NCT02774629

Efficacy of Local Food Extracts at Different Storage Times

Efficacy of Local Lyophilized Food Extracts for Skin Prick Tests and Atopy Patch Test at Different Storage Times (0, 3 and 6 Months)

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 60 (estimated)
• Sponsor: Mahidol University · Academic / Other
• Sex: All
• Age: 3 Years – 18 Years
• Healthy volunteers: Not accepted

Summary

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.

Detailed description

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

• Food Allergy

Interventions

Type	Name	Description
OTHER	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)

Timeline

• Start date: 2017-01-01
• Primary completion: 2019-08-31
• Completion: 2019-08-31
• First posted: 2016-05-17
• Last updated: 2019-03-14

Locations

1 site across 1 country: Thailand