- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00589251
Equivalency of Penicilloate Skin Test Reactivity Prepared by a Modified Alkaline Hydrolysis Technique
Study Overview
Detailed Description
The primary objective of the study is to evaluate the equivalency of the skin test reactivity to penicilloate prepared by our new method of penicilloate preparation versus our old method of penicilloate preparation. The secondary objective of the study is to evaluate the significance of the different diastereoisomers of penicilloate on skin test reactivity.
Five (5) adult subjects without a history of penicillin allergy and fifteen (15) adult subjects with a history of penicillin allergy and previous positive penicillin skin test to the minor determinant (penicilloate) and/or major determinant (penicilloyl) will be enrolled into the study. Each subject will be skin tested with our current penicillin skin test which includes penicilloate conducted in the Division of Allergic Diseases will be compared the skin test of our penicilloate prepared by our newer method along with the different diastereoisomers of penicilloic acid on the same day and time. The adult subjects without a history of penicillin allergy will serve as our control.
Study Type
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- History of penicillin allergy
- Previous or current positive skin test to penicilloate
- Greater than or equal to 18 years of age
Exclusion Criteria:
- Uncontrolled asthma by symptoms
- Patients who have received penicillin and had no adverse drug reaction
- Previous adverse reaction to penicillin skin test
- Dermatological conditions that may interfere with skin testing i.e. atopic dermatitis and dermatographism
- Medication that may interfere with skin testing i.e. antidepressants, antihistamines, and sedatives.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: penicillin skin test
Patients will have the skin test placed
|
Prick skin tests will be performed on the volar surface of the forearm with each penicilloate and control reagents. The skin test sites will be examined at 15 minutes. A positive test result is defined as a wheal of 3x3 mm or greater with a surrounding zone of erythema. Patients with negative prick test results to penicillin will undergo intradermal testing. Intradermal skin tests will be performed on the volar surface of the forearm. The test reagents will be injected intradermally to produce an initial wheal of 2x2 mm. The skin test sites will be examined at 15 minutes. A positive intradermal test is defined as a wheal of 3x3 mm or greater with a surrounding zone of erythema. In order to ensure patient safety, we will consider using an end point titration technique. |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The primary objective of the study is to evaluate the equivalency of the skin test reactivity to penicilloate prepared by our new method of penicilloate preparation versus our old method of penicilloate preparation.
Time Frame: immediate
|
immediate
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The secondary objective of the study is to evaluate the significance of the different diastereoisomers of penicilloate on skin test reactivity.
Time Frame: immediate
|
immediate
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Miguel Park, MD, Mayo Clinic
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 301-06
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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