期刊
CLINICAL THERAPEUTICS
卷 42, 期 2, 页码 295-304出版社
ELSEVIER
DOI: 10.1016/j.clinthera.2020.01.003
关键词
dapagliflozinDrug-drug; interactionLobeglitazonePharmacokineticsType 2 diabetes
Purpose: Coadministration of lobeglitazone and dapagliflozin is expected to result in a blood glucose-lowering effect, followed by a gradual increase, in clinical usage; however, combining drugs could cause negative interactions. This study aimed to evaluate the effect of the coadministration of lobeglitazone and dapagliflozin on their individual pharmacokinetic properties at steady state in healthy male volunteers in the fasted state. Methods: This study consisted of 2 parts, each of which was a randomized, open-labeled, multiple-dose, 2-way crossover study in 20 healthy male volunteers in each part. Blood samples were taken periodically over a 48-h period after dosing to derive total plasma lobeglitazone and dapagliflozin pharmacokinetic properties; safety profile was evaluated throughout the study. Findings: When the pharmacokinetic properties of dapagliflozin were evaluated following its administration alone and in combination with lobeglitazone, point estimate and 90% CI of the geometric mean ratio of dapagliflozin AUC(tau) were entirely within the conventional bioequivalence range of 80%-125%. However, although it was not clinically meaningful, its C-ss,C-max was similar to 8% lower in subjects receiving multiple doses of dapagliflozin and lobeglitazone than that in those administered dapagliflozin alone. The pharmacokinetic properties of lobeglitazone were evaluated following its administration alone and in combination with dapagliflozin. The geometric mean ratios and 90% CIs of the lobeglitazone C-ss,C-max and AUC(tau) were within the conventional bioequivalence range of 80%-125%. Implications: Coadministration of lobeglitazone and dapagliflozin had no apparent clinically relevant effects on the pharmacokinetic properties of either drug. Based on these findings, it is anticipated that lobeglitazone and dapagliflozin can be coadministered without dose adjustment. (C) 2020 Elsevier Inc. All rights reserved.
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