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Cost-effectiveness analysis of umeclidinium/vilanterol for the management of patients with moderate to very severe COPD using an economic model

Authors Wilson MR, Patel JG, Coleman A, McDade CL, Stanford RH, Earnshaw SR

Received 11 October 2016

Accepted for publication 30 January 2017

Published 24 March 2017 Volume 2017:12 Pages 997—1008


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Richard Russell

Michele R Wilson,1 Jeetvan G Patel,2,3 Amber Coleman,2 Cheryl L McDade,1 Richard H Stanford,2 Stephanie R Earnshaw1

1RTI Health Solutions, Research Triangle Park, NC, USA; 2GSK, Research Triangle Park, NC, USA; 3Amgen Inc., Thousand Oaks, CA, USA

Background: Bronchodilators such as long-acting muscarinic antagonists (LAMAs) and long-acting β2-agonists (LABAs) are central to the pharmacological management of COPD. Dual bronchodilation with umeclidinium/vilanterol (UMEC/VI; 62.5/25 µg) is a novel LAMA/LABA combination approved for maintenance treatment for patients with COPD.
Objective: The objective of this study was to assess the cost-effectiveness of maintenance treatment with UMEC/VI compared with tiotropium (TIO) 18 µg, open dual LAMA + LABA treatment, or no long-acting bronchodilator treatment in patients with moderate to very severe COPD.
Methods: A Markov model was developed to estimate the costs and outcomes associated with UMEC/VI treatment in patients with moderate to very severe COPD (GSK study number: HO-13-13411). Clinical efficacy, costs, utilities, and mortality obtained from the published literature were used as the model inputs. Costs are presented in US dollars based on 2015 prices. The model outputs are total costs, drug costs, other medical costs, number of COPD exacerbations, and quality-adjusted life-years (QALYs). Costs and outcomes were discounted at a 3% annual rate. Incremental cost-effectiveness ratios were calculated. One-way and probabilistic sensitivity analyses were conducted to assess the effects of changing parameters on the uncertainty of the results.
Results: UMEC/VI treatment for moderate to very severe COPD was associated with lower lifetime medical costs ($82,344) compared with TIO ($88,822), open dual LAMA + LABA treatment ($114,442), and no long-acting bronchodilator ($86,751). Fewer exacerbations were predicted to occur with UMEC/VI treatment compared with no long-acting bronchodilator treatment. UMEC/VI provided an 0.11 and 0.25 increase in QALYs compared with TIO and no long-acting bronchodilator treatment, and as such, dominated these cost-effectiveness analyses. Sensitivity analyses confirmed that the results were robust.
Conclusion: The results from this model suggest that UMEC/VI treatment would be dominant compared with TIO and no long-acting bronchodilator treatment, and less costly than open dual LAMA + LABA treatment in patients with moderate to very severe COPD.

Keywords: umeclidinium, vilanterol, cost-effectiveness, tiotropium, COPD

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