Active clinical trials for "Intestinal Diseases"

A multi-center observational study based at referral centers and community hospitals within the US. Patients' blood will be collected at enrollment for testing with PredictSURE IBD™, which will occur at a later date. Patients will be prospectively followed up for 12 months with clinicians treating according to local standard of care, with a step-up or accelerated step-up regimen. Clinicians and patients will be blinded to the biomarker results.

Build a collection of fecal microbiota in order to determine the characteristics of gut microbiota associated with colorectal cancer in Inflammatory bowel disease (IBD).

The human gut contain a wide range of microorganisms creating the gut microbiome. The microbiome has great impact on metabolic and immunologic processes and responses. Travelers who travel to tropical destinations where the intestinal infection risk is high are prone to microbiome changes. During the current study the travelers will give feces specimen before and after the travel and their microbiome will be analyzed.

The purpose of this study is to determine which early infliximab pharmacokinetic level is most associated with clinical remission at weeks 30 and 54 in pediatric IBD patients.

The purpose of this study is to evaluate the long-term clinical significance of small-intestinal mucosal injuries in chronic NSAIDs-users.

This study aims to investigate the role of non-genetic factors in the pathogenesis of inflammatory bowel disease.An exploratory study to investigate differences between the epigenome, microbiota and functional immunology in twins discordant for inflammatory bowel disease.

Goal is to prospectively determine if stool calprotectin and change in bowel wall thickness and hyperemia, as seen on small bowel ultrasound, at week 0, 14, and 54 can be used to predict response at week 54 to infliximab in pediatric patients with small bowel Crohn's Disease.

The principal research objective is to determine the impact of antibiotic use on the risk of developing long term bowel symptoms after infection with the germ Campylobacter.

Under normal conditions intestinal mucosa presents a baseline "physiological inflammation" caused by a controlled immune response that eliminates offending dietary and microbial antigens. This inflammation disappears once the cause is eradicated. In case of inappropriate immunological response, the inflammation becomes chronic and harmful, resulting in anatomical and functional abnormalities, namely inflammatory bowel disease (IBD). Although it is critical for the IBD patients to undergo early diagnosis and management before the development of severe complications, but as IBD has vague and non-pathognomonic clinical features, the clinician is usually mislead into late suspicion and detection of IBD. Diagnosis traditionally depended on a combination of pathologic evaluation together with the histological, clinical, radiological, endoscopic, surgical, laboratory (serological) features. Recently, serological markers were identified and became of special interest as they do not only detect the occurrence of IBD but also the potential of its development and may be used as prognostic tools. More recently, stool markers were detected and used for diagnosis. Up to now, the market is still lacking a definitive, simple and non-invasive diagnostic tool. Saliva can present an alternative form of body fluids that simplify diagnostic procedures. Our hypothesis is that IBD patients have special salivary biomarkers that may be identified through salivary analysis, where later on a simple non-invasive test can be applied in the form of an easy-to-use kit, being available at the clinician's clinic for the establishment of an immediate and early diagnosis of the destructive inflammatory bowel disease.

Background theme Crohn's disease (CD) and ulcerative colitis (UC) are chronic diseases that alternate flares of active inflammation with periods of clinical remission. The working capacity of patients may be affected both by disease activity and by the aggressive treatment or surgical intervention required for the management of the disease and its complications. Work disability and impairment are especially important in patients with inflammatory bowel disease (IBD) because the disease affects young individuals who are generally employed and fully active. Although there are several indexes in the literature that assess the degree of work disability due to IBD, all have a high degree of subjectivity, so none can be used to request disability pensions. Experience of the research group on the subject Our group has developed a line of research on work disability associated with IBD. Initially the investigators have studied the parameters that condition the granting of disability pensions of Spanish courts. Subsequently, a population study of the prevalence of work disability in Spain has been carried out. Finally, the investigators develop and validated a disability index for CD (published in its extensive and reduced form) and for UC (currently under review). Hypothesis The IBD generates a work disability that can be measured objectively. Establishing the parameters related to disability is essential to promote equity in administrative and judicial decisions related to the granting of disability pensions to patients with IBD. Objective Development and validation of an objective index to measure the degree of disability in IBD. Material and methods: Study 1: A self-reported and objective questionnaire of disability will be developed based on the data of the population survey already carried out by our group. Patients from a previous study (n 293) will be included. The relationship of different objective variables and disability outcomes will be analyzed with a univariate and a subsequent multivariate analysis. Alternative work disability scores will be developed. Study 2: for the validation of the questionnaire a new online interview will be performed, patients from patients' assocations will be asked to participate. Data Collection: patients will answer a online survey administered with the SurveyMonkey © platform. Participant will answer questions about demographics, disease activity, treatment and complications and data regarding disability. Patients will also complete the SCDWDQ (Short Crohn's Disease Work Disability Questionnaire), Work Productivity and Activity Index (WPAI), IBDQ-9, the EuroQol and IBD-DI (IBD disability index). Statistical analysis: psychometric properties of the index will be evaluated: Convergent validity: the Spearman correlation will be used to correlate the objective disability score with IBD-DI and SCDWDQ. Discriminant validity: it will be measured by the t-test among patients with different degrees of disability (inactive-active, hospitalization-no hospitalization, surgery-no surgery).