Efficacy of DNK333 in Patients With COPD and Cough

Inclusion Criteria: * Mild to moderate COPD * Forced expiratory volume in 1 second (FEV1) ≥30% predicted * FEV1/FVC (forced vital capacity) \<70% * Significant amount of cough and minimal amount of sputum production, both as judged by self reporting Exclusion criteria: * Upper or lower airway infection within 4 weeks prior to screening * COPD exacerbation within 4 weeks prior to screening * Past history or current diagnosis of congestive heart failure, cirrhosis or hepatic failure * History of lung cancer or pulmonary resection/thoracic radiotherapy Other protocol-defined inclusion/exclusion criteria may apply