View clinical trials related to Helicobacter Pylori Infection.
Filter by:More than half of the world's population is infected with Helicobacter pylori, a bacterium that colonizes the human stomach. Although most infected subjects live free of symptoms and disease outcomes (except superficial gastritis), only a few develop peptic ulcers or gastric cancer, while some others may develop non-ulcer dyspepsia. Current clinical practice for the management of peptic ulcer disease includes testing for and treating H. pylori, if present. Although there are triple therapies that contain 2 antibiotics plus a bismuth compound, a proton-pump inhibitor, or a H2-receptor antagonist which are effective at eliminating H. pylori in Europe and North America, these treatments are dramatically less effective in developing countries. Our recent meta-analysis showed quadruple therapies containing clarithromycin, amoxicillin, metronidazole and a proton pump inhibitor to be effective in the presence of clarithromycin or metronidazole resistance. However, this regimen has yet to be tested in a developing country. Therefore, in the current randomized clinical trial in Pasto, Colombia, we aim to examine the effectiveness of clarithromycin, amoxicillin, metronidazole with and without a proton pump inhibitor compared to the Food and Drug Administration approved 10-day regimen containing clarithromycin, amoxicillin and omeprazole. Since antibiotic therapy is most effective within a specific gastric pH range, and since mutifocal atrophy results in damage and loss of the acid producing parietal cells, we will test the efficacy of our modified therapy stratified by diagnosis of multifocal atrophic gastritis.
The purpose of this study is to evaluate the effect of Pylera when given twice a day. Pylera approved treatment schedule is 3 pills taken 4 times daily, in addition to omeprazole given twice daily. In this trial, subjects with confirmed Helicobacter Pylori infection will receive Pylera treatment and omeprazole twice daily.
Previous studies suggest that chronic idiopathic thrombocytopenic purpura is associated with Helicobacter pylori infection. The objective is to study the effect of Helicobacter pylori eradication on platelet count.
Successful H. pylori eradication therapy remains a challenge in medical practice. Despite promising data for first-line, second-line and rescue treatment options based on clinical trials as well as guidelines and expert recommendations, success rates can often not be reproduced in general practice. Rescue options for patients with failed initial or second-line therapy are definitely needed. The new fluoroquinolone moxifloxacin may represent an effective and save treatment option (in combination with a PPI and amoxicillin) for rescue therapy of H- pylori positive patients.However, optimal duration of therapy (7-day course vs 14-day course) has to be determined
Helicobacter pylori (HP) is a gram-negative bacillus responsible for one of the most common infections found in humans worldwide. By the early-to-mid 1990s, further evidence emerged supporting the link between the chronic gastritis of HP infection and malignancy in adults, specifically gastric lymphoma and adenocarcinoma. The potential of HP eradication for the prevention of gastric cancer was underlined. At the national consensus meeting held in Brussels in 1998, HP eradication was strongly recommended in past or current peptic ulcer diseases, regardless of activity, complication and post endoscopic resection of early cancer. Some patients received gastric surgery due to the complications of peptic ulcer such as bleeding or perforation in the pre-HP eradication era. Their HP infection status was not surveyed and unknown at the time. Afterward, some of them were not suggested to receive an eradication therapy and recovered from the operative procedure. According to the consensus to treat HP for a purpose to reduce the risk of gastric cancer, these patients were still under risk. There have been only a few surveys on the prevalence of persistent HP infection in patients who have undergone surgery. The aim of the study was to evaluate the prevalence and histological features of HP infection after a time course of partial distal gastric surgery.
To assess if a sequential treatment regimen better eradicates H. pylori than does a triple drug regimen in adults with dyspepsia or peptic ulcer disease.
Helicobacter pylori is recognized as a major gastrointestinal pathogen in developing countries. This microorganism infects up to 60% of children less than five years in those countries and is strongly associated with chronic gastritis and peptic ulcer disease in children and adults. The progression of gastritis to atrophy often leads to decreased gastric acid output, which is a well-known risk factor for anemia. Gastric acid is essential for increasing the bioavailability and absorption of non-heme dietary iron, the most important source of iron in developing countries. Numerous reports suggest that iron malabsorption secondary to low gastric acid output is a problem in developing world countries. It has been further observed that iron deficiency anemia is resistant to iron therapy particularly in these countries. In a recently completed study we observed an association of anaemia with H. pylori infection. We hypothesize that the poor bioavailability of iron in these countries could be related to H. pylori -induced low gastric acid output and we propose to investigate the role of H. pylori infection as a cause of anemia and treatment failure of iron supplementation in Bangladesh. A prospective, randomized, double-blind, placebo-controlled field trial is proposed among four groups ( 65 each) of H. Pylori infected children of 2-5 years of age with iron deficiency anemia. The children will be assigned to one of the four therapies: antibiotics alone (for H. Pylori eradication), antibiotic plus iron therapy, iron therapy alone, or placebo. Hemoglobin concentration, serum ferritin concentration, and transferrin receptor will be measured before and at 1 and 3 month after the intervention. We also propose a complementary study in an additional 20 children with H. Pylori infection and iron deficiency anemia to assess iron absorption with application of double stable isotopes. The change in hematological parameters will also be compared among the groups before and after the therapy. The results of this study are expected to have implications in the prevention and treatment of iron deficiency anemia in developing countries.
The purpose of this study is to determine if Helicobacter pylori (H. pylori) gastritis results in abnormal iron metabolism in patients with iron deficiency anemia (IDA), and to determine if this is due to strain variations in the H. pylori organism.
Based on a universal eradication of H. pylori in an offshore island (Matsu) with a high prevalence of gastric cancer as well as premalignant gastric lesion, we first examined the infection rate of H. pylori. Secondly, we evaluated the efficacy of clarithromycin-based triple therapy with a levofloxacin-based rescue treatment. And thirdly, we tested the hypothesis that whether the cure of H. pylori can reverse the premalignant gastric lesion. Fourth, we determine the cost-effectiveness of this intervention. The gene-environment interaction will be addressed regarding gastric cancer carcinogenesis. Finally, the incident rate of gastric cancer would be followed in this cohort.
Eradication rates of Helicobacter pylori (H. pylori) with standard triple therapy are disappointing, and studies from several countries confirm this poor performance. The study aimed to assess the eradication rate of a new sequential treatment regimen compared with conventional triple therapy for the eradication of H. pylori infection.