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 June 30, 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 September 11, 2023, the registrant had 3,230,837 ordinary shares outstanding.

NABRIVA THERAPEUTICS plc

INDEX TO REPORT ON FORM 10-Q

		Page
	PART I — FINANCIAL INFORMATION
Item 1:	Financial Statements	3
	Consolidated Balance Sheets as of June 30, 2023 and December 31, 2022 (unaudited)	3
	Consolidated Statements of Operations for the three and six months ended June 30, 2023 and 2022 (unaudited)	4
	Consolidated Statements of Changes in Stockholders’ (Deficit) Equity for the three and six months ended June 30, 2023 and 2022 (unaudited)	5
	Consolidated Statements of Cash Flows for the six months ended June 30, 2023 and 2022 (unaudited)	6
	Notes to the Unaudited Consolidated Financial Statements	7
Item 2:	Management’s Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3:	Quantitative and Qualitative Disclosures About Market Risk	25
Item 4:	Controls and Procedures	25
	PART II — OTHER INFORMATION
Item 1:	Legal Proceedings	26
Item 1A:	Risk Factors	26
Item 2:	Unregistered Sales of Equity Securities and Use of Proceeds	27
Item 3:	Defaults Upon Senior Securities	27
Item 4:	Mine Safety Disclosures	27
Item 5:	Other Information	27
Item 6:	Exhibits	28
SIGNATURES		29

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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 plans to execute a planned orderly wind down of our business;

● the sufficiency of our current cash resources;

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

● compliance with current or prospective governmental regulations;

● general economic and market conditions;

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

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)	June 30, 2023		December 31, 2022
Assets
Current assets:
Cash and cash equivalents	$	2,182	$	12,414
Restricted cash		73		123
Accounts receivable, net and other receivables		4,439		6,742
Inventory		—		9,676
Prepaid expenses		3,258		2,149
Total current assets		9,952		31,104
Property and equipment, net		246		280
Intangible assets, net		1		3
Other non-current assets		379		378
Total assets	$	10,578	$	31,765
Liabilities and stockholders´ (deficit) equity
Current liabilities:
Current portion of long-term debt	$	196	$	4,833
Accounts payable		14,026		5,431
Accrued expense and other current liabilities		11,981		17,341
Total current liabilities		26,203		27,605
Non-current liabilities:
Long-term debt		344		388
Other non-current liabilities		352		479
Total non-current liabilities		696		867
Total liabilities		26,899		28,472
Commitments and contingencies (Note 11)
Stockholders’ (deficit) equity:
Ordinary shares, nominal value $0.01, 12,000,000 ordinary shares authorized at June 30, 2023 and December 31, 2022; 3,230,837 and 3,201,417 issued and outstanding at June 30, 2023 and December 31, 2022, respectively		32		32
Preferred shares, nominal value $0.01, 100,000,000 shares authorized at June 30, 2023 and December 31, 2022; None issued and outstanding		—		—
Additional paid in capital		657,243		656,095
Accumulated deficit		(673,623)		(652,861)
Accumulated other comprehensive income		27		27
Total stockholders’ (deficit) equity		(16,321)		3,293
Total liabilities and stockholders’ (deficit) equity	$	10,578	$	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				Six Months Ended
	June 30,				June 30,
(in thousands, except share and per share data)	2023		2022		2023		2022
Revenues:
Product revenue, net	$	2,574	$	8,680	$	10,135	$	15,720
Collaboration revenue		—		96		29		725
Research premium and grant revenue		(331)		415		(331)		766
Total revenues		2,243		9,191		9,833		17,211
Operating expenses:
Cost of revenues		(9,074)		(4,455)		(13,512)		(7,816)
Research and development expenses		(1,086)		(4,088)		(3,711)		(7,605)
Selling, general and administrative expenses		(4,107)		(11,047)		(13,107)		(23,747)
Total operating expenses		(14,267)		(19,590)		(30,330)		(39,168)
Loss from operations		(12,024)		(10,399)		(20,497)		(21,957)
Other (expense) income:
Other (expense) income, net		(39)		(92)		(70)		216
Interest income (expense), net		1		(198)		(194)		(413)
Loss before income taxes		(12,062)		(10,689)		(20,761)		(22,154)
Income tax expense		—		(385)		(1)		(739)
Net loss	$	(12,062)	$	(11,074)	$	(20,762)	$	(22,893)
Loss per share
Basic and diluted loss per share	$	(3.73)	$	(4.38)	$	(6.43)	$	(9.38)
Weighted average number of shares:
Basic and diluted		3,230,827		2,529,523		3,227,629		2,441,136

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

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NABRIVA THERAPEUTICS plc

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

	Ordinary shares
(in thousands)	Number of shares	Amount		Additional paid in capital		Accumulated other comprehensive income		Accumulated deficit		Total stockholders’ (deficit) equity
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
Issuance of ordinary shares	114		1		817		—		—		818
Shares issued in connection with the vesting of restricted stock units	—		—		1		—		—		1
Equity transaction costs	—		—		(82)		—		—		(82)
Stock-based compensation expense	—		—		317		—		—		317
Net loss	—		—		—		—		(11,074)		(11,074)
June 30, 2022	2,584	$	26	$	653,121	$	27	$	(618,569)	$	34,605
	Ordinary shares
(in thousands)	Number of shares	Amount		Additional paid in capital		Accumulated other comprehensive income		Accumulated deficit		Total stockholders’ (deficit) equity
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)
Shares issued in connection with the vesting of restricted stock units	30		—		—		—		—		—
Stock-based compensation expense	—		—		98		—		—		98
Net loss	—		—		—		—		(12,062)		(12,062)
June 30, 2023	3,231	$	32	$	657,243	$	27	$	(673,623)	$	(16,321)

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)

	Six Months Ended June 30,
(in thousands)	2023		2022
Cash flows from operating activities
Net loss	$	(20,762)	$	(22,893)
Adjustments to reconcile net loss to net cash used in operating activities:
Non-cash other income, net		4		3
Non-cash interest income		—		(4)
Non-cash interest expense		55		222
Impairment of inventory		7,531		—
Depreciation and amortization expense		39		155
Stock-based compensation		1,097		1,334
Other		483		(112)
Changes in operating assets and liabilities:
(Increase) decrease in other non-current assets		(1)		2
Decrease (increase) in accounts receivable, net and other receivables and prepaid expenses		1,194		(692)
Decrease (increase) in inventory		2,145		(1,026)
Increase (decrease) in accounts payable		8,595		(3,265)
Decrease in accrued expenses and other liabilities		(5,360)		(2,155)
Decrease in deferred revenue		—		(374)
Decrease in other non-current liabilities		(127)		(104)
Net cash used in operating activities		(5,107)		(28,909)
Cash flows from investing activities
Purchases of equipment		(3)		(99)
Changes in restricted cash		(50)		(53)
Net cash used in investing activities		(53)		(152)
Cash flows from financing activities
Proceeds from issuance of ordinary shares and warrants		—		2,046
Proceeds from at-the-market facility		—		993
Repayments of unexercised warrant nominal values		—		(406)
Repayments of long-term borrowings		(4,853)		(949)
Other		1		(282)
Net cash (used in) provided by financing activities		(4,852)		1,402
Effect of exchange rate changes on cash, cash equivalents, and restricted cash		(270)		(12)
Net decrease in cash, cash equivalents and restricted cash		(10,282)		(27,671)
Cash, cash equivalents, and restricted cash at beginning of period		12,537		47,834
Cash, cash equivalents and restricted cash at end of period	$	2,255	$	20,163
Supplemental disclosure of cash flow information:
Interest paid	$	162	$	240
Taxes paid	$	—	$	853

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 an approved product, XENLETA, as well as a 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 previously reduced its operations to those necessary to: (i) make SIVEXTRO and XENLETA commercially available to wholesale customers; (ii) identify and explore strategic options, including the sale, license or other disposition of one or more of its assets, technologies or products; and (iii) wind down its business. The Company has no intention of resuming any active sales promotion or research and development activities. As part of the Cash Preservation Plan, the Company terminated all of its employees.

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 selling, general and administrative expenses in the statement of operations for the six months ended June 30, 2023. As of June 30, 2023, the remaining unpaid balance of severance costs is $2.7 million, which is recorded in accrued expenses and other current liabilities in the consolidated balance sheet and which is expected to be paid prior to the end of 2023.

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. The Company stopped selling SIVEXTRO when its Distribution Agreement with Merck expired on June 30, 2023.

On July 30, 2023, the Company entered into an Asset Purchase Agreement with Sumitomo Pharma Co., Ltd., or Sumitomo, pursuant to which Sumitomo agreed to (i) purchase, among other things, the Company’s assets and rights related to the development, manufacture, marketing and commercialization of XENLETA in the People’s Republic of China, Hong Kong, Macau and Taiwan, or collectively the Territory, and (ii) assume certain liabilities related to the acquired assets. The transactions contemplated by the Asset Purchase Agreement closed on July 30, 2023. At the closing, Sumitomo made an upfront cash payment of $15.0 million, of which (i) $1.8 million was held back as security for potential indemnification claims, (ii) $10.4 million was paid by Sumitomo, on behalf of the Company, to certain of the Company’s contract manufacturing organizations to settle and discharge the remaining obligations under such agreements and (iii) $2.8 million was paid to the Company in cash. The cash received by the Company is not reflected on the balance sheet at June 30, 2023.

