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HP is also engaged in the development of gastric cancer and gastric mucosa-associated lymphoid tissue lymphoma. It is an important pathogenic factor in various other systemic diseases, such as vitamin B12 deficiency, iron deficiency, and idiopathic thrombocytopenia. The current consensus is that unless there is a special reason, eradication therapy should be implemented whenever HP infection is found, and it is ideally successful the first time. International guidelines recommend that under certain conditions, treatment should be personalized based on drug susceptibility testing. However, drug susceptibility testing is often not available because it is expensive, time-consuming, and difficult to obtain living tissue. Each region has separately formulated guidelines or consensuses on empirical therapy. Owing to an increasing drug resistance rate in various places, the eradication rate of proton pump inhibitor (PPI) triple therapy and sequential therapy has been affected. These regimens are rarely used; the PPI triple especially has been abandoned in most areas. Currently, radical treatment regimens for HP involve bismuth-containing quadruple therapy and concomitant therapy. However, quadruple therapy has its own limitations, such as complex drug administration. To improve the effectiveness, safety, and compliance, many clinical studies have proposed useful modified regimens, which mainly include the modified bismuth-containing quadruple regimen, high-dose dual therapy, and vonoprazan-containing regimens. Studies have shown that these emerging regimens have acceptable eradication rates and safety, and are expected to become first-line treatments in empirical therapy. However, the problem of decline in the eradication rate caused by drug resistance has not been fundamentally solved. This review not only summarizes the effectiveness of mainstream regimens in the first-line treatment of HP infection with the currently increasing antibiotic resistance rates, but also summarizes the effectiveness and safety of various emerging treatment regimens. <\/jats:p>","DOI":"10.1177\/1756284821989177","type":"journal-article","created":{"date-parts":[[2021,6,28]],"date-time":"2021-06-28T07:46:51Z","timestamp":1624866411000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":34,"title":["The status and progress of first-line treatment against <i>Helicobacter pylori<\/i> infection: a review"],"prefix":"10.1177","volume":"14","author":[{"given":"Caiqi","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2210-6183","authenticated-orcid":false,"given":"Yuan","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaqi","family":"Shi","sequence":"additional","affiliation":[{"name":"Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunhui","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianhua","family":"Nie","sequence":"additional","affiliation":[{"name":"Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shun","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tongsen","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, 150 Haping road, Harbin, Heilongjiang Province 150001, P. 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