Conference call to be held on Thursday, March 30 at 8:30 a.m. ET

Theriva Biologics (NYSE American: TOVX), a diversified clinical-stage company developing therapeutics designed to treat cancer and related diseases in areas of high unmet need, today announced that it plans to host a conference call on Thursday, March 30, 2023, at 8:30 a.m. ET to discuss its financial results for the fourth quarter and full-year ended December 31, 2022 and provide a corporate update. The call was originally scheduled for Monday, March 27, 2023, at 8:30 a.m. ET.

Individuals may participate in the live call via telephone by dialing 1-877-451-6152 (domestic) or 1-201-389-0879 (international) and using the conference ID: 13736047. Participants are asked to dial in 15 minutes before the start of the call to register. Investors and the public can access the live and archived webcast of this call via the “News & Media” section of the company’s website, https://www.therivabio.com, under “Events” or by clicking here, up to 90 days after the call.