Disease Modifying Therapies – Mechanism of Action Poster Presentation

P0344 - Injectable versus oral first-line disease-modifying therapies: results from Italian MS register (ID 1384)

Speakers
  • E. D'Amico
Authors
  • E. D'Amico
  • A. Zanghì
  • M. Romeo
  • E. Cocco
  • G. Maniscalco
  • V. Bresciamorra
  • D. Paolicelli
  • G. De Luca
  • S. Galgani
  • M. Amato
  • G. Salemi
  • M. Inglese
  • P. Confalonieri
  • G. Lus
  • A. Gallo
  • M. Vianello
  • M. Onofrj
  • C. Pozzilli
  • M. Filippi
  • M. Trojano
  • F. Patti
Presentation Number
P0344
Presentation Topic
Disease Modifying Therapies – Mechanism of Action

Abstract

Background

The advent of oral first-line disease-modifying therapies (DMTs) for relapsing-remitting multiple sclerosis (RRMS) has expanded considerably the therapeutic landscape. However, here is an important need to gather real-world evidence data regarding long-term treatment effectiveness and safety in comparison to the old first-line injectables DMTs.

Objectives

To compare old injectable and oral first line DMTs for time to first relapse, time to confirmed disability progression (CDP), and time to discontinuation in a cohort of RRMS patients extracted from the Italian MS Registry.

Methods

Multicentre, observational, retrospectively acquired and propensity-adjusted cohort study of RRMS-naïve patients in the Italian MS Register starting injective or oral first line DMTs between 1 January 2010 and 31 December 2017 to evaluate their impact on disability outcomes in patients. Enrolled patients were divided into two groups: injectable group (IG) and oral group (OG).

Results

From a cohort of 11,416 patients, 4,602 were enrolled (3,919 on IG and 683 on OG). IG had higher rate of women (67.3% vs 63.4%, p<.05) and a lower mean age (36.1±10.9 vs 38.9±11.8, p<.001). For the event time to first relapse, Cox models after PS adjustment revealed a lower risk for OG patients (HR 0.58 CI95% 0.47-0.70, p<0.001). About the risk of CDP, no differences were found in the two groups (HR 1.14 CI95% 0.88-1.48, p=0.306). About the risk of DMT discontinuation, OG patients showed lower risk (HR 0.70 CI95% 0.57-0.86 p=0.001) than IG patients.

Conclusions

Real-world data from the Italian MS registry suggest that first line oral DMTs are associated to lower risks of experiencing a new relapse and of therapy discontinuation in comparison to injectable DMTs.

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