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J Clin Pharmacol. 2007 Apr;47(4):479-84.

The effect of different meal types on the pharmacokinetics of darunavir (TMC114)/ritonavir in HIV-negative healthy volunteers.

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Tibotec, Inc, Yardley, Pennsylvania, USA.


This open-label, randomized, crossover study investigated the bioavailability, short-term safety, and tolerability of darunavir (TMC114) coadministered with low-dose ritonavir under fasted conditions and after different meal types in HIV-negative healthy volunteers. All volunteers received ritonavir 100 mg twice daily on days 1 to 5, with a single darunavir 400-mg tablet given on day 3 (darunavir/rtv). Pharmacokinetic parameters for darunavir and ritonavir were determined under fasted conditions and following a standard breakfast, a high-fat breakfast, a nutritional protein-rich drink, or a croissant with coffee. Administration of darunavir/rtv in a fasting state resulted in a decrease in darunavir C(max) and AUC(last) of approximately 30% compared with administration after a standard meal. No significant differences in darunavir plasma concentrations were observed between different fed states. Darunavir/rtv should therefore be administered with food, but exposure to darunavir is not affected by the type of meal.

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