XL647

Tesevatinib is a member of the class of quinazolines that is quinazoline substituted by (3,4-dichloro-2-fluorophenyl)amino, methoxy, and [(3aR,5r,6aS)-2-methyloctahydrocyclopenta[c]pyrrol-5-yl]methoxy groups at positions 4, 6 and 7, respectively. It is a multi-target tyrosine kinase inhibitor of EGFR, ErbB2, KDR, Flt4 and EphB4 and exhibits anti-cancer properties. It has a role as an antineoplastic agent, an EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor and an epidermal growth factor receptor antagonist. It is a member of quinazolines, an aromatic ether, a member of monofluorobenzenes, a dichlorobenzene, a secondary amino compound, a diether and a tertiary amino compound.|Tesevatinib has been used in trials studying the treatment of Cancer, Stomach Cancer, Brain Metastases, Esophageal Cancer, and Leptomeningeal Metastases, among others. Tesevatinib is a potent inhibitor of multiple RTKs implicated in driving tumor cell proliferation and tumor vascularization (blood vessel formation). Tesevatinib inhibits the EGF, HER2, and VEGF RTKs, each of which is a target of currently approved cancer therapies. In addition, tesevatinib inhibits EphB4, an RTK that is highly expressed in many human tumors and plays a role in promoting angiogenesis. In a broad array of preclinical tumor models including breast, lung, colon and prostate cancer, XL647 demonstrated potent inhibition of tumor growth and causes tumor regression. In cell culture models, tesevatinib retains significant potency against mutant EGFRs that are resistant to current EGFR inhibitors.|Tesevatinib is an orally bioavailable small-molecule receptor tyrosine kinase (RTK) inhibitor with potential antineoplastic activity. Tesevatinib binds to and inhibits several tyrosine receptor kinases that play major roles in tumor cell proliferation and tumor vascularization, including epidermal growth factor receptor (EGFR; ERBB1), epidermal growth factor receptor 2 (HER2; ERBB2), vascular endothelial growth factor receptor (VEGFR), and ephrin B4 (EphB4). This may result in the inhibition of tumor growth and angiogenesis, and tumor regression.

XL 647 is a potent and selective EGFR phosphorylation inhibitor and may be used in the treatment of patients suffering from lung cancer. Orally available, multi-target tyrosine kinase inhibitor.