NCT02764827

Comparison of Skin Prick Testing Results of Local and Imported Pollen Allergen Extracts and Specific IgE

Comparison of Skin Prick Testing Results of Local and Imported Pollen Allergen Extracts (Bermuda ,Johnson Grasses and Careless Weed) With Specific IgE Levels.

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 68 (actual)
• Sponsor: Mahidol University · Academic / Other
• Sex: All
• Age: 18 Years – 60 Years
• Healthy volunteers: Accepted

Summary

Pollen allergen extracts are prepared locally and checked for efficacy by comparison to imported allergens and specific IgE.

Detailed description

Skin prick test (SPT) and specific IgE (sIgE) are approved for evaluation of allergen sensitization. Local allergen extracts are cheaper and more available but need standardization. Pollen allergen extracts: Bermuda, Johnson and careless weed are locally prepared and compared mean wheal diameter of skin prick test to imported allergens and also to specific IgE.

Conditions

• Immediate Type Hypersensitivity

Interventions

Type	Name	Description
BIOLOGICAL	Pollen sensitization	Skin prick test with local and imported Bermuda, Johnson and careless weed allergen extracts at concentration of 10,000, 3,000, 1,000 and 300 AU/mL and measure specific IgE levels

Timeline

• Start date: 2014-11-01
• Primary completion: 2016-04-01
• Completion: 2016-04-01
• First posted: 2016-05-06
• Last updated: 2016-05-10