RecruitingPhase 3Drug trialEfficacy and Safety of Switching From Anti-C5 Antibody Treatment to Iptacopan Treatment in Study Participants With Atypical Hemolytic Uremic Syndrome (aHUS)The purpose of this Phase 3 study is to evaluate the efficacy and safety of iptacopan upon switching from anti-C5 antibody to iptacopan treatment in study participants with aHUS.