GlaxoSmithKline
The primary purpose of this study is to evaluate the effects of Fluticasone Furoate (FF)/ Umeclidinium (UMEC)/ Vilanterol (VI) on lung function compared with FF/VI after 24 weeks of treatment.
Inclusion Criteria: * Participant must be 12 to 17 years of age (inclusive), at the time of signing the informed consent/assent. * Participants who have a diagnosis of asthma as defined by the National Institutes of Health \[NIH, 2020\] at least 1 year prior to Visit 0. * Participants who have required daily Inhaled corticosteroids (ICS)/ Long-Acting Beta2-Agonist (LABA) treatment for at least 12 weeks prior to Visit 0 with no changes to maintenance asthma medications during the 6 weeks immediately prior to Visit 0 (including no changes to a stable total ICS dose of \>250 to \<=500 microgram…
FF/UMEC/VI will be administered.
FF/UMEC/VI and FF/VI will be administered via ELLIPTA inhaler
FF/VI will be administered.