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Nicole Müller1, Theresa Fachruddin1, Oliver Hausmann1,2,3

  • 11 ADR-AC GmbH, Bern.

Therapeutische Umschau. Revue Therapeutique
|July 9, 2019
PubMed
Summary
This summary is machine-generated.

Diagnosing drug allergies relies on patient history and skin tests. Supplementary leukocyte analysis, including basophil activation tests (BAT) and lymphocyte transformation tests (LTT), improves diagnostic accuracy when skin tests are inconclusive.

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Area of Science:

  • Clinical Immunology
  • Allergology
  • Pharmacology

Background:

  • Drug allergy diagnosis traditionally relies on patient history and skin tests.
  • Skin tests offer high specificity but can have low sensitivity for certain drug classes.
  • Negative skin tests cannot definitively rule out a drug allergy.

Purpose of the Study:

  • To evaluate the role of supplementary laboratory tests in diagnosing drug allergies.
  • To assess the diagnostic utility of leukocyte-based assays alongside traditional methods.
  • To improve the accuracy of identifying drug allergy triggers and finding safe alternatives.

Main Methods:

  • Detailed patient anamnesis and medical history review.
  • Skin testing (prick, intradermal, patch tests).

Related Experiment Videos

  • Laboratory tests including serological IgE, basophil activation test (BAT), and lymphocyte transformation test (LTT).
  • Provocation tests when indicated.

    • Main Results:

    • Skin tests show high specificity but variable sensitivity.
    • Serological IgE tests have limited utility in drug allergy diagnosis.
    • Leukocyte-based tests (BAT, LTT) have gained importance.
    • Combining skin tests, LTT, BAT, and provocation tests allows diagnosis in about 70% of cases.

    Conclusions:

    • Laboratory diagnostics, particularly leukocyte analysis (BAT, LTT), significantly complement traditional methods for drug allergy diagnosis.
    • A combination of diagnostic approaches improves the identification of drug allergy triggers.
    • This integrated approach facilitates the selection of safe therapeutic alternatives for patients.