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NCT02857283 · ClinicalTrials.gov registry record · NA
Human Biological Responses to Low Level Ozone
A NA study, sponsored by University of North Carolina, Chapel Hill.
- Completed
- Registry status
- NA
- Development phase
- 15
- Enrollment target
NCT02857283: Completed NA study, sponsored by University of North Carolina, Chapel Hill.
NCT02857283 is a NA study that has completed, run by University of North Carolina, Chapel Hill. The registered enrollment target is 15 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT02857283, a NA study, has completed, sponsored by University of North Carolina, Chapel Hill.
- COMPLETED
- Registry status
- NA
- Development phase
- 15 participants
- Enrollment target
Study Summary
To investigate if low level ozone exposure will cause measurable inflammation in nasal cells.
Primary Outcome
Participants will be exposed to either filtered air (FA), then ozone (O3), or O3, then FA. Nasal lavage fluid (NLF) will be collected from participants at a baseline visit within two weeks prior to each exposure, and at the following time points for each exposure: immediately after exiting the exposure chamber, and at 24 hours after the exposure. The % PMN as a percentage of total inflammatory cells (total of monocytes and macrophages, PMN, eosinophils, basophils, lymphocytes, and bronchial epi
Interventions
- OTHER Ozone
- OTHER Filtered Air
- DEVICE Health and Exposure Tracker (HET)
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 15 participants |
| Start Date | 2017-04-22 |
| Est. Completion | 2019-07-01 |
| Phase | NA |
What the finished NCT02857283 record still lists
NCT02857283 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 15 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower).
The record links to 0 conditions, and to 3 interventions - of which Ozone is the first listed.
NCT02857283 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT02857283 about?
NCT02857283 is a clinical study titled "Human Biological Responses to Low Level Ozone". To investigate if low level ozone exposure will cause measurable inflammation in nasal cells.
What is the current status of trial NCT02857283?
This trial is currently completed. It is a NA study. The enrollment target is 15 participants. The study started on 2017-04-22. Estimated completion is 2019-07-01.
What interventions are being tested in trial NCT02857283?
The interventions under investigation include: Ozone (OTHER), Filtered Air (OTHER), Health and Exposure Tracker (HET) (DEVICE).
Who is sponsoring clinical trial NCT02857283?
This trial is sponsored by University of North Carolina, Chapel Hill, which has 1,109 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT02857283's enrollment target sits among peer trials
15 1881st of 2000 higher than 92 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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