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NCT00013780 · ClinicalTrials.gov registry record
Ozone Exposure and Dose Delivered to Human Lungs
A clinical trial, sponsored by National Institute of Environmental Health Sciences (NIEHS).
- Completed
- Registry status
- 50
- Enrollment target
NCT00013780: Completed study, sponsored by National Institute of Environmental Health Sciences (NIEHS).
NCT00013780 is a clinical trial that has completed, run by National Institute of Environmental Health Sciences (NIEHS). The registered enrollment target is 50 participants. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00013780 has completed, sponsored by National Institute of Environmental Health Sciences (NIEHS).
- COMPLETED
- Registry status
- 50 participants
- Enrollment target
Study Summary
Ozone is an air pollutant formed in at ground level by the chemical reaction between oxygen and automobile emissions in the presence of sunlight. The objective of this research is to determine how lung size, chemical composition, and normal functioning of the respiratory system affect the amount of inhaled ozone that reaches internal sites of tissue irritation and damage. To infer the distribution of inhaled ozone within the respiratory system, measurements of ozone concentration and air flow are made just outside the nose and mouth of healthy subjects who breathe laboratory-generated, ozonated air for about one hour. Biochemical composition of respiratory mucus is then inferred from nasal washings made with salt water. The amount of ozone that a subject retains in one of these experiments is less than the daily exposure in a large city such as New York or Los Angeles.
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 50 participants |
| Start Date | 1998-07 |
| Est. Completion | 2003-06 |
What the finished NCT00013780 record still lists
NCT00013780 is an observational study that tracks outcomes without assigning an intervention. The registry caps enrollment at 50 participants, a relatively small participant target.
The record links to 0 conditions, and to 0 interventions.
NCT00013780 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00013780 about?
NCT00013780 is a clinical study titled "Ozone Exposure and Dose Delivered to Human Lungs". Ozone is an air pollutant formed in at ground level by the chemical reaction between oxygen and automobile emissions in the presence of sunlight. The objective of this research is to determine how lung size, chemical composition, and normal functioning of the respiratory system affect the amount of ...
What is the current status of trial NCT00013780?
This trial is currently completed. The enrollment target is 50 participants. The study started on 1998-07. Estimated completion is 2003-06.
Who is sponsoring clinical trial NCT00013780?
This trial is sponsored by National Institute of Environmental Health Sciences (NIEHS), which has 145 total clinical trials registered on ClinicalTrials.gov.
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