Clinical Research Directory

Inclusion Criteria: * Aged 18-65 years ; both genders eligible. * Meets the criteria for Refractory NMOSD. * Anticipated survival of ≥ 12 weeks as judged by the researcher. * Agrees to use double barrier methods, condoms, oral or injectable contraceptives, or intrauterine devices during the study period and for one year after taking the study medication. * Provides written informed consent. Exclusion Criteria: * History of solid organ transplantation. * Malignant tumor within the last two years. * Positive for Hepatitis B surface antigen (HBsAg) or Hepatitis B core antibody (HBcAb), with peripheral blood Hepatitis B virus (HBV) DNA detected as positive; positive for Hepatitis C virus antibodies, with peripheral blood Hepatitis C virus RNA detected as positive; positive for Human Immunodeficiency Virus (HIV) antibodies; positive for Cytomegalovirus (CMV) DNA; positive for syphilis. * Primary immunodeficiency (congenital or acquired). * Severe cardiac disease. * History of psychiatric disorders or history of psychotropic drug abuse, with no history of withdrawal. * Allergic constitution or a history of severe allergies. * Pregnant or breastfeeding women.