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Reactions to corticosteroids: some new aspects regarding cross-sensitivity
A Goossens1, M Matura, H Degreef
1Department of Dermatology, Leuven University Hospital, Katholieke Universiteit Leuven, Belgium.
Cutis
|February 9, 2000
Summary
Patch testing confirmed a four-group classification for corticosteroid allergy, with esters further divided into halogenated (D1) and prodrug (D2) types. This aids in understanding cross-reactivity for allergic patients.
Area of Science:
- Dermatology
- Allergology
- Pharmacology
Background:
- Corticosteroid allergy is a significant clinical concern.
- Previous classification identified four cross-reacting corticosteroid groups (A, B, C, D).
- Group D, comprising esters, required further subclassification.
Purpose of the Study:
- To validate the existing four-group classification of cross-reacting corticosteroid molecules.
- To subclassify the ester group (Group D) of corticosteroids based on patch test results.
Main Methods:
- Patch testing was performed on patients with known corticosteroid allergy.
- A comprehensive series of corticosteroids was used for testing.
- Results were analyzed to confirm and refine existing classifications.
Main Results:
- Patch test results validated the classification into four groups: Group A (hydrocortisone type), Group B (acetonides), Group C (betamethasone type-non-esterified), and Group D (esters).
- Group D was successfully subclassified into Group D1 (halogenated, C16-substituted) and Group D2 ("labile" prodrug esters).
Conclusions:
- The four-group classification of corticosteroid cross-reactivity is validated.
- A refined subclassification of corticosteroid esters (D1 and D2) is established.
- This classification aids in managing patients with corticosteroid allergies.