This clinical trial is focused on studying the effects of a medication called ustekinumab in children with a condition known as ulcerative colitis. Ulcerative colitis is a disease that causes inflammation and sores in the lining of the large intestine, which can lead to symptoms like abdominal pain and diarrhea. The study aims to understand how well ustekinumab works in helping children achieve remission, which means reducing or eliminating the symptoms of the disease.
Participants in the study will receive ustekinumab in two different forms. Initially, it will be given as an intravenous infusion, which means it is delivered directly into the bloodstream through a vein. This is followed by regular doses given as a subcutaneous injection, which is an injection under the skin. The study will also include a comparison with a placebo, which is a substance with no active medication, to help understand the true effects of ustekinumab.
The study will take place over a period of time, during which participants will receive the medication and be monitored for any changes in their condition. The goal is to evaluate the safety and effectiveness of ustekinumab in managing ulcerative colitis in children, as well as to study how the body processes the medication. This research is important for developing better treatments for children with this challenging condition.



Belgium
Germany
Hungary
Poland