MRTX1133 is a highly selective, first-in-class inhibitor of KRASG12D. MRTX1133 targets the KRASG12D protein in both active and inactive states. MRTX1133 selectively inhibits KRASG12D mutant, but not KRAS wild-type, tumor cells[1][2]. MRTX1133 demonstrates dose-dependent inhibition of the KRAS pathway tumor regression in G12D mutant tumor models[2]. [1]. Xiaolun Wang, et al.Krasg12dinhibitors.WO2021041671A1.[2]. KRASG12DInhibitor: MRTX1133. [(accessed on 22 April 2021)];2021 Available online.