RecruitingDrug trialEffectiveness and Treatment Patterns of Mavacamten in Patients With Obstructive Hypertrophic Cardiomyopathy in Japan (MANAGE-HCM)The purpose of this study is to assess the real-world effectiveness and safety of mavacamten in adults diagnosed with symptomatic obstructive hypertrophic cardiomyopathy (HOCM) receiving cibenzoline in Japan