As part of the transactions contemplated by the Asset Purchase Agreement, the Company terminated its license agreement and certain related agreements with certain affiliates of Sumitomo, including Sumitomo Pharmaceuticals (Suzhou), pursuant to which the Company previously had granted an exclusive license to develop and commercialize, and a non-exclusive license to manufacture, certain products containing lefamulin in the Territory. During a period of time that may extend to March 31, 2024, the Company has agreed to provide certain post-closing services to Sumitomo, including to continue and maintain the application for marketing approval for XENLETA filed by Nabriva Ireland with the National Medical Products Administration, or NMPA, of the People’s Republic of China, the import drug license for

7

lefamulin filed with the NMPA and the existing market approval for lefamulin in the United States. In exchange for these obligations, Sumitomo has agreed to fully reimburse the Company for expenses incurred with respect to the post-closing activities.

Following the closing of the transactions with Sumitomo, the Company is currently focused on the sale of its remaining assets, including CONTEPO.

Liquidity

Since adopting the Cash Preservation Plan in January 2023, the Company has significantly reduced its expenses. As of June 30, 2023, the Company had cash, cash equivalents and restricted cash of $2.3 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. 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. 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. The 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 previously had sources of liquidity under an “at-the-market” equity financing facility with Jefferies LLC and an equity line of credit facility with Lincoln Park Capital Fund, LLC. The Company has not raised any proceeds under such facilities during 2023 and has no plans to raise any proceeds prior to the wind down of its business.

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 will be sufficient to enable the Company to fund its operating expenses and debt service obligations through the end of October 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 from the sale of its assets.

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 June 30, 2023 and for the three and six months ended June 30, 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 June 30, 2023 and results of operations for the three and six months ended June 30, 2023 and 2022. The financial data and other information disclosed in these notes

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related to the three and six months ended June 30, 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 material changes to the Company’s significant accounting policies.

Fair Value Measurement

As of June 30, 2023 and December 31, 2022, 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.

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

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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 June 30, 2023 and December 31, 2022. As of June 30, 2023, the Company determined that the net realizable value of XENLETA inventory was not recoverable and recorded an impairment charge of $7.5 million related to the remaining amounts of XENLETA inventory held, the expense for which was recorded in cost of revenues for the three and six months ended June 30, 2023. As of December 31, 2022, the Company adjusted the value of inventory and prepaid inventory with an adjustment of $5.6 million related to XENLETA, the expense for which was recorded in cost of revenues for the year ended December 31, 2022. The Company stopped selling SIVEXTRO when its Distribution Agreement with Merck expired on June 30, 2023. As of June 30, 2023, the Company concluded the net realizable value of SIVEXTRO inventory was not recoverable and recorded an impairment charge of $17,000, the expense for which was recorded in cost of revenues for the three and six months ended June 30, 2023.

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Inventory reported at June 30, 2023 and December 31, 2022 consisted of the following:

		As of		As of
		June 30,		December 31,
(in thousands)		2023		2022
XENLETA raw materials	$	—	$	916
XENLETA work in process		—		4,658
XENLETA finished goods		—		640
Total XENLETA		—		6,214
SIVEXTRO finished goods		—		3,462
Total inventory	$	—	$	9,676

The Company had no prepaid inventory as of June 30, 2023. 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 as of that date.

4.           Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities included the following:

		As of June 30,		As of December 31,
(in thousands)		2023		2022
Research and development related costs	$	247	$	707
Payroll and related costs		3,042		1,737
Accounting, tax and audit services		281		552
Manufacturing and inventory		2,566		8,113
Product returns		568		784
Government rebates		2,102		2,028
Other accrued gross to net		2,231		2,129
Other		944		1,291
Total accrued expenses and other current liabilities	$	11,981	$	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. 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 in full.

Prior to repayment as described below, 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, later extended to April 1, 2022, 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.

In March 2020, the Company repaid $30.0 million of the $35.0 million in aggregate principal amount of debt outstanding under the Loan Agreement. 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 fee associated with the prepayment to $300,000 and to defer such fees until June 1, 2023 or such earlier date on which all loans under the Loan Agreement were repaid or become due and payable.

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The Company incurred a total of $1.3 million of costs in connection with the Loan Agreement, as amended, 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 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, representing all principal, accrued and unpaid interest, fees and other expenses, due under the Loan Agreement. Effective at the time of repayment, the Loan Agreement was terminated, and Hercules released all security interests held on the assets of the Company and its subsidiaries.

The Company previously obtained loans from the Austrian Research Promotion Agency (Österreichische Forschungsförderungsgesellschaft mbH, or FFG) at below-market interest rates, which loans are due on December 31, 2025.

Long-term debt as of June 30, 2023 and December 31, 2022 consisted of the following:

		As of		As of
		June 30,		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
FFG loans		540		582
Less: Amounts due within one year		(196)		(4,833)
Total long-term debt	$	344	$	388

Maturities of long-term debt as of June 30, 2023 were as follows:

(in thousands)
Remaining six months of 2023	$	148
2024	$	196
2025	$	196

6.           Revenues

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands)	2023		2022		2023		2022
Product revenue, net	$	2,574	$	8,680	$	10,135	$	15,720
Collaboration revenues		—		96		29		725
Research premium and grant revenue		(331)		415		(331)		766
Total revenues	$	2,243	$	9,191	$	9,833	$	17,211

For the three months ended June 30, 2023 and 2022, product revenues, net of gross-to-net accruals and adjustments for returns, were $2.6 million and $8.7 million, respectively. For the six months ended June 30, 2023 and 2022, product revenues, net of gross-to-net accruals and adjustments for returns, were $10.1 million and $15.7 million, respectively. The Company´s gross-to-net 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.

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

Collaboration revenues for the three months ended June 30, 2022 were less than $0.1 million and no such revenues were recorded for the three months ended June 30, 2023. Collaboration revenues for the six months ended June 30, 2023 were less than $0.1 million. Collaboration revenues for the six months ended June 30, 2022 included $0.6 million related to the China Region License Agreement with an affiliate of Sumitomo (see Note 10).

Research premium and grant revenue include government research premiums, non-refundable grants, collaboration revenues and the benefit of government loans at below-market rates. Research premium and grant revenue for the three and six months ended June 30, 2023 were a $0.3 million contra-revenue due to a partial reversal of a European research and development grant. Research premium and grant revenue for the three and six months ended June 30, 2022 were $0.4 million and $0.8 million, respectively.

7.           Share-Based Payments

The Company has share-based compensation plans, which are more fully described in Note 10, Share Based Payments, to the consolidated financial statements in the Company’s Annual Report on Form 10-K filed with the SEC on April 17, 2023. During the six months ended June 30, 2023, the Company did not grant any share-based awards. The following table presents stock-based compensation expense included in the Company’s consolidated statements of operations:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands)	2023		2022		2023		2022
Research and development expense	$	—	$	67	$	164	$	161
Selling, general and administrative expense		98		267		933		1,173
Total stock-based compensation expense	$	98	$	334	$	1,097	$	1,334

8.           Income Tax Expense

For the six months ended June 30, 2023, the Company recorded a tax expense of less than $0.1 million. For the three months ended June 30, 2023, the Company did not record a tax expense. For the three and six months ended June 30, 2022, the Company recorded a tax expense of $0.4 million and $0.7 million, respectively.

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 June 30, 2023 and December 31, 2022.

9.         Loss per Share

Basic and Diluted Loss per Share

For the three and six months ended June 30, 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

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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				Six Months Ended
	June 30,				June 30,
(in thousands, except share and per share data)	2023		2022		2023		2022
Net loss for the period	$	(12,062)	$	(11,074)	$	(20,762)	$	(22,893)
Weighted average number of shares outstanding		3,230,827		2,529,523		3,227,629		2,441,136
Basic and diluted loss per share	$	(3.73)	$	(4.38)	$	(6.43)	$	(9.38)

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		Six Months Ended
	June 30,		June 30,
	2023	2022	2023	2022
Stock option awards	70,796	78,048	72,752	78,048
Restricted share units	36,705	46,901	37,199	46,901
Warrants	262,384	262,393	262,384	262,393

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

In July 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 MSD and Supplier under the trademark SIVEXTRO® for injection, intravenous use and oral use.

In April 2021, in accordance with the terms of the Distribution Agreement, the Company began exclusive distribution of SIVEXTRO under its own National Drug Code and the Company recognized 100% of net product sales of SIVEXTRO in its results of operations.

On January 31, 2023, the Company converted its exclusive license to promote, distribute and commercialize SIVEXTRO to a non-exclusive license and provided for the termination of the Distribution Agreement, which became effective on 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

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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 subsidiary of 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 agreed to guarantee all of the obligations of Sumitomo Pharmaceuticals (Suzhou) under the China Region License Agreement.

In December 2020, the Company restructured its China Region License Agreement to provide for additional manufacturing collaboration and regulatory support to be provided to the contract counterparty by the Company that was expected to help expedite the delivery of XENLETA to patients in greater China.

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

The China Region License Agreement was terminated on July 30, 2023 in connection with the Asset Purchase Agreement being entered into with Sumitomo.

Named Patient Program Agreement with WE Pharma Ltd.

In June 2020, the Company and WE Pharma Ltd., or WEP Clinical, a specialist pharmaceutical services company, signed an exclusive agreement for 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. On January 9, 2023, the Company provided WEP Clinical with notice of its intent to terminate the agreement in connection with the planned wind down of its operations.

