Stopped: We did not enroll subjects. If we want, we will open this again at a later date.
Although the notions that kidney transplantation is the treatment of choice for patients with end-stage renal disease and that simultaneous kidney and pancreas transplant is the only treatment able to restore euglycemia in patients with type 1 diabetes and selected patients with type 2 diabetes, are now consolidated, rates of transplantation remain low among potential candidates with high levels of preformed anti-HLA antibodies. Most of the data comes from the experience in kidney transplant but can be easily translated to pancreas transplant. Approximately 30% of patients on the transplant waiting list have evidence of sensitization in the form of alloantibodies, generated from exposure to previous transplants, blood transfusions, pregnancy, or other events. The presence of a panel-reactive antibody level of at least 80% (i.e. a high level of sensitization) creates difficulty in finding matched kidneys from compatible donors, leading to lower rates of transplantation in highly sensitized candidates compared to non-sensitized; the longer waiting times translates in an increased mortality rate. Despite the development of desensitization strategies and the advancement in immunosuppression protocols, it is apparent that transplanting these patients carries an increased risk of acute antibody mediated rejection; 25%-50% of transplants will have an early acute antibody mediated rejection . Most of these rejections can be successfully treated, but a high rate of transplant glomerulopathy and chronic antibody mediated rejection (AMR) leading to accelerated allograft failure is common.
Age range
18 Years
Sex
ALL
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Rate of successful spleen transplantations/removals that can overcome the immunological barrier of positive T flow crossmatch and allow better results in kidney transplant recipients with high cPRA compared to the standard treatment.
Timeframe: 3 years
Rate of graft success
Timeframe: 3 years
Rate of patient survival
Timeframe: 3 years