Universidade Estadual Paulista (Unesp), Faculdade de Medicina, Botucatu
Neurology, Psychology and Psychiatry

Author Of 1 Presentation

COVID-19 Late Breaking Abstracts

SS02.04 - First results of the COVID-19 in MS Global Data Sharing Initiative suggest anti-CD20 DMTs are associated with worse COVID-19 outcomes

Abstract

Background

As the COVID-19 pandemic amplifies, efforts to minimise the risk on vulnerable people are essential. People with multiple sclerosis (MS) may be a vulnerable group due to the high proportion taking long-term immunosuppressive disease-modifying therapies (DMTs). Studies from Italy and France suggest older age, higher disability and progressive MS are associated with severe COVID-19, yet there remains uncertainty around the influence of DMTs.

Objectives

Given the many approved MS DMTs and the relatively low frequency of COVID-19 in MS patients per country, international data sharing is desirable to examine the impact of DMTs on COVID-19 severity. Here, we present the first results of the COVID-19 in MS global data sharing initiative of the MS International Federation and MS Data Alliance and many other data partners to inform MS clinical management during the COVID-19 pandemic.

Methods

Clinician-reported data from 21 countries were aggregated into a dataset of 1540 patients. Characteristics of admission to hospital, admission to intensive care unit (ICU), need for artificial ventilation, and death, were assessed in patients with confirmed or suspected COVID-19 infection using log-binomial regression. Adjusted prevalence ratios (aPR) were calculated adjusting for age, sex, MS type, and Expanded Disability Status Scale (EDSS).

Results

Of 1540 patients, 476 (30.9%) with suspected and 776 (50.4%) with confirmed COVID-19 were included in the analysis. Older age, progressive MS and higher EDSS were associated with higher frequencies of severe outcomes. Anti-CD20 DMTs, ocrelizumab and rituximab, were positively associated with hospital admission (aPRs=1.19 & 1.58), ICU admission (aPRs=3.53 & 4.12), and the need for artificial ventilation (aPRs=3.17 & 7.27) compared to dimethyl fumarate. Higher frequencies of all three outcomes were associated with combined anti-CD20 DMT use compared to all other DMTs (hospitalisation aPR=1.49; ICU aPR=2.55; ventilation aPR=3.05) and compared to natalizumab (hospitalisation aPR=1.99; ICU aPR=2.39; ventilation aPR=2.84). Importantly, associations persisted on restriction to confirmed COVID-19 cases and upon exclusion of each contributing data source in turn. No associations were observed between DMTs and death.

Conclusions

This study used the largest federated international cohort of people with MS and COVID19 currently available. We demonstrate a consistent association of anti-CD20 DMTs with hospitalisation, ICU admission and use of artificial ventilation suggesting their use among MS patients at risk for COVID-19 exposure may be a risk factor for more severe COVID-19 disease. To address study limitations, further research incorporating comorbidities, smoking and body mass index is required. Alