Reference Detail

Ref Type

Journal Article

PMID

(23275061)

Authors

Yan SB, Peek VL, Ajamie R, Buchanan SG, Graff JR, Heidler SA, Hui YH, Huss KL, Konicek BW, Manro JR, Shih C, Stewart JA, Stewart TR, Stout SL, Uhlik MT, Um SL, Wang Y, Wu W, Yan L, Yang WJ, Zhong B, Walgren RA

Title

LY2801653 is an orally bioavailable multi-kinase inhibitor with potent activity against MET, MST1R, and other oncoproteins, and displays anti-tumor activities in mouse xenograft models.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Investigational new drugs	31	4	2013 Aug	833-44	Invest New Drugs

URL

Abstract Text

The HGF/MET signaling pathway regulates a wide variety of normal cellular functions that can be subverted to support neoplasia, including cell proliferation, survival, apoptosis, scattering and motility, invasion, and angiogenesis. MET over-expression (with or without gene amplification), aberrant autocrine or paracrine ligand production, and missense MET mutations are mechanisms that lead to activation of the MET pathway in tumors and are associated with poor prognostic outcome. We report here preclinical development of a potent, orally bioavailable, small-molecule inhibitor LY2801653 targeting MET kinase. LY2801653 is a type-II ATP competitive, slow-off inhibitor of MET tyrosine kinase with a dissociation constant (Ki) of 2 nM, a pharmacodynamic residence time (Koff) of 0.00132 min(-1) and t1/2 of 525 min. LY2801653 demonstrated in vitro effects on MET pathway-dependent cell scattering and cell proliferation; in vivo anti-tumor effects in MET amplified (MKN45), MET autocrine (U-87MG, and KP4) and MET over-expressed (H441) xenograft models; and in vivo vessel normalization effects. LY2801653 also maintained potency against 13 MET variants, each bearing a single-point mutation. In subsequent nonclinical characterization, LY2801653 was found to have potent activity against several other receptor tyrosine oncokinases including MST1R, FLT3, AXL, MERTK, TEK, ROS1, DDR1/2 and against the serine/threonine kinases MKNK1/2. The potential value of MET and other inhibited targets within a number of malignancies (such as colon, bile ducts, and lung) is discussed. LY2801653 is currently in phase 1 clinical testing in patients with advanced cancer (trial I3O-MC-JSBA, NCT01285037).

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Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials
Merestinib	Merestinib	0	4

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description
Merestinib		LY2801653\|LY-2801653	AXL Inhibitor 30 DDR1 Inhibitor 10 DDR2 inhibitor 7 FLT3 Inhibitor 65 MET Inhibitor 59 RON Inhibitor 11 ROS1 Inhibitor 20 Trk Receptor Inhibitor (Pan) 31 TYRO3 Inhibitor 8	Merestinib (LY2801653) inhibits several receptor tyrosine kinases including MET, MST1R (RON), AXL, MERTK, TYRO3, ROS1 fusions, PDGFRA, FLT3, TEK, DDR1/2, MKNK1/2, and NTRK1/2/3 with greatest activity against NTRK1, and may result in decreased tumor growth (PMID: 23275061, PMID: 24305878, PMID: 29568395, PMID: 32537847).

Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References