The IBD-patients will be prospectively documented in the BIOibd-Registry. The diagnosis is made in accordance with current DGVS/ECCO UC/CD guidelines. There are the following inclusion and exclusion criteria:
Inclusion Criteria:
* IBD-patients (UC/CD) aged 18-80 years at enrollment
* Written informed consent is given Exclusion Criteria:Lack of adequate documentation possibilities
* Malignant disease in history
* Planned surgical intervention
There are three subpopulations:
1. IBD-patients (age at enrollment: 18-80 years) receiving a newly introduced Vedolizumab (VDZ) therapy (n=1.800). A former therapy with other biologics is allowed. More than 30% of these Vedolizumab patients will be biologics-naiv.
2. IBD-patients (age at enrollment: 18-80 years) receiving a newly introduced anti-TNF-alpha therapy other than VDZ (n=350) in biologics-naiv patients.
3. IBD patients (age at enrollment: 18-80 years) with an early disease (n=350), who were first diagnosed \< 2 years before the start of documentation in the Investigator initiated non-interventional study (NIS) but have not yet received and are not planned to receive biologics in the near future.
Patients with IBD on Vedolizumab/anti-TNF will be documented in a prospective online documentation form at the participating study sites. In parallel, these sites will also document consecutively early disease IBD patients who were diagnosed less than 2 years previously. These patients will be used as a control group.The data will be documented in an online documentation form. After initial documentation at enrollment and during induction (0, 2, 6 and 14 weeks), follow-up documentation using an abbreviated online follow-up form will be requested every 6 months during the longitudinal investigation. Any drug side effects are also captured online on a side effects form.