Active clinical trials for "Crohn Disease"

The goal of this study is to learn about a low sulfur diet in patients with Crohn's disease. Study participants will be randomized to receive a low sulfur diet or usual diet for 8 weeks. Participants will work with study nutritionists and receive dietary educational materials. Participants will attend 2 in-person visits as well as 6 phone visits during the study. In addition, subjects will undergo testing, including a test to measure rectal sensation, a test to look for small intestinal bacterial overgrowth, and a test to measure leaky gut.

The PLANET Study aims to determine the impact of microplastics on intestinal inflammation and gut microbiome in order to understand the role of this pollutant on the risk of developing inflammatory bowel disease (IBD) as well as other diseases. With this information, the researchers hope to characterize better the role of environmental pollutants on IBD and develop novel strategies towards prevention.

The main aim of this study is to learn about the effect of treatment with vedolizumab IV (vedolizumab) together with adalimumab or vedolizumab together with ustekinumab in adults with moderate to severe Crohn's Disease, and the effect of treatment with vedolizumab alone, after the dual targeted treatment. The study is conducted in two parts. In Part A, participants will receive the dual targeted treatment (vedolizumab together with either adalimumab or ustekinumab). In part B, participants will receive vedolizumab only. Part B will include participants who responded to the treatment in Part A. Each participant will be followed up for at least 26 weeks after the last dose of treatment.

Inflammatory Bowel Diseases (IBDs), including ulcerative colitis and Crohn's disease (CD), constitute a group of debilitating chronic diseases that profoundly impact patient quality of life and incurs large costs in terms of treatment and lost productivity. Incidence of IBD is rising worldwide, and there is a pressing clinical need for development of new therapies. Discovery and development of effective therapies to treat IBDs depend first on a better understanding of the underlying mechanisms, including how proinflammatory cells proliferate unchecked. It has been established that the cytokine interleukin (IL)-23 plays a pivotal role in IBD pathophysiology and antibodies targeting IL-23 are currently in late stage development for the treatment of both CD and ulcerative colitis (UC). IL-23 is part of the IL-12 family of cytokines (which includes IL-12, IL-27 and IL-35). The p40 subunit is shared among IL-23 and IL-12; the p19 subunit is unique to IL-23. Thus far, the efficacy of selective anti-IL-23 blockade (via anti-p19 antibodies) appears 5-10% better with respect to clinical and endoscopic outcomes than targeting both IL-23 and IL-12 using anti-p40 antibodies. Understanding the effects of IL-23 (and IL-12) in IBDs requires identification of the most relevant immune cells that respond to these cytokines. One likely cell type controlled by the IL-23 pathway are innate lymphoid cells (ILCs). ILC3s (a subset of ILCs) are dominant in healthy intestinal tissue and capable of producing IL-22 which maintain intestinal epithelial homeostasis. Disturbances in the amounts of IL-22 caused by changes in the stimulatory cytokine IL-23 in tissues, may therefore cause inflammatory responses. IL-23 may facilitate the IL-12-induced shift of ILC3s to ILC1s which are contributing to the disease-causing chronic inflammation. The DIVE 23 project is designed to understand the role of IL-23 in human IBD, in particular CD. It is hypothesized that IL-23R+ cells in the gut, are drivers of chronic inflammation in CD and determine the impact of IL-23 inhibition. To this end the investigators plan to extensively characterize the IL-23-responsive cell populations in inflamed and non-inflamed intestinal tissues of CD patients with postoperative recurrence in order to identify IL-23-responsive immune cell populations that are associated with disease activity. Patients will be treated in routine medical practice with biological agents and will undergo a second ileocolonoscopy 12-16 weeks later to investigate the impact of the different interventions on the mucosal immunology driving CD.

This is a double-blind, randomized, placebo-controlled study, consisting of a single ascending dose (SAD) part with integrated food effect (FE) arm, and a multiple ascending dose (MAD) part to assess the safety, tolerability, and PK of ascending single and multiple oral doses of LMT503. The study will start with the SAD part.

Inflammatory bowel diseases (IBD) is treated with biologics targeting the pro-inflammatory molecule tumour necrosis factor-α (TNF), i.e. TNF inhibitors. Up to one third of the patients do, however, not respond to biologics and little is known of the biological mechanism as a prognostic factor (possibly enabling personalised medicine). The aim of this project is to identify biomarkers that support individualized forecasting of optimized treatment outcome on these costly drugs. This prospective cohort study will enroll IBD patients assigned for biologic treatment. At baseline (Pre-treatment), biopsies and blood is taken from each patient. Follow-up will be conducted at week 14-16 after treatment initiation (according to the current Danish standards). Evaluation of a successful treatment outcome response will - for each disease - be based on most frequently used primary endpoints; the major outcome of the analyses will be to detect differences in treatment outcome between patients with the cell expression. The overarching goal of this project is to improve the lives of patients suffering from IBD, by providing evidence to potential biomarkers that would be likely to improve the clinical outcome. The study is approved by the local Ethics Committee (S-20160124) and the local Data Agency (2008-58-035). The study findings will be disseminated in peer-reviewed journals, via patient associations, and presented at national and international conferences.

Dexamethasone will be used as an adjunct to local anesthetics (bupivacaine) to prolong the duration of laparoscopically-placed transversus-abdominis plane blocks in elective colorectal resection.

The purpose of this study is to measure the changes in small bowel uptake of radioligand [11C]AZ14132516 after IV administration of a single dose of AZD7798 in healthy participants and participants with Crohn's disease. Study details include: The study duration will be variable (adaptive design). There will be 5 in-person study visits: 1 screening visit, 1 visit for the baseline PET examination, 1 residential (24h) visit for AZD7798 administration and 2 visits for repeated PET examinations. There will be a final follow-up virtual visit (telephone call).

This research study is testing whether changes in sleep timing and morning light treatment may have an impact on symptoms related to inflammatory bowel disease.

Crohn's disease exclusion diet (CDED) is a whole-food diet coupled with partial enteral nutrition. The main objective of this trial is to assess whether CDED is superior to corticosteroids, in terms of endoscopic response, in patients active CD. The primary endpoint is endoscopic response at week 16, without corticosteroids or further therapeutic intervention, assessed by a centralized, anonymous and blinded, double lecture panel of panenteric PillCam Crohn's Capsule. This is a multicentre, open-label, comparative, randomized, 2:1, controlled, single-blind, superiority trial. Patients included are aged 16 to 70 years, have mild to moderate, luminal, active CD, and have active endoscopic lesions. Eighty patients will be randomized between CDED (n=56) and corticosteroids (n=24) in centres in France, Israel and the Netherlands.