ROLL'YN-OMA is a real-world study in patients receiving standard biologic therapies who have been in control and/or remission of their disease for at least 3 months and whose physician has independently decided, within the framework of a shared medical decision, to switch them to OMLYCLO®. The primary objective of this study is to evaluate the maintenance of this control and/or clinical remission 12 months after initiation of the biosimilar, and subsequently, patient satisfaction at 6 and 12 months.