Long-term outcomes in inflammatory bowel disease patients on a specific medication

This is an observational study that looks back at and follows patients with inflammatory bowel disease (Crohn's disease or ulcerative colitis) who have been treated with Ustekinumab. Researchers will review your medical records and follow your care over time to understand how well this medication works for you and whether it helps control your symptoms long-term. The goal is to learn more about how this treatment performs in real-world patient care.

While this medication has been approved for treating inflammatory bowel disease, doctors want to understand how it performs when used in everyday clinical practice over months and years. This study will help fill in gaps about long-term effectiveness and safety in routine patient care.