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Drug Interactions between brigatinib and sunitinib

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

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Interactions between your drugs

Moderate

SUNItinib brigatinib

Applies to: sunitinib and brigatinib

MONITOR: Coadministration with inducers of CYP450 3A4 may decrease the plasma concentrations of sunitinib and its pharmacologically active metabolite, both of which are substrates of the isoenzyme. In healthy volunteers, administration of a single dose of sunitinib with the potent CYP450 3A4 inducer, rifampin, decreased the combined (i.e., sunitinib plus its primary active metabolite) peak plasma concentration (Cmax) and systemic exposure (AUC) values by 23% and 46%, respectively, compared to administration of sunitinib alone. The extent to which other, less potent CYP450 3A4 inducers may interact with sunitinib is unknown.

MANAGEMENT: The potential for diminished pharmacologic effects of sunitinib should be considered during coadministration with CYP450 3A4 inducers. Alternative treatments or dose increase for sunitinib may be required if an interaction is suspected.

References (3)
  1. (2006) "Product Information. Sutent (sunitinib)." Pfizer U.S. Pharmaceuticals Group
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  3. Cerner Multum, Inc. "Australian Product Information."

Drug and food interactions

Moderate

SUNItinib food

Applies to: sunitinib

GENERALLY AVOID: Consumption of grapefruit or grapefruit juice during sunitinib therapy may increase the plasma concentrations of sunitinib. The proposed mechanism is inhibition of CYP450 3A4-mediated metabolism by certain compounds present in grapefruit.

MANAGEMENT: Although clinical data are lacking, it may be advisable to avoid the consumption of large amounts of grapefruit or grapefruit juice during sunitinib therapy.

References (1)
  1. (2006) "Product Information. Sutent (sunitinib)." Pfizer U.S. Pharmaceuticals Group
Moderate

brigatinib food

Applies to: brigatinib

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of brigatinib. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. In general, the effect of grapefruit juice is concentration-, dose- and preparation-dependent, and can vary widely among brands. Certain preparations of grapefruit juice (e.g., high dose, double strength) have sometimes demonstrated potent inhibition of CYP450 3A4, while other preparations (e.g., low dose, single strength) have typically demonstrated moderate inhibition. Itraconazole, a potent CYP450 3A4 inhibitor, has been shown to double brigatinib systemic exposure (AUC) in healthy volunteers. Increased exposure to brigatinib may increase the risk of adverse effects such as nausea, vomiting, diarrhea, hypertension, bradycardia, hyperglycemia, visual disturbances, lymphopenia, anemia, and elevations in pancreatic enzymes and creatine phosphokinase.

Food does not significantly affect the oral bioavailability of brigatinib. When brigatinib was administered to healthy volunteers after a high-fat meal (920 calories; 59 g fat, 58 g carbohydrates, 40 g proteins), brigatinib peak plasma concentration (Cmax) decreased by 13% and systemic exposure (AUC) did not change compared to administration after overnight fasting.

MANAGEMENT: Brigatinib may be taken with or without food. Patients should avoid consumption of grapefruit and grapefruit juice during treatment with brigatinib.

References (1)
  1. (2017) "Product Information. Alunbrig (brigatinib)." Ariad Pharmaceuticals Inc

Therapeutic duplication warnings

Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.

Duplication

Multikinase inhibitors

Therapeutic duplication

The recommended maximum number of medicines in the 'multikinase inhibitors' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'multikinase inhibitors' category:

  • brigatinib
  • sunitinib

Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage.

See also

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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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