• Mao Zhao, Yuchang Jiang, Zhaoxing Chen, Zhipeng Fan, and Yong Jiang.
• Chengdu University of Traditional Chinese Medicine, School of Basic Medical Sciences, Chengdu, China.
• Medicine (Baltimore). 2021 Jan 22; 100 (3): e24282.

BackgroundHelicobacter pylori (Hp) is the only bacterium in the stomach. It is characterized by its ability to adhere to gastric mucosa and cause a series of pathological changes in the gastric mucosa. Modern research shows that Hp is an important pathogenic factor for chronic gastritis, gastroduodenal ulcer, and gastric cancer. Triple, quadruple, and triple combinations of antibacterial drugs, proton pump inhibitors, and bismuth aluminate preparations have been developed in modern medical research. Sequential therapy is used to treat Hp, but antibiotic resistance and repeated infections still exist. A large number of clinical trials have proved that traditional Chinese medicine has a good therapeutic effect on Hp. In this systematic review, we aim to evaluate the efficacy and safety of traditional Chinese medicine in the treatment of Hp.Methods And AnalysisWe will search for publications from Web of Science, PubMed, Science Direct, Wan Fang Data Knowledge Service Platform, Chinese Biomedical Literature Database (CBM), Chinese Scientific Journal Database (VIP database), China National Knowledge Infrastructure (CNKI) and EMBASE, which should be published from inception to December 2020. Two researchers will independently perform the selection of the studies, data extraction, and synthesis. The Cochrane Risk of Bias Tool will be used to evaluate the risk of bias in the randomized controlled trials. Statistical analysis will be performed by using the Cochrane Review Manager (RevMan 5.3) software. The I2 test will be used to identify the extent of heterogeneity. We will use the Egger funnel chart to evaluate possible publication biases, in addition, when possible we will perform a subgroup/meta-regression analysis. The strength of the evidence will be assessed according to the Grading of Recommendations Assessment, Development, and Evaluation (GRADE).Results And ConclusionsThis study will systematically evaluate the efficacy of traditional Chinese medicine in the treatment of Hp infection, and provide evidence for the clinical application of this treatment. The results of the research will be published in a peer-reviewed journal.EthicsThis systematic review will evaluate the efficacy of traditional Chinese medicine for Hp infection. Because all data used in this systematic review and meta-analysis have been published, this review does not require ethical approval.Trial Registration NumberINPLASY2020120057.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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