Cogent Biosciences, Inc. is a biotechnology company focused on developing precision therapies for genetically defined diseases. Cogent's most advanced program, PLX9486, is a highly selective tyrosine kinase inhibitor that is designed to potently inhibit the KIT D816V mutation as well as other mutations in KIT exon 17. KIT D816V is responsible for driving a rare and serious condition called Systemic Mastocytosis, and exon 17 mutations are also found in patients with advanced gastrointestinal stromal tumors (GIST), a type of cancer with strong dependence on oncogenic KIT signaling. Cogent is headquartered in Cambridge, MA.