Healthy volunteers
Not accepted
Inclusion Criteria: - Age \>= 40 years, patients with airflow limitation indicated by post-bronchdilation FEV1 \>=30% and \<80% of predicted normal, current or ex-smokers with a 10 pack year smoking history, patients with a mMRC grade 2 or greater Exclusion Criteria: - prolonged QTCF \>450 ms, paroxysmal atrial fibrillation, Type I or uncontrolled Type II diabetes, history of asthma, COPD diagnosis before age 40, receiving treatments not allowed in the study, other concomitant pulmonary diseases.
Other protocol-defined inclusion/exclusion criteria may apply.