Search for a trial

Effect of inhalation of tiotropium once daily 18 mcg versus salmeterol twice daily 50 mcg on time to first exacerbation in COPD patients (a randomized, double-blind, double-dummy, parallel group, one year study)

To demonstrate superiority of tiotropium vs. salmeterol in reducing exacerbations which are an important patient outcome because they are a major cause of morbidity from COPD. In addition, they are associated with a more rapid decline in lung…

A 24-week treatment, multi-center, randomized, double-blind, double-dummy, parallel group study to compare Umeclidinium/Vilanterol, Umeclidinium, and Salmeterol in subjects with chronic obstructive pulmonary disease (COPD)

Primary:To compare the effect of UMEC/VI (62.5/25 mcg once daily) with UMEC (62.5 mcg once daily) on lung functionSecondary:To compare UMEC/VI, UMEC with salmeterol (50 mcg twice daily) on patient reported outcomes and on other COPD efficacy…