Active clinical trials for "Gastrointestinal Diseases"

To develop novel optical imaging technologies for use as a non-destructive and minimally invasive tool for detection and diagnosis of various diseases that affect the gastrointestinal system.

The purpose of this prospective registry is to assess long-term data on efficacy, safety and clinical outcome of Therapeutic Endoscopic ultrasound (T-EUS) . The registry will evaluate technical feasibility, clinical outcome, safety profile and overall clinical management through medical chart review. The procedures we are evaluating are all clinically indicated and will not be prescribed to someone to participate in this research study.

This study will be a prospective, tandem-designed study to determine the proportion of clinically significant missed lesions when using a side- or oblique-viewing endoscope as compared to the standard forward-viewing endoscope. Utilizing standard endoscopy protocols in current practice at Brigham and Women's Hospital, consecutive adult patients undergoing ERCP for traditional reasons will undergo back-to-back tandem EGD and ERCP examinations. This process entails an EGD performed by an attending gastroenterologist first. Next, a second blinded attending gastroenterologist will perform ERCP immediately after index EGD. Both endoscopists will note any clinically significant findings, independent of the other providers procedural findings. Clinically significant findings defined as endoscopic findings that alter patient management (i.e., esophageal varices, peptic ulcer disease, hemorrhage, mass, etc.) during EGD and ERCP will be recorded. As previously stated, some institutions already routinely perform EGD with every ERCP.

Eosinophilic gastrointestinal disorders (EGIDs) are a heterogeneous group of emerging chronic inflammatory diseases that may affect different gastrointestinal (GI) tracts. Based on the anatomical site involved, EGIDs are distinguished into eosinophilic esophagitis (EoE) and non-esophageal forms, which are subdivided into eosinophilic gastritis (EoG), gastroenteritis (EoGE), and colitis (EoC). EoE is considered the prototype of EGIDs. Since the first description of a case series of patients with EoE, fundamental scientific advances have been achieved, culminating in the redaction of international diagnostic and therapeutic guidelines. In contrast to EoE, non-esophageal forms of EGIDs are still a clinical enigma with evidence limited to a few retrospective studies. In the last decade, an increase in the prevalence of EGIDs has been observed in the pediatric age. Unfortunately, the epidemiology of EGIDs in Italy is still inconsistent and clear estimates are not available. Firstly, this study will allow us to assess and clarify several clinical and epidemiological aspects of pediatric EGIDs, in particular: prevalence and incidence of pediatric EGIDs in Italy, the clinical features and potential phenotypes of pediatric EGIDs with potential impact on therapy and management, diagnostic work-up and adherence to the EoE international guidelines to improve the management, quality of care, and quality of life of affected patients. This study has no ethical problems since EoE patients are treated according to international guidelines and those with non-esophageal EGIDs according to the latest scientific evidence.

A community-based "test and treat" intervention integrating point-of-care HCV RNA testing, non-invasive liver disease assessment and linkage to care will lead to a reduction in HCV prevalence among people attending Aboriginal health services.

Background: Ongoing and future research projects that study gastrointestinal diseases depend on access to biological samples and clinical data. Researchers want to study people who are seen and treated for these diseases. This may help them assess and treat these diseases better in the future. Objective: To collect data and samples from people being seen and/or treated for gastrointestinal problems at NIH, to use in future research. Eligibility: Adults aged 18 and older who have known or suspected gastrointestinal disorders or need screening, treatment, or follow-up per current medical guidelines. Design: Participants will be screened with a physical exam. Their medical records will be reviewed. Participants will be seen by doctors based on the ailment they have. Their condition will be treated just like it would at a doctor s office. But the data and samples collected will be used for future research. Participants may give blood, urine, and/or stool samples. If participants have an endoscopy or colonoscopy as part of their standard care and samples are taken, they may be asked to give their leftover samples to NIH. Or, they may be asked to have extra samples taken for NIH to use. These samples may include gastric acid and/or tissue from the lining of the stomach or intestines. If samples are not taken as part of their standard care, they may be asked to have samples taken for NIH to use. Data will be stored at NIH. The data systems are password protected. Samples will be coded. Participants will take part in the study for as long as they agree to be seen for their disease....

The investigators will conduct a multicenter cross-sectional study to discover symptom characteristics, quality of life, severity of anxiety and depression, status of lactose intolerance and treatment satisfaction of current Chinese Medicine (CM) regimens of outpatients with FGIDs. In the meanwhile, the investigators will also analyze the characters of CM patterns and corresponding elements, then explore the potential relationship between CM patterns and FGIDs' subtypes.

Researchers are trying to determine whether certain microbiome cause cancer or whether they are part of the microbiome in the gut due to the presence of cancer.

To assess antimicrobial resistance rates and minimal inhibitory concentrations in H. pylori isolated from patients with upper gastrointestinal disease with long-term period.

Bowel dysfunction has been proven as the most common complication after pull-through(PT) of Hirschsprung disease(HD) ，which may persist to adulthood and lead to social problems.The reason of bowel dysfunction is complicated and the risk factors were not defined.