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Clinical Trial Summary

The purpose of this study is to study the loss of vedolizumab in stool in patients with active ulcerative colitis (UC).

Patients with moderate-to-severe UC who are commencing induction therapy with vedolizumab will be enrolled into a prospective study and stool will be collected for faecal vedolizumab measurement at days 1, 4 and 7; and again at weeks 2, 6 and 14. They will also be evaluated at three time-points (weeks 2, 6 and 14) for clinical and biochemical UC disease activity as well as serum vedolizumab concentrations and anti-vedolizumab antibodies.


Clinical Trial Description

Primary objective

- To determine whether vedolizumab is present in significant quantities in the stool of patients receiving induction therapy with vedolizumab for active UC.

Secondary objective (s)

- To evaluate whether the presence and quantity of vedolizumab in stool can be used to predict primary non-response to vedolizumab.

- To explore whether a correlation exists between stool vedolizumab concentrations, serum vedolizumab concentrations and UC disease activity and extent.

- To determine whether there is a correlation between stool and serum vedolizumab levels and trafficking of Th1/Th17 effector memory CD4+ T-cells (the key pathogenic subset in IBD) to the colon in UC. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04006080
Study type Interventional
Source Guy's and St Thomas' NHS Foundation Trust
Contact
Status Recruiting
Phase Phase 4
Start date July 1, 2019
Completion date March 2020

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