Tivic Completes Verification of Entolimod™ Cell Line: First Step in Establishing CGMP Manufacturing for BLA Filing

By: Tivic Health® Systems, Inc. via Business Wire

September 10, 2025 at 08:30 AM EDT

Tivic Health® Systems, Inc. (Nasdaq: TIVC), a diversified immunotherapeutics company, today announced that it has completed verification of its Entolimod™ cell line, the first step in establishing Current Good Manufacturing Practices (CGMP) in preparation for a Biologics License Application, or BLA.

Cell line verification in recombinant protein production is required because it ensures the processes used to grow cells and activate protein expression do not compromise the structural integrity of the protein or cause unwanted modifications that might adversely affect a protein’s function.

As part of the verification process, Tivic successfully produced new Entolimod proteins with its partner, Scorpius Biomanufacturing. In vitro testing then verified that the resulting protein structure and yields are suitable to move into larger batch production.

“The successful verification of our Entolimod protein production is a significant milestone towards commercialization of Entolimod,” stated Tivic CEO, Jennifer Ernst.

About Entolimod

Entolimod is a novel Toll-like Receptor 5 (TLR5) agonist that triggers NF-kB signaling, activating antiapoptotic and cell protective mechanisms. Under the FDA’s Animal Rule, Entolimod has been the subject of extensive trials for the treatment of acute radiation syndrome (ARS), and has demonstrated robust survival, enhanced GI tract recovery and improved hematopoiesis in animal models. Entolimod has been granted Fast Track Designation for ARS.

Tivic also holds the exclusive rights for Entolimod for the treatment of neutropenia, and has the option to license additional indications, including lymphocyte exhaustion, immunosenescence, and chronic radiation syndrome.

About Tivic Health Systems, Inc.

Tivic’s dual platform utilizes the body’s biopharmaceutical and bioelectronic systems to treat unmet medical needs through targeting the immune system.

Tivic’s biologics compounds activate an innate immune pathway to prevent cell death in the bone marrow and epithelial tissues across systems impacted by radiation and age. The company’s lead drug candidate, Entolimod™ for acute radiation syndrome, is a novel TLR5 agonist that has been granted Fast Track and Orphan Drug designations and is in late-stage development.

Tivic’s bioelectronic program is developing a novel, non-invasive medical device designed to target the neural pathways implicated in many prevalent and debilitating diseases. Early trials show promising signals that Tivic’s approach may regulate specific biologic responses, and the company believes its early-stage vagus nerve stimulation device has the potential to deliver clinical outcomes similar to or better than those of surgically implanted devices. To learn more about Tivic, visit: https://ir.tivichealth.com

Forward-Looking Statements

This press release may contain “forward-looking statements” that are subject to substantial risks and uncertainties. All statements, other than statements of historical fact, contained in this press release are forward-looking statements. Forward-looking statements contained in this press release may be identified by the use of words such as “anticipate,” “believe,” “contemplate,” “could,” “estimate,” “expect,” “intend,” “seek,” “may,” “might,” “plan,” “potential,” “predict,” “project,” “target,” “aim,” “should,” “will,” “would,” or the negative of these words or other similar expressions, although not all forward-looking statements contain these words. Forward-looking statements are based on Tivic Health Systems Inc.’s current expectations and are subject to inherent uncertainties, risks, and assumptions that are difficult to predict. Further, certain forward-looking statements are based on assumptions as to future events that may not prove to be accurate, including as a result of the company’s interactions with and guidance from the FDA and other regulatory authorities; changes to the company’s relationship with its partners; failure to obtain FDA or similar clearances or approvals and noncompliance with FDA or similar regulations; the company’s future development of its ncVNS treatment, Entolimod and Entolasta; changes to the company’s business strategy; timing and success of clinical trials and study results; regulatory requirements and pathways for approval; the company’s ability to successfully commercialize its product candidates in the future; changes in the markets and industries in which the company does business; consummation of any strategic transactions; the company’s need for, and ability to secure when needed, additional working capital; the company’s ability to maintain its Nasdaq listing; and changes in tariffs, inflation, legal, regulatory, political and economic risks. Accordingly, you are cautioned not to place undue reliance on such forward-looking statements. For a discussion of risks and uncertainties relevant to the company, and other important factors, see Tivic Health’s filings with the SEC, including, its Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on March 21, 2025, under the heading “Risk Factors”, as well as the company’s subsequent filings with the SEC. Forward-looking statements contained in this press release are made as of this date, and the company undertakes no duty to update such information except as required by applicable law.

View source version on businesswire.com: https://www.businesswire.com/news/home/20250910591885/en/

Contacts

Investor Contact:

Hanover International, Inc.

ir@tivichealth.com

Media Contact:

Deanne Eagle or Laura Min Jackson

media@tivichealth.com

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Tivic Completes Verification of Entolimod™ Cell Line: First Step in Establishing CGMP Manufacturing for BLA Filing

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