Dataset from Characterization of 24 Hour Spirometry Profiles of Inhaled BI 1744 CL and Inhaled Foradil in Patients With Chronic Obstructive Pulmonary Disease

The study is intended to characterize the lung function profile of BI1744 in COPD patients where patients will perform pulmonary function tests at regular intervals for 24 hours at the end of a 6 week treatment period. Each patient will receive all four treatments.

本研究旨在明确BI1744在慢性阻塞性肺疾病（Chronic Obstructive Pulmonary Disease, COPD）患者中的肺功能特征。所有受试者将在6周治疗周期结束后的24小时内，按固定间隔开展肺功能检查。每名受试者均将接受全部四种治疗方案。