Study B2C112060: A Study of the Efficacy and Safety of Vilanterol Inhalation Powder in Adults and Adolescents With Persistent Asthma
Conditions
Interventions
- DRUG: Vilanterol
- DRUG: Salmeterol Inhalation Powder
- DRUG: Placebo Inhalation Powder NDPI
- DRUG: Placebo Inhalation Powder Diskus
Sponsor
GlaxoSmithKline