RecruitingPhase 3Drug trialA Study to Assess the Efficacy and Safety of Induction Therapy With Afimkibart (Also Known as RO7790121) in Participants With Moderately to Severely Active Ulcerative ColitisThis Phase III, multicenter, double-blind, placebo-controlled study will evaluate the efficacy and safety of induction therapy with Afimkibart (RO7790121) compared with placebo in participants with moderately to severely active ulcerative colitis (UC).