region License Agreement under specified circumstances relating to the other party’s insolvency. The Company has the right to terminate the China Region License Agreement immediately if Sumitomo Pharmaceuticals (Suzhou) does not reach certain development milestones by certain specified dates (subject to specified cure periods). The China Region License Agreement contemplates that the Company will enter into ancillary agreements with Sumitomo Pharmaceuticals (Suzhou), including clinical and commercial supply agreements and a pharmacovigilance agreement.

Sunovion License Agreement

In March 2019, the Company entered into the Sunovion License Agreement with Sunovion. As part of the Sunovion License Agreement, Nabriva Therapeutics Ireland DAC, the Company’s wholly owned subsidiary, granted Sunovion an exclusive license under certain patent rights, trademark rights and know-how to commercialize certain products containing XENLETA in the forms clinically developed by the Company or any of its affiliates, or the Sunovion Licensed Products, in Canada in all uses in humans in CABP and in any other indication for which the Sunovion Licensed Products have received regulatory approval in Canada. Under the Sunovion License Agreement, Sunovion and DAC established a joint development committee, or the Sunovion JDC, to review and oversee regulatory approval and commercialization plans in Canada. Sunovion will be solely responsible for all costs related to obtaining regulatory approval of and commercializing Sunovion Licensed Products in Canada and is obligated to use commercially reasonable efforts to develop, obtain regulatory approval for, and commercialize Sunovion Licensed Product in Canada.

On November 7, 2019, the Company, through Sunovion, submitted a New Drug Submission, or NDS. Health Canada determined there was a screening deficiency in December 2019 and a response from the Company/Sunovion was provided on December 18, 2019 and acknowledged by Health Canada on January 13, 2020. The NDS approval occurred on July 10, 2020.

The Company identified two performance obligations at inception: (1) the delivery of the exclusive license to Sunovion, which the Company has determined is a distinct license of functional intellectual property that Sunovion has obtained control of; and, (2) the participation in the Sunovion JDC. The $1.0 million non-refundable upfront payment was allocated entirely to the delivery of the license as the Sunovion JDC deliverable was deemed to be de minimis. With the NDS approval that occurred on July 10, 2020, the Company received a regulatory milestone payment of $0.5 million. Any future regulatory and commercial milestone payments under the Sunovion License Agreement will be recorded during the period the milestones become probable of achievement.

Named Patient Program Agreement with WE Pharma Ltd.

On June 30, 2020 the Company announced that WE Pharma Ltd., or WEP Clinical, a specialist pharmaceutical services company, had signed an exclusive agreement with the Company to supply XENLETA on a named patient or expanded access basis in certain countries outside of the US, China, Canada, Bulgaria, Croatia, Czechia, Greece, Hungary, Poland, Romania, Slovakia and Slovenia. The Named Patient Program, or NPP, is designed to ensure that physicians, contingent on meeting the necessary eligibility criteria and receiving approval, can request IV or oral XENLETA on behalf of patients who live in certain countries where it is not yet available and have an unmet medical

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need. On January 9, 2023, the Company provided WEP Clinical with notice of its intent to terminate the agreement in connection with the orderly wind down of its operations.

11.         Commitments and Contingencies

Future minimum contractual obligations and commitments are as follows:

	Year Ending December 31,
(in thousands)	Total		Remainder of 2023		2024		2025		2026		2027		Thereafter
Operating lease obligations	$	498		498		—		—		—		—	$	—
XENLETA API purchase		39,746		3,368		3,368		4,776		4,776		4,776		18,682
Other contractual commitments		6,064		3,790		1,385		889		—		—		—
Total contractual commitments and contingencies	$	46,308	$	7,656	$	4,753	$	5,665	$	4,776	$	4,776	$	18,682

The Company has contractual commitments related primarily to contracts entered into with contract manufacturing organizations and contract research organizations in connection with the commercial manufacturing of XENLETA. The amounts included in the above table are based on the existing contractual terms included within the agreements. Also, some of these contracts are subject to early termination clauses exercisable at the discretion of the Company.

Due to the Company’s intention to wind down operations and pursue the asset sales of XENLETA and CONTEPO, some amounts have been accrued for at March 31, 2023 and December 31, 2022 to comply with ASC 330-10-35-17, Inventory Purchase Commitments, regarding potential losses that a reporting entity may sustain as a result of firm purchase commitments. As of March 31, 2023, the Company had $4.3 million accrued within accrued expenses and other current liabilities, relating to the estimated losses under the XENLETA purchase commitments. Some of these future contractual commitments and contingencies include contractual language that may mitigate the payments for the commitments and contingencies. Additionally, as part of the asset sale process some of the other contractual commitments may be transferred as part of any potential transactions, possibly releasing the Company from any future commitments. There cannot, however, be any assurance that the Company will be able to identify, negotiate or complete a sale of any of the Company’s assets or, if such an asset sale transaction does occur, that any such transaction will include release of, or otherwise mitigate, the Company’s contractual commitments under its agreements on favorable terms or at all.

XENLETA API Supply

On August 4, 2021, our wholly-owned subsidiary, Nabriva Therapeutics Ireland DAC, entered into an amendment, or the First Amendment, to its API Supply Agreement, or the Hovione Supply Agreement, with Hovione Limited, or Hovione, which provides for the long-term commercial supply of the active pharmaceutical ingredients, or API, for XENLETA. Under the First Amendment, Hovione agreed to cancel the Company’s May 2021 purchase order for XENLETA API, which represented the Company’s minimum purchase requirement under the Hovione Supply Agreement. In addition, pursuant to the First Amendment, Hovione agreed to reduce the Company’s annual minimum purchase requirements for XENLETA API to no minimum purchase requirement in 2021, by 50% from 2022 to 2024 and by 25% in 2025, in consideration for cash payments totaling €3.2 million and the right to a low single-digit royalty on total net sales of XENLETA in the United States for a period commencing on August 4, 2021 and ending on November 22, 2030, or the Royalty Term, which royalty payments shall be no greater than an aggregate of €10.0 million. If the aggregate amount of royalties payments received by Hovione under the First Amendment is less than an aggregate of €4.0 million, the Company is obligated to pay Hovione the difference in a lump sum payment at the end of the Royalty Term. In addition, pursuant to the First Amendment, Hovione agreed to extend the duration of the Hovione Supply Agreement from November 22, 2025 to November 22, 2030 with annual minimum purchase requirements for 2026 to 2030 at the newly agreed annual minimum purchase amount for 2025. Pursuant to the First Amendment, upon the occurrence of certain events of insolvency for us, any unpaid minimum annual commitment amounts and royalty amounts under the agreement will become immediately due and payable.

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On November 11, 2022, the Company’s wholly-owned subsidiary, Nabriva Therapeutics Ireland DAC, entered into an amendment, or the Third Amendment, to the Hovione Supply Agreement. Under the Third Amendment, Hovione agreed to reduce the Company’s annual minimum purchase requirements for XENLETA API for certain geographies. In consideration for the reduced minimum purchase requirements, the Company granted Hovione the right to a low single-digit royalty on total net sales of XENLETA by the Company’s licensees outside of the United States to the extent that the commercial product of XENLETA sold by such licensees is manufactured with API obtained from a third party (or any finished commercial product containing API obtained from a third party) other than Hovione during the terms of the agreement.

Zavante Obligations

In connection with the acquisition of Zavante in July 2018, the Company is obligated to pay up to $97.5 million in contingent consideration to the former Zavante shareholders, of which $25.0 million would become payable upon the first approval of a NDA from the FDA for CONTEPO for any indication, or the Approval Milestone Payment, and an aggregate of up to $72.5 million would become payable upon the achievement of specified sales milestones, or the Net Sales Milestone Payments. The Company’s shareholders have approved the issuance of the Company’s ordinary shares in settlement of potential milestone payment obligations that may become payable in the future to former Zavante stockholders, including the Approval Milestone Payment which will be settled in Company ordinary shares. The Company also has the right to settle the Net Sales Milestone Payments in Company ordinary shares, except as otherwise provided in the Agreement and Plan of Merger, dated July 23, 2018, by and among Nabriva Therapeutics plc and certain of its subsidiaries and Zavante Therapeutics, Inc. and Cam Gallagher, solely in his capacity as representative of the former Zavante stockholders, or the “Merger Agreement”.

The Company is obligated to pay $3.0 million in cash upon marketing approval by the FDA with respect to any oral, intravenous or other form of fosfomycin, or the Zavante Products, and milestone payments of up to $26.0 million that may be settled in ordinary shares in the aggregate upon the occurrence of various specified levels of net sales with respect to the Zavante Products. In addition, Zavante is obligated to make annual royalty payments of a mid-single-digit percentage of net sales of Zavante Products, subject to adjustment based on net sales thresholds and with such percentage reduced to low single-digits if generic fosfomycin products account for half of the applicable market on a product-by-product and country-by-country basis. Zavante will also pay a mid-single-digit percentage of transaction revenue in connection with the consummation of the grant, sale, license or transfer of market exclusivity rights for a qualified infectious disease product (within the meaning of the 21^st Century Cures Act) related to a Zavante Product.

Litigation

As of the date of the filing this Quarterly Report on Form 10-Q, there are no material outstanding legal proceedings against the Company or its current officers or directors.

12.         Subsequent Events

The Company has evaluated all subsequent events through the filing date of this Form 10-Q with the SEC, to ensure that this filing includes appropriate disclosure of events both recognized in the financial statements as of March 31, 2023, and events which occurred subsequently but were not recognized in the financial statements. There were no subsequent events which required recognition, adjustment to, or disclosure in the financial statements.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial statements and the related notes appearing elsewhere in this Quarterly Report on Form 10-Q and our historical consolidated financial statements and the related notes thereto appearing in our Annual Report on Form 10-K for the year ended December 31, 2022, filed with the Securities and Exchange Commission on April 17, 2023. Some of the information contained in this discussion and analysis or set forth elsewhere in this Quarterly Report, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve risks and uncertainties. As a result of many factors, including those factors set forth in the “Risk Factor Summary” and “Risk Factors” sections of our Annual Report on Form 10-K for the year ended December 31, 2022, as filed with the SEC on April 17, 2023, our actual results could differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.

On September 16, 2022, our board of directors effected a one-for-twenty five reverse stock split of our ordinary shares, or the Reverse Stock Split. As a result of the Reverse Stock Split, every twenty five ordinary shares of $0.01 each (nominal value) in the authorized and unissued and authorized and issued share capital of the company were consolidated into one ordinary share of $0.25 each (nominal value), and the nominal value of each ordinary share was subsequently immediately reduced from $0.25 to $0.01 nominal value per share. All outstanding stock options, restricted share units and warrants entitling their holders to purchase or acquire ordinary shares were adjusted as a result of the Reverse Stock Split. Accordingly, all ordinary share, common share, equity award, warrant and per share amounts have been adjusted as necessary to reflect the Reverse Stock Split for all prior periods presented.

Overview

We are a biopharmaceutical company that historically engaged in the commercialization and research and development of novel anti-infective agents to treat serious infections. We have the commercial rights to two approved products, SIVEXTRO and XENLETA, as well as one development product candidate, CONTEPO. As part of a plan approved by our board of directors on January 4, 2023 to preserve our cash so that we may adequately fund an orderly wind down of our operations, we have reduced our operations to those necessary to: (i) make SIVEXTRO and XENLETA commercially available to wholesale customers; (ii) identify and explore, with the assistance of Torreya Capital, a range of strategic options, including the sale, license or other disposition of one or more of our assets, technologies or products, including XENLETA and CONTEPO; and (iii) wind down our business. We have no intention of resuming any active sales promotion or research and development activities. Also as part of the Cash Preservation Plan, our board of directors determined to terminate all of our employees not deemed necessary to execute an orderly wind down of our operations, including Theodore Schroeder, our former chief executive officer, and Steven Gelone, our former president and chief operating officer, each of whom was terminated effective January 15, 2023.

In January 2023, we settled all outstanding balances due to Hercules Capital and removed all secured liens on all of our assets. We also terminated our agreement with Amplity Health, the contract sales organization responsible for promoting SIVEXTRO and XENLETA and, on January 31, 2023, entered into the Letter Agreement to begin transition responsibility for the promotion and distribution of SIVEXTRO back to Merck & Co. Inc. as of June 30, 2023. Although we have ceased our active commercialization efforts, we expect to continue to make XENLETA and, for the remaining term of the Distribution Agreement, SIVEXTRO commercially available to wholesale customers. We expect to continue to incur significant expenses and operating losses while we carry out the orderly wind down of operations.

Financial Operations Overview

Revenue

In September 2019, we had our commercial launch of XENLETA and, in April 2021 we began exclusive distribution of SIVEXTRO in the United States and certain of its territories. For the three months ended March 31, 2023, we recorded $7.5 million of SIVEXTRO product revenue, net of gross-to-net accruals and adjustments for returns, and $0.1 million of XENLETA product revenue, net of gross-to-net accruals and adjustments for returns. Future product

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revenues will be generated by the amount and frequency of reorders from our wholesale customers based on the ultimate consumption patterns from the end users of SIVEXTRO and XENLETA. We do not expect to generate meaningful revenue from product sales after June 30, 2023, at which time our right to commercialize SIVEXTRO will terminate. We expect to continue to make XENLETA commercially available to wholesale customers after June 30, 2023.

Collaboration revenues for the three months ended March 31, 2023 were less than $0.1 million.

Cost of Revenues

Cost of revenues represented 27.6% and 17.2% of our total operating expenses for the three months ended March 31, 2023 and 2022, respectively. Cost of revenues primarily represent the cost of the product itself, labor and overhead, and any reserve for excess or obsolete inventory. Other cost of revenues include costs associated with the manufacturing collaboration and regulatory support under our licensing agreements. The increase in cost of revenue for the three months ended March 31, 2023 was primarily due to an increase in SIVEXTRO product sales.

Research and Development Expenses

Research and development expenses represented 16.3% and 18.0% of our total operating expenses for the three months ended March 31, 2023 and 2022, respectively.

For each of our research and development programs, we incur both direct and indirect expenses. Direct expenses include third-party expenses related to these programs such as expenses for manufacturing services (prior to our products receiving FDA approval, after which time these costs are capitalized in inventory until product is sold), non-clinical and clinical studies and other third party development services. Indirect expenses include salaries and related costs, including stock-based compensation, for personnel in research and development functions, infrastructure costs allocated to research and development operations, costs associated with obtaining and maintaining intellectual property associated with our research and development operations, laboratory consumables, consulting fees related to research and development activities and other overhead costs. We utilize our research and development staff and infrastructure resources across multiple programs, and many of our indirect costs historically have not been specifically attributable to a single program. Accordingly, we cannot state precisely our total indirect costs incurred on a program-by-program basis.

The following table summarizes our direct research and development expenses by program and our indirect costs.

