RecruitingPhase 3Drug trialAn Extension Study to Assess Safety and Efficacy of Remibrutinib in Participants With Moderate to Severe HSThe purpose of this study is to evaluate the long-term safety, tolerability and efficacy of remibrutinib (LOU064) in adult participants with moderate to severe hidradenitis suppurativa (HS) who have completed either of the preceding Phase 3 studies, CLOU064J12301 or CLOU064J12302.