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Drug Interactions between polatuzumab vedotin and telaprevir

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Major

telaprevir polatuzumab vedotin

Applies to: telaprevir and polatuzumab vedotin

MONITOR CLOSELY: Coadministration with potent inhibitors of CYP450 3A4 may increase exposure to unconjugated monomethyl auristatin E (MMAE), the anti-mitotic and cytotoxic component of polatuzumab vedotin. Polatuzumab vedotin is an antibody-drug conjugate (ADC) that releases MMAE via proteolytic cleavage, and MMAE has been shown in vitro to be primarily metabolized by CYP450 3A4. Concomitant use of polatuzumab vedotin with ketoconazole, a potent CYP450 3A4 inhibitor, is predicted to increase unconjugated MMAE exposure (AUC) by 45% according to the product labeling. The risk and/or severity of toxicities of polatuzumab vedotin may increase.

MANAGEMENT: Caution is advised when polatuzumab vedotin is used concomitantly with potent CYP450 3A4 inhibitors. Patients should be closely monitored for development or exacerbation of toxicities such as peripheral neuropathy, myelosuppression, opportunistic infections, tumor lysis syndrome and hepatotoxicity, and the dosing of polatuzumab vedotin adjusted or withheld as necessary in accordance with the product labeling.

References (1)
  1. (2019) "Product Information. Polivy (polatuzumab vedotin)." Genentech

Drug and food interactions

Moderate

telaprevir food

Applies to: telaprevir

ADJUST DOSING INTERVAL: Food significantly enhances the oral bioavailability of telaprevir. When given with a meal containing 533 kcal and 21 g fat, telaprevir systemic exposure (AUC) increased by 237% compared to administration under fasting conditions. The type of meal also affects the exposure to telaprevir. Relative to fasting, telaprevir AUC increased by approximately 117% with a low-fat meal (249 kcal; 3.6 g fat) and 330% with a high-fat meal (928 kcal; 56 g fat). In Phase 3 clinical trials, telaprevir doses were administered within 30 minutes of completing a meal or snack containing approximately 20 grams of fat.

MANAGEMENT: Telaprevir should be administered with food containing approximately 20 grams of fat. Patients should be advised that the fat content of the meal or snack is critical to the absorption of telaprevir. Food taken with telaprevir should be ingested within 30 minutes prior to each dose. Examples of some foods that could be taken with telaprevir include: bagel with cream cheese; half cup of nuts; 3 tablespoons of peanut butter; 1 cup of ice cream; 2 ounces of American or cheddar cheese; 2 ounces of potato chips; or half cup of trail mix.

References (1)
  1. (2011) "Product Information. Incivek (telaprevir)." Vertex Pharmaceuticals

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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