Active clinical trials for "Crohn Disease"

Hospitalization for kidney stones in the Inflammatory Bowel Disease (IBD) population is common, particularly among Crohn's patients who had a small bowel resection. This patient population experiences a lifetime occurrence of kidney stone formation as high as 25% accompanied with a high rate of recurrence (the typical rate of stone formation is ~10% in the non IBD population). Giving oral calcium is used to bind oxalate in the intestine in an attempt to reduce the amount of oxalate that is absorbed into the body and to reduce urinary oxalate levels. However, there are no defined guidelines for the optimum dosing of calcium. This study's primary objective is to scientifically define an appropriate range of calcium supplementation that reduce the level of oxalate found in the urine of patients living with inflammatory bowel disease.

This study is a multi-site randomized controlled clinical trial evaluating the efficacy of a peer mentoring program for improving the self-management of youth with IBD. The primary outcomes are youth QOL and functioning in typical life activities. Secondary outcomes are disease outcomes, including disease severity and clinical outcomes (hospital admissions, clinic appointments, missed appointments, procedures). Mentor and parent QOL will also be assessed as secondary outcomes. Mechanisms that may contribute to the effects of the Mentoring Program will be investigated: Parent and child self-efficacy, illness uncertainty, coping, social support and child perceived stigma. Sex will be explored as a moderator. A total of 200 youth and their parents and 100 mentors will be enrolled. Eligibility criteria for youth include age 10-17 years, parent and child English fluency, and no documented neurodevelopmental disorder or history of hospitalization for a psychiatric or behavioral disorder. Mentors will be ≥16 years, ≥1 year post-diagnosis of IBD and managing their IBD well. They will be rigorously screened via online application, interview, checks of references, driving records, and social media, background check, and successful completion of a 3-hour training. Youth will be randomly assigned to the Mentoring Program or an "Educational Activity" comparison group, with baseline assessments occurring prior to randomization. Follow-up assessments will occur post-intervention and 6 months later. The Mentoring Program consists of year-long, 1:1 mentee-mentor relationships with group educational activities, online educational information, and a parent support component. Mentors and mentees are expected to have weekly contact (e.g., text, phone), with in-person contact 1 - 2 times per month. Group activities target self-management skills through experiential opportunities, modeling, and direct instruction. Educational topics include nutrition, stress, IBD and school, and disease management, and are taught by experts in each content area. They also provide opportunities to socialize with other mentors and mentees: lunch and games are provided before or after the educational event. The Educational Activity comparison group consists of separate educational group events on the same topics (with no social time), educational information posted online, and monthly encouragement to engage in activities in the community.

Perianal Crohn's disease (pCD) affects around one-third of patients with Crohn's disease (CD) during their disease course. It represents a distinct disease phenotype and causes significant morbidity, often requiring multiple surgical interventions. However, treatment of pCD is still challenging and unsatisfactory. Only approximately one-third of pCD patients responded to biologic treatment. Overall, medical therapy with anti-TNF could only achieve prolonged remission in 30-40% of pCD cases. At the same time, surgical treatment could only lead to a favourable outcome in around 50% of patients with a higher recurrence rate in patients with complex than in simple fistulae. Recently, combination of optimal medical therapy with surgical therapy (drainage of sepsis and insertion of seton), with radiological guidance, has been suggested as the standard management so as to improve the outcomes of complex pCD. Magnetic resonance imaging (MRI) is considered to be the gold standard imaging technique for perianal CD. It can visualise the anal sphincter and the pelvic floor muscles, as well as the fistula tracts and abscesses. Previous studies using MRI to monitor treatment response to anti-TNF revealed that radiological healing lagged behind clinical remission by a median of 12 months and that long-term maintenance therapy is probably required to prevent recurrence despite a clinically healed external opening. Therefore, we hypothesize that serial monitoring with MRI is important. Recently, there has been some advance in the surgical treatment of perianal Crohn's disease. FiLaCTM uses a radial-emitting disposable laser fibre for endofistular therapy. Recent systemic review and meta-analysis showed that the primary success rate was 73.3% (11/15) in patients with perianal Crohn's fistula. There has been breakthrough in the management of luminal Crohn's disease. The CALM study has showed that timely escalation of anti-TNF on the basis of clinical symptoms combined with biomarkers in patients with luminal Crohn's disease resulted in better clinical and endoscopic outcomes than symptom-driven decision alone. It is unsure whether this approach is also applicable to patients with perianal Crohn's disease.

Patients with inflammatory bowel disease (IBD) often have narrowed microbial diversity and altered composition and function of the gut microbiome. We anticipate the anti-inflammatory diet, when compared with the usual diet, to produce favorable changes in these multi-omics profiles. These findings will provide insight into the interactions between diet and host biology, while providing clues on the mechanisms of diet therapy's effect and CD pathogenesis.