11.         Commitments and Contingencies

XENLETA API Supply

In August 2021, the Company’s wholly-owned subsidiary, Nabriva Therapeutics Ireland DAC, entered into an amendment to its API Supply Agreement, or the Hovione Supply Agreement, with Hovione Limited, or Hovione, which provided for the long-term commercial supply of the active pharmaceutical ingredients, or API, for XENLETA. 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 were to be no greater than an aggregate of €10.0 million. If the aggregate amount of royalties payments received by Hovione was less than an aggregate of €4.0 million, the Company was obligated to pay Hovione the difference in a lump sum payment at the end of the Royalty Term. In addition, 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.

In November 2022, Nabriva Therapeutics Ireland DAC, entered into an amendment to the Hovione Supply Agreement 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

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third party (or any finished commercial product containing API obtained from a third party) other than Hovione during the terms of the agreement.

On July 31, 2023, Nabriva Therapeutics Ireland DAC entered into an amendment to the Hovione Supply Agreement. Under the amendment, the Company is released from certain obligations arising under the agreement, including (i) the minimum annual commitment obligations and (ii) the royalty obligations. The Company has agreed to pay $6.3 million to satisfy its obligation in respect of the 2022 and 2023 minimal annual commitment and $1.0 million for settlement of 2024-2030 minimum annual commitments and royalties. As of June 30, 2023, the Company had $6.3 million accrued within accounts payable and $1.0 million accrued within accrued expenses and other current liabilities related to these obligations. For the six months ended June 30, 2023, the Company recognized $0.4 million of expense in cost of revenues relating to losses under the XENLETA purchase commitment. As of December 31, 2022, the Company had $4.3 million and $2.6 million accrued in accrued expenses and other current liabilities relating to estimated losses under the XENLETA purchase commitments in consideration of ASC 330-10-35-17, Inventory Purchase Commitments and satisfaction of the 2022 minimal annual commitment, respectively.

Litigation

Except as noted below, 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.

On September 29, 2023, a complaint was filed against the Company in the U.S. District Court for the Southern District of New York by Ladenburg, Thalmann & Co., Inc. (“LTCO”), alleging breach of contract by the Company relating to an engagement letter between the Company and LTCO for investment banking services. To date, the Company has yet to be formally served with the complaint. While the Company is unable to provide any assurances as to the ultimate outcome of the case, the Company intends to defend itself vigorously against the allegations. The Company is currently unable to estimate the costs and timing of any litigation, including any potential damages if LTCO were to prevail on its claims.

12.         Subsequent Events

As described in Note 1, on July 30, 2023, the Company sold certain assets and rights related to lefamulin in China, Hong Kong, Macau and Taiwan to Sumitomo for $15.0 million, which included full satisfaction of the settlement of purchase obligations with various contract manufacturing organizations. For additional information regarding the Company’s agreements with its contract manufacturing organizations, see 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.

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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 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 an approved product, XENLETA, as well as a 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, or the Cash Preservation Plan, we previously reduced our operations to those necessary to make XENLETA commercially available to wholesale customers; identify and explore strategic options, including the sale, license or other disposition of one or more of our assets, technologies or products; and wind down our business. We have no intention of resuming any active sales promotion or research and development activities. As part of the Cash Preservation Plan, we terminated all of our employees.

In January 2023, we repaid in full all indebtedness owed to Hercules Capital and removed all secured liens on 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, we entered into an agreement to transition responsibility for the promotion and distribution of SIVEXTRO back to Merck & Co. Inc., effective as of June 30, 2023. Although we have ceased our active commercialization efforts, we expect to continue to make XENLETA commercially available to wholesale customers. Following the closing of the transactions with Sumitomo Pharma Co., Ltd., or Sumitomo, we are currently focused on the sale of our remaining assets, including CONTEPO. We expect to continue to incur expenses while we carry out the orderly wind down of our operations.

On July 30, 2023, we entered into an Asset Purchase Agreement with Sumitomo, pursuant to which Sumitomo agreed to purchase, among other things, our assets and rights related to the development, manufacture, marketing and commercialization of lefamulin in the People’s Republic of China, Hong Kong, Macau and Taiwan and to assume certain liabilities related to the acquired assets. At the closing of the transactions contemplated by the Asset Purchase Agreement, Sumitomo made an upfront cash payment of $15.0 million, of which (i) $1.8 million was held back as security for potential indemnification claims and (ii) $10.4 million was paid by Sumitomo on our behalf, to certain of our contract manufacturing organizations to settle and discharge the remaining obligations under such agreements. We received the remaining $2.8 million in cash from Sumitomo upon the closing; therefore, such amounts are not included on our balance sheet as of June 30, 2023. Through a period of time that may extend to March 31, 2024, we have agreed to provide certain post-closing services to Sumitomo, including to continue and maintain the application for marketing

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approval for lefamulin filed by Nabriva Ireland with the National Medical Products Administration, or NMPA, of the People’s Republic of China, the import drug license for lefamulin filed with the NMPA and the existing market approval for lefamulin in the United States. In exchange for these services, Sumitomo has agreed to fully reimburse us for our expenses incurred with respect to the post-closing activities.

As previously disclosed, on July 21, 2023, we received a delisting determination letter indicating that, based on our continued non-compliance with certain Nasdaq listing requirements and our confirmation that we did not intend to submit a plan to regain compliance with the listing rules, our ordinary shares would be suspended from trading on Nasdaq at the open of business on August 1, 2023. We did not appeal Nasdaq’s determination and our ordinary shares were formally delisted from the Nasdaq Capital Market on September 8, 2023.

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 six months ended June 30, 2023, we recorded $10.0 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. We do not expect to generate any revenue from product sales of SIVEXTRO after June 30, 2023, at which time our right to commercialize SIVEXTRO terminated. We continue to make XENLETA commercially available to wholesale customers. Future product 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 XENLETA. However, we do not expect any material product revenues from sales of XENLETA.

Collaboration revenues for the six months ended June 30, 2023 were less than $0.1 million. All collaboration activities have ceased, and as a result we do not expect any further collaboration revenues in future periods.

Cost of Revenues

Cost of revenues represented 44.5% and 20.0% of our total operating expenses for the six months ended June 30, 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 six months ended June 30, 2023 was primarily due to a $7.5 million inventory impairment expense associated with the write-down of the remaining amounts of XENLETA inventory held.

Research and Development Expenses

Research and development expenses represented 12.2% and 19.4% of our total operating expenses for the six months ended June 30, 2023 and 2022, respectively. The decrease in research and development expenses for the six months ended June 30, 2023 was primarily due to the discontinuation of research and development efforts as part of our Cash Preservation Plan.

For our research and development programs, we historically incurred both direct and indirect expenses. Direct expenses included 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 were 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. 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.

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

	Six Months Ended June 30,
(in thousands)	2023		2022
Direct Costs
XENLETA	$	73	$	1,320
CONTEPO		41		196
Other programs and initiatives		87		864
Indirect Costs		3,510		5,225
Total research and development expenses	$	3,711	$	7,605

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 43.2% and 60.6% of our total operating expenses for the six months ended June 30, 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 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 expect a significant decrease in selling, general and administrative expenses as we have terminated all of our employees, are no longer promoting SIVEXTRO and XENLETA, and have otherwise reduced the scope of our operations as we wind down our business.

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

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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

● 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 and SIVEXTRO inventory and prepaid inventory

Our XENLETA inventory was 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, we made an assessment of the net realizable value of XENLETA inventory as of June 30, 2023 and December 31, 2022. As of June 30, 2023, we determined that the net realizable value of XENLETA inventory was not recoverable and recorded an impairment charge of $7.5 million related to the remaining amounts of XENLETA inventory held, which expense was recorded in cost of revenues for the three and six months ended June 30, 2023. As of December 31, 2022, we adjusted the value of inventory and prepaid inventory by $5.6 million related to XENLETA, which expense was recorded in cost of revenues for the year ended December 31, 2022. We stopped selling SIVEXTRO when our Distribution Agreement with Merck expired on June 30, 2023. As of June 30, 2023, we concluded the net realizable value of SIVEXTRO

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inventory was not recoverable and recorded a $17 thousand impairment expense in cost of revenues for the three and six months ended June 30, 2023. 

Results of Operations

Comparison of Three months ended June 30, 2023 and 2022

	Three Months Ended June 30,
(in thousands)	2023		2022		Change
Consolidated operations data:
Product revenue, net	$	2,574	$	8,680	$	(6,106)
Collaboration revenue		—		96		(96)
Research premium and grant revenue		(331)		415		(746)
Total revenues		2,243		9,191		(6,948)
Costs and expenses:
Cost of revenues		(9,074)		(4,455)		(4,619)
Research and development expenses		(1,086)		(4,088)		3,002
Selling, general and administrative expenses		(4,107)		(11,047)		6,940
Total operating expenses		(14,267)		(19,590)		5,323
Loss from operations		(12,024)		(10,399)		(1,625)
Other (expense) income:
Other expense, net		(39)		(92)		53
Interest (income) expense, net		1		(198)		199
Loss before income taxes		(12,062)		(10,689)		(1,373)
Income tax expense		—		(385)		385
Net loss	$	(12,062)	$	(11,074)	$	(988)

Revenues

Revenues for the three months ended June 30, 2023 were $2.2 million compared to $9.2 million for the three months ended June 30, 2022. The $6.9 million decrease was driven primarily by a decrease in product sales resulting from our decision to wind down operations.

Cost of Revenues

Cost of revenues for the three months ended June 30, 2023 was $9.1 million compared to $4.5 million for the three months ended June 30, 2022. The $4.6 million increase was primarily due to a $7.5 million inventory impairment expense, offset by a decrease in cost of revenues for SIVEXTRO resulting from our decision to wind down operations.

