RecruitingPhase 4Drug trialMavacamten to Aficamten Transition in Patients With Obstructive Hypertrophic CardiomyopathyThis is an investigator-initiated two-center study. The goal of this study is to investigate the feasibility, safety and efficacy outcomes of a seamless transition from mavacamten to aficamten in patients with obstructive hypertrophic cardiomyopathy (oHCM).