Restorative proctocolectomy with ileal pouch-anal anastomosis (IPAA) is the surgical treatment of choice for patients with ulcerative colitis (UC) who require surgery. Inflammation of the ileal pouch (pouchitis) occurs in up to 60% of pouch patients. Although, pouchitis patients are former UC patients, the disease occurs in the small intestine, similarly to Crohn's disease (CD). Further, the disease can be clinically similar to CD, involving the proximal gastro-intestinal tract and causing strictures, fistula, or perianal disease. The Crohn's Disease Exclusion Diet (CDED) reduces exposure to all the components identified in rodent models as well as two components that are highly suspect but have not been investigated in models. The diet also provides dietary components that may favor species (especially SCFA producers) which appear to be deficient in CD. The investigator therefore aims to examine the microbial, mucosal and immunological changes of the pouch during one year post IPAA, and examine the impact of the CDED on disease activity and dysbiosis in a cohort of adults suffering from active pouchitis.

Crohn's disease (CD) is a chronic inflammatory disease of the gastrointestinal (GI) tract. Although inflammation is predominantly expressed in the GI tract, extra-intestinal manifestations (EIMs) are so frequent that the concept of systemic disease is now widely accepted. Moreover, similar to other chronic diseases, patients with CD can be affected by other unrelated diseases which are called comorbidities. Although no specific guidelines on comorbidity and EIMs in CD are available, data from other immune-mediated diseases support the use of nurse-led programs to improve the cost-effectiveness for the management of cardiovascular risk factors, increase rates of pneumococcal vaccination in high-risk patients, provide preventive measures against osteoporosis and increased fracture risk in older women. The investigators believe that such an initiative can be conducted for CD patients by developing a CD-specific nurse-led program. Moreover, it has been shown that CD patients highly appreciate the "communicator role" and "skilled companionship" performed by nurses to fulfill their needs for attention to the "complete picture". Therefore, the investigators hypothesize that a nurse-led program would increase the number of measures taken to treat or identify EIMs and/or comorbidities in CD patients and thus revolutionize their management.

The main aim of the study is to evaluate the lielihood of panenteric mucosal healing in Crohn's disease patients treated with vedolizumab The study will include patients with active Crohn's disease who are starting treatment with vedolizumab. The patients will undergo evaluation with panenteric capsule endoscopy, intestinal ultrasound and inflammatory biomarkers before treatment onset, at week 14 and week 52

Inflammatory bowel disease (IBD) is a relatively common disease that effects all age groups and carries significant morbidity and mortality. The initial treatment typically involves both short and long term medication, however when this is not enough to adequately control the disease, surgery is often required. The high morbidity and mortality rates are in part due to the increased rates of venous thromboembolism (VTE) such as deep vein thrombosis (DVT) or pulmonary embolism (PE) which have been shown to develop more frequently in IBD patients compared to the general population. Undergoing abdominal surgery has also been shown to independently increase rates of DVT and PE and since the majority of patients with IBD will undergo surgery at least once in their lifetime, the relative increased risk of developing a VTE is very high. The majority of DVT and PE events in the postoperative IBD population will occur after discharge from hospital and therefore carries significant morbidity and mortality risk in a unmonitored setting. Several studies have demonstrated the benefits and safety of twice daily dosing of oral extended VTE prophylaxis agents in orthopedic and cancer postoperative patients following discharge from hospital. There have been no randomized studies which have evaluated the use of extended postoperative VTE prophylaxis in IBD patients. The purpose of this randomized placebo controlled pilot trial will be to evaluate the efficacy and safety of postoperative VTE prophylaxis in IBD patients following abdominal surgery. If this pilot trial demonstrates efficacy in reducing postoperative DVT and PE rates, safety and feasibility, clinicians will be armed with the knowledge to pursue a larger multicenter randomized trial with the intent of reducing overall morbidity and mortality in this high risk population.

The MICROSPA project aims to compare gut microbiota, serum cytokines, and PBMC of patients suffering from Crohn's disease (CD) associated or not to spondylarthritis (SpA). 3 groups of patients will be analyzed: patients suffering from CD alone, patients suffering from SpA alone, patients suffering from CD and SpA. One group of healthy controls will be analysed as a comparator. Fecal microbiota will be determined by bacteriome, virome and fungome NGS sequencing

This pilot study aims to detect possible trends or signals suggesting efficacy of FMT on prevention of delay of POR, to determine the safety of FMT in post operative CD, and asses if a full randomised controlled trial is feasible in this setting. With microbiota analysis we aim to assess if changes in gut microbiota are related to disease course of CD after operation.