Conditions: Asthma
Keywords: Albuterol Spiromax ProAir HFA albuterol sulfate
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 61
Healthy volunteers: no

Brief summary:
This is a multicenter, randomized, double-blind, double-dummy, placebo-controlled, single-dose, 5-treatment, 5-period, 5-way crossover study in pediatric patients with persistent asthma. The primary purpose of this study is to compare the efficacy and safety of Albuterol Spiromax with that of ProAir HFA in pediatric asthma patients at 2 delivered dose levels equivalent to 90 mcg and 180 mcg of albuterol base.

Detailed description:
The study consists of a screening visit (SV) followed by up to 16 days by a treatment period comprising 5 visits (TV1-TV5). The treatment period visits will each be separated by a washout period lasting 2-7 days. During each treatment period visit, the forced expiratory volume in 1 second (FEV1) will be determined at 30 minutes and again immediately prior to the commencement of study medication administration, and 5, 15, 30, 45, 60, 120, 180, 240, 300, and 360 minutes after completion of study medication administration.

Arms:
arm 1: At each treatment visit, participants receive 1 actuation from each of 4 pre-arranged device combinations comprising 2 dry powder inhalers (DPIs) and 2 metered-dose inhalers (MDIs) in order to maintain the study blind.

In this arm, one of the DPIs contains Albuterol Spiromax 90 mcg; the other three devices contained placebo. arm 2: At each treatment visit, participants receive 1 actuation from each of 4 pre-arranged device combinations comprising 2 dry powder inhalers (DPIs) and 2 metered-dose inhalers (MDIs) in order to maintain the study blind.

In this arm, both of the DPIs contain Albuterol Spiromax 90 mcg for a total dose of 180 mcg; the MDIs contained placebo. arm 3: At each treatment visit, participants receive 1 actuation from each of 4 pre-arranged device combinations comprising 2 dry powder inhalers (DPIs) and 2 metered-dose inhalers (MDIs) in order to maintain the study blind.

In this arm, one of the MDIs contains ProAir HFA 90 mcg; the other three devices contained placebo. arm 4: At each treatment visit, participants receive 1 actuation from each of 4 pre-arranged device combinations comprising 2 dry powder inhalers (DPIs) and 2 metered-dose inhalers (MDIs) in order to maintain the study blind.

In this arm, both of the MDIs contain ProAir HFA 90 mcg for a total dose of 180 mcg; the DPIs contained placebo. arm 5: At each treatment visit, participants receive 1 actuation from each of 4 pre-arranged device combinations comprising 2 dry powder inhalers (DPIs) and 2 metered-dose inhalers (MDIs) in order to maintain the study blind. In this arm, all devices contain placebo.

Interventions: intervention 1: Albuterol Spiromax intervention 2: ProAir HFA intervention 3: Placebo
Intervention descriptions: intervention 1: Albuterol Spiromax® Inhalation Aerosol contains 90 mcg albuterol per actuation orally inhaled in a single dose dry powder inhaler (DPI). Participants took doses at either the 90 or 180 mcg levels. If the higher level, two DPIs filled with Albuterol Spiromax® were used. intervention 2: ProAir® HFA Inhalation Aerosol contains 90 mcg albuterol per actuation orally inhaled in a single dose metered dose inhaler (MDI). Participants took doses at either the 90 or 180 mcg levels. If the higher level, two MDIs filled with ProAir HFA were used. intervention 3: Single dose MDIs and DPIs containing placebo taken as a single orally-inhaled actuation each.

Protocol document: