Long-term study of ustekinumab for Crohn's and colitis

This study follows adults with Crohn’s disease or ulcerative colitis to compare the long-term safety of ustekinumab against other biologic medicines. It may help show how safe these treatments are over time, using medical records.

This Phase 1 study uses a special camera to track how ustekinumab (a common biologic medicine) spreads in inflamed tissue. It aims to help researchers understand where the drug goes in Crohn’s disease and psoriasis, especially when standard treatments haven’t worked.

This trial tests whether a combination of two drugs (upadacitinib and ustekinumab) works better than a higher dose of ustekinumab alone for people with active Crohn's disease that hasn't responded well to previous treatments.

This study compares two biologic medicines, ustekinumab and upadacitinib, to see which works better for people with Crohn's disease that hasn't improved with other treatments. The goal is to reduce inflammation and help you feel better.

This study tests a new treatment for people with Crohn's disease who have lost response to ustekinumab (Stelara). It aims to see if a different dosing or additional treatment can help regain control of symptoms.

This study looks at people with active Crohn's disease or ulcerative colitis starting a new type of medication (anti-TNF, ustekinumab, upadacitinib, or vedolizumab), as well as people without IBD having a routine colonoscopy. It aims to collect information to better understand how these treatments work.