Efficacy and safety of rituximab in relapsing and progressive multiple sclerosis: a hospital-based study

Carmen Alcalá1, F Gascón2, F Pérez-Miralles3

  • 1Unit of Neuroimmunology, Department of Neurology, Hospital Universitari i Politècnic La Fe, 106 Avenue Fernando Abril Martorell, 46026, Valencia, Spain. mc.alcalavicente@gmail.com.

Abstract

Insights

Rituximab significantly reduced relapse rates and disease progression in multiple sclerosis (MS) patients. This B-cell depleting therapy demonstrated effectiveness and safety in both relapsing-remitting MS and selected progressive MS cases.

Area of Science:

  • Neuroimmunology
  • Clinical Neurology
  • Pharmacology

Background:

  • Rituximab is a potential therapeutic option for relapsing-remitting multiple sclerosis (RRMS) and progressive multiple sclerosis (PMS).
  • Assessing rituximab's efficacy and safety in MS is crucial for treatment decisions.

Purpose of the Study:

  • To evaluate the clinical and radiological effectiveness of rituximab in MS patients.
  • To assess the safety profile of rituximab treatment in RRMS and PMS.

Main Methods:

  • Observational study design.
  • Included 90 patients with RRMS (31) and PMS (59) with active disease despite standard treatments.
  • Collected data on annualized relapse rate (ARR), gadolinium-enhanced lesions, and Expanded Disability Status Scale (EDSS).

Main Results:

  • Rituximab reduced ARR by 88.4% (p < 0.001) and EDSS significantly decreased to 4.6 (p = 0.01) after one year.
  • 70% of patients showed no evidence of disease activity (74.2% RRMS, 67% PMS).
  • Most common side effect was mild infusion-related symptoms (18.8%); three thrombotic events occurred.

Conclusions:

  • Rituximab is an effective and safe treatment for aggressive RRMS.
  • Selected PMS patients may also benefit from rituximab therapy.

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