inflammatory bowel disease Ulcerative colitis
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - UC patients with an exacerbation under 5-ASA and/or thiopurines. An exacerbation is defined as clinical symptoms of diarrhoea, rectal blood loss, abdominal pain or weight loss who need sigmoidscopy to confirm endoscopic exacerbation. - UC patients with moderate to severe disease activity (
Exclusion criteria
Exclusion criteria: - UC patients under IFX treatment or after colectomy. - UC patients under treatment with steroids. - If the gastro-enterologist prefers to start Infliximab instead of Vedolizumab. - Patients diagnosed with another immune suppressive disease (e.g. HIV). - Patients who underwent splenectomy in the past. - Patients diagnosed with any other autoimmune diseases (e.g. Diabetes Mellitus type I, rheumatoid arthritis, celiac disease, psoriasis, systemic lupus erythematosus). - Patients diagnosed with cancer including hematologic malignancies (e.g. (non-)Hodgkin lymphoma , leukemia), solid tumors and carcinoma in situ, within 5 years before screening with the following caveats: o Local basal or squamous cell carcinoma of the skin that has been excised and is considered cured is not exclusionary. o Chronic myelogenous leukemia, hairy cell leukemia, melanoma, renal cell carcinoma, or Kaposi sarcoma are exclusionary irrespective of the duration of time before screening. o Cervical smear indicating the presence of adenocarcinoma I situ (AIS), high-grade squamous intraepithelial lesions (HSIL), or cervical intraepithelial neoplasia (CIN) of grade>1, is exclusionary, irrespective of the duration of time before screening.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The description of the different mucosal T-cells, serological markers and histological features at first presentation and at week 16 in UC patients. | — |
Secondary
| Measure | Time frame |
|---|---|
| Investigate if there are clinical and immunological differences between patients with a better endoscopic response on Vedolizumab at week 16. | — |
Countries
Netherlands