Abstract
Background
Multiple sclerosis (MS) is an autoimmune, neuroinflammatory, and neurodegenerative disease of the central nervous system. B cells have recently emerged as a promising target to significantly reduce inflammatory disease activity in MS, with successful trial studies using antiCD20 therapies. However, real-life data about safety and efficacy are limited.
Objectives
To analyze the clinical and radiological inflammatory activity, adherence to therapy, and safety of rituximab (RTX) in an MS patients’ sample, treated from 2015 to 2018 in our center
Patients and methods
Retrospective study on prospectively collected data about relapses, disability progression, and radiological activity (new T2 lesions and Gd-enhancing lesions) were recorded and used to assess no evidence of disease activity (NEDA) at 12 months. RTX-related adverse events were recorded. RTX was administered intravenously at a dosage of 1000 mg twice 2 weeks apart, then every 6 months.
Results
Sixty-nine patients were included. Fifty-three (76.8%) had a relapsing-remitting, two a primary progressive course, and 14 a secondary progressive course. The mean follow-up period was 16 ± 9.7 months. Thirty-five (50.7%) patients had relapses in the year prior to RTX therapy, with a mean annualized relapse rate of 0.75, significantly reduced to 0.36 at 12 months (p < 0.001). Among the 36 patients included in the study who had an MRI available at 12 months, MRI activity was reduced from 88% (n = 32) to 8.3% (n = 3) at follow-up (p < 0.001). Twelve (17.4%) patients suspended RTX during the study.
Conclusions
Our real-life experience confirms that off-label therapy with RTX may represent a valid, cost-effective therapeutic option in MS.
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Data availability
The data that support the findings of this study are available from the corresponding author, MPA, upon reasonable request.
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MP Amato received research grants and honoraria as a speaker and member of advisory boards from Bayer, Biogen, Merck, Novartis, Sanofi Genzyme, Teva, Almirall, and Roche. E Portaccio served as scientific advisory board for Biogen Idec and Merck Serono; received honoraria for speaking and funding for traveling from Biogen, Genzyme, Novartis, Merck, and Teva; and received research support from Merck Serono. L. Pastò and L. Razzolini received editorial grant from Teva, Almirall, Genzyme, and Merck. All other authors declare that they have no conflict of interest.
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This study was approved by the institutional review board of the University of Florence, Italy, and have therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
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Bellinvia, A., Prestipino, E., Portaccio, E. et al. Experience with rituximab therapy in a real-life sample of multiple sclerosis patients. Neurol Sci 41, 2939–2945 (2020). https://doi.org/10.1007/s10072-020-04434-1
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DOI: https://doi.org/10.1007/s10072-020-04434-1