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Life sciences · Interventional Study
ClinicalTrials.gov · October 26, 2026
No summary has been generated for this record yet. What follows is drawn from its source metadata only.
Interventional Study.
No findings were extractable from the material analysed.
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
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Registry record from ClinicalTrials.gov (NCT07536178). This is a study registration, not published results. Lead sponsor: University of British Columbia. Recruitment status: RECRUITING. Phase: NA. Study type: INTERVENTIONAL. Enrollment: 24 participants (ESTIMATED). Conditions: Asthma, Chronic Obstructive Pulmonary Disease (COPD), Lung Cancer. Interventions: OTHER: Woodsmoke (Lodgepole Pine) exposure; OTHER: Filtered air exposure. Primary outcome measures: Effects of PM2.5 exposures and concentration on exhaled nitric oxide. , Comparison of the different arms over the span of 4 months.; Effects of PM2.5 exposures and concentration on Cambridge Neuropsychological Test Automated Battery (CANTAB) , Comparison of the different arms over the span of 4 months.. Brief summary: Wildfire smoke (WFS) is the leading climate-related risk in Canada and the main source of harmful air pollution. While short-term breathing problems caused by smoke are well known, there is limited knowledge on how repeated exposure contributes to long-term lung disease. This study is a controlled human exposure to varying concentrations of WFS in a safe setting. By comparing the effects of different concentrations, this research will improve understanding of health impacts, identify who may be most vulnerable to exposures, and explore biological changes that could lead to chronic illness.