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  • Title: Treatment of neuromyelitis optica with rituximab: retrospective analysis of 25 patients.
    Author: Jacob A, Weinshenker BG, Violich I, McLinskey N, Krupp L, Fox RJ, Wingerchuk DM, Boggild M, Constantinescu CS, Miller A, De Angelis T, Matiello M, Cree BA.
    Journal: Arch Neurol; 2008 Nov; 65(11):1443-8. PubMed ID: 18779415.
    Abstract:
    BACKGROUND: Neuromyelitis optica (NMO) is an uncommon, life-threatening inflammatory demyelinating disorder. Recently, much has become known about its immunopathogenesis. However, optimal treatments, with expected outcomes, have not been established. OBJECTIVE: To evaluate the use and efficacy of rituximab for treating NMO. DESIGN: Retrospective multicenter case series of NMO patients treated with rituximab. SETTING: Seven tertiary medical centers in the United States and England. PATIENTS: Twenty-five patients (including 2 children), 23 of whom experienced relapses despite use of other drugs before rituximab. Extended follow-up of 7 previously reported patients is included. INTERVENTIONS: Infusions of rituximab at median intervals of 8 months. MAIN OUTCOME MEASURES: Annualized relapse rate and disability (expressed as Expanded Disability Status Scale score). RESULTS: At a median follow-up of 19 months, the median annualized posttreatment relapse rate was lower than the pretreatment rate (0 [range 0-3.2] vs 1.7 [range, 0.5-5] relapses, P < .001). Disability improved or stabilized in 20 of 25 patients (80%, P = .02). Two patients died during the follow-up period, 1 owing to a brainstem relapse and 1 owing to suspected septicemia. Infections were reported in 20% of patients. CONCLUSIONS: In NMO, treatment with rituximab appears to reduce the frequency of attacks, with subsequent stabilization or improvement in disability.
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