Study to Assess Treatment Patterns and Outcomes With Upadacitinib in Adult Participants With Inflammatory Bowel Disease in Belgium

Crohn's disease (CD) is an incurable chronic inflammatory disorder of the gastrointestinal tract. Ulcerative colitis (UC) is an idiopathic, chronic, inflammatory disease affecting the colon. This study will assess the (long-term) effectiveness and safety of upadacitinib in real-world clinical practice in adult participants with moderate to severe ulcerative colitis (UC) and crohn's disease (CD). Upadacitinib is an approved drug for treating ulcerative colitis (UC) and Crohn's disease (CD). Approximately 280 participants who are prescribed Upadacitinib by their physician in accordance with local label will be enrolled in 8 sites across Belgium. Participants will receive upadacitinib as prescribed by their physician according to their routine clinical practice and local label. Participants will be followed for up to 3 years. There is expected to be no additional burden for participants in this trial. Participants will attend regular visits during the study at a hospital or clinic according to their routine clinical practice