Effects of ketoconazole, voriconazole, and itraconazole on the pharmacokinetics of apatinib in rats.

Effects of ketoconazole, voriconazole, and itraconazole on the pharmacokinetics of apatinib in rats.

Author:

Lou D, Cui X, Su-Su B, Sun W, Pan WH, Chen MC, Dong YY, Hu GX, Rui-Jie C, Wang Z.

Date: 21 March 2019

Abstract:

We investigated the effect of azole antifungal drugs (ketoconazolevoriconazole, and itraconazole) on the pharmacokinetics of apatinib in rats. The rats in ketoconazolevoriconazole, and itraconazole groups received single-dose apatinib 30 mg/kg after the oral administration of ketoconazolevoriconazole, and itraconazole, respectively. Co-administration of ketoconazole or voriconazole significantly increased the apatinib Cmax and AUC(0-t) and decreased the clearance. Co-administration of itraconazole did not significantly affect the pharmacokineticsparameters of apatinib. It could be concluded that both ketoconazole and voriconazole significantly increase the exposure of apatinib, and affect the pharmacokinetics of apatinib in rat. Apatinib can be co-administered with itraconazole, but ketoconazole and voriconazole should be avoided if possible or be underwent therapeutic drug monitoring of apatinib. A further clinical study should be conducted to investigate the inhibitory effect of azole antifungal drugs on the apatinib plasma concentration.

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