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Abivax Reports Positive ABTECT Maintenance Part 2 Results for Obefazimod, Demonstrating Meaningful Clinical Benefit in Refractory UC Patients and Strengthening the Phase 3 Maintenance Safety Database
Abivax Reports Positive ABTECT Maintenance Part 2 Results for Obefazimod, Demonstrating Meaningful Clinical Benefit in Refractory UC Patients and
About this update from Abivax Sa
EQS-News: ABIVAX / Key word(s): Study results/Study Abivax Reports Positive ABTECT Maintenance Part 2 Results for Obefazimod, Demonstrating Meaningful Clinical Benefit in Refractory UC Patients and Strengthening the Phase 3 Maintenance Safety Database 29.06.2026 / 22:05 CET/CEST The issuer is solely responsible for the content of this announcement.Abivax Reports Positive ABTECT Maintenance Part 2 Results for Obefazimod, Demonstrating Meaningful Clinical Benefit in Refractory Ulcerative Colitis Patients and Strengthening the Phase 3 Maintenance Safety DatabaseObefazimod delivered meaningful clinical benefit in a highly refractory ulcerative colitis (“UC”) population, with 37.2% of induction non-responders achieving clinical remission and 34.5% achieving endoscopic remission at Week 44 following continued 50 mg treatmentDose escalation to obefazimod 50 mg recaptured clinical remission in 45.5% of patients who relapsed during ABTECT Maintenance Part 1, supporting a practical dose-escalation strategy for regaining and sustaining disease control over timeAcross the integrated Phase 2 and Phase 3 UC program (1,704 patient-years of exposure), exposure-adjusted incidence rates (“EAIRs”) for malignancies excluding non-melanoma skin cancer (“NMSC”) were 0.35 and 0.64 events per 100 patient-years (“PYs”), and for NMSC were 0.59 and 0.64 events per 100 PYs in the all-active combined (50 mg + 25 mg) and 50 mg cohorts respectively, all consistent with expected UC background ratesIn ABTECT Maintenance Part 2, EAIRs for malignancies excluding NMSC were 0.48 and 0.69 events per 100 PYs, and for NMSC were 0.95 and 0.69 events per 100 PYs, in the all-active combined and 50 mg cohorts respectively, all consistent with expected UC background ratesAbivax to host a conference call and webcast today at 4:30 p.m. EDT (10:30 p.m. CEST) to discuss the resultsPARIS, France – June 29, 2026 – 10:05 pm CEST – Abivax SA (Euronext Paris: FR0012333284 – ABVX / Nasdaq: ABVX) (“Abivax” or the “Company”), a clinical-stage biotechnology company focused on developing therapeutics that harness the body’s natural regulatory mechanisms to stabilize the immune response in patients with chronic inflammatory diseases, today announced topline results from ABTECT Maintenance Part 2, the supplemental portion of its Phase 3 UC maintenance program evaluating obefazimod, its investigat...