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Pharmacoeconomic evaluation of tiotropium bromide in the long-term treatment of chronic obstructive pulmonary disease (COPD) in Italy

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A Commentary to this article was published on 10 May 2012

Abstract

The randomized, double-blind trial UPLIFT® demonstrated in 5,993 patients with moderate to very severe COPD that 4 years of tiotropium bromide therapy were associated with improvements in lung function, exacerbations, quality of life, and mortality compared with placebo. The pharmacoeconomic evaluation was performed through a probabilistic, patient-level simulation Markov model. Routine COPD care (RC) was compared with the inclusion of tiotropium bromide on it. The analysis was conducted over a lifetime horizon, with 1 year cycles and a 3.5% annual discount rate. Patients were characterized by gender, age, height, smoking status, and forced expiratory volume in 1 s (FEV1). FEV1 time trend was modeled according to the annual decline recorded in UPLIFT®. Mortality derived from that of the general Italian population was adjusted by smoking status and FEV1. Health utilities derived from published Italian observational studies and were varied in time according to UPLIFT® data. Exacerbation rates were derived from a published Italian observational prospective study. The cost perspective was that of the Italian National Health Service. Healthcare resource consumption for RC and exacerbations derived from Italian observational studies were valued according to current price and tariffs. Simulated patients in the tiotropium arm gained an average (95% CI) 0.50 (−1.63 to 6.27) Life Years (LYs) and 0.42 (−0.25 to 3.05) Quality-Adjusted Life Years (QALYs). The incremental lifetime cost resulted €3,357 (−€10,669 to €29,820). The incremental cost-effectiveness ratio (ICER) was €6,698/LY and €7,916/QALY. In the cost-effectiveness acceptability curve (CEAC), tiotropium had a 90% probability of being cost-effective for a willingness to pay (WTP) threshold of € 10,000/QALY.

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Acknowledgments

O. Zaniolo, L. Pradelli and S. Iannazzo are employees of AdRes Srl, Torino, Italy, an independent health economics consulting and research company. Boehringer Ingelheim Italia S.p.A., Milan, Italy supported the development of the model through a service contract with AdRes. M Miravitlles has received honoraria for lecturing and participating in advisory board for Boehringer Ingelheim G.m.b.H.

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  1. c/o AdRes Health Economics & Outcomes Research, C.so Vigevano, 35, 10152, Turin, Italy

    O. Zaniolo, S. Iannazzo & L. Pradelli

  2. Fundació Clínic. IDIBAPS, ciber de Enfermedades Respiratorias (Ciberes) Barcelona, Spain Hospital Clínic, Barcelona, Spain

    M. Miravitlles

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  1. O. Zaniolo
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  2. S. Iannazzo
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Zaniolo, O., Iannazzo, S., Pradelli, L. et al. Pharmacoeconomic evaluation of tiotropium bromide in the long-term treatment of chronic obstructive pulmonary disease (COPD) in Italy. Eur J Health Econ 13, 71–80 (2012). https://doi.org/10.1007/s10198-010-0285-8

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