Comparison of the ImmunoCAP Assay and AdvanSureTM AlloScreen Advanced Multiplex Specific IgE Detection Assay

• Published in: Yonsei medical journal 2017, 58(4), , pp.786-792
• Main Authors: 박경희, 박중원, 이종선, 이상철, 손영웅, 심다운, 이재현
• Format: Article
• Language: English
• Subjects: 의학일반
• ISSN: 0513-5796; 1976-2437
• DOI: 10.3349/ymj.2017.58.4.786

Purpose: The AdvanSureTM AlloScreen assay is an advanced multiplex test that allows for simultaneous detection of specific IgE (sIgE) against multiple allergens. For precise identification of causative allergens in allergic patients, we compared this new multiplexsIgE assay with the ImmunoCAP assay, which is currently the gold-standard method for sIgE detection. Materials and Methods: Serum samples from 218 Korean allergic disease patients were used to compare the ImmunoCAP and AlloScreen assays with respect to the following 13 allergens: Dermatophagoides pteronyssinus, Dermatophagoides farinae, cat and dog dander, Alternaria, birch, oak, ragweed, mugwort, rye grass, and food allergens (egg white, cow’s milk, peanuts). Results: A total of 957 paired tests using the 13 allergens were compared. The total agreement ratio ranged from 0.74 (oak) to 0.97 (Alternaria). With respect to class association analyses, the gamma index ranged from 0.819 (rye grass) to 0.990 (Alternaria). The intra-class correlation coefficients for house dust mites, cat and dog dander, Alternaria, birch, ragweed, egg white, cow’s milk, and peanut sIgE titers were >0.8. Conclusion: The AlloScreen and ImmunoCAP assays exhibited similar diagnostic performance. However, due to methodological differences between the two systems, careful interpretation of their results is needed in clinical applications. KCI Citation Count: 10