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AMPLIFY: a randomized, Phase III study evaluating the efficacy and safety of aclidinium/formoterol vs monocomponents and tiotropium in patients with moderate-to-very severe symptomatic COPD

Authors Sethi S, Kerwin E, Watz H, Ferguson GT, Mroz RM, Segarra R, Molins E, Jarreta D, Garcia Gil E

Received 2 October 2018

Accepted for publication 31 January 2019

Published 22 March 2019 Volume 2019:14 Pages 667—682


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Richard Russell

Sanjay Sethi,1 Edward Kerwin,2 Henrik Watz,3 Gary T Ferguson,4 Robert M Mroz,5,6 Rosa Segarra,7 Eduard Molins,7 Diana Jarreta,7 Esther Garcia Gil7

1Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, NY, USA; 2Clinical Research Institute, Medford, OR, USA; 3Pulmonary Research Institute at LungenClinic Grosshansdorf, Airway Research Center North, German Center for Lung Research, Grosshansdorf, Germany; 4Pulmonary Research Institute of Southeast Michigan, Farmington Hills, MI, USA; 5Centrum Medycyny Oddechowej, Białystok, Poland; 6Medical University of Białystok, Białystok, Poland; 7AstraZeneca, Barcelona, Spain

Background: AMPLIFY assessed the efficacy and safety of aclidinium bromide/formoterol fumarate (AB/FF) vs its monocomponents and tiotropium (TIO) in patients with moderate-to-very severe symptomatic COPD (NCT02796677).
Methods: In this 24-week, Phase III, double-dummy, active-controlled study, symptomatic patients (COPD Assessment Test score ≥10) were randomized to twice-daily AB/FF 400/12 µg, AB 400 µg, or FF 12 µg, or once-daily TIO 18 µg. Co-primary endpoints were change from baseline at week 24 in 1-hour morning post-dose FEV1 (AB/FF vs AB) and in pre-dose (trough) FEV1 (AB/FF vs FF). Non-inferiority of AB vs TIO in pre-dose FEV1 was also an objective. Normalized area under the curve (AUC)0–3/3 h FEV1 and nighttime and early morning symptoms were also assessed. A subgroup participated in a 24-hour serial spirometry sub-study.
Results: A total of 1,594 patients were randomized; 566 entered the sub-study. At week 24, 1-hour post-dose FEV1 significantly improved with AB/FF vs AB, FF, and TIO (84, 84, and 92 mL; all P<0.0001). AB/FF significantly improved trough FEV1 vs FF (55 mL, P<0.001) and AB was non-inferior to TIO. AB/FF significantly improved AUC0–3/3 h FEV1 vs all comparators (P<0.0001) and provided significant improvements in early morning symptoms vs TIO. The 24-hour spirometry demonstrated significantly greater improvements with AB/FF in AUC12–24/12 h vs all comparators, and in AUC0–24/24 h vs FF or TIO at week 24.
Conclusion: In patients with moderate-to-very severe symptomatic COPD, twice-daily AB/FF significantly improved lung function vs monocomponents and TIO, and early morning symptom control vs TIO.

Keywords: aclidinium bromide, bronchodilators, LAMA, LABA, 24-hour lung function

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