	Three Months Ended March 31.
(in thousands)	2023		2022
Direct Costs
XENLETA	$	45	$	531
CONTEPO		31		95
Other programs and initiatives		23		422
Indirect Costs		2,526		2,469
Total research and development expenses	$	2,625	$	3,517

We do not expect to continue to incur significant research and development expenses in the future as we have discontinued our research and development efforts as part of our Cash Preservation Plan.

Selling, General and Administrative Expenses

Selling, general and administrative expenses represented 56.0% and 64.9% of our total operating expenses for the three months ended March 31, 2023 and 2022, respectively.

Selling, general and administrative expenses consist primarily of salaries and related costs, including stock-based compensation not related to research and development activities for personnel in our commercial, medical

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affairs, finance, information technology and administrative functions, as well as costs related to our contract commercial organization, to provide community-based commercial and sales services. Selling, general and administrative expenses also include costs related to professional fees for auditors, lawyers and tax advisors and consulting fees not related to research and development operations, as well as functions that are partly or fully outsourced by us, such as accounting, payroll processing and information technology. We do not expect to incur significant selling, general and administrative expenses in the future as (i) we have terminated all of our employees not deemed necessary to execute an orderly wind down of our operations, (ii) we have terminated our agreement with Amplity Health, the contract sales organization responsible for promoting SIVEXTRO and XENLETA, and (iii) otherwise reduced the scope of our current operating plan to seeking out and evaluating a range of strategic options.

Critical Accounting Policies and Estimates

Our management’s discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which we have prepared in accordance with generally accepted accounting principles in the United States, or U.S. GAAP. The preparation of our consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the end of the reporting period, as well as the reported revenues and expenses during the reporting periods and how our estimates and assumptions have changed over each relevant reporting period. However, these estimates and assumptions are subject to uncertainty, due to unknown trends and events and various other factors that we believe to be reasonably likely under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Our significant accounting policies and estimates are described in more detail in the notes to our consolidated financial statements appearing elsewhere in this filing. However, we believe that the following accounting policies and estimates are the most critical to aid you in fully understanding and evaluating our financial condition and results of operations.

Revenue Recognition

Under Accounting Standards Codification, or ASC, 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration that the entity expects to receive in exchange for those goods or services. We then recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied as services are rendered.

The transaction price that we recognize as revenue reflects the amount we expect with the sale and transfer of control of the product to our customers. Once the customer takes control of the product, our performance obligation under the sale contract is complete and revenue is recorded net of applicable reserves for various types of variable consideration. The types of variable consideration are as follows:

● Fees-for-service;

● Product returns;

● Chargebacks and rebates;

● Government rebates;

● Commercial payer and other rebates;

● Group Purchasing Organizations, or GPO, administration fees; and

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● Voluntary patient assistance programs

In determining the amounts of variable consideration, we must make significant judgments and estimates. In assessing the amount of net revenue to record, we consider both the likelihood and the magnitude of the revenue reversal. Actual amounts of consideration ultimately received may differ significantly from our estimates. Factors that can impact these estimates include business related dynamics such as; the growth of the markets, and uptake of product acceptance within these markets. If actual results in the future vary from our estimates, we adjust our estimates which would affect net product revenue and earnings in the period such variances become known.

Net realizable value of XENLETA inventory and prepaid inventory and potential loss on contractual commitments with contract manufacturing organizations

Our XENLETA inventory is stated at the lower of cost or net realizable value, with cost determined on a first-in, first-out basis, and consists primarily of material costs, third-party manufacturing costs, and related transportation costs in our supply chain. In conjunction with our plan to conduct an orderly wind down of operations, the Company assessed the net realizable value of XENLETA inventory as of December 31, 2022 in relation to potential asset sale opportunities. As a result, we adjusted the value of inventory and prepaid inventory as of December 31, 2022 with an adjustment of $5.6 million. The remaining balance of XENLETA inventory was $7.6 million as of March 31, 2023.

We also considered ASC 330-10-35-17, Inventory Purchase Commitments, regarding potential losses that a reporting entity may sustain as a result of firm purchase commitments. As of December 31, 2022 and March 31, 2023 the total aggregate purchase commitments were $45.1 million. We consider ongoing asset sales and other negotiations, including evaluating whether certain potential buyers have the financial resources to complete the transaction and the market’s demand for the XENLETA product to assess any potential loss on our contractual commitments. As of December 31, 2022 and March 31, 2023, we had $4.3 million accrued within accrued expenses and other current liabilities, relating to the estimated losses under the XENLETA purchase commitments.

Some of these future contractual commitments and contingencies include contractual language that may mitigate the payments for the commitments and contingencies. Additionally, as part of the asset sale process some of the other contractual commitments may be transferred as part of any potential transaction, possibly releasing us from any future commitments. Actual amounts ultimately received for our inventory and paid for our contractual commitments may differ significantly from our estimates. If actual or future estimated payments vary from our estimates, based upon future asset sales and other negotiations we adjust our estimates which would affect net income or loss in the period such variances become known. There cannot be any assurance that we will be able to identify, negotiate or complete a sale of any of our assets or, if such an asset sale transaction does occur, that any such transaction will include release of, or otherwise mitigate, our contractual commitments under our agreements on favorable terms or at all

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Results of Operations

Comparison of Three Months Ended March 31, 2023 and 2022

	Three Months Ended March 31,
(in thousands)	2023		2022		Change
Consolidated operations data:
Product revenue, net	$	7,561	$	7,040	$	521
Collaboration revenue		29		629		(600)
Research premium and grant revenue		—		351		(351)
Total revenues		7,590		8,020		(430)
Costs and expenses:
Cost of revenues		(4,438)		(3,361)		(1,077)
Research and development expenses		(2,625)		(3,517)		892
Selling, general and administrative expenses		(9,002)		(12,700)		3,698
Total operating expenses		(16,065)		(19,578)		3,513
Loss from operations		(8,475)		(11,558)		3,083
Other income (expense):
Other income, net		(31)		308		(339)
Interest expense, net		(194)		(215)		21
Loss before income taxes		(8,700)		(11,465)		2,765
Income tax expense		—		(354)		354
Net loss	$	(8,700)	$	(11,819)	$	3,119

Revenues

Revenues for the three months ended March 31, 2023 were $7.6 million compared to $8.0 million for the three months ended March 31, 2022. The $0.4 million decrease was driven primarily by a decrease in collaboration revenues.

Cost of Revenues

Cost of revenues for the three months ended March 31, 2023 was $4.4 million compared to $3.4 million for the three months ended March 31, 2022. The $1.1 million increase was primarily due to purchase and subsequent sale of SIVEXTRO inventory due to increased sales of SIVEXTRO during the three months ended March 31, 2023. Cost of revenues for XENLETA primarily represents direct and indirect manufacturing costs, while cost of revenues for SIVEXTRO represent the actual purchase cost for the finished product from Merck.

Research and Development Expenses

Research and development expenses for the three months ended March 31, 2023 were $2.6 million compared to $3.5 million for the three months ended March 31, 2022. The $0.9 million decrease was primarily due to fewer expenses incurred under our reduced operating plans following our decision to wind down operations.

Selling, General and Administrative Expenses

Selling, general and administrative expenses for the three months ended March 31, 2023 were $9.0 million compared to $12.7 million for the three months ended March 31, 2022. The $3.7 million decrease was driven by a decrease in professional fees resulting from the Company winddown.

Other Income, Net

Other income, net, decreased by $0.3 million for the three months ended March 31, 2023 primarily due to remeasurements of our foreign currency account balances.

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Interest Expense, Net

Interest expense, net was $0.2 million for both the three months ended March 31, 2023 and March 31, 2022.

Income Tax Benefit (Expense)

We did not record an income tax expense for the three months ended March 31, 2023. For the three months ended March 31, 2022 we recorded $0.4 million of income tax expense.

Liquidity and Capital Resources

Since our inception, we have incurred net losses and generated negative cash flows from our operations. To date, we have financed our operations through the sale of equity securities, convertible and term debt financings, research and development support from governmental grants and loans and proceeds from licensing agreements and XENLETA and SIVEXTRO product sales. As of March 31, 2023, we had cash, cash equivalents and restricted cash of $1.9 million. As part of a plan approved by our board of directors on January 4, 2023 to preserve our cash so that we may adequately fund an orderly wind down of our operations, we have reduced our operations to those necessary to: (i) to make SIVEXTRO and XENLETA commercially available to wholesale customers; (ii) identify and explore, with the assistance of Torreya Capital, a range of strategic options, including the sale, license or other disposition of one or more of our assets, technologies or products, including XENLETA and CONTEPO; and (iii) wind down our business. We have no intention of resuming any active sales promotion or research and development activities. Our management has determined that our liquidity condition and existing financial obligations raise substantial doubt about our ability to continue as a going concern if we do not complete the monetization of at least one of our assets. We aim to complete an asset monetization transaction; however, completing an asset monetization transaction is not entirely within our control. Therefore,we may not have sufficient cash flows to satisfy our financial obligations as they come due and therefore, substantial doubt exists about our ability to continue as a going concern.

In September 2021, we entered into a purchase agreement, or Purchase Agreement, with Lincoln Park Capital Fund, LLC, or Lincoln Park, which, subject to the terms and conditions, provides that we have the right to sell to Lincoln Park and Lincoln Park is obligated to purchase up to $23.0 million of our ordinary shares. In addition, under the Purchase Agreement, we agreed to issue a commitment fee of 25,298 ordinary shares, or the Commitment Shares, as consideration for Lincoln Park entering into the Purchase Agreement and for the payment of $0.01 per Commitment Share. Under the Purchase Agreement, we may from time to time, at our discretion, direct Lincoln Park to purchase on any single business day, or a Regular Purchase, up to (i) 16,000 ordinary shares if the closing sale price of our ordinary shares is not below $0.25 per share on Nasdaq, (ii) 24,000 ordinary shares if the closing sale price of our ordinary shares is not below $50.00 per share on Nasdaq or (iii) 32,000 ordinary shares if the closing sale price of our ordinary shares is not below $75.00 per share on Nasdaq. In addition to Regular Purchases, we may also direct Lincoln Park to purchase other amounts as accelerated purchases or as additional accelerated purchases on the terms and subject to the conditions set forth in the Purchase Agreement. Notwithstanding the foregoing, we may direct Lincoln Park to purchase on any single business day ordinary shares with a purchase price equal to or greater than $200,000 irrespective of the number of ordinary shares required to approximate that amount. In any case, Lincoln Park’s commitment in any single Regular Purchase may not exceed $2.5 million absent a mutual agreement to increase such amount. As of March 31, 2023, we have issued and sold an aggregate of 320,000 ordinary shares pursuant to the Purchase Agreement and received net proceeds of $4.6 million. From April 1, 2023 and through the date of this filing, we did not sell any shares under the Purchase Agreement.

In May 2021, we entered into an Open Market Sale Agreement^SM, or the Sale Agreement, with Jefferies, LLC, or Jefferies, as agent, pursuant to which we may offer and sell ordinary shares, from time to time through Jefferies, by any method permitted that is deemed an “at the market offering” as defined in Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended. Upon entry into the Sale Agreement, our existing ATM agreement with Jefferies entered into in June 2019 was terminated. We did not incur any termination penalties as a result of the replacement of the prior agreement with Jefferies. As of March 31, 2023, we have issued and sold an aggregate of 1,429,729 ordinary shares pursuant to the Sale Agreement and received gross proceeds of $33.9 million and net proceeds of $32.5 million,

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after deducting commissions to Jefferies and other offering expenses. From April 1, 2023 and through the date of this filing, we did not sell any shares under the Sale Agreement.

In December 2018, we announced the closing of up to a $75.0 million term loan with Hercules, or the Loan Agreement, $25.0 million of which was funded on the day of closing. Under the terms of the loan, in addition to the $25.0 million received at closing, we borrowed an additional $10.0 million in connection with the approval by the FDA of the NDA for XENLETA. In March 2020, we repaid Hercules $30.0 million of the $35.0 million in aggregate principal amount of debt outstanding under the Loan Agreement, and in January 2023 we repaid the remaining balance.

Cash Flows

The following table summarizes our cash flows for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
(in thousands)	2023		2022
Net cash (used in) provided by:
Operating activities	$	(5,618)	$	(15,870)
Investing activities		(3)		(36)
Financing activities		(4,852)		2,194
Effects of foreign currency translation on cash		(143)		(164)
Net decrease in cash, cash equivalents and restricted cash	$	(10,616)	$	(13,876)

Operating Activities

Cash flow used in operating activities for the three months ended March 31, 2023 was $5.6 million compared to $15.9 million for the three months ended March 31, 2022, representing a 65% decrease. The $10.3 million decrease was primarily due to a reduction in operating expenses incurred under our reduced operating plans following our decision to wind down operations as well as changes in working capital.

Investing Activities

Cash flow used in investing activities was primarily for the purchase of property and equipment and was less than $0.1 million for both the three months ended March 31, 2023 and March 31, 2022.

Financing Activities

Cash flow used in financing activities for the three months ended March 31, 2023 was $4.9 million primarily driven by the settlement of ther Hercules Loan Agreement in January 2023 as part of our plan to wind down operations.

Material Cash Requirements

As part of a plan approved by our board of directors on January 4, 2023 to preserve our cash so that we may adequately fund an orderly wind down of our operations, we have reduced our operations to those necessary to: (i) make SIVEXTRO and XENLETA commercially available to wholesale customers; (ii) identify and explore, with the assistance of Torreya Capital, a range of strategic options, including the sale, license or other disposition of one or more of our assets, technologies or products, including XENLETA and CONTEPO; and (iii) wind down our business. We have no intention of resuming any active sales promotion or research and development activities. Also as part of the Cash Preservation Plan, our board of directors determined to terminate all of our employees not deemed necessary to execute an orderly wind down of our business, including Theodore Schroeder, our former chief executive officer, and Steven Gelone, our former president and chief operating officer, each of whom was terminated effective January 15, 2023. The estimated total cost of severance costs associated with the wind down of our operations is approximately $5.4 million, of which $1.3 million was recorded in research and development expenses and $4.1 million was recorded in the selling, general and administrative expenses in the statement of operations for the three months ended March 31, 2023. As of March 31, 2023 the remaining balance of severance costs associated with the wind down of our operations is

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approximately $3.8 million which is recorded in accrued expenses and other current liabilities in the consolidated balance sheet.

In January 2023, we settled our outstanding balance due to Hercules Capital of approximately $4.5 million and removed all secured liens on all of our assets. We also terminated our agreement with Amplity Health, the contract sales organization responsible for promoting SIVEXTRO and XENLETA and, on January 31, 2023, entered into a letter agreement, or the Letter Agreement, relating to our Sales Promotion and Distribution Agreement, or the Distribution Agreement, with MSD International GmbH, or MSD, and Merck Sharp & Dohme Corp., or the Supplier, to begin transition responsibility for the promotion and distribution of SIVEXTRO back to Merck & Co. Inc. as of June 30, 2023.

