JNJ-38877618 is a potent, highly selective, orally bioavailable Met kinase inhibitor with IC50s of 2 and 3 nM for wild type and mutant Met, respectively.

OMO-1 (formerly JNJ-38877618), is a potent, highly selective, orally bioavailable Met kinase inhibitor with nM binding affinity (Kd=1.4 nM) and enzyme inhibitory activity against wt and M1268T mutant Met (2 and 3 nM IC50). Met inhibitory effects are assessed in proliferation, colony formation and motility assays. JNJ-38877618 displays nM potency against Met Ampl/mutant and therapy resistant models[1].

JNJ-38877618 induces complete inhibition of tumor growth in 3 models: the SNU5 Met amp gastric, U87-MG HGF autocrine glioblastoma and Hs746T Met exon 14 skipping mutant gastric cancer. JNJ-38877618 induces regression of large Met amplified EBC-1 SqNSCLC where JNJ-38877618 leads to dose- and time-dependent inhibition of Met kinase activation, with the duration of target shut down considerably exceeding plasma exposure times. Combination treatments are well tolerated and improved EGFR targeted therapy[1].

[1]. Libouban M, et al. OMO-1, a potent, highly selective, orally bioavailable, Met kinase inhibitor with a favorable preclinical toxicity profile, shows both monotherapy activity, against Met pathway-driven tumors, and EGFR TKI combination activity in acquired resistance models [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 4791.