Natural History of Chronic Urticaria

Completed

• Conditions: Chronic Urticaria

• Registration Number: NCT01284426
• Lead Sponsor: Mahidol University

Brief Summary

The purpose of this study is to examine the natural history of chronic urticaria in children and to identify the predictors for chronic urticaria remission.

Detailed Description

A Prospective cohort study of 92 children who were diagnosed with chronic urticaria to investigate the natural course of chronic urticaria and to identify predictors of disease remission.

Study Timeline

• Study Start: 2003-03
• Primary Completion: 2009-03
• Study Completion: 2009-03
• Study First Submitted: 2011-01-20
• Study First Submitted QC: 2011-01-25
• Study First Posted: 2011-01-27
• Results First Submitted: 2015-08-21
• Status Verified: 2015-12
• Results First Submitted QC: 2015-12-30
• Last Update Submitted: 2015-12-30
• Results First Posted: 2016-02-01
• Last Update Posted: 2016-02-01

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 94

Inclusion Criteria

• Children 4-15 years of age with the diagnosis of chronic urticaria who were attending the pediatric allergy clinic, Siriraj Hospital Mahidol University, Thailand, from March 2003 to March 2009.

Exclusion Criteria

• Children who had isolated physical urticaria, inability to be followed up, pregnancy, underlying diseases such as cardiovascular, hepatobiliary, and renal diseases.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Duration of Urticaria Until Remission Since Chronic Urticaria Was Diagnosed.	6 years	Remission rates at 1, 3 and 5 years after the onset of symptoms of chronic urticaria.; Description in details: Actually, this study have been started in March 2003 and finally done in March 2009, which would be totally 6 years. We eventually decided to report the rate of CU remissions only at 1, 3 and 5 years after the onset of symptoms because this would be the common interval time of CU symptoms that patients needed to know how long they should have those CU symptoms or how many of them would go away their symptoms within 1, 3 or 5 years. Another reason is that the remission rate of CU between 5 and 6 years was not significantly different, so it might not need to be reported.

Trial Locations

Locations (1)

Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Siriraj Hospital, Mahidol University; 🇹🇭 Bangkok, Thailand