Drug interactions
Ciltacabtagene autoleucel + Rituximab
Severity: Moderate
Ciltacabtagene autoleucel and Rituximab: moderate 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
Rituximab causes B-cell depletion and adds to the cytopenias, hypogammaglobulinemia and infection risk that follow ciltacabtagene autoleucel. The combined immune compromise can be prolonged.
What this interaction means in plain words
Ciltacabtagene autoleucel and Rituximab can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Ciltacabtagene autoleucel belongs to Miscellaneous; Rituximab belongs to Musculoskeletal.
Why it happens
Additive immunosuppression from B-cell depletion on top of CAR T-related cytopenias and hypogammaglobulinemia.
What to do
Monitor blood counts, immunoglobulin levels and signs of infection, with antimicrobial prophylaxis and immunoglobulin replacement as indicated. Avoid unnecessary additional immunosuppressants.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Rituximab
Other interactions of Ciltacabtagene autoleucel
Frequently asked questions
Can I take Ciltacabtagene autoleucel with Rituximab?
MediHelp rates the interaction as moderate. Ciltacabtagene autoleucel and Rituximab can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Rituximab causes B-cell depletion and adds to the cytopenias, hypogammaglobulinemia and infection risk that follow ciltacabtagene autoleucel. The combined immune compromise can be prolonged.
How serious is the interaction between Ciltacabtagene autoleucel and Rituximab?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood counts, immunoglobulin levels and signs of infection, with antimicrobial prophylaxis and immunoglobulin replacement as indicated. Avoid unnecessary additional immunosuppressants.
What other medicines interact with Rituximab?
MediHelp also lists interactions of Rituximab with, for example, Adenovirus types 4 and 7 live, Baricitinib, Certolizumab pegol. The full list is on the Rituximab page.
Full monographs, dosing and an interaction checker in the MediHelp app
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