Journal : J Med Chem
Title : Discovery of a Parenteral Small Molecule Coagulation Factor XIa Inhibitor Clinical Candidate (BMS-962212).
Year : 2017
Volume : 60
Issue : 23
First Page : 9703
Last Page : 9723
Authors : Pinto DJP, Orwat MJ, Smith LM, Quan ML, Lam PYS, Rossi KA, Apedo A, Bozarth JM, Wu Y, Zheng JJ, Xin B, Toussaint N, Stetsko P, Gudmundsson O, Maxwell B, Crain EJ, Wong PC, Lou Z, Harper TW, Chacko SA, Myers JE, Sheriff S, Zhang H, Hou X, Mathur A, Seiffert DA, Wexler RR, Luettgen JM, Ewing WR.
Abstract : Factor XIa (FXIa) is a blood coagulation enzyme that is involved in the amplification of thrombin generation. Mounting evidence suggests that direct inhibition of FXIa can block pathologic thrombus formation while preserving normal hemostasis. Preclinical studies using a variety of approaches to reduce FXIa activity, including direct inhibitors of FXIa, have demonstrated good antithrombotic efficacy without increasing bleeding. On the basis of this potential, we targeted our efforts at identifying potent inhibitors of FXIa with a focus on discovering an acute antithrombotic agent for use in a hospital setting. Herein we describe the discovery of a potent FXIa clinical candidate, 55 (FXIa Ki = 0.7 nM), with excellent preclinical efficacy in thrombosis models and aqueous solubility suitable for intravenous administration. BMS-962212 is a reversible, direct, and highly selective small molecule inhibitor of FXIa.
