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Drug interactions

Epcoritamab + Pirfenidone

Severity: Moderate

Epcoritamab and Pirfenidone: 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

Epcoritamab triggers cytokine release, which can temporarily suppress CYP450 enzyme activity. Pirfenidone is cleared mainly by CYP1A2, so its exposure may rise during cytokine release, increasing the risk of nausea, photosensitivity and liver enzyme elevations.

What this interaction means in plain words

Epcoritamab and Pirfenidone 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.

Epcoritamab belongs to Oncology; Pirfenidone belongs to Miscellaneous.

Evidence level: Low

Why it happens

Cytokine-mediated downregulation of CYP1A2 reduces pirfenidone metabolism and raises its concentrations.

What to do

Monitor for pirfenidone adverse effects and liver enzymes during epcoritamab step-up dosing and any cytokine release syndrome episode. Reduce or interrupt pirfenidone if tolerability worsens.

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 Epcoritamab with Pirfenidone?

MediHelp rates the interaction as moderate. Epcoritamab and Pirfenidone 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. Epcoritamab triggers cytokine release, which can temporarily suppress CYP450 enzyme activity. Pirfenidone is cleared mainly by CYP1A2, so its exposure may rise during cytokine release, increasing the risk of nausea, photosensitivity and liver enzyme elevations.

How serious is the interaction between Epcoritamab and Pirfenidone?

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 for pirfenidone adverse effects and liver enzymes during epcoritamab step-up dosing and any cytokine release syndrome episode. Reduce or interrupt pirfenidone if tolerability worsens.

What other medicines interact with Pirfenidone?

MediHelp also lists interactions of Pirfenidone with, for example, Carbamazepine, Ciprofloxacin, Fluvoxamine. The full list is on the Pirfenidone page.

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