health

Biotech takeover target Abivax sinks over 43% as cancer cases cloud trial data for bowel disease drug

A clinical trial update wiped out billions in the French company's market cap and raised questions over a potential takeover.

Biotech takeover target Abivax sinks over 43% as cancer cases cloud trial data for bowel disease drug

TL;DR

  • Abivax shares fell 43.6% following new data on its ulcerative colitis drug, obefazimod.
  • The drug met efficacy endpoints but showed cancer cases among patients, particularly at the higher dose.
  • Investigative assessments suggest the cancer cases are unrelated to the treatment.
  • Analysts expressed concerns about the "cancer signal" creating an overhang, leading to a downgrade from Buy to Hold.
  • Despite the setback, Abivax's drug is considered a potential best-in-class treatment for ulcerative colitis and Crohn's disease.
  • The company is considered a takeover target, with CEO Marc de Garidel confident in securing better terms for partnerships after future data readouts.
  • Abivax plans to submit obefazimod for FDA approval in the fourth quarter, with a potential launch in 2027.
  • Potential buyers are likely to wait for the full data set, expected in October, before making a move.