As previously disclosed, we have retained Torreya Capital to advise on our exploration of a range of strategic options. While we continue to work with Torreya Capital on identifying and evaluating potential strategic options with the goal of maximizing value, we are currently focused, as part of our Cash Preservation Plan, on the sale of our existing assets, including XENLETA and CONTEPO. In the event that our board of directors determines that a liquidation and dissolution of our business approved by shareholders is the best method to maximize shareholder value, we would file proxy materials with the Securities and Exchange Commission, or SEC, and schedule an extraordinary meeting of our shareholders to seek approval of such a plan as required.

We have contractual commitments related primarily to contracts entered into with contract manufacturing organizations and contract research organizations in connection with the commercial manufacturing of XENLETA and other research and development activities. The contractual commitments are further described in Note 11 to the unaudited consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q.

Based on our current operating plans, we expect that our existing cash resources as of the date of this Quarterly Report on Form 10-Q will be sufficient to enable us to fund our operations and capital expenditure requirements through the end of June 2023. We have based this estimate on assumptions that may prove to be wrong, and we could use our capital resources sooner than we currently expect. This estimate assumes, among other things, that we do not obtain any additional funding through grants and clinical trial support, collaboration agreements, or from the monetization of one or more of our assets.

Capital Expenditures

Capital expenditures were $3,000 and $35,000 for the three months ended March 31, 2023 and 2022, respectively. Currently, there are no material capital projects planned in 2023.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to a variety of financial risks in the ordinary course of our business: market risk, credit risk and liquidity risk. Our overall risk management program focuses on preservation of capital given the unpredictability of financial markets. These market risks are principally limited to interest rate and foreign currency fluctuations.

Market Risk

We do not have any significant credit risk exposure to any single counterparty or any group of counterparties having similar characteristics. The credit risk on liquid funds (bank accounts, cash balances, marketable securities and term deposits) is limited because the counterparties are banks with high credit ratings from international credit rating agencies. The primary objective of our investment activities is to preserve principal and liquidity while maximizing income without significantly increasing risk. We do not enter into investments for trading or speculative purposes.

We are exposed to foreign exchange risk arising from various currency exposures, primarily with respect to the euro and the British pound. Our functional currency is the U.S. dollar, but we receive payments and acquire materials, in each of these other currencies. We have not established any formal practice to manage the foreign exchange risk against our functional currency. However, we attempt to minimize our net exposure by buying or selling foreign currencies at spot rates upon receipt of new funds to facilitate committed or anticipated foreign currency transactions.

30

Interest rate risk may arise from short-term or long-term debt. Prior to our repayment, outstanding indebtedness with Hercules bore interest at the greater of 9.80% and 9.80% plus the prime rate of interest minus 5.50%. Effective September 22, 2022 the prime rate increased to 6.25%, which increased the interest on our loan with Hercules to 10.55%. On January 5, 2023, we repaid $4.5 million to Hercules Capital, including principal, accrued and unpaid interest, fees and other expenses, under our loan agreement. Effective at the time of repayment, the Hercules loan agreement was terminated, and Hercules released all security interests held on the assets of us and our subsidiaries.

Inflation generally affects us by increasing our cost of labor and research, manufacturing and development costs. We believe that inflation has not had a material effect on our financial statements included elsewhere in this Quarterly Report on Form 10-Q. However, our operations may be adversely affected by inflation in the future.

Liquidity Risk

Since our inception, we have incurred net losses and generated negative cash flows from our operations. We anticipate based on our current operating plans, that our existing cash, cash equivalents and restricted cash as of March 31, 2023 will be sufficient to enable us to fund our operations and capital expenditure requirements through the end of June 2023. We have based this estimate on assumptions that may prove to be wrong, and we could use our capital resources sooner than we currently expect. This estimate assumes, among other things, that we do not obtain any additional funding through grants and clinical trial support, collaboration agreements or from the monetization of one or more of our assets.

Although we have ceased all research and development activity and halted active promotion of our products, if we were to resume such activities, we would require substantial additional funding. Raising additional capital may cause dilution to our existing shareholders, restrict our operations or require us to relinquish rights to our technologies, products or product candidate. Additional funds may not be available when we need them on terms that are acceptable to us, or at all. If adequate funds are not available to us on a timely basis, we may be required to further curtail or cease our operations or we may have to relinquish valuable rights to our technologies, any current or future revenue streams, research programs, products or product candidates, or grant licenses on terms that may not be favorable to us.

ITEM 4. CONTROLS AND PROCEDURES

Conclusions Regarding the Effectiveness of Disclosure Controls and Procedures

We have carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act) under the supervision and the participation of the Company’s management, which is responsible for the management of the internal controls, and which includes our Interim Chief Executive Officer and Chief Financial Officer (our principal executive officer and principal financial officer, respectively). The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. There are inherent limitations to the effectiveness of any system of disclosure controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures. Accordingly, even effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives. Based upon our evaluation of our disclosure controls and procedures as of March 31, 2023, our Interim Chief Executive Officer and Chief Financial Officer concluded that, as of such date, our disclosure controls and procedures were effective at a reasonable level of assurance.

31

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f)) that occurred during the three months ended March 31, 2023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II

ITEM 1. LEGAL PROCEEDINGS

We are not currently a party to any material legal proceedings and we are not aware of any pending or threatened litigation against us that could have a material adverse effect on our business, operating results or financial condition.

ITEM 1A. RISK FACTORS

In addition to the other information set forth in this Quarterly Report on Form 10-Q, carefully consider the factors discussed in Part I, Item 1A. Risk Factors in our Annual Report on Form 10-K for the year ended December 31, 2022, as filed with the SEC on April 17, 2023, which could materially affect our business, financial condition or future results.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Recent Sales of Unregistered Securities

We did not sell any of our equity securities or any options, warrants, or rights to purchase our equity securities during the three months ended March 31, 2023 that were not registered under the Securities Act of 1933, as amended, and that have not otherwise been described in a Current Report on Form 8-K or a Quarterly Report on Form 10-Q.

Purchase of Equity Securities

We did not purchase any of our equity securities during the period covered by this Quarterly Report on Form 10-Q.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

32

ITEM 6. EXHIBITS

		Incorporated by Reference
Exhibit Number	Description of Exhibit	Form	File Number	Date of Filing	Exhibit Number	Filed Herewith
31.1	Certification of 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
31.2	Certification of 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 principal executive officer pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002					X
32.2	Certification of principal financial officer pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002					X
101	The following materials from the Company’s Quarterly Report on Form 10-Q for the period ended March 31, 2023, formatted in inline XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets as of March 31, 2023 and December 31, 2022, (ii) Consolidated Statements of Operations for the three months ended March 31, 2023 and 2022, (iii) Consolidated Statements of Cash Flows for the three months ended March 31, 2023 and 2022, (iv) Consolidated Statement of Changes in Stockholders’ Equity for the three months ended March 31, 2023 and 2022 and (v) Notes to Unaudited Consolidated Financial Statements.					X
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).					X

33

SIGNATURES

Pursuant to the requirements 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.

	NABRIVA THERAPEUTICS plc
Date: May 22, 2023
	By:	/s/ J. Christopher Naftzger
		J. Christopher Naftzger
		Interim Chief Executive Officer
		(Principal Executive Officer)
Date: May 22, 2023	By:	/s/ Daniel Dolan
		Daniel Dolan
		Chief Financial Officer
		(Principal Financial and Accounting Officer)

34

EX-31.1

EXHIBIT 31.1

CERTIFICATIONS

I, J. Christopher Naftzger, certify that:

1.        I have reviewed this Quarterly Report on Form 10-Q of Nabriva Therapeutics plc;

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 officer 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 officer 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.

/s/ J. Christopher Naftzger
	J. Christopher Naftzger
	Interim Chief Executive Officer
	(Principal Executive Officer)

Dated: May 22, 2023

EX-31.2

EXHIBIT 31.2

CERTIFICATIONS

I, Daniel Dolan, certify that:

1.        I have reviewed this Quarterly Report on Form 10-Q of Nabriva Therapeutics plc;

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 officer 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 officer 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.

/s/ Daniel Dolan
	Daniel Dolan
	Chief Financial Officer
	(Principal Financial Officer)

Dated: May 22, 2023

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

In connection with the Quarterly Report on Form 10-Q of Nabriva Therapeutics plc (the “Company”) for the period ended March 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, J. Christopher Naftzger, Interim Chief Executive Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, that to his knowledge:

(1)         the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)         the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Interim
/s/ J. Christopher Naftzger
	J. Christopher Naftzger
	Interim Chief Executive Officer
	(Principal Executive Officer)

Dated: May 22, 2023

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

In connection with the Quarterly Report on Form 10-Q of Nabriva Therapeutics plc (the “Company”) for the period ended March 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Daniel Dolan, Chief Financial Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, that to his knowledge:

(1)          the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)          the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Daniel Dolan
	Daniel Dolan
	Chief Financial Officer
	(Principal Financial Officer)

Dated: May 22, 2023

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2023	Apr. 30, 2023
Document And Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	001-37558
Entity Registrant Name	Nabriva Therapeutics plc
Entity Incorporation, State or Country Code	L2
Entity Address, Address Line One	25-28 North Wall Quay
Entity Address, Address Line Two	IFSC
Entity Address, City or Town	Dublin 1
Entity Address, Country	IE
Entity Tax Identification Number	00-0000000
Entity Address, Postal Zip Code	00000
City Area Code	353 1
Local Phone Number	649 2000
Title of 12(b) Security	Ordinary Shares, nominal value $0.01 per share
Trading Symbol	NBRV
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Shares Outstanding		3,201,456
Entity Central Index Key	0001641640
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 1,798	$ 12,414
Restricted cash	123	123
Accounts receivable, net and other receivables	10,510	6,742
Inventory	9,027	9,676
Prepaid expenses	2,236	2,149
Total current assets	23,694	31,104
Property and equipment, net	263	280
Intangible assets, net	2	3
Other non-current assets	379	378
Total assets	24,338	31,765
Current liabilities:
Current portion of long-term debt	197	4,833
Accounts payable	6,978	5,431
Accrued expense and other current liabilities	20,823	17,341
Total current liabilities	27,998	27,605
Non-current liabilities:
Long-term debt	345	388
Other non-current liabilities	352	479
Total non-current liabilities	697	867
Total liabilities	28,695	28,472
Commitments and contingencies (Note 11)
Stockholders' equity (deficit):
Ordinary shares, nominal value $0.01, 12,000,000 ordinary shares authorized at March 31, 2023; 3,201,495 and 3,201,417 issued and outstanding at March 31, 2023 and December 31, 2022, respectively	32	32
Preferred shares, nominal value $0.01, 100,000,000 shares authorized at March 31, 2023; None issued and outstanding
Additional paid in capital	657,145	656,095
Accumulated other comprehensive income	27	27
Accumulated deficit	(661,561)	(652,861)
Total stockholders' equity (deficit)	(4,357)	3,293
Total liabilities and stockholders' equity (deficit)	$ 24,338	$ 31,765

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2023	Dec. 31, 2022
Consolidated Balance Sheets
Ordinary stock, nominal value (in dollars per share)	$ 0.01	$ 0.01
Ordinary stock, authorized shares	12,000,000	12,000,000
Ordinary stock, issued shares	3,201,495	3,201,417
Ordinary stock, outstanding shares	3,201,495	3,201,417
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares	100,000,000	100,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0

XML

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues:
Total revenues	$ 7,590	$ 8,020
Operating expenses:
Cost of revenues	(4,438)	(3,361)
Research and development expenses	(2,625)	(3,517)
Selling, general and administrative expenses	(9,002)	(12,700)
Total operating expenses	(16,065)	(19,578)
Loss from operations	(8,475)	(11,558)
Other income (expense):
Other income (expense), net	(31)	308
Interest expense, net	(194)	(215)
Loss before income taxes	(8,700)	(11,465)
Income tax expense		(354)
Net loss	$ (8,700)	$ (11,819)
Loss per share
Basic loss ($ per share)	$ (2.72)	$ (5.03)
Diluted loss ($ per share)	$ (2.72)	$ (5.03)
Weighted average number of shares:
Basic (in shares)	3,201,495	2,351,766
Diluted (in shares)	3,201,495	2,351,766
Product revenue, net
Revenues:
Total revenues	$ 7,561	$ 7,040
Collaboration revenue
Revenues:
Total revenues	$ 29	629
Research premium and grant revenue
Revenues:
Total revenues		$ 351

XML

Consolidated Statements of Changes in Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Ordinary shares	Additional paid in capital	Accumulated other comprehensive income	Accumulated deficit	Total
Stockholders' equity, beginning balance at Dec. 31, 2021	$ 23	$ 648,976	$ 27	$ (595,676)	$ 53,350
Stockholders' equity, beginning balance (in shares) at Dec. 31, 2021	2,269
Consolidated Statements of Changes in Stockholders' Equity (Deficit)
Issuance of ordinary shares	$ 2	2,219			2,221
Issuance of ordinary shares (in shares)	198
Shares issued in connection with the vesting of restricted stock units (in shares)	3
Equity transaction costs		(127)			(127)
Stock-based compensation expense		1,000			1,000
Net loss				(11,819)	(11,819)
Stockholders' equity, ending balance at Mar. 31, 2022	$ 25	652,068	27	(607,495)	44,625
Stockholders' equity, ending balance (in shares) at Mar. 31, 2022	2,470
Stockholders' equity, beginning balance at Dec. 31, 2022	$ 32	656,095	27	(652,861)	3,293
Stockholders' equity, beginning balance (in shares) at Dec. 31, 2022	3,201
Consolidated Statements of Changes in Stockholders' Equity (Deficit)
Equity transaction costs		1			1
Stock-based compensation expense		1,049			1,049
Net loss				(8,700)	(8,700)
Stockholders' equity, ending balance at Mar. 31, 2023	$ 32	$ 657,145	$ 27	$ (661,561)	$ (4,357)
Stockholders' equity, ending balance (in shares) at Mar. 31, 2023	3,201

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net loss	$ (8,700)	$ (11,819)
Adjustments to reconcile net loss to net cash used in operating activities:
Non-cash other income, net	(2)	164
Non-cash interest income		(1)
Non-cash interest expense	55	93
Depreciation and amortization expense	21	78
Stock-based compensation	999	1,000
Other	314	10
Changes in operating assets and liabilities:
(Increase) decrease in other non-current assets	(1)	1
(Increase) decrease in accounts receivable, net and other receivables and prepaid expenses	(3,855)	2,297
Decrease (increase) in inventory	649	(1,123)
Increase (decrease) in accounts payable	1,547	(2,781)
Increase (decrease) in accrued expenses and other liabilities	3,482	(3,616)
Decrease in deferred revenue		(374)
(Increase) decrease in other non-current liabilities	(127)	14
Increase in income tax liabilities		187
Net cash used in operating activities	(5,618)	(15,870)
Cash flows from investing activities
Purchases of equipment	(3)	(35)
Other		(1)
Net cash used in investing activities	(3)	(36)
Cash flows from financing activities
Proceeds from issuance of ordinary shares and warrants		1,643
Proceeds from at-the-market facility		595
Repayments of long-term borrowings	(4,853)
Equity transaction costs	1
Equity transaction costs		(44)
Net cash (used in) provided by financing activities	(4,852)	2,194
Effects of exchange rate changes on the balance of cash held in foreign currencies	(143)	(164)
Net decrease in cash, cash equivalents and restricted cash	(10,616)	(13,876)
Cash, cash equivalents, and restricted cash at beginning of period	12,537	47,834
Cash, cash equivalents and restricted cash at end of period	1,921	33,958
Supplemental disclosure of cash flow information:
Interest paid	162	123
Taxes paid		1
Equity transaction costs included in accounts payable and accrued expenses	$ 640	$ 795

XML

Organization and Business Activities

3 Months Ended

Mar. 31, 2023

Organization and Business Activities

Organization and Business Activities

1.           Organization and Business Activities

Nabriva Therapeutics plc, or Nabriva Ireland, together with its wholly owned and consolidated subsidiaries, Nabriva Therapeutics GmbH, or Nabriva Austria, Nabriva Therapeutics US, Inc., Zavante Therapeutics, Inc., or Zavante, and Nabriva Therapeutics Ireland DAC, collectively, Nabriva, or the Company, is a biopharmaceutical company that historically engaged in the commercialization and research and development of novel anti-infective agents to treat serious infections. The Company has the commercial rights to two approved products, SIVEXTRO and XENLETA, as well as one development product candidate, CONTEPO. The Company’s headquarters are located at Alexandra House, Office 225/227, The Sweepstakes, Dublin 4, Ireland.

