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. 2013 Feb 14;8:89–96. doi: 10.2147/COPD.S31209

Table 1.

Pivotal trials of 12 weeks in duration or longer

Reference Study Severity of COPD Study duration (weeks) Treatment arms
Feldman et al13 B2346, INLIGHT1 Moderate to severe 12 IND 150 μg (n = 211)
Placebo (n = 205)
Kornmann et al14 B2336, INLIGHT2 Moderate to severe 26 IND 150 μg (n = 330)
SAL 50 μg BID (n = 334)
Placebo (n = 335)
Dahl et al15 B2334, INVOLVE Moderate to severe 52 IND 300 (n = 437) or 600 μg (n = 428)
FOR 12 μg BID (n = 435)
Placebo (n = 432)
Donohue et al16 B2335S, INHANCE Moderate to severe 26 IND 150 (n = 416) or 300 μg
(n = 416)
Placebo (n = 418)
Open-label TIO 18 μg (n = 415)
Buhl et al17 B2350, INTENSITY Moderate to severe 12 IND 150 μg (n = 794)
TIO 18 μg (n = 799)
Korn et al18 B2349, INSIST Moderate to severe 12 IND 150 μg (n = 559)
SAL 50 μg BID (n = 562)
Chapman et al19 Study 2335SE, INDORSE
(extension of INHANCE)
Moderate to severe Additional 26
(total 52)
IND 150 or 300 μg
Placebo (n = 415)

Abbreviations: BID, twice daily; COPD, chronic obstructive pulmonary disease; FOR, formoterol; IND, indacaterol; SAL, salmeterol; TIO, tiotropium.