Conditions: Asthma
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 882
Healthy volunteers: no

Brief summary:
The primary objective of this study was to evaluate the efficacy of fluticasone propionate (Fp) multidose dry powder inhaler (MDPI) and fluticasone propionate/salmeterol xinafoate (FS) MDPI when administered over 12 weeks in patients 12 years of age and older with persistent asthma.

Detailed description:
Study drug and placebo were supplied in Teva multidose dry powder inhaler (MDPI) devices and provided for participants to use at home. Participants performed spirometry at every visit. Each participant was given a diary at each visit for use until the next visit. Rescue medication (albuterol/salbutamol) was dispensed at each visit, if needed, as determined by the investigational center personnel.

Arms:
arm 1: Participants took 1 inhalation using a multidose dry powder inhaler (MDPI) twice a day of fluticasone propionate 200 mcg (for a total daily dose of 400 mcg) and salmeterol 12.5 mcg (for a total daily dose of 25 mcg) for 12 weeks. arm 2: Participants took 1 inhalation using a multidose dry powder inhaler (MDPI) twice a day of fluticasone propionate 100 mcg (for a total daily dose of 200 mcg) and salmeterol 12.5 mcg (for a total daily dose of 25 mcg) for 12 weeks. arm 3: Participants took 1 inhalation using a multidose dry powder inhaler (MDPI) twice a day of fluticasone propionate (Fp) for a total daily dose of 400 mcg for 12 weeks. arm 4: Participants took 1 inhalation using a multidose dry powder inhaler (MDPI) twice a day of fluticasone propionate (Fp) for a total daily dose of 200 mcg for 12 weeks. arm 5: Participants took 1 inhalation using a multidose dry powder inhaler (MDPI) twice a day of placebo for 12 weeks.

Interventions: intervention 1: FS MDPI intervention 2: Fp MDPI intervention 3: Placebo MDPI intervention 4: Albuterol/salmeterol HFA MDI
Intervention descriptions: intervention 1: 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.

During the treatment period, participants were randomized to either fluticasone propionate/salmeterol MDPI 200/12.5 mcg or fluticasone propionate/salmeterol MDPI 100/12.5 mcg twice a day for a total daily dose of 200/25 mcg or 400/25 mcg.

Participants were instructed to rinse their mouth and expectorate (not swallow) after study drug administration. intervention 2: Fp MDPI is an inhalation-driven multidose dry powder inhaler (MDPI) containing fluticasone propionate (Fp) 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.

During the treatment period, participants were randomized to either 200 mcg or 100 mcg of Fp one inhalation twice a day for a total daily dose of 400 mcg or 200 mcg.

Participants were instructed to rinse their mouth and expectorate (not swallow) after study drug administration. intervention 3: The placebo multidose dry powder inhaler (MDPI) was identical to the devices used to deliver active drug, and indistinguishable from the active treatments. Patients took one inhalation twice a day (approximately 12 hours apart). Patients were instructed to rinse their mouth and expectorate (not swallow) after study drug administration. intervention 4: Albuterol/salmeterol hydrofluoroalkane (HFA) metered dose inhaler (MDI) was supplied to participants throughout the study to be used as needed as a rescue medication.

Protocol document: