Ocrelizumab in early relapsing-remitting multiple sclerosis: first interim analysis of the MUSPO Italian prospective

Massimo Filippi1,2,3,4,5, Emanuele D'Amico6, Vincenzo Brescia Morra7,8

  • 1Neurology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60 - 20132, Milan, Italy. filippi.massimo@hsr.it.

Abstract

Insights

This study describes the baseline characteristics of early multiple sclerosis patients treated with ocrelizumab in Italy. The MUSPO cohort is young, mildly disabled, and provides a foundation for evaluating treatment effectiveness.

Area of Science:

  • Neurology
  • Immunology
  • Clinical Research

Background:

  • Limited real-world data exists for ocrelizumab in early, minimally pretreated relapsing multiple sclerosis (MS).
  • Understanding patient characteristics is crucial for evaluating treatment outcomes.

Purpose of the Study:

  • To characterize the demographic, clinical, radiological, and treatment profiles of the MUSPO cohort.
  • To establish a baseline for longitudinal assessment of ocrelizumab effectiveness in Italian MS patients.

Main Methods:

  • Prospective, multicenter, observational study (MUSPO) enrolling adults with relapsing-remitting MS (RRMS) and rapidly evolving severe RRMS (RES).
  • Enrollment occurred ~6 months after ocrelizumab initiation, with MRI and cognitive assessments.
  • NEDA-plus (No Evidence of Disease Activity-plus) will be assessed longitudinally.

Main Results:

  • 199 patients (59 RRMS, 140 RES) were analyzed from 31 Italian sites.
  • Median Expanded Disability Status Scale (EDSS) was 2.0, indicating mild disability.
  • 29.6% had prior disease-modifying therapy (DMT) exposure; median time to ocrelizumab was 1.4 months.

Conclusions:

  • The MUSPO cohort represents a young, mildly disabled, early-treated population.
  • Comprehensive baseline MRI and limited prior DMT use support robust evaluation of NEDA-plus and effectiveness.
  • This study provides a strong foundation for real-world ocrelizumab effectiveness research in Italy.

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