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Completed

NCT Number: NCT03645629

Efficacy of Lyophilized Food Extracts for Skin Prick Tests and Atopy Patch Test at Different Storage Time

Comparison the result of skin prick tests and atopy patch test of lyophilized food extracts at different storage time (0, 3 and 6 months) after preparation

Completed

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Key information

Conditions

Food Allergy Food Hypersensitivity Hypersensitivity Hypersensitivity, Immediate Immune System Diseases

Age range

3 year–18 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Siriraj Hospital. Mahidol University

Bangkok, 10700, Thailand

About this study

Skin prick test were performed with lyophilized food extracts (cow milk, egg white, egg yolk, wheat, soy and shrimp) at different storage time (0, 3 and 6 months) after preparation.

Atopy patch test were performed with lyophilized food extracts (cow milk, egg white, egg yolk, wheat, soy and shrimp) at different storage time (0, 3 and 6 months) after preparation

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • mild to moderately severe food allergy patients
  • At least positive skin test to one kind of common food (commercial extract)
  • Stop antihistamine or corticosteroid (if more than 20mg/day) for at least 7 days

Exclusion criteria

  • Dermographism
  • Severe systemic disease such as autoimmune disease, immune deficiency, malignancy
  • Severe dermatitis or large area involment
  • pregnancy

Treatment and study plan

skin test with food at different storage times

Diagnostic Test

Perform skin tests to each foods at 0, 3, 6 months after preparation and compare the results

Primary outcomes

  1. skin test result of lyophilized foods at 6 months after preparation

    Time frame: 6 month

    Perform skin prick test and atopy patch test the patients with lyophilized foods at 0, 3 and 6 months after preparation and compare the results at 6 months to 0 and 3 months.

Sponsors and collaborators

Lead sponsor

Mahidol University

Other

Registry information

Official study title

Comparison of Skin Prick Tests and Atopy Patch Test Results of Lyophilized Food Extracts at Different Storage Time (0, 3 and 6 Months) After Preparation

Important dates

Study start
2018
Primary completion
2019
Study completion
2019
First posted
Aug 24, 2018
Registry last updated
Aug 14, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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