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Drug interactions

Ciltacabtagene autoleucel + Cytarabine

Severity: Major

Ciltacabtagene autoleucel and Cytarabine: 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

Cytarabine causes profound myelosuppression and immunosuppression, which can add to the cytopenias and infection risk after CAR-T therapy. Chemotherapy near the time of infusion may also compromise CAR-T expansion and persistence.

What this interaction means in plain words

Ciltacabtagene autoleucel and Cytarabine 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.

Ciltacabtagene autoleucel belongs to Miscellaneous; Cytarabine belongs to Oncology.

Evidence level: Low

Why it happens

Additive myelosuppressive and immunosuppressive effects, with possible cytotoxic effects on infused T cells.

What to do

Avoid cytarabine around infusion and during the early recovery period unless clearly needed. If given, monitor blood counts and infections closely and use prophylaxis per protocol.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Ciltacabtagene autoleucel with Cytarabine?

MediHelp rates the interaction as major. Ciltacabtagene autoleucel and Cytarabine 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. Cytarabine causes profound myelosuppression and immunosuppression, which can add to the cytopenias and infection risk after CAR-T therapy. Chemotherapy near the time of infusion may also compromise CAR-T expansion and persistence.

How serious is the interaction between Ciltacabtagene autoleucel and Cytarabine?

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 cytarabine around infusion and during the early recovery period unless clearly needed. If given, monitor blood counts and infections closely and use prophylaxis per protocol.

What other medicines interact with Cytarabine?

MediHelp also lists interactions of Cytarabine with, for example, Adenovirus types 4 and 7 live, Axicabtagene ciloleucel, Belatacept. The full list is on the Cytarabine page.

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