Efficacy of Local Food Extracts at Different Storage Times

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

60 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-01-01

Study Completion Date

2019-08-31

Brief Summary

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Local lyophylized food extracts are available useful in skin prick test and atopy patch test to confirm food allergy. However, the investigators want to know the duration that the investigators can keep the extracts for the usage in this purpose.

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Detailed Description

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Food allergy incidence increases world wide. The diagnosis mostly depends on history. Skin prick test and atopic patch test are useful in finding the causative foods in some cases. The local food extracts have been shown to be at least as effective as commercial ones. From previous study the investigators keep the extract at 2-8 degree Celsius for 1-3 months for the usage. The investigators want to evaluate the duration that the extracts are still useful in diagnosis food allergy

Conditions

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Food Allergy

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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prick and patch test

The cases are pricked and patched with local food allergen extract at different storage times (0, 3 and 6 months after preparation)

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Positive skin prick test to one of the food (milk, egg, soy, wheat, seafood)

Exclusion Criteria

* Chronic diseases such as heart disease, liver, renal and severe sepsis
* Severe allergic symptoms such as anaphylaxis
* Extensive skin rashes
* Pregnancy

Minimum Eligible Age

3 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No