Virpax® Pharmaceuticals, Inc. (“Virpax” or the “Company”) (NASDAQ: VRPX), a company specializing in developing non-addictive products for pain management, post-traumatic stress disorder, central nervous system (CNS) disorders and anti-viral indications, today announced that it has entered into a cooperative research and development agreement (CRADA) with the U.S. Army Institute of Surgical Research (USAISR) to evaluate Virpax’s Probudur™, an injectable long-acting liposomal bupivacaine in a hydrogel formulation that is injected at the wound site. Probudur is being developed to significantly reduce or eliminate the need for opioids after surgery in approved indications. Probudur is a local anesthetic that binds to the sodium channel, preventing pain signals from reaching the brain. In pre-clinical trials, Probudur has shown long duration pain control for at least 96 hours. The USAISR is the U.S. Department of Defense’s (DOD) primary laboratory for developing solutions for trauma and critical care challenges in combat casualties.

Virpax® Pharmaceuticals, Inc. (“Virpax” or the “Company”) (NASDAQ:VRPX) achieved significant milestones relating to its pipeline of product candidates as of the end of 2021, which are summarized below.