Ofev Drug Interactions

P-glycoprotein (P-gp): Nintedanib is a substrate of P-gp (see Pharmacology: Pharmacokinetics under Actions). Co-administration with the potent P-gp inhibitor ketoconazole increased exposure to nintedanib 1.61-fold based on AUC and 1.83-fold based on C_max in a dedicated drug-drug interaction study.
In a drug-drug interaction study with the potent P-gp inducer rifampicin, exposure to nintedanib decreased to 50.3 % based on AUC and to 60.3 % based on C_max upon co-administration with rifampicin compared to administration of nintedanib alone.
If co-administered with Ofev, potent P-gp inhibitors (e.g. ketoconazole or erythromycin) may increase exposure to nintedanib. In such cases, patients should be monitored closely for tolerability of nintedanib. Management of side effects may require interruption, dose reduction, or discontinuation of therapy with Ofev (see Dosage & Administration).
Potent P-gp inducers (e.g. rifampicin, carbamazepine, phenytoin, and St. John's Wort) may decrease exposure to nintedanib. Selection of an alternate concomitant medication with no or minimal P-gp induction potential should be considered.
Food: Ofev is recommended to be taken with food (see Pharmacology: Pharmacokinetics under Actions).
Cytochrome (CYP)-enzymes: Only a minor extent of the biotransformation of nintedanib consisted of CYP pathways. Nintedanib and its metabolites, the free acid moiety BIBF 1202 and its glucuronide BIBF 1202 glucuronide, did not jnhibit or induce CYP enzymes in preclinical studies (see Pharmacology: Pharmacokinetics under Actions). The likelihood of drug-drug interactions with nintedanib based on CYP metabolism is therefore considered to be low.
Co-administration with other drugs: The potential for interactions of nintedanib with hormonal contraceptives was not explored.