Drug interactions between Gleevec and Sprycel
Results for the following 2 drugs: |
|
|---|---|
| Gleevec (imatinib) | |
| Sprycel (dasatinib) | |
Interactions between your selected drugs
imatinib ⇔ dasatinib
Applies to: Gleevec (imatinib) and Sprycel (dasatinib)
MONITOR: Coadministration with inhibitors of CYP450 3A4 may increase the plasma concentrations and pharmacologic effects of dasatinib, which is primarily metabolized by the isoenzyme. In a drug interaction study of 18 patients with solid tumors, coadministration of dasatinib (20 mg once a day) with the potent inhibitor ketoconazole (200 mg twice a day) increased the dasatinib peak plasma concentration (Cmax) and systemic exposure (AUC) by approximately 4- and 5-fold, respectively, compared to administration without ketoconazole. Data are not available for dasatinib in combination with other CYP450 3A4 inhibitors. Theoretically, a reverse interaction may also occur, since many CYP450 3A4 inhibitors are also substrates of the isoenzyme and dasatinib is an inhibitor.
MANAGEMENT: Caution is advised if dasatinib is used in combination with moderate CYP450 3A4 inhibitors. Close monitoring for toxicity (e.g., myelosuppression, bleeding complications, fluid retention) is recommended, and the dasatinib dosage adjusted as necessary. Patients should also be monitored for altered efficacy and safety of the concomitant administered drug.
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