Cocrystal Pharma says last subject dosed in Phase 1b norovirus challenge study
Cocrystal Pharma announced on September 9, 2026 that the last subject has been dosed in its Phase 1b norovirus challenge study of CDI-988, an oral antiviral candidate. The company reported no serious adverse events to date and expects preliminary efficacy results in late 2026 or early 2027. The filing is a clinical development update and does not include financial results.
Key points
- Last subject dosed in the Phase 1b challenge study (NCT07198139) evaluating CDI-988 as a preventive and treatment for norovirus
- No serious adverse events reported to date
- Preliminary efficacy results expected in late 2026 or early 2027
- Primary endpoint is efficacy versus placebo in reducing the incidence of clinical symptoms; study conducted at Emory University School of Medicine
The filing
Written by AI on Nov 9, 2026, 10:08 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on September 09, 2026.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.