Drug interactions
Idecabtagene vicleucel + Lomustine
Severity: Major
Idecabtagene vicleucel and Lomustine: 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
Lomustine is a myelosuppressive alkylating agent. Given around the time of CAR T-cell therapy it may impair T-cell collection, expansion and persistence and adds to cytopenias and infection risk. Chemotherapy is normally timed deliberately as lymphodepletion or bridging rather than given concurrently.
What this interaction means in plain words
Idecabtagene vicleucel and Lomustine 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.
Idecabtagene vicleucel belongs to Oncology; Lomustine belongs to Oncology.
Why it happens
Additive immunosuppression and myelosuppression, with possible cytotoxic effects on CAR T cells.
What to do
Avoid giving lomustine in the period before leukapheresis and after infusion unless it is part of a planned protocol. Monitor blood counts and infections closely if the combination is unavoidable.
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 Lomustine
- Adenovirus types 4 and 7 live + Lomustine Contraindicated
- Bcg vaccine live + Lomustine Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Lomustine Contraindicated
- Lomustine + Measles mumps and rubella vaccine Contraindicated
- Lomustine + Measles mumps and rubella vaccine live Contraindicated
- Lomustine + Measles mumps rubella and varicella vaccine live Contraindicated
Other interactions of Idecabtagene vicleucel
Frequently asked questions
Can I take Idecabtagene vicleucel with Lomustine?
MediHelp rates the interaction as major. Idecabtagene vicleucel and Lomustine 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. Lomustine is a myelosuppressive alkylating agent. Given around the time of CAR T-cell therapy it may impair T-cell collection, expansion and persistence and adds to cytopenias and infection risk. Chemotherapy is normally timed deliberately as lymphodepletion or bridging rather than given concurrently.
How serious is the interaction between Idecabtagene vicleucel and Lomustine?
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 giving lomustine in the period before leukapheresis and after infusion unless it is part of a planned protocol. Monitor blood counts and infections closely if the combination is unavoidable.
What other medicines interact with Lomustine?
MediHelp also lists interactions of Lomustine with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Influenza virus vaccine quadrivalent intranasal. The full list is on the Lomustine page.
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