NCT01319292

Brief Summary

Asthma is the most common chronic respiratory disease in children and has much effect on their life and study, which leads to huge economic burden and pressure to the whole families. Some children will develop into adult patients so that asthma can be the life-long vigorous trouble. In recent years, the prevalence rate of children asthma is increasingly going up worldwide. The prevalence rate in last 12 months reported in USA, United Kingdom, Australia, New Zealand was between 12% to 30%. Center for Asthma Prevention and Education of Capital Institute of Pediatrics investigated the national asthma prevalence in 900 thousands children in 27 provinces and cities, which average rate was 0.11% to 2.03% in 1990. In 2000, we investigated it again in 31 provinces(43 cities) and the average national children asthma prevalence rate was 1.97%(0.25% to 4.63%) which was much higher than that in 1990.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
20,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Apr 2011

Typical duration for all trials

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

First Submitted

Initial submission to the registry

March 17, 2011

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 21, 2011

Completed
11 days until next milestone

Study Start

First participant enrolled

April 1, 2011

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2013

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2014

Completed
Last Updated

August 4, 2014

Status Verified

August 1, 2014

Enrollment Period

2 years

First QC Date

March 17, 2011

Last Update Submit

August 1, 2014

Conditions

Asthma

Outcome Measures

Primary Outcomes (1)

  • prevalence of asthma

    Apr 2013

Secondary Outcomes (1)

  • prevalence of allergic rhinitis

    Apr 2013

Study Arms (2)

Asthma children

children with asthma symptoms through screening

normal children

children without symptoms of asthma

Eligibility Criteria

AgeUp to 14 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodProbability Sample
Study Population

children age from 0 to 14 years in big cities in China

You may qualify if:

  • children age from 0 to 14 years

You may not qualify if:

  • none

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Asthma

Condition Hierarchy (Ancestors)

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

Study Officials

  • YuZhi Chen, professor

    Capital Institute of Pediatrics, China

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
ECOLOGIC OR COMMUNITY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

March 17, 2011

First Posted

March 21, 2011

Study Start

April 1, 2011

Primary Completion

April 1, 2013

Study Completion

April 1, 2014

Last Updated

August 4, 2014

Record last verified: 2014-08