Conditions: Asthma
Keywords: GW642444 Vilanterol Asthma Fluticasone Furoate
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 612
Healthy volunteers: no

Brief summary:
The purpose of the study is to compare the efficacy and safety of fluticasone furoate/vilanterol (GW642444) inhalation powder and fluticasone furoate inhalation powder both administered once daily in adolescent and adult subjects 12 years of age and older with persistent bronchial asthma over a 12 week treatment period.

Detailed description:

Arms:
arm 1: Fluticasone furoate/Vilanterol inhalation powder once daily for 12 weeks arm 2: Fluticasone furoate inhalation powder once daily for 12 weeks arm 3: Placebo inhalation powder once daily for 12 weeks

Interventions: intervention 1: Fluticasone furoate/Vilanterol Inhalation Powder intervention 2: Fluticasone Furoate Inhalation Powder intervention 3: Placebo Inhaltion Powder
Intervention descriptions: intervention 1: Fluticasone furoate/Vilanterol Inhalation Powder inhaled orally once daily for 12 weeks intervention 2: Fluticasone Furoate Inhalation Powder inhaled orally once daily for 12 weeks intervention 3: Placebo Inhaltion Powder inhaled orally once daily for 12 weeks

Protocol document: