Active clinical trials for "Helicobacter Infections"

This is an open-label, randomized controlled trial. The aim of the study is to evaluate the efficacy and safety of the Qingre Huashi Granules combined the modified dual therapy (or called high dose dual therapy) for Helicobacter pylori infection specifically in geriatric patients, compared with the bismuth containing quadruple therapy. A total of 160 eligible patients will be enrolled in 4 hospitals. The eradication rate, symptoms, and the adverse events will be recorded and analyzed.

With the resistance of Helicobacter pylori increasing, low and unsatisfactory eradication rate (64%) have been observed with standard triple therapy in European children. Which regimen is appropriate for Chinese children? There is no large scale, multi center studies in China about treatment, CYP2C19 gene polymorphism, resistance rate and resistance genotype. Investigators want to perform a research to compare four different treatment regimens（triple therapy, sequential therapy, bismuth quadruple therapy and concomitant therapy）as the first-line treatment of Helicobacter pylori in Chinese children and investigation of resistance, impact factors and changes of microbiota after the therapy. The results of the study will provide theoretical basis to make the new guideline of diagnosis and therapy of Helicobacter pylori in Chinese children. It advance instruct and norm the clinical practice for Chinese pediatrician to increase the cure rate of Helicobacter pylori and decrease the resistance.

The main objective of this trial is to assess whether a sequential therapy strategy based on molecular antibiotic susceptibility testing (including clarithromycin and fluoroquinolone) for H. pylori infection will improve the eradication rate compared to an empirical therapy.

The treatment of helicobacter pylori is very important. The routine treatment is quadruple therapy. In recent years, double therapy has appeared and the curative effect is fair. However, antacid generally uses proton pump inhibitor. The proton pump inhibitor needs double dose to achieve good antacid curative effect. The effect of vonoprazan used for inhibiting gastric acid is better than proton pump inhibitor. At present, many studies use vonoprazan instead of common proton pump inhibitor, but almost all use double dose of vonoprazan. In the previous study, we found that the effect of double dose of proton pump inhibitor can be achieved with 20mg QD of vonoprazan. Therefore, in this study, 20mg QD of vonoprazan was used to replace the double dose of proton pump inhibitor to observe the antibacterial effect of vonoprazan on Helicobacter pylori.

To compare the eradication success rate between 10-days sequential therapy and 7-days tailored therapy based on H. pylori culture and antimicrobial susceptibility testing.

This study aims to evaluate the efficacy and safety of 14-day quadruple therapy based on fecal molecular antimicrobial susceptibility tests for the first-line eradication of H. pylori infection, thus, providing more evidence to inform the value of fecal antimicrobial susceptibility tests in the first-line treatment of H. pylori infection.

Appropriately, half of the global population is infected with H. pylori, and it is now recognized that it causes at least 95% of all gastric cancers. Currently, the main challenge in the field of H. pylori infection is the rapidly increasing antibiotic resistance worldwide, which is causing a decline in the effectiveness of currently available eradication regimens. The aim of the study is to assess the safety and efficacy of different H. pylori vonoprazan-based regimens compared to the commonly used standard triple therapy composed of Clarithromycin, Amoxicillin, and Proton pump inhibitor to eradicate H. pylori infection in treatment-naive patients through the determination of each regimen eradication rate and reported safety profile

The purpose of this study is to investigate whether the eradication rate of H.pylori will be improved when adding fucoidan to the duplex scheme combination of amoxicillin and vonoprazan, and to explore the effect of fucoidan on gastrointestinal flora of patients.

The prevalence of H. pylori antibiotic resistance has reached an alarming level worldwide. Antibiotic stewardship programs should be urgently developed and implemented. However, H. pylori antimicrobial susceptibility testing (AST) is rarely offered, making local resistance patterns not easily available. Guideline-recommended empiric therapies (GR-ET) may no longer reliably achieve high cure rate in the era of increasing antibiotic resistance. susceptibility-guided tailored therapy (SG-TT) may be a good choice to solve this problem. The aims of this study are: to compare the efficacy of SG-TT with GR-ET as rescue regimens for H. pylori eradication; to compare the patient adherence and adverse effects of these treatment regimens; to investigate factors that may influence H. pylori eradication by these treatment regimens.

This multicenter randomized controlled clinical trial was conducted to compare the eradication efficacy and health economic benefits of individualized regimens based on HP drug resistance mutation gene detection (multiple PCR method), individualized regimens based on HP traditional drug sensitivity testing (E-test method) and empirical regimens in the Helicobacter pylori treatment.