EGFR-IN-1 hydrochloride

EGFR-IN-1 hydrochloride is an orally active and irreversible L858R/T790M mutant selective EGFR inhibitor. EGFR-IN-1 hydrochloride potently inhibits Gefitinib-resistant EGFR L858R, T790M with 100-fold selectivity over wild-type EGFR. EGFR-IN-1 hydrochloride displays strong antiproliferative activity against the H1975 cells and the first line mutant HCC827 cells. Antitumor activity[1].

Research Areas >> Cancer

Signaling Pathways >> JAK/STAT Signaling >> EGFR

Signaling Pathways >> Protein Tyrosine Kinase/RTK >> EGFR

EGFRL858R/T790M

EGFR-IN-1 hydrochloride (compound 24) (10 μM; 72 hours) displays strong antiproliferative activity against the H1975 and HCC827 cells with IC50s of 4 and 28 nM, respectively[1]. EGFR-IN-1 hydrochloride inhibits p-EGFR in H1975 and HCC827 cells with IC50s of 4 and 9 nM, respectively. EGFR-IN-1 highly selective against a panel of 100 kinases[1]. Cell Proliferation Assay[1] Cell Line: NSCLC cell lines H1975 (T790M/L858R), HCC827 (∆746-750) Concentration: 10 μM Incubation Time: 72 hours Result: Inhibited H1975 nonsmall cell lung cancer cell line and the first line mutant HCC827 cell line with IC50s of 4 and 28 nM, respectively.

EGFR-IN-1 hydrochloride (30 mg/kg; p.o.; daily for 2 weeks) displays significant tumor growth inhibition with no observed loss in body weight[1]. EGFR-IN-1 hydrochloride evaluates in a time course PD experiment upon oral dosing at 30 mg/kg. EGFR-IN-1 shows a >50% inhibition of phosphorylation of EGFR for >12 h. EGFR-IN-1 reaches maximal concentration of 0.10 μM at 2 h and systemic exposure (AUC0-inf.) is 0.33 μM. h[1]. Animal Model: Female athymic nude mice (H1975 Tumor Xenograft)[1] Dosage: 30 mg/kg Administration: p.o.; daily for 2 weeks Result: Led to significant tumor growth inhibition with no observed loss in body weight.

[1]. Wurz RP, et al. Oxopyrido[2,3-d]pyrimidines as Covalent L858R/T790M Mutant Selective Epidermal Growth Factor Receptor (EGFR) Inhibitors. ACS Med Chem Lett. 2015 Jul 27;6(9):987-92.