SIGA Amends International Promotion Agreement with Meridian to Enhance International Growth Opportunities of Oral TPOXX®

NEW YORK, April 01, 2024 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (NASDAQ: SIGA), a commercial-stage pharmaceutical company focused on health security and infectious disease, announced today that it entered into an amendment to its international promotion agreement with Meridian Medical Technologies, Inc. (Meridian). Effective June 1, SIGA will drive international promotion activities for oral TPOXX^® while maintaining its contractual relationship with Meridian to maintain continuity for key customer relationships.

“We are excited about the long-term growth opportunities for oral TPOXX and believe this amendment to the Meridian promotion agreement will be instrumental in driving our expansion efforts for TPOXX outside the U.S.,” said Diem Nguyen, Chief Executive Officer. “This strategic move, which gives SIGA greater control, will enable us to meet our global customers’ needs more effectively during these uncertain times of orthopox threats. The ability to forge direct relationships with key international stakeholders is essential to our plans to expand access to TPOXX and maximize value creation.”

This amendment, which extends the term of the promotion agreement by two years with respect to specific territories including the European Union, gives SIGA primary responsibility for promoting oral TPOXX. Certain existing contracts under the promotion agreement, including Meridian’s contract with the European Commission’s DG Health Emergency Preparedness and Response Authority (HERA), will remain in effect.

ABOUT SIGA TECHNOLOGIES, INC. 
SIGA Technologies, Inc. is a commercial-stage pharmaceutical company focused on the health security market. Health security comprises countermeasures for biological, chemical, radiological and nuclear attacks (biodefense market), vaccines and therapies for emerging infectious diseases, and health preparedness. Our lead product is TPOXX^®, also known as tecovirimat and ST-246^®, an orally administered and IV formulation antiviral drug for the treatment of human smallpox disease caused by variola virus.

ABOUT TPOXX^®
TPOXX is a novel small-molecule drug and the U.S. maintains a supply of TPOXX under Project BioShield. The oral formulation of TPOXX was approved by the FDA for the treatment of smallpox in 2018, and the IV formulation was approved for the same indication in 2022. The full label is available by clicking here. Oral tecovirimat received approval from the European Medicines Agency (EMA) and the Medicines and Healthcare Products Regulatory Agency (MHRA) in the United Kingdom in 2022. The EMA and UK approvals include labeling for oral tecovirimat indicating its use for the treatment of smallpox, monkeypox, cowpox, and vaccinia complications following vaccination against smallpox. The full label is available by clicking here. In September 2018, SIGA signed a contract with the Biomedical Advanced Research and Development Authority (BARDA), part of the office of the Administration for Strategic Preparedness and Response within the U.S. Department of Health and Human Services, for additional procurement and development related to both oral and intravenous formulations of TPOXX. For more information about SIGA, please visit www.siga.com.

ABOUT ORTHOPOXVIRUSES
Orthopoxvirus, belonging to the family of poxvirus that infect humans, include smallpox, mpox, cowpox and vaccinia. Smallpox, a highly contagious and fatal disease, presents itself as a risk to global health security today given fears of its release accidentally or intentionally as a bioweapon.   Mpox virus, similar to smallpox, causes intermittent human infections, painful lesions, and possible case fatalities. Mpox outbreaks have been observed recently in the US, Europe, and Central & West Africa. Whether through natural occurrence or potential bioweapon warfare, orthopox threatens global health. Anti-virals and vaccines serve as possible solutions to address these threats.

FORWARD-LOOKING STATEMENTS
This press release contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including statements relating to SIGA’s future business development including securing new contracts and partnerships. The words or phrases “can be,” “expects,” “may affect,” “may depend,” “believes,” “estimate,” “project” and similar words and phrases are intended to identify such forward-looking statements. Such forward-looking statements are subject to various known and unknown risks and uncertainties, and SIGA cautions you that any forward-looking information provided by or on behalf of SIGA is not a guarantee of future performance. SIGA’s actual results could differ materially from those anticipated by such forward-looking statements due to a number of factors, some of which are beyond SIGA’s control, including, but not limited to, (i) the risk that BARDA elects, in its sole discretion as permitted under the 19C BARDA Contract (the “BARDA Contract”), not to exercise all, or any, of the remaining unexercised options under those contracts, (ii) the risk that SIGA may not complete performance under the BARDA Contract on schedule or in accordance with contractual terms, (iii) the risk that the BARDA Contract, U.S. Department of Defense contracts are modified or canceled at the request or requirement of the U.S. Government, (iv) the risk that the nascent international biodefense market does not develop to a degree that allows SIGA to continue to successfully market TPOXX internationally, (v) the risk that potential products, including potential alternative uses or formulations of TPOXX that appear promising to SIGA or its collaborators, cannot be shown to be efficacious or safe in subsequent pre-clinical or clinical trials, (vi) the risk that target timing for deliveries of product to customers, and the recognition of related revenues, are delayed or adversely impacted by the actions, or inaction, of contract manufacturing organizations, or other vendors, within the supply chain, or due to coordination activities between the customer and supply chain vendors, (vii) the risk that SIGA or its collaborators will not obtain appropriate or necessary governmental approvals to market these or other potential products or uses, (viii) the risk that SIGA may not be able to secure or enforce sufficient legal rights in its products, including intellectual property protection, (ix) the risk that any challenge to SIGA’s patent and other property rights, if adversely determined, could affect SIGA’s business and, even if determined favorably, could be costly, (x) the risk that regulatory requirements applicable to SIGA’s products may result in the need for further or additional testing or documentation that will delay or prevent SIGA from seeking or obtaining needed approvals to market these products, (xi) the risk that the volatile and competitive nature of the biotechnology industry may hamper SIGA’s efforts to develop or market its products, (xii) the risk that changes in domestic or foreign economic and market conditions may affect SIGA’s ability to advance its research or may affect its products adversely, (xiii) the effect of federal, state, and foreign regulation, including drug regulation and international trade regulation, on SIGA’s businesses, (xiv) the risk of disruptions to SIGA’s supply chain for the manufacture of TPOXX®, causing delays in SIGA’s research and development activities, causing delays or the re-allocation of funding in connection with SIGA’s government contracts, or diverting the attention of government staff overseeing SIGA’s government contracts, (xv) risks associated with actions or uncertainties surrounding the debt ceiling, (xvi) the risk that the U.S. or foreign governments' responses (including inaction) to national or global economic conditions or infectious diseases, such as COVID-19, are ineffective and may adversely affect SIGA’s business, and (xvii) risks associated with responding to the current mpox outbreak, as well as the risks and uncertainties included in Item 1A “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2023 and SIGA's subsequent filings with the Securities and Exchange Commission. SIGA urges investors and security holders to read those documents free of charge at the SEC's website at http://www.sec.gov. All such forward-looking statements are current only as of the date on which such statements were made. SIGA does not undertake any obligation to update publicly any forward-looking statement to reflect events or circumstances after the date on which any such statement is made or to reflect the occurrence of unanticipated events.

The information contained in this press release does not necessarily reflect the position or the policy of the Government and no official endorsement should be inferred.

Contacts:

Investors Laine Yonker, Edison Group lyonker@edisongroup.com		Media Holly Stevens, Berry & Company hstevens@berrypr.com