A Phase 3 Randomized, Double-blind, Placebo-Controlled, Parallel Group, Multicenter Protocol in Adults with an Open Label Study in Adolescents to Evaluate the Efficacy and Safety of Induction and Maintenance Therapy with Icotrokinra in Participants With Moderately to Severely Active Ulcerative Colitis

INDUCTION: To evaluate the efficacy of icotrokinra versus placebo in inducing clinical remission MAINTENANCE: To evaluate the efficacy of a maintenance regimen of icotrokinra versus placebo in achieving clinical remission in participants with moderately to severely active UC who were induced into clinical response with icotrokinra