Active clinical trials for "Digestive System Diseases"

The primary objective of this study is to obtain de-identified, clinically characterized, stool and plasma specimens for use in assessing new markers for the detection of neoplasms of the digestive tract.

The purpose of this study is to determine effect of veres needle entry and direct trocar entry on postoperative gastrointestinal functions.

The primary aim of this study is to evaluate the effect and impact of a technology which creates a virtual reality (VR), personalized representation of a patient's endoscopic findings in comparison our standard practice (SP). Our study will compare the level of knowledge, understanding and satisfaction the patient and family have between those receiving SP and those receiving both SP and VR.

Digestive Functional Disorders (DFD), represent 50% of medical check ups, the symptoms interfere with patients quality of life and generate high health costs. On the other hand, with the worldwide overweight and obesity increase,causing an over production of low-calorie products, which increase the non-caloric sweeteners (NCS) consumption. Hypothesis: A diet without NCS will reduce gastrointestinal symptoms in volunteers with dyspepsia and IBS. Objective: To asses the effect of a diet without NCS, on the gastrointestinal symptoms in patients with dyspepsia and IBS. Secondary Objectives: To compare the effect of a diet without NCS against a diet with NCS on anthropometry, changes in body composition, biochemical parameters, glucose and insulin. To asses the change in the gut microbiota using real-time PCR (polymerase chain reaction) Methodology: it will be an experimental, open, parallel, controlled study lasting 12 weeks, patients with dyspepsia or IBS will be randomized assigned to a diet with or without NCS. Laboratory studies, dietary and symptoms questionnaires, anthropometry measurements and faecal sample will be carried out. Analysis Results: A double data capture will be carried out to minimize errors, for the statistical analysis of using the Statistical Package for the Social Sciences (SPSS) version 25, descriptive statistics will be used to report the baseline data of the volunteers. Using means and standard deviation, the variables of gastrointestinal symptoms will be used a chi-square test and a p <0.05 will be considered significant. Different analyzes will be done to evaluate volunteers with IBS and those with dyspepsia. For the intestinal microbiota analysis, a comparison will be made between the percentages of Firmicutes, Bacteroidetes and Actinobacteria of sample 1 and 2 and a chi-square test will be performed considering a p <0.05 significant

This study will assess the development of gastrointestinal health in terms of digestive tolerability and immune-inflammatory response at the intestinal level comparing a conventional gluten-free cereal with a new cereal with prebiotics, probiotics and a very moderate amount of gluten. These are products adapted to infant feeding since 4 Months.

The research product, registered as a nutritional supplement (Ocoxin®, oral solution), manufactured by Laboratorios Catalysis S. L., comes in the form of single-dose vials of 30 ml. It will be used at a rate of 60 ml daily (1 vial every 12 hours). Our main objective is To evaluate the effect of Ocoxin®-Viusid® on the quality of life of patients with metastatic colorectal adenocarcinoma. Our hypothesis is that the administration of the nutritional supplement Ocoxin®-Viusid® it is expected to improve the quality of life and enhance tolerance to chemotherapy in at least 70% of patients.

Our main objective is to evaluate the effect of Ocoxin-Viusid on the quality of life of patients with advanced stomach cancer and esophagogastric junction. The Ocoxin-Viusid nutritional supplement is expected to improve quality of life and tolerance to treatment with Chemotherapy.

Background: The Portuguese National Health Directorate has issued clinical practice guidelines on prescription of anti-inflammatory drugs and COX-2 inhibitors, acid suppressive therapy and proton pump inhibitors, and anti-platelets. However, their effectiveness in changing actual practice is unknown. The objectives will be to compare the effectiveness of educational outreach visits in the implementation of clinical guidelines in primary care in Portugal against usual implementation strategies and to conduct a cost-effectiveness analysis of this method. Methods: The trial will be a parallel, cluster-randomized, unblinded, trial in primary care, with a 1:1 allocation ratio. This study will assess the effect of educational outreach visits on physician compliance with prescription guidelines. The general study hypothesis is whether educational outreach visits are superior to usual implementation of guidelines regarding the reduction of inappropriate prescribing (compliance with prescription guidelines). All National Health Service primary care units in the Lisbon (Portugal) region will be invited to participate. Units will be eligible if they are using an Electronic Health Record to issue prescriptions and have at least four doctors willing to participate. Doctors in intervention units will receive three educational outreach visits (one for each guideline) during a six months period, while the control group doctors will be offered an unrelated group training session (on using the international classification for primary care). Intervention visits will be one on one 15 minutes discussions conducted by guideline authors or trained family physicians at the physician's workplace. There are two primary outcomes, measured at the physician's level. One is the proportion of COX-2 inhibitors prescribed within the entire NSAID class, in defined daily doses 18 months after the intervention. The other is the proportion of omeprazole within the entire proton pump inhibitors class, in defined daily doses at 18 months post-intervention. Prescription data will be collected from the regional pharmacy claims database.

The Eosinophilic Gastrointestinal Disorders (EGIDS) Registry is a longitudinal study that does not involve medical interventions, but serves as a record of demographics, characteristics of disease and treatment, utilization patterns, quality improvement measures and clinical outcomes. The database is proposed so that epidemiologic research can be performed and current and accurate data can be obtained regarding practice patterns, age and gender distributions, efficacy of treatment, clinical outcomes and changes in quality of life.

Assessment of a new gastrointestinal symptom questionnaire in comparison to 2 well established and validated questionnaires that do not fully fit the requirements of an investigator concerned about gastrointestinal side effects in a patient without primary gastrointestinal disease.