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

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

COMPLETED

Total Enrollment

68 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-11-30

Study Completion Date

2016-04-30

Brief Summary

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

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Detailed Description

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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

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Immediate Type Hypersensitivity

Study Design

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Observational Model Type

CASE_CROSSOVER

Study Time Perspective

CROSS_SECTIONAL

Interventions

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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

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Positive skin prick test to Bermuda or Johnson or careless weed

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

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes