Effect of Glycopyrronium on Morning Symptoms and Pulmonary Function in Patients With Moderate to Severe COPD

Randomized, multicenter, blinded, two-period cross-over design. Each treatment will last 28 days. All patients will receive both treatments in a cross-over design, with a wash-out period of 14-19 days in between. The total duration of the study for each patient is approximately 70 days (from randomization) plus 30 days of safety follow-up.