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Updated: May 12, 2026

Basophil Activation Test for Investigation of IgE-Mediated Mechanisms in Drug Hypersensitivity

Basophil Activation Test for Investigation of IgE-Mediated Mechanisms in Drug Hypersensitivity

Published on: September 16, 2011

A Skin Testing Strategy for Non-IgE-Mediated Reactions Associated With Vancomycin.

Siyan Lyu¹, Eric T Oliver², Melanie C Dispenza²

¹Johns Hopkins University, Baltimore, Md.

The Journal of Allergy and Clinical Immunology. in Practice

|August 8, 2024

Summary

This summary is machine-generated.

Intradermal tests (IDTs) can help differentiate vancomycin infusion reactions (VIR) from tolerance. This skin testing protocol shows promise for identifying VIR, unlike the basophil activation test (BAT).

Keywords:

Basophil activation test Dose-response curve Drug allergy Immediate drug reaction MRGPRX2 MRGPRX2 ligands Non-IgE-mediated immediate drug reaction Skin test Vancomycin infusion reaction

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Basophil Activation Test for Allergy Diagnosis

Basophil Activation Test for Allergy Diagnosis

Published on: May 31, 2021

Area of Science:

Immunology
Pharmacology
Dermatology

Background:

Vancomycin infusion reaction (VIR) is a common immediate drug reaction.
Distinguishing VIR mechanisms is vital for patient management and treatment strategies.
Current diagnostic methods for VIR are limited, often leading to unnecessary vancomycin restrictions.

Purpose of the Study:

To evaluate if intradermal tests (IDTs) and basophil activation tests (BAT) can differentiate VIR from vancomycin-tolerant individuals.
To compare the diagnostic accuracy of IDTs versus BAT in identifying VIR.

Main Methods:

A cross-sectional study involving vancomycin-exposed adults with and without a history of VIR.
Collected data on demographics, allergy history, vancomycin exposure details, and VIR symptoms.
Performed IDTs with vancomycin and analyzed basophil activation test (BAT) results.

Main Results:

IDTs showed a significant difference in dose-response EC50 between VIR and tolerant groups (P < .0001).
Local pruritus on IDT was reported by all VIR subjects versus 60% of tolerant subjects (P = .0185).
Basophil activation test (BAT) results showed no significant difference between the groups (P < .54).

Conclusions:

Intradermal tests (IDTs) show potential in identifying vancomycin infusion reactions (VIR), especially when IgE-mediated mechanisms are not involved.
The evaluated skin test protocol may aid in distinguishing VIR, offering a potential diagnostic tool where BAT is insufficient.
Further research is needed to validate the predictive value of this IDT protocol for assessing VIR risk.