Investigate the Safety, Tolerability and Pharmacokinetics of CHF6523 in Healthy and in COPD Subjects (CHF6523)

This study is designed to investigate the safety, tolerability and pharmacokinetics of inhaled CHF6523 DPI in healthy male subjects first and then in COPD subjects after single or repeated dosesof CHF6523. As an exploratory assessment, the anti-inflammatory effect of CHF6523 in COPDsubjects will be evaluated.