Ulcerative colitis clinical trials — recruiting now

This observational study aims to identify genes that may affect how patients with inflammatory bowel disease respond to anti-TNF treatment and why some patients lose response to treatment over time. The study will examine whether genetic markers can help predict which patients are more likely to respond to anti-TNF therapy. Participants who have not previously received anti-TNF treatment and are about to start advanced therapy will provide a blood sample to test for the genetic markers. Participants will also undergo regular assessments of current treatment, disease activity, and inflammatory markers during follow-up.

An increased risk of cardiovascular (CV) diseases has been observed in patients with inflammatory bowel diseases (IBD). The impact of IBD drugs, such as anti-TNF, anti-integrins or anti-JAK, on the risk of CV events in IBD is remains unknown. Aortic pulse wave velocity (aPWV), a measure of aortic stiffness, and carotid intima media thickness (CIMT) are both predictors of cardiovascular events and are increased in patients with IBD. The investigators aimed to prospectively compare the CV risk, CIMT, arterial stiffness and biomarkers of endothelial dysfunction at baseline and after 3 and 12 months of anti-TNF, vedolizumab and tofacitinib.

The purpose of this study is to estimate and compare the incidence of overall malignancy, serious infection, and opportunistic infections between new users of ustekinumab and new users of other biologic therapies among adult participants with Crohn's disease (CD) or ulcerative colitis (UC).

Inflammatory bowel diseases (IBD) include Crohn's disease (CD) and ulcerative colitis (UC). They cause abdominal pain and chronic diarrhea and/or rectal bleeding, which can lead to weight loss and malnutrition. IBD affects people of all ages but usually appears before the age of 30, most often between the ages of 14 and 24. Childhood IBD is generally considered to be more progressive than adult IBD. Although there is no cure for IBD, many medications can help reduce inflammation and relieve IBD symptoms. Anti-TNF drugs (infliximab and adalimumab) are used early in high-risk patients or when standard treatments have failed. Cutaneous side effects are common in pediatrics (\>10%), primarily psoriasiform eruptions (41%), often exudative, affecting skin folds and scalp, recurrent skin infections (20%), and eczematous eruptions (10%). Only 5% of patients need to discontinue treatment due to these side effects. In such cases, the recommended treatment is ustekinumab (European guidelines). While this treatment has been described as effective in patients who have failed anti-TNFα therapy, little data is available on the gastrointestinal and dermatological outcomes of patients on anti-TNFα therapy who switch to ustekinumab for dermatological reasons.

Infliximab (IFX) is a Food and Drug administration (FDA)-appoved monoclonal antibody medication targeting tumor necrosis factor (TNF) widely used in inflammatory bowel disease (IBD) to treat intestinal inflammation and improve patient's symptoms. Intravenous (iv) IFX is effective to treat hospitalized IBD patients with moderate-to-severe flares who fail iv corticosteroids (CS). However, about one-third of IBD patients do not respond to this medications and a half will loss the response after an initial response. Researchers have shown that most of these phenomena occur due to low IFX concentrations sometimes accompanied by the development of anti-drug antiboides (ADA) againts IFX. Blood concentrations of IFX are widely variable among IBD patients despite receiving the same weight-based dose. Several patient factors including laboratory parameters and severity of intestinal inflammation influence the way an individual's body proccesses and eliminate this type of medications. Dashboard software systems can take into account patient characteristics and IFX concentrations to modelate and facilitate dosing of IFX. By using pharmacokinetics (PK) models specifically developed to facilitate IFX dosing, these softwares can provide and recommend multiple dosing regimes to help the clinicians to select the appropriate dose to achieve target and optimal IFX concentrations. The goal of this clinical trial is to learn if early measuring of IFX blood concentrations and dashboard-guided IFX dose adjustment in Chilean IBD patients starting IFX, increases the proportion of patients with optimal IFX levels and improves patient outcomes. Researchers will measure IFX concentrations before the second (week 2) and third dose (week 6) in a prospectively collected individual patient cohort and this information along with clinical data will be analyzed with a dashboard software system and multiple dosing regime options will be provide to the attending clinicians to facilitate the selection of the next IFX weight-based dose and interval of infusions. This group will be compared with IBD patients with standard of dosing where attending clinicians make the dosing decisions based on clinical parameters. The main goal is to analyze if IBD patients in the dashboard-guided dosing arm achieve a higher proportion of optimal IFX concentrations at week 14 of treatment, develop ADA less frequently and improve clinical outcomes compared with standard dosing group. Participants will be asked to: * Provide clinical data about their disease and other conditions * Provide blood samples at enrollment and before each IFX infusion (IFN) during one year * Maintain regular clinical assessments every 3 months for one year

