Abstract
Antibody-mediated rejection (AMR) is the leading cause of kidney graft loss. Very few treatment options are available to the clinician to counter this disease process. In this review we describe the available therapeutics and the novel approaches that are being currently developed. AMR treatment requires a multidrug approach. Imlifidase, a new immunoglobulin G cleaving agent, may prove to be the perfect replacement of apheresis. New complement blockers other than eculizumab are in development in order to block acute kidney damage in the delicate phase following antibody removal. Plasma cell depletion is being explored in chronic AMR: studies are in progress with daratumumab and felzartamab. Interleukin 6 inhibition is generating enthusiasm in the chronic setting with preliminary encouraging results. In acute AMR, the clinicians will have to remove the antibodies, avoid rebound and block specific damage effectors. In chronic AMR they will need to reduce the inflammatory response induced by donor specific antibodies. New drugs are available and transplant physicians are starting to develop effective multidrug strategies to counter the complex disease mechanisms. Safety of these drugs needs to be further explored especially when used together with other potent immunosuppressive drugs.
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