Active clinical trials for "Irritable Bowel Syndrome"

IBS is a highly prevalent bowel disorder, characterized by recurrent abdominal pain during bowel movements or a change in bowel habits. Typically, IBS patients experience constipation, diarrhoea or a mix of constipation and diarrhoea, as well as symptoms of abdominal bloating or distension. The chronic and bothersome nature of IBS symptoms negatively affects the quality of life of many patients. Because there are currently limited medical treatment options for IBS, it is important to study new treatments. IBS can (in part) be caused by an 'imbalance' of the bacteria residing in the intestinal tract. For instance, there may be a lower proportion of specific bacteria that are generally considered beneficial for a persons health. The consumption of non-digestible food ingredients, such as GOS, may stimulate the growth of these beneficial bacteria. GOS is a type of 'prebiotic', which is known to support health and wellbeing of consumers. By restoring the bacterial balance of the intestinal tract, the symptoms of IBS may be reduced after consumption of GOS. The health effects of the study product (a specific GOS) used in current study was previously investigated in a small group of patients with IBS. Use of the study product indicated a reduction in the patients' symptoms, improvement in the patients' quality of life, and changes in patients' gut bacteria. It is therefore hypothesized that GOS / a specific GOS may reduce the symptom severity of patients with IBS. This study further evaluates how GOS may improve symptoms of IBS.

Cognitive Behavioral Therapy (CBT) is the most well researched and most effective treatment for IBS targeting the brain-gut-microbiome (BGM) axis, and preliminary data show that this therapeutic effect is associated with a reduction of brainstem connectivity with other brain networks. The increased prevalence of IBS in women, the higher rate of comorbid non-GI pain conditions, as well as the higher prevalence in female IBS of increased sensitivity to a variety of internal and external stimuli (multisensory sensitivity) suggest the presence of important sex differences in some of these BGM mechanisms. Research performed by UCLA SCOR during previous funding has established an increased responsiveness of the CRF-Locus Coeruleus (LCC) system in female IBS subjects, suggesting that this central noradrenergic brainstem system plays an important role in IBS pathophysiology. In addition, the study team's earlier research has begun to identify clinical, functional and structural brain mechanisms that may underlie these sex effects. Based on the preliminary data, the overall goal of this project is to use CBT as a probe to study the relationship between specific disease-related alterations of the brain, the gut microbiome, and symptomatic outcome, and identify the role of sex differences in these relationships. Investigators will study male and female IBS patients before and after CBT using the advanced neuroimaging and microbiome technologies of the overall SCOR.

Irritable Bowel Syndrome (IBS) is one of the most common conditions diagnosed in gastroenterology practice. Acute infectious gastroenteritis represents the strongest known risk factor for IBS development; a condition known as post-infection IBS (PI-IBS). PI-IBS patients are more likely than sporadic IBS patients to exhibit a diarrhea-predominant phenotype. The investigators plan to prospectively recruit two groups of patients: patients with diarrhea-predominant post-infectious IBSand patients with diarrhea predominant classical IBS (non PI-IBS) who will be used as controls. Patients included in the study will receive for 28 days a capsule containing Tamarind seed polysaccharide containing xyloglucan, combined with a pea protein reticulated with grape seed extractand a prebiotic, the xilooligosaccharide (Gelsectan, Devintec Sagl) twice daily.

Consecutive patients with Irritable Bowel Syndrome with Constipation (IBS-C) will be recruited from the outpatient clinics of the University of Michigan Health System. Eligible patients will be asked to participate in a study that will test the efficacy the PEG 3350 + a diet low in fermentable oligo, di, monosaccharides, and polyols (FODMAP) vs. PEG 3350 plus sham diet. Blinding dietary advice trials is challenging and therefore the sham diet was based on the criteria set forth by Staudacher et al. which emphasizes that the diet must give the impression that is the true intervention diet with similar restrictions, modifications, and time intensity without impacting the intake of essential nutrients, fiber, and FODMAPs. An example of the sham diet's carbohydrates includes: apples, bananas, and pears, and wheat. Oranges, raspberries, strawberries and rice would not be allowed. Additionally, the physicians analyzing the data will be blinded as to which group the patients were randomized.

Vestibulodynia (VBD) is a complex chronic vulvar pain condition that impairs the psychological, physical, and sexual health of 1 in 6 reproductive aged women in the United States. Here, the investigators plan to conduct a randomized, double-blinded, placebo-controlled clinical trial to 1) compare the efficacy of peripheral (lidocaine/estradiol cream), centrally-targeted (nortriptyline), and combined treatments in alleviating pain and improving patient-reported outcomes and 2) determine cytokine and microRNA biomarkers that predict treatment response in women with distinct VBD subtypes. Positive findings from this study will readily translate to improved patient care, permitting the millions of women with VBD, their partners, and their clinicians to make more informed decisions about pain management.

Fecal microbiota transplantation (FMT) is a strategy that infuses a fecal suspension containing a healthy donor's microbiota into a patient's gut to restore his/her intestinal microbiome. FMT has a higher cure rate than standard antibiotic treatment for recurrent Clostridium difficile infections,and shows promising results in Inflammatory bowel disease（IBD）.However, few studies have evaluated whether FMT is effective to treat Irritable bowel syndrome(IBS).The investigators propose to determine the efficiency and safety of FMT in patients with Irritable bowel syndrome.

A Double-blind randomised placebo-controlled pilot study as well as a reversed translational part To investigate whether two faecal transplantations from either allogeneic (healthy) or autologous (own) donor, administered through a nasoduodenal tube, has beneficial effects on irritable bowel syndrome (IBS) symptoms such as abdominal pain frequency and severity. Secondary objective is to study microbiota changes in faeces samples.

The purpose of this study is to evaluate the efficacy as well as safety of rifaximin combined fecal microbiota transplantation(Gut microbiota reconstruction) in the treatment of IBS-D.

This study of the efficacy and safety of Plecanatide in children 6 to <18 Years of Age with Irritable Bowel Syndrome with Constipation (IBS-C)

Apart from its use to provide insight in IBS disease courses and in clinical research, ESM can provide patients with feedback about individual triggers of their symptoms, and thereby function as part of a personalized therapeutic strategy. This is also true for IBD-IBS. Treatment strategies in IBS and IBD-IBS are largely based on reassurance, identification and elimination of triggering factors, and in more severe cases pharmaco- and psychotherapy. The ESM approach has the potential to increase therapeutic efficacy in IBS and IBD-IBS and will assist patients in disease self-management. The Traqq application can provide more detailed information about the dietary pattern of IBS and IBD-IBS patients. Traqq in combination with ESM will give an overview of abdominal pain and associated symptoms and psychosocial factors are exposed to during the day. The insight provided using ESM and Traqq may improve patient understanding of their personal symptom dynamics and triggers, as well as the physician's insight into the symptom patters of the specific patients, which may aid treatment choice and eventually improve the outcome of any treatment provided in daily clinical care.