Discovery of BMS-986251: A Clinically Viable, Potent, and Selective RORγt Inverse Agonist

ACS Med Chem Lett. 2020 Mar 31;11(6):1221-1227. doi: 10.1021/acsmedchemlett.0c00063. eCollection 2020 Jun 11.

Abstract

Novel tricyclic analogues were designed, synthesized, and evaluated as RORγt inverse agonists. Several of these compounds were potent in an IL-17 human whole blood assay and exhibited excellent oral bioavailability in mouse pharmacokinetic studies. This led to the identification of compound 5, which displayed dose-dependent inhibition of IL-17F production in a mouse IL-2/IL-23 stimulated pharmacodynamic model. In addition, compound 5 was studied in mouse acanthosis and imiquimod-induced models of skin inflammation, where it demonstrated robust efficacy comparable to a positive control. As a result of this excellent overall profile, compound 5 (BMS-986251) was selected as a clinically viable developmental candidate.