The discovery of bacterial enzymes with specificity for IgG antibodies has led to breakthroughs in several autoantibody-mediated diseases. Two such enzymes, IdeS and EndoS, degrade IgG by different mechanisms, and have separately shown promise in numerous animal models of autoimmune diseases. Recently, imlifidase (the international nonproprietary name for IdeS) has advanced to clinical trials, where it has performed remarkably well in desensitizing patients to enable kidney transplantation, and in anti-glomerular basement membrane disease. Conversely, it performed poorly in thrombotic thrombocytopenic purpura. This review summarizes the development of antibody-degrading enzymes, with a discussion of key clinical studies involving imlifidase. The future of the field is also discussed, including the use of these enzymes in other diseases, and the potential for re-dosing.
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| http://dx.doi.org/10.1016/j.tmrv.2022.05.003 | DOI Listing |
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