Abstract
Background
Remdesivir is an antiviral approved by the US Food and Drug Administration (FDA) for treatment of coronavirus disease 2019 (COVID-19), and aminotransferase elevation is commonly reported. Thresholds to be considered for discontinuation due to alanine aminotransferase (ALT) elevation differ between the FDA and European Medicines Agency (EMA). The primary objective was to describe aminotransferase thresholds being used in real-world practice for discontinuation of remdesivir in patients with COVID-19, and compare them with labeled recommendations.
Methods
This study used a descriptive design based on an ongoing national registry of adverse events, the FDA ACMT COVID-19 ToxIC (FACT) pharmacovigilance project, with 17 participating health systems in the USA. Cases were identified retrospectively for an 18-month period (23 November 2020–18 May 2022). Classification of discontinuation as premature and due to aminotransferases was based on chart documentation by the treating team.
Results
Of 1026 cases in the FACT registry, 116 cases were included with supplemental data forms completed for aminotransferase elevation with remdesivir, defined a priori for inclusion as ALT doubling or increasing by ≥ 50 U/L. ALT was elevated prior to remdesivir in 47% and increased above baseline during dosing by a median of 92 U/L [interquartile range (IQR) 51–164, max 8350]. Remdesivir was discontinued early in 37 (31.9%) patients due to elevated aminotransferases. The ALT threshold for premature discontinuation was median 200 U/L (IQR 145–396, range 92–5743). Among patients with premature discontinuation of remdesivir for aminotransferase elevation, only 21.6% met FDA criteria to consider discontinuation, and 40.5% met prior EMA criteria to consider discontinuation.
Conclusion
In this descriptive study of real-world practice in the USA, clinicians are overall making more conservative treatment decisions than are recommended for consideration in approved drug labeling of discontinuation, with wide variation in the aminotransferase thresholds being used.
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Acknowledgements
We would like to acknowledge the FDA American College of Medical Toxicology (ACMT) COVID-19 Toxicology Investigators Consortium (ToxIC) (FACT) Study Group: Maryann Amirshahi, Katie Boyle, Jennifer Carey, Michael Chary, Jason Devgun, Kennon Heard, Robert Hendrickson, Ziad Kazzi, Eric Lavonas, Michael Brett Marlin, Travis Olives, Anthony Pizon, Tony Rianprakaisang, Kapil Sharma, Sophia Sheikh, Meghan Spyres, and Timothy Wiegand.
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This study was supported by the US Food and Drug Administration (FDA), contract 75F40119D10031. This publication reflects the views of the authors and should not be construed to represent FDA’s views or policies.
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The authors have no competing interests to declare that are relevant to the content of this article.
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The datasets analyzed during the current study are available from the corresponding author on reasonable request.
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This project was deemed non-human subjects research by the Western Institutional Review Board (WIRB)-Copernicus Group Institutional Review Board (IRB) and exempted or approved by institutional IRBs at participating sites.
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JS conceptualized the study, cleaned and analyzed the data, and drafted and revised the paper. LCE drafted and revised the paper. KA, PW, KB, and J Brent designed and implemented the registry database, and revised the paper. J Buchanan contributed to the registry and revised the paper. ML contributed to the registry and revised the paper.
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Schimmel, J., Epperson, L.C., Aldy, K. et al. Remdesivir Discontinuation Decisions Based on Thresholds of Aminotransferase in an Observational Registry. Drugs 84, 209–217 (2024). https://doi.org/10.1007/s40265-023-01981-7
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DOI: https://doi.org/10.1007/s40265-023-01981-7