Dose Ranging Study of the Salmeterol Component of Fluticasone /Salmeterol Spiromax Compared to Fluticasone Spiromax and Advair Diskus in Asthma Subjects

"Fp MDPI is an inhalation-driven multidose dry powder inhaler (MDPI) containing fluticasone propionate dispersed in a lactose monohydrate excipient and contained within a reservoir. A metered dose of drug is delivered to a dose cup via an air pulse activated when the cap is opened.~Fp at 100 mcg was an active comparator (single dose). Further, participants were instructed to administer two inhalations of Fp MDPI 50 mcg twice daily (100 mcg total dose) during the Run-in (to replace the participant's current inhaled corticosteroid) and Washout Periods between treatments."

FS MDPI is an inhalation-driven multidose dry powder inhaler (MDPI) containing fluticasone propionate and salmeterol xinafoate dispersed in a lactose monohydrate excipient and contained within a reservoir. A metered dose of drug is delivered to a dose cup via an air pulse activated when the cap is opened. The fluticasone propionate component was a fixed dose of 100 mcg. The salmeterol xinofoate dosage varied: 6.25, 12.5, 25 or 50 mcg.

ADVAIR DISKUS (100/50 mcg fluticasone propionate/salmeterol xinafoate) consists of a dry powder formulation of fluticasone propionate and salmeterol xinafoate in a lactose excipient. The dry powder is contained within individual blisters on a double foil strip within the device. Activation of the device opens a single blister of medication which is then dispersed into the air-stream by patient inhalation.

Albuterol (Pro-Air) hydrofluoroalkane (HFA) metered dose inhaler (MDI), was provided to be used as needed for the relief of asthma symptoms during both the run-in and treatment periods (to replace the subject's current rescue medication).