Active clinical trials for "Digestive System Diseases"

The inhibitory effect of low dose GLP-1 is investigated on prandial motility of the stomach, duodenum and jejunum in vivo in humans. Supplementary in vitro studies on the mechanism of action of the GLP-1 inhibition of motility as carried out on muscle strips from the upper gastrointestinal tract in man.

The purpose of this study is to evaluate the effect of regular consumption of probiotic milk in preventing illnesses in Finnish children attending day care centres, and possible cost-benefits that could be associated with fewer illnesses.

The primary objective of this clinical trial is to test the tolerance and practicality of the new device Module AOX. The secondary objective is to determine the changes in oxidative, antioxidative status, plasma free amino acids, and various immune parameters in critically ill patients receiving the enteral nutrition with and without using Module AOX.

This is a quality improvement health services study in the Division of Gastroenterology at Beth Israel Deaconess Medical Center (BIDMC).

Patients with fat malabsorption due to Crohn's disease, ulcerative colitis, or other causes including cystic fibrosis, among others, or who have undergone gastric bypass have increased incidence of vitamin D deficiency relative to the general population. Given that vitamin D is fat soluble and absorbed in the proximal small intestine, it has been documented that vitamin D deficiency in people with a fat malabsorption syndrome is due to decreased absorption of vitamin D. The amount of vitamin D produced from winter sunlight (in Boston, MA) and dietary sources will negligibly raise blood vitamin D levels in these patients, and oral vitamin D supplementation may have limited efficacy due to malabsorption. A variety of UV light sources have been developed and sold as in-home tanning devices and to produce vitamin D in reptiles. The efficacy of correcting vitamin D deficiency by the skin exposure to an artificial source of UVB radiation in patients with fat malabsorption syndromes (Crohn's disease, ulcerative colitis, or cystic fibrosis) or after gastric bypass surgery has not been studied. The investigators have conducted a pilot study in healthy adults that demonstrated that exposure to the lamp raised the blood level of 25-hydroxyvitamin D with no side effects. The main purpose of this study is to evaluate the effect of the FDA approved artificial source of ultraviolet (UVB) radiation (Sperti® lamp) in improving vitamin D status in patients with fat malabsorption syndromes and patients who have undergone roux-en-Y gastric bypass surgery.

The Transition Navigator Trial (TNT) is a pragmatic randomized controlled trial evaluating the effectiveness of usual care plus a patient navigator service versus usual care plus newsletters and other educational materials, to improve transition outcomes among adolescents aged 16-21 who have chronic health conditions requiring transfer to adult specialty care. The study will provide urgently needed data to guide health care providers and policy makers regarding the provision of coordinated transition care. These results have the potential to: Change care delivery Improve health outcomes Improve the experiences of young adult transition to adult care

This is a randomized, controlled, 2x2 cross-over study to assess the effects of cocoa solids on gastrointestinal transit, post-prandial sensation and well-being. Additionally functional brain imaging will be applied to identify regions of brain that are activated or inactivated by cocoa ingestion. Healthy subjects will be recruited and randomized to receive either dark chocolate (70% cocoa solids) or white chocolate (0% cocoa solids) in addition to their normal diet in randomized order. Reference standard methodology will be applied to measure gastric emptying, oro-caecal and colonic transit time. Dark and white chocolate (100g, ~500kcal, ~50% fat) will be consumed with radio-opaque markers on three consecutive days. On the third day chocolate ingestion will be followed by measurements of postprandial brain activity using FDG-Positron Emission Tomography. Additionally colonic transit will be assessed based on the number and distribution of radio-opaque markers in the colon. On the fourth day gastric emptying and oro-caecal transit time will be assessed by scintigraphy after ingestion of a dark or white chocolate mousse test meal (both 150g, ~500kcal, ~50% fat). During both interventional studies pre- and post-prandial satiety and dyspeptic symptoms, well-being and mood will be recorded. Additionally, validated questionnaires will assess digestive comfort and well-bring at the end of each study day. These results will deliver comprehensive information about the effects of cocoa on gastrointestinal transit and sensation.

This is a Phase 1, multicenter, nonrandomized, open-label, parallel-group study in participants with mild or moderate hepatic impairment, and in participants with normal hepatic function. Degrees of hepatic impairment will be determined during screening by the participant's score according to Pugh's Modification of Child's Classification of Severity of Liver Disease. Participants will be enrolled in Groups 1 through 3 as follows: Group 1 (mild hepatic impairment): A total of approximately 8 participants with a Child-Pugh score of 5 to 6. Group 2 (moderate hepatic impairment): A total of approximately 8 participants with a Child-Pugh score of 7 to 9. Group 3 (normal hepatic function): Approximately 8 to 16 participants will be matched to Participants in Groups 1 and 2. Normal hepatic function participants are allowed to match multiple hepatic impairment participants. Participants will be matched by sex, age (± 10 years), weight (± 20%), and smoking status.

Unsedated or slightly sedated colonoscopy has fast recovery time, less cost and lower or no incidence of drug-related side effects. May be slightly painful or discomforting for the patient. Based on numerous recent reports, the investigators designed this randomized controlled trial hypothesizing that the use of warm water irrigation versus air insufflation during the insertion phase of colonoscopy might increase the global tolerability of the examination and the proportion of patients undergoing complete colonoscopy without sedation or with a low dose of sedatives.

It is hoped that different forms of the same medicine, called PVP001, PVP002, and PVP003, will help people with celiac disease. Both healthy adults and adults with celiac disease will take part in this study. There are many main aims of the study. To check if participants have side effects from different forms of the study medicine. These forms are called PVP001 (liquid in a cup), PVP002 capsule, and PVP003 tablet. To check how well PVP003 breaks down gluten. To check how much PVP003 participants can take without getting side effects from it. The study is in 4 parts. At the start of each part of the study, the study doctor will check to determine who can take part at the first study visit. Different groups of participants will be in different parts of the study. In all parts of the study, some participants will take 1 of the 3 forms of study medicine. Others will take a placebo. In this study, a placebo will look like the form of study medicine but will not have any medicine in it. This means that a placebo can either look like PVP001 liquid in a cup, the PVP002 tablet, or the PVP003 tablet. In Part 1, different small groups of participants will take lower to higher doses of PVP001 or PVP002 or a placebo. This is to work out the best dose of study medicine to take in other parts of the study. After treatment, participants will regularly visit the clinic to check that they have no problems with their treatment, including any side effects from their treatment. In Part 2, different small groups will take different doses of PVP001 or PVP002 or a placebo, either with or without a meal that has different amounts of gluten in it. This is to check if PVP001 or PVP002 has broken down gluten in the body. Participants will visit the clinic after treatment to check how much gluten has been broken down in the body. In Part 3, different small groups will take different doses of PVP003 or a placebo, either with or without a meal that has gluten in it. This is to check if PVP003 has broken down gluten in the body. Participants will visit the clinic after treatment to check if more gluten has broken down in the body. In Part 4, different small groups will take PVP003 or placebo 3 times a day for 5 days. After treatment, participants will visit the clinic to check that they have no problems with their treatment, including any side effects from their treatment.