This is a multicenter, randomized, double-blind, placebo-controlled study to evaluate the safety, tolerability, pharmacokinetics and clinical efficacy of ISM5411 in adult patients with active ulcerative colitis.

The cause of inflammatory bowel disease (IBD) is currently unknown, although partly attributed to interactions among genetic risk polymorphisms, environmental factors, gut microbiome, and host immunity. Diet, particularly those with plant-based products, have been shown in prior research to improve gut microbial composition, which has been linked to different IBD-related outcomes. This study is interested in evaluating the impact of prebiotics on gut microbiome composition and gut health in patients with IBD. Dietary composition will be assessed at baseline and over the course of 16 weeks. Participants will be randomized to either consume an 8-week course of prebiotic supplementation beginning at week 0 or week 8. Stool samples will be collected at weeks 0 and 8. The stool will be analyzed for cross-sectional and longitudinal fecal microbial changes associated with different prebiotic and diet consumption patterns in the context of heterogeneous disease characteristics.

The goal of this clinical trial is to learn about the treatment with subcutaneous infliximab in patients with inflammatory bowel disease (IBD) that were previously treated with an optimized dose of intravenous infliximab. The main question it aims to answer is: \- Is switching to a weekly dose of subcutaneous infliximab (120 mg) associated with a better outcome compared to the standard fortnightly administration of 120 mg subcutaneous infliximab in patients who received an optimized intravenous dosing schedule? Participants will switch from intravenous infliximab to subcutaneous infliximab and will be randomized to the intervention arm (Subcutaneous infliximab weekly) or the interventional comparison arm (subcutaneous infliximab bi-weekly). Participants will follow daily clinical practice in the monitoring for clinical and biological remission. The participants that are willing to switch to subcutaneous infliximab will be compared to a group of participants not willing to switch. These participants will continue to be treated with their optimized intravenous dose of infliximab.

This study will evaluate whether a 12-week dietary intervention can improve gut health, inflammation, and quality of life in adults with ulcerative colitis in remission. Participants will be randomly assigned to one of three groups: a Mediterranean diet, a Mediterranean diet combined with time-restricted feeding (eating within an 8-hour window each day), or standard dietary advice. The Mediterranean diet emphasizes fruits, vegetables, whole grains, legumes, nuts, olive oil, and fish, while limiting processed foods and red meat. The main outcome will be changes in short-chain fatty acids in stool samples, which are markers of gut health. Additional outcomes include changes in inflammation markers, gastrointestinal symptoms, and quality of life. The results of this study may help identify effective dietary strategies to support patients with ulcerative colitis.

The main purpose of this study is to evaluate the safety and effectiveness of LY4268989 when compared to placebo in adult participants with moderately to severely active ulcerative colitis (UC). The study drug will be administered orally. The study will last up to approximately 108 weeks, excluding screening.

