This study is an open label, single arm exploratory clinical trial of IC19 CAR-T cell therapy for refractory systemic lupus erythematosus. Patients who are still in an active state after systemic treatment using the standard treatment regimen specified in the treatment guidelines were selected to receive IC19 CAR-T cell single pulse infusion therapy.
Subjects diagnosed with systemic lupus erythematosus who meet the 2019 European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) classification criteria for SLE;
Prior to screening, treatment with glucocorticoids (sufficient or shock therapy) combined with immunosuppressants (cyclophosphamide, mycophenolate mofetil, antimalarial drugs, azathioprine, methotrexate, leflunomide, tacrolimus, cyclosporine, etc.) and at least one biological agent (rituximab, belimumab, tacrolizumab, etc.) must have been received for at least 2 months, and the dosage must be stable for more than 2 weeks. The disease should still be active or recur after disease remission.
Prednisone (or equivalent) ≥ 7.5 mg/day and ≤ 60 mg/day;
When used in combination with immunosuppressants and/or biologics, there is no minimum daily dose requirement for glucocorticoids.
Diseases of the central nervous system that have clinical significance in the past or during screening, such as seizures, epilepsy, epileptic seizures, cerebrovascular disease (ischemia/hemorrhage), cerebral edema, reversible posterior white matter encephalopathy, paralysis, aphasia, stroke, severe brain injury, dementia, Parkinson's disease, cerebellar disease, organic brain syndrome, encephalitis, CNS vasculitis, or psychiatric disorders;
Screening for acute severe lupus nephritis within the first 2 months, defined as significant deterioration of kidney disease (such as the presence of urine sediment and other laboratory abnormalities) that the researcher believes may require the use of contraindicated drugs or high-dose corticosteroids (prednisone ≥ 100 mg/d or equivalent corticosteroid treatment ≥ 14 days) for treatment in the first 2 months of the study.
If there is an uncontrolled lupus crisis within the first 2 months of screening, the researcher has assessed that it is not suitable to participate in this study;
A large amount of serous fluid accumulation (such as pleural effusion and peritoneal effusion) with compression symptoms that cannot be controlled after treatment;