Non-Invasive Biomarker Monitoring in UC on Biologics

Brief summary (registry, in English)

Ulcerative colitis (UC) is a long-term inflammatory bowel condition. Many patients are treated with intravenous biologic drugs such as infliximab or vedolizumab. Measuring the level of these drugs in the blood helps doctors adjust treatment, but results can take one to two weeks to come back. Volatile organic compounds (VOCs) are gases released from stool and urine that reflect activity in the gut, including gut bacteria and inflammation. They can be measured quickly and without needles. This study will find out whether VOCs in stool and urine can tell apart patients with adequate drug levels from those with low drug levels. It will also look at whether VOCs can identify patients whose UC is in remission versus those whose disease is flaring, and how VOCs relate to blood inflammation markers, gut bacteria and DNA methylation (chemical tags on genes). Adults with UC already receiving maintenance intravenous infliximab or vedolizumab at University Hospitals Coventry and Warwickshire will be invited to take part. Participants will provide stool, urine and blood samples at four of their routine infusion appointments. No extra visits are needed and treatment is not changed by the study.

What you commit to

• Study type: Observational
• Planned participants: 99
• From 18 Nov 2026 to the primary completion date, 8 Sept 2027
• 1 site in 1 country
• Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Who the study is looking for

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

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