Active clinical trials for "Dyspepsia"

Dyspepsia is a very common gastrointestinal disease, presented as predominant symptom of upper abdominal pain. Underlying causes for dyspepsia can classified as organic or functional dyspepsia. Some medications (eg. non-steroid anti-inflammatory drugs (NSAIDs)) were associated with higher frequent incidences of organic lesions. Multiple medications showed an increased trend with aging of the population and multimorbidity. Multiple medications were suggested to be strongly relate to adverse drug events (ADEs), adverse drug reactions (ADRs), drug-drug interactions, and drug-disease interactions, which had been reported to lead to higher incidences of some diseases, including fractures, cognitive impairment and malnutrition. However, it was unknown if multiple medications was associated with more incidences of organic dyspepsia.

The goal of this observational study is to learn about gastric myoelectric activity in children with GI symptoms. The main question it aims to answer is which patterns or signals are associated with GI symptoms as measured by a body surface gastric mapping (BSGM) device. Participants will have their stomach activity recorded for up to 4 hours using the BSGM device and log real-time symptoms. Researchers will compare the recordings of healthy children and children with GI symptoms to define abnormal GI patterns.

This is a comprehensive pathophysiological study assessing various gastric functions in patients with diabetes mellitus. The investigators aim to examine the stomach with various measurement devices to gain information about its different functions and malfunctions. After the initial measurements, the examinations will be repeated after a year in each patient. Changes in the measurement values will be examined and their relations to each other and to the overall health of the patients will be investigated. For example it is hypothesised that diabetic patients also suffering from functional dyspepsia or gastroparesis will also show some changes in the function of the pyloric muscle.

The purpose of this prospective cohort study is to compare upper GI symptoms and endoscopy findings in Canada with Japan and Iran, and correlate this with the upper GI microbiome. The investigators plan to recruit 500 new patients referred for upper GI endoscopy in Canada (McMaster University) and 500 in Japan (Tohoku University Hospital) and 500 from Iran (Tehran University of Medical Sciences). Written consent will be obtained from all participants. Patients will complete three symptom questionnaires and a demographic one before endoscopy. Then saliva collection device will be applied for collecting saliva and microbiota from the oral cavity. Esophagogastroduodenoscopy (EGD) will be performed thereafter and brushing of the esophagus, stomach, and the duodenum will be done using a sterile sheathed brush (one for each site) to sample collect gut microbiota and gastric biopsies will be done for assessing H.pylori status. In addition, a group of these patients will undergo measurement of nitrate reductase activity (NRA) in their oral cavity. This will be done on twenty erosive gastro-esophageal reflux disease (GERD) patients, twenty non-erosive GERD patients, and twenty patients without any endoscopic or clinical GERD. This latter part of the study will be done at the Canadian and Iranian sites only. Bacterial community profiling of the 16S rRNA gene will be carried out using paired end reads of the V3 region. Triplicate amplifications will be pooled for 150 or 250 nt paired-end Illumina sequencing in the McMaster Genome Center. For specific substudies analysis of the mycome will also be carried out.

Intestinal parasitic infections such as Giardia lamblia, Entamoeba histolyica and Enterobius Vermicularis are among the most common infections worldwide.So parasitic infections are considered one of the major health problems in the world especially in developing countries. Helicobacter pylori is a gram-negative,helical-shaped,motile bacillus bacterium,which colonizes the gastric mucosa. H.pylori bacterium secretes urease,a special enzyme that converts urea to ammonia. Ammonia reduces the stomach's acidity .This risk factor allows pathogenic intestinal protozoa such as G.lamblia to take the opportunity to cross through the stomach's increased pH and cause disease.

Functional digestive pathologies are defined by symptoms such as functional dyspepsia, gastroesophageal reflux, irritable bowel syndrome, gastroesophageal reflux, functional constipation, functional diarrhea, functional bloating, the opioid-induced constipation and fecal incontinence, without organic substratum. These diseases are very common in the general population (20%) and represent the first cause of consultation in city gastroenterology. The objective of this study is to collect prospective clinical and tests data and a biological collection from biological samples collected as part of the standard care. This collection could identify diagnostic or prognostic markers of the therapeutic response.

The SIMBA Capsule is a small, single-use, ingestible capsule that allows for the non-invasive sampling of small bowel contents using purely mechanical means. The study will compare the microbial and metabolomics analysis from the sample collected with the capsule series, to same-participant symptom questionnaires and stool microbial analysis.

To evaluate the effects of tradipitant relative to placebo on gastric motor functions, satiation, and postprandial symptoms in patients with functional dyspepsia.

The purpose of this study is to see if using a micro-current through a device called a TENS (Transcutaneous Electrical Nerve Stimulator) unit helps to improve functional gastrointestinal disorder (FGID) symptoms in children by stimulation of the vagus nerve. The study will compare two methods of stimulation to determine if there is a difference in the two methods.

The objectives of this study are to determine the safety and efficacy of IW-9179 administered to patients with functional dyspepsia (FD).