Gastritis

This is a randomized controlled trial comparing the efficacy and safety of two vonoprazan-based regimens: high-dose dual therapy (vonoprazan plus a single antibiotic) versus triple therapy (vonoprazan plus two antibiotics) for the treatment of H. pylori infection). Participants will be randomly assigned to receive either regimen for 14 days. The primary outcome is eradication rate , and secondary outcomes include adverse events and treatment adherence.

This Phase 4, multicenter, randomized, double-blind, active-controlled, non-inferiority study aims to evaluate the non-inferiority of Stoem Tab. compared to Stillen Tab. (Dong-A ST Co., Ltd.) in patients with acute or chronic gastritis. Participants will receive either Stoem Tab. or Stillen Tab. for 2 weeks. The primary outcome is the effective rate of gastric mucosal erosion at Week 2, assessed by upper gastrointestinal endoscopy and evaluated by an independent reviewer, defined as the proportion of participants achieving at least a 50% improvement in erosion score compared to baseline.

The study compare and evaluate the safety and pharmacokinetic characteristics between the administration of AD-229 and the administration of AD-2291 in healthy adults.

This study aims at evaluating efficacy and safety of Saccharomyces boulardii combined with bismuth-containing quadruple Therapy versus bismuth-containing quadruple Therapy(bismuth#esomeprazole#tetracycline and furazolidone) in H. pylori rescue therapy. It is hypothesized that Saccharomyces boulardii combined with bismuth-containing quadruple Therapy is superior to bismuth-containing quadruple Therapy. Patients with confirmed failure of H. pylori eradication will be randomized to one of the treatments described above. At week 6 follow-up visits, a urea breath test#rapid urease test or helicobacter pylori stool antigen test will be performed to confirm eradication.

Pathological biopsy before endoscopic submucosal dissection (ESD) the gastric lesion plays an important role in differentiating the pathological nature of the lesion and guiding treatment decisions. However, due to the influence of the materials used, the sensitivity of pathological biopsy is not satisfactory. Confocal Laser Endomicroscopy (CLE) is a technology that integrates a confocal microscope into an endoscope. It enables the acquisition of high-resolution microscopic images of the mucosal layer in real-time (with a magnification of up to 1000 times), and it is an optical biopsy technique. It has unique value in the determination of the pathological nature of gastric lesions. The main purpose of this study is to compare the sensitivity of pathological biopsy and CLE in differentiating the pathological nature of gastric lesions.

This study aims to evaluate the efficacy of Fexuclue tablets in improving gastrointestinal symptoms based on patient-reported outcomes (PROs), by comparing assessments before and after treatment.

The goal of this is to learn about the effectiveness and feasibility of a novel AI- assisted Mobile Capsule Gastroscopy (MCG) system for detecting gastric pathologies in elderly and high-risk populations. The main question it aims to answer is: Can MCG effectively detect gastric pathologies, including common gastric diseases, gastric cancer, and precancerous lesions, in elderly and high-risk individuals at community health centers? Participants will: Epidemiological, diagnostic, and post-MCG follow-up data generated during participants' involvement in the gastric pathologies public screening program will be collected.

The goal of this clinical trial is to evaluate the diagnostic accuracy of the AI-integrated Capsule Gastroscopy (ACG) system in simulated home-use conditions for detecting upper gastrointestinal (UGI) abnormalities. It will also compare the diagnostic accuracy and time efficiency of AI-assisted interpretation versus manual reading of ACG data. The main questions it aims to answer are: What is the diagnostic accuracy of the ACG system, using conventional esophagogastroduodenoscopy (EGD) as a standard of reference? Does AI-assisted ACG reading improve diagnostic accuracy or reduce reading time compared to manual ACG video reading? Researchers will compare ACG results to conventional EGD findings (standard of reference) to determine if ACG can serve as a reliable method for UGI disease detection in home scenarios. Participants will: Undergo an ACG examination in a simulated home environment. Complete an EGD procedure within 24 hours post-ACG ingestion.

2.2 Aim 1. To evaluate the association between H. pylori infection and the components of metabolic syndrome. 2. To assess the relationship between the histopathologic features of chronic gastritis evaluated using USS and the components of metabolic syndrome in both H. pylori-positive and H. pylori-negative patients. 2.4. 2- Study Setting: Department of Pathology, Faculty of Medicine, Assiut University. c. Sample Size Calculation: Sample size was calculated using Epi- Info7. Based on The H. pylori-positive patients were more likely to develop dyslipidemia, and 77.47% of individuals testing positive for H. pylori have higher total cholesterol levels (11). With a confidence limit of 5% and a confidence level of 80%, the minimum number of patients required for this study is 114 cases 2.4.4 -Study tools The study will include 114 patients diagnosed with gastritis in the Gastroenterology unit and scheduled for upper gastrointestinal endoscopy with stomach biopsy. Written informed consent will be obtained from all patients participating in the study. All subjects will be asked to complete a medical history questionnaire, followed by a physical examination (height, body weight, waist circumference, and blood pressure) and laboratory investigations (fasting blood glucose, liver function test, total cholesterol, triglycerides, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol( The endoscopy will be carried out by the same specialist, and it will assess chronic and acute gastritis, atrophic gastritis, and metaplasia. The endoscopist will obtain five biopsy samples: two from the antrum, two from the corpus, and one from the incisura. All biopsies will be processed at the Pathology Department laboratory and embedded in paraffin blocks. For histological examination, two tissue sections will be stained: hematoxylin and eosin (H\&E) and Giemsa stain. Each sample will undergo a double-blind review by two independent pathologists according to the USS (HP, neutrophils, mononuclear cells, atrophy, and intestinal metaplasia), and each variable will be graded semi-quantitatively. Statistical analysis using suitable tests will be used to assess our results. 2.4.5 -Research outcome measures: 1. Primary (main): to evaluate the association between H.pylori gastritis and its relation to metabolic syndrome components 2. Secondary (subsidiary): 2.5-Data management and analysis : Data collection All subjects will be asked to complete a medical history questionnaire, followed by a physical examination (height, body weight, waist circumference, and blood pressure) and laboratory investigations (fasting blood glucose, liver function test, total cholesterol, triglycerides, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol. Computer software Statistical package for social science (SPSS) program v. 25 (IBM, August 2017).