Human CRC, NSCLC and pancreatic ex vivo preclinical models with G12C, G12D, and G12V KRAS mutations were all sensitive to BMF-219 after a 6-day treatment….Complete abrogation of growth was observed in all samples with IC50 values ranging between 0.2 μM - 0.6 μM....High potency of BMF-219 was observed amongst various KRAS-mutant cell lines suggesting that BMF-219 broadly inhibits these tumors.