Research and Development Expenses

Research and development expenses for the three months ended June 30, 2023 were $1.1 million compared to $4.1 million for the three months ended June 30, 2022. The $3.0 million decrease was primarily due to fewer expenses incurred resulting from our decision to wind down operations.

Selling, General and Administrative Expenses

Selling, general and administrative expenses for the three months ended June 30, 2023 were $4.1 million compared to $11.0 million for the three months ended June 30, 2022. The $6.9 million decrease was driven by a decrease in salaries and professional fees resulting from our decision to wind down operations.

21

Other Expense, Net

Other expense, net decreased by $0.1 million for the three months ended June 30, 2023 primarily due to remeasurements of our foreign currency account balances.

Interest Expense, Net

Interest expense, net for the three months ended June 30, 2023 was negligible compared to $0.2 million for the three months ended June 30, 2022. The $0.2 million decrease was due to the full repayment of the loan with Hercules Capital in January 2023.

Income Tax Expense

We did not record income tax expense for the three months ended June 30, 2023. For the three months ended June 30, 2022, we recorded $0.4 million of income tax expense.

Comparison of Six Months Ended June 30, 2023 and 2022

	Six Months Ended June 30,
(in thousands)	2023		2022		Change
Consolidated operations data:
Product revenue, net	$	10,135	$	15,720	$	(5,585)
Collaboration revenue		29		725		(696)
Research premium and grant revenue		(331)		766		(1,097)
Total revenue		9,833		17,211		(7,378)
Costs and expenses:
Cost of revenues		(13,512)		(7,816)		(5,696)
Research and development expenses		(3,711)		(7,605)		3,894
Selling, general and administrative expenses		(13,107)		(23,747)		10,640
Total operating expenses		(30,330)		(39,168)		8,838
Loss from operations		(20,497)		(21,957)		1,460
Other (expense) income:
Other (expense) income, net		(70)		216		(286)
Interest expense, net		(194)		(413)		219
Loss before income taxes		(20,761)		(22,154)		1,393
Income tax expense		(1)		(739)		738
Net loss	$	(20,762)	$	(22,893)	$	2,131

Revenues

Revenues for the six months ended June 30, 2023 were $9.8 million compared to $17.2 million for the six months ended June 30, 2022. The $7.4 million decrease was driven primarily by a decrease in product sales resulting from our decision to wind down operations.

Cost of Revenues

Cost of revenues for the six months ended June 30, 2023 was $13.5 million compared to $7.8 million for the six months ended June 30, 2022. The $5.7 million increase was primarily due to a $7.5 million inventory impairment expense, offset by a decrease in cost of revenues for SIVEXTRO resulting from our decision to wind down operations.

22

Research and Development Expenses

Research and development expenses for the six months ended June 30, 2023 were $3.7 million compared to $7.6 million for the six months ended June 30, 2022. The $3.9 million decrease was primarily due to fewer expenses incurred following our decision to wind down operations.

Selling, General and Administrative Expenses

Selling, general and administrative expenses for the six months ended June 30, 2023 were $13.1 million compared to $23.7 million for the six months ended June 30, 2022. The $10.6 million decrease was driven by a decrease in salaries and professional fees resulting from our decision to wind down operations.

Other Income, Net

Other income, net decreased by $0.3 million for the six months ended June 30, 2023 primarily due to remeasurements of our foreign currency account balances.

Interest Expense, Net

Interest expense, net decreased by $0.2 million for the six months ended June 30, 2023 primarily due to repayment of the loan with Hercules Capital in January 2023.

Income Tax Expense

Income tax expense for the six months ended June 30, 2023 was less than $0.1 million. For the six months ended June 30, 2022, we recorded $0.7 million of income tax expense.

Liquidity and Capital Resources

Since adopting the Cash Preservation Plan in January 2023, we have significantly reduced our expenses. We repaid substantially all of our indebtedness in January 2023 and have no plans for capital expenditures. As of June 30, 2023, we had cash, cash equivalents and restricted cash of $2.3 million. We previously had sources of liquidity under an “at-the-market” equity financing facility with Jefferies LLC and an equity line of credit facility with Lincoln Park Capital Fund, LLC. We have not raised any proceeds under such facilities during 2023 and have no plans to raise any proceeds prior to the wind down of our business.

Cash Flows

The following table summarizes our cash flows for the six months ended June 30, 2023 and 2022:

	Six Months Ended June 30,
(in thousands)	2023		2022
Net cash (used in) provided by:
Operating activities	$	(5,107)	$	(28,909)
Investing activities		(53)		(152)
Financing activities		(4,852)		1,402
Effects of foreign currency translation on cash		(270)		(12)
Net decrease in cash, cash equivalents and restricted cash	$	(10,282)	$	(27,671)

Operating Activities

Cash flow used in operating activities for the six months ended June 30, 2023 was $5.1 million compared to $28.9 million for the six months ended June 30, 2022, representing a 82% decrease. The $23.8 million decrease was

23

primarily due to a reduction in operating expenses incurred 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 six months ended June 30, 2023 and June 30, 2022.

Financing Activities

Cash flow used in financing activities for the six months ended June 30, 2023 was $4.9 million primarily driven by the repayment of amounts due under the Hercules Loan Agreement in January 2023.

Material Cash Requirements

As part of our Cash Preservation Plan approved by our board of directors in January 2023, we reduced our operations to those necessary to make SIVEXTRO and XENLETA commercially available to wholesale customers; identify and explore strategic options, including the sale, license or other disposition of one or more of our assets, technologies or products; and wind down our business. We have no intention of resuming any active sales promotion or research and development activities. As part of the Cash Preservation Plan, we also terminated all of our employees. The estimated total cost of severance associated with the wind down of our operations is $5.4 million, of which $1.3 million was recorded in research and development expenses and $4.1 million was recorded in selling, general and administrative expenses in the statement of operations for the six months ended June 30, 2023. As of June 30, 2023, the remaining unpaid balance of severance costs is $2.7 million, which is recorded in accrued expenses and other current liabilities in the consolidated balance sheet and which is expected to be paid prior to the end of 2023.

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, we 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.

Minimum Purchase Commitments 

In July 2023, through our wholly owned subsidiary, Nabriva Therapeutics Ireland DAC, we entered into an amendment to our supply agreement with Hovione Limited. Under the amendment, we are released from certain obligations arising under the supply agreement, including our minimum annual commitment obligations and royalty obligations. We have agreed to pay $6.3 million to satisfy our obligation in respect of some of the minimum annual commitments through 2023 and $1.0 million for satisfaction of future minimum annual commitments through 2030 and royalties. As of June 30, 2022, we had $6.3 million accrued within accounts payable and $1.0 million accrued within accrued expenses and other current liabilities related to expected losses under the XENLETA purchase commitments. For the six months ended June 30, 2023, we recognized $0.4 million of expense in cost of revenues relating to losses under the XENLETA purchase commitments.

Outlook 

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 operating expenses and debt service obligations through the end of October 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. We are currently focused, as part of our Cash Preservation Plan, on the sale of our existing assets, including CONTEPO. Our estimate of the sufficiency of our cash resources assumes, among other things, that we do not obtain any additional funding from the sale of our assets.

24

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

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. 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.

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 business.

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 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 June 30, 2023, our 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.

Material Weakness in Internal Control over Financial Reporting

A material weakness is a deficiency, or combination of deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a material misstatement of the annual or interim financial statements will not be prevented or detected on a timely basis. As a part of the Cash Preservation Plan, during the three months ended June 30, 2023 we terminated our key employees who had knowledge and experience in financial reporting and management oversight. As a result, management determined that a material weakness in internal control over financial reporting existed and remained unremediated as of June 30, 2023. Management is in the process of winding down our business in its entirety and does not have plans to remediate this material weakness in internal control over financial reporting. Notwithstanding the material weakness, our Chief Executive Officer and Chief Financial Officer concluded that our consolidated financial statements included in this report were fairly stated in all material respects in accordance with generally accepted accounting principles in the United States of America for each of the periods presented.

25

Changes in Internal Control over Financial Reporting

Other than as described above in connection with the Cash Preservation Plan, 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 June 30, 2023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II

ITEM 1. LEGAL PROCEEDINGS

Except as noted below, 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.

On September 29, 2023, a complaint was filed against us in the U.S. District Court for the Southern District of New York by Ladenburg, Thalmann & Co., Inc. (“LTCO”), alleging breach of contract by us relating to an engagement letter between LTCO and us for investment banking services. To date, we have yet to be formally served with the complaint. While we are unable to provide any assurances as to the ultimate outcome of the case, we intend to defend ourselves vigorously against the allegations. We are currently unable to estimate the costs and timing of any litigation, including any potential damages if LTCO were to prevail on its claims.

ITEM 1A. RISK FACTORS

Our business is subject to risks and events that, if they occur, could adversely affect our financial condition and results of operations and the trading price of our securities. Except as provided below, our risk factors as of the date of this Quarterly Report on Form 10-Q have not changed materially from those described 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.

RISKS RELATED TO THE PLANNED WIND DOWN AND LIQUIDATION OF OUR COMPANY

We cannot assure you as to the amount or timing of distributions, if any, to be made to our stockholders.

We cannot predict with certainty the amount or timing of distributions to our stockholders or whether any such distributions will occur, as uncertainties as to the ultimate amount of our liabilities, the operating costs and amounts to be set aside for claims, obligations and provisions during the winding-up process, and the related timing to complete such transactions make it impossible to predict with certainty the actual net cash amount, if any, that will ultimately be available for distribution to stockholders or the timing of any such distributions. Examples of uncertainties that could reduce the value of distributions to our stockholders include the receipt of no, or lower than expected, proceeds in the course of our efforts to monetize our remaining assets; unanticipated costs relating to the defense, satisfaction or settlement of lawsuits or other claims threatened against us or our directors or officers; amounts necessary to resolve claims of any creditors or other third parties; and delays in the liquidation or other winding up process.

