Multiple sclerosis (Houndmills, Basingstoke, England) · 2008
Rituximab levels in cerebrospinal fluid of patients with neurological autoimmune disorders.
Клиническое исследованиеСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Petereit H F, Rubbert-Roth A
Аннотация
BACKGROUND: Rituximab, a monoclonal antibody against the B-cell-specific surface protein CD20, is being evaluated for treatment of multiple sclerosis and neuromyelitis optica. Both diseases are restricted to the brain and cerebrospinal fluid (CSF). Whereas the ability of rituximab to deplete B cells in peripheral blood and tissue is well known, little information is available about the ability of rituximab to penetrate the barriers separating brain and CSF from the serum compartment.
OBJECTIVE: To measure rituximab levels in serum and CSF of rituximab-treated patients and correlate them with CSF and response markers.
METHODS: Fourteen paired serum/CSF samples of patients with autoimmune nervous system disorder were analyzed for up to 43 weeks after rituximab application.
RESULTS: Rituximab remains detectable within the CSF after i.v. application for up to 24 weeks. Furthermore, levels of rituximab in CSF correlate significantly with the integrity of the blood CSF barrier.
OBJECTIVE: To measure rituximab levels in serum and CSF of rituximab-treated patients and correlate them with CSF and response markers.
METHODS: Fourteen paired serum/CSF samples of patients with autoimmune nervous system disorder were analyzed for up to 43 weeks after rituximab application.
RESULTS: Rituximab remains detectable within the CSF after i.v. application for up to 24 weeks. Furthermore, levels of rituximab in CSF correlate significantly with the integrity of the blood CSF barrier.