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  • Title: Outcomes of kidney transplantation in patients with IgA nephropathy based on induction: A UNOS data analysis.
    Author: Aydin-Ghormoz EA, Perlmutter J, Koizumi N, Ortiz J, Faddoul G.
    Journal: Clin Transplant; 2024 Jan; 38(1):e15225. PubMed ID: 38127110.
    Abstract:
    INTRODUCTION: IgA nephropathy (IgAN) can cause end-stage kidney disease (ESKD). This study assesses the impact of induction and maintenance immunosuppression on IgAN recurrence, graft survival, and mortality in living and deceased donor kidney transplants (LDKT and DDKT). METHODS: Retrospective analysis of the UNOS database in adults with ESKD secondary to IgAN who received kidney transplants between January 2000 and June 30, 2022. Patients with thymoglobulin (ATG), alemtuzumab, or basiliximab/daclizumab induction with calcineurin inhibitor (CNI) and mycophenolate mofetil (MMF) with or without prednisone maintenance were analyzed. Multivariate logistic regression was performed to identify factors correlated with IgA recurrence. Multivariable Cox regression analyses were performed for clinically suspected risk factors. Kaplan Meir Analysis was utilized for overall graft survival. RESULTS: Compared to ATG with steroid maintenance, alemtuzumab with steroid increased the odds of IgAN recurrence in DDKTs (OR 1.90, p < .010, 95% CI [1.169-3.101]). Alemtuzumab with and without steroid increased the odds of recurrence by 52% (p = .036) and 56% (p = .005), respectively, in LDKTs. ATG without steroids was associated with less risk of IgAN recurrence (HR .665, p = .044, 95% CI [.447-.989]), graft failure (HR .758, p = .002, 95% CI [.633-.907]), and death (HR .619, p < .001, 95% CI [.490-.783]) in DDKTs. Recurrence was strongly associated with risks of graft failure in DDKTs and LDKTs and death in LDKTs. CONCLUSION: In patients with IgAN requiring a kidney transplant, Alemtuzumab induction correlates with increased IgAN recurrence. Relapse significantly affects graft survival and mortality. ATG without steroids is associated with the least graft loss and mortality.
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