BI-4020 is a fourth-generation, orally active, and non-covalent inhibitor of EGFR tyrosine kinase. BI-4020 exhibits activity agains the triple mutant EGFR del19 T790M C797S variant (IC50=0.2 nM in BaF3 cell lines), the double mutant EGFR del19 T790M and primary mutant EGFR del19 (IC50=1 nM) and EGFR wt (IC50=190 nM). BI-4020 exhibits high kinome selectivity and good DMPK properties.

98%

Store at -20℃ for one year（Powder）；Store at 2-4℃ for two weeks；Store at -20℃ for six months after dissolution.

DMSO:240 mg/mL (442.25 mM)

EGFRWT:190 nM, EGFRdel19 T790M C797S:0.2 nM, EGFRdel19:1 nM

BI-4020 inhibits p-EGFR del19 T790M C797S ( IC50: 0.6 nM). BI-4020 inhibits not only the triple mutant EGFR (del19/T790M/C797S) variant (IC50=0.2 nM in BaF3 cell lines) but also the double mutant EGFR (del19/T790M) and primary mutant EGFR del19 (IC50: 1 nM). BI-4020 also shows activity against EGFR wt (IC50: 190 nM). BI-4020 shows high kinome selectivity and good DMPK properties.

In the human PC-9 (EGFR del19/T790M/C797S) triple mutant NSCLC xenograft model in mice, BI-4020 leads to tumor regressions.