EGFR/HER2 - ErbB4/HER4

Epertinib hydrochloride is a potent, orally active, reversible, and selective tyrosine kinase inhibitor of EGFR, HER2 and HER4, with IC50s of 1.48 nM, 7.15 nM and 2.49 nM, respectively. Epertinib shows potent antitumor activity.