In addition, as we wind down, we will continue to incur expenses from operations, including directors’ and officers’ insurance; payments to service providers and any continuing employees or consultants; taxes; legal, accounting and consulting fees and expenses related to our filing obligations with the SEC, which will reduce any amounts available for distribution to our stockholders. It is the current intent of the Board that any cash will first be used to pay our outstanding current liabilities and then will be retained to pay ongoing corporate and administrative costs and expenses associated with winding down the company, liabilities and potential liabilities relating to or arising out of any litigation matters and potential liabilities relating to our indemnification obligations, if any, to our service providers, or to our current and former officers and directors, before such cash, if any remaining, will be available for distribution to stockholders.

The Board will determine, in its sole discretion, the timing of the distribution of the remaining amounts, if any, to our stockholders. We can provide no assurance as to if or when any such distributions will be made, and we cannot

26

provide any assurance as to the amount to be paid to stockholders in any such distributions, if any are to be made. Stockholders may receive substantially less than the amount that we currently estimate that they may receive, or they may receive no distribution at all. To the extent funds are available for distribution to stockholders, the Board intends to seek to distribute such funds to our stockholders as quickly as possible, as permitted by applicable law, and intends to take all reasonable actions to optimize the distributable value to our stockholders.

We plan to initiate steps to exit from certain reporting requirements under the Exchange Act, which will substantially reduce publicly available information about us. If the exit process is protracted, we will continue to bear the expense of being a public reporting company despite having no source of revenue.

Even though our ordinary shares were delisted from the Nasdaq Capital Market in September 2023, our ordinary shares are currently registered under the Exchange Act, which requires that we, and our officers and directors with respect to Section 16 of the Exchange Act, comply with certain public reporting and proxy statement requirements thereunder. Compliance with these requirements is costly and time-consuming. We plan to initiate steps to exit from such reporting requirements in order to further curtail our expenses; however, such process may be protracted and we may be required to continue to file reports to disclose material events. Accordingly, we will continue to incur expenses that will reduce any amount available for distribution, including expenses of complying with public company reporting requirements and paying our service providers, among others. If our reporting obligations cease, publicly available information about us will be substantially reduced.

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

None.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

27

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 June 30, 2023, formatted in inline XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets as of June 30, 2023 and December 31, 2022, (ii) Consolidated Statements of Operations for the three and six months ended June 30, 2023 and 2022, (iii) Consolidated Statements of Cash Flows for the six months ended June 30, 2023 and 2022, (iv) Consolidated Statement of Changes in Stockholders’ Equity for the six months ended June 30, 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

28

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: October 18, 2023
	By:	/s/ Michael Hogan
		Michael Hogan
		Chief Executive Officer
		(On Behalf of the Registrant)
Date: October 18, 2023	By:	/s/ David Maggio
		David Maggio
		Chief Financial Officer
		(Principal Financial and Accounting Officer)

29

EX-31.1

EXHIBIT 31.1

CERTIFICATIONS

I, Michael Hogan, 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/ Michael Hogan
	Michael Hogan
	Chief Executive Officer
	(Principal Executive Officer)

Dated: October 18, 2023

EX-31.2

EXHIBIT 31.2

CERTIFICATIONS

I, David Maggio, 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/ David Maggio
	David Maggio
	Chief Financial Officer
	(Principal Financial Officer)

Dated: October 18, 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 June 30, 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/ Michael Hogan
	Michael Hogan
	Chief Executive Officer
	(Principal Executive Officer)

Dated: October 18, 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 June 30, 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/ David Maggio
	David Maggio
	Chief Financial Officer
	(Principal Financial Officer)

Dated: October 18, 2023

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2023	Sep. 11, 2023
Document And Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 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		3,230,837
Entity Central Index Key	0001641640
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Amendment Flag	false

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 2,182	$ 12,414
Restricted cash	73	123
Accounts receivable, net and other receivables	4,439	6,742
Inventory		9,676
Prepaid expenses	3,258	2,149
Total current assets	9,952	31,104
Property and equipment, net	246	280
Intangible assets, net	1	3
Other non-current assets	379	378
Total assets	10,578	31,765
Current liabilities:
Current portion of long-term debt	196	4,833
Accounts payable	14,026	5,431
Accrued expense and other current liabilities	11,981	17,341
Total current liabilities	26,203	27,605
Non-current liabilities:
Long-term debt	344	388
Other non-current liabilities	352	479
Total non-current liabilities	696	867
Total liabilities	26,899	28,472
Commitments and contingencies (Note 11)
Stockholders' (deficit) equity:
Ordinary shares, nominal value $0.01, 12,000,000 ordinary shares authorized at June 30, 2023 and December 31, 2022; 3,230,837 and 3,201,417 issued and outstanding at June 30, 2023 and December 31, 2022, respectively	32	32
Preferred shares, nominal value $0.01, 100,000,000 shares authorized at June 30, 2023 and December 31, 2022; None issued and outstanding
Additional paid in capital	657,243	656,095
Accumulated deficit	(673,623)	(652,861)
Accumulated other comprehensive income	27	27
Total stockholders' (deficit) equity	(16,321)	3,293
Total liabilities and stockholders' (deficit) equity	$ 10,578	$ 31,765

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 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	3,230,837	3,201,417
Ordinary stock, outstanding shares	3,230,837	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

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Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues:
Total revenues	$ 2,243	$ 9,191	$ 9,833	$ 17,211
Operating expenses:
Cost of revenues	(9,074)	(4,455)	(13,512)	(7,816)
Research and development expenses	(1,086)	(4,088)	(3,711)	(7,605)
Selling, general and administrative expenses	(4,107)	(11,047)	(13,107)	(23,747)
Total operating expenses	(14,267)	(19,590)	(30,330)	(39,168)
Loss from operations	(12,024)	(10,399)	(20,497)	(21,957)
Other (expense) income:
Other (expense) income, net	(39)	(92)	(70)	216
Interest income (expense), net	1	(198)	(194)	(413)
Loss before income taxes	(12,062)	(10,689)	(20,761)	(22,154)
Income tax expense	0	(385)	(1)	(739)
Net loss	$ (12,062)	$ (11,074)	$ (20,762)	$ (22,893)
Loss per share
Basic loss ($ per share)	$ (3.73)	$ (4.38)	$ (6.43)	$ (9.38)
Diluted loss ($ per share)	$ (3.73)	$ (4.38)	$ (6.43)	$ (9.38)
Weighted average number of shares:
Basic (in shares)	3,230,827	2,529,523	3,227,629	2,441,136
Diluted (in shares)	3,230,827	2,529,523	3,227,629	2,441,136
Product revenue, net
Revenues:
Total revenues	$ 2,574	$ 8,680	$ 10,135	$ 15,720
Collaboration revenue
Revenues:
Total revenues	0	96	29	725
Research premium and grant revenue
Revenues:
Total revenues	$ (331)	$ 415	$ (331)	$ 766

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Consolidated Statements of Changes in Stockholders' (Deficit) Equity - USD ($) $ in Thousands	Ordinary shares	Additional paid in capital	Accumulated other comprehensive income	Accumulated deficit	Total
Stockholders' (deficit) equity, beginning balance at Dec. 31, 2021	$ 23	$ 648,976	$ 27	$ (595,676)	$ 53,350
Stockholders' (deficit) equity, beginning balance (in shares) at Dec. 31, 2021	2,269
Consolidated Statements of Changes in Stockholders' (Deficit) Equity
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' (deficit) equity, ending balance at Mar. 31, 2022	$ 25	652,068	27	(607,495)	44,625
Stockholders' (deficit) equity, ending balance (in shares) at Mar. 31, 2022	2,470
Stockholders' (deficit) equity, beginning balance at Dec. 31, 2021	$ 23	648,976	27	(595,676)	53,350
Stockholders' (deficit) equity, beginning balance (in shares) at Dec. 31, 2021	2,269
Consolidated Statements of Changes in Stockholders' (Deficit) Equity
Net loss					(22,893)
Stockholders' (deficit) equity, ending balance at Jun. 30, 2022	$ 26	653,121	27	(618,569)	34,605
Stockholders' (deficit) equity, ending balance (in shares) at Jun. 30, 2022	2,584
Stockholders' (deficit) equity, beginning balance at Mar. 31, 2022	$ 25	652,068	27	(607,495)	44,625
Stockholders' (deficit) equity, beginning balance (in shares) at Mar. 31, 2022	2,470
Consolidated Statements of Changes in Stockholders' (Deficit) Equity
Issuance of ordinary shares	$ 1	817			818
Issuance of ordinary shares (in shares)	114
Shares issued in connection with the vesting of restricted stock units		1			1
Equity transaction costs		(82)			(82)
Stock-based compensation expense		317			317
Net loss				(11,074)	(11,074)
Stockholders' (deficit) equity, ending balance at Jun. 30, 2022	$ 26	653,121	27	(618,569)	34,605
Stockholders' (deficit) equity, ending balance (in shares) at Jun. 30, 2022	2,584
Stockholders' (deficit) equity, beginning balance at Dec. 31, 2022	$ 32	656,095	27	(652,861)	3,293
Stockholders' (deficit) equity, beginning balance (in shares) at Dec. 31, 2022	3,201
Consolidated Statements of Changes in Stockholders' (Deficit) Equity
Equity transaction costs		1			1
Stock-based compensation expense		1,049			1,049
Net loss				(8,700)	(8,700)
Stockholders' (deficit) equity, ending balance at Mar. 31, 2023	$ 32	657,145	27	(661,561)	(4,357)
Stockholders' (deficit) equity, ending balance (in shares) at Mar. 31, 2023	3,201
Stockholders' (deficit) equity, beginning balance at Dec. 31, 2022	$ 32	656,095	27	(652,861)	3,293
Stockholders' (deficit) equity, beginning balance (in shares) at Dec. 31, 2022	3,201
Consolidated Statements of Changes in Stockholders' (Deficit) Equity
Net loss					(20,762)
Stockholders' (deficit) equity, ending balance at Jun. 30, 2023	$ 32	657,243	27	(673,623)	(16,321)
Stockholders' (deficit) equity, ending balance (in shares) at Jun. 30, 2023	3,231
Stockholders' (deficit) equity, beginning balance at Mar. 31, 2023	$ 32	657,145	27	(661,561)	(4,357)
Stockholders' (deficit) equity, beginning balance (in shares) at Mar. 31, 2023	3,201
Consolidated Statements of Changes in Stockholders' (Deficit) Equity
Shares issued in connection with the vesting of restricted stock units (in shares)	30
Stock-based compensation expense		98			98
Net loss				(12,062)	(12,062)
Stockholders' (deficit) equity, ending balance at Jun. 30, 2023	$ 32	$ 657,243	$ 27	$ (673,623)	$ (16,321)
Stockholders' (deficit) equity, ending balance (in shares) at Jun. 30, 2023	3,231

