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Drug interactions

Glofitamab + Sirolimus

Severity: Moderate

Glofitamab and Sirolimus: 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

Glofitamab induces cytokine release that can temporarily suppress CYP3A activity. Sirolimus concentrations may therefore rise, especially during cytokine release syndrome.

What this interaction means in plain words

Glofitamab and Sirolimus 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.

Glofitamab belongs to Oncology; Sirolimus belongs to Miscellaneous.

Evidence level: Low

Why it happens

Cytokine-mediated suppression of CYP3A4 expression reduces sirolimus clearance.

What to do

Monitor sirolimus trough levels and toxicity during the initial glofitamab cycles and any cytokine release syndrome; reduce the sirolimus dose if levels rise.

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?

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 Glofitamab with Sirolimus?

MediHelp rates the interaction as moderate. Glofitamab and Sirolimus 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. Glofitamab induces cytokine release that can temporarily suppress CYP3A activity. Sirolimus concentrations may therefore rise, especially during cytokine release syndrome.

How serious is the interaction between Glofitamab and Sirolimus?

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 sirolimus trough levels and toxicity during the initial glofitamab cycles and any cytokine release syndrome; reduce the sirolimus dose if levels rise.

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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