As part of a plan approved by its board of directors on January 4, 2023 to preserve its cash to adequately fund an orderly wind down of its operations, or the Cash Preservation Plan, the Company has reduced its operations to those necessary to: (i) make SIVEXTRO and XENLETA commercially available to wholesale customers; (ii) identify and explore, with the assistance of Torreya Capital, a range of strategic options, including the sale, license or other disposition of one or more of its assets, technologies or products, including XENLETA and CONTEPO; and (iii) wind down its business. The Company has no intention of resuming any active sales promotion or research and development activities. Also as part of the Cash Preservation Plan, the Company’s board of directors determined to terminate all of the Company’s employees not deemed necessary to execute an orderly wind down of the Company’s operations, including Theodore Schroeder, the Company’s former chief executive officer, and Steven Gelone, the Company’s former president and chief operating officer, each of whom was terminated effective January 15, 2023. The total cost of severance associated with the wind down of our operations is approximately $5.4 million, of which $1.3 million was recorded in research and development expenses and $4.1 million was recorded in the selling, general and administrative expenses in the statement of operations for the three months ended March 31, 2023. As of March 31, 2023 the remaining balance of severance costs associated with the wind down of our operations is approximately $3.8 million which is recorded in accrued expenses and other current liabilities in the consolidated balance sheet.

In January 2023, the Company settled all outstanding balances due to Hercules Capital, Inc., or Hercules, and removed all secured liens on all of its assets. The Company also terminated its agreement with Amplity Health, the contract sales organization responsible for promoting SIVEXTRO and XENLETA and, on January 31, 2023, entered into a letter agreement, or the Letter Agreement, relating to the Company’s Sales Promotion and Distribution Agreement, or the Distribution Agreement, with MSD International GmbH, or MSD, and Merck Sharp & Dohme Corp., or the Supplier, to begin transition responsibility for the promotion and distribution of SIVEXTRO back to Merck & Co. Inc., or Merck, as of June 30, 2023. Although the Company has ceased its active commercialization efforts, the Company expects to continue to make XENLETA and, for the remaining term of the Distribution Agreement, SIVEXTRO commercially available to wholesale customers.

As previously disclosed, the Company has retained Torreya Capital to advise on its exploration of a range of strategic options. While the Company continues to work with Torreya Capital on identifying and evaluating potential strategic options with the goal of maximizing value, the Company is currently focused, as part of its Cash Preservation Plan, on the sale of its existing assets, including XENLETA and CONTEPO. In the event that the Company’s board of directors determines that a liquidation and dissolution of the Company’s business approved by shareholders is the best method to maximize shareholder value, the Company would file proxy materials with the Securities and Exchange Commission and schedule an extraordinary meeting of its shareholders to seek approval of such a plan as required.

Liquidity

Since its inception, the Company has incurred net losses and generated negative cash flows from its operations which has resulted in a significant accumulated deficit to date, as well as total stockholders’ deficit. The Company has financed its operations through the sale of equity securities, convertible and term debt financings and research and development

support from governmental grants and proceeds from its licensing agreements and XENLETA and SIVEXTRO product sales. As of March 31, 2023, the Company had cash, cash equivalents and restricted cash of $1.9 million.

The Company follows the provisions of Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, Topic 205-40, Presentation of Financial Statements- Going Concern, which requires management to assess the Company’s ability to continue as a going concern for one year after the date the consolidated financial statements are issued. As a result, the Company’s liquidity condition and its existing financial obligations raise substantial doubt about the Company’s ability to continue as a going concern one year from the date that these financial statements are filed, if it does not monetize at least one of the Company’s assets. These financial statements do not include any adjustments relating to the recovery of the recorded assets or the classification of the liabilities that might be necessary should the Company be unable to continue as a going concern. The Company aims to complete an asset monetization deal; however, completing an asset monetization is not entirely within the Company’s control. Therefore, the Company may not have sufficient cash flows to fund its operations for the next twelve months after the date the consolidated financial statements are issued and therefore, management has concluded that substantial doubt exists about the Company’s ability to continue as a going concern for one year from the date these consolidated financial statements are issued.

While the Company has raised capital in the past, the ability to raise capital in future periods is not considered probable, as defined under the accounting standards. As such, under the requirements of ASC 205-40, management may not consider the potential for future capital raises in their assessment of the Company’s ability to meet its obligations for the next twelve months.

In May 2021, the Company entered into an Open Market Sale Agreement, or the Sale Agreement, with Jefferies, LLC, or Jefferies as agent, pursuant to which the Company may offer and sell ordinary shares, for aggregate gross sale proceeds of up to $50.0 million, from time to time through Jefferies, by any method permitted that is deemed an “at the market offering” as defined in Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended. As of

March 31, 2023, the Company has issued and sold an aggregate of 1,429,729 ordinary shares pursuant to the Sale Agreement and received gross proceeds of $33.9 million and net proceeds of $32.5 million, after deducting commissions to Jefferies and other offering expenses. From April 1, 2023 and through the date of this filing, the Company did not sell any shares under the Sale Agreement.

In September 2021, the Company entered into a purchase agreement, or Purchase Agreement, with Lincoln Park Capital Fund, LLC, or Lincoln Park, which, subject to the terms and conditions, provides that the Company has the right to sell to Lincoln Park and Lincoln Park is obligated to purchase up to $23.0 million of its ordinary shares. In addition, under the Purchase Agreement, the Company agreed to issue a commitment fee of 25,298 ordinary shares, or the Commitment Shares, as consideration for Lincoln Park entering into the Purchase Agreement and for the payment of $0.01 per Commitment Share. Under the Purchase Agreement, the Company may from time to time, at its discretion, direct Lincoln Park to purchase on any single business day, or a Regular Purchase, up to (i) 16,000 ordinary shares if the closing sale price of its ordinary shares is not below $0.25 per share on Nasdaq, (ii) 24,000 ordinary shares if the closing sale price of its ordinary shares is not below $50.00 per share on Nasdaq or (iii) 32,000 ordinary shares if the closing sale price of its ordinary shares is not below $75.00 per share on Nasdaq. Notwithstanding the foregoing, the Company may direct Lincoln Park to purchase on any single business day ordinary shares with a purchase price equal to or greater than $200,000 irrespective of the number of ordinary shares required to approximate that amount. In addition to Regular Purchases, the Company may also direct Lincoln Park to purchase other amounts as accelerated purchases or as additional accelerated purchases on the terms and subject to the conditions set forth in the Purchase Agreement. In any case, Lincoln Park’s commitment in any single Regular Purchase may not exceed $2.5 million absent a mutual agreement to increase such amount. As of March 31, 2023, the Company has issued and sold an aggregate of 320,000 ordinary shares pursuant to the Purchase Agreement and received net proceeds of $4.6 million. From April 1, 2023 and through the date of this filing, the Company did not sell any shares under the Purchase Agreement.

Based on its current operating plans, the Company expects that its existing cash, cash equivalents and restricted cash as of the filing date of this Quarterly Report on Form 10-Q together with its anticipated SIVEXTRO and XENLETA commercial sales receipts will be sufficient to enable the Company to fund its operating expenses, debt service obligations and capital expenditure requirements through the end of June 2023. The Company has based this

estimate on assumptions that may prove to be wrong, and the Company could use its capital resources sooner than expected. This estimate assumes, among other things, that the Company does not obtain any additional funding through grants and clinical trial support, collaboration agreements or from the monetization of one or more of its assets. The consolidated financial statements have been prepared assuming the Company will continue as a going concern, which contemplates the continuity of operations, the realization of assets and the satisfaction of liabilities and commitments in the normal course of business.

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2023

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

2.            Summary of Significant Accounting Policies

Basis of Preparation

The unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America, or US GAAP, for interim financial information, and US Securities and Exchange Commission, or SEC, regulations for quarterly reporting. The unaudited consolidated financial statements include the accounts of Nabriva Therapeutics plc and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

The accompanying consolidated financial information as of March 31, 2023 and for the three months ended March 31, 2023 and 2022 are unaudited. The December 31, 2022 balance sheet was derived from audited consolidated financial statements but does not include all disclosures required by US GAAP. The interim unaudited consolidated financial statements have been prepared on the same basis as the annual audited consolidated financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for the fair statement of the Company’s financial position as of March 31, 2023 and results of operations for the three months ended March 31, 2023 and 2022. The financial data and other information disclosed in these notes related to the three ended March 31, 2023 and 2022 are not necessarily indicative of the results to be expected for the year ending December 31, 2023, any other interim periods or any future year or period. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for the year ended December 31, 2022 contained in the Company’s Annual Report on Form 10-K, as filed with the SEC on April 17, 2023.

The Company’s significant accounting policies are described in Note 2 of the notes to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022, as filed with the SEC on April 17, 2023. Since the date of those financial statements, there have been no changes to the Company’s significant accounting policies.

Fair Value Measurement

As of March 31, 2023, and December 31, 2021, the Company did not hold any financial instruments as liabilities that were held at fair value. The Company believes that the carrying value of its long-term debt approximates fair value based on current interest rates. Receivables and accounts payable are carried at their historical cost which approximates fair value due to their short-term nature.

Reverse Stock Split

On September 16, 2022, the Company filed an Amended and Restated Memorandum and Articles of Association of the Company with the Irish Companies Registration Office and effected, a one-for-twenty five reverse stock split, or the Reverse Stock Split, of the Company’s ordinary shares. As a result of the Reverse Stock Split, every twenty five ordinary shares in the authorized and unissued and authorized and issued share capital of the Company were consolidated into one ordinary share. No fractional shares were issued in connection with the Reverse Stock Split. Shareholders who would otherwise be entitled to a fractional ordinary share were instead entitled to receive a proportional cash payment. All ordinary share, per share and related information presented in the consolidated financial statements and notes has been retroactively adjusted to reflect the Reverse Stock Split.

Recently Adopted Accounting Pronouncements

In June 2016, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) No. 2016-13, Financial Instruments-Credit Losses: Measurement of Credit Losses on Financial Instruments, or ASU 2016-13, which replaces the incurred loss impairment methodology under current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. ASU 2016-13 was subsequently updated by ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments, to clarify that entities should include recoveries when estimating the allowance for credit losses. This guidance was effective for the Company starting in fiscal year 2023. The Company adopted ASU 2016-13 as of January 1, 2023, which did not have a material impact on its financial statements.

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Inventory

3 Months Ended

Mar. 31, 2023

Inventory

Inventory

3.            Inventory

Inventory is stated at the lower of cost or net realizable value. Inventory is valued on a first-in, first-out basis and consists primarily of material costs, third-party manufacturing costs, and related transportation costs along the Company’s supply chain. The Company capitalizes inventory upon regulatory approval when, based on management’s judgment, future commercialization is considered probable and the future economic benefit is expected to be realized; otherwise, such costs are recorded as research and development expense. Costs of drug product to be consumed in any current or future clinical trials will continue to be recognized as research and development expense and costs of sample inventory is recorded as selling, general and administrative expense. The Company reviews inventories for realization on a quarterly basis and records provisions for estimated excess, slow-moving and obsolete inventory, as well as inventory with a carrying value in excess of net realizable value when necessary.

As a result of the Company’s intention to wind down operations, the Company made an assessment of the net realizable value of XENLETA inventory as of March 31, 2023 and December 31, 2022, based mainly on the potential to monetize any inventory that may be included in an asset sale of XENLETA. The Company will continue to make XENLETA commercially available in the US during the transition period as the Company prepares to wind down operations. In conjunction with XENLETA, the Company adjusted the value of inventory and prepaid inventory as of December 31, 2022 with an adjustment of $5.6 million. The Company is in ongoing discussions to sell the product rights of XENLETA, its related inventory, and potentially assign certain contractual commitments. SIVEXTRO finished goods are expected to sell through during the remainder of the Transition Services Agreement with Merck & Co through June 30, 2023.

Inventory reported at March 31, 2023 and December 31, 2022 consisted of the following:

		As of		As of
		March 31,		December 31,
(in thousands)		2023		2022
XENLETA raw materials	$	916	$	916
XENLETA work in process		6,003		4,658
XENLETA finished goods		632		640
Total XENLETA		7,551		6,214
SIVEXTRO finished goods		1,476		3,462
Total inventory	$	9,027	$	9,676

As of December 31, 2022, the Company had $0.9 million of prepaid inventory of XENLETA included in prepaid expenses in the consolidated balance sheet.

