• Shifeng Yang, Liyi Xie, Wujun Xue, Aiping Yin, and Wanhong Lu.
• Department of Nephrology, First Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, China.
• Nephrology (Carlton). 2013 Sep 1; 18 (9): 615-22.

AimTreatment of idiopathic membranous nephropathy (IMN) remains a controversial issue. While clinical trials have shown that some immunosuppressants combined with glucocorticoid have a good efficacy on IMN patients. However, there is little data on leflunomide (LEF) in treatment of IMN.MethodsRecords of every patient with biopsy-proven IMN in Department of Nephrology, the First Affiliated Hospital, Xi'an Jiaotong University from January 2005 to December 2011 (n=194) were retrospectively analyzed. Patients with nephrotic IMN were treated with LEF plus oral prednisone (n=32) for at least 12 months, whereas 31 patients who did not receive any immunosuppressants were used as controls.ResultsRemission rates in the LEF group were 31.3%, 59.4%, 68.8% and 71.9% at 6, 9, 12 and 15 months, respectively, which were significantly higher than those in controls. In the LEF group, proteinuria decreased from 6.79 g/24 h at baseline to 5.63 g/24 h (P<0.01), 3.85 g/24 h (P<0.01) and 2.51 g/24 h (P<0.01) after treatment for 6, 9 and 12 months, respectively. Relapse occurred in five (21.7%) patients within a median of 14 months (range, 8-27) after cessation of LEF. No patients developed renal insufficiency during the therapeutic period. Multivariate analysis suggested that age negatively correlated with achievement of remission (odds ratio, 0.87; P<0.05). No serious adverse events were observed.ConclusionLEF plus oral prednisone may be an alternative treatment option in Chinese patients with nephrotic IMN.© 2013 The Authors. Nephrology © 2013 Asian Pacific Society of Nephrology.

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