Summary:
This study is for people with moderate to very severe COPD, and a history of COPD exacerbations. The purpose of this study is to see if the investigational drugs have an effect on the rate of COPD exacerbations (worsening of COPD symptoms).
Qualified Participants Must:
Have COPD
Using a bronchodilator for COPD
Have seen a doctor for worsening of COPD symptoms in the last year
Be a current or former smoker with a history of at least 10 pack-years of cigarette smoking