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Cocrystal Pharma Showcases CDI-988, the First Oral Antiviral for Norovirus Infection

Cocrystal Pharma, Inc. (COCP) | September 12, 2025

By Alice Johnson

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Cocrystal Pharma presented CDI-988, a potential first oral antiviral for norovirus infection, at the 9th International Calicivirus Conference.

The company highlighted CDI-988's mechanism of action and promising Phase 1 study results at the conference.

CDI-988, developed with Cocrystal's proprietary technology, shows broad-spectrum antiviral activity against multiple norovirus genogroups.

CDI-988: Potential Game-Changer

CDI-988 represents a significant advancement as the first oral antiviral for prevention and treatment of norovirus infection.

Clinical Progress and Milestones

The recent completion of Phase 1 study and FDA's IND clearance mark key milestones in CDI-988's clinical development.

Safety and Efficacy Profile

CDI-988 exhibited a favorable safety profile in human intestinal tissue with no serious adverse events reported in Phase 1 trials.

  • CDI-988's high exposure in the small intestine suggests a potential GI-targeted antiviral for norovirus infection.
  • The FDA authorization for a Phase 1b human challenge study reflects progress towards evaluating CDI-988 for norovirus prophylaxis and treatment.

Cocrystal Pharma's CDI-988 shows promise as a groundbreaking oral antiviral for norovirus, with significant safety and efficacy data backing its development. The company's innovative approach and regulatory progress position CDI-988 as a potential game-changer in antiviral therapeutics.