NCT00241709

Brief Summary

The purpose of this study is to examine the effectiveness of approaches to correct for the effects of population stratification on case-control genetic association studies.

Trial Health

80
On Track

Trial Health Score

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

Enrollment
800

participants targeted

Target at 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2005

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

October 17, 2005

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 19, 2005

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2010

Completed
Last Updated

March 11, 2013

Status Verified

March 1, 2013

Enrollment Period

4.8 years

First QC Date

October 17, 2005

Last Update Submit

March 8, 2013

Conditions

Lung DiseasesAsthma

Eligibility Criteria

Age8 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Family-based cross sectional analysis

No eligibility criteria; this study will be using existing blood samples of Mexican and Puerto Rican asthmatics, their parents, and control participants who were recruited prior to the study.

Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.

Sponsors & Collaborators

Study Sites (1)

University of California, San Francisco

San Francisco, California, 94143, United States

Location

Biospecimen

Retention: SAMPLES WITH DNA

Retrospective genetic analysis of DNA; samples collected between 1998-2001

MeSH Terms

Conditions

Lung DiseasesAsthma

Condition Hierarchy (Ancestors)

Respiratory Tract DiseasesBronchial DiseasesLung Diseases, ObstructiveRespiratory HypersensitivityHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Study Officials

  • Esteban Gonzalez Burchard, MD

    University of California School of Medicine, San Francisco

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
FAMILY BASED
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 17, 2005

First Posted

October 19, 2005

Study Start

August 1, 2005

Primary Completion

June 1, 2010

Last Updated

March 11, 2013

Record last verified: 2013-03

Locations

US(1)