Effect of food on the pharmacokinetics of sunitinib malate (SU11248), a multi-targeted receptor tyrosine kinase inhibitor: results from a phase I study in healthy subjects

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Abstract
The effect of food on the oral bioavailability of sunitinib malate (SU11248, an oral, multi-targeted tyrosine kinase inhibitor with anti-angiogenic and anti-tumor activities) was assessed in a randomized open-label, two-way crossover study. A 50-mg dose of SU11248 was administered to 16 healthy subjects after a 10-h fast in one period and after a high-fat, high-calorie meal in the other period. The 90% confidence intervals (CIs) for maximum plasma concentration (C max) and area under the concentration–time curve (AUC) were within the 80–125% bioequivalence range, indicating the absence of a food effect. SU11248 exposure increased slightly in the fed compared with the fasted state (ratios of fed/fasted geometric least square means: C max 104%, AUC0–last and AUC0–∞ both 112%). There was a delay in the formation/absorption of the active metabolite SU12662 in the fed state (mean C max decreased 23%), but exposure remained unaffected (90% CIs for AUC0–last and AUC0–∞were within 80–125%). These results indicate that SU11248 can be administered with or without food.