Active clinical trials for "Colitis"

Several studies using different methodological approach have revealed incomplete, old and conflicting data on the course of hepatobiliary manifestations after surgery. authors conducted a prospective observational study to evaluate the role of LRP on the course of hepatobiliary manifestations for a better knowledge of these manifestations that is necessary to improve their management.also, to evaluate the role of surgery on prevention of liver damage from progression of the disease.

To study the long-term clinical outcome of patients with ulcerative colitis treated with first trial of biological therapy.

This is a prospective, single country, multi-center study in participants with ulcerative colitis (UC) treated with adalimumab. Up to 147 participants are enrolled at approximately 20 sites. The baseline assessment is performed prior to the first dose of adalimumab (Visit 1). Study visits are conducted at weeks 8, 16, 24, 32, 40, 48 and 56 after baseline in accordance with clinical practice. All participants will have one Follow-up for safety approximately 70 days after the last dose of adalimumab.

The purpose of this study is to describe clinical course of newly diagnosed moderate to severe ulcerative colitis (chronic inflammatory disease of the colon) in tertiary referral hospitals in Korea for 5-year follow-up under usual care.

Colitis from reactivation of established cytomegalovirus (CMV) colonization can complicate the clinical course in patients with an acute flare of ulcerative colitis (UC). Accurate and timely detection of active CMV infection or disease with appropriate anti-viral therapy may reduce complications associated with acute UC flare. Limited information is available on the presence of colonic CMV infection in patients with quiescent ulcerative colitis. Prospective studies on factors associated with reactivation of CMV infection during active UC flare and its impact on disease progression are lacking. The hypothesis of this study are as follows: 1) CMV infection is prevalent in patients with ulcerative colitis irrespective of disease severity; 2) The degree of immunosuppression directly impacts CMV infection status in patients with ulcerative colitis

Objective: This study aims elucidate the pathophysiological link between the environment in the colon (mainly the microbiota), the local immune system and activation of the enteric nervous system in patients with post-infectious IBS (PI-IBS) and microscopic colitis (MC) with special emphasis on microbial-mucosa interactions and evaluation of the effect on the immune activation/response as well as how afferent gut-brain signalling leads to abdominal discomfort. Method: The project is based on data from three cohorts of patients, one with PI-IBS and one with MC as well as a gender- and age-matched cohort of healthy individuals. Measurement of perceived sensitivity in the gut will be evaluated by pain-response under mechanical stress using a barostat. The HIT (Human intestinal Tissue)-Chip array will be used to characterize the diversity, stability and functionality of the intestinal microbiota on mucosa level, giving a clue to the interactions with the host and insight to changes leading to the development of the two diseases. Immunohistochemistry and flowcytometry will be used to analyse the location, frequency and phenotype characteristics of lymphoid- and mast cells. Functional analysis of mucosal lymphocytes activated in vitro by products from the intestinal microbiota will be examined by cytokine production using the LuminexTM system. The Ussing chamber technique will allow investigation of the impact of the microbiota and its metabolites on intestinal barrier functions. In this method the sample has access to stressors under standard conditions.

Vedolizumab is a new medication being used for the treatment of Crohn's disease and Ulcerative colitis. It works by blocking specific white blood cells (alpha 4-beta7 lymphocytes) from migrating to areas of inflammation in the gastrointestinal tract. Previous studies have shown that patients who have previous exposure to another type of medication for Crohn's disease and Ulcerative colitis (anti-TNF medications) do not respond to vedolizumab as well as those who have never been exposed. This study will investigate biologic markers in the blood and tissue the help identify possible reasons for this difference.

Purpose: Inflammatory bowel disease patients undergoing treatment with varying biologic agents will be evaluated for incidences of paradoxical immune reactions, the risk factors associated with those paradoxical immune reactions, and whether the paradoxical immune reactions and their associated risk factors differ based on formulation of biologic agent. Participants: All adults (≥18 year) with confirmed IBD on a biologic agent or with plans to initiate treatment in 1 month Procedures (methods): Subjects undergoing treatment with a biologic agent will be followed indefinitely for paradoxical immune reactions. Data will be collected at baseline as well as serum and plasma for banking. Subjects will be followed at 6 month intervals either via email, telephone interviews or at the time of clinic follow-up visits. In the event of a de-novo paradoxical reaction, specific information will be collected from sites in an event capture form, with data abstracted from routine clinical care for the paradoxical reaction. Subjects will continue to be followed every 3 months after the event via email, telephone contact to determine whether resolution and/or recurrence occurred, and to determine any changes in medical therapy. Serum and plasma will be re-collected at the time of first event for comparison to baseline samples and to samples from controls (those on biologics without study documented paradoxical immune reactions). At resolution of the event, patient will return to 6 month follow up schedule. Subjects can discontinue and/or fail a particular biologic treatment; therefore they will also be followed for paradoxical immune reactions, on any new biologic treatment they undergo while in the study.

To evaluate the real-life effect after 1 year of adalimumab treatment on psychological distress/depression symptoms in moderate-to-severe Ulcerative Colitis (UC) patients.

Background and aims: Acute severe ulcerative colitis (ASC) is a potentially life-threatening event. Poor pediatric data are available about the success rates of Infliximab (IFX) as a second line therapy. This study was performed in consecutively observed pediatric patients with ASC, treated according to the 2011 European Crohn's colitis Organization (ECCO)- European Society for Pediatric Gastroenterology, Hepatology and nutrition (ESPGHAN) guidelines on pediatric ASC¹ and aim to assess the long-term efficacy of IFX and clinical predictors of poor outcome. Methods: Children hospitalized for an episode of ASC, defined as a Pediatric Ulcerative Colitis Activity Index (PUCAI) of at least 65 points, were enrolled. Clinical assessment through PUCAI and laboratory data (Erythrocyte Sedimentation Rate, C-Reactive Protein, hemoglobin, albumin, hematocrit, ferritin) was recorded at admission and at day 3 and 5. All patients were treated according to the above mentioned guidelines for ASC and received intravenous (iv) corticosteroids (CS) as first-line therapy. IFX was administered as second-line therapy in CS-refractory patients. In a 2-year follow up the overall colectomy rate and the efficacy of IFX in avoiding colectomy were evaluated.