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Study identifier: NCT03615742 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Diesel Exhaust Induces Glucocorticoid Resistance

Condition: Exposure to Pollution · Glucocorticoid Resistance  ·  Sponsor: University of British Columbia

PhasePhase 4
Planned participants30
Who can joinAll sexes, 19 Years to 49 Years
Healthy volunteersNo

About this study

The investigators are studying the effects of exposure to diesel exhaust on lung inflammation in the presence and absence of an inhaled corticosteroid. Although data is mixed, studies show that asthmatics have increased lung inflammation and worse symptoms during periods of higher air pollution despite taking their anti-inflammatory corticosteroid medication. One possible reason is that air pollution exposure may decrease the ability of corticosteroids to combat inflammation. To test this volunteers will inhale either a placebo or a corticosteroid, before sitting in an exposure booth for 2 hours breathing either filtered air or diluted diesel exhaust. Samples will be collected before and after exposure to analyze the effects of budesonide and diesel exhaust exposure.

This description comes directly from the study's public registry record.

Talk to the study team

Parteek (PJ) Johal, BCS  ·  6048755132  ·  de.study@ubc.ca

Agnes CY Yuen, BSc  ·  6048754111  ·  agnes.yuen@ubc.ca

Always discuss trial participation with your own doctor first.

Locations (1)

University of British ColumbiaVancouver, British Columbia, CanadaRecruiting

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Source record: clinicaltrials.gov/study/NCT03615742