• Zhi-Guo Shi and Li-Hui Chen.
• Department of Laboratory, Jincheng People's Hospital, Jincheng, Shanxi, China.
• Medicine (Baltimore). 2021 Jul 9; 100 (27): e26418e26418.

BackgroundPrevious studies have demonstrated that Helicobacter pylori is a critical factor in the development of gastrointestinal diseases. However, only limited studies have reported results on the relationship between H pylori infection and patients with type 2 diabetes mellitus (T2DM). Moreover, the conclusions from these past studies are variable. Because there are contradictory results on this issue, the present study aims to examine the clinical therapeutic impacts of H pylori eradication to treat patients experiencing T2DM.MethodsThe present protocol is drafted according to the provisions of the Preferred Reporting Items for Systematic Review and Meta-analyses Protocols guidelines. PubMed, Cochrane Central Register of Controlled Trials databases, EMBASE, Web of Science, China National Knowledge Infrastructure, and Chinese BioMedical Literature Database will be searched up to May 2021 to obtain randomized controlled trials evaluating the clinical therapeutic effects of H pylori eradication to treat patients experiencing T2DM. We will use 2 investigators independently to carry out study selection, data extraction, and employ the Cochrane Collaboration criteria to evaluate their risks of bias. Furthermore, we will apply Stata 16.0 software to perform data analysis.ResultsWe intend to evaluate the clinical therapeutic impacts of H pylori eradication to treat patients suffering from T2DM.ConclusionsOur findings may support existing evidence on the clinical therapeutic impacts of H pylori eradication to treat patients with T2DM.Ethics And DisseminationSince all data will be extracted from the published literature, the study does not require an ethical approval.Osf Registration NumberMay 31, 2021.osf.io/qtexu. (https://osf.io/qtexu/).Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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