NCT00341653

Brief Summary

We propose to add a collection of buccal cells to a school-based cohort of 7th graders in Wuhan, a large industrial city in China. The cohort study is being conducted by the Wuhan Public Health and Anti-Epidemic Station (Li Yan MD, director and principal investigator). The cohort study is designed to look at several outcomes. One is initiation of smoking. The second is respiratory health in relation to active and passive smoking and other environmental exposures that are prevalent in Wuhan. The respiratory outcomes include changes in pulmonary function, asthma and other respiratory symptoms. Collection of buccal cells is a noninvasive method of obtaining DNA. The addition of a genetic sample will enable us to examine candidate gene associations for asthma and childhood respiratory illness within an interesting and well-characterized Chinese population. In addition, it provides the capability to examine gene environment interaction with respect to common environmental exposures in Wuhan. The ability to examine gene-environment interaction can help to identify relatively subtle effects of pollutants such as environmental tobacco smoke which is becoming a very common exposure due to the major increase in smoking among Chinese men. Other exposures of interest in Wuhan are indoor coal burning and high ambient exposures to particules, ozone and nitrogen oxides. The proposed study has been approved by the human subjects committee of the Wuhan Public Health and Anti-Epidemic Station....

Trial Health

87
On Track

Trial Health Score

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

Enrollment
5,051

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 1998

Longer than P75 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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 1998

Completed
7.6 years until next milestone

First Submitted

Initial submission to the registry

June 19, 2006

Completed
2 days until next milestone

First Posted

Study publicly available on registry

June 21, 2006

Completed
12.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

May 16, 2019

Completed
Last Updated

September 23, 2019

Status Verified

May 16, 2019

First QC Date

June 19, 2006

Last Update Submit

September 20, 2019

Conditions

Keywords

AsthmaPulmonary FunctionAir PollutionGenetic PolymorphismEnvironmental Tobacco Agents

Eligibility Criteria

Age12 Years - 13 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • th grade students enrolled at the Wuhan Public Health and Anti-Epidemic Station.
  • Consent signed by parent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Wuhan Public Health and Anti Epidemic Station

Wuhan, China

Location

MeSH Terms

Conditions

Asthma

Condition Hierarchy (Ancestors)

Bronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Study Officials

  • Stephanie London, M.D.

    National Institute of Environmental Health Sciences (NIEHS)

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 19, 2006

First Posted

June 21, 2006

Study Start

December 1, 1998

Study Completion

May 16, 2019

Last Updated

September 23, 2019

Record last verified: 2019-05-16

Locations