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities
Net loss	$ (20,762)	$ (22,893)
Adjustments to reconcile net loss to net cash used in operating activities:
Non-cash other income, net	4	3
Non-cash interest income		(4)
Non-cash interest expense	55	222
Impairment of inventory	7,531
Depreciation and amortization expense	39	155
Stock-based compensation	1,097	1,334
Other	483	(112)
Changes in operating assets and liabilities:
(Increase) decrease in other non-current assets	(1)	2
Decrease (increase) in accounts receivable, net and other receivables and prepaid expenses	1,194	(692)
Decrease (increase) in inventory	2,145	(1,026)
Increase (decrease) in accounts payable	8,595	(3,265)
Decrease in accrued expenses and other liabilities	(5,360)	(2,155)
Decrease in deferred revenue		(374)
Decrease in other non-current liabilities	(127)	(104)
Net cash used in operating activities	(5,107)	(28,909)
Cash flows from investing activities
Purchases of equipment	(3)	(99)
Changes in restricted cash	(50)	(53)
Net cash used in investing activities	(53)	(152)
Cash flows from financing activities
Proceeds from issuance of ordinary shares and warrants		2,046
Proceeds from at-the-market facility		993
Repayments of unexercised warrant nominal values		(406)
Repayments of long-term borrowings	(4,853)	(949)
Other	1	(282)
Net cash (used in) provided by financing activities	(4,852)	1,402
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(270)	(12)
Net decrease in cash, cash equivalents and restricted cash	(10,282)	(27,671)
Cash, cash equivalents, and restricted cash at beginning of period	12,537	47,834
Cash, cash equivalents and restricted cash at end of period	2,255	20,163
Supplemental disclosure of cash flow information:
Interest paid	$ 162	240
Taxes paid		$ 853

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Organization and Business Activities

6 Months Ended

Jun. 30, 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 an approved product, XENLETA, as well as a 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 previously reduced its operations to those necessary to: (i) make SIVEXTRO and XENLETA commercially available to wholesale customers; (ii) identify and explore strategic options, including the sale, license or other disposition of one or more of its assets, technologies or products; and (iii) wind down its business. The Company has no intention of resuming any active sales promotion or research and development activities. As part of the Cash Preservation Plan, the Company terminated all of its employees.

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 selling, general and administrative expenses in the statement of operations for the six months ended June 30, 2023. As of June 30, 2023, the remaining unpaid balance of severance costs is $2.7 million, which is recorded in accrued expenses and other current liabilities in the consolidated balance sheet and which is expected to be paid prior to the end of 2023.

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. The Company stopped selling SIVEXTRO when its Distribution Agreement with Merck expired on June 30, 2023.

On July 30, 2023, the Company entered into an Asset Purchase Agreement with Sumitomo Pharma Co., Ltd., or Sumitomo, pursuant to which Sumitomo agreed to (i) purchase, among other things, the Company’s assets and rights related to the development, manufacture, marketing and commercialization of XENLETA in the People’s Republic of China, Hong Kong, Macau and Taiwan, or collectively the Territory, and (ii) assume certain liabilities related to the acquired assets. The transactions contemplated by the Asset Purchase Agreement closed on July 30, 2023. At the closing, Sumitomo made an upfront cash payment of $15.0 million, of which (i) $1.8 million was held back as security for potential indemnification claims, (ii) $10.4 million was paid by Sumitomo, on behalf of the Company, to certain of the Company’s contract manufacturing organizations to settle and discharge the remaining obligations under such agreements and (iii) $2.8 million was paid to the Company in cash. The cash received by the Company is not reflected on the balance sheet at June 30, 2023.

As part of the transactions contemplated by the Asset Purchase Agreement, the Company terminated its license agreement and certain related agreements with certain affiliates of Sumitomo, including Sumitomo Pharmaceuticals (Suzhou), pursuant to which the Company previously had granted an exclusive license to develop and commercialize, and a non-exclusive license to manufacture, certain products containing lefamulin in the Territory. During a period of time that may extend to March 31, 2024, the Company has agreed to provide certain post-closing services to Sumitomo, including to continue and maintain the application for marketing approval for XENLETA filed by Nabriva Ireland with the National Medical Products Administration, or NMPA, of the People’s Republic of China, the import drug license for

lefamulin filed with the NMPA and the existing market approval for lefamulin in the United States. In exchange for these obligations, Sumitomo has agreed to fully reimburse the Company for expenses incurred with respect to the post-closing activities.

Following the closing of the transactions with Sumitomo, the Company is currently focused on the sale of its remaining assets, including CONTEPO.

Liquidity

Since adopting the Cash Preservation Plan in January 2023, the Company has significantly reduced its expenses. As of June 30, 2023, the Company had cash, cash equivalents and restricted cash of $2.3 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. 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. 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. The 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 previously had sources of liquidity under an “at-the-market” equity financing facility with Jefferies LLC and an equity line of credit facility with Lincoln Park Capital Fund, LLC. The Company has not raised any proceeds under such facilities during 2023 and has no plans to raise any proceeds prior to the wind down of its business.

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 will be sufficient to enable the Company to fund its operating expenses and debt service obligations through the end of October 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 from the sale of its assets.

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 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 June 30, 2023 and for the three and six months ended June 30, 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 June 30, 2023 and results of operations for the three and six months ended June 30, 2023 and 2022. The financial data and other information disclosed in these notes

related to the three and six months ended June 30, 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 material changes to the Company’s significant accounting policies.

Fair Value Measurement

As of June 30, 2023 and December 31, 2022, 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

6 Months Ended

Jun. 30, 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 June 30, 2023 and December 31, 2022. As of June 30, 2023, the Company determined that the net realizable value of XENLETA inventory was not recoverable and recorded an impairment charge of $7.5 million related to the remaining amounts of XENLETA inventory held, the expense for which was recorded in cost of revenues for the three and six months ended June 30, 2023. As of December 31, 2022, the Company adjusted the value of inventory and prepaid inventory with an adjustment of $5.6 million related to XENLETA, the expense for which was recorded in cost of revenues for the year ended December 31, 2022. The Company stopped selling SIVEXTRO when its Distribution Agreement with Merck expired on June 30, 2023. As of June 30, 2023, the Company concluded the net realizable value of SIVEXTRO inventory was not recoverable and recorded an impairment charge of $17,000, the expense for which was recorded in cost of revenues for the three and six months ended June 30, 2023.

Inventory reported at June 30, 2023 and December 31, 2022 consisted of the following:

		As of		As of
		June 30,		December 31,
(in thousands)		2023		2022
XENLETA raw materials	$	—	$	916
XENLETA work in process		—		4,658
XENLETA finished goods		—		640
Total XENLETA		—		6,214
SIVEXTRO finished goods		—		3,462
Total inventory	$	—	$	9,676

The Company had no prepaid inventory as of June 30, 2023. 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 as of that date.

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Accrued Expenses and Other Current Liabilities

6 Months Ended

Jun. 30, 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 included the following:

		As of June 30,		As of December 31,
(in thousands)		2023		2022
Research and development related costs	$	247	$	707
Payroll and related costs		3,042		1,737
Accounting, tax and audit services		281		552
Manufacturing and inventory		2,566		8,113
Product returns		568		784
Government rebates		2,102		2,028
Other accrued gross to net		2,231		2,129
Other		944		1,291
Total accrued expenses and other current liabilities	$	11,981	$	17,341

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Debt

6 Months Ended

Jun. 30, 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. 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 in full.

Prior to repayment as described below, 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, later extended to April 1, 2022, 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.

In March 2020, the Company repaid $30.0 million of the $35.0 million in aggregate principal amount of debt outstanding under the Loan Agreement. 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 fee associated with the prepayment to $300,000 and to defer such fees until June 1, 2023 or such earlier date on which all loans under the Loan Agreement were repaid or become due and payable.

