Pharmacokinetics and Tolerability of Budesonide/Glycopyrronium/Formoterol Fumarate Dihydrate and Glycopyrronium/Formoterol Fumarate Dihydrate Metered Dose Inhalers in Healthy Chinese Adults: A Randomized, Double-blind, Parallel-group Study.

The objective of this study was to assess pharmacokinetic (PK) and safety profiles of 2 fixed-dose combinations in development for the treatment of chronic obstructive pulmonary disease (COPD): budesonide/glycopyrronium/formoterol fumarate dihydrate metered-dose inhaler (BGF MDI; triple combination) and glycopyrronium/formoterol fumarate dihydrate (GFF MDI; dual combination). The PK and safety profiles of BGF MDI and GFF MDI were assessed for the first time in healthy Chinese adults after single and repeated (7-day) dosing. This Phase I, randomized, double-blind, parallel-group study was conducted at a single site in Shanghai, China. Male or female Chinese subjects, 18-45 years of age and in good general health, were randomized 1:1:1 to receive BGF MDI 320/14.4/10 μg, BGF MDI 160/14.4/10 μg, or GFF MDI 14.4/10 μg. PK parameters were assessed after a single dose (day 1) and at steady state (day 8), and included AUC Ninety-six subjects (mean age, 25.6 years; 83.3% male) were randomized and received treatment. All randomized subjects were included in the safety and PK populations. After single and repeated dosing, budesonide AUC Overall, all treatments were well tolerated and PK parameters were generally comparable to those previously reported in Western and Japanese healthy subjects, suggesting that the doses of BGF MDI and GFF MDI in development globally for COPD are also appropriate for Chinese patients with COPD. ClinicalTrials.gov identifier: NCT03075267.

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