Patients with hemophilia A are treated with Factor VIII (FVIII) concentrates. They often develop antibodies against these FVIII supplements. In this work an optical biosensor has been developed, to detect human FVIII antibodies in patient plasma. For a sensitive detection a novel immobilization technique has been established for the presentation of various FVIII preparations. The biosensor system detects the anti-FVIII antibodies in patient plasmas with a high sensitivity, as shown in the results. Using a multi-step approach with the addition of further clotting factors a discrimination between inhibitory and non-inhibitory antibodies could also be achieved. This provides valuable clinical additional information.
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Patients with hemophilia A are treated with Factor VIII (FVIII) concentrates. They often develop antibodies against these FVIII supplements. In this work an optical biosensor has been developed, to detect human FVIII antibodies in patient plasma. For a sensitive detection a novel immobilization technique has been established for the presentation of various FVIII preparations. The biosensor system detects the anti-FVIII antibodies in patient plasmas with a high sensitivity, as shown in the result...
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