Opus Genetics presents gene therapy data; 3 of 4 BEST1 participants improved
Opus Genetics presented interim clinical data from its OPGx-BEST1 and OPGx-LCA5 gene therapy trials at Retina in Rio 2026 on October 14, 2026, and furnished the press release and slides in this 8-K. The company said the data are interim and based on small participant groups, and it expects Phase 3 dosing for OPGx-LCA5 to begin in the fourth quarter of 2026.
Key points
- OPGx-BEST1 low-dose Cohort 1: three of four evaluable participants (75%) showed improved retinal sensitivity in the treated transitional zone.
- OPGx-LCA5 adults showed sustained improvements in visual acuity and light sensitivity through 24 months; three pediatric participants showed results through six months.
- OPGx-BEST1 high-dose Cohort 2 has completed enrollment with 11 participants.
- Phase 3 dosing for OPGx-LCA5 is expected in the fourth quarter of 2026.
The filing
Written by AI on Nov 9, 2026, 8:36 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 October 15, 2026.
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