Active clinical trials for "Colitis"

The purpose of this study is to assess effectiveness of vedolizumab versus ustekinumab in patients with Crohn's disease and vedolizumab versus tofacitinib in patients with ulcerative colitis, after non-response to anti-tumor necrosis factor (TNF) medications, using data from two existing cohorts.

Increased evidence suggests that dopamine acts as an important regulator of immune function. A substantial amount of dopamine exists in the gastrointestinal tract, especially in colonic lumen. Decreased dopamine level has been reported in the colonic mucosa of ulcerative colitis patients. Therefore, the investigators suppose that colonic dopamine could involve in the ulcerative colitis and play an important role. This study aims to explore the role of dopamine in ulcerative colitis and underlying mechanism, which will provide a rationale for diagnosis and treatment of the ulcerative colitis.

The objective of this post-marketing observational study (PMOS) was to evaluate the effectiveness of adalimumab plus the AbbVie Care 2.0 patient support program in participants with rheumatoid arthritis (RA), ankylosing spondylitis (AS), psoriatic arthritis (PsA), psoriasis (Ps), Crohn's disease (CD) or ulcerative colitis (UC) in the routine clinical setting in Hungary.

The purpose of this research study is to improve the understanding of irritable bowel syndrome (IBS) and its underlying cause. The investigators will use magnetic resonance imaging (MRI) to observe differences in the brain between people diagnosed with IBS compared to healthy controls and people with ulcerative colitis, a disease group that has already been characterized. By doing this correlative and comparative study, the investigators hope to gain knowledge on IBS in order to keep the field moving in the right direction and becoming one step closer to discovering effective treatments.

To assess if infliximab drug levels in subjects with Ulcerative Colitis predict risk of colectomy rate. Additionally, the investigators will estimate an optimal day 4 infliximab level based on the study results.

The purpose of this study is to test blood and tissue samples of people with Ulcerative Colitis (UC) to see what effects vitamin D may have on the immune system. This research is being done because it could lead to the development of new treatment for people with inflammatory Bowel Disease (IBD).

The purpose of this non-interventional, multicenter, post-marketing observational study (PMOS) was to assess rheumatoid arthritis (RA), psoriatic arthritis (PsA), ankylosing spondylitis (AS), plaque psoriasis (PS), Crohn's disease (CD) and ulcerative colitis (UC) patients' adherence attitudes (beliefs) to maintenance therapy with adalimumab monotherapy or combination therapy with methotrexate (in participants with RA) and to investigate whether there were correlations between such beliefs and adherence to maintenance treatment.

Understanding of how best to treat inflammatory bowel disease (IBD) has evolved over the last ten years. Evidence now suggests that the most effective therapy early in the course of Crohn's disease (CD) and ulcerative colitis (UC) involves the use of immune suppressing medications such as the anti-Tumor Necrosis Factor (anti-TNF) agents infliximab, adalimumab, and certolizumab. However, many CD and UC patients still ultimately require surgery despite the use of these medications. Side effects of the anti-TNF agents include increased risk of infections due to their effect on the immune system. Little is known about how use of these medications near the time of surgery may affect patients' risks of infection or other post-operative complications. The only available studies on this topic have given conflicting results. These studies have been limited by the fact that they have been small in size and retrospective. Retrospective studies primarily involve chart review as the method of identifying potential risk factors for infections and other complications after they have already occurred. This method limits both the type and quality of information/data that can be collected. The conflicting results have led to variance in practice patterns with regards to management of anti-TNF agents, the timing of surgery, and even the types of surgery. By enrolling patients at the time of their surgery, collecting extensive information may be possible than previously studied on potential risk factors for both infectious and non-infectious complications following surgery. Risk factors to be studied will include individual patient characteristics, disease characteristics, surgical methods, novel characteristics of CT scans and MRIs and extensive medication exposures. The primary objective is to determine if exposure to anti-TNF agents prior to surgery increases the risk of infection post-operatively. And evaluate exposure to anti-TNF agents by both patient history of use and measurement of anti-TNF drug levels at the time of surgery. Monitoring of drug levels at the time of surgery has never been utilized in this way to evaluate the risk of anti-TNF agents in IBD. However, this has been done to assess the risk of other medications in different diseases. If anti-TNF agents are found to pose a risk for infectious or non-infectious outcomes in IBD patients undergoing surgery, change maybe needed in the way these medications are used around the time of surgery. Additionally, by collecting comprehensive information on other potential risk factors besides medication use patients at greatest risk for bad outcomes can be identified and take protective measures when possible. The aims of this study address the CCFA challenge to better define the risks of medical and surgical therapies to improve the quality of care of IBD patients undergoing surgery.

Inflammatory Bowel Diseases (IBD) are life-long, incurable illnesses that can have a profound effect on the patients quality of life. Disease education is a corner stone of IBD care to enable patients to take up an active role in their disease management. While patient education is enshrined in the IBD standards, actual patient knowledge is often poor.3 Knowledge is not associated with the level of the patient's educational achievement, but member of patient organisations such as Crohn's and Colitis UK (CCUK) have significantly better knowledge than non-members. This may highlight the positive effects of education offered by CCUK, but it is also conceivable that patients with a greater interest in their disease are more like to join organisations like CCUK. Different sources of patient information may therefore influence what level of disease related knowledge a patient achieves. Apart from high quality clinical information provided by professional organisation (British Society of Gastroenterology, European Crohn's and Colitis Organisation), the National Health Service and charities (CORE, CCUK), there is also a host of unregulated information available. The emerging dominance of the internet for information gathering has provided easy access for patients to a host of websites providing information on IBD. A number of these provide alternative (not evidence based) views, which could have a potentially negative impact on patient's knowledge. Furthermore patients often share their stories on internet forums and it is likely that those stories share are more likely to represent the extreme ends of disease rather than those experienced by the majority. This could potentially cause anxiety in patients with IBD. The quality of information found on the internet varies widely and up to 50% of websites have been judged as poor. The vast majority of patients with IBD have access to the internet and more than half use to search for health related information.7 We have previously also demonstrated that patients with anxiety have better disease related knowledge of IBD.

This is a prospective, safety surveillance registry in participants with moderate-to-severe active ulcerative colitis (UC).