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Accrued Expenses and Other Current Liabilities

3 Months Ended

Mar. 31, 2023

Accrued Expenses and Other Current Liabilities

Accrued Expenses and Other Current Liabilities

4.           Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities include the following:

		As of March 31,		As of December 31,
(in thousands)		2023		2022
Research and development related costs	$	363	$	707
Payroll and related costs		5,123		1,737
Accounting, tax and audit services		568		552
Manufacturing and inventory		8,628		8,113
Product returns		774		784
Government rebates		2,234		2,028
Other accrued gross to net		2,194		2,129
Other		939		1,291
Total accrued expenses and other current liabilities	$	20,823	$	17,341

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Debt

3 Months Ended

Mar. 31, 2023

Debt

Debt

5.           Debt

In December 2018, the Company entered into a loan agreement, the Loan Agreement, by and among the Company, Nabriva Therapeutics Ireland DAC, and certain other subsidiaries of the Company and Hercules Capital, Inc., or Hercules, pursuant to which a term loan of up to an aggregate principal amount of $75.0 million was available to the Company. The Loan Agreement initially provided for an initial term loan advance of $25.0 million, which was funded in December 2018, and, at the Company’s option and subject to the occurrence of certain funding conditions, several additional tranches of which $10.0 million became available upon the approval by the FDA of the NDA for XENLETA, which was drawn down.

Prior to repayment, the term loan bore interest at an annual rate equal to the greater of 9.80% or 9.80% plus the prime rate of interest minus 5.50%. Effective September 22, 2022 the prime rate increased to 6.25%, which increased the interest on the loan with Hercules to 10.55%. The Loan Agreement provided for interest-only payments through July 1, 2021 and repayment of the outstanding principal balance of the term loan thereafter in monthly installments through June 1, 2023, or the Maturity Date. In addition, the Company was required to pay a fee of 6.95% of the aggregate amount of advances under the Loan Agreement at the Maturity Date, or the End of Term Fee. At the Company’s option, the Company was entitled to elect to prepay any portion of the outstanding term loan that is greater than or equal to $5.0 million by paying such portion of the principal balance and all accrued and unpaid interest thereon plus a prepayment charge equal to the following percentage of the principal amount being prepaid, or the Prepayment Fee: (i) 3.0% if the term loan was prepaid during the first 12 months following the initial closing, (ii) 2.0% if the term loan was prepaid after 12 months following the initial closing but before 24 months following the initial closing and (iii) 1.0% if the term loan was prepaid any time thereafter but prior to the Maturity Date.

On March 11, 2020, the Company entered into an amendment, or the Third Amendment, to its Loan Agreement with Hercules. Pursuant to the Third Amendment, the Company repaid $30.0 million of the $35.0 million in aggregate principal amount of debt outstanding under the Loan Agreement, or the Prepayment. The Company determined to enter into the Third Amendment following the effectiveness of a performance covenant in February 2020 under which it became obligated to either (1) achieve 80% of its net product revenue sales target over a trailing six-month period, or (2) maintain an amount of cash and cash equivalents in accounts pledged to Hercules plus a specified amount of eligible accounts receivables equal to the greater of the amount outstanding under the Loan Agreement or $40.0 million. Under the Third Amendment, the Company and Hercules agreed to defer the end of term loan charge payment of $2.1 million that would have otherwise become payable on the date of the Prepayment and to reduce the Prepayment Fee with respect to the Prepayment from $600,000 to $300,000 and to defer its payment, in each case, until June 1, 2023 or such earlier date on which all loans under the Loan Agreement were repaid or become due and payable. The Third Amendment also reset the revenue performance covenant to 70% of targeted revenue based on a revised net product revenue forecast and lowered the minimum liquidity requirement to $3.0 million in cash and cash equivalents, in each case, following the Prepayment. The new minimum liquidity requirement would not have applied if CONTEPO received regulatory approval from the FDA and the Company achieved at least 70% of its revised net product revenue targets under the Loan Agreement.

On June 2, 2021, the Company entered into a further amendment, or the Fourth Amendment, to its Loan and Security Agreement with Hercules. Pursuant to the Fourth Amendment, the date on which the Company was required to commence repaying principal under the Loan Agreement was extended to April 1, 2022. The Company began making interest and principal payments in April 2022. In addition, pursuant to the Fourth Amendment, the minimum liquidity requirement of $3.0 million in cash and cash equivalents would have been waived at any time the Company had recognized $15.0 million of net product revenue during the applicable trailing three months.

The Company incurred $1.3 million of costs in connection with the Loan Agreement which along with the initial fee of $0.7 million paid to Hercules was recorded as debt issuance cost and was being amortized as interest expense using the effective interest method over the term of the loan. The End of Term Fee on the remaining $3.1 million principal balance was being accrued as additional interest expense using the effective interest method over the term of the loan

On January 5, 2023, the Company repaid $4.5 million to Hercules Capital, including principal, accrued and unpaid interest, fees and other expenses, under its loan agreement. Effective at the time of repayment, the Hercules loan agreement was terminated, and Hercules released all security interests held on the assets of the Company and its subsidiaries.

Long-term debt as of March 31, 2023 and December 31, 2022 consisted of the following:

		As of		As of
		March 31,		December 31,
(in thousands)		2023		2022
Term loan payable	$	—	$	2,079
End of term fee		—		2,615
Unamortized debt issuance costs		—		(55)
Carrying value of term loan		—		4,639
Other debt		542		582
Less: Amounts due within one year		(197)		(4,833)
Total long-term debt	$	345	$	388

Maturities of long-term debt as of March 31, 2023 were as follows:

(in thousands)
2023	$	148
2024	$	197
2025	$	197

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Revenues

3 Months Ended

Mar. 31, 2023

Revenues

Revenues

6.           Revenues

	Three Months Ended
	March 31,
(in thousands)	2023		2022
Product revenue, net	$	7,561	$	7,040
Collaboration revenues		29		629
Research premium and grant revenue		—		351
Total revenues	$	7,590	$	8,020

For the three months ended March 31, 2023 and 2022, SIVEXTRO product revenues, net of gross-to-net accruals and adjustments for returns were $7.6 million and $7.0 million, respectively. The Company´s gross-to-net, or GTN, estimates are based upon information received from external sources (such as written or oral information obtained from the Company´s customers with respect to their period-end inventory levels and sales to end-users during the period), in combination with management’s informed judgments. Due to the inherent uncertainty of these estimates, the

actual amount incurred may be materially above or below the amount initially estimated when product revenues are originally recorded, then requiring prospective adjustments to the Company’s reported product revenues, net.

The Company sells its products to pharmaceutical wholesalers/distributors (i.e., the Company’s customers). The Company’s wholesalers/distributors in turn sell the Company’s products directly to clinics, hospitals, and private practices. Revenue from the Company’s product sales is recognized as physical delivery of product occurs (when the Company’s customer obtains control of the product), in return for agreed-upon consideration.

Collaboration revenues for the three months ended March 31, 2023 were less than $0.1 million. Collaboration revenues for the three months ended March 31, 2022 included $0.6 million related to the restructured China Region License Agreement, a portion of which is recognized over the estimated period the manufacturing collaboration and regulatory support will be provided to Sumitomo Pharmaceuticals (Suzhou).

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Share-Based Payments

3 Months Ended

Mar. 31, 2023

Share-Based Payments

Share-Based Payments

7.           Share-Based Payments

Stock Plan Activity

On April 2, 2015, the Company’s shareholders, management board and supervisory board adopted the Stock Option Plan 2015, or the SOP 2015, as amended. Each vested option grants the beneficiary the right to acquire one share in the Company. The vesting period for the options is four years following the grant date. On the last day of the last calendar month of the first year of the vesting period, 25% of the options attributable to each beneficiary are automatically vested. During the second, third and fourth years of the vesting period, the remaining 75% of the options vest on a monthly pro rata basis (i.e. 2.083% per month). Options granted under the SOP 2015 have a term of no more than ten years from the beneficiary’s date of participation. With the approval of the 2017 Share Incentive Plan, there were no further shares available for issuance under the SOP 2015. However, all outstanding awards under SOP 2015 will remain in effect and continue to be governed by the terms of the SOP 2015.

On July 26, 2017, the Company’s board of directors adopted the 2017 Share Incentive Plan, or the 2017 Plan, and the shareholders approved the 2017 Plan at the Company’s Extraordinary General Meeting of Shareholders on September 15, 2017. The 2017 Plan permitted the award of share options (both incentive and nonstatutory options), share appreciation rights, or SARs, restricted shares, restricted share units, or RSUs, and other share-based awards to the Company’s employees, officers, directors, consultants and advisers. The 2017 Plan is administered by the Company’s board of directors. Under the 2017 Plan, the Company granted RSUs which vest over a period of four years with 25% vesting upon the first anniversary of the grant date and on a monthly pro rata basis thereafter over the remaining three years. Lastly, the Company granted RSUs in 2018 to certain employees where vesting of the RSUs is subject to FDA approval of an NDA for CONTEPO. Fifty percent (50%) of each RSU award will vest upon FDA approval, and the remaining fifty percent (50%) will vest on the one-year anniversary of such approval. With the approval of the 2020 Share Incentive Plan, there were no further shares available for issuance under the 2017 Plan. However, all outstanding awards under 2017 Plan will remain in effect and continue to be governed by the terms of the 2017 Plan.

On March 12, 2019, the Company’s board of directors adopted the 2019 Inducement Share Incentive Plan, or the 2019 Inducement Plan and, subject to the adjustment provisions of the 2019 Inducement Plan, reserved 8,000 ordinary shares for issuance pursuant to equity awards granted under the 2019 Inducement Plan. In accordance with Nasdaq Listing Rule 5635(c)(4), awards under the 2019 Inducement Plan may only be made to individuals who were not previously employees or non-employee directors of the Company (or following such individuals’ bona fide period of non-employment with the Company), as an inducement material to the individuals’ entry into employment with the Company. On April 28, 2020, the board of directors resolved not to make any further awards under the 2019 Inducement Plan.

On March 4, 2020, the Company´s board of directors adopted the 2020 Share Incentive Plan, or the 2020 Plan, which was approved by the Company´s shareholders at the 2020 Annual General Meeting of Shareholders in July 2020, or the 2020 AGM. As of the date of the 2020 AGM, the total number of ordinary shares reserved for issuance under the 2020 Plan was for the sum of 37,200 ordinary shares, plus the number of the Company´s ordinary shares that remained available for grant under the 2017 Plan as of immediately prior to the 2020 AGM and the number of ordinary shares

subject to awards granted under the 2017 Plan and the 2015 SOP, that expire, terminate or are otherwise surrendered, cancelled, forfeited or repurchased by the Company at their original issuance price pursuant to a contractual repurchase right. The 2020 Plan provides for the grant of incentive share options, non-statutory share options, share appreciation rights, restricted share awards, restricted share units, other share-based and cash-based awards and performance awards. Under the 2020 Plan the Company granted RSUs to certain employees that vest in three six-month increments beginning in January 2021 and ending in January 2022. The Company also granted RSUs to certain employees, where vesting of the RSUs was subject to individual performance goals. The Company granted RSUs to certain employees which vest as to 25% of the shares underlying the RSUs in four annual increments. Additionally, the Company granted 280 RSUs to its former Chief Medical Officer and to its former Chief Financial Officer, which vest as to 50% of the shares underlying the RSUs each year over the term of their respective consulting agreements. In January 2022, option awards to purchase 23,680 ordinary shares with an exercise price of $11.25 per share and 11,836 RSUs were granted under the 2020 Plan, which as of the 2022 Annual General Meeting of Shareholders, in the case of the options, have automatically converted to cash-settled share appreciation rights and, in the case of the RSUs, represent the right to receive the economic equivalent of one ordinary share of the Company in cash on the applicable vesting date. As a result, such grants awarded under the 2020 Plan are liability classified. Stock-based compensation expense for liability classified option awards and RSUs under the 2020 Plan was $0.2 million for the three months ended March 31, 2023.

At March 31, 2023, 15,073 ordinary shares excluding the liability classified awards were available for future issuance under the 2020 Plan.

On December 9, 2020, the Company´s board of directors adopted without stockholder approval the 2021 Inducement Share Incentive Plan, or the 2021 Inducement Plan and, subject to the adjustment provisions of the 2021 Inducement Plan, reserved 8,000 ordinary shares for issuance pursuant to equity awards granted under the 2021 Inducement Plan. In accordance with Nasdaq Listing Rule 5635(c)(4), awards under the 2021 Inducement Plan may only be made to individuals who were not previously employees or non-employee directors of the Company (or following such individuals’ bona fide period of non-employment with the company), as an inducement material to the individuals’ entry into employment with the Company. In September 2021, the Company’s board of directors adopted an amendment to the 2021 Inducement Plan that increased the amount of shares reserved for issuance under the plan from 8,000 shares to 20,000 shares. Options and SARs granted will be exercisable at such times and subject to such terms and conditions as the board may specify in the applicable option agreement; provided, however, that no option or SAR will be granted with a term in excess of ten years. The board will also determine the terms and conditions of restricted shares and RSUs, including the conditions for vesting and repurchase (or forfeiture) and the issue price, if any.

Stock Options

The following table summarizes information regarding the Company’s stock option awards for the three months ended March 31, 2023:

				Weighted
			Weighted	Average
			average	Remaining	Aggregate
			exercise	Contractual	intrinsic
			price in	Term	value
	Options		$ per share	(in years)	(in thousands)
Outstanding as of January 1, 2023	75,873	$	351.24	7.7		—
Granted	—		—			—
Exercised	—		—			—
Cancelled and forfeited	(1,347)		341.84			—
Outstanding as of March 31, 2023	74,526	$	347.06	7.5	$	—
Vested and exercisable as of March 31, 2023	65,364	$	391.51	6.9	$	—

The Company has 74,526 option grants outstanding at March 31, 2023 with exercise prices ranging from $11.25 per share to $2,750.00 per share. As of March 31, 2023, there was $0.2 million of total unrecognized

compensation expense related to unvested stock options, which will be recognized over the weighted-average remaining vesting period of 1.5 years.

Restricted Stock Units (“RSUs”)

The following table summarizes information regarding the Company’s restricted share unit awards for the three months ended March 31, 2023:

			Weighted
			average grant date fair
	RSUs		value in $ per share
Outstanding as of January 1, 2023	38,635	$	41.89
Granted	—		—
Vested and issued	(63)		383.33
Forfeited	(1,314)		92.34
Outstanding as of March 31, 2023	37,258	$	39.54

The Company has total unrecognized compensation costs of $0.1 million associated with RSUs which are expected to be recognized over the awards average remaining vesting period of 2.4 years.

