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Allerton CMN, Arcari JT, Aschenbrenner LM, Avery M, Bechle BM, Behzadi MA, Boras B, Buzon LM, Cardin RD, Catlin NR, Carlo AA, Coffman KJ, Dantonio A, Di L, Eng H, Farley KA, Ferre RA, Gernhardt SS, Gibson SA, Greasley SE, Greenfield SR, Hurst BL, Kalgutkar AS, Kimoto E, Lanyon LF, Lovett GH, Lian Y, Liu W, Martínez Alsina LA, Noell S, Obach RS, Owen DR, Patel NC, Rai DK, Reese MR, Rothan HA, Sakata S, Sammons MF, Sathish JG, Sharma R, Steppan CM, Tuttle JB, Verhoest PR, Wei L, Yang Q, Yurgelonis I, Zhu Y. A Second-Generation Oral SARS-CoV-2 Main Protease Inhibitor Clinical Candidate for the Treatment of COVID-19. J Med Chem 2024. [PMID: 38687966 DOI: 10.1021/acs.jmedchem.3c02469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Despite the record-breaking discovery, development and approval of vaccines and antiviral therapeutics such as Paxlovid, coronavirus disease 2019 (COVID-19) remained the fourth leading cause of death in the world and third highest in the United States in 2022. Here, we report the discovery and characterization of PF-07817883, a second-generation, orally bioavailable, SARS-CoV-2 main protease inhibitor with improved metabolic stability versus nirmatrelvir, the antiviral component of the ritonavir-boosted therapy Paxlovid. We demonstrate the in vitro pan-human coronavirus antiviral activity and off-target selectivity profile of PF-07817883. PF-07817883 also demonstrated oral efficacy in a mouse-adapted SARS-CoV-2 model at plasma concentrations equivalent to nirmatrelvir. The preclinical in vivo pharmacokinetics and metabolism studies in human matrices are suggestive of improved oral pharmacokinetics for PF-07817883 in humans, relative to nirmatrelvir. In vitro inhibition/induction studies against major human drug metabolizing enzymes/transporters suggest a low potential for perpetrator drug-drug interactions upon single-agent use of PF-07817883.
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Affiliation(s)
| | - Joel T Arcari
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | | | - Melissa Avery
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Bruce M Bechle
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | | | - Britton Boras
- Pfizer Research & Development, La Jolla, California 92121, United States
| | - Leanne M Buzon
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Rhonda D Cardin
- Pfizer Research & Development, Pearl River, New York 10965, United States
| | - Natasha R Catlin
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Anthony A Carlo
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Karen J Coffman
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Alyssa Dantonio
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Li Di
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Heather Eng
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Kathleen A Farley
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Rose Ann Ferre
- Pfizer Research & Development, La Jolla, California 92121, United States
| | | | - Scott A Gibson
- Institute for Antiviral Research, Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, Utah 84322, United States
| | | | | | - Brett L Hurst
- Institute for Antiviral Research, Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, Utah 84322, United States
| | - Amit S Kalgutkar
- Pfizer Research & Development, Cambridge, Massachusetts 02139, United States
| | - Emi Kimoto
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Lorraine F Lanyon
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Gabrielle H Lovett
- Pfizer Research & Development, Cambridge, Massachusetts 02139, United States
| | - Yajing Lian
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Wei Liu
- Pfizer Research & Development, La Jolla, California 92121, United States
| | | | - Stephen Noell
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - R Scott Obach
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Dafydd R Owen
- Pfizer Research & Development, Cambridge, Massachusetts 02139, United States
| | - Nandini C Patel
- Pfizer Research & Development, Cambridge, Massachusetts 02139, United States
| | - Devendra K Rai
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Matthew R Reese
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Hussin A Rothan
- Pfizer Research & Development, Pearl River, New York 10965, United States
| | - Sylvie Sakata
- Pfizer Research & Development, La Jolla, California 92121, United States
| | - Matthew F Sammons
- Pfizer Research & Development, Cambridge, Massachusetts 02139, United States
| | - Jean G Sathish
- Pfizer Research & Development, Pearl River, New York 10965, United States
| | - Raman Sharma
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Claire M Steppan
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Jamison B Tuttle
- Pfizer Research & Development, Cambridge, Massachusetts 02139, United States
| | - Patrick R Verhoest
- Pfizer Research & Development, Cambridge, Massachusetts 02139, United States
| | - Liuqing Wei
- Pfizer Research & Development, Groton, Connecticut 06340, United States
| | - Qingyi Yang
- Pfizer Research & Development, Cambridge, Massachusetts 02139, United States
| | - Irina Yurgelonis
- Pfizer Research & Development, Pearl River, New York 10965, United States
| | - Yuao Zhu
- Pfizer Research & Development, Pearl River, New York 10965, United States
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