Abivax SAPositive Phase 3 ulcerative colitis data for obefazimod, showing clinical and endoscopic remission in refractory patients.

Abivax shares surged 27% in early trading after the biotech reported positive topline supplemental data from its Phase 3 ulcerative colitis maintenance program. Obefazimod delivered meaningful clinical benefit in a highly refractory population, with 37.2% of induction non-responders achieving clinical remission and 34.5% achieving endoscopic remission at Week 44 following continued 50 mg treatment. Dose escalation to 50 mg recaptured clinical remission in 45.5% of patients who relapsed during ABTECT Maintenance Part 1, supporting a practical dose-escalation strategy. CEO Marc de Garidel said the expanded cumulative safety data strengthens confidence in the long-term safety profile and reinforces the favorable benefit-risk profile ahead of the planned NDA submission later this year.
Abivax SAPositive Phase 3 ulcerative colitis data for obefazimod, showing clinical and endoscopic remission in refractory patients.