Clinical trials

The purpose of this study is to evaluate how well guselkumab works in participants with Crohn's disease (CD; a long-term condition causing severe inflammation of the intestinal tract) who no longer respond to treatment with ustekinumab.

The purpose of this study is to assess the measurable changes in health, function, or quality of life (clinical outcomes) after receiving guselkumab in real-world clinical practice amongst Chinese participants with ulcerative colitis (UC; a long-term disease of the large intestine in which the lining of the colon \[part of large intestine\] becomes inflamed and develops tiny open ulcers), who have not received biologic therapy (a medicine made from living organisms or their components) previously.