View clinical trials related to Irritable Bowel Syndrome.
Filter by:Probiotics are defined as 'mono- or mixed cultures of live micro-organisms which, when applied to animal or man, beneficially affect the host by improving the properties of the indigenous flora'. Certain probiotics possess potent antibacterial and antiviral properties. Probiotic antibacterial activity may derive from the direct secretion of bacteriocins, the elaboration of proteases directed against bacterial toxins or through their ability to adhere to epithelial cells and thus exclude pathogens. The antiviral properties of some probiotic organisms, including the stimulation of interferon production, together with the well-documented efficacy of certain probiotics in the therapy of rotavirus diarrhea suggests the potential for a role for these agents in PI-IBS. The efficacy of some probiotics in preferentially relieving 'gas-related' symptoms may be related to qualitative changes in the colonic flora, as described earlier, or through the suppression of Small intestinal bacterial overgrowth (SIBO) , as there are reports of efficacy of probiotics in SIBO. The aim of the proposed study is to investigate whether the probiotic preparation "co biotic" can change the composition of fecal bile acids, fatty acids and bacterial composition, and whether such changes, if they occur, are correlated to a change in the symptoms of patients with IBS. Materials and methods: Patients diagnosed as having IBS by the Rome III criteria will be included in the study. Study subjects will be interviewed by a physician who will asses the diagnosis of IBS according to the Rome III criteria. Subjects will sign an informed consent and fill an IBS questionnaire and a health related quality of life questionnaire, A fecal sample will be obtained The subject will receive the probiotic product in a dose of 2 tablets/day, or a placebo containing all the active ingredients in the probiotic capsule, besides the bacteria, for 4 weeks. They will then enter a washout period of 2 weeks in which they will not receive anything, and then another 4 weeks in which they will receive the probiotic product in a dose of 2 tablets/day, or a placebo. Patients will be randomized so that they will receive the study drug for 4 weeks and the placebo for 4 weeks, in a double-blinded fashion. Thus each patient will be his own control.
The study will recruit 80 out-patients diagnosed with Irritable Bowel Syndrome from a gastroenterological clinic. The recruitment will be consecutive with all patients receiving the diagnosis being offered to participate. After recruitment and 3 week baseline measure of IBS symptoms they will be randomised to either 10 weeks of internet delivered CBT or waiting list. After treatment IBS-symptoms are measured again to assess treatment effectiveness. All patients on waiting list are offered the same treatment as patients randomised to treatment. All patients are assessed 12 months after completion of treatment. Patients in treatment condition are hypothesized to experience significant reduction IBS symptoms and quality of life compared to patients on waiting list.
Objective: Randomized, double blind, placebo-controlled, crossover, clinical trial to examine the effects of the food additive glutamate (in the form of MSG) on IBS and fibromyalgia. Setting and Subjects: The Fibromyalgia Research Database at OHSU will be utilized to identify and recruit fibromyalgia patients who also have IBS to OHSU study centers. Intervention: Approximately 60 male and female subjects aged 18-75 will be placed on a 1-month glutamate-free elimination diet. Those that respond positively to the diet (we are estimating 30-40 subjects), will then be randomized to receive either a citrus drink containing 5 grams of MSG; or placebo (the citrus drink alone)on three consecutive days one week apart. The investigators are hypothesizing that those who react positively to the elimination diet will have symptom occurrence statistically more frequently when given the glutamate challenge, than when given placebo.
