Altimmune Announces Third Quarter 2025 Financial Results and Business Updates

48-week Data from Phase 2b IMPACT Trial of Pemvidutide in MASH Expected Before Year End

End-of-Phase 2 Meeting with FDA for MASH Program Scheduled in Fourth Quarter

Executive Leadership Strengthened with Appointments of Chief Medical Officer, Chief Commercial Officer, and Chief Legal Officer

Cash, cash equivalents and short-term investments of $211 million as of September 30, 2025

Webcast to be held today, November 6, 2025, at 8:30 a.m. ET

GAITHERSBURG, Md., Nov. 06, 2025 (GLOBE NEWSWIRE) -- Altimmune, Inc. (Nasdaq: ALT), a late clinical-stage biopharmaceutical company developing peptide-based therapeutics for liver and cardiometabolic diseases, today provided a corporate update and announced financial results for the quarter ended September 30, 2025.

“We have made a number of important advancements in the second half of 2025 and are approaching a major inflection point for the pemvidutide MASH program. Later this quarter we expect two milestones that will set the stage for 2026 and beyond, including our scheduled, in-person End-of-Phase 2 Meeting with the FDA which was granted to the Company based upon the strength of our 24-week IMPACT trial data. In addition, the 48-week data from the IMPACT trial is expected before year end and we look forward to assessing the longer treatment duration of pemvidutide in this MASH patient population,” said Vipin K. Garg, Ph.D., President and Chief Executive Officer of Altimmune. “At the End-of-Phase 2 meeting, we will seek alignment with the FDA on the proposed design of our Phase 3 MASH trial. One of the attributes of the design is the flexibility to adapt the trial pending the outcome of emerging regulatory discussions around approvable MASH endpoints, which could include the potential adoption of non-invasive tests (NITs) and AI-based biopsy readings.”

“Beyond MASH, we recently announced completion of patient recruitment and randomization in the RECLAIM trial of pemvidutide in alcohol use disorder (AUD), ahead of our expected enrollment timeline. Our ability to enroll this trial so quickly is a clear indication of the unmet need in AUD, a condition affecting millions of patients with currently approved therapies providing limited benefit. In addition to the clinical and regulatory progress, we are continuing to build the organization for our next phase of growth with several strategic additions to our management team, including the recent appointments of Dr. Christophe Arbet-Engels as Chief Medical Officer, Linda Richardson as Chief Commercial Officer and Robin Abrams as Chief Legal Officer. Christophe, Linda and Robin bring a wealth of expertise to our leadership team. They have already made significant contributions to our clinical, regulatory and organizational strategy and we are excited to continue benefiting from their deep experience.”

Recent Highlights and Anticipated Milestones

Metabolic Dysfunction-Associated Steatohepatitis (MASH)

Alcohol Use Disorder (AUD)

Alcohol-associated Liver Disease (ALD)

Corporate Updates

Financial Results for the Three Months Ended September 30, 2025

Conference Call Information:

Following the conclusion of the call, the webcast will be available for replay on the Investor Relations (IR) page of the Company’s website at www.altimmune.com. The Company has used, and intends to continue to use, the IR portion of its website as a means of disclosing material non-public information and for complying with disclosure obligations under Regulation FD.

About Pemvidutide

Pemvidutide is a novel, investigational peptide with balanced 1:1 glucagon/GLP-1 dual receptor agonist activity, in development for the treatment of metabolic dysfunction-associated steatohepatitis (MASH), alcohol use disorder (AUD) and alcohol-associated liver disease (ALD). The activation of glucagon receptors results in direct effects on the liver, including reductions in liver fat, inflammation and fibrosis, while GLP-1 receptors mediate metabolic effects such as appetite suppression and weight loss.

The FDA granted Fast Track designations to pemvidutide for the treatment of MASH and AUD, both areas of significant unmet medical need. The 48-week readout from the ongoing IMPACT Phase 2b MASH trial is expected in fourth quarter 2025. Phase 2 trials in AUD (RECLAIM) and ALD (RESTORE) were initiated in May 2025 and July 2025, respectively, and are currently ongoing.

About Altimmune

Altimmune is a late clinical-stage biopharmaceutical company developing novel peptide-based therapeutics for liver and cardiometabolic diseases. The Company’s lead product candidate is pemvidutide, a glucagon/GLP-1 dual receptor agonist for the treatment of metabolic dysfunction-associated steatohepatitis (MASH), alcohol use disorder (AUD) and alcohol-associated liver disease (ALD). For more information, please visit www.altimmune.com.

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Forward-Looking Statement

Any statements made in this press release related to the development or commercialization of pemvidutide, an investigational product candidate, and other business and financial matters including without limitation, clinical trial study design, status, correspondence, results and data, including the ongoing RECLAIM, RESTORE and IMPACT Trials, the timing of key milestones for the Company’s clinical assets, future plans or expectations for pemvidutide for the treatment of MASH, AUD and ALD, and the prospects for receiving regulatory approval or commercializing or selling any product or drug candidates, financial results, and the impact of the changes to our leadership and governance structure, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. In addition, when or if used in this press release, the words "may," "could," "should," "anticipate," "believe," "estimate," "expect," "intend," "plan," "predict" and similar expressions and their variants, as they relate to Altimmune, Inc. may identify forward-looking statements. The Company cautions that these forward-looking statements are subject to numerous assumptions, risks, and uncertainties, which change over time. Important factors that may cause actual results to differ materially from the results discussed in the forward-looking statements or historical experience include risks and uncertainties, including risks relating to: delays in regulatory review, manufacturing and supply chain interruptions, access to clinical sites, enrollment, adverse effects on healthcare systems and disruption of the global economy; the reliability of the results of studies relating to human safety and possible adverse effects resulting from the administration of the Company's product candidates; the Company's ability to manufacture clinical trial materials on the timelines anticipated; and the success of future product advancements, including the success of future clinical trials. Further information on the factors and risks that could affect the Company's business, financial conditions and results of operations are contained in the Company's filings with the U.S. Securities and Exchange Commission, including under the heading "Risk Factors" in the Company's most recent annual report on Form 10-K, quarterly report on Form 10-Q and the Company’s other filings with the SEC, which are available at www.sec.gov.

Investor Contact:

Lee Roth

Burns McClellan

Phone: 646-382-3403

lroth@burnsmc.com

Media Contact:

Savannah Valade

Real Chemistry

altimmune@realchemistry.com

This press release was published by a CLEAR® Verified individual.