MyoKardia, Inc., a clinical stage biopharmaceutical company, discovers, develops, and commercializes targeted therapies for the treatment of serious and neglected rare cardiovascular diseases. Its lead product candidate is mavacamten, an orally administered small molecule, which is in Phase III clinical trial that is designed to reduce left ventricular contractility to alleviate the functional consequences and symptoms of obstructive hypertrophic cardiomyopathy (HCM) and prevent or reverse HCM progression, as well as in Phase II clinical trial for non-obstructive HCM.