The Company incurred a total of $1.3 million of costs in connection with the Loan Agreement, as amended, 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 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, representing all principal, accrued and unpaid interest, fees and other expenses, due under the Loan Agreement. Effective at the time of repayment, the Loan Agreement was terminated, and Hercules released all security interests held on the assets of the Company and its subsidiaries.

The Company previously obtained loans from the Austrian Research Promotion Agency (Österreichische Forschungsförderungsgesellschaft mbH, or FFG) at below-market interest rates, which loans are due on December 31, 2025.

Long-term debt as of June 30, 2023 and December 31, 2022 consisted of the following:

		As of		As of
		June 30,		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
FFG loans		540		582
Less: Amounts due within one year		(196)		(4,833)
Total long-term debt	$	344	$	388

Maturities of long-term debt as of June 30, 2023 were as follows:

(in thousands)
Remaining six months of 2023	$	148
2024	$	196
2025	$	196

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Revenues

6 Months Ended

Jun. 30, 2023

Revenues

Revenues

6.           Revenues

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands)	2023		2022		2023		2022
Product revenue, net	$	2,574	$	8,680	$	10,135	$	15,720
Collaboration revenues		—		96		29		725
Research premium and grant revenue		(331)		415		(331)		766
Total revenues	$	2,243	$	9,191	$	9,833	$	17,211

For the three months ended June 30, 2023 and 2022, product revenues, net of gross-to-net accruals and adjustments for returns, were $2.6 million and $8.7 million, respectively. For the six months ended June 30, 2023 and 2022, product revenues, net of gross-to-net accruals and adjustments for returns, were $10.1 million and $15.7 million, respectively. The Company´s gross-to-net 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 sold its products to pharmaceutical wholesalers/distributors (i.e., the Company’s customers). The Company’s wholesalers/distributors in turn sold the Company’s products directly to clinics, hospitals, and private practices. Revenue from the Company’s product sales was recognized as physical delivery of product occurred (when the Company’s customer obtained control of the product), in return for agreed-upon consideration.

Collaboration revenues for the three months ended June 30, 2022 were less than $0.1 million and no such revenues were recorded for the three months ended June 30, 2023. Collaboration revenues for the six months ended June 30, 2023 were less than $0.1 million. Collaboration revenues for the six months ended June 30, 2022 included $0.6 million related to the China Region License Agreement with an affiliate of Sumitomo (see Note 10).

Research premium and grant revenue include government research premiums, non-refundable grants, collaboration revenues and the benefit of government loans at below-market rates. Research premium and grant revenue for the three and six months ended June 30, 2023 were a $0.3 million contra-revenue due to a partial reversal of a European research and development grant. Research premium and grant revenue for the three and six months ended June 30, 2022 were $0.4 million and $0.8 million, respectively.

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Share-Based Payments

6 Months Ended

Jun. 30, 2023

Share-Based Payments

Share-Based Payments

7.           Share-Based Payments

The Company has share-based compensation plans, which are more fully described in Note 10, Share Based Payments, to the consolidated financial statements in the Company’s Annual Report on Form 10-K filed with the SEC on April 17, 2023. During the six months ended June 30, 2023, the Company did not grant any share-based awards. The following table presents stock-based compensation expense included in the Company’s consolidated statements of operations:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands)	2023		2022		2023		2022
Research and development expense	$	—	$	67	$	164	$	161
Selling, general and administrative expense		98		267		933		1,173
Total stock-based compensation expense	$	98	$	334	$	1,097	$	1,334

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Income Tax Expense

6 Months Ended

Jun. 30, 2023

Income Tax Expense

Income Tax Expense

8.           Income Tax Expense

For the six months ended June 30, 2023, the Company recorded a tax expense of less than $0.1 million. For the three months ended June 30, 2023, the Company did not record a tax expense. For the three and six months ended June 30, 2022, the Company recorded a tax expense of $0.4 million and $0.7 million, respectively.

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 June 30, 2023 and December 31, 2022.

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Loss per Share

6 Months Ended

Jun. 30, 2023

Loss per Share

Loss per Share

9.         Loss per Share

Basic and Diluted Loss per Share

For the three and six months ended June 30, 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				Six Months Ended
	June 30,				June 30,
(in thousands, except share and per share data)	2023		2022		2023		2022
Net loss for the period	$	(12,062)	$	(11,074)	$	(20,762)	$	(22,893)
Weighted average number of shares outstanding		3,230,827		2,529,523		3,227,629		2,441,136
Basic and diluted loss per share	$	(3.73)	$	(4.38)	$	(6.43)	$	(9.38)

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		Six Months Ended
	June 30,		June 30,
	2023	2022	2023	2022
Stock option awards	70,796	78,048	72,752	78,048
Restricted share units	36,705	46,901	37,199	46,901
Warrants	262,384	262,393	262,384	262,393

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Significant Arrangements and License Agreements

6 Months Ended

Jun. 30, 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

In July 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 MSD and Supplier under the trademark SIVEXTRO® for injection, intravenous use and oral use.

In April 2021, in accordance with the terms of the Distribution Agreement, the Company began exclusive distribution of SIVEXTRO under its own National Drug Code and the Company recognized 100% of net product sales of SIVEXTRO in its results of operations.

On January 31, 2023, the Company converted its exclusive license to promote, distribute and commercialize SIVEXTRO to a non-exclusive license and provided for the termination of the Distribution Agreement, which became effective on 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 subsidiary of 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 agreed to guarantee all of the obligations of Sumitomo Pharmaceuticals (Suzhou) under the China Region License Agreement.

In December 2020, the Company restructured its China Region License Agreement to provide for additional manufacturing collaboration and regulatory support to be provided to the contract counterparty by the Company that was expected to help expedite the delivery of XENLETA to patients in greater China.

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

The China Region License Agreement was terminated on July 30, 2023 in connection with the Asset Purchase Agreement being entered into with Sumitomo.

Named Patient Program Agreement with WE Pharma Ltd.

In June 2020, the Company and WE Pharma Ltd., or WEP Clinical, a specialist pharmaceutical services company, signed an exclusive agreement for 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. On January 9, 2023, the Company provided WEP Clinical with notice of its intent to terminate the agreement in connection with the planned wind down of its operations.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2023

Commitments and Contingencies

Commitments and Contingencies

11.         Commitments and Contingencies

XENLETA API Supply

In August 2021, the Company’s wholly-owned subsidiary, Nabriva Therapeutics Ireland DAC, entered into an amendment to its API Supply Agreement, or the Hovione Supply Agreement, with Hovione Limited, or Hovione, which provided for the long-term commercial supply of the active pharmaceutical ingredients, or API, for XENLETA. 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 were to be no greater than an aggregate of €10.0 million. If the aggregate amount of royalties payments received by Hovione was less than an aggregate of €4.0 million, the Company was obligated to pay Hovione the difference in a lump sum payment at the end of the Royalty Term. In addition, 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.

In November 2022, Nabriva Therapeutics Ireland DAC, entered into an amendment to the Hovione Supply Agreement 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.

On July 31, 2023, Nabriva Therapeutics Ireland DAC entered into an amendment to the Hovione Supply Agreement. Under the amendment, the Company is released from certain obligations arising under the agreement, including (i) the minimum annual commitment obligations and (ii) the royalty obligations. The Company has agreed to pay $6.3 million to satisfy its obligation in respect of the 2022 and 2023 minimal annual commitment and $1.0 million for settlement of 2024-2030 minimum annual commitments and royalties. As of June 30, 2023, the Company had $6.3 million accrued within accounts payable and $1.0 million accrued within accrued expenses and other current liabilities related to these obligations. For the six months ended June 30, 2023, the Company recognized $0.4 million of expense in cost of revenues relating to losses under the XENLETA purchase commitment. As of December 31, 2022, the Company had $4.3 million and $2.6 million accrued in accrued expenses and other current liabilities relating to estimated losses under the XENLETA purchase commitments in consideration of ASC 330-10-35-17, Inventory Purchase Commitments and satisfaction of the 2022 minimal annual commitment, respectively.

Litigation

Except as noted below, 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.

On September 29, 2023, a complaint was filed against the Company in the U.S. District Court for the Southern District of New York by Ladenburg, Thalmann & Co., Inc. (“LTCO”), alleging breach of contract by the Company relating to an engagement letter between the Company and LTCO for investment banking services. To date, the Company has yet to be formally served with the complaint. While the Company is unable to provide any assurances as to the ultimate outcome of the case, the Company intends to defend itself vigorously against the allegations. The Company is currently unable to estimate the costs and timing of any litigation, including any potential damages if LTCO were to prevail on its claims.

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Subsequent Events

6 Months Ended

Jun. 30, 2023

Subsequent Events

Subsequent Events

12.         Subsequent Events

As described in Note 1, on July 30, 2023, the Company sold certain assets and rights related to lefamulin in China, Hong Kong, Macau and Taiwan to Sumitomo for $15.0 million, which included full satisfaction of the settlement of purchase obligations with various contract manufacturing organizations. For additional information regarding the Company’s agreements with its contract manufacturing organizations, see 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.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 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 June 30, 2023 and for the three and six months ended June 30, 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 June 30, 2023 and results of operations for the three and six months ended June 30, 2023 and 2022. The financial data and other information disclosed in these notes

related to the three and six months ended June 30, 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 material changes to the Company’s significant accounting policies.

