NCT00438646

Brief 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). ...

Trial Health

80
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2007

Completed
20 days until next milestone

First Submitted

Initial submission to the registry

February 21, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 22, 2007

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2008

Completed
Last Updated

August 25, 2009

Status Verified

November 1, 2008

Enrollment Period

1.8 years

First QC Date

February 21, 2007

Last Update Submit

August 24, 2009

Conditions

Keywords

AllergyAsthmaEczemaHay FeverEpidemiology

Eligibility Criteria

Age6 Years - 11 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Aged 6-11 years.
  • Child is presenting to the UNC-CH School of Dentistry for a scheduled appointment.
  • Sibling has not been enrolled.
  • Parent consents to child's participation.
  • Parent is willing to provide answers to a questionnaire.
  • Child assents to the study.
  • Child is willing and able to provide a usable saliva sample.

You may not qualify if:

  • Child is unwilling or unable to provide a usable saliva sample.
  • Parent or child is non-English speaking.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, United States

Location

Related Publications (3)

  • Mannino DM, Homa DM, Akinbami LJ, Moorman JE, Gwynn C, Redd SC. Surveillance for asthma--United States, 1980-1999. MMWR Surveill Summ. 2002 Mar 29;51(1):1-13.

    PMID: 12420904BACKGROUND
  • Arbes SJ Jr, Gergen PJ, Elliott L, Zeldin DC. Prevalences of positive skin test responses to 10 common allergens in the US population: results from the third National Health and Nutrition Examination Survey. J Allergy Clin Immunol. 2005 Aug;116(2):377-83. doi: 10.1016/j.jaci.2005.05.017.

    PMID: 16083793BACKGROUND
  • Liu AH, Murphy JR. Hygiene hypothesis: fact or fiction? J Allergy Clin Immunol. 2003 Mar;111(3):471-8. doi: 10.1067/mai.2003.172.

    PMID: 12642824BACKGROUND

MeSH Terms

Conditions

AsthmaRhinitisEczemaRespiratory SoundsHypersensitivityRhinitis, Allergic, Seasonal

Condition Hierarchy (Ancestors)

Bronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, ImmediateImmune System DiseasesRespiratory Tract InfectionsInfectionsNose DiseasesOtorhinolaryngologic DiseasesDermatitisSkin DiseasesSkin and Connective Tissue DiseasesSkin Diseases, EczematousSigns and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and SymptomsRhinitis, Allergic

Study Design

Study Type
observational
Time Perspective
PROSPECTIVE
Sponsor Type
NIH

Study Record Dates

First Submitted

February 21, 2007

First Posted

February 22, 2007

Study Start

February 1, 2007

Primary Completion

December 1, 2008

Last Updated

August 25, 2009

Record last verified: 2008-11

Locations