We investigated the efficacy and safety of dual bronchodilation with
QVA149 versus its monocomponents
indacaterol and
glycopyrronium,
tiotropium and placebo in patients with moderate-to-severe
chronic obstructive pulmonary disease (
COPD). This was a multicentre, randomised, double-blind, placebo- and active-controlled, 26-week trial. Patients (n = 2144) were randomised (2:2:2:2:1) to receive once-daily
QVA149 (
indacaterol 110 μg/
glycopyrronium 50 μg),
indacaterol 150 μg,
glycopyrronium 50 μg, open-label
tiotropium 18 μg or placebo. The primary end-point was trough forced expiratory volume in 1 s (FEV1) at week 26 for
QVA149 versus its monocomponents. Secondary end-points included dyspnoea, health status, rescue medication use and safety. Trough FEV1 at week 26 was significantly improved (p<0.001) with
QVA149 compared with
indacaterol and
glycopyrronium (least squares mean (LSM) differences 0.07 L and 0.09 L, respectively),
tiotropium and placebo (LSM differences 0.08 L and 0.20 L, respectively); these beneficial effects were sustained throughout the 26-week study.
QVA149 significantly improved dyspnoea and health status versus placebo (p<0.001 and p = 0.002, respectively) and
tiotropium (p = 0.007 and p = 0.009, respectively) at week 26. All treatments were well tolerated. Dual bronchodilation with once-daily
QVA149 demonstrated superior and clinically meaningful outcomes versus placebo and superiority versus treatment with a single
bronchodilator, with a safety and tolerability profile similar to placebo, supporting the concept of fixed-dose long-acting
muscarinic antagonist/long-acting β2-agonist combinations for the treatment of
COPD.