Abstract
ObjectiveThe objective of this study was to analyze the impact of induction immunosuppression on the incidence of recurrent IgA nephropathy (IgAN). MethodsWe conducted recurrence-free survival analysis of recipients of a first kidney transplant for IgAN who received a graft between 1995 and 2015. Kaplan-Meier and Cox regression analyses were used to sort the significant risk factors for recurrence. A total of 226 recipients with biopsy-proven IgAN received a kidney transplant, and 218 recipients were enrolled. ResultsAmong the recipients, 29 cases of IgAN recurrence were observed. The recipients were categorized into 3 groups according to induction immunosuppression: no induction (group 1, n = 72), anti-CD25 (group 2, n = 86), and antithymocyte globulin (ATG, group 3, n = 60). The 5- and 10-year cumulative IgAN recurrence rates were 9.7% and 21.0%, respectively. Recipients receiving ATG (group 3) exhibited significantly higher 4- and 5-year recurrence-free graft survival rates (both 96.4%) than recipients who received anti-CD25 (group 2, both 85.1%, P = .03). However, the induction therapy used (ATG or basiliximab) was not the risk factor for IgAN recurrence. ConclusionsTherefore, we concluded that ATG induction seems to postpone IgAN recurrence. These findings should be evaluated with well-designed prospective studies.
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