Abstract
Background: Tiotropium Respimat® improved lung function in a phase 2 trial in patients with cystic fibrosis (CF). We investigated its efficacy and safety in a phase 3 trial, including a pre-specified pooled analysis of the phase 2 and 3 trials.
Methods: 12-week, randomized, double-blind, placebo-controlled trial of tiotropium Respimat® 5. μg once daily in patients with CF (N = 463).
Results: Co-primary efficacy endpoints showed no statistical difference between tiotropium and placebo: percent-predicted forced expiratory volume in 1s (FEV1) area under the curve from 0-4h (AUC0-4h) (95% CI): 1.64% (0.27,3.55; p=0.092); percent-predicted trough FEV1 (95% CI) 1.40% (0.50,3.30; p=0.15). Adverse events were similar between groups. Pooled phase 2/3 trial results showed a treatment difference in favor of tiotropium: percent-predicted FEV1 AUC0-4h (95% CI): 2.62% (1.34,3.90).
Conclusion: Tiotropium was well tolerated in patients with CF; lung function improvements compared with placebo were not statistically significant in the phase 3 trial. Clinical trials: These studies are registered with clinical trial identifier numbers NCT00737100 and NCT01179347NCT00737100NCT01179347. These studies are also registered with the EudraCT number: 2008-001156-43 and 2010-019802-17.
Original language | English |
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Pages (from-to) | 608-614 |
Number of pages | 7 |
Journal | Journal of Cystic Fibrosis |
Volume | 14 |
Issue number | 5 |
Early online date | 26 Mar 2015 |
DOIs | |
Publication status | Published - Sept 2015 |
Bibliographical note
Copyright © 2015. Published by Elsevier B.V.Keywords
- Bronchodilator
- Cystic fibrosis
- Respimat
- Tiotropium
ASJC Scopus subject areas
- Pulmonary and Respiratory Medicine
- Pediatrics, Perinatology, and Child Health