Q3 2022 revenue of $3.2 million, product sales and royalty revenue up 315% from prior year and 37% from Q2 2022
Strong sales growth of ALKINDI SPRINKLE® and Carglumic Acid
Third commercial product, Betaine Anhydrous, added to rare disease portfolio

DEER PARK, Ill., Nov. 10, 2022 (GLOBE NEWSWIRE) -- Eton Pharmaceuticals, Inc ("Eton" or "the Company") (NASDAQ:ETON), an innovative pharmaceutical company focused on developing and commercializing treatments for rare diseases, today reported financial results for the quarter ended September 30, 2022.

"Our third quarter results reflect the continued momentum we're seeing across our product portfolio. Product sales and royalties jumped 315% over the prior year period and 37% from the second quarter of 2022, marking the seventh straight quarter of sequential revenue growth. Physicians and patients are responding positively to ALKINDI SPRINKLE and Carglumic Acid, and both products still have long runways for growth ahead of them," said Sean Brynjelsen, CEO of Eton Pharmaceuticals.

"During the quarter, we added a third FDA-approved rare disease product. Betaine Anhydrous shares the same prescriber base as Carglumic Acid and makes for an ideal fit for our metabolic genetics sales force. With two commercial products in the market, the upcoming launch of Betaine, and the potential for additional product launches in 2023 and 2024, we are very excited about what lies ahead for the Company," concluded Brynjelsen.

Third Quarter and Recent Business Highlights

Reported seventh straight quarter of sequential growth in product sales and royalty revenue. Eton reported total third quarter 2022 revenue of $3.2 million, comprised entirely of product sales and royalty revenue, representing growth of 315% over the prior year and 37% over the second quarter of 2022.

Continued strong growth in sales of ALKINDI SPRINKLE. Sales of ALKINDI SPRINKLE grew 183% over the prior year period and 19% over the second quarter of 2022. Growth came from both new and existing prescribers.

Increasing adoption of Carglumic Acid. Now in its third full calendar quarter since launch, the product continues to see a strong reception from prescribers and patients. Carglumic Acid sales grew 40% over the second quarter and the company believes it remains on track to reach its goal of capturing 25-35% market share of the estimated $50 million market.

Acquisition of a third FDA-approved rare disease product. During the quarter, Eton announced the acquisition of Betaine Anhydrous. The product shares the same metabolic geneticist prescriber base as Carglumic Acid and is expected to be accretive to Eton's earnings in 2023.

FDA Approval of Zonisade™. The product is part of Eton's multi-product neurology oral solution agreement with Azurity Pharmaceuticals. Azurity is solely responsible for commercializing the product; Eton is entitled to receive milestone payments and royalties on net sales of the product. Zonisade was launched in October, triggering a $5 million milestone payment to Eton that will be recognized in the fourth quarter.

Third Quarter Financial Results

Net Sales: Net sales for the third quarter of 2022 were $3.2 million compared with $0.8 million in the prior year period. In both periods, revenue was comprised entirely of product sales and royalties, and the increase was primarily driven by growth in ALKINDI SPRINKLE and the launch of Carglumic Acid in late 2021.

Gross Profit: Gross profit for the third quarter of 2022 was $2.0 million compared with $0.1 million in the prior year period.

Research and Development (R&D) Expenses: R&D expenses for the third quarter of 2022 were $0.7 million compared to $2.7 million in the prior year period. The decrease was primarily due to $1.1 million in expenses related to Biorphen® and Rezipres® conversion projects in the prior year period, and decreased development costs for new product candidates.

General and Administrative (G&A) Expenses: G&A expenses for the third quarter of 2022 were $4.2 million compared to $3.3 million in the prior year period. Cash G&A expenses for the third quarter of 2022 were $3.2 million, compared to $2.4 million in the prior year period. The increase in G&A expenses was mainly due to incremental marketing and compensation to support product sales growth, partially offset by lower legal and consulting expenses.

Net Income/Loss: Net loss for the third quarter of 2022 was $3.0 million or $0.12 per basic and diluted share compared to a net loss of $6.1 million or $0.24 per diluted share in the prior year period.

Cash Position: As of September 30, 2022, the company had cash and cash equivalents of $13.4 million. The Company expects to receive a $5.0 million milestone payment for the launch of Zonisade during the fourth quarter.

Conference Call and Webcast Information

As previously announced, Eton Pharmaceuticals will host a its third quarter 2022 conference call as follows:

Date	November 10, 2022
Time	4:30 p.m. ET (3:30 p.m. CT)
Register (audio only):	Click Here
Webcast (live and replay):	Click here

The webcast can be accessed under "Events & Presentations" in the Investors section of the company's website at https://ir.etonpharma.com. The webcast will be archived and made available for replay on the company's website approximately two hours after the call and will be available for 30 days.

Forward-Looking Statements

Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, including statements associated with the expected ability of Eton to undertake certain activities and accomplish certain goals and objectives. These statements include but are not limited to statements regarding Eton's business strategy, Eton's plans to develop and commercialize its product candidates, the safety and efficacy of Eton's product candidates, Eton's plans and expected timing with respect to regulatory filings and approvals, and the size and growth potential of the markets for Eton's product candidates. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Words such as "believes," "anticipates," "plans," "expects," "intends," "will," "goal," "potential" and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based upon Eton's current expectations and involve assumptions that may never materialize or may prove to be incorrect. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of various risks and uncertainties, which include, without limitation, risks associated with the process of discovering, developing and commercializing drugs that are safe and effective for use as human therapeutics, and in the endeavor of building a business around such drugs. These and other risks concerning Eton's development programs and financial position are described in additional detail in Eton's filings with the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. Eton undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.