About 15 to 20 percent of individuals living in the United States have chronic abdominal pain, often of unknown origin, which is often difficult to diagnose and treat. One possible cause of chronic abdominal pain is an inflammation of the intestines, but it is not known whether the two are related. Furthermore, although overweight people tend to be more likely to have increased inflammation, it is not known whether there is a connection between increased body weight and chronic abdominal pain. This study will examine the relationship between symptoms of chronic abdominal pain and intestinal inflammation by comparing the medical test results of normal weight and overweight patients who have a history of chronic abdominal pain. This study will include 224 subjects, who must be men and women between the ages of 13 and 45. Half the subjects will be healthy participants, and half will have had chronic abdominal pain of unknown origin for longer than 6 months. Female participants must take a urine pregnancy test before starting the study, and will not be allowed to participate if the test is positive. During the study, patients will visit the NIH Clinical Center on two occasions for testing. On the first visit, patients will provide a medical history, including information about current medications or natural remedies and tobacco and alcohol use, and will also fill out questionnaires to provide information about symptoms, current levels of gastrointestinal pain, and general quality of life. The study researchers will conduct a physical examination, measure patients height and weight, and draw blood for testing. Patients will be asked to not eat or drink anything for 8 hours before the second visit, and will be asked to bring a bathing suit and a swim cap to the Clinical Center. On the day of the visit, patients will fill out questionnaires to provide information about symptoms, current levels of gastrointestinal pain, and general quality of life. Patients will also provide a blood sample for testing. Researchers will measure patients blood pressure and heart rate, height, weight, waist/hip circumference, and intra-abdominal measurement. Patients will also be asked to put on the bathing suit and swim cap to have their body fat measured using a machine called the BOD POD. To test the gastrointestinal system, patients will then be asked to drink a sugar-based test solution, and researchers will collect all voided urine for the next 5 to 6 hours. (Patients may drink water during this time.) On either Day 1 or Day 2 of the study, patients will sip, swish and spit an additional sweet taste solution. Patients will sip, swish, and spit different concentrations of this sweet taste solution, for a total of 25 tastings of this solution. Subjects will then complete questionnaires about their sweetness preferences related to these 25 tastings.
The purpose of the study is to evaluate the safety, tolerability, and effectiveness of LX1031 versus a placebo control in subjects with non-constipating irritable bowel syndrome.
The purpose of this study is: 1. To identify specific set of proteins in the cerebrospinal fluid (fluid surrounding the brain and the spinal cord), that are believed to be seen in Chronic fatigue syndrome (CFS) patients, but not in healthy controls (HC). A similar study that the investigators had conducted before,suggested that significant changes in proteins in the cerebrospinal fluid may be due to the fundamental pathology of this disorder. 2. Increased cerebrospinal fluid pressure (pressure that helps the cerebrospinal fluid to move around the brain and the spinal cord), may be related with certain symptoms like headache, sleep problems, light headedness, increased pain, excessive tiredness (fatigue) even with minimal work and memory problems. 3. Assessment of Autonomic Nervous system function (Sympathetic nervous system)between the CFS and HC. 4. Perform Lung Function Testing or pulmonary function test to estimate the lung capacities and score shortness of breath while performing breathing maneuvers. 5. Dolorimetry (18 tender point test) for assessment of pain threshold. 6. Capsaicin skin test 7. Allergy skin test
Fructo-oligosaccharides are known as prebiotic ingredients to modulate the composition of the intestinal microbiota and particularly to stimulate the growth of Bifidobacteria. Imbalance of the intestinal microbiota such as reduction of Bifidobacteria is implicated in Irritable Bowel Syndrome (IBS). Thus the objective of the study is to evaluate the effect of fructo-oligosaccharides to improve IBS score and to explore which modifications of the microbiota are responsible of this improvement.
Multi-centre, double-blind, randomised, placebo-controlled, parallel group study.
The aim of this study is to determine the efficacy of the administration of Bifidobacterium bifidum R0071, Bifidobacterium longum R0175, Lactobacillus helveticus R0052, Lactobacillus Delb. SSP bulgaricus R9001, Lactobacillus rhamnosus R0011, Lactococcus Lactis SSP. lactis R1058 et Streptococcus thermophilus (Probaclac™) given twice a day for 4 weeks on digestive symptoms evaluated subjectively in children aged 8 to 18 years with irritable bowel syndrome versus placebo. This study is a double-blind randomized controlled study. 84 children will included. After inclusion, a 15-day period of observation precedes the randomization at Day 0. Patients receive Probaclac or placebo for 4 weeks. At the end of the treatment period, patients are followed for a 2-week period of follow-up. 4 visits and 4 phone calls are planned during the study.
Irritable bowel syndrome (IBS) affects approximately 10-15% of the adult population. This condition is characterized by abdominal pain, altered bowel habit, abdominal bloating and reduced quality of life. Options for treating IBS include pharmacotherapy, psychotherapy, hypnotherapy and cognitive behavior therapy (CBT). Available data on the effectiveness of CBT in IBS patients in Israel are scarce. The aim of the present study is to assess effectiveness of CBT as compared with standard therapy for IBS patients in Israel The course of CBT consisted of up to six 40 min sessions, and included education about IBS and techniques to reduce focusing on symptoms and to manage stress.Standard therapy includs life style modifications. The primary outcome measure was the score on a symptom-severity scale specific to IBS.