COMPARATIVE STUDY
JOURNAL ARTICLE
MULTICENTER STUDY
RANDOMIZED CONTROLLED TRIAL

A multicenter, randomized, double-blind dose-ranging study of glycopyrrolate/formoterol fumarate fixed-dose combination metered dose inhaler compared to the monocomponents and open-label tiotropium dry powder inhaler in patients with moderate-to-severe COPD

Donald P Tashkin, Fernando J Martinez, Roberto Rodriguez-Roisin, Charles Fogarty, Mark Gotfried, Michael Denenberg, Gregory Gottschlich, James F Donohue, Chad Orevillo, Patrick Darken, Earl St Rose, Shannon Strom, Tracy Fischer, Michael Golden, Colin Reisner
Respiratory Medicine 2016, 120: 16-24
27817811

BACKGROUND: This study formed part of the dose selection for a glycopyrrolate (GP)/formoterol fumarate (FF) fixed-dose combination formulated using novel Co-Suspension™ Delivery Technology and delivered via a metered dose inhaler (GFF MDI). The study aimed to confirm the optimal dose of GP to formulate with FF 9.6 μg in the fixed-dose combination product, GFF MDI.

METHODS: This multicenter, randomized, double-blind, chronic-dosing, balanced incomplete block, crossover study (NCT01587079) compared five doses of GFF MDI (18/9.6, 9/9.6, 4.6/9.6, 2.4/9.6 and 1.2/9.6 μg, twice daily [BID]) with its monocomponents FF MDI 9.6 μg and GP MDI 18 μg (both BID) and open-label tiotropium (18 μg once daily) as the active control. The primary efficacy endpoint was change from baseline in forced expiratory volume in 1 s area under the curve from 0 to 12 h (FEV1 AUC0-12 ) on Day 7.

RESULTS: In total, 159 patients were randomized to treatment and 132 patients (52.2% male, mean age 62.8 years) were included in the intent-to-treat population. All doses of GFF MDI (except 1.2/9.6 μg) resulted in statistically significant improvements in FEV1 AUC0-12 versus monocomponents and open-label tiotropium. GFF MDI 18/9.6 μg consistently showing the greatest improvement over monocomponents and open-label tiotropium. Adverse events for each GFF MDI dose were similar versus GP MDI 18 μg, FF MDI 9.6 μg and open-label tiotropium.

CONCLUSIONS: These findings further support selection of GP 18 μg as the optimal dose to combine with FF MDI 9.6 μg for advancement into Phase III clinical trials of GFF MDI.

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