Stock-based Compensation

The following table presents stock-based compensation expense included in the Company’s consolidated statements of operations:

	Three Months Ended
	March 31,
(in thousands)	2023		2022
Research and development expense	$	164	$	94
Selling, general and administrative expense		835		906
Total stock-based compensation expense	$	999	$	1,000

Employee Stock Purchase Plan

The Company’s board of directors adopted, and in August 2018 the Company’s stockholders approved, the 2018 employee stock purchase plan, or the 2018 ESPP. The maximum aggregate number of shares of ordinary shares that may be purchased under the 2018 ESPP is 2,000 shares, or the ESPP Share Pool, subject to adjustment as provided for in the 2018 ESPP. The 2018 ESPP allowed eligible employees to purchase shares at a 15% discount to the lower of the closing share price at the beginning and end of the six-month offering periods commencing November 1 and ending April 30 and commencing May 1 and ending October 31 of each year. The Company suspended the 2018 ESPP in April 2020.

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Income Tax Expense

3 Months Ended

Mar. 31, 2023

Income Tax Expense

Income Tax Expense

8.           Income Tax Expense

For the three months ended March 31, 2023, the Company did not record a tax expense. For the three months ended March 31, 2022, the Company recorded a tax expense of $0.4 million.

Deferred tax assets and deferred tax liabilities are recognized based on temporary differences between the financial reporting and tax bases of assets and liabilities using statutory rates. Management of the Company has evaluated the positive and negative evidence bearing upon the realizability of its deferred tax assets, including the Company’s history of losses and concluded that it is more likely than not that the Company will not recognize the benefits of its deferred tax assets. On the basis of this evaluation the Company has recorded a valuation allowance against all of its deferred tax assets at March 31, 2023 and December 31, 2022.

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Earnings (Loss) per Share

3 Months Ended

Mar. 31, 2023

Earnings (Loss) per Share

Earnings (Loss) per Share

9.         Earnings (Loss) per Share

Basic and Diluted Loss per Share

For the three months ended March 31, 2023 and 2022, basic and diluted net loss per share was determined by dividing net loss by the weighted average number of shares outstanding during the period. Diluted net loss per share is the same as basic net loss per share during the periods presented as the effects of the Company’s potential ordinary share equivalents are antidilutive since the Company had net losses for each period presented below.

	Three Months Ended
	March 31,
(in thousands, except share and per share data)	2023		2022
Net loss for the period	$	(8,700)	$	(11,819)
Weighted average number of shares outstanding		3,201,495		2,351,766
Basic and diluted loss per share	$	(2.72)	$	(5.03)

The following ordinary share equivalents were excluded from the calculations of diluted loss per share as their effect would be anti-dilutive since the Company had net losses for each period presented below:

	Three Months Ended
	March 31,
	2023	2022
Stock option awards	74,526	78,082
Restricted share units	37,258	46,555
Warrants	262,384	424,774

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Significant Arrangements and License Agreements

3 Months Ended

Mar. 31, 2023

Significant Arrangements and License Agreements

Significant Arrangements and License Agreements

10.         Significant Arrangements and License Agreements

Er-Kim License Agreement

On July 13, 2022, the Company entered into an exclusive Distribution Agreement with Er-Kim Pharmaceuticals, or Er-Kim, for the oral and intravenous formulations of XENLETA. Under the terms of the agreement, Er-Kim gains exclusive rights to distribute XENLETA in nine countries, including Bulgaria, Croatia, Czechia, Greece, Hungary, Poland, Romania, Slovakia and Slovenia. Er-Kim also may distribute XENLETA to an additional five countries through a NPU program. The Company will be the exclusive supplier of XENLETA to Er-Kim.

Sales Promotion and Distribution Agreement with Merck & Co.

On July 15, 2020, the Company entered into a Distribution Agreement, with MSD and Supplier, each a subsidiary of Merck. Under the Distribution Agreement and subject to the satisfaction of certain conditions, MSD appointed the Company as its sole and exclusive distributor of certain products containing tedizolid phosphate as the active ingredient previously marketed and sold by Supplier and MSD under the trademark SIVEXTRO® for injection, intravenous use and oral use, or the Products, in the United States and its territories, or the SIVEXTRO Territory. SIVEXTRO is an oxazolidinone-class antibacterial indicated in adults and pediatric patients 12 years of age and older for the treatment of acute bacterial skin and skin structure infections caused by certain susceptible Gram-positive microorganisms.

On April 12, 2021, in accordance with the terms of the Distribution Agreement, the Company began exclusive distribution of SIVEXTRO under its own National Drug Code, or NDC, and the Company recognizes 100% of net product sales of SIVEXTRO in its results of operations. Subject to applicable law, the Company is entitled to determine the final selling prices of the Products charged by it to its customers at its sole discretion, subject to an overall annual limit on price increases, and will be solely responsible for sales contracting and all market access activities, including bidding, hospital listing and reimbursement. The Company is responsible for all costs related to the promotion, sale and distribution of the Products by it, as well as all costs required to meet its staffing obligations under the Distribution Agreement. Prior to the execution of the Letter Agreement, the Company was obligated to use commercially reasonable

efforts to promote and distribute the Products and to maximize the sales of the Products throughout the SIVEXTRO Territory and utilized a combination of its employees and assistance from Amplity Health, a contract sales organization, to comply with this obligation.

On January 31, 2023, the Company entered into the Letter Agreement which, among other things, converted its exclusive license to promote, distribute and commercialize SIVEXTRO to a non-exclusive license and provided for the termination of the Distribution Agreement, effective June 30, 2023.

China Region License Agreement

In March 2018, the Company entered into the China Region License Agreement, with Sinovant Sciences, Ltd., or Sinovant, an affiliate of Roivant Sciences, Ltd., to develop and commercialize lefamulin in the greater China region. As part of the China Region License Agreement, Nabriva Therapeutics Ireland DAC and Nabriva Therapeutics GmbH, the Company’s wholly owned subsidiaries, granted Sinovant an exclusive license to develop and commercialize, and a non-exclusive license to manufacture, certain products containing lefamulin, or the China Region Licensed Products, in the People’s Republic of China, Hong Kong, Macau, and Taiwan, together the Extended China Territory. In May 2021, the Company entered into an assignment, assumption and novation agreement, or the Assignment Agreement, pursuant to which the Company consented to the assignment by Sinovant, an affiliate of Roivant Sciences, Ltd., of the China Region License Agreement to develop and commercialize lefamulin in the greater China region to Sumitomo Pharmaceuticals (Suzhou), a wholly-owned subsidiary of Sumitomo Dainippon Pharma Co., Ltd., or Sumitomo. Pursuant to the Assignment Agreement, the Company agreed to release Sinovant and its affiliates from their obligations under the China Region License Agreement and consented to Sumitomo Pharmaceuticals (Suzhou)’s assumption of such obligations. In addition, Sumitomo has agreed to guarantee all of the obligations of Sumitomo Pharmaceuticals (Suzhou) under the China Region License Agreement.

Under the China Region License Agreement, Sumitomo Pharmaceuticals (Suzhou) and the Company’s subsidiaries have established a joint development committee, or the JDC, to review and oversee development and commercialization plans in the Extended China Territory. The China Region License Agreement includes milestone events consisting of a non-refundable $5.0 million upfront payment, an additional $91.5 million in milestone payments upon the achievement of certain regulatory and commercial milestone events related to lefamulin for CABP, plus an additional $4.0 million in milestone payments if any China Region Licensed Product receives a second or any subsequent regulatory approval in the People’s Republic of China. The Company has received the $5.0 million upfront payment, a $1.5 million payment for the submission of a clinical trial application, or CTA, by Sinovant to the Chinese Food and Drug Administration, which was received in the first quarter of 2019 and a $5.0 million milestone payment in the third quarter of 2019 in connection with the FDA approval for lefamulin. The Company will also be eligible to receive low double-digit royalties on sales, if any, of China Region Licensed Products in the Extended China Territory. In December 2020, the Company announced the restructuring of its China Region License Agreement. The restructured agreement provided for additional manufacturing collaboration and regulatory support to be provided to the contract counterparty by the Company that is expected to help expedite the delivery of XENLETA to patients in greater China. The restructured agreement also accelerated $3.0 million of the $5.0 million milestone payment to the Company that was previously payable upon regulatory approval of XENLETA in China, including a non-refundable upfront payment of $1.0 million which was received in the fourth quarter of 2020 and a $1.0 million milestone achieved during the first quarter of 2021. During 2021, management determined that the remaining $1.0 million milestone payment was probable of achievement and therefore the Company is recognizing the $3.0 million of accelerated payments under the restructured agreement as collaboration revenue in the consolidated statements of operations over the estimated period the manufacturing collaboration and regulatory support will be provided to the contract counterparty based on the proportional performance of the underlying performance obligation. The remaining milestones of $86.0 million are tied to additional regulatory approvals and annual sales targets. The future regulatory and commercial milestone payments under the China Region License Agreement will be recorded during the period the milestones become probable of achievement.

Except for the manufacturing collaboration and regulatory support discussed above, Sumitomo Pharmaceuticals (Suzhou) will be solely responsible for all costs related to developing, obtaining regulatory approval of and commercializing China Region Licensed Products in the Extended China Territory and is obligated to use commercially

reasonable efforts to develop, obtain regulatory approval for and commercialize China Region Licensed Products in the Extended China Territory. The Company is obligated to use commercially reasonable efforts to supply, pursuant to supply agreements to be negotiated by the parties, to Sumitomo Pharmaceuticals (Suzhou) a sufficient supply of lefamulin for Sumitomo Pharmaceuticals (Suzhou) to manufacture finished drug products for development and commercialization of the China Region Licensed Products in the Extended China Territory.

Unless earlier terminated, the China Region License Agreement will expire upon the expiration of the last royalty term for the last China Region Licensed Product in the Extended China Territory, which the Company expects will occur in 2033. Following the expiration of the last royalty term, the license granted to Sumitomo Pharmaceuticals (Suzhou) will become non-exclusive, fully-paid, royalty-free and irrevocable. The China Region License Agreement may be terminated in its entirety by Sumitomo Pharmaceuticals (Suzhou) upon 180 days’ prior written notice at any time. Either party may, subject to specified cure periods, terminate the China Region License Agreement in the event of the other party’s uncured material breach. Either party may also terminate the China Region License Agreement under specified circumstances relating to the other party’s insolvency. The Company has the right to terminate the China Region License Agreement immediately if Sumitomo Pharmaceuticals (Suzhou) does not reach certain development milestones by certain specified dates (subject to specified cure periods). The China Region License Agreement contemplates that the Company will enter into ancillary agreements with Sumitomo Pharmaceuticals (Suzhou), including clinical and commercial supply agreements and a pharmacovigilance agreement.

Sunovion License Agreement

In March 2019, the Company entered into the Sunovion License Agreement with Sunovion. As part of the Sunovion License Agreement, Nabriva Therapeutics Ireland DAC, the Company’s wholly owned subsidiary, granted Sunovion an exclusive license under certain patent rights, trademark rights and know-how to commercialize certain products containing XENLETA in the forms clinically developed by the Company or any of its affiliates, or the Sunovion Licensed Products, in Canada in all uses in humans in CABP and in any other indication for which the Sunovion Licensed Products have received regulatory approval in Canada. Under the Sunovion License Agreement, Sunovion and DAC established a joint development committee, or the Sunovion JDC, to review and oversee regulatory approval and commercialization plans in Canada. Sunovion will be solely responsible for all costs related to obtaining regulatory approval of and commercializing Sunovion Licensed Products in Canada and is obligated to use commercially reasonable efforts to develop, obtain regulatory approval for, and commercialize Sunovion Licensed Product in Canada.

On November 7, 2019, the Company, through Sunovion, submitted a New Drug Submission, or NDS. Health Canada determined there was a screening deficiency in December 2019 and a response from the Company/Sunovion was provided on December 18, 2019 and acknowledged by Health Canada on January 13, 2020. The NDS approval occurred on July 10, 2020.

The Company identified two performance obligations at inception: (1) the delivery of the exclusive license to Sunovion, which the Company has determined is a distinct license of functional intellectual property that Sunovion has obtained control of; and, (2) the participation in the Sunovion JDC. The $1.0 million non-refundable upfront payment was allocated entirely to the delivery of the license as the Sunovion JDC deliverable was deemed to be de minimis. With the NDS approval that occurred on July 10, 2020, the Company received a regulatory milestone payment of $0.5 million. Any future regulatory and commercial milestone payments under the Sunovion License Agreement will be recorded during the period the milestones become probable of achievement.

Named Patient Program Agreement with WE Pharma Ltd.

On June 30, 2020 the Company announced that WE Pharma Ltd., or WEP Clinical, a specialist pharmaceutical services company, had signed an exclusive agreement with the Company to supply XENLETA on a named patient or expanded access basis in certain countries outside of the US, China, Canada, Bulgaria, Croatia, Czechia, Greece, Hungary, Poland, Romania, Slovakia and Slovenia. The Named Patient Program, or NPP, is designed to ensure that physicians, contingent on meeting the necessary eligibility criteria and receiving approval, can request IV or oral XENLETA on behalf of patients who live in certain countries where it is not yet available and have an unmet medical

need. On January 9, 2023, the Company provided WEP Clinical with notice of its intent to terminate the agreement in connection with the orderly wind down of its operations.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies

Commitments and Contingencies

11.         Commitments and Contingencies

Future minimum contractual obligations and commitments are as follows:

	Year Ending December 31,
(in thousands)	Total		Remainder of 2023		2024		2025		2026		2027		Thereafter
Operating lease obligations	$	498		498		—		—		—		—	$	—
XENLETA API purchase		39,746		3,368		3,368		4,776		4,776		4,776		18,682
Other contractual commitments		6,064		3,790		1,385		889		—		—		—
Total contractual commitments and contingencies	$	46,308	$	7,656	$	4,753	$	5,665	$	4,776	$	4,776	$	18,682

The Company has contractual commitments related primarily to contracts entered into with contract manufacturing organizations and contract research organizations in connection with the commercial manufacturing of XENLETA. The amounts included in the above table are based on the existing contractual terms included within the agreements. Also, some of these contracts are subject to early termination clauses exercisable at the discretion of the Company.

Due to the Company’s intention to wind down operations and pursue the asset sales of XENLETA and CONTEPO, some amounts have been accrued for at March 31, 2023 and December 31, 2022 to comply with ASC 330-10-35-17, Inventory Purchase Commitments, regarding potential losses that a reporting entity may sustain as a result of firm purchase commitments. As of March 31, 2023, the Company had $4.3 million accrued within accrued expenses and other current liabilities, relating to the estimated losses under the XENLETA purchase commitments. Some of these future contractual commitments and contingencies include contractual language that may mitigate the payments for the commitments and contingencies. Additionally, as part of the asset sale process some of the other contractual commitments may be transferred as part of any potential transactions, possibly releasing the Company from any future commitments. There cannot, however, be any assurance that the Company will be able to identify, negotiate or complete a sale of any of the Company’s assets or, if such an asset sale transaction does occur, that any such transaction will include release of, or otherwise mitigate, the Company’s contractual commitments under its agreements on favorable terms or at all.

