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Mean change from baseline.
Notes: (A) Morning predose, prebronchodilator forced expiratory volume in 1 second (FEV1; primary efficacy end point) and (B) post-bronchodilator FEV1. Data are mean changes from baseline to treatment average for the main analysis. Based on the full-analysis set, which excluded patients who did not receive treatment and patients with GCP violations.
Abbreviations: BID, twice daily; QD, once daily; GCP, Good Clinical Practice.
