COCP News & Events

Cocrystal Pharma announces the first subjects have been dosed in a Phase 1b norovirus challenge study to evaluate CDI-988 as both a preventive and treatment for norovirus infections. This cohort is to assess the infectivity rate of the challenge inoculum, GII.2. CDI-988 is a direct-acting, oral antiviral designed to inhibit a highly conserved region of the viral 3CL protease present in all known norovirus strains, including GII.2, GII.4 and recently re-emerging GII.17 variants. It is the first oral antiviral drug candidate developed for norovirus acute gastroenteritis.

Cocrystal Pharma announces the approval from the Institutional Review Board, IRB, at Emory University School of Medicine to initiate a Phase 1b human challenge study with CDI-988. This study aims to evaluate CDI-988 as both a preventive and treatment for norovirus infections. Initial screening of study subjects is currently underway, with enrollment expected to begin in the first quarter of 2026. The IRB approval from Emory University School of Medicine follows Cocrystal's prior regulatory milestones, including U.S. Food and Drug Administration clearance of its investigational New Drug application.

"We expect to begin enrolling participants in the first quarter of 2026 for our norovirus challenge study evaluating CDI-988, our oral broad-spectrum protease inhibitor," said Sam Lee, Ph.D., President and co-CEO of Cocrystal. "This study will provide an initial assessment of CDI-988 for both prevention and treatment of norovirus infection. Norovirus is a major cause of acute gastroenteritis and is highly contagious. It spreads rapidly in enclosed environments such as cruise ships, military bases, nursing homes, and hospitals. At present, there is no FDA-approved treatment or prevention for norovirus infection."

Cocrystal Pharma announces the completion of a private placement of units priced at-the-market under Nasdaq rules with 743,024 shares of its common stock at a purchase price of $1.39 per unit for proceeds of $1.03 million and unregistered warrants to purchase up to 1,486,048 shares of common stock at an exercise price of $1.24 per share. The warrants are exercisable upon issuance and will expire in 27 months. The four Investors in the private placement are Cocrystal Directors Phillip Frost, M.D., who co-founded the Company and serves as Chairman and CEO of OPKO Health, Inc., Fred Hassan, who is Chairman of the investment firm Caret Group and Director of the private equity firm Warburg Pincus and Richard Pfenniger, and Cocrystal co-CEO and CFO James Martin. The potential additional proceeds to the Company from the warrants, if fully exercised on a cash basis, will be approximately $1.83 million. No assurance can be given that any of these warrants will be exercised. The Company intends to use the net proceeds from this offering to support its clinical development programs, for working capital and general corporate purposes.