XENLETA API Supply

On August 4, 2021, our wholly-owned subsidiary, Nabriva Therapeutics Ireland DAC, entered into an amendment, or the First Amendment, to its API Supply Agreement, or the Hovione Supply Agreement, with Hovione Limited, or Hovione, which provides for the long-term commercial supply of the active pharmaceutical ingredients, or API, for XENLETA. Under the First Amendment, Hovione agreed to cancel the Company’s May 2021 purchase order for XENLETA API, which represented the Company’s minimum purchase requirement under the Hovione Supply Agreement. In addition, pursuant to the First Amendment, Hovione agreed to reduce the Company’s annual minimum purchase requirements for XENLETA API to no minimum purchase requirement in 2021, by 50% from 2022 to 2024 and by 25% in 2025, in consideration for cash payments totaling €3.2 million and the right to a low single-digit royalty on total net sales of XENLETA in the United States for a period commencing on August 4, 2021 and ending on November 22, 2030, or the Royalty Term, which royalty payments shall be no greater than an aggregate of €10.0 million. If the aggregate amount of royalties payments received by Hovione under the First Amendment is less than an aggregate of €4.0 million, the Company is obligated to pay Hovione the difference in a lump sum payment at the end of the Royalty Term. In addition, pursuant to the First Amendment, Hovione agreed to extend the duration of the Hovione Supply Agreement from November 22, 2025 to November 22, 2030 with annual minimum purchase requirements for 2026 to 2030 at the newly agreed annual minimum purchase amount for 2025. Pursuant to the First Amendment, upon the occurrence of certain events of insolvency for us, any unpaid minimum annual commitment amounts and royalty amounts under the agreement will become immediately due and payable.

On November 11, 2022, the Company’s wholly-owned subsidiary, Nabriva Therapeutics Ireland DAC, entered into an amendment, or the Third Amendment, to the Hovione Supply Agreement. Under the Third Amendment, Hovione agreed to reduce the Company’s annual minimum purchase requirements for XENLETA API for certain geographies. In consideration for the reduced minimum purchase requirements, the Company granted Hovione the right to a low single-digit royalty on total net sales of XENLETA by the Company’s licensees outside of the United States to the extent that the commercial product of XENLETA sold by such licensees is manufactured with API obtained from a third party (or any finished commercial product containing API obtained from a third party) other than Hovione during the terms of the agreement.

Zavante Obligations

In connection with the acquisition of Zavante in July 2018, the Company is obligated to pay up to $97.5 million in contingent consideration to the former Zavante shareholders, of which $25.0 million would become payable upon the first approval of a NDA from the FDA for CONTEPO for any indication, or the Approval Milestone Payment, and an aggregate of up to $72.5 million would become payable upon the achievement of specified sales milestones, or the Net Sales Milestone Payments. The Company’s shareholders have approved the issuance of the Company’s ordinary shares in settlement of potential milestone payment obligations that may become payable in the future to former Zavante stockholders, including the Approval Milestone Payment which will be settled in Company ordinary shares. The Company also has the right to settle the Net Sales Milestone Payments in Company ordinary shares, except as otherwise provided in the Agreement and Plan of Merger, dated July 23, 2018, by and among Nabriva Therapeutics plc and certain of its subsidiaries and Zavante Therapeutics, Inc. and Cam Gallagher, solely in his capacity as representative of the former Zavante stockholders, or the “Merger Agreement”.

The Company is obligated to pay $3.0 million in cash upon marketing approval by the FDA with respect to any oral, intravenous or other form of fosfomycin, or the Zavante Products, and milestone payments of up to $26.0 million that may be settled in ordinary shares in the aggregate upon the occurrence of various specified levels of net sales with respect to the Zavante Products. In addition, Zavante is obligated to make annual royalty payments of a mid-single-digit percentage of net sales of Zavante Products, subject to adjustment based on net sales thresholds and with such percentage reduced to low single-digits if generic fosfomycin products account for half of the applicable market on a product-by-product and country-by-country basis. Zavante will also pay a mid-single-digit percentage of transaction revenue in connection with the consummation of the grant, sale, license or transfer of market exclusivity rights for a qualified infectious disease product (within the meaning of the 21^st Century Cures Act) related to a Zavante Product.

Litigation

As of the date of the filing this Quarterly Report on Form 10-Q, there are no material outstanding legal proceedings against the Company or its current officers or directors.

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Subsequent Events

3 Months Ended

Mar. 31, 2023

Subsequent Events

Subsequent Events

12.         Subsequent Events

The Company has evaluated all subsequent events through the filing date of this Form 10-Q with the SEC, to ensure that this filing includes appropriate disclosure of events both recognized in the financial statements as of March 31, 2023, and events which occurred subsequently but were not recognized in the financial statements. There were no subsequent events which required recognition, adjustment to, or disclosure in the financial statements.

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

Summary of Significant Accounting Policies

Basis of Preparation

Basis of Preparation

The unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America, or US GAAP, for interim financial information, and US Securities and Exchange Commission, or SEC, regulations for quarterly reporting. The unaudited consolidated financial statements include the accounts of Nabriva Therapeutics plc and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

The accompanying consolidated financial information as of March 31, 2023 and for the three months ended March 31, 2023 and 2022 are unaudited. The December 31, 2022 balance sheet was derived from audited consolidated financial statements but does not include all disclosures required by US GAAP. The interim unaudited consolidated financial statements have been prepared on the same basis as the annual audited consolidated financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for the fair statement of the Company’s financial position as of March 31, 2023 and results of operations for the three months ended March 31, 2023 and 2022. The financial data and other information disclosed in these notes related to the three ended March 31, 2023 and 2022 are not necessarily indicative of the results to be expected for the year ending December 31, 2023, any other interim periods or any future year or period. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto for the year ended December 31, 2022 contained in the Company’s Annual Report on Form 10-K, as filed with the SEC on April 17, 2023.

The Company’s significant accounting policies are described in Note 2 of the notes to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022, as filed with the SEC on April 17, 2023. Since the date of those financial statements, there have been no changes to the Company’s significant accounting policies.

Fair Value Measurement

Fair Value Measurement

As of March 31, 2023, and December 31, 2021, the Company did not hold any financial instruments as liabilities that were held at fair value. The Company believes that the carrying value of its long-term debt approximates fair value based on current interest rates. Receivables and accounts payable are carried at their historical cost which approximates fair value due to their short-term nature.

Reverse Stock Split

Reverse Stock Split

On September 16, 2022, the Company filed an Amended and Restated Memorandum and Articles of Association of the Company with the Irish Companies Registration Office and effected, a one-for-twenty five reverse stock split, or the Reverse Stock Split, of the Company’s ordinary shares. As a result of the Reverse Stock Split, every twenty five ordinary shares in the authorized and unissued and authorized and issued share capital of the Company were consolidated into one ordinary share. No fractional shares were issued in connection with the Reverse Stock Split. Shareholders who would otherwise be entitled to a fractional ordinary share were instead entitled to receive a proportional cash payment. All ordinary share, per share and related information presented in the consolidated financial statements and notes has been retroactively adjusted to reflect the Reverse Stock Split.

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In June 2016, the Financial Accounting Standards Board issued Accounting Standards Update (ASU) No. 2016-13, Financial Instruments-Credit Losses: Measurement of Credit Losses on Financial Instruments, or ASU 2016-13, which replaces the incurred loss impairment methodology under current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. ASU 2016-13 was subsequently updated by ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments, to clarify that entities should include recoveries when estimating the allowance for credit losses. This guidance was effective for the Company starting in fiscal year 2023. The Company adopted ASU 2016-13 as of January 1, 2023, which did not have a material impact on its financial statements.

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Inventory (Tables)

3 Months Ended

Mar. 31, 2023

Inventory

Schedule of inventory

		As of		As of
		March 31,		December 31,
(in thousands)		2023		2022
XENLETA raw materials	$	916	$	916
XENLETA work in process		6,003		4,658
XENLETA finished goods		632		640
Total XENLETA		7,551		6,214
SIVEXTRO finished goods		1,476		3,462
Total inventory	$	9,027	$	9,676

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Accrued Expenses and Other Current Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Accrued Expenses and Other Current Liabilities

Schedule of accrued expenses and other liabilities

		As of March 31,		As of December 31,
(in thousands)		2023		2022
Research and development related costs	$	363	$	707
Payroll and related costs		5,123		1,737
Accounting, tax and audit services		568		552
Manufacturing and inventory		8,628		8,113
Product returns		774		784
Government rebates		2,234		2,028
Other accrued gross to net		2,194		2,129
Other		939		1,291
Total accrued expenses and other current liabilities	$	20,823	$	17,341

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Debt (Tables)

3 Months Ended

Mar. 31, 2023

Debt

Schedule of long-term debt

		As of		As of
		March 31,		December 31,
(in thousands)		2023		2022
Term loan payable	$	—	$	2,079
End of term fee		—		2,615
Unamortized debt issuance costs		—		(55)
Carrying value of term loan		—		4,639
Other debt		542		582
Less: Amounts due within one year		(197)		(4,833)
Total long-term debt	$	345	$	388

Schedule of maturities of long-term debt

(in thousands)
2023	$	148
2024	$	197
2025	$	197

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Revenues (Tables)

3 Months Ended

Mar. 31, 2023

Revenues

Summary of revenue by type

	Three Months Ended
	March 31,
(in thousands)	2023		2022
Product revenue, net	$	7,561	$	7,040
Collaboration revenues		29		629
Research premium and grant revenue		—		351
Total revenues	$	7,590	$	8,020

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Share-Based Payments (Tables)

3 Months Ended

Mar. 31, 2023

Share-Based Payments

Summary of information regarding stock option awards

				Weighted
			Weighted	Average
			average	Remaining	Aggregate
			exercise	Contractual	intrinsic
			price in	Term	value
	Options		$ per share	(in years)	(in thousands)
Outstanding as of January 1, 2023	75,873	$	351.24	7.7		—
Granted	—		—			—
Exercised	—		—			—
Cancelled and forfeited	(1,347)		341.84			—
Outstanding as of March 31, 2023	74,526	$	347.06	7.5	$	—
Vested and exercisable as of March 31, 2023	65,364	$	391.51	6.9	$	—

Summary of information regarding restricted stock awards

			Weighted
			average grant date fair
	RSUs		value in $ per share
Outstanding as of January 1, 2023	38,635	$	41.89
Granted	—		—
Vested and issued	(63)		383.33
Forfeited	(1,314)		92.34
Outstanding as of March 31, 2023	37,258	$	39.54

Schedule of allocation of share-based compensation expense

	Three Months Ended
	March 31,
(in thousands)	2023		2022
Research and development expense	$	164	$	94
Selling, general and administrative expense		835		906
Total stock-based compensation expense	$	999	$	1,000

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Earnings (Loss) per Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings (Loss) per Share

Schedule of basic and diluted loss per share

	Three Months Ended
	March 31,
(in thousands, except share and per share data)	2023		2022
Net loss for the period	$	(8,700)	$	(11,819)
Weighted average number of shares outstanding		3,201,495		2,351,766
Basic and diluted loss per share	$	(2.72)	$	(5.03)

Schedule of ordinary share equivalents excluded from the calculations of diluted loss per share

	Three Months Ended
	March 31,
	2023	2022
Stock option awards	74,526	78,082
Restricted share units	37,258	46,555
Warrants	262,384	424,774

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies

Schedule of future minimum contractual obligations and commitments

	Year Ending December 31,
(in thousands)	Total		Remainder of 2023		2024		2025		2026		2027		Thereafter
Operating lease obligations	$	498		498		—		—		—		—	$	—
XENLETA API purchase		39,746		3,368		3,368		4,776		4,776		4,776		18,682
Other contractual commitments		6,064		3,790		1,385		889		—		—		—
Total contractual commitments and contingencies	$	46,308	$	7,656	$	4,753	$	5,665	$	4,776	$	4,776	$	18,682

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Organization and Business Activities (Details) - USD ($)	1 Months Ended			3 Months Ended
	Jan. 31, 2023	Sep. 30, 2021	May 31, 2021	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Liquidity
Severance costs	$ 5,400,000			$ 3,800,000
Cash and cash equivalents and restricted cash				$ 1,921,000	$ 33,958,000	$ 12,537,000	$ 47,834,000
Shares issued					$ 2,221,000
Research and development
Liquidity
Severance costs	1,300,000
Selling, general and administrative
Liquidity
Severance costs	$ 4,100,000
Lincoln Park Capital Fund, LLC | Purchase agreement | Ordinary shares
Liquidity
Number of shares issued				320,000
Net proceeds from sale of stock				$ 4,600,000
Commitment shares		25,298
Commitment share price		$ 0.01
Regular purchase		$ 2,500,000
Lincoln Park Capital Fund, LLC | Purchase agreement | Ordinary shares | Minimum
Liquidity
Shares issued		200,000
Lincoln Park Capital Fund, LLC | Purchase agreement | Ordinary shares | Maximum
Liquidity
Shares issued		$ 23,000,000.0
Lincoln Park Capital Fund, LLC | Purchase agreement | Ordinary shares | Share Price Not Below $0.25 Per Share
Liquidity
Share price		$ 0.25
Lincoln Park Capital Fund, LLC | Purchase agreement | Ordinary shares | Share Price Not Below $0.25 Per Share | Maximum
Liquidity
Number of shares issued		16,000
Lincoln Park Capital Fund, LLC | Purchase agreement | Ordinary shares | Share Price Not Below $2.00 Per Share
Liquidity
Share price		$ 50.00
Lincoln Park Capital Fund, LLC | Purchase agreement | Ordinary shares | Share Price Not Below $2.00 Per Share | Maximum
Liquidity
Number of shares issued		24,000
Lincoln Park Capital Fund, LLC | Purchase agreement | Ordinary shares | Share Price Not Below $3.00 Per Share
Liquidity
Share price		$ 75.00
Lincoln Park Capital Fund, LLC | Purchase agreement | Ordinary shares | Share Price Not Below $3.00 Per Share | Maximum
Liquidity
Number of shares issued		32,000
Open Market Sale Agreement | Jefferies LLC | Ordinary shares
Liquidity
Number of shares issued				1,429,729
Proceeds from at-the-market facility				$ 32,500,000
Aggregate gross sale proceeds for ordinary shares				$ 33,900,000
Open Market Sale Agreement | Jefferies LLC | Ordinary shares | Maximum
Liquidity
Aggregate gross sale proceeds for ordinary shares			$ 50,000,000.0

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Summary of Significant Accounting Policies - Reverse Stock Split (Details)	Sep. 16, 2022 shares
Summary of Significant Accounting Policies
Conversion ratio of common stock to ordinary shares	0.04%
Fractional shares	0

