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Drug Interactions between midostaurin and nilotinib

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

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Interactions between your drugs

Major

nilotinib midostaurin

Applies to: nilotinib and midostaurin

GENERALLY AVOID: Nilotinib can cause concentration-dependent prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT interval may result in additive effects and increased risk of ventricular arrhythmias including torsade de pointes and sudden death. Nilotinib treatment alone has been associated with reported cases of sudden death. The early occurrence of some of these deaths relative to the initiation of nilotinib suggests the possibility that ventricular repolarization abnormalities may have been involved. In general, the risk of an individual agent or a combination of agents causing ventricular arrhythmia in association with QT prolongation is largely unpredictable but may be increased by certain underlying risk factors such as congenital long QT syndrome, cardiac disease, and electrolyte disturbances (e.g., hypokalemia, hypomagnesemia). In addition, the extent of drug-induced QT prolongation is dependent on the particular drug(s) involved and dosage(s) of the drug(s).

MANAGEMENT: Coadministration of nilotinib with other drugs that can prolong the QT interval should generally be avoided. Should treatment with other QT-prolonging drugs be required, the manufacturer recommends that nilotinib therapy be withheld temporarily. Caution and clinical monitoring are recommended if concomitant use is unavoidable. Patients should have frequent ECGs and be monitored for arrhythmias when QT interval is prolonged. A QTc interval exceeding 480 msec will require suspension of nilotinib therapy and immediate action to correct any concomitant risk factors before resuming treatment. Patients should be advised to seek prompt medical attention if they experience symptoms that could indicate the occurrence of torsade de pointes such as dizziness, lightheadedness, fainting, palpitation, irregular heart rhythm, shortness of breath, or syncope.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. Canadian Pharmacists Association (2006) e-CPS. http://www.pharmacists.ca/function/Subscriptions/ecps.cfm?link=eCPS_quikLink
  3. (2007) "Product Information. Tasigna (nilotinib)." Novartis Pharmaceuticals
  4. Cerner Multum, Inc. "Australian Product Information."
View all 4 references

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Drug and food interactions

Major

nilotinib food

Applies to: nilotinib

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of nilotinib. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruits. Because nilotinib is associated with concentration-dependent prolongation of the QT interval, increased levels may potentiate the risk of ventricular arrhythmias such as torsade de pointes and sudden death.

ADJUST DOSING INTERVAL: Food increases the oral bioavailability of nilotinib. The mechanism of interaction is unknown. Compared to the fast state, nilotinib systemic exposure (AUC) increased by 82% when the dose was given 30 minutes after a high-fat meal. Because nilotinib is associated with concentration-dependent prolongation of the QT interval, increased levels may potentiate the risk of ventricular arrhythmias such as torsade de pointes and sudden death.

MANAGEMENT: Patients treated with nilotinib should avoid consumption of grapefruit, grapefruit juice, and any supplement containing grapefruit extract. In addition, no food should be consumed for at least 2 hours before and 1 hour after a nilotinib dose.

References

  1. (2007) "Product Information. Tasigna (nilotinib)." Novartis Pharmaceuticals

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Major

midostaurin food

Applies to: midostaurin

GENERALLY AVOID: Grapefruit juice may significantly increase the plasma concentrations of midostaurin. 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. Ketoconazole, a potent CYP450 3A4 inhibitor, has been shown to increase midostaurin systemic exposure (AUC) by greater than 10-fold in healthy volunteers. Increased exposure to midostaurin may increase the risk of adverse effects such as nausea, vomiting, diarrhea, edema, hyperglycemia, hyperuricemia, QT prolongation, neutropenia, lymphopenia, thrombocytopenia, and anemia.

ADJUST DOSING INTERVAL: Food enhances the oral bioavailability of midostaurin. Relative to fasting conditions, midostaurin systemic exposure (AUC) increased by approximately 1.2-fold when administered with a standard meal (457 calories; 50 g fat, 21 g proteins, 18 g carbohydrates) and 1.6-fold when administered with a high-fat meal (1007 calories; 66 g fat, 32 g proteins, 64 g carbohydrates), while midostaurin peak plasma concentration (Cmax ) decreased by 20% and 27%, respectively.

MANAGEMENT: The manufacturer recommends taking midostaurin with food. Midostaurin was administered with food in clinical trials. Patients should avoid consumption of grapefruit and grapefruit juice during treatment with midostaurin.

References

  1. (2017) "Product Information. Rydapt (midostaurin)." Novartis Pharmaceuticals

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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

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