A Dose Ranging Study of Arformoterol Given Once Daily Compared to Arformoterol Given Twice Daily in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

This study is a double-blind, repeat-dose, randomized, multicenter, two-part, parallel-group, dose-ranging study of arformoterol and placebo in the treatment of subjects with COPD. Approximately 215 subjects will be randomized in this study. Study participation will consist of a total of eight (8) study visits over approximately ten (10) weeks for each subject. This study was previously posted by Sepracor Inc. In October 2009, Sepracor Inc. was acquired by Dainippon Sumitomo Pharma., and in October 2010, Sepracor Inc's name was changed to Sunovion Pharmaceuticals Inc.