Mobile Application for IBD Patients With Biologics

"Patients will use a mobile application for ±6months (exact period depends on interval of biologic treatment) with the following functionalities:~* Personal interactive timeline to prepare for biologic treatment with reminders for blood tests, a questionnaire to exclude contra-indications for biologic treatment (e.g. current infection) and a message from the gastroenterology nurse when blood tests results and the questionnaire have been checked. Only in case of abnormal results or answers patients will be contacted by telephone by their gastroenterology nurse, which is currently standard care.~* Information about the patients' diagnosis and biologic treatment.~* General information on e.g. IBD treatment, vaccinations, frequently used medical terms, preparing for outpatient visits, what to do in case of disease symptoms.~Patients will fill in a questionnaire to measure study outcomes at baseline and at the end of the study period."