Live feed07:30:00·1100dPRReleasevia QuantisnowCytokinetics Announces Start of MAPLE-HCM, a Phase 3 Clinical Trial of Aficamten Compared to Metoprolol in Patients With Symptomatic Obstructive Hypertrophic CardiomyopathyByQuantisnow·Wall Street's wire, on your screen.CYTK· Cytokinetics IncorporatedHealth Care