A Phase 1 interventional study of Atopy patch test with food allergen in Food Allergy, sponsored by Mahidol University. Completed at 1 site in Thailand. Open to participants aged 1 Month to 18 Years. Per ClinicalTrials.gov, last updated 2015-09-18.
Sponsored by Mahidol University · Phase 1, Interventional, and Diagnostic
Positive reactions in Atopy patch test in children with food allergy-related gastrointestinal symptoms
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
1,916 studies on the registry are indexed under Hypersensitivity; 265 are open to participants now.
This study's enrollment of 40 is below the median of 57 across 1,384 interventional studies indexed under Hypersensitivity.
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Exclusion Criteria:
Atopy patches were applied on food allergy patient's back for 48 hrs then the patches were removed. Reaction was evaluated at 48 and 72 hrs after applying atopy patch test
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)
Also known as: Fin chamber
Prevalence of positive reaction in APT in children with food allergy-related gastrointestinal symptoms
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.
Time frame: 3 days
Comparisons atopy patch test reaction between lyophilized allergen and commercial allergen
To evaluate (iii)Positive reaction of APT using lyophilized food vs commercially available food extracts. (iv)Side effect or adverse events of APT
Time frame: 3 days
This study is completed, as verified in Sep 2015. You cannot join it, but the record below documents what was studied.
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Mahidol University