PF-6274484 is a potent EGFR inhibitor with Kis of 0.14 nM and 0.18 nM for EGFR-L858R/T790M and WT EGFR, respectively. PF-6274484 inhibits EGFR-L858R/T790M autophosphorylation in H1975 tumor cells and EGFR WT in A549 tumor cells with IC50s of 6.6 and 5.8 nM, respectively.
