The primary objective of this trial is to investigate the effect of 6 weeks treatment with tiotropium + olodaterol fixed dose combination inhalation solution on lung hyperinflation and exercise tolerance in patients with COPD.
placebo matching tiotropium + olodaterol
Tiotropium 2.5 mcg + olodaterol 5 mcg once daily
tiotropium 5 mcg + olodaterol 5 mcg once daily
tiotropium
Olodaterol 5 mcg once daily
Respimat inhaler
Buenos Aires, Argentina
Mendoza, Argentina