Natural History of Chronic Urticaria (NHCU)
This study has been completed.
Information provided by (Responsible Party):
Orathai Piboonpocanun, Mahidol University
First received: January 20, 2011
Last updated: December 30, 2015
Last verified: December 2015
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.
||Observational Model: Cohort
Time Perspective: Prospective
||The Natural History of Chronic Urticaria in Childhood: A Prospective Study
Primary Outcome Measures:
- Duration of Urticaria Until Remission Since Chronic Urticaria Was Diagnosed. [ Time Frame: 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.
| Study Start Date:
| Study Completion Date:
| Primary Completion Date:
||March 2009 (Final data collection date for primary outcome measure)
Chronic urticaria, Natural history
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.
|Ages Eligible for Study:
||4 Years to 15 Years (Child)
|Sexes Eligible for Study:
|Accepts Healthy Volunteers:
Pediatric allergy clinic, Siriraj Hospital Mahidol University, Thailand, Children 4-15 years of age with chronic urticaria.
- 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.
- Children who had isolated physical urticaria, inability to be followed up, pregnancy, underlying diseases such as cardiovascular, hepatobiliary, and renal diseases.
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01284426
|Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Siriraj Hospital, Mahidol University
|Bangkok, Thailand, 10700 |
||Orathai Piboonpocanun, Prof.
||Orathai Piboonpocanun, Prof., Mahidol University
History of Changes
|Other Study ID Numbers:
|Study First Received:
||January 20, 2011
|Results First Received:
||August 21, 2015
||December 30, 2015
Keywords provided by Mahidol University:
Additional relevant MeSH terms:
ClinicalTrials.gov processed this record on April 27, 2017
Skin Diseases, Vascular
Immune System Diseases