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Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial...
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Updated: Apr 3, 2026

Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10
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New Contact Allergens: 2008 to 2015.

Anton C de Groot1

  • 1From Acdegroot Publishing, Wapserveen, The Netherlands.

Dermatitis : Contact, Atopic, Occupational, Drug
|September 15, 2015
PubMed
Summary

Researchers identified 172 new contact allergens between 2008-2015, with 119 causing allergic contact dermatitis (ACD). Cosmetics and occupational exposures were common sources of these new allergens.

Area of Science:

  • Dermatology
  • Toxicology
  • Occupational Health

Background:

  • New chemical substances are continually identified as causes of contact allergy annually.
  • Literature reviews identify novel contact allergens and their clinical significance.

Purpose of the Study:

  • To identify and characterize new contact allergens reported in scientific literature between 2008 and 2015.
  • To analyze the sources, clinical presentation, and occupational relevance of newly identified allergens.

Main Methods:

  • Systematic review of articles published in "Contact Dermatitis" and "Dermatitis" from 2008-2015.
  • Data extraction included allergen identification, CAS number, patch test results, product association, and patient demographics.
  • Classification of allergens based on function, class, and causative product.

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Main Results:

  • 172 new contact allergens were identified; 119 induced allergic contact dermatitis (ACD).
  • Cosmetic ingredients were the most frequent source (approx. 33%), followed by occupational drugs (18%) and chemicals in rubber/plastics/paints (9%).
  • 40% of cases involved occupationally acquired dermatitis; 53 additional chemicals caused contact allergy without ACD induction.

Conclusions:

  • The study highlights a continuous emergence of new contact allergens, necessitating ongoing surveillance.
  • Cosmetics and occupational exposures represent significant sources of new-onset allergic contact dermatitis.
  • Understanding these new allergens is crucial for prevention and clinical management of contact dermatitis.