The goal of this study is to better understand treatment strategies for people with ulcerative colitis (UC). Researchers will compare patients with UC in histologic remission (no evidence of inflammation or active disease on endoscopy and biopsies) who continue to take medical therapy to patients with UC who de-escalate (decrease or discontinue) medical therapy. Both treatment strategies are considered within regular medical practice. Researchers want to find out whether remission can be maintained after de-escalation of therapy. Participants will be: * either be randomly assigned to continue medical therapy or de-escalate medical therapy -OR- be assigned per the participant's preference * clinically managed according to regular medical care * asked to provide blood, stool (poop), and tissue samples for study purposes

Probiotics are one of the adjunctive treatments that have been extensively explored for Ulcerative colitis (UC) disease management. Probiotics, a group of beneficial bacteria, can bring various health benefits when adequately supplied to the body, especially for gut wellness. In particular, for UC patients, gut dysbiosis is one of the contributing factors in their pathogenesis. Thus, the supplementation of probiotics in combination with standard treatment can potentially help in relieving symptoms as well as promoting mucosal healing for long-term remission.

Inflammatory Bowel Disease (IBD), encompassing Ulcerative Colitis (UC) and Crohn's Disease (CD), significantly impairs patients' quality of life. Current monitoring of disease activity primarily relies on endoscopy combined with histological examination, which is associated with high costs, invasiveness, poor patient tolerance, and risks of complications. Additionally, disease activity indices and laboratory-based IBD staging metrics demonstrate limited utility and accuracy in clinical practice. This study aims to investigate the correlation between polyamine levels and their key enzymes in the polyamine metabolism pathway with IBD activity, thereby establishing a predictive model for IBD progression through polyamine and metabolite measurements; to estimate the efficacy of biologics via polyamine detection, providing a scientific basis for therapeutic selection; and to screen gut microbiota associated with polyamine metabolic alterations, offering evidence-based guidance for probiotic selection in IBD patients.

This clinical trial aims to learn if the probiotic Prolife 10 Forte could improve the Gut Microbiota composition of Ulcerative colitis patients during the remission phase. The main questions it seeks to answer are: * Does Prolife 10 Forte improve the microbiota composition in patients with Ulcerative colitis? * Is it possible to highlight the variation in microbial pathways? * What clinical parameters vary and are associated with changes in the gut microbiota? Researchers will compare Prolife 10 Forte to a placebo (a look-alike substance containing no drug) to see if the probiotics improve microbiota. Participants will: * Take 1 vial/day of Prolife 10 Forte /Placebo for 60 days. * Visit the clinic two times for checkups, Questionaire and tests

This comparative observational cohort clinical study aims to investigate the necessity of premedication for allergy prevention prior to infliximab injection, and is designed to evaluate whether non-routine administration of dexamethasone before intravenous infusion of infliximab yields greater benefits than routine prophylactic medication in patients with moderate-to-severe inflammatory bowel disease (IBD). This study is designed to optimize the prophylactic strategy prior to Infliximab treatment and advocate for risk stratification-based individualized prophylaxis regimens to avoid hormonal abuse. Additionally, it will construct a risk score using biomarkers to accurately identify high-risk populations in need of prophylaxis and establish a corresponding predictive model. The study is also intended to reduce the use of unnecessary medications, shorten infusion duration and alleviate the medical burden. It is expected to provide targeted clinical support during the early stage of the disease or the course of treatment, improve the efficacy and precision of individualized treatment for patients, and reduce the physical, psychological and economic burdens caused by ineffective treatment.

The goal of this study is to evaluate safety, tolerability, pharmacokinetics (PK)), pharmacodynamics (PD) and immunogenicity of single and multiple ascending dose of TL-003 in healthy adult participants.

Ulcerative colitis (UC) is a chronic, relapsing, and incurable inflammatory disease of the large intestine. The hallmark clinical symptoms include bloody diarrhea associated with rectal urgency and tenesmus.. This study will assess how effective upadacitinib is in treating UC within a Chinese population. Upadacitinib is an approved drug for treating UC. Approximately 80 adult participants, who have been prescribed upadacitinib for UC by their physician in accordance with local label, will be enrolled in China. Upadacitinib will be administered in accordance with the terms of the local marketing authorization, and treatment of participants will be determined solely by the investigator. Participants in the study will be followed for up to 1 year. There will be no additional burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic and only data which are routinely collected during a regular visit will be utilized for this study.

