- Paediatric patients (children and adolescents between 6 and 17 years old) treated with Inflectra™, regardless of treatment phase from the time when Inflectra™ is prescribed in accordance with the indications listed in the SPC Crohn's Disease or ulcerative colitis Patients (or their legal representatives) who have received information (verbally and in writing) about the study and agreed to take part in it.