• Nicola A Hanania, Donald P Tashkin, Edward M Kerwin, James F Donohue, Michael Denenberg, Denis E O'Donnell, Dean Quinn, Shahid Siddiqui, Chad Orevillo, Andrea Maes, and Colin Reisner.
• Baylor College of Medicine, Houston, TX, USA. Electronic address: hanania@bcm.edu.
• Respir Med. 2017 May 1; 126: 105-115.

BackgroundThe long-term safety and efficacy of a novel Co-Suspension™ Delivery Technology glycopyrrolate (GP)/formoterol fumarate (FF) 18/9.6 μg fixed-dose combination metered dose inhaler (GFF MDI) were investigated in a 28-week safety extension study (PINNACLE-3, NCT01970878) of two randomized controlled Phase III trials (PINNACLE-1 and -2; NCT01854645 and NCT01854658) in subjects with moderate-to-very severe chronic obstructive pulmonary disease (COPD).MethodsSubjects completing 24 weeks' treatment with GFF MDI, GP MDI, FF MDI (all twice-daily) or open-label tiotropium 18 μg (once-daily) in PINNACLE-1 or -2 were randomly selected to continue treatment for 28 weeks. The target enrollment for PINNACLE-3 was 850 subjects. Safety and efficacy were evaluated over 52 weeks.ResultsOf 3274 subjects randomized to active treatment in PINNACLE-1 or -2, 892 entered PINNACLE-3. Incidences of adverse events, serious adverse events and major adverse cardiovascular events were similar across treatment groups with no unexpected safety findings. For change from baseline in morning pre-dose trough forced expiratory volume in 1 s (FEV1), treatment differences for GFF MDI versus GP MDI, FF MDI and open-label tiotropium over 52 weeks were 57, 65 and 25 mL, respectively (p ≤ 0.0117). Average daily rescue medication use was significantly reduced for GFF MDI versus GP MDI and open-label tiotropium (p ≤ 0.0002). Statistically significant improvements were observed with GFF MDI versus monocomponents in Self-Administered Computerized Transition Dyspnea Index focal score, and in St George's Respiratory Questionnaire total score versus GP MDI.ConclusionsResults confirmed the long-term safety and tolerability of GFF MDI 18/9.6 μg twice-daily in subjects with moderate-to-very severe COPD. Improvements in efficacy endpoints were also sustained over 52 weeks.Copyright © 2017 The Authors. Published by Elsevier Ltd.. All rights reserved.

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