Live feed07:00:00·1354dPRReleasevia QuantisnowBlueprint Medicines Announces Positive Top-line Results from PIONEER Trial of AYVAKIT® (avapritinib) in Patients with Non-Advanced Systemic Mastocytosis Achieving Primary and All Key Secondary EndpointsByQuantisnow·Wall Street's wire, on your screen.BPMC· Blueprint Medicines CorporationHealth Care