摘要 |
The invention relates to methods and kits for assessing the risk, for an individual, of developing an adverse event upon treatment with a therapeutic antibody which is capable of Fab-arm exchange, said method comprising the steps of: a) providing a sample from an individual who is a candidate for treatment with said therapeutic antibody, b) assaying said sample for the presence of circulating IgG4 antibodies that binds an antigen known or suspected to be associated with a causative agent of said adverse event, and c) assessing, on the basis of the outcome of the assay of step b), the risk that the individual will develop said adverse event upon treatment with the therapeutic antibody, wherein the risk of development of said adverse event increases with increased level of said circulating IgG4 antibodies.
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