CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 20 enrolled
Drug / intervention
Filtered Air Exposure +1 moreother
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/NCT03234790
NCT03234790N/ACompleted

A Controlled Dose-Response Human Study to Develop a Signature of Occupational Diesel Exhaust Exposure

University of British Columbia·interventional·Posted Jul 31, 2017·Updated Nov 2, 2021

In Brief

A clinical study evaluating Filtered Air Exposure and Diesel Exhaust Exposure for Experimental. Completed, enrolled 20 participants across 1 site.

Detailed Summary

Strong scientific understanding of how emissions from diesel engines impact the lungs could improve policies and regulations protecting workers exposed to diesel exhaust. Accordingly, we are recruiting healthy volunteers who are non-smokers to participate in our study. Volunteers sit in a room for four hours and breathe either clean filtered air or air that contains pollution at various concentrations similar to occupational settings such as bus and ferry terminals where diesel engines are used. A respirologist assesses the volunteer's lung health and clinical samples are taken. We are equipped with advanced molecular biology tools to measure different molecules and compare samples from our volunteer subjects following exposure to clean air or diesel exhaust. Our research aim is to find a simple, clinically relevant strategy that can be used to measure the impact of diesel exhaust on workers' lung health. This knowledge will empower regulators, companies, and ultimately workers to better manage their health risks. Our research aims to provide specific data to help regulators to make informed decisions about the risks of diesel exhaust exposure.

Study Details

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

Timeline

N/ACompletedFinished
201820192020202120222023202420252026
First PostedJul 31, 2017
Enrollment StartSep 27, 2017
Primary CompletionJul 16, 2021
TodayJul 2, 2026
Enrollment to primary: 3.8 yearsPosted 8.9 years ago

Interventions

Filtered Air Exposureother

Exposure to Filtered air

Diesel Exhaust Exposureother

Diesel exposure to different concentrations at different times: 20, 50 and 150ug/m3