BLU-285 CAS: 1703793-34-3

BLU-285(cas 1703793-34-3)

is a potent and selective inhibitor of PDGFRα D842V and KIT Exon 17 mutants and is being developed as a highly targeted therapy for SM, a disorder of the mast cells in which a KIT Exon 17 mutation is the primary driver of disease. BLU-285 has demonstrated biochemical in vitro activity on the KIT exon 17 mutant enzyme, KIT D816V (half-maximal inhibitory concentration [IC50] = 0.27 nM). In vivo BLU-285 was well tolerated and has demonstrated dose dependent antitumor efficacy. Complete tumor growth inhibition and ≥ 75% KIT kinase inhibition was observed with 10 mg/kg once daily, oral dosing of BLU-285 in the aggressive KIT exon 17 mutant driven P815 mastocytoma model grown as a solid tumor allograft as well as in a disseminated model of disease. BLU-285 is currently in Phase I clinical study.