Results: A total of 108 patients were randomized to different treatment groups (mean age,
60.5 years; mean post-bronchodilator, forced expiratory volume in 1 second [FEV1] 57.1%
predicted). Ninety-five patients completed the study. On Day 21, a 21% difference in endurance
time was observed between patients treated with NVA237 and those treated with placebo
(P , 0.001); the effect was also significant from Day 1, with an increase of 10%. Dynamic IC
at exercise isotime and trough FEV1 showed significant and clinically relevant improvements
from Day 1 of treatment that were maintained throughout the study. This was accompanied by
inverse decreases in residual volume and functional residual capacity. NVA237 was superior to
placebo (P , 0.05) in decreasing leg discomfort (Borg CR10 scale) on Day 21 and exertional
dyspnea on Days 1 and 21 (transition dyspnea index and Borg CR10 scale at isotime). The safety
profile of NVA237 was similar to that of the placebo.