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NCT00438646 · ClinicalTrials.gov registry record
Oral Bacteria and Allergic Disease in Children
A clinical trial of Asthma and Eczema, sponsored by National Institute of Environmental Health Sciences (NIEHS).
- Completed
- Registry status
- 60
- Enrollment target
- 1
- Study location
NCT00438646: Completed study of Asthma and Eczema, sponsored by National Institute of Environmental Health Sciences (NIEHS).
NCT00438646 is a study of Asthma and Eczema that has completed, run by National Institute of Environmental Health Sciences (NIEHS). The registered enrollment target is 60 participants, below the 1,563-participant average among 374 other Asthma trials with a reported enrollment target (96% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00438646, a study of Asthma and Eczema, has completed, sponsored by National Institute of Environmental Health Sciences (NIEHS).
- COMPLETED
- Registry status
- 60 participants
- Enrollment target
- 1
- Study location
Study Summary
This study will see if bacteria differ between children who have allergies or asthma and children who do not have allergies or asthma. Previous research suggests that some bacteria may protect against allergies and asthma. This study may provide more information on why some children develop allergies and asthma. Patients at the University of North Carolina-Chapel Hill School of Dentistry who are between 6 and 11 years of age may be eligible for this study. Parents of participating children complete a questionnaire about the child and the child's health. The child provides a saliva sample by chewing a small piece of wax and spitting in a cup. The saliva sample is analyzed in the laboratory for bacteria, yeast and antibodies (substances the body produces to fight germs). ...
Conditions Studied
Study Locations (1)
North Carolina
- University of North Carolina at Chapel Hill - Chapel Hill
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 60 participants |
| Start Date | 2007-02 |
What the finished NCT00438646 record still lists
NCT00438646 is an observational study that tracks outcomes without assigning an intervention. The registry caps enrollment at 60 participants, a relatively small participant target, below the 1,563-participant average among 374 other Asthma trials with a reported enrollment target (96% lower).
The record links to 5 conditions, with Asthma appearing as the primary indexed condition, and to 0 interventions.
NCT00438646 reports a single indexed study location in North Carolina.
Frequently Asked Questions
What is clinical trial NCT00438646 about?
NCT00438646 is a clinical study titled "Oral Bacteria and Allergic Disease in Children". This study will see if bacteria differ between children who have allergies or asthma and children who do not have allergies or asthma. Previous research suggests that some bacteria may protect against allergies and asthma. This study may provide more information on why some children develop allergie...
What is the current status of trial NCT00438646?
This trial is currently completed. The enrollment target is 60 participants. The study started on 2007-02.
What conditions does trial NCT00438646 study?
This clinical trial studies the following conditions: Asthma, Eczema, Hypersensitivity, Rhinitis, Respiratory Sounds.
Who is sponsoring clinical trial NCT00438646?
This trial is sponsored by National Institute of Environmental Health Sciences (NIEHS), which has 145 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT00438646 being conducted?
This trial has 1 study location across North Carolina. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
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Where NCT00438646's enrollment target sits among peer trials
60 248th of 374 higher than 121 of 374 other Asthma trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Asthma 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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