Long-term clinical outcomes in patients with CIS treated with interferon beta-1b: results from the 15-year follow up of the BENEFIT trial

Other authors

Institut Català de la Salut

[Kappos L] Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), Departments of Head-Organs, Spine and Neuromedicine, Clinical Research, Biomedicine and Biomedical Engineering, University Hospital and University of Basel, Basel, Switzerland. [Edan G] CHU Hôpital Pontchaillou, Rennes, France. [Freedman MS] Department of Medicine, University of Ottawa and The Ottawa Hospital Research Institute, Ottawa, Canada. [Hartung HP] Department of Neurology, Medical Faculty, Heinrich-Heine Universität, Düsseldorf, Germany. Brain and Mind Center, University of Sydney, Sydney, Australia. Department of Neurology, Palacky University in Olomouc, Olomouc, Czech Republic. Department of Neurology, Medical University of Vienna, Vienna, Austria. [Montalbán X] Centre d’Esclerosi Múltiple de Catalunya (CEMCAT), Barcelona, Spain. Vall d’Hebron Hospital Universitari, Barcelona, Spain. [Barkhof F] Amsterdam UMC, Location Vrije Universiteit, Amsterdam, The Netherlands. Queen Square Institute of Neurology and Centre for Medical Image Computing, UCL, London, UK

Vall d'Hebron Barcelona Hospital Campus

Publication date

2024-07-18T09:19:46Z

2024-07-18T09:19:46Z

2024-07

Abstract

Immunotherapy; Interferon beta-1b; Multiple sclerosis


Immunoteràpia; interferó beta-1b; Esclerosi múltiple


Inmunoterapia; Interferón beta-1b; Esclerosis múltiple


Multiple sclerosis (MS) treatment intervention with immunomodulating therapy at early disease stage improves short term clinical outcomes. The objective of this study is to describe the long-term outcomes and healthcare utilization of patients with clinically isolated syndrome (CIS) included in the Betaferon®/Betaseron® in Newly Emerging MS for Initial Treatment (BENEFIT) randomized, parallel group trial. In BENEFIT patients were assigned to “early” IFNB-1b treatment or placebo (“delayed” treatment). After 2 years or conversion to clinically definite multiple sclerosis (CDMS), all patients were offered IFNB-1b and were reassessed 15 years later. Of 468 patients, 261 (55.8%) were enrolled into BENEFIT 15 (161 [55.1%] from the early, 100 [56.8%] from the delayed treatment arm). In the full BENEFIT analysis set, risk of conversion to CDMS remained lower in the early treatment group ( – 30.5%; hazard ratio 0.695 [95% CI, 0.547–0.883]; p = 0.0029) with a 15.7% lower risk of relapse than in the delayed treatment group (p = 0.1008). Overall, 25 patients (9.6%; 9.9% early, 9.0% delayed) converted to secondary progressive multiple sclerosis. Disability remained low and stable with no significant difference between groups in Expanded Disability Status Scale score or MRI metrics. Paced Auditory Serial Addition Task-3 scores were better in the early treatment group (p = 0.0036 for treatment effect over 15 years). 66.3% of patients were still employed at Year 15 versus 74.7% at baseline. In conclusion, results 15 years from initial randomization support long-term benefits of early treatment with IFNB-1b.


Open access funding provided by University of Basel. This study was funded by Bayer AG.

Document Type

Article


Published version

Language

English

Publisher

Springer

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Attribution 4.0 International

http://creativecommons.org/licenses/by/4.0/

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