This clinical trial is studying systemic lupus erythematosus (SLE), a disease in which the immune system attacks the body’s own tissues and can cause swelling, pain, rash, tiredness, and damage to organs. The study will test BI 3000202, an oral film-coated tablet taken by mouth, and compare different dose levels with placebo to see whether the treatment may help people with moderate to severe SLE. The purpose of the study is to evaluate how well and how safely BI 3000202 works in this disease.
In the study, people are assigned by chance to receive one of the dose regimens of BI 3000202 or placebo. The study is double-blind, which means neither the participants nor the study team knows which treatment is given. Treatment is continued for a period of time, and the study follows how the disease changes over several months, including whether symptoms improve and whether steroid medicine can be lowered. The study also looks at whether the disease reaches a lower level of activity, meaning it is calmer and causing fewer problems.



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