• Respiratory medicine · Aug 2010

    Randomized Controlled Trial Multicenter Study Comparative Study

    Efficacy and safety of ipratropium bromide/albuterol delivered via Respimat inhaler versus MDI.

    • R Zuwallack, M C De Salvo, T Kaelin, E D Bateman, C S Park, R Abrahams, F Fakih, P Sachs, K Pudi, Y Zhao, C C Wood, and Combivent Respimat Inhaler Study Group.
    • St. Francis Hospital Medical Center, Hartford, CT 06105, USA. rzuwalla@stfranciscare.org
    • Respir Med. 2010 Aug 1;104(8):1179-88.

    AbstractWe compared the efficacy and safety of ipratropium bromide/albuterol delivered via Respimat inhaler, a novel propellant-free inhaler, versus chlorofluorocarbon (CFC)-metered dose inhaler (MDI) and ipratropium Respimat inhaler in patients with COPD. This was a multinational, randomized, double-blind, double-dummy, 12-week, parallel-group, active-controlled study. Patients with moderate to severe COPD were randomized to ipratropium bromide/albuterol (20/100mcg) Respimat inhaler, ipratropium bromide/albuterol MDI [36mcg/206mcg (Combivent Inhalation Aerosol MDI)], or ipratropium bromide (20mcg) Respimat inhaler. Each medication was administered four times daily. Serial spirometry was performed over 6h (0.15min, then hourly) on 4 test days. The primary efficacy variable was forced expiratory volume in 1s (FEV(1)) change from test day baseline at 12 weeks. A total of 1209 of 1480 randomized, treated patients completed the study; the majority were male (65%) with a mean age of 64 yrs and a mean screening pre-bronchodilator FEV(1) (percent predicted) of 41%. Ipratropium bromide/albuterol Respimat inhaler had comparable efficacy to ipratropium bromide/albuterol MDI for FEV(1) area under the curve at 0-6h (AUC(0-6)), superior efficacy to ipratropium Respimat inhaler for FEV(1) AUC(0-4) and comparable efficacy to ipratropium Respimat inhaler for FEV(1) AUC(4-6). All active treatments were well tolerated. This study demonstrates that ipratropium bromide/albuterol 20/100mcg inhaler administered four times daily for 12 weeks had equivalent bronchodilator efficacy and comparable safety to ipratropium bromide/albuterol 36mcg/206mcg MDI, and significantly improved lung function compared with the mono-component ipratropium bromide 20 mcg Respimat inhaler. [Clinical Trial Identifier Number: NCT00400153].Copyright 2010 Elsevier Ltd. All rights reserved.

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