Table 1.

Study designs.

Study name	ClinicalTrials.gov registration	Treatment weeks	Treatment arms	Randomized patients
Monotherapy
ACCORD I	NCT00891462	12	Aclidinium 400 μg BID, Aclidinium 200 μg BID, Placebo	561
ACCORD II	NCT01045161	12	Aclidinium 400 μg BID, Aclidinium 200 μg BID, Placebo	544
ATTAIN	NCT01001494	24	Aclidinium 400 μg BID, Aclidinium 200 μg BID, Placebo	828
Combination therapy
ACLIFORM	NCT01462942	24	Aclidinium/formoterol 400/12 μg BID, Aclidinium/formoterol 400/6 μg BID, Aclidinium 400 μg BID, Formoterol 12 μg BID, Placebo	1,729
AUGMENT	NCT01437397	24	Aclidinium/formoterol 400/12 μg BID, Aclidinium/formoterol 400/6 μg BID, Aclidinium 400 μg BID, Formoterol 12 μg BID, Placebo	1,692

BID, twice-daily.