Yunyan Hu

Icotinib (BPI-2009H), a novel EGFR tyrosine kinase inhibitor, displays potent efficacy in preclinical studies

Icotinib, one of the leading compounds selected from our compound library, was found to be a potent and specific epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) with an IC(50) of 5 nM. When profiled with 88 kinases, Icotinib only showed meaningful inhibitory activity to EGFR and its mutants. Icotinib blocked EGFR-mediated intracellular tyrosine phosphorylation (IC(50)=45 nM) in the human epidermoid carcinoma A431 cell line and inhibits tumor cell proliferation. In vivo studies demonstrated that Icotinib exhibited potent dose-dependent antitumor effects in nude mice carrying a variety of human tumor-derived xenografts. The drug was well tolerated at doses up to 120 mg/kg/day in mice without mortality or significant body weight loss during the treatment. A head to head randomized, double blind phase III trial using Gefitinib as an active control for patients with advanced non-small cell lung cancer (NSCLC) was finished recently (Trial registration ID: NCT01040780). The data shows that Icotinib was non-inferior to Gefitinib in terms of median progression free survival (PFS) and safety superior favor to Icotinib compared to Gefitinib.

Synthesis and biological evaluation of crown ether fused quinazoline analogues as potent EGFR inhibitors.

Crown ether fused anilinoquinazoline analogues were synthesized as novel epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors. Representative compounds showed potent and selective EGFR inhibitory activities in an in vitro EGFR kinase assay and an EGFR-mediated intracellular tyrosine phosphorylation assay. The synthesis and preliminary biological, physical, and pharmacokinetic evaluation of these fused quinazoline compounds is reported.