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  • Title: Interleukin-2 receptor antibody reduces rejection rates and graft loss in live-donor kidney transplant recipients.
    Author: Lim WH, Chang SH, Chadban SJ, Campbell SB, Dent H, Russ GR, McDonald SP.
    Journal: Transplantation; 2009 Nov 27; 88(10):1208-13. PubMed ID: 19935375.
    Abstract:
    BACKGROUND: The use of interleukin-2 receptor antibody (IL-2Ra) induction has been associated with reduced rejection rates in both live and deceased donor kidney transplantation. However, the longer term effect of IL-2Ra induction on estimated glomerular filtration rates and graft and patient survival remains unclear. METHODS: Using Australia and New Zealand Dialysis and Transplant Registry, live donor renal transplant recipients in Australia between 2001 and 2005 were studied (n=1106). Multiple organ graft recipients and those receiving T-cell depletive induction therapy or steroid- or calcineurin-free inhibitor regimens were excluded. Outcomes analyzed included the presence of rejection at 6 months, estimated glomerular filtration rate at 1 and 3 years, 5 years graft and patient survival. RESULTS: A total of 41.7% of live donor renal transplant recipients received IL-2Ra induction. Recipients of IL-2Ra experienced a 51% reduction in the incidence of acute rejection (odds ratio 0.49, 95%CI 0.36-0.67; P<0.001). In addition, the use of IL-2Ra was associated with reduced overall graft loss (hazard ratio 0.58, 95%CI 0.35-0.96; P=0.03) and higher mean estimated glomerular filtration rate at 1 year but not 3 years. There was no association between IL-2Ra induction and death-censored graft loss or death with functioning graft. CONCLUSION: This registry analysis demonstrates that IL-2Ra induction in live donor kidney transplantation is associated with substantial clinical benefits of reduced risk of acute rejection, improved short-term graft function, and reduced graft loss.
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