Sitagliptin, an dipeptidyl peptidase‐4 inhibitor, does not alter the pharmacokinetics of the sulphonylurea, glyburide, in healthy subjects
- 22 May 2008
- journal article
- research article
- Published by Wiley in British Journal of Clinical Pharmacology
- Vol. 66 (1), 36-42
- https://doi.org/10.1111/j.1365-2125.2008.03148.x
Abstract
Sitagliptin, a dipeptidyl peptidase-4 inhibitor, is an incretin enhancer that is approved for the treatment of Type 2 diabetes. Sitagliptin is mainly renally eliminated and not an inhibitor of CYP450 enzymes in vitro. Glyburide, a sulphonylurea, is an insulin sensitizer and mainly metabolized by CYP2C9. Since both agents may potentially be co-administered, the purpose of this study was to examine the effects of sitagliptin on glyburide pharmacokinetics. In this open-label, randomized, two-period crossover study, eight healthy normoglycaemic subjects, 22-44 years old, received single 1.25-mg doses of glyburide alone in one period and co-administered with sitagliptin on day 5 following a multiple-dose regimen for sitagliptin (200-mg q.d. x 6 days) in the other period. The geometric mean ratios and 90% confidence intervals [(glyburide + sitagliptin)/glyburide] for AUC(0-infinity) and C(max) were 1.09 (0.96, 1.24) and 1.01 (0.84, 1.23), respectively. Sitagliptin does not alter the pharmacokinetics of glyburide in healthy subjects.Keywords
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