Juvenile idiopathic arthritis complicated with macrophage activation syndrome
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Obtain an informed consent form signed by the patient's legal guardian and an informed consent form signed by the patient for children >= 8 years of age; 2. Age before randomization 2-16 years; 3. Diagnosis of sJIA, which meets the 2001 ILAR classification criteria or the 2018 PRINTO classification criteria for sJIA: Children with unexplained fever (excluding infections, tumors, autoimmune or monogenic autoimmune diseases), recurrent fever lasting for at least 2 weeks, accompanied by the following 2 main criteria or 1 main criterion+2 secondary criteria, including arthritis and reversible (unstable) erythematous rash; Secondary criteria included generalized lymphadenopathy and/or hepatomegaly and/or splenomegaly, serositis, duration of arthralgia > 2 weeks (without arthritis), and increased peripheral blood leukocytes (>= 15000/mm3). At the same time, the following conditions need to be excluded: patients with psoriasis and their first-degree relatives have a history of psoriasis, male arthritis patients older than 6 years old and HLA-B27 positive, ankylosing spondylitis or arthritis related to attachment point inflammation, or first-degree relatives have one of the above diseases and rheumatoid factor IgM positive with an interval of at least three months; 4. Meet the SJIA-MAS classification standard in 2005 or SJIA-MAS classification standard in 2016: children with persistent high fever, meet the ferritin > 684 ng/ml + any two items (platelet count 48 U/L, triglyceride > 156 mg/dl or fibrinogen <= 360 mg/ml), and exclude infection, tumor, etc.
Exclusion criteria
Exclusion criteria: 1. Patients with severe allergic reactions or transfusion reactions to biological agents; 2. There was an incurable active or recurrent infection before randomization; 3. Tuberculosis or latent tuberculosis infection; Clinical symptoms, radiological tests, and/or laboratory tests indicate tuberculosis infection; 4. Immunotherapy may cause immunosuppression of patients' underlying diseases (including metabolic, renal, liver, gastrointestinal, or infection), especially those with a history of multiple sclerosis or other demyelinating diseases; 5. Have a history of malignant tumors in any organ system that have been treated or have not been treated within the past 5 years; Or a malignant tumor that occurred 5 years before screening but is still active; 6. Significant QT interval prolongation; 7. Any person who is positive for HIV antibody, hepatitis B surface antigen, hepatitis C antibody or syphilis antibody during screening; 8. Patients who have used biological agents such as tocilizumab, infliximab, or IL-1 antagonists within 4 weeks.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| ACR Ped 30 response at 4 weeks of treatment; | — |
Secondary
| Measure | Time frame |
|---|---|
| White blood cells/neutrophils;platelet;C-reactive protein;Serum ferritin;Aspartate transaminase/alanine transaminase;fibrinogen;triglyceride;cytokine; | — |
Countries
China
Contacts
Children's Hospital, Zhejiang University School of Medicine