• Nobuaki Hoshino, Koya Hida, Riki Ganeko, and Yoshiharu Sakai.
• Department of Surgery, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan. hoshinob@kuhp.kyoto-u.ac.jp.
• Int J Colorectal Dis. 2017 May 1; 32 (5): 737-740.

PurposeChemotherapy-induced peripheral neuropathy (CIPN) is an issue for both cancer patients and specialists, and the number of cases of CIPN is growing with the increasing number of cancer patients worldwide. CIPN is often caused by common anticancer drugs such as taxanes and platinum analogs. These are key drugs for various cancers including colorectal and gastric cancers. However, there are currently no effective drugs to prevent CIPN. Goshajinkigan, a Japanese traditional herbal medicine (Kampo), is a promising drug which is used to treat diabetic neuropathy in Japan. This systematic review will assess the efficacy and safety of Goshajinkigan for reducing CIPN in cancer patients receiving chemotherapy.Methods And AnalysisWe will conduct a comprehensive search of relevant randomized controlled trials in Scopus, Ovid MEDLINE, Cochrane Central Register of Controlled Trials, and ICHUSHI. Two review authors will independently assess studies for inclusion and consult a third review author if necessary. The risk of bias of the included studies will be assessed according to the Cochrane risk of bias tool. We will investigate heterogeneity using forest plots and the chi-square test. When there are enough studies and any heterogeneity, we will use a random-effects model. Otherwise, we will use a fixed-effects model.Ethics And DisseminationThis is a protocol for systematic review and meta-analysis and does not need ethics approval. We will disseminate the findings of this review through publication in a peer-reviewed journal.Trial Registration NumberPROSPERO CRD42016045224.

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