Ulcerative colitis (UC) is a persistent, idiopathic form of inflammatory bowel disease (IBD) marked by uninterrupted inflammation of the colon's mucosal lining, usually starting at the rectum and progressing proximally in a continuous manner. It manifests clinically with recurrent episodes of abdominal pain, bloody diarrhea, urgency, tenesmus, and weight loss. The precise cause of UC is still unknown; however, it is thought to arise from a multifactorial interaction involving genetic susceptibility, immune system dysregulation, disturbances in gut microbiota composition, and various environmental factors.

The diet is assumed to contribute to many of our present non-communicable diseases. Vegetarian products are instead considered to be health promoting, However, it is not verified that the modern vegetarian and vegan products are healthier than the ones they are meant to replace. Products based on vegetables are nowadays often produced with advanced techniques and can therefore differ substantially from the original vegetables. The epithelium in the gut is protected by a mucus layer that efficiently prevents bacteria to encounter the epithelium and even to translocate into the gut and the blood stream. In several inflammatory conditions such as e.g., inflammatory bowel disease (IBD) the barrier integrity is disrupted, and translocation will occur. Fibers are important for the gut microbiota enabling the production of short chain fatty acids (SCFA) that is necessary as nutrition for the epithelial cells, Fibers also promote the development of mucus. The aim of the present study is to evaluate components in the diet that is claimed to be health promoting even though they sometimes can be a hazard to your health. Both fibers and antinutrients can be found in these dietary regimens. The health effects of these products will be studied by analysis of the gut microbiota and the barrier integrity as markers of the health status. Gut microbiota will be analyzed with next generation sequencing and q-PCR (polymerase chain reaction). Diversity and the occurrence of different species will be determined. The barrier integrity will be estimated by analysis of bacterial DNA in blood and presence of live bacteria. The study consists of two different parts: 1a. 60 health volunteers are divided into two groups. One group consumes ordinary dairy based yogurt and the other a yogurt based on vegan products for four weeks to enable a change in the gut microbiota. At start and after four weeks fecal samples and questionnaires about the general health and gastrointestinal symptoms will be retrieved. It should be noted that the compounds offered can be bought in the ordinary shops. 1. b. The same design as above but with IBD patients instead. Their disease activity will be monitored by scoring sheets and regular blood tests as a part of their regular check-up. 2. a. The same design as in 1a but with comparison between a regular meat-based diet and a diet with vegetarian meat substitutes instead. 2b. The same design as I 2a but with IBD patients. Healthy volunteers will be invited wit advertisements. The IBD patients will be recruited at the out-patient clinic at the Dept of Gastroenterology at Skåne university hospital, Sweden. Before inclusion their disease activity will be monitored. The study is a prospective non-randomized intervention study including both men and women. Each individual will serve as their own control. The meals based on meat substitutes will be composed in cooperation with a dietitian. The estimated amount of yogurt is 200-250 gram/day, and the amount of meat is 150-200 gram/day.

This phase will commence following dose escalation in the 24mg bid group during Phase I. Employing a 1:1:1 randomized, double-blind, placebo-controlled study design, it will evaluate the efficacy, safety, and Pharmacokinetics/Pharmacodynamics (PK/PD) characteristics of TQH3906 capsules in subjects with moderate-to-severe active ulcerative colitis. The study will include a maximum 4-week screening period, a 12-week treatment period, and a 4-week post-treatment follow-up period, enrolling a total of 105 subjects. Among these, subjects who failed conventional therapy and those who failed biologic therapy each constitute 35% of the cohort. week treatment period, and a 4-week post-treatment follow-up period. A total of 105 subjects will be enrolled, with 50% comprising subjects who failed conventional therapy and 50% comprising subjects who failed biologic therapy. Dose Group Design: Group A: Placebo Group B: 32mg dose group Group C: 24mg bid dose group The specific dose will be determined based on the 48mg dose group's medication experience from Phase I and adjusted as necessary.