Autoimmune Disease
Conditions
Keywords
Universal BCMA CART, AQP4 Antibody Positive, RefractoryNeuromyelitis Optica Spectrum Disease
Brief summary
This is an open label, Multi-center,dose-escalation study in up to 18 participants with refractory NMOSD. This study aims to evaluate the safety and efficacy of universal CAR-T Cells targeting BCMA in the Treatment of refractory NMOSD.
Detailed description
This is a multi-center, single-arm, open-label clinical study, and the sample size is set to 12-18 subjects. Based on the 3 + 3 dose escalation design principle, subjects will be divided into 3 groups from low dose to high dose in sequence (Group A; Group B; Group C).
Interventions
1.0-4.0×10\^6 CAR-T cells/kg
Sponsors
Study design
Intervention model description
Total target count of CD3+CAR+ viable cells of 1E6/kg 、2E6/kg and 4E6/kg
Eligibility
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| DLT | Within28 Days After BRL-302 Infusion | The number and severity of dose-limiting toxicity (DLT) events |
| AEs | Up to 12 Months After BRL-302 Infusion | The total number, incidence, and severity of AEs |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Annualized relapse rate (ARR) | 1,3,6,12 month after BRL-302 infusion | Number of NMOSD relapses in subjects after cell infusion divided by observation time (years) |