NCT01164293

Atopy Patch Test in Children With Food Allergy-related Gastrointestinal Symptoms

Prevalence of Positive Reactions in Atopy Patch Test in Children With Food Allergy-related Gastrointestinal Symptoms

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 40 (actual)
• Sponsor: Mahidol University · Academic / Other
• Sex: All
• Age: 1 Month – 18 Years
• Healthy volunteers: Not accepted

Summary

Positive reactions in Atopy patch test in children with food allergy-related gastrointestinal symptoms

Detailed description

The prevalence of food allergy seems to be increasing, which might explain the increased demand for reliable evaluation of patients with suspected food-related gastrointestinal symptoms. Little is known about the diagnostic accuracy of atopy patch tests(APT) in the clinical practice. APT seems to have a better specificity than the IgE methods and seems to reflect late-phase clinical reactions.The aims of this study were to evaluate: (i) The prevalence of positive reaction of APTs for food allergy-related gastrointestinal diseases. (ii)Positive reaction of APT compare with skin prick test. (iii)Positive reaction of APT using lyophilized food vs commercially available food extracts. (iv)Side effect or adverse events of APT

Conditions

• Food Allergy

Interventions

Type	Name	Description
DEVICE	Atopy patch test with food allergen	Atopy patches used with food lyophilized allergen and commercial allergen were placed on back of subjects for 48 hrs then atopy patches were taken off. Subjects should return to evaluate the reaction one day later (72 hr after applying atopy patch test)

Timeline

• Start date: 2010-04-01
• Primary completion: 2010-12-01
• Completion: 2011-03-01
• First posted: 2010-07-16
• Last updated: 2015-09-18

Locations

1 site across 1 country: Thailand