View clinical trials related to Peptic Ulcer.
Filter by:Although all PPIs are effective, there are some differences in their clinical performance, particularly in terms of the degree and speed of gastric acid suppression. Few data are also available about their effect of the pathophysiological mechanisms of gastritis and peptic ulcer disease. Aim of the present study is to investigate the effect of therapy with esomeprazole or rabeprazole on the mechanism of pathogenesis of gastritis and particularly on the pattern of release of pro- and anti- inflammatory cytokines associated to peptic ulcerative process by the gastric mucosa.
Bleeding peptic ulcers are one of the major causes of morbidity and mortality for hospital emergency admissions.The initial treatment is endoscopic therapy followed by intravenous omeprazole. However the optimal dosage of omeprazole is not known. We conducted this study to find out the optimal dosage in such clinical scenario.
The purpose of this study is to evaluate whether HZT-501 is effective in reducing the rate of development of ibuprofen-associated ulcers in patients who require long-term daily use of ibuprofen.
The purpose of this study is to compare the effect of esomeprazole 20 or 40 mg once daily versus placebo on the occurrence of peptic ulcers during 26 weeks in subjects on continuous low-dose acetylsalicylic acid.
High intravenous dosage of Proton Pump Inhibitors is not better than standard dosage in bleeding peptic ulcers successfully treated by endoscopic therapy
AGN 201904, a proton pump inhibitor, versus esomeprazole in the prevention of stomach or upper intestinal damage following administration of high-dose aspirin in healthy volunteers
Endoscopic treatment of bleeding peptic ulcers is effective to prevent rebleeding. Adjuvant medical treatment to increase gastric pH may further decrease rebleeding. Recent studies on potent acid suppression by proton pump inhibitors (PPI) demonstrated the efficacy in preventing rebleeding. Lau demonstrated that high dose intravenous infusion of omeprazole decreased rebleeding in peptic ulcers with stigmata of recent hemorrhage. There is little data regarding the effect of pantoprazole on bleeding peptic ulcers. Furthermore, the optimal dose of PPI is unknown. Few studies have included measurement of gastric pH in addition to clinical outcome. This study compares the effect of two doses of intravenous pantoprazole with no acid suppression in bleeding peptic ulcers after endoscopic therapy. In addition to the usual clinical endpoints, gastric pH is monitored to study the relation of pH elevation and the clinical outcome.
Gastroesophageal reflux disease (GERD) is a medical condition affecting the stomach and esophagus. GERD might occur when the lower esophageal sphincter does not close properly and stomach contents leaks back (refluxes) into the esophagus. GERD is one of the most common medical disorders, with estimates of up to 50% of adults reporting reflux symptoms. One of the main symptoms of GERD is heartburn. It occurs when the acidic content from the stomach touches the lining of the esophagus, causing a burning sensation in the chest or throat. Proton pump inhibitors such as pantoprazole can relieve symptoms of GERD and peptic ulcers in a large proportion of patients. Additionally, long-term treatment with proton pump inhibitors may be needed for patients with chronic ulcer disease not caused by H. pylori (H. pylori is a stomach-dwelling bacteria which is often associated with ulcers in the stomach or duodenum). The aim of the study is to evaluate the long-term effect of pantoprazole in patients with chronic gastric acid-related complaints. The study duration consists of a 5-year treatment period. Pantoprazole will be administered once daily. The study will provide further data on long-term safety, tolerability, and efficacy of pantoprazole.
This study is being carried out to see if constant 3 days infusion of Nexium is effective in preventing rebleeding after an endoscopic treatment.
Helicobacter pylori (Hp) is a major cause of chronic-active gastritis and primary duodenal ulcers, and is strongly linked to gastric cancer. Most Hp infections worldwide are acquired in childhood. Why some individuals develop symptomatic disease is unclear and, until recently, no studies critically evaluated the role of pediatric Hp strains and/or host factors in disease outcomes. Over the past 5 years of National Institutes of Health (NIH) funding, 486 children from Atlanta, Cleveland, and Miami were enrolled; 184 (38%) were Hp-infected. Race (African American) and younger age, in conjunction with Hp strains expressing cagA and vacAs1B, were shown to be risk factors for both esophageal and gastric disease, suggesting a different disease paradigm from Hp-infected adults. Using the updated Sydney system, the investigators demonstrated a histopathologic spectrum in children, which included novel observations of atrophic gastritis with intestinal metaplasia. Overall hypothesis for competitive renewal: disease manifestations in Hp-infected children are influenced by specific host factors (i.e., race, immune phenotype), environmental exposures, and specific virulence factors of infecting Hp strains. Specific aims: 1. Using well defined cases and controls, further characterize specific host factors and environmental exposures contributing to symptomatic childhood infection emphasizing targeted enrollment in specific age, gender and demographic strata to facilitate detection of significant differences not attained previously and follow-up of 2 established specific cohorts to ascertain immune response natural history. 2. Utilize gene-array technology for the whole Hp genome assessment and bacterial gene expression of specific virulence determinants associated with pediatric Hp strains. 3. Further characterize the host immunologic and mucosal response in Hp-infected children. Hp-infected symptomatic endoscopy cases at the investigators' established 3 clinical centers of high, moderate and low Hp prevalence will be compared with age-matched Hp-infected asymptomatic and uninfected symptomatic controls. Two geographically and demographically distinct centers have been added to provide additional geographic and subject representativeness to the patient cohort. The updated Sydney system will be employed to assess gastric histopathology severity and phenotype in newly enrolled cases in specific age, gender and demographic strata and follow-up of the two "novel" cohorts established in the past 5 years: a) atrophic gastritis; and b) esophageal and gastric disease groups enabling a comprehensive, multivariate evaluation of the natural history of Hp-infected children in two distinct disease paradigms. Using molecular methods (multiplex [MP]-PCR, RT-PCR) and a micro ELISPOT assay on peripheral blood mononuclear cells (PBMCS), Th1, Th2, Th3 or balanced Th1/Th2 response will be determined to further characterize the Hp-infected child's immune response phenotype. The investigators propose to further their previous work with critically lacking studies from a multivariate approach, leading to a better understanding of the gastroduodenal disease sequelae and overall pathobiology of Hp infection in humans.