A Study To Evaluate Pharmacokinetics, Efficacy, Safety, Tolerability, And Pharmacodynamics Of Satralizumab In Pediatric Patients With Aquaporin-4 Antibody Positive Neuromyelitis Optica Spectrum Disorder (NMOSD)
Trial Parameters
Brief Summary
This study will primarily evaluate the pharmacokinetics of satralizumab in pediatric patients aged 2-11 years with anti-aquaporin-4 (AQP4) antibody seropositive neuromyelitis optica spectrum disorder (NMOSD). Efficacy, safety, tolerability, and pharmacodynamics will be evaluated in a descriptive manner, given the small number of patients who will be enrolled in this study.
Eligibility Criteria
Inclusion Criteria: * Age at screening 2-11 years, inclusive * Body weight at screening \>=10 kg * For female patients of childbearing potential (postmenarchal): agreement to either remain completely abstinent (refrain from heterosexual intercourse) or to use a reliable means of contraception * Diagnosed as having NMOSD with AQP4 antibody seropositive status as defined by the Wingerchuk 2015 criteria Clinical evidence of at least one documented attack (including first attack) in the last year prior to screening * Neurological stability for \>=30 days prior to both screening and baseline * Expanded Disability Status Scale (EDSS) 0 to 6.5 * For patients receiving a baseline immunosuppressant treatment and planning to continue on these therapies, treatment must be at stable dose for 4 weeks prior to baseline Exclusion Criteria: * Pregnancy or lactation * Evidence of other demyelinating disease mimicking NMOSD * Active or presence of recurrent bacterial, viral, fungal, mycobacterial infect