Assessment of pharmacokinetics and tolerability following single‐dose administration of molnupiravir in participants with hepatic or renal impairment

Abstract Individuals with chronic liver or kidney disease are at increased risk of severe COVID‐19. Molnupiravir is an orally administered antiviral authorized for the treatment of mild‐to‐moderate COVID‐19 in adults at risk of progression to severe disease. Two nonrandomized, open‐label, single‐dos...

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Main Authors: Kelly E. Duncan, Russ P. Carstens, Kristin L. Butterfield, Yoon Jin, Laura R. Inbody, Andrea K. Schaeffer, Catherine Z. Matthews, Tian Zhao, Shruti Patel, Brian M. Maas, Mickie H. Cheng, S. Aubrey Stoch
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:Clinical and Translational Science
Online Access:https://doi.org/10.1111/cts.70073
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author Kelly E. Duncan
Russ P. Carstens
Kristin L. Butterfield
Yoon Jin
Laura R. Inbody
Andrea K. Schaeffer
Catherine Z. Matthews
Tian Zhao
Shruti Patel
Brian M. Maas
Mickie H. Cheng
S. Aubrey Stoch
author_facet Kelly E. Duncan
Russ P. Carstens
Kristin L. Butterfield
Yoon Jin
Laura R. Inbody
Andrea K. Schaeffer
Catherine Z. Matthews
Tian Zhao
Shruti Patel
Brian M. Maas
Mickie H. Cheng
S. Aubrey Stoch
author_sort Kelly E. Duncan
collection DOAJ
description Abstract Individuals with chronic liver or kidney disease are at increased risk of severe COVID‐19. Molnupiravir is an orally administered antiviral authorized for the treatment of mild‐to‐moderate COVID‐19 in adults at risk of progression to severe disease. Two nonrandomized, open‐label, single‐dose, multicenter, phase 1 trials were conducted to investigate the effects of hepatic and renal impairment on the tolerability and pharmacokinetics of molnupiravir (800 mg) and its metabolite β‐D‐N4‐hydroxycytidine (NHC; NCT05386589/NCT05386758). The impact of renal impairment on urinary excretion of NHC was also assessed. The 90% CI for the geometric mean ratio of the plasma NHC area under the concentration–time curve (AUC) from zero to infinity was <2.0 for participants with moderate hepatic or severe renal impairment versus healthy mean‐matched controls. Comparable geometric mean values were observed for other pharmacokinetic parameters—including AUC from 0 to 12 h, AUC from zero to the last measurable concentration, and peak plasma concentration—in participants with moderate hepatic or severe renal impairment and in healthy mean‐matched controls. Urinary excretion of NHC was low in healthy participants and participants with severe renal impairment; renal clearance was numerically lower in those with renal impairment. In both trials, all adverse events were of mild or moderate intensity and resolved by study completion. There were no clinically relevant treatment‐related effects on other safety evaluations. Overall, molnupiravir was generally well‐tolerated, with similar pharmacokinetic profiles in participants with hepatic or renal impairment and healthy participants, supporting its use for treating COVID‐19 in these individuals without the need for dose adjustment.
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spelling doaj-art-81d7941e3c1f4f6fbd3206ef7eaf50612024-12-24T15:26:30ZengWileyClinical and Translational Science1752-80541752-80622024-12-011712n/an/a10.1111/cts.70073Assessment of pharmacokinetics and tolerability following single‐dose administration of molnupiravir in participants with hepatic or renal impairmentKelly E. Duncan0Russ P. Carstens1Kristin L. Butterfield2Yoon Jin3Laura R. Inbody4Andrea K. Schaeffer5Catherine Z. Matthews6Tian Zhao7Shruti Patel8Brian M. Maas9Mickie H. Cheng10S. Aubrey Stoch11Merck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAMerck & Co., Inc. Rahway New Jersey USAAbstract Individuals with chronic liver or kidney disease are at increased risk of severe COVID‐19. Molnupiravir is an orally administered antiviral authorized for the treatment of mild‐to‐moderate COVID‐19 in adults at risk of progression to severe disease. Two nonrandomized, open‐label, single‐dose, multicenter, phase 1 trials were conducted to investigate the effects of hepatic and renal impairment on the tolerability and pharmacokinetics of molnupiravir (800 mg) and its metabolite β‐D‐N4‐hydroxycytidine (NHC; NCT05386589/NCT05386758). The impact of renal impairment on urinary excretion of NHC was also assessed. The 90% CI for the geometric mean ratio of the plasma NHC area under the concentration–time curve (AUC) from zero to infinity was <2.0 for participants with moderate hepatic or severe renal impairment versus healthy mean‐matched controls. Comparable geometric mean values were observed for other pharmacokinetic parameters—including AUC from 0 to 12 h, AUC from zero to the last measurable concentration, and peak plasma concentration—in participants with moderate hepatic or severe renal impairment and in healthy mean‐matched controls. Urinary excretion of NHC was low in healthy participants and participants with severe renal impairment; renal clearance was numerically lower in those with renal impairment. In both trials, all adverse events were of mild or moderate intensity and resolved by study completion. There were no clinically relevant treatment‐related effects on other safety evaluations. Overall, molnupiravir was generally well‐tolerated, with similar pharmacokinetic profiles in participants with hepatic or renal impairment and healthy participants, supporting its use for treating COVID‐19 in these individuals without the need for dose adjustment.https://doi.org/10.1111/cts.70073
spellingShingle Kelly E. Duncan
Russ P. Carstens
Kristin L. Butterfield
Yoon Jin
Laura R. Inbody
Andrea K. Schaeffer
Catherine Z. Matthews
Tian Zhao
Shruti Patel
Brian M. Maas
Mickie H. Cheng
S. Aubrey Stoch
Assessment of pharmacokinetics and tolerability following single‐dose administration of molnupiravir in participants with hepatic or renal impairment
Clinical and Translational Science
title Assessment of pharmacokinetics and tolerability following single‐dose administration of molnupiravir in participants with hepatic or renal impairment
title_full Assessment of pharmacokinetics and tolerability following single‐dose administration of molnupiravir in participants with hepatic or renal impairment
title_fullStr Assessment of pharmacokinetics and tolerability following single‐dose administration of molnupiravir in participants with hepatic or renal impairment
title_full_unstemmed Assessment of pharmacokinetics and tolerability following single‐dose administration of molnupiravir in participants with hepatic or renal impairment
title_short Assessment of pharmacokinetics and tolerability following single‐dose administration of molnupiravir in participants with hepatic or renal impairment
title_sort assessment of pharmacokinetics and tolerability following single dose administration of molnupiravir in participants with hepatic or renal impairment
url https://doi.org/10.1111/cts.70073
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