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Comparative effectiveness of budesonide/formoterol combination and tiotropium bromide among COPD patients new to these controller treatments

Authors Trudo F, Kern D, Davis J, Tunceli O, Zhou S, Graham E, Strange C, Williams S

Received 17 June 2015

Accepted for publication 5 August 2015

Published 28 September 2015 Volume 2015:10(1) Pages 2055—2066


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Richard Russell

Frank Trudo,1 David M Kern,2 Jill R Davis,1 Ozgur Tunceli,2 Siting Zhou,2 Emma L Graham,3 Charlie Strange,4 Setareh A Williams1

1AstraZeneca Pharmaceuticals LP, 2HealthCore, Inc., Wilmington, DE, USA; 3AstraZeneca Pharmaceuticals LP, Alderley Park, Cheshire, UK; 4Division of Pulmonary and Critical Care Medicine, Department of Medicine, Medical University of South Carolina, Charleston, SC, USA

Background: Inhaled corticosteroid/long-acting β2-agonist combinations and/or long-acting muscarinic antagonists are recommended first-line therapies for preventing chronic obstructive pulmonary disease (COPD) exacerbation. Comparative effectiveness of budesonide/formoterol combination (BFC, an inhaled corticosteroid/long-acting β2-agonist combination) vs tiotropium (long-acting muscarinic antagonist) in the US has not yet been studied.
Methods: Using US claims data from the HealthCore Integrated Research Environment, COPD patients (with or without comorbid asthma) ≥40 years old initiating BFC or tiotropium between March 1, 2009 and February 28, 2012 and at risk for exacerbation were identified and followed for 12 months. Patients were propensity score matched on demographics and COPD disease severity indicators. The primary outcome was time to first COPD exacerbation. Secondary outcomes included COPD exacerbation rate, health care resource utilization, and costs.
Results: The Cox proportional hazards model for time to first exacerbation yielded a hazard ratio (HR) of 0.78 (95% CI =[0.70, 0.87], P<0.001), indicating a 22% reduction in risk of COPD exacerbation associated with initiation of BFC versus tiotropium. A post hoc sensitivity analysis found similar effects in those who had a prior asthma diagnosis (HR =0.72 [0.61, 0.86]) and those who did not (HR =0.83 [0.72, 0.96]). BFC initiation was associated with lower COPD-related health care resource utilization and costs ($4,084 per patient-year compared with $5,656 for tiotropium patients, P<0.001).
Conclusion: In COPD patients new to controller therapies, initiating treatment with BFC was associated with improvements in health and economic outcomes compared with tiotropium.

Keywords: COPD, inhaled corticosteroid/long-acting β2-agonist combinations, long-acting muscarinic antagonist, comparative effectiveness, administrative claims

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