Clinical evaluation of a new in-vitro assay for specific IgE, the immuno CAP system

Autor: M. Seppey, B. Mosimann, Vincent Aubert, Y. Jaccard, Alain Pécoud, R. Peitrequin, M. Claeys, Marie‐Pierre Nisoli, Annette Leimgruber
Rok vydání: 1991
Předmět:
Zdroj: Clinical Experimental Allergy. 21:127-131
ISSN: 1365-2222
0954-7894
DOI: 10.1111/j.1365-2222.1991.tb00814.x
Popis: The Pharmacia CAP system is a new assay for specific IgE characterized by a new solid phase (hydrophilic polymer encased in a capsule). The CAP results were compared to those of the Phadebas IgE RAST and skin-prick tests (SPT) performed in 145 subjects suffering from rhinitis and/or asthma with eight common inhalant allergens (total number of tests = 1160). Concording CAP/RAST results were found in 91% of the tests. The CAP was positive in 78% and the RAST in 65% of the positive SPT. Conversely, the CAP was negative in 90.6% and the RAST in 96.4% of the negative SPT. A pattern negative SPT, negative RAST and positive CAP' was found in 56 tests (40 subjects): in four such subjects, the CAP positivity was confirmed by a positive IgE crossed radioimmunoelectrophoresis. Three borderline positive results were found among 240 negative controls (serum from cord blood or non-atopics). These data indicate that compared with SPT the CAP system is (a) more sensitive than the Pharmacia RAST and (b) does not seem less specific.
Databáze: OpenAIRE