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  • Title: [Treatment of proliferative lupus nephritis with leflunomide and steroid: a prospective multi-center controlled clinical trial].
    Author: Cui TG, Hou FF, Ni ZH, Chen XM, Zhang FS, Zhu TY, Zhao XZ, Bao CD, Zhao MH, Wang GB, Qian JQ, Cai GY, Li YN, Lu FM, Mei CL, Zou WZ, Wang HY.
    Journal: Zhonghua Nei Ke Za Zhi; 2005 Sep; 44(9):672-6. PubMed ID: 16202258.
    Abstract:
    OBJECTIVE: Leflunomide (LEF) is a selective inhibitor of de novo pyrimidine synthesis, currently used in the treatment of rheumatoid arthritis. To evaluate the efficacy and safety of LEF in the treatment of proliferative lupus nephritis, a prospective multi-center controlled clinical trial was conducted. METHODS: Patients with biopsy-confirmed proliferative lupus nephritis were recruited. Patients of recent onset who had not used any immunosuppressive drug were given either oral LEF (group A) or IV cyclophosphamide (group B); relapsed patients who had received immunosuppressive therapy 3 months before were given LEF (group C). Efficacy and safety were evaluated at 6 months after treatment. RESULTS: Total 51 patients were enrolled, 4 patients withdrew due to adverse events. For those initial treated patients, total response rate were 80% in group A and 75% in group B, complete remission rate were 40% and 25% respectively, not statistically different. Renal parameters (proteinuria, serum albumin and serum creatinine) and systemic lupus erythematosus disease activity index (SLEDAI) improved similarly in both groups. For 14 relapsed patients, total response rate was 60% and complete remission rate was 6.7%. Major adverse events reported in LEF treated patients were infection and alopecia. Herpes zoster was the most often type among infectious events, and one case of severe lung infection was reported. CONCLUSION: LEF combined with steroid was effective in the induction therapy of proliferative lupus nephritis. LEF was generally well-tolerated, its efficacy in maintenance therapy and long-term safety remains to be clarified.
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