CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 18 enrolled
Drug / intervention
Salbutamol +4 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05087693
NCT05087693Phase 4Completed

Examining the Effect of Salbutamol Use in Asthma and/or Exercise Induced Bronchoconstriction Whilst Exercising in Ozone Air Pollution

University of British Columbia·interventional·Posted Oct 21, 2021·Updated Mar 14, 2025

In Brief

A Phase 4 clinical trial evaluating Salbutamol, Placebo medication, and 3 other interventions for Asthma and/or Exercise Induced Bronchoconstriction and Ozone Air Pollution. Completed, enrolled 18 participants across 1 site.

Detailed Summary

Salbutamol use is increased in areas with high levels of ozone pollution and the potential consequences of this are not well known. The purpose of this study is to examine the effect of salbutamol on lung function and inflammation in people with asthma and/or EIB exercising in ozone air pollution. To examine this, we are planning a randomized cross over trial where people with asthma and/or EIB complete sub maximal exercise in four conditions on four separate days. The four condition are: ozone + salbutamol, filtered air + salbutamol, ozone + placebo medication, and filtered air + placebo medication.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCanada
Collaborators--

Timeline

Phase 4CompletedFinished
20222023202420252026
First PostedOct 21, 2021
Enrollment StartNov 1, 2021
Primary CompletionAug 31, 2023
TodayJul 2, 2026
Enrollment to primary: 1.8 yearsPosted 4.7 years ago

Interventions

Salbutamoldrug

Inhaling 200ug of salbutamol

Placebo medicationdrug

Inhaling placebo medication

Ozoneother

Breathing 170ppb ozone

Filtered Airother

Breathing filtered air

Exerciseother

Cycling at 60% of VO2max on a cycle ergometer