About Eton Pharmaceuticals

Eton Pharmaceuticals, Inc. is an innovative pharmaceutical company focused on developing and commercializing treatments for rare diseases. The Company currently has three FDA approved products in ALKINDI SPRINKLE®, Carglumic Acid tablets, and Betaine Anhydrous for oral solution, and three late-stage pipeline candidates under development with dehydrated alcohol injection, ZENEO® hydrocortisone autoinjector, and ET-400. In addition, the Company receives royalties on three FDA-approved products and is entitled to receive milestone payments on other products. For more information, please visit our website at www.etonpharma.com.

Investor Relations:

Lisa M. Wilson, In-Site Communications, Inc.

T: 212-452-2793

E: lwilson@insitecony.com

Eton Pharmaceuticals, Inc.
Condensed Statements of Operations
(In thousands, except per share amounts)
(Unaudited)

	For the three months ended						For the nine months ended
	September 30,			September 30,			September 30,			September 30,
	2022			2021			2022			2021
Revenues:
Licensing revenue	$	—		$	—		$	5,000		$	14,000
Product sales and royalties		3,219			775			7,753			1,739
Total net revenues		3,219			775			12,753			15,739

Cost of sales:
Licensing revenue		—			—			990			1,500
Product sales and royalties		1,201			654			3,805			955
Total cost of sales		1,201			654			4,795			2,455

Gross profit		2,018			121			7,958			13,284

Operating expenses:
Research and development		744			2,678			3,052			5,554
General and administrative		4,169			3,290			14,228			10,539
Total operating expenses		4,913			5,968			17,280			16,093

(Loss) income from operations		(2,895	)		(5,847	)		(9,322	)		(2,809	)

Other (expense) income:
Interest and other expense, net		(150	)		(247	)		(611	)		(731	)
Gain on PPP loan forgiveness		—			—			—			365
Gain on equipment sale		—			—			—			181

(Loss) income before income tax expense		(3,045	)		(6,094	)		(9,933	)		(2,994	)

Income tax expense		—			—			—			—

Net (loss) income	$	(3,045	)	$	(6,094	)	$	-9,933		$	(2,994	)
Net loss (income) per share, basic	$	(0.12	)	$	(0.24	)	$	(0.40	)	$	(0.12	)
Net loss (income) per share, diluted	$	(0.12	)	$	(0.24	)	$	(0.40	)	$	(0.12	)
Weighted average number of common shares outstanding, basic		25,365			25,276			25,066			25,181
Weighted average number of common shares outstanding, diluted		25,365			25,276			25,066			25,181

Eton Pharmaceuticals, Inc.
Condensed Balance Sheets
(in thousands, except share and per share amounts)

	September 30, 2022			December 31, 2021
	(Unaudited)
Assets
Current assets:
Cash and cash equivalents	$	13,378		$	14,406
Accounts receivable, net		1,498			5,471
Inventories		481			550
Prepaid expenses and other current assets		1,063			3,177
Total current assets		16,420			23,604

Property and equipment, net		73			115
Intangible assets, net		4,973			3,621
Operating lease right-of-use assets, net		42			104
Other long-term assets, net		12			21
Total assets	$	21,520		$	27,465

Liabilities and stockholders' equity
Current liabilities:
Accounts payable	$	1,054		$	1,774
Current portion of long-term debt		708			1,418
Accrued liabilities		2,899			1,366
Total current liabilities		4,661			4,558

Long-term debt, net of discount and including accrued fees		5,678			5,262
Operating lease liabilities, net of current portion		—			15

Total liabilities		10,339			9,835

Commitments and contingencies (Note 11)

Stockholders' equity
Common stock, $0.001 par value; 50,000,000 shares authorized; 25,297,037 and 24,626,004 shares issued and outstanding at September 30, 2022 and December 31, 2021, respectively		25			25
Additional paid-in capital		115,202			111,718
Accumulated deficit		(104,046	)		(94,113	)
Total stockholders' equity		11,181			17,630

Total liabilities and stockholders' equity	$	21,520		$	27,465

Eton Pharmaceuticals, Inc.
Condensed Statements of Cash Flows
(In thousands)
(Unaudited)

	Nine months ended			Nine months ended
	September 30, 2022			September 30, 2021
Cash flows from operating activities
Net loss	$	(9,933	)	$	(2,994	)

Adjustments to reconcile net loss to net cash provided by operating activities:
Stock-based compensation		3,332			2,518
Depreciation and amortization		1,522			325
Debt discount amortization		96			110
Gain on forgiveness of debt		—			(365	)
Gain on sale of equipment		—			(181	)
Changes in operating assets and liabilities:
Accounts receivable		3,973			(337	)
Inventories		69			908
Prepaid expenses and other assets		2,129			(283	)
Accounts payable		(720	)		699
Accrued liabilities		1,513			(4	)
Net cash provided by operating activities		1,981			396

Cash flows from investing activities
Proceeds from sale of equipment		—			700
Purchase of product license rights		(2,750	)		—
Purchases of property and equipment		(26	)		(5	)
Net cash (used in) provided by investing activities		(2,776	)		695

Cash flows from financing activities
Repayment of long-term debt		(385	)		(150	)
Proceeds from employee stock purchase plan and stock option exercises		152			473
Net cash (used in) provided by financing activities		(233	)		323

Change in cash and cash equivalents		(1,028	)		1,414
Cash and cash equivalents at beginning of period		14,406			21,295
Cash and cash equivalents at end of period	$	13,378		$	22,709

Supplemental disclosures of cash flow information
Cash paid for interest	$	545		$	603

Eton Pharmaceuticals Reports Third Quarter 2022 Financial Results