Efficacy Study of Nebulized TD-4208 for Chronic Obstructive Pulmonary Disease (COPD)

A Phase 3, 12-week, Randomized, Double-blind Placebo-controlled Parallel Group Study of Nebulized TD-4208 in Subjects With Chronic Obstructive Pulmonary Disease

The purpose of this study is to measure the effectiveness and safety of TD 4208, an investigational drug being developed to treat people with moderate to very severe COPD, compared to placebo, a treatment without activity.

Inclusion Criteria:

• Subject is a male or female subject 40 years of age or older

Exclusion Criteria:

• Females who are pregnant, lactating, breast-feeding or planning to become pregnant during the study