Discovery of a Novel Inhibitor of Coronavirus 3CL Protease for the Potential Treatment of COVID-19

Author:

Boras BrittonORCID,Jones Rhys M.ORCID,Anson Brandon J.ORCID,Arenson Dan,Aschenbrenner Lisa,Bakowski Malina A.ORCID,Beutler NathanORCID,Binder Joseph,Chen Emily,Eng HeatherORCID,Hammond Holly,Hammond Jennifer,Haupt Robert E.,Hoffman RobertORCID,Kadar Eugene P.,Kania Rob,Kimoto EmiORCID,Kirkpatrick Melanie G.,Lanyon Lorraine,Lendy Emma K.ORCID,Lillis Jonathan R.,Logue James,Luthra Suman A.,Ma ChunlongORCID,Mason Stephen W.,McGrath Marisa E.,Noell Stephen,Obach R. ScottORCID,O’Brien Matthew N.ORCID,O’Connor Rebecca,Ogilvie Kevin,Owen DafyddORCID,Pettersson Martin,Reese Matthew R,Rogers Thomas F.,Rossulek Michelle I.,Sathish Jean G.,Shirai Norimitsu,Steppan ClaireORCID,Ticehurst Martyn,Updyke Lawrence W.,Weston Stuart,Zhu Yuao,Wang JunORCID,Chatterjee Arnab K.ORCID,Mesecar Andrew D.ORCID,Frieman Matthew B.,Anderson Annaliesa S.ORCID,Allerton Charlotte

Abstract

AbstractCOVID-19 caused by the SARS-CoV-2 virus has become a global pandemic. 3CL protease is a virally encoded protein that is essential across a broad spectrum of coronaviruses with no close human analogs. The designed phosphate prodrug PF-07304814 is metabolized to PF-00835321 which is a potent inhibitor in vitro of the coronavirus family 3CL pro, with selectivity over human host protease targets. Furthermore, PF-00835231 exhibits potent in vitro antiviral activity against SARS-CoV-2 as a single agent and it is additive/synergistic in combination with remdesivir. We present the ADME, safety, in vitro, and in vivo antiviral activity data that supports the clinical evaluation of this compound as a potential COVID-19 treatment.

Publisher

Cold Spring Harbor Laboratory

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