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Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Inventory
Total inventory	$ 9,027	$ 9,676
XENLETA
Inventory
Raw materials	916	916
Work in process	6,003	4,658
Finished goods	632	640
Total inventory	7,551	6,214
Obsolete inventory non-cash reserve		5,600
SIVEXTRO
Inventory
Finished goods	$ 1,476	$ 3,462

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Inventory - Prepaid Inventory (Details) $ in Millions	Dec. 31, 2022 USD ($)
Prepaid expense
Inventory [Line Items]
Prepaid inventory	$ 0.9

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Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Accrued expenses and other liabilities
Research and development related costs	$ 363	$ 707
Payroll and related costs	5,123	1,737
Accounting, tax and audit services	568	552
Manufacturing and inventory	8,628	8,113
Product returns	774	784
Government rebates	2,234	2,028
Other accrued gross to net	2,194	2,129
Other	939	1,291
Total accrued expenses and other current liabilities	20,823	$ 17,341
Other contractual commitments	$ 6,064

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Debt - Summary (Details) - Term loan - USD ($)					1 Months Ended	3 Months Ended
	Jan. 05, 2023	Sep. 22, 2022	Jun. 02, 2021	Mar. 11, 2020	Feb. 29, 2020	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2018
Debt
End of term fee							$ 2,079,000
Loan Agreement
Debt
Maximum borrowing capacity								$ 75,000,000.0
Principal amount of advances outstanding				$ 35,000,000.0
Interest rate (as a percent)						9.80%
Fee due at maturity, as a percentage of aggregate advances						6.95%
The amount in excess of which prepayments may be made						$ 5,000,000.0
Repayment of debt	$ 4,500,000			$ 30,000,000.0
Minimum cash and cash equivalents in accounts to be maintained			$ 3,000,000.0
Net product revenue			$ 15,000,000.0
Trailing period			3 months		6 months
Percent of net product revenue sales target				70.00%	80.00%
Minimum liquidity requirement					$ 40,000,000.0
Minimum amount to be maintained in cash and cash equivalents				$ 3,000,000.0
End of term loan charge payment				2,100,000
End of term loan charge				$ 300,000	$ 600,000
Loan origination costs						1,300,000
Initial fee paid to lender						700,000
End of term fee						$ 3,100,000
Loan Agreement | Prime rate
Debt
Variable interest rate margin (as a percent)						9.80%
Variable rate adjustment (as a percent)						5.50%
Reference rate for effective interest rate (as percent)		6.25%
Loan Agreement | Initial Advance
Debt
Principal amount of advances outstanding								$ 25,000,000.0
Loan Agreement | Tranche 7 Advance
Debt
Additional tranches						$ 10,000,000.0
Loan Agreement | Prepayment during the first 12 months following initial closing
Debt
Prepayment penalty as a percentage of the amount being repaid						3.00%
Loan Agreement | Prepayment after the first 12 months following initial closing but before 24 months
Debt
Prepayment penalty as a percentage of the amount being repaid						2.00%
Loan Agreement | Prepayment after the first 24 months following initial closing but before maturity
Debt
Prepayment penalty as a percentage of the amount being repaid						1.00%
Hercules Capital Inc | Loan Agreement
Debt
Interest rate (as a percent)		10.55%

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Debt - Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Long-term debt
Less: Amounts due within one year	$ (197)	$ (4,833)
Long-term debt	345	388
Maturities of long-term debt
2023	148
2024	197
2025	197
Term loan
Long-term debt
Term loan payable		2,079
End of term fee		2,615
Unamortized debt issuance costs		(55)
Carrying value of term loan		4,639
Other debt
Long-term debt
Carrying value of term loan	$ 542	$ 582

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Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue
Revenue accounted for under Topic 606	$ 7,590	$ 8,020
Product revenue, net
Revenue
Revenue accounted for under Topic 606	7,561	7,040
Collaboration revenue
Revenue
Revenue accounted for under Topic 606	29	629
Collaboration revenue | Sumitomo Pharmaceuticals (Suzhou) | License Agreement
Revenue
Revenue accounted for under Topic 606	$ 100	600
Research premium and grant revenue
Revenue
Revenue accounted for under Topic 606		$ 351

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Revenues - Summary of Gross-To-Net ("GTN") Adjustments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
SIVEXTRO
Disaggregation of Revenue [Line Items]
GTN accrual adjustments	$ 7.6	$ 7.0

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Share-Based Payments - Stock Plan Activity (Details) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2020 tranche	Dec. 31, 2018	Dec. 31, 2022 $ / shares	Sep. 30, 2021 shares	Aug. 31, 2021 shares	Dec. 09, 2020 shares	Mar. 04, 2020 shares	Mar. 12, 2019 shares
Share-Based Payments
Share-based compensation expense | $	$ 999	$ 1,000
Stock Options
Share-Based Payments
Options exercise price (in dollars per share) | $ / shares	$ 347.06				$ 351.24
Stock Option Plan 2015 | Stock Options
Share-Based Payments
Vesting period	4 years
Stock Option Plan 2015 | Stock Options | Vesting period, year one
Share-Based Payments
Percentage that vests during the period	25.00%
Stock Option Plan 2015 | Stock Options | Vesting period, years 2-4
Share-Based Payments
Percentage that vests during the period	75.00%
Monthly vesting percentage	2.083%
Stock Option Plan 2015 | Maximum | Stock Options
Share-Based Payments
Exercise period	10 years
2017 Share Incentive Plan | Restricted Share Units ("RSUs")
Share-Based Payments
Vesting period	4 years
Percentage that vests during the period	25.00%
2017 Share Incentive Plan | Restricted Share Units ("RSUs") | Immediate vesting upon regulatory approval | CONTEPO
Share-Based Payments
Percentage that vests during the period				50.00%
2017 Share Incentive Plan | Restricted Share Units ("RSUs") | Vesting upon the one-year-anniversary of FDA approval | CONTEPO
Share-Based Payments
Percentage that vests during the period				50.00%
2019 Inducement Plan | Ordinary shares
Share-Based Payments
Shares reserved for future issuance										8,000
2020 Share Incentive Plan | Stock Options
Share-Based Payments
Options granted during the period		23,680
Options exercise price (in dollars per share) | $ / shares		$ 11.25
Share-based compensation expense | $	$ 200
2020 Share Incentive Plan | Restricted Share Units ("RSUs")
Share-Based Payments
Restricted stock granted during the period		11,836
2020 Share Incentive Plan | Restricted Share Units ("RSUs") | Chief Executive Officer
Share-Based Payments
Percentage that vests during the period	50.00%
Restricted stock granted during the period	280
2020 Share Incentive Plan | Restricted Share Units ("RSUs") | Employees
Share-Based Payments
Vesting period			6 months
Percentage that vests during the period			25.00%
Number of vesting periods | tranche			3
2020 Share Incentive Plan | Ordinary shares
Share-Based Payments
Shares reserved for future issuance	15,073
2020 Share Incentive Plan | Ordinary shares | Maximum
Share-Based Payments
Shares reserved for future issuance									37,200
2021 Inducement Share Incentive Plan | Maximum
Share-Based Payments
Term of Awards	ten years
2021 Inducement Share Incentive Plan | Ordinary shares
Share-Based Payments
Shares reserved for future issuance						20,000	8,000	8,000

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Share-Based Payments - Stock Options (Details) - Stock Options - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Options
Outstanding at beginning of year (in shares)	75,873
Cancelled and forfeited (in shares)	(1,347)
Outstanding at end of year (in shares)	74,526	75,873
Vested and exercisable at end of year (in shares)	65,364
Weighted average exercise price in $ per share
Outstanding balance at beginning of year (in dollars per share)	$ 351.24
Cancelled and forfeited (in dollars per share)	341.84
Outstanding balance at end of year (in dollars per share)	347.06	$ 351.24
Vested and exercisable balance at end of year (in dollars per share)	$ 391.51
Weighted Average Remaining Contractual Term (in years)
Weighted average remaining contractual term, outstanding	7 years 6 months	7 years 8 months 12 days
Weighted average remaining contractual term, vested and exercisable	6 years 10 months 24 days
Additional disclosures
Total unrecognized compensation related to unvested options	$ 0.2
Recognition period	1 year 6 months
Exercise Price Range From 11.25 To 2,750.00
Additional disclosures
Exercise price maximum range	$ 2,750.00
Exercise price minimum range	$ 11.25

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Share-Based Payments - Restricted Stock Units (Details) - Restricted Share Units ("RSUs") $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) $ / shares shares
Restricted Stock Units
Number of shares outstanding | shares	38,635
Vested and issued | shares	(63)
Forfeited | shares	(1,314)
Number of shares outstanding | shares	37,258
Weighted average grant date fair value per share
Weighted average grant date fair value per share at the beginning | $ / shares	$ 41.89
Vested and issued | $ / shares	383.33
Forfeited | $ / shares	92.34
Weighted average grant date fair value per share at the end | $ / shares	$ 39.54
Additional disclosures
Total unrecognized compensation related to unvested RSUs | $	$ 0.1
Recognition period	2 years 4 months 24 days

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Share-Based Payments - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-Based Payments
Share-based compensation expense	$ 999	$ 1,000
Research and development
Share-Based Payments
Share-based compensation expense	164	94
Selling, general and administrative
Share-Based Payments
Share-based compensation expense	$ 835	$ 906

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Share-Based Payments - Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan - shares	1 Months Ended	3 Months Ended
	Aug. 31, 2018	Mar. 31, 2023
Share-Based Payments
Maximum number of shares authorized under plan (in shares)	2,000
Purchase discount as a percentage of current market price		15.00%

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Income Tax Expense (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Income Tax Expense
Income tax expense (benefit)	$ 354

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Earnings (Loss) per Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Basic and Diluted Loss per Share
Net loss for the period	$ (8,700)	$ (11,819)
Weighted average number of shares outstanding, Basic	3,201,495	2,351,766
Weighted average number of shares outstanding, Diluted	3,201,495	2,351,766
Basic loss ($ per share)	$ (2.72)	$ (5.03)
Diluted loss ($ per share)	$ (2.72)	$ (5.03)

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Earnings (Loss) per Share - Anti-Dilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Stock Options
Anti-dilutive stock options
Ordinary share equivalents excluded from the calculations of diluted earnings per share	74,526	78,082
Restricted Share Units ("RSUs")
Anti-dilutive stock options
Ordinary share equivalents excluded from the calculations of diluted earnings per share	37,258	46,555
Warrants
Anti-dilutive stock options
Ordinary share equivalents excluded from the calculations of diluted earnings per share	262,384	424,774

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Significant Arrangements and License Agreements (Details) $ in Thousands			1 Months Ended		3 Months Ended						12 Months Ended
	Apr. 12, 2021	Jul. 10, 2020 USD ($)	Dec. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2021 USD ($)	Jul. 13, 2022 country	May 31, 2021 USD ($)
License Agreement
Number of countries, exclusive rights are distributed. | country												9
Number of additional countries rights are distributed | country												5
Revenue accounted for under Topic 606					$ 7,590	$ 8,020
SIVEXTRO
License Agreement
Percentage of net product sales recognized	100.00%
Sunovion Pharmaceutics Canada, Inc. | Collaboration revenue - Upfront payment
License Agreement
Revenue accounted for under Topic 606				$ 1,000
Sumitomo Pharmaceuticals (Suzhou) | Collaboration revenue - Upfront payment | Approval of XENLETA
License Agreement
Revenue accounted for under Topic 606			$ 5,000
Additional revenue recognized					$ 3,000
License Agreement | Sunovion Pharmaceutics Canada, Inc. | NDS Approval
License Agreement
Revenue accounted for under Topic 606		$ 500
License Agreement | Sumitomo Pharmaceuticals (Suzhou)
License Agreement
Upfront payment													$ 5,000
Notice period for termination of agreement					180 days
License Agreement | Sumitomo Pharmaceuticals (Suzhou) | Achievement of certain regulatory and commercial milestones
License Agreement
Maximum contingent milestone payment													91,500
License Agreement | Sumitomo Pharmaceuticals (Suzhou) | Subsequent regulatory approval
License Agreement
Maximum contingent milestone payment													$ 4,000
License Agreement | Sumitomo Pharmaceuticals (Suzhou) | Clinical trial application submission
License Agreement
Proceeds from license agreement, milestone										$ 1,500
License Agreement | Sumitomo Pharmaceuticals (Suzhou) | FDA approval
License Agreement
Revenue accounted for under Topic 606									$ 5,000
License Agreement | Sumitomo Pharmaceuticals (Suzhou) | Approval of XENLETA
License Agreement
Remaining probable of achieving											$ 1,000
License Agreement | Sumitomo Pharmaceuticals (Suzhou) | Additional regulatory approvals and annual sales targets
License Agreement
Remaining milestone payments					$ 86,000
License Agreement | Sumitomo Pharmaceuticals (Suzhou) | Collaboration revenue - Upfront payment
License Agreement
Revenue accounted for under Topic 606			$ 3,000					$ 1,000		$ 5,000
Milestone achieved							$ 1,000

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Commitments and Contingencies - Additional Lease Disclosures and Other Commitments and Contingencies (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Operating lease obligations
Total	$ 498
2023	498
XENLETA API purchase
Total	39,746
2023	3,368
2024	3,368
2025	4,776
2026	4,776
2027	4,776
Thereafter	18,682
Other contractual commitments
Total	6,064
2023	3,790
2024	1,385
2025	889
Future minimum contractual obligations and commitments
Total contractual commitments and contingencies	46,308
2023	7,656
2024	4,753
2025	5,665
2026	4,776
2027	4,776
Thereafter	18,682
Accrued expense and other current liabilities
Future minimum contractual obligations and commitments
Total contractual commitments and contingencies	$ 4,300

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Commitments and Contingencies (Details) € in Millions, $ in Millions		3 Months Ended
	Aug. 04, 2021 EUR (€)	Mar. 31, 2023	Jul. 31, 2018 USD ($)
Zavante Therapeutics
Acquisition of Zavante
Milestone payment receivable prior acquisition			$ 3.0
Threshold milestone payment that may be settled in ordinary shares			26.0
Zavante Therapeutics | Maximum
Acquisition of Zavante
Contingent consideration			97.5
Hovione Supply Agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Cash payments made for amendment of agreement | €	€ 3.2
Threshold aggregate royalty payments | €	4.0
Acquisition of Zavante
Percentage of annual minimum purchase requirement reduction in 2021		0.00%
Percentage of annual minimum purchase requirement reduction 2022 to 2024		50.00%
Percentage of annual minimum purchase requirement reduction in 2025		25.00%
Hovione Supply Agreement | Maximum
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Royalty payment | €	€ 10.0
Approval Milestone Payment | Zavante Therapeutics
Acquisition of Zavante
Contingent consideration			25.0
Net Sales Milestone Payments | Zavante Therapeutics
Acquisition of Zavante
Contingent consideration			$ 72.5