Active clinical trials for "Helicobacter Infections"

The primary objective of this retrospective study was to assess the efficacy and safety of a bismuth quadruple regimen of a low-dose potassium-competitive acid blocker versus a standard-dose potassium-competitive acid blocker and a standard-dose proton pump inhibitor combined with amoxicillin and clarithromycin as the initial treatment of Helicobacter pylori infection.

The main objective of the study is to compare the effectiveness of moxifloxacin triple therapy with levofloxacin-based sequential therapy in terms of eradication rate, safety, and patient compliance.

South Korea has the highest incidence of gastric cancer worldwide and Helicobacter pylori infection is still prevalent. Clarithromycin-containing triple therapy is still the primary therapy approved by the Korean government. However, studies of antibiotic resistance has shown that regional resistance pattern to antibiotics such as clarithromycin, metronidazole, or quinolone. Recent study in Korea has shown that modified-quadruple therapy has comparable eradication rate to concomitant therapy. However, there has been no comparable study of modified-quadruple therapy with bismuth-containing quadruple therapy. The aim of this study is to compare the eradication rate of modified-quadruple therapy and bismuth-containing quadruple therapy with presenting phenotypic and genotypic antibiotic resistance profile.

The aim of the study is to compare the effectiveness of two therapeutic protocols in the treatment of Helicobacter pylori infection. The hypothesis of our research is that the two therapeutic options (hybrid and concomitant therapy) will be equally successful in the treatment of Helicobacter pylori infection. In other words, in both therapeutic groups we expect successful treatment of Helicobacter pylori infection in or more than 90 % of patients. In other studies, both therapeutic options have the same efficacy in treating H. pylori infection. On the other had there are no studies available in Croatia to compare the effectiveness of these therapeutic options so far, which is the main objective of our research. The secondary goals of our study will be: the existence of differences in the occurrence of possible side effects, as well as the compliance between patients in both therapeutic options. It is also our aim to compare the quality of life of patients with Helicobacter pylori infection before and after treatment, via a questionnaire that is common for this purpose. The study is expected to include a total of 120 patients (60 patients in each therapy group), and the planned duration is 12 months.

Non-bismuth quadruple therapies have been proposed as potential strategies in improving the efficacy of first-line treatments. The non-bismuth quadruple therapy in its concomitant variant consists of proton pump inhibitor, amoxicillin, nitroimidazole and clarithromycin given concurrently twice daily. As a result of concurrent administration this therapy has given better results according to some studies in comparison to sequential variants. However, this therapy, as well suffers from the aforementioned increase in antibiotic resistance. Therefore, the aim of this study was to compare concomitant non-bismuth quadruple therapy with a tailored therapy based on antibiotic strain susceptibility testing.

This study is conducted to investigate whether the efficacy of single-dose triple therapy (Esomeprazole 40 mg, Tinidazole 1 g, and Levofluxacine 500 mg) for 14 days is superior to double-dose lansoprazole 30 mg, amoxicillin 1 g and clarithromycin 500 mg for 14 days in the treatment of H pylori infection.

This study assessed eradication rate of dual therapy with high doses of Ilaprazole 40mg BID and Amoxicillin 750mg QID for 14 days on Helicobacter pylori infection.

The aim of the study is to evaluate the effects of the synbiotic Bifidobacterium animalis ssp. lactis B94 plus inulin addition to the standard triple therapy on Helicobacter pylori infection eradication rates in children.

To simultaneously compare the efficacies of 7-day triple, 10-day sequential and 7-day quadruple therapies for H. pylori infection in Taiwan. Consecutive H. pylori-infected patients were randomly assigned to a 7-day standard triple therapy (pantoprazole, clarithromycin, and amoxicillin for 7 days), a 10-day sequential therapy (pantoprazole and amoxicillin for 5 days, followed by pantoprazole, clarithromycin and metronidazole for a further 5 days) or a 7-day quadruple therapy (pantoprazole, clarithromycin, amoxicillin and metronidazole for 7 days). The end point is to evaluate the effectiveness of Helicobacter pylori eradication rates between three groups.

Background: Helicobacter pylori infection has been shown to be associated with the development of gastric cancer and peptic ulcer diseases. Eradication of H. pylori infection could reduce the occurence or recurrence of these diseases. However, it was estimated that 15-20% of patients would fail from first line standard eradication therapy and need second line rescue therapy. About 15-30% of patient would fail from second line therapy and need to be rescued with third line therapy. The commonly used salvage regimens include (1) Bismuth based quadruple therapy (combined with ranitidine or PPI plus two antibiotics) (2) Levofloxacin or moxifloxacin or rifabutin based triple therapy. However, Bismuth is not available in many countries and the administration method is complex. Its usage is limited by the high pill number and low compliance rate. In recent years, the concept of sequential therapy has been advocated in the treatment of H. pylori infection. The regimen includes a PPI plus amoxicillin for five days, followed by a PPI plus clarithromycin and metronidazole for another five days. The eradication rate in the first line treatment of sequential therapy had been reported to be as high as 90%. More importantly, it has been demonstrated that the eradication rate among patients with clarithromycin-resistant strains could be as high as 89%. According to the Maastricht III consensus meeting, it was recommended that susceptibility test should be done for patients who failed two treatments. Therefore, we aimed to assess the efficacy of susceptibility test driven sequential therapy as the third line therapy for those who fail from two standard eradication therapies. Methods: This will be a multi-center, open labeled pilot study Patients: Open labeled, non-comparative pilot study Testing for H. pylori infection: Before salvage treatment: either (1) any two positive of CLO test, histology, and culture or (2) a positive C13-UBT will be considered as failure of previous eradication treatment EGD with gastric biopsy will be done for H. pylori culture and susceptibility test After salvage treatment: C13-UBT will be used to assess the existence of H. pylori after 2nd or 3rd line salvage therapy Treatment regimens and assignment: D1-7: Nexium (40 mg, bid), Amolin (1 gm, bid) D8-14: Nexium (40 mg, bid), Flagyl (500 mg, bid) plus either one of the following according to antibiotic susceptibility test (1) Klaricid, 500 mg, bid or (2) Cravit, 250 mg, bid or (3) Tetracycline, 500 mg, bid Outcome Measurement: Primary End Point: Eradication rate will be evaluated according to Intent-to-treat (ITT) and per-protocol (PP) analyses Secondary End Point: the eradication rate according to antibiotic susceptibility before salvage therapy