• Yuan Zhang, Guangming Gong, Xiyu Zhang, Linyue Zhou, Hongyan Xie, Yuan Tian, and Chunguang Xie.
• Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, P.R. China.
• Medicine (Baltimore). 2019 Aug 1; 98 (31): e16696.

BackgroundDiabetic peripheral neuropathy (DPN) is one of the most common causes of disability in diabetic population, and its pathogenesis is related to a variety of factors. There is currently no effective treatment for such chronic disease. Traditional Chinese medicine has a long clinical history for the prevention and treatment of diabetes and chronic complications, and it also shows certain advantages in the treatment of DPN. Many clinical studies have confirmed that Chinese medicine Huangqi Guizhi Wuwu decoction (HGWD) can reduce the clinical symptoms and improve neuronal function of patients with DPN. So we intend to conduct a systematic review further clarified the effectiveness and safety of HGWD for DPN.MethodsWe will search each database from the built-in until June 2019. The English literature mainly searches Cochrane Library, PubMed, EMBASE, and Web of Science, while the Chinese literature comes from CNKI, CBM, VIP, and Wangfang database. Simultaneously we will retrieval clinical registration tests and grey literatures. This study only screen the clinical randomized controlled trials (RCTs) about HGWD for DPN to assess its efficacy and safety. The 2 researchers worked independently on literature selection, data extraction, and quality assessment. The dichotomous data is represented by relative risk (RR), and the continuous is expressed by mean difference (MD) or standard mean difference (SMD), eventually the data is synthesized using a fixed effect model (FEM) or a random effect model (REM) depending on whether or not heterogeneity exists. The clinical efficacy, median sensory nerve conduction velocity, median motor nerve conduction velocity, peroneal sensory nerve conduction velocity, and peroneal motor nerve conduction velocity were evaluated as the main outcomes. Fasting blood glucose, 2 hours postprandial blood glucose, hemorheology, and adverse reactions were secondary outcomes. Finally, meta-analysis was conducted by RevMan software version 5.3.ResultsThis study will synthesize and provide high-quality evidence based on the data of the currently published HGWD for the treatment of DPN, especially in terms of clinical efficacy, neurological function, blood glucose, hemorheology, and safety.ConclusionThis systematic review aims to provide new options for HGWD treatment of DPN in terms of its efficacy and safety.Prospero Registration NumberPROSPERO 2019 CRD42019132031.

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