The study design is a double-blind, placebo controlled, randomized sequence, three-treatment, three-period, six-sequence, cross-over multiple-dose study to evaluate efficacy, pharmacokinetics, pharmacodynamics, and safety and tolerability of glycopyrronium bromide (bromide) in children from 6 to less than 12 years of age with asthma with forced expiratory volume in one second (FEV1) ≥60% and ≤ 90% of the predicted normal value for the participant.~This study will consist of 4 phases: Screening, Run-in, Treatment and Follow-up.~After the screening phase, participants will enter the Run-in Phase to further assess eligibility and those participants that meet all eligibility criteria will be randomized. Study treatment will be administered in addition to background asthma LABA+ICS controller therapy (salmeterol xinafoate 50µg/fluticasone propionate 100µg) from entering the run-in period, through to the end of the treatment phase, including the 2 wash-out periods. Participants will be randomized to one of 6 different sequences with an equal (1:1:1:1:1:1) randomization ratio. The Treatment Phase will last 10 weeks, and every sequence is divided in three treatment periods: Glycopyrronium bromide 12.5 µg, Glycopyrronium bromide 25µg or matching placebo dry powder in capsules for inhalation, via Breezhaler. Each treatment period lasts 2 weeks and 2 consecutive treatment periods are separated by a 2-week wash-out period. Participants who discontinue their study treatment prematurely will be required to return to the clinic for an Early Termination Visit. 30 days after last treatment date, a final telephone contact must be conducted for safety follow-up.~The total duration of the trial for a participant (from screening to follow up) is approximately 20 weeks including safety follow-up.
The purpose of this study is to characterize the bronchodilator effect, systemic exposure and safety/tolerability of two different doses of inhaled glycopyrronium, when compared to placebo. Outcome of this study will be used to determine the dose of inhaled glycopyrronium for the development of fixed dose combination indacaterol/mometasone/glycopyrronium (QVM149) for children aged 6 to less than 12 years old with moderate to severe asthma.