The objectives of this phase Ib study are to evaluate the efficacy, safety, pharmacokinetics, pharmacodynamics and immunogenic profiles of B001 in subjects with aquaporin-4 antibody (AQP4-IgG) positive NMOSD.
NMOSD as defined by either of the following 2015 criteria with anti-AQP4 antibody (Ab) seropositive status at screening
Clinical evidence of at least 1 documented relapse in last 12 months prior to screening
Expanded Disability Status Scale (EDSS) score from 0 to 7.5 inclusive at screening
Age 18 to 70 years, inclusive at the time of informed consent
Any previous treatment with anti-CD20, eculizumab, anti-BLyS monoclonal antibody (e.g., belimumab), any other treatment for prevention of multiple sclerosis (MS) relapse (e.g., interferon, natalizumab, glatiramer acetate, fingolimod, teriflunomide or dimethyl fumarate) within 6 months prior to baseline.
Received immunosuppression such as azathioprine, mycophenolate mofetil, methotrexate, cyclophosphamide, tacrolimus, mitoxantrone, cyclosporine A, etc, and rug therapy, biological agents such as satralizumab, tocilizumab, eculizumab, etc, 3 months prior to the first administration.
Evidence of serious uncontrolled concomitant diseases that may preclude participant participation, as described; Other nervous system disease, cardiovascular disease, hematologic/hematopoiesis disease, respiratory disease, muscular disease, endocrine disease, renal/urologic disease, digestive system disease, congenital or acquired severe immunodeficiency.
Known active infection within 3 months prior to baseline