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  • Title: Bronchodilatory effects of NVA237, a once daily long-acting muscarinic antagonist, in COPD patients.
    Author: Fogarty C, Hattersley H, Di Scala L, Drollmann A.
    Journal: Respir Med; 2011 Mar; 105(3):337-42. PubMed ID: 21144724.
    Abstract:
    NVA237 is a novel, once daily inhaled long-acting muscarinic antagonist administered via a dry powder inhaler. This study aimed to assess the 24-h bronchodilatory effect following 14 days of treatment with inhaled NVA237 in patients with mild, moderate or severe COPD. This was a randomized, double-blind, placebo-controlled, two-period, crossover, multicenter study. A total of 33 patients (≥ 40 years; smoking history of ≥ 10 pack-years) were randomized to receive NVA237 50 μg once daily followed by placebo or placebo followed by NVA237 50 μg for 14 days. Treatment periods were separated by a 7-14 day washout period. The primary variable was the mean forced expiratory volume in 1 s (FEV(1)) derived from the area under the curve (AUC) between 0 and 24 h post-dose on Day 14. The 24-h FEV(1) profiles showed a consistent bronchodilator effect for NVA237 versus placebo on Day 14. Least square (LS) mean difference in FEV(1) AUC(0-24 h) values between NVA237 and placebo was 163 mL (P < 0.001). There were significant increases in mean FEV(1) AUC(0-12 h) (LS mean difference 165 mL, P = 0.001) and FEV(1) AUC(12-24 h) (161 mL, P < 0.001) versus placebo. NVA237 significantly improved peak FEV(1) (by 208 mL, P < 0.001) and trough FEV(1) (by 154 mL, P = 0.003) versus placebo on Day 14. NVA237 was well tolerated; all adverse events were mild or moderate in intensity and not related to study drug. NVA237 50 μg once daily was well tolerated and showed significant and sustained 24-h bronchodilation in patients with COPD.
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