Haeyoung Zhang, Rita Humeniuk, Sean Regan, Yiannis Koullias, Santosh Davies, Amy John, Gong Shen, Deqing Xiao, Robert H Hyland, Helen Winter, Aryun Kim
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引用次数: 0
Abstract
Background and objective: Remdesivir is a nucleotide analog prodrug approved for the treatment of COVID-19. This study evaluated the pharmacokinetics and safety of remdesivir and its metabolites (GS-704277 and GS-441524) in participants with varying degrees of renal impairment. Results of this phase I study, along with those of a phase III study, contributed to an extension of indication for remdesivir in the USA and Europe for use in patients with COVID-19 with all stages of renal impairment, including those on dialysis, with no dose adjustment.
Methods: This phase I, open-label, parallel-group study enrolled participants who had mild (n = 12), moderate (n = 11), or severe (n = 10) renal impairment or kidney failure (n = 6 with dialysis, n = 4 without dialysis). Healthy matched controls were enrolled as reference. Remdesivir was given as single intravenous doses of 100 mg (mild and moderate renal impairment), 40 mg (severe renal impairment, kidney failure predialysis), and 20 mg (kidney failure postdialysis and without dialysis).
Results: Plasma pharmacokinetics of remdesivir were not affected by mild, moderate, or severe renal impairment or kidney failure. Geometric least squares mean ratios ranged from 0.8 to 1.2 for remdesivir area under the plasma concentration-time curve (AUC). GS-704277 AUC was up to 2.8-fold higher and GS-441524 AUC up to 7.9-fold higher in participants with renal impairment. Adverse events and laboratory abnormalities were consistent with the existing safety profile for remdesivir.
Conclusions: Observed pharmacokinetics for remdesivir and its metabolites in participants with renal impairment aligned with expected changes based on known routes of elimination. Remdesivir was generally safe and well tolerated in participants with renal impairment, and no new safety concerns were identified. These results, along with those from the phase III study in patients with COVID-19 with severely reduced kidney function, support the use of remdesivir in patients with any degree of renal impairment with no dose adjustments.
Trial registration: EudraCT no. 2020-003441-10; 9 July 2020.
期刊介绍：
Clinical Pharmacokinetics promotes the continuing development of clinical pharmacokinetics and pharmacodynamics for the improvement of drug therapy, and for furthering postgraduate education in clinical pharmacology and therapeutics.
Pharmacokinetics, the study of drug disposition in the body, is an integral part of drug development and rational use. Knowledge and application of pharmacokinetic principles leads to accelerated drug development, cost effective drug use and a reduced frequency of adverse effects and drug interactions.
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