Drug interactions
Ketoconazole + Tisotumab vedotin
Severity: Moderate
Ketoconazole and Tisotumab vedotin: 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
Ketoconazole may increase exposure to unconjugated MMAE, the cytotoxic payload of tisotumab vedotin, raising the risk of adverse effects such as neuropathy, ocular toxicity and neutropenia.
What this interaction means in plain words
Ketoconazole and Tisotumab vedotin 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.
Ketoconazole belongs to Anti Fungals; Tisotumab vedotin belongs to Oncology.
Why it happens
Strong CYP3A4 inhibition reduces MMAE clearance.
What to do
Monitor closely for adverse reactions during concurrent use, particularly neuropathy and neutropenia.
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 Ketoconazole
- Alfuzosin + Ketoconazole Contraindicated
- Alprazolam + Ketoconazole Contraindicated
- Avanafil + Ketoconazole Contraindicated
- Conivaptan + Ketoconazole Contraindicated
- Dihydroergotamine intranasal + Ketoconazole Contraindicated
- Dihydroergotamine + Ketoconazole Contraindicated
Other interactions of Tisotumab vedotin
- Chloramphenicol + Tisotumab vedotin Moderate
- Clarithromycin + Tisotumab vedotin Moderate
- Itraconazole + Tisotumab vedotin Moderate
- Mifepristone + Tisotumab vedotin Moderate
- Posaconazole + Tisotumab vedotin Moderate
- Tisotumab vedotin + Voriconazole Moderate
Frequently asked questions
Can I take Ketoconazole with Tisotumab vedotin?
MediHelp rates the interaction as moderate. Ketoconazole and Tisotumab vedotin 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. Ketoconazole may increase exposure to unconjugated MMAE, the cytotoxic payload of tisotumab vedotin, raising the risk of adverse effects such as neuropathy, ocular toxicity and neutropenia.
How serious is the interaction between Ketoconazole and Tisotumab vedotin?
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 closely for adverse reactions during concurrent use, particularly neuropathy and neutropenia.
What other medicines interact with Ketoconazole?
MediHelp also lists interactions of Ketoconazole with, for example, Alfuzosin, Alprazolam, Avanafil. The full list is on the Ketoconazole page.
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