Scientists investigate Ozone's impact on lung defenses
NCT ID NCT05794087
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at how breathing in ozone, a common air pollutant, affects immune cells in the lungs. Healthy volunteers will breathe clean air and low-level ozone on separate days, then provide sputum samples to measure cell activity. The goal is to better understand lung injury from air pollution.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 120 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2023
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 40 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Exclusion Criteria: * Cardiovascular disease * Respiratory disease * Recent (within 4 weeks) respiratory or COVID-19 symptoms * Diabetes * Pregnancy * HIV Infection * History of smoking within the past 5 years. * Orthopedic or rheumatologic conditions which would interfere with cycle use * Inability to produce a sputum plug at screening * Daily use of antioxidant supplements, excluding those in a multivitamin. These supplements include Vitamin C or E, selenium, beta-carotene, lycopene, lutein, zeaxanthin and ginkgo biloba. Supplements taken less frequently but at least once a week will be reviewed by the principal investigator for eligibility determination.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Rutgers - EOHSI
RECRUITINGPiscataway, New Jersey, 08854, United States
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