[Translation] A single-center, open-label, randomized, single-dose, four-period, two-sequence, fully repeated crossover bioequivalence study to evaluate the test formulation of tiotropium bromide inhalation spray (strength: 2.5 micrograms/press) and the reference formulation (Spiriva Respimat) (strength: 2.5 micrograms/press) in healthy adult subjects under fasting state
主要目的:研究空腹状态下单次口服受试制剂噻托溴铵吸入喷雾剂(规格:2.5 微克/揿,南昌谷森生物制药有限公司生产)与参比制剂噻托溴铵吸入喷雾剂(商品名Spiriva Respimat,规格:2.5 微克/揿;Boehringer Ingelheim Pharma GmbH and Co.KG生产)在健康受试者体内的药代动力学特征,评价空腹状态经口腔吸入两种制剂的生物等效性。 次要目的:研究受试制剂噻托溴铵吸入喷雾剂(规格:2.5 微克/揿)和参比制剂噻托溴铵吸入喷雾剂(商品名Spiriva Respimat)(规格:2.5 微克/揿)在健康受试者中的安全性。
[Translation] Primary objective: To study the pharmacokinetic characteristics of a single oral dose of the test preparation tiotropium bromide inhalation spray (specification: 2.5 micrograms/press, produced by Nanchang Gusen Biopharmaceutical Co., Ltd.) and the reference preparation tiotropium bromide inhalation spray (trade name Spiriva Respimat, specification: 2.5 micrograms/press; produced by Boehringer Ingelheim Pharma GmbH and Co.KG) in healthy subjects, and to evaluate the bioequivalence of the two preparations by oral inhalation in the fasting state. Secondary objective: To study the safety of the test preparation tiotropium bromide inhalation spray (specification: 2.5 micrograms/press) and the reference preparation tiotropium bromide inhalation spray (trade name Spiriva Respimat) (specification: 2.5 micrograms/press) in healthy subjects.