A Study of C-CAR168 in the Treatment of Autoimmune Diseases Refractory to Standard Therapy

This is an investigator-initiated, single-center, open-label study of C-CAR168, an autologous bi-specific CAR-T therapy targeting CD20 and BCMA, for the treatment of adult patients with autoimmune diseases refractory to standard therapy

Inclusion Criteria: * 18 to 70 years old at the time of signing the Informed Consent Form (ICF). * Diagnosed as Multiple sclerosis (MS)/Neuromyelitis Optica Spectrum Disorders (NMOSD)/Myasthenia Gravis (MG)/Systemic Lupus Erythematosus (SLE)/ Systemic Sclerosis (SSc)/ Immune-Mediated Necrotizing Myopathy (IMNM) according to recognized diagnostic criteria for at least 6 months. * Prior treatment failure with standard therapy. * Adequate bone marrow, coagulation, cardiopulmonary, liver and renal function. Exclusion Criteria: * Hepatitis B Virus (HBV), Hepatitis C Virus (HCV), Human Immunodeficiency Virus (HIV), Treponema Pallidum (TP) positive, Cytomegalovirus (CMV) DNA positive, Epstein-Barr Virus (EBV) DNA positive. * Uncontrolled active infection. * Live vaccine injection within 4 weeks prior to signing the ICF. * Major organ transplantation history or bone marrow/hematopoietic stem cell transplantation history. * Severe cardiovascular diseases within the past 6 months prior to screening. * A history of ≥ Grade 2 bleeding within 4 weeks prior to screening, or requiring long-term anticoagulants treatment. * Inadequate washing time for previous treatment. * Previously treated with CAR-T cell products or genetically modified T cell therapies. * Pregnant or lactating women. * Severe central nervous system diseases or pathological changes. * Malignancy history within 5 years prior to signing the ICF. * Any contraindication to lumbar puncture for MS or NMOSD.