The Efficacy of Fluticasone Furoate/Vilanterol Versus (vs) Fluticasone Furoate on Asthma

Fluticasone furoate/vilanterol will be supplied as inhalation powder in ELLIPTA DPI. It will contain 2 strips with 30 blisters per strip. First strip will contain fluticasone furoate 100 mcg dry white powder blended with lactose. Second strip will contain vilanterol 25 mcg dry white powder blended with lactose and magnesium stearate.

Fluticasone furoate will be supplied as inhalation powder in ELLIPTA DPI. It will contain a single strip with 30 blisters, containing fluticasone furoate 100 mcg dry white powder blended with lactose.

Salbutamol/albuterol will be provided to subjects to use as rescue medication on an as-needed basis.