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Review
. 2024 Oct 1;24(5):293-299.
doi: 10.1097/ACI.0000000000001012. Epub 2024 Jul 24.

Tryptase in drug-induced anaphylaxis: the need for acute and baseline values

Moïse Michel  1   2 , Delphine Giusti  3   4 , Caroline Klingebiel  5 , Joana Vitte  3   6
Affiliations
Review

Tryptase in drug-induced anaphylaxis: the need for acute and baseline values

Moïse Michel et al. Curr Opin Allergy Clin Immunol. .

Abstract

Purpose of review: The purpose of this narrative review was to summarize data and official recommendations purporting to paired tryptase determination in patients experiencing drug-induced anaphylaxis, published between January 1, 2023 and June 1, 2024.

Recent findings: Three main lines of evidence obtained through paired acute and baseline tryptase determination were identified: diagnostic criterion for hypersensitivity reactions involving systemic mast cell activation; differential diagnostic criterion for hypersensitivity reactions involving other mechanisms of immediate reactions; and added value of acute and baseline tryptase levels for personalized management following drug-induced anaphylaxis: cause, risk of recurrence, underlying mast cell conditions including hereditary α-tryptasemia, familial clusters.

Summary: The implementation of existing guidelines which consensually recommend paired tryptase measurement is a persistent unmet need hampering optimal diagnosis of drug-induced anaphylaxis and patient management. Another major unmet need is the lack of standardized recommendations for hereditary α-tryptasemia testing and counselling. Progress in this field is seen at a rapid pace, requiring significant efforts of continued medical education for practicing clinicians and laboratory specialists worldwide.

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