Drug interactions
Brexucabtagene autoleucel + Sirolimus
Severity: Major
Brexucabtagene autoleucel and Sirolimus: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Sirolimus may impair CAR-T cell expansion and persistence, potentially reducing efficacy, and it adds to infection risk after lymphodepletion.
What this interaction means in plain words
Brexucabtagene autoleucel and Sirolimus can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Brexucabtagene autoleucel belongs to Oncology; Sirolimus belongs to Miscellaneous.
Why it happens
Pharmacodynamic antagonism, as mTOR inhibition suppresses T-cell proliferation needed for CAR-T activity.
What to do
Avoid sirolimus around leukapheresis and infusion unless essential. If it is required, monitor for infection and for loss of CAR-T response.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Sirolimus
- Adenovirus types 4 and 7 live + Sirolimus Contraindicated
- Bcg vaccine live + Sirolimus Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Sirolimus Contraindicated
- Ketoconazole + Sirolimus Contraindicated
- Levoketoconazole + Sirolimus Contraindicated
- Measles mumps and rubella vaccine live + Sirolimus Contraindicated
Other interactions of Brexucabtagene autoleucel
Frequently asked questions
Can I take Brexucabtagene autoleucel with Sirolimus?
MediHelp rates the interaction as major. Brexucabtagene autoleucel and Sirolimus can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Sirolimus may impair CAR-T cell expansion and persistence, potentially reducing efficacy, and it adds to infection risk after lymphodepletion.
How serious is the interaction between Brexucabtagene autoleucel and Sirolimus?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid sirolimus around leukapheresis and infusion unless essential. If it is required, monitor for infection and for loss of CAR-T response.
What other medicines interact with Sirolimus?
MediHelp also lists interactions of Sirolimus with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Influenza virus vaccine quadrivalent intranasal. The full list is on the Sirolimus page.
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