Drug interactions
Apalutamide + Cobimetinib
Severity: Major
Apalutamide and Cobimetinib: 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
Apalutamide may substantially reduce cobimetinib exposure, which may compromise antitumor efficacy. Cobimetinib labeling advises avoiding moderate and strong CYP3A inducers.
What this interaction means in plain words
Apalutamide and Cobimetinib 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.
Apalutamide belongs to Endocrine; Cobimetinib belongs to Oncology.
Why it happens
Induction of CYP3A4 increases cobimetinib metabolism.
What to do
Avoid the combination and choose an alternative. If it cannot be avoided, monitor tumor response closely.
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?
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Other interactions of Apalutamide
- Apalutamide + Cabotegravir Contraindicated
- Apalutamide + Cobicistat Contraindicated
- Apalutamide + Doravirine Contraindicated
- Apalutamide + Elbasvir / grazoprevir Contraindicated
- Apalutamide + Ensitrelvir Contraindicated
- Apalutamide + Fostemsavir Contraindicated
Other interactions of Cobimetinib
- Cobimetinib + Efavirenz Contraindicated
- Cobimetinib + Posaconazole Contraindicated
- Amobarbital + Cobimetinib Major
- Aprepitant + Cobimetinib Major
- Bosentan + Cobimetinib Major
- Carbamazepine + Cobimetinib Major
Frequently asked questions
Can I take Apalutamide with Cobimetinib?
MediHelp rates the interaction as major. Apalutamide and Cobimetinib 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. Apalutamide may substantially reduce cobimetinib exposure, which may compromise antitumor efficacy. Cobimetinib labeling advises avoiding moderate and strong CYP3A inducers.
How serious is the interaction between Apalutamide and Cobimetinib?
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 the combination and choose an alternative. If it cannot be avoided, monitor tumor response closely.
What other medicines interact with Apalutamide?
MediHelp also lists interactions of Apalutamide with, for example, Cabotegravir, Cobicistat, Doravirine. The full list is on the Apalutamide page.
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