The interaction between nirmatrelvir/ritonavir and sirolimus: a case report of a kidney recipient with renal insufficiency and COVID-19.

Publication date: Jan 01, 2025

Nirmatrelvir/ritonavir is a novel drug combination authorized by the US Food and Drug Administration for the treatment of coronavirus disease 2019 (COVID-19). This report describes the case of a patient with a prior history of kidney transplantation who received nirmatrelvir/ritonavir. In this case, sirolimus use was successfully stopped before nirmatrelvir/ritonavir treatment, and the nirmatrelvir/ritonavir trough concentration was determined. During nirmatrelvir/ritonavir treatment, the sirolimus trough concentration remained stable. This case highlights the risk associated with the concomitant administration of sirolimus and nirmatrelvir/ritonavir. Providers should therefore be cautious when prescribing nirmatrelvir/ritonavir to kidney transplant recipients currently receiving sirolimus, with caution exercised based on creatinine clearance.

Concepts Keywords
Coronavirus COVID-19
Food COVID-19
Kidney COVID-19 Drug Treatment
Nirmatrelvir Drug Combinations
Prescribing Drug Combinations
Drug Interactions
drug–drug interaction
Humans
immunosuppression
Immunosuppressive Agents
Immunosuppressive Agents
Kidney Transplantation
kidney transplantation
Male
Middle Aged
Nirmatrelvir/ritonavir
Renal Insufficiency
Ritonavir
Ritonavir
SARS-CoV-2
Sirolimus
Sirolimus
sirolimus

Semantics

Type Source Name
drug DRUGBANK Ritonavir
drug DRUGBANK Sirolimus
disease MESH renal insufficiency
disease MESH COVID-19
disease IDO history
drug DRUGBANK Creatinine
disease MESH Drug Interactions
disease IDO immunosuppression

Original Article

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