Pfizer R&D Japan, Tokyo, Japan.
Pfizer (China) R&D Center, Beijing, China.
Clin Pharmacol Drug Dev. 2020 Jan;9(1):97-106. doi: 10.1002/cpdd.686. Epub 2019 Apr 1.
Ertugliflozin, a sodium-glucose cotransporter 2 inhibitor for the treatment of type 2 diabetes mellitus, prevents renal glucose reabsorption resulting in urinary glucose excretion. This open-label, parallel cohort, randomized study conducted in healthy Chinese adults residing in China assessed the pharmacokinetics, tolerability, and safety of 5 mg and 15 mg of ertugliflozin following single (fasted condition) and multiple-dose (fed condition) administration. Sixteen subjects were randomized and completed the study. Ertugliflozin absorption was rapid, with maximum plasma concentrations observed 1 hour after dosing under fasted conditions and 2 to 4 hours after dosing under fed conditions. Following single- and multiple-dose administration, ertugliflozin exhibited dose-proportional exposures with an apparent mean terminal half-life of approximately 9.5 to 11.9 hours. Steady state was reached after 4 once-daily doses. The accumulation ratio based on the area under the plasma concentration-time curve after multiple-dose administration was approximately 1.3 and 1.2 for ertugliflozin 5 mg and 15 mg, respectively. Ertugliflozin was generally well tolerated following administration of single and multiple oral doses of 5 mg and 15 mg in healthy Chinese subjects. Pharmacokinetic comparison with non-Asian subjects indicated that there are no clinically meaningful racial differences and no dose modification of ertugliflozin is required based on race or body weight.
恩格列净,一种钠-葡萄糖共转运蛋白 2 抑制剂,用于治疗 2 型糖尿病,可阻止肾脏对葡萄糖的重吸收,导致尿中葡萄糖排泄。这项在中国进行的、开放标签、平行队列、随机研究,评估了健康的中国成年人单次(禁食条件)和多次(进食条件)给予 5mg 和 15mg 恩格列净的药代动力学、耐受性和安全性。16 名受试者被随机分配并完成了这项研究。恩格列净吸收迅速,在禁食条件下给药后 1 小时达到最大血浆浓度,在进食条件下给药后 2 至 4 小时达到最大血浆浓度。单次和多次给药后,恩格列净的暴露量呈剂量比例,表观终末半衰期约为 9.5 至 11.9 小时。每日一次给药 4 次后达到稳态。基于多次给药后血浆浓度-时间曲线下面积的蓄积比,恩格列净 5mg 和 15mg 的分别约为 1.3 和 1.2。在健康的中国受试者中,单次和多次口服给予 5mg 和 15mg 的恩格列净后,通常具有良好的耐受性。与非亚洲受试者的药代动力学比较表明,种族间不存在有临床意义的差异,并且无需根据种族或体重调整恩格列净的剂量。