At a glance
ClinicalIndex Comparison RecordStandardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Effect of Positive Airway Pressure on Reducing Airway Reactivity in Patients With Asthma
In Brief
A clinical study evaluating Continuous Positive Airway Pressure device (Resmed, Swift, Mirage) for Asthma. Completed, enrolled 209 participants across 18 sites.
Detailed Summary
The CPAP trial is a 3-arm parallel design randomized sham-controlled trial. Participants are randomly assigned in equal allocation to one of three treatments: CPAP 10 cm water (H₂O) (high) vs. CPAP 5 cm H₂O (medium) vs. CPAP Sham (less than 1 cm H₂O, Low). The treatment period is 12 weeks with airways reactivity assessed at baseline, 6 and 12 weeks of treatment and after a 2 week washout.
Study Details
Timeline
Interventions
Continuous Positive Airway Pressure device (Resmed, Swift, Mirage): Participants will be randomized to one of three pre-set CPAP pressures: less than 1 cm water (H₂O), 5 cm H₂O or 10 cm H₂O. They will be instructed to use the CPAP device every night for 12 weeks. Methacholine airways reactivity will be measured at the end of these 12 weeks and again after a 2-week washout period, 14 weeks after randomization.