Conditions: Asthma
Keywords: fluticasone propionate multidose dry powder inhaler
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 787
Healthy volunteers: no

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

Study drug and placebo was 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.

Detailed description:

Arms:
arm 1: Patients 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.

Albuterol/salbutamol hydrofluoroalkane (HFA) metered dose inhaler (MDI) was supplied to participants throughout the study to be used as needed as a rescue medication. arm 2: Patients took 1 inhalation using a multidose dry powder inhaler (MDPI) twice a day of fluticasone propionate 50 mcg (for a total daily dose of 100 mcg) and salmeterol 12.5 mcg (for a total daily dose of 25 mcg) for 12 weeks.

Albuterol/salbutamol hydrofluoroalkane (HFA) metered dose inhaler (MDI) was supplied to participants throughout the study to be used as needed as a rescue medication. arm 3: Patients 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 for 12 weeks.

Albuterol/salbutamol hydrofluoroalkane (HFA) metered dose inhaler (MDI) was supplied to participants throughout the study to be used as needed as a rescue medication. arm 4: Patients took 1 inhalation using a multidose dry powder inhaler (MDPI) twice a day of fluticasone propionate 50 mcg for a total daily dose of 100 mcg for 12 weeks.

Albuterol/salbutamol hydrofluoroalkane (HFA) metered dose inhaler (MDI) was supplied to participants throughout the study to be used as needed as a rescue medication. arm 5: The placebo multidose dry powder inhaler 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).

Albuterol/salbutamol hydrofluoroalkane (HFA) metered dose inhaler (MDI) was supplied to participants throughout the study to be used as needed as a rescue medication.

Interventions: intervention 1: FS MDPI intervention 2: Fp MDPI intervention 3: Placebo MDPI intervention 4: albuterol/salbutamol intervention 5: Beclomethasone dipropionate
Intervention descriptions: intervention 1: FS MDPI is an inhalation-driven multidose dry powder inhaler (MDPI) containing fluticasone propionate (Fp) and salmeterol xinafoate (Sx) 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 100/12.5 mcg Fp/Sx or 50/12.5 mcg Fp/Sx in the morning and evening for a total daily dose of 200/25 mcg or 100/25 mcg Fp/Sx.

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 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 100 mcg or 50 mcg of Fp one inhalation twice a day for a total daily dose of 200 mcg or 100 mcg.

Participants were instructed to rinse their mouth and expectorate (not swallow) after study drug administration. intervention 3: Placebo administered via a multidose dry powder inhaler (MDPI) one puff in the morning and one puff in the evening for 12 weeks. intervention 4: A short-acting β2-adrenergic agonists (SABA), albuterol/salbutamol 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). intervention 5: QVAR (beclomethasone dipropionate) 40 mcg inhalation aerosol is a pressurized MDI that contains a Food and Drug Administration (FDA)-approved formulation of beclomethasone dipropionate. Patients took 1 puff twice a day from open-label QVAR 40 mcg hydrofluoroalkane (specifically, HFA-134a) metered-dose inhaler (MDI) for the duration of the Run-in Period (14-21 days) and prior to randomization. A clinically equivalent dose of inhaled corticosteroid (ICS) was substituted in countries where QVAR 40 mcg was not available.

Protocol document: