ORR was 19% (8/42 pts, all PR; 4 in CRC, 4 in NSCLC) in Arm 1 and 47% (7/15 pts, all PR) in Arm 2; 7 and 3 pts not yet assessed, respectively….MK-1084 as monotherapy and in combination with pembro showed manageable safety and preliminary antitumor activity in pts with previously treated solid malignancies and previously untreated NSCLC whose tumors harbored KRAS G12C mutations.