• Ni-Ni Chen, Mei Han, Hong Yang, Guo-Yan Yang, Yu-Yi Wang, Xiao-Ke Wu, and Jian-Ping Liu.
• Center for Evidence-Based Chinese Medicine, Beijing University of Chinese Medicine, No, 11 Bei San Huan Dong Lu, Beijing, Chaoyang District, China. jianping_l@hotmail.com.
• Bmc Complem Altern M. 2014 Jan 2; 14: 2.

BackgroundGuizhi Fuling Formula is widely applied for uterine fibroids in China. Many clinical trials are reported. This study assessed the efficacy and safety of Guizhi Fuling Formula for the treatment of uterine fibroids.MethodsPubMed, Cochrane CENTRAL, EMBASE, and four Chinese databases were searched through May 2013. We included randomised controlled trials (RCTs) that tested Guizhi Fuling Formula for uterine fibroids, compared with no intervention, placebo, pharmaceutical medication, or other Chinese patent medicines approved by the State Food and Drug Administration of China. Authors extracted data and assessed the quality independently. We applied RevMan 5.2.0 software to analyse data of included randomised trials.ResultsA total of 38 RCTs involving 3816 participants were identified. The methodological quality of the included trials was generally poor. Meta-analyses demonstrated that Guizhi Fuling Formula plus mifepristone were more effective than mifepristone alone in reducing the volume of fibroids (in total volume of multiple fibroids, MD -19.41 cm(3), 95% CI -28.68 to -10.14; in average volume of multiple fibroids, MD -1.00 cm(3), 95% CI -1.23 to -0.76; in average volume of maximum fibroids, MD -3.35 cm(3), 95% CI -4.84 to -1.87, I(2) = 93%, random effects model). Guizhi Fuling Formula significantly improved symptoms of dysmenorrhea either when it was used alone (RR 2.27, 95% CI 1.04 to 4.97) or in combination with mifepristone (RR 2.35, 95% CI 1.15 to 4.82). No serious adverse events were reported.ConclusionsGuizhi Fuling Formula appears to have additional benefit based on mifepristone treatment in reducing volume of fibroids. However, due to high risk of bias of the trials, we could not draw confirmative conclusions on its benefit. Future clinical trials should be well-designed and avoid the issues that are identified in this study.

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