Inebilizumab in Acute Neuromyelitis Optica Spectrum Disorders

Treatment tested

• Inebilizumab

  B-lymphocyte antigen CD19 binding agent

• oral immunosuppressant

Other measures (12)

Inclusion Criteria: * 1. Age ≥ 18 years with anti-AQP4-IgG seropositive NMOSD as defined by 2015 NMOSD diagnostic criteria by IPND (International Panel for NMO Diagnosis); 2. In the acute phase of NMOSD (definition of acute phase: new neurological symptoms or aggravation of existing symptoms within 30 days before screening, lasting at least 24 hours without with fever); 3. Patients who plan to receive or are receiving intravenous methylprednisolone therapy; 4. Expanded disability status scale (EDSS) score ≤ 8 and ≥ 2.5 during the screening period; 5. Able and willing to give written informed consent; 6. Women of childbearing potential who agree to use adequate contraception during the study. Exclusion Criteria: * 1. Lactating and pregnant females; 2. Participate in other interventional studies within 30 days before screening or within 5 half-lives of the investigational agent before enrollment; 3. Combined with severe mental disorders and other conditions and unable to cooperate with follow-up; 4. History of malignancies; 5. Received plasma exchange, immunoadsorption or intravenous immunoglobulin therapy within 1 month before screening; 6. Patients with negative hepatitis B surface antibody (HBsAg) and positive hepatitis B core antibody (HBcAb), or HBsAg-positive virus carriers, or patients with active tuberculosis or positive tuberculosis screening without appropriate treatment history; 7. Other situations that researchers think are not suitable to participate in this study.

This study is aimed to observe the effectiveness and safety of inebilizumab in the acute phase of neuromyelitis optica spectrum disorders.