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Summary Vision Study
Crohn's Disease (CD) and Ulcerative Colitis (UC) are chronic idiopathic inflammatory bowel diseases (IBD). Vedolizumab is a humanized monoclonal antibody against α4β7 integrin, capable of blocking the migration of several immune cells across endothelium expressing MAdCAM-1. Vedolizumab is expensive and primary non-response is high in both CD and UC. Currently there are no predictors of response to vedolizumab and the actual mechanism of action has not yet been elucidated. To clarify the mechanism of action and gain better understanding of the high primary non-response rates, the University Medical Center Groningen (UMCG) developed a tracer fluorescently labeling vedolizumab. This study aims to gain insight into vedolizumab distribution and concentrations in the gut. The current study aims to identify the vedolizumab target cells in the inflamed gut mucosa using near-infrared fluorescence molecular endoscopy (NIR-FME), spectroscopy and confocal laser endomicroscopy (CLE). By gaining insight into local vedolizumab concentrations, drug distribution and by discovering target cells, we expect to gain insight into the mechanism of action, gather data with which to optimize vedolizumab dosing, and to learn to predict therapy response in the individual patient.
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Vedolizumab-800CW, Fluorescence endoscopy and spectroscopy
Not yet recruiting
University Medical Center Groningen
Published on BioPortfolio: 2019-10-08T08:47:39-0400
The purpose of this study is to assess the effect of vedolizumab subcutaneous (vedolizumab SC) as maintenance treatment in participants with moderately to severely active Crohn's disease (...
The main aim of the study is to evaluate the lielihood of panenteric mucosal healing in Crohn's disease patients treated with vedolizumab The study will include patients with active Crohn'...
Vedolizumab (VDZ) is a monoclonal antibody which has shown its efficacy in Crohn's disease by inducing and maintaining clinical response/remission. The French marketing authorization was o...
The purpose of this study is to evaluate fistula healing at Week 30 in 2 different dose regimens of vedolizumab IV 300 mg in participants with fistulizing Crohn's disease (CD).
The purpose of this survey is to evaluate the long-term safety and effectiveness of vedolizumab for intravenous (IV) infusion 300 milligrams (mg) in Crohn's disease (CD) patients in the ro...
Vedolizumab is a gut-selective monoclonal antibody for the treatment of moderately to severely active Crohn's disease (CD). We performed a prospective study of endoscopic, radiologic, and histologic h...
We evaluated the ability of vedolizumab to induce endoscopic and histologic remission in patients with Crohn's disease (CD).
Small bowel capsule endoscopy (SBCE) is used to visualize mucosal inflammatory changes in the small intestine of patients with Crohn's disease (CD). The Lewis score (LS) and Capsule Endoscopy Crohn's ...
Vedolizumab is a gut-selective antibody to α β integrin approved to treat moderate-to-severe Crohn's disease and ulcerative colitis in adults. Inflammatory bowel disease (IBD) and immunosuppressant ...
Mucosal barrier dysfunction plays a crucial role in intestinal inflammation in Crohn's disease (CD). Intestinal epithelial cell (IEC) death resulting from innate immune activation, termed pyroptosis, ...
A type of FLUORESCENCE SPECTROSCOPY using two FLUORESCENT DYES with overlapping emission and absorption spectra, which is used to indicate proximity of labeled molecules. This technique is useful for studying interactions of molecules and PROTEIN FOLDING.
Procedures of applying ENDOSCOPES for disease diagnosis and treatment. Endoscopy involves passing an optical instrument along either natural body pathways such as the digestive tract, or through keyhole incisions to examine the interior parts of the body. With advances in imaging, endoscope, and miniaturization of endosurgical equipment, surgery can be performed during endoscopy.
A chronic transmural inflammation that may involve any part of the DIGESTIVE TRACT from MOUTH to ANUS, mostly found in the ILEUM, the CECUM, and the COLON. In Crohn disease, the inflammation, extending through the intestinal wall from the MUCOSA to the serosa, is characteristically asymmetric and segmental. Epithelioid GRANULOMAS may be seen in some patients.
A condition characterized by persistent or recurrent labial enlargement, ORAL ULCER, and other orofacial manifestations in the absence of identifiable CROHN DISEASE; or SARCOIDOSIS. There is no consensus on whether orofacial granulomatosis is a distinct clinical disorder or an initial presentation of Crohn disease.
Spectroscopy technique which measures changes in organic compounds by tracking the spectral energy of absorption of HYDROGEN atoms.
Crohn's Disease (CD)
Crohn’s disease (CD) is a long-term condition that causes inflammation of the lining of the digestive system. Inflammation can affect any part of the digestive system, from the mouth to the back passage, but most commonly occurs in the last s...