Fair Value Measurement

Fair Value Measurement

As of June 30, 2023 and December 31, 2022, 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)

6 Months Ended

Jun. 30, 2023

Inventory

Schedule of inventory

		As of		As of
		June 30,		December 31,
(in thousands)		2023		2022
XENLETA raw materials	$	—	$	916
XENLETA work in process		—		4,658
XENLETA finished goods		—		640
Total XENLETA		—		6,214
SIVEXTRO finished goods		—		3,462
Total inventory	$	—	$	9,676

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Accrued Expenses and Other Current Liabilities (Tables)

6 Months Ended

Jun. 30, 2023

Accrued Expenses and Other Current Liabilities

Schedule of accrued expenses and other liabilities

		As of June 30,		As of December 31,
(in thousands)		2023		2022
Research and development related costs	$	247	$	707
Payroll and related costs		3,042		1,737
Accounting, tax and audit services		281		552
Manufacturing and inventory		2,566		8,113
Product returns		568		784
Government rebates		2,102		2,028
Other accrued gross to net		2,231		2,129
Other		944		1,291
Total accrued expenses and other current liabilities	$	11,981	$	17,341

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Debt (Tables)

6 Months Ended

Jun. 30, 2023

Debt

Schedule of long-term debt

		As of		As of
		June 30,		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
FFG loans		540		582
Less: Amounts due within one year		(196)		(4,833)
Total long-term debt	$	344	$	388

Schedule of maturities of long-term debt

(in thousands)
Remaining six months of 2023	$	148
2024	$	196
2025	$	196

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Revenues (Tables)

6 Months Ended

Jun. 30, 2023

Revenues

Summary of revenue by type

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands)	2023		2022		2023		2022
Product revenue, net	$	2,574	$	8,680	$	10,135	$	15,720
Collaboration revenues		—		96		29		725
Research premium and grant revenue		(331)		415		(331)		766
Total revenues	$	2,243	$	9,191	$	9,833	$	17,211

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Share-Based Payments (Tables)

6 Months Ended

Jun. 30, 2023

Share-Based Payments

Schedule of allocation of share-based compensation expense

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands)	2023		2022		2023		2022
Research and development expense	$	—	$	67	$	164	$	161
Selling, general and administrative expense		98		267		933		1,173
Total stock-based compensation expense	$	98	$	334	$	1,097	$	1,334

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Loss per Share (Tables)

6 Months Ended

Jun. 30, 2023

Loss per Share

Schedule of basic and diluted loss per share

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands, except share and per share data)	2023		2022		2023		2022
Net loss for the period	$	(12,062)	$	(11,074)	$	(20,762)	$	(22,893)
Weighted average number of shares outstanding		3,230,827		2,529,523		3,227,629		2,441,136
Basic and diluted loss per share	$	(3.73)	$	(4.38)	$	(6.43)	$	(9.38)

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

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2023	2022	2023	2022
Stock option awards	70,796	78,048	72,752	78,048
Restricted share units	36,705	46,901	37,199	46,901
Warrants	262,384	262,393	262,384	262,393

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Organization and Business Activities (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
	Jul. 30, 2023	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Liquidity
Severance costs		$ 5,400			$ 5,400
Remaining balance of severance costs		2,700			2,700
Amount paid in cash					3	$ 99
Cash and cash equivalents and restricted cash		2,255	$ 20,163		2,255	$ 20,163	$ 12,537	$ 47,834
Shares issued			$ 818	$ 2,221
Research and development
Liquidity
Severance costs		1,300			1,300
Selling, general and administrative
Liquidity
Severance costs		$ 4,100			$ 4,100
Subsequent Event | Asset Purchase Agreement | Sumitomo Pharma Co. Ltd
Liquidity
Upfront cash payment	$ 15,000
Amount held back by purchaser	1,800
Amount paid for remaining obligations	10,400
Amount paid in cash	$ 2,800

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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 ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Inventory
Total inventory			$ 9,676,000
Impairment of inventory remaining balance		$ 7,531,000
XENLETA
Inventory
Raw materials			916,000
Work in process			4,658,000
Finished goods			640,000
Total inventory			6,214,000
Obsolete inventory non-cash reserve			5,600,000
Impairment of inventory remaining balance	$ 7,500,000	7,500,000
SIVEXTRO
Inventory
Finished goods			$ 3,462,000
Impairment of inventory remaining balance	$ 17,000	$ 17,000

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Inventory - Prepaid Inventory (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Prepaid expense
Inventory [Line Items]
Prepaid inventory	$ 0.0	$ 0.9

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Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accrued expenses and other liabilities
Research and development related costs	$ 247	$ 707
Payroll and related costs	3,042	1,737
Accounting, tax and audit services	281	552
Manufacturing and inventory	2,566	8,113
Product returns	568	784
Government rebates	2,102	2,028
Other accrued gross to net	2,231	2,129
Other	944	1,291
Total accrued expenses and other current liabilities	$ 11,981	$ 17,341

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Debt - Summary (Details) - Term loan - USD ($)				6 Months Ended
	Jan. 05, 2023	Sep. 22, 2022	Mar. 11, 2020	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2018
Debt
End of term fee					$ 2,079,000
Loan Agreement
Debt
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%
Repayment of debt	$ 4,500,000		30,000,000.0
End of term loan charge payment			2,100,000
End of term loan charge			$ 300,000
Loan origination costs				$ 1,300,000
Initial fee paid to lender				$ 700,000
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
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	Jun. 30, 2023	Dec. 31, 2022
Long-term debt
Less: Amounts due within one year	$ (196)	$ (4,833)
Long-term debt	344	388
Maturities of long-term debt
Remaining six months of 2023	148
2024	196
2025	196
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, FFG loans
Long-term debt
Carrying value of term loan	$ 540	$ 582

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Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue
Revenue accounted for under Topic 606	$ 2,243	$ 9,191	$ 9,833	$ 17,211
Product revenue, net
Revenue
Revenue accounted for under Topic 606	2,574	8,680	10,135	15,720
Collaboration revenue
Revenue
Revenue accounted for under Topic 606	0	96	29	725
Collaboration revenue | Sumitomo Pharmaceuticals (Suzhou) | License Agreement
Revenue
Revenue accounted for under Topic 606				600
Research premium and grant revenue
Revenue
Revenue accounted for under Topic 606	$ (331)	415	(331)	$ 766
Maximum | Collaboration revenue | Sumitomo Pharmaceuticals (Suzhou) | License Agreement
Revenue
Revenue accounted for under Topic 606			$ 100
Maximum | Research premium and grant revenue
Revenue
Revenue accounted for under Topic 606		400
Maximum | Collaboration revenue - Upfront payment
Revenue
Revenue accounted for under Topic 606		$ 100

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Share-Based Payments - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-Based Payments
Share-based compensation expense	$ 98	$ 334	$ 1,097	$ 1,334
Research and development
Share-Based Payments
Share-based compensation expense		67	164	161
Selling, general and administrative
Share-Based Payments
Share-based compensation expense	$ 98	$ 267	$ 933	$ 1,173

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Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income tax expense (benefit)	$ 0	$ 385	$ 1	$ 739
Maximum
Income tax expense (benefit)			$ 100

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Loss per Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Basic and Diluted Loss per Share
Net loss for the period	$ (12,062)	$ (8,700)	$ (11,074)	$ (11,819)	$ (20,762)	$ (22,893)
Weighted average number of shares outstanding, Basic	3,230,827		2,529,523		3,227,629	2,441,136
Weighted average number of shares outstanding, Diluted	3,230,827		2,529,523		3,227,629	2,441,136
Basic loss ($ per share)	$ (3.73)		$ (4.38)		$ (6.43)	$ (9.38)
Diluted loss ($ per share)	$ (3.73)		$ (4.38)		$ (6.43)	$ (9.38)

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Loss per Share - Anti-Dilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Stock Options
Anti-dilutive stock options
Ordinary share equivalents excluded from the calculations of diluted earnings per share	70,796	78,048	72,752	78,048
Restricted Share Units ("RSUs")
Anti-dilutive stock options
Ordinary share equivalents excluded from the calculations of diluted earnings per share	36,705	46,901	37,199	46,901
Warrants
Anti-dilutive stock options
Ordinary share equivalents excluded from the calculations of diluted earnings per share	262,384	262,393	262,384	262,393

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Significant Arrangements and License Agreements (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2021	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jul. 13, 2022 country
License Agreement
Number of countries, exclusive rights are distributed.						9
Number of additional countries rights are distributed						5
Revenue accounted for under Topic 606 | $		$ 2,243	$ 9,191	$ 9,833	$ 17,211
SIVEXTRO
License Agreement
Percentage of net product sales recognized	100.00%

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Commitments and Contingencies (Details) € in Millions, $ in Millions	1 Months Ended	6 Months Ended
	Aug. 31, 2021 EUR (€)	Jun. 30, 2023 USD ($)	Jul. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Acquisition of Zavante
Losses under purchase commitment		$ 0.4
Accounts payable
Acquisition of Zavante
Minimum annual commitment and royalty obligation in the year of 2022 and 2023		6.3
Accrued expense and other current liabilities
Acquisition of Zavante
Minimum annual commitment and royalty obligation in the year of 2022 and 2023		$ 1.0
2022 minimal annual commitment				$ 2.6
Purchase Obligation				$ 4.3
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
Hovione Supply Agreement | Subsequent Event
Acquisition of Zavante
Minimum annual commitment and royalty obligation in the year of 2022 and 2023			$ 6.3
Minimum annual commitment and royalty obligation in the year of 2024 to 2030			$ 1.0

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Subsequent Events (Details) $ in Millions	Jul. 30, 2023 USD ($)
Subsequent Event | Asset Purchase Agreement with Sumitomo Pharma Co., Ltd
Subsequent Event [Line Items]
Proceeds from sale of assets and rights	$ 15.0