Fig. 2From: Efficacy and safety of CHF6001, a novel inhaled PDE4 inhibitor in COPD: the PIONEER studyAdjusted mean pre-dose FEV1 change from baseline (ITT population). Data are adjusted mean and 95% confidence intervals. FEV1, forced expiratory volume in 1 s; ITT, intention-to-treat; BID, twice dailyBack to article page