Blueprint Medicines Corporation, a precision therapy company, develops drugs of small molecule kinase inhibitors that target genomic drivers in genomically defined cancers, rare diseases, and cancer immunotherapy. The company is developing avapritinib for the treatment of systemic mastocytosis (SM) and gastrointestinal stromal tumors; BLU-263, an orally available, potent, and KIT inhibitor for the treatment of indolent SM and other mast cell disorders; and fisogatinib, an orally available and potent inhibitor, which is in Phase I clinical trials for the treatment of advanced hepatocellular carcinoma. It is also developing pralsetinib, an orally available and potent inhibitor that targets RET, a receptor tyrosine kinase for the treatment of RET-altered non-small cell lung cancer, medullary thyroid carcinoma, and other solid tumors. In addition, the company is developing BLU-782, an oral and investigational activin-like kinase 2 inhibitor, which is in Phase I clinical trials for the treatment of fibrodysplasia ossificans progressive. It has collaboration and license agreements with Clementia Pharmaceuticals, Inc.; CStone Pharmaceuticals; Genentech, Inc.; and F. Hoffmann-La Roche Ltd and Hoffmann-La Roche Inc. The company was formerly known as Hoyle Pharmaceuticals, Inc. and changed its name to Blueprint Medicines Corporation in June 2011. Blueprint Medicines Corporation was founded in 2008 and is headquartered in Cambridge, Massachusetts.