Confirmatory Study of Indacaterol in Patients With Chronic Obstructive Pulmonary Disease (COPD)

Inclusion criteria

• Diagnosis of moderate-to-severe chronic obstructive pulmonary disease (COPD), as classified by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines and:

• Smoking history of at least 20 pack-years.
• Post-bronchodilator forced expiratory volume in 1 second (FEV1) < 80% and ≥ 30% of the predicted normal value.
• Post-bronchodilator FEV1/FVC (forced vital capacity) < 70%.

Exclusion criteria

• Patients who have been hospitalized for a COPD exacerbation in the 6 weeks prior to screening or during the 14 day run-in period prior to randomization.
• Patients requiring long-term oxygen therapy (> 15 hours a day) for chronic hypoxemia.
• Patients who have had a respiratory tract infection within 6 weeks prior to screening.
• Patients with concomitant pulmonary disease.
• Patients with a history of asthma.
• Patients with diabetes Type I or uncontrolled diabetes Type II.
• Any patient with lung cancer or a history of lung cancer.
• Any patient with active cancer or a history of cancer with less than 5 years disease-free survival time.
• Patients with a history of long QT syndrome or whose QTc interval (Bazett's) measured at screening or randomization is prolonged.
• Patients who have been vaccinated with live attenuated vaccines within 30 days prior to screening or during the run-in period.
• Patients unable to successfully use a dry powder inhaler device or perform spirometry measurements.

Other protocol-defined inclusion/exclusion criteria applied to the study.