New Consensus Guide on Rare Drug Hypersensitivity Reaction
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New Consensus Guide on Rare Drug Hypersensitivity Reaction

Heidi Splete

November 17, 2023

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TOPLINE:

An international expert consensus offers guidance to diagnose, assess, and treat adult patients experiencing drug reaction with eosinophilia and systemic symptoms (DRESS).

METHODOLOGY:

  • Data on the evaluation, assessment, and treatment of the rare but potentially life-threatening drug hypersensitivity reaction are lacking.

  • To support clinicians in diagnosing and managing DRESS, a steering committee conducted a literature review to examine current research, identify evidence, and develop consensus statements. They invited experts from 21 countries across four continents to participate in a Delphi consensus process.

  • An international panel of 54 experts (including 45 dermatologists) initially assessed 100 statements related to baseline workup, severity of the condition, and treatment. Two more statements were added in the second round.

  • After revisions and the second round, the group reached consensus for 93 statements overall.

TAKEAWAY:

  • The statements generating the most disagreement involved diagnosis. The group ultimately supported the value of measuring the viral load of Epstein-Barr virus, cytomegalovirus, and human herpesvirus 6 in all patients with suspected DRESS. The group also agreed on screening for hepatitis A, B, and C in cases of liver involvement and screening for hepatitis B and C before starting systemic therapy.

  • The group agreed with previous severity criteria that differentiate between mild, moderate, and severe DRESS based on the extent of liver, kidney, and blood involvement and the damage of other organs.

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