Active clinical trials for "Pouchitis"

We aim to determine whether low FODMAP diet in patients with chronic pouchitis will improve symptoms and pouch inflammation.

To evaluate the efficacy and safety of ustekinumab in the treatment of chronic antibiotic refractory and relapsing pouchitis.

The aim of current study is to evaluate the effect of hyperbaric oxygen therapy for the treatment of chronic antibiotic-refractory pouchitis.

Microbiota and innate immunity in pouchitis: predisposing factors and modulation of the inflammation with probiotics. Around 20-25% of ulcerative colitis patients undergo restorative proctocolectomy with ileal pouch anal anastomosis. Pouchitis is an idiopathic inflammatory disease that may occur in ileal pouches. In our recent studies, we showed altered microbiota and innate immunity relationships in pouchitis. We plain to perform a double-blind, placebo-controlled trial probiotic therapy vs placebo starting at the time of ileostomy closure to evaluate the impact of microbiota that colonizes the pouch mucosa in the pathogenesis of pouchits, to determine how expression and activation status of the innate immunity system in different cell types and anatomical districts of pouch mucosa relate to microbiota population and follow-up the clinical outcome of anal pouches in light of microbiota-innate immune system interplay. Our study will include three phases: analysis of the intestinal microbiota with High Throughput Sequencing Unit and anaerobes cultures characterization of innate immunity with TLR, NLR, nicotinic receptors and LPMC analysis assessment of microbiota and innate immune system in the ileal pouch before ileostomy closure, 2 months after ileostomy closure and after 1 year follow up.

Crohn's disease (CD) and ulcerative colitis (UC) are chronic inflammatory bowel diseases (IBD) currently affecting over 5 million patients globally, mostly young adults. These conditions are often debilitating, disabling and may markedly affect patient's quality of life. Despite important advances in research, the pathogenesis of IBD remains obscure, the incidence-rising, the condition - incurable, and drugs have a modest effect. The common denominator may be environmental factors, specifically diet and the microbiome, which remain a fundamental unmet need in IBD care as high quality randomized trials and mechanistic research are limited. Up to a quarter of patients with UC may undergo complete large bowel resection due to disease complications. In order to preserve bowel continuity, this surgery includes a restorative part with creation of a reservoir ("pouch") from normal small bowel instead of the resected rectum. The majority of these patients develop small intestinal inflammation in the previously normal small bowel creating the pouch ("pouchitis"). Based on our results from previous studies, we hypothesized that personalized antibiotics and dietary interventions will modify microbial composition and result in significantly improved outcomes, specifically resolution of inflammation and prolonged remission rates in patients with a pouch. Aims: Compare the effect of two antibiotic treatments on clinical, inflammatory and microbiological outcomes of patients with pouch inflammation. Evaluate the effect of combined microbiome-targeted antibiotic and dietary intervention as treatment and prevention strategy in patients after pouch surgery. Evaluate the effect of a microbiome-targeted dietary intervention as prevention strategy in patients after pouch surgery. Identify predictors for response to specific antibiotic and dietary interventions.

Primary sclerosing cholangitis (PSC) occurs in approximately 10 % of patients with ulcerative colitis (UC), but the outcome of reconstructive surgery is not clear. The purpose of this study was to determine the functional outcome after surgery, frequency of pouchitis, complications and failure-rate in UC-PSC patients compared to patients with UC alone. Both ileal pouch-anal anastomosis (IPAA) and ileo-rectal anastomosis (IRA) were studied.

The inflammatory bowel diseases (IBDs), ulcerative colitis (UC) and Crohn's disease (CD), are characterized by lifelong relapsing-remitting gastrointestinal inflammation, with symptoms of abdominal pain, diarrhea, and rectal bleeding during active disease. Medical therapy reduces intestinal inflammation and ameliorates symptoms. Clinical remission is defined when symptoms are resolved. In these periods, patients are able to perform daily activities more freely and lead a normal lifestyle. Biochemical remission (normalization of CRP and fecal Calprotectin) and endoscopic remission (no visual signs of inflammation of the mucosa in endoscopy) are the goals of IBD treatment. Unfortunately, 30-40% of patients will relapse during 6 months from achieving remission. Risk factors for disease exacerbation are still unknown, and no guidelines exist as to the prevention of relapse and maintenance of remission in IBD patients. In addition to the above, sleep disturbances and disturbances in the circadian rhythm can be a potential cause of flare-up. Sleep disorders cause changes in immune function, which later affect the course of the disease in IBD. This back affects the sleep pattern, so that a cycle is created, which may perpetuate the inflammation. The interactions between sleep and inflammation are complex. An effective immune system affects sleep, and sleep disorders affect the functioning of the immune system. Furthermore, changes in the biological clock and sleep deprivation have been directly shown to worsen ulcerative colitis in laboratory animals. In people with sleep disorders, high levels of inflammation were found. However, it is difficult to dissect the cause and effect for these associations, given their complex interactions. Therefore we are planning to conduct a prospective study to assess variety of factors that might be associated with the activity of IBD.

Pouchitis is a common complication following proctocolectomy with ileal pouch anal anastomosis (IPAA) in patients with ulcerative colitis (UC). It affects the quality of life and can become a chronic problem. The aetiology of pouchitis is not completely understood. A crucial role of the intestinal microbiota has been suggested, but no causative agent has been identified so far. Furthermore, the defensin expression and the epithelial integrity are altered in inflammatory bowel diseases and may play an important role in the development of intestinal inflammation. Therefore, it has been hypothesized that the interaction between an altered microbiota composition, a defective epithelial integrity and changes in innate defense parameters such as defensins has a pivotal role in the development of pouchitis in UC patients.