Unidad de neuroinmunología, Clínica Alemana de Santiago

Author Of 1 Presentation

Observational Studies Poster Presentation

P0905 - Real-world experience of ocrelizumab in multiple sclerosis patients in Latin America (ID 1307)

Speakers
Presentation Number
P0905
Presentation Topic
Observational Studies

Abstract

Background

Ocrelizumab was approved in March 2017 for the treatment of relapsing or primary progressive MS. Despite the abundance of information concerning the efficacy and safety of ocrelizumab in phase III clinical trials, there is scarce evidence regarding real world patient profiles

Objectives

The aim of this study was to evaluate patient profiles, effectiveness and persistence to treatment in patients who used ocrelizumab for the treatment of multiple sclerosis (MS) in Latin America (LATAM)

Methods

retrospective multicenter study in Argentina, Chile and Mexico. Medical record databases of patients who received ocrelizumab and were followed for at least 1 year before and after treatment initiation were analyzed. Demographic and clinical variables were described as well as the effectiveness outcomes that included the proportion of patients free from clinical relapses, from disability progression, from new or enlarging T2 or T1 gadolinium-enhancing lesions on annual MRI. The proportion of patients discontinuing the treatment and the reason were registered.

Results

A total of 81 patients were included. The most frequent phenotype was relapsing remitting MS in 64.2% of patients. The mean age at study entry was 41.3 ± 12 years and 51.8 % were women. A total of 38% had relapse activity during the previous 12 months of ocrelizumab initiation, with a mean relapse rate of 1.3 ±0.6 during that period. 75 % were free from clinical relapses and 91% were free from gadolinium enhancing lesions in RRMS. Ocrelizumab discontinuation during the first 12 months was observed in 3 patients (3.7%). The mean persistence observed during the first year follow up was 338 ± 24 days.

Conclusions

Our study is in line with previous randomized clinical trials and recent real-world studies describing patient profiles effectiveness and persistence to ocrelizumab treatment in MS patients in LATAM.

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