This clinical trial is focused on studying a condition known as Systemic Juvenile Idiopathic Arthritis (sJIA), which is a type of arthritis that affects children. The study aims to evaluate the safety and effectiveness of a medication called Baricitinib in children aged 1 to less than 18 years who have this condition. Baricitinib is a medication that comes in different forms, including film-coated tablets and oral suspension, and is taken by mouth. Another medication involved in the study is Tocilizumab, which is given as a solution for injection under the skin. The study also includes a placebo, which is a substance with no active medication, to compare the effects of the treatments.
The purpose of the study is to assess how well Baricitinib works in treating children with sJIA. Participants in the study will receive either Baricitinib, Tocilizumab, or a placebo. The study will monitor the participants over a period to see how their condition responds to the treatment. The main goal is to see if the participants achieve a certain level of improvement in their symptoms by week 12 of the study.
Throughout the study, participants will be closely observed to ensure their safety and to gather information on how the medication affects their condition. The study is designed to provide valuable insights into the treatment of sJIA in children, potentially leading to better management of this condition in the future.



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