Conditions: Asthma
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 364
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the safety of Albuterol Spiromax® over 52 weeks during two dosing periods: (1) a 12-week, double-blind, placebo-controlled QID dosing period followed by (2) a 40-week, open-label PRN dosing period, and to evaluate Albuterol Spiromax® device performance through the life of the device during the study.

Detailed description:

Arms:
arm 1: During the 12-week double-blind period, participants take 2 inhalations of placebo MDPI (multi-dose dry powder inhaler), four times a day (QID) at approximately 7:00 AM, 12:00 PM, 5:00 PM, and bedtime.

The double-blind period is followed by a 40-week open-label period in which all study participants take albuterol MDPI 90 micrograms/inhalation, 2 inhalations every 4-6 hours as needed (PRN) and, if applicable, 2 inhalations 15-30 minutes prior to sports/exercise. arm 2: During the 12-week double-blind period, participants take 2 inhalations of albuterol MDPI (multi-dose dry powder inhaler or Spiromax®) 90 mcg/inhalation, four times a day (QID) at approximately 7:00 AM, 12:00 PM, 5:00 PM, and bedtime for a total daily dose of 720 micrograms per day.

The double-blind period is followed by a 40-week open-label period in which all study participants take albuterol MDPI 90 micrograms/inhalation, 2 inhalations every 4-6 hours as needed (PRN) and, if applicable, 2 inhalations 15-30 minutes prior to sports/exercise.

Interventions: intervention 1: Placebo MDPI intervention 2: Albuterol MDPI
Intervention descriptions: intervention 1: Placebo MDPI (multi-dose dry powder inhaler) to match the active intervention. intervention 2: Albuterol MDPI (multi-dose dry powder inhaler or Spiromax®) 90 mcg/inhalation.

Protocol document: