JOURNAL ARTICLE
REVIEW

Mycophenolate mofetil versus azathioprine as maintenance therapy for lupus nephritis: a meta-analysis

Li Feng, Jin Deng, Dong-Mei Huo, Qiao-Yuan Wu, Yun-Hua Liao
Nephrology 2013, 18 (2): 104-10
23113811

AIM: The options for long-term maintenance therapy in lupus nephritis (LN) remain controversial. This meta-analysis of randomized controlled trials (RCTs) assessed the prognosis and safety of mycophenolate mofetil (MMF) versus azathioprine (AZA) used as maintenance therapy for lupus nephritis.

METHODS: The data of Cochrane Library, PubMed, EMBASE were retrieved to search the studies about the RCT studies that compared MMF with AZA used as maintenance therapy for lupus nephritis. We extracted the data reflecting prognosis, which included mortality, end-stage renal failure (ESRF), renal relapse, doubling serum creatinine, and adverse effects, then further analyzed the combined results of data and calculated the relative risk (RR).

RESULTS: Four RCT studies including 328 patients were enrolled into our meta-analysis. There was no difference between the patients receiving either MMF or AZA for maintenance therapy in preventing relapse, progression to end-stage renal failure, death and doubling of serum creatinine. MMF is not superior to AZA in terms of the risks of infection and gastrointestinal upset, but fewer patients receiving MMF developed leukopenia (RR 0.12; 95% confidence interval (CI), 0.04-0.39; P = 0.0004) and amenorrhoea (RR 0.17; 95% CI, 0.04-0.72; P = 0.02) than those receiving AZA.

CONCLUSION: The current limited evidence suggests that MMF offers similar prognosis as AZA for maintenance therapy, while MMF appears safer than AZA in the treatment of lupus nephritis.

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