Soligenix Inc. (NASDAQ: SNGX) Working to Advance Heat-Stable Ricin Vaccine with Promising Efficacy

August 15, 2025 at 12:50 PM EDT

Ricin toxin is a potent biothreat, so lethal that even a dose the size of a grain of salt can be fatal within 48 to 72 hours.
RiVax(R) is a subunit protein vaccine that incorporates Soligenix’s ThermoVax(R) technology, which eliminates the need for cold-chain storage.
Soligenix reports that the RiVax antigen has been shown to be safe in phase 1 studies in humans, with future steps including pivotal animal efficacy studies.

With global security threats driving demand for advanced biodefense solutions, Soligenix (NASDAQ: SNGX) is advancing RiVax(R), a heat-stable recombinant vaccine candidate aimed at protecting against deadly ricin toxin exposure. Supported by proprietary stabilization technology and robust preclinical data demonstrating long-lasting immunity, SNGX’s RiVax represents both a critical public safety innovation and a significant market opportunity in the specialized vaccine sector.

Ricin toxin, derived from castor beans, is a potent biothreat, so lethal that even a dose the size of a grain of salt can be fatal within 48 to 72 hours, depending on the route of exposure (https://ibn.fm/H5pl6). RiVax is a subunit protein vaccine composed of a genetically inactivated version of the…

NOTE TO INVESTORS: The latest news and updates relating to SNGX are available in the company’s newsroom at https://ibn.fm/SNGX

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Soligenix Inc. (NASDAQ: SNGX) Working to Advance Heat-Stable Ricin Vaccine with Promising Efficacy

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