Anticomplement activity assays
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United States of America Patent
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Oct 26, 1999
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N/A
app pub date -
Apr 22, 1991
filing date -
Apr 22, 1991
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Abstract
Immunoassays for complement components, complement activation products or, preferably both, can be used to determine an acceptable level of anticomplement activity (AC) in plasma derived biologically active products intended for infusion into a mammal. In one application an ELISA for complement components (CC) such as C1q, C1r or C1s can be used to determine AC in an IgM-enriched immune serum globulin (ISG). In another application, an immunoassay for complement activation products (CAP) is used for a similar determination. In yet a preferred third application, assays for both a CC (such as measuring a decreasing amount of C1r) and a CAP (such as measuring an increasing amount of C4a) are used to assess the relative AC (and safety) of a biologically active, therapeutic preparation.
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