Blueprint Medicines’ Leadership in Driving Continued Innovation in Systemic Mastocytosis Highlighted at 2023 ASH Annual Meeting

— HARBOR Part 1 trial data in indolent systemic mastocytosis showed elenestinib was well-tolerated with broad symptom improvement, supporting further development to expand and extend company’s SM franchise leadership — CAMBRIDGE, Mass., Dec. 9, 2023 /PRNewswire/ — Blueprint Medicines…