This is a 12 week treatment study to evaluate the safety and efficacy of once daily inhaled medication compared to a once daily inhaled tiotropium 18mcg and placebo treatment for patients with COPD.
Major Inclusion/Exclusion Criteria:
- Age 40 or greater with a diagnosis of COPD
- Current or ex-smoker with a history of >10 pack years
- Must not have a history of asthma