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This study is evaluating the levels of calprotectin, a protein found in stool, in healthy adults. Calprotectin is a marker of inflammation in the intestines and can help doctors tell the difference between inflammatory bowel diseases (IBD), like Crohn's disease or ulcerative colitis, and non-inflammatory conditions like irritable bowel syndrome (IBS). In this study, healthy volunteers aged 22 and older will collect a stool sample at home using a simple kit and mail it to the study site. The samples will be tested using a new laboratory method called the ALPCO Calprotectin CLIA assay. The goal is to confirm what level of calprotectin is considered "normal" in people without intestinal disease. Participation involves just one stool sample, and there are no medical procedures. Volunteers will be compensated for their time. The study will help improve how doctors interpret calprotectin test results in clinical settings.
The goal of this observational research study is to determine how diet contributes to various gastrointestinal related conditions. The main question investigators aim to answer is: Are host genetics, diet, and microbiome all important determinants of GI disorders, and how their relative contribution varies among individuals and populations.
Vedolizumab (VDZ) is a humanized immunoglobulin G1 monoclonal antibody acting against α4β7 integrin which modulates lymphocyte trafficking in the gut. Results from the adult GEMINI-1 and GEMINI-2 trials demonstrated clinical efficacy in induction and maintenance of remission in both ulcerative colitis (UC) and Crohn's disease (CD), respectively. Recent real life cohorts in adults support the effectiveness of VDZ in inducing and maintaining remission, both in CD and UC. In pediatrics, there are very limited data on the use of VDZ besides two retrospective case series. Data on immunogenicity and therapeutic drug monitoring (TDM) of VDZ is conflicting in adults and practically non-existent in children. The investigators aim to prospectively explore the real life short and longer term outcomes of VDZ in pediatric IBD (including growth) and to develop a prediction model for treatment success based on VDZ trough levels and other clinical and laboratory variables.
The purpose of this study is to evaluate the efficacy of RO7837195 compared with placebo in participants with moderately to severely active ulcerative colitis for whom prior treatment with conventional and/or advanced therapies has failed.
The purpose of this study is to test the effect of an anti-inflammatory diet that incorporates native foods of the Hispanics/Latino (H/L) diet on disease remission in H/L patients with Ulcerative Colitis (UC) and to identify biomarkers of response to dietary therapy.
Crohn's Disease and Ulcerative Colitis are two types of inflammatory bowel disease (IBD), which is a serious, long-term condition in the gut (intestine) that can cause pain and swelling (inflammation) in the bowel. TAK-279 is a medicine which helps to block inflammation. This study is an extension of the parent studies, TAK-279-CD-2001 (NCT06233461) and TAK-279-UC-2001 (NCT06254950). This means that participants who responded to treatment with TAK-279 in either of the parent studies may be able to continue to benefit from the treatment in this study. The main aim of this study is to find out how safe TAK-279 is for long term use and to check if it reduces bowel inflammation and symptoms when used for a longer period of time in adults with moderately to severely active UC or CD. The participants will be treated with TAK-279 for up to 2 years (108 weeks). During the study, participants will visit their study clinic 11 times.
The purpose of this study is to evaluate the efficacy, safety, and pharmacokinetics (PK) of vixarelimab compared with placebo in participants with moderate to severe UC who have demonstrated inadequate response to, loss of response to, or intolerance to prior conventional or advanced therapy.
The main aim of this study is to learn about the effect of treatment with vedolizumab IV (vedolizumab) together with tofacitinib in adults with moderate and severe ulcerative colitis (UC). Another aim is to learn about treatment with Vedolizumab alone after the double treatment. All participants will receive vedolizumab together with tofacitinib for 8 weeks and will be checked for response. Participants who show a response to the treatment after 8 weeks will be treated with vedolizumab alone for an additional 44 weeks. Each participant will be followed up for at least 26 weeks after the last dose of vedolizumab.
Participants who were in clinical remission on 200 milligram (mg) filgotinib once daily for at least 2 consecutive quarterly visits in the ongoing SELECTION-LTE study (GS-US-418-3899, NCT02914535), were planned to be rolled over and randomized in this study. The primary objective of this study was to evaluate the efficacy of filgotinib in participants in stable clinical remission on 200 mg filgotinib once daily for whom the dose was decreased to 100 mg once daily compared to participants remaining on 200 mg once daily.
The purpose of this study is to compare PL8177 (a melanocortin receptor agonist) to placebo (in a 3:1 ratio-meaning that for every 3 people that get the active drug, one will receive placebo). The study treatment will be for 8 weeks. The study will measure safety and the body's ability to handle PL8177 and look at the improvement and healing of the intestine after 8 weeks of treatment. The study will include adult males and nonpregnant, nonlactating females with acute Ulcerative Colitis (UC).