ArticleNeurology and therapy2026
Real-World Effectiveness and Safety of Ofatumumab: Analysis of B Cell Depletion, Comorbidities and Ethnicity in a Spanish Cohort.
Article in Neurology and therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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5 authors.
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Abstract
introductionOfatumumab, an anti-CD20 monoclonal antibody, is a high-efficacy disease-modifying therapy for relapsing multiple sclerosis (RMS). Although pivotal trials demonstrated substantial benefits, real-world data are required to confirm treatment persistence, effectiveness, safety, and biological markers of response in routine clinical settings. This study evaluated the real-world outcomes of ofatumumab in patients treated at a specialised multiple sclerosis (MS) centre in southeastern Spain, including exploratory analyses of B cell kinetics, comorbidity burden using the Charlson Comorbidity Index (CCI), and ethnicity.
methodsA retrospective observational study was conducted in adults with MS initiating ofatumumab between December 2022 and December 2025, with ≥ 6 months of continuous therapy. Demographic, clinical, radiological, laboratory, and pharmacological data were extracted from electronic medical records. Statistical analyses encompassed Kaplan-Meier estimates.
resultsEighty-seven patients were included (mean age 43 years; 75.9% female; 88.5% relapsing-remitting phenotype). Over a median 22-month follow-up, treatment persistence was 95.4%. Annualised relapse rate (ARR) declined from 0.48 pre-treatment to 0.03 on treatment. No evidence of disease activity (NEDA-3) was achieved in 93.1%, with no significant differences between treatment-naïve and previously treated patients. Sustained CD19
conclusionIn this Spanish real-world single-centre cohort, ofatumumab demonstrated high persistence, substantial suppression of inflammatory activity, and a favourable safety profile in routine clinical practice. Sustained B cell depletion aligned with clinical and radiological stability. These findings support the real-world effectiveness of ofatumumab across diverse patient profiles and complement evidence from pivotal trials. Further prospective studies with broader populations and longer follow-up are warranted to refine understanding of long-term outcomes and determinants of treatment response variability.
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