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Oral Bacteria and Allergic Disease in Children
NCT00438646 · View on ClinicalTrials.gov ↗
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 |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT00438646
The ClinicalTrials.gov registry entry for NCT00438646 describes a study currently listed as completed. It is categorized as an unspecified phase, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 60 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is National Institute of Environmental Health Sciences (NIEHS), which has 75 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 5 conditions, with Asthma appearing as the primary indexed condition, and to 0 interventions. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT00438646 reports 1 study location spanning 1 distinct geographic area — top geographies include North Carolina. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
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. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
Who is sponsoring clinical trial NCT00438646?
This trial is sponsored by National Institute of Environmental Health Sciences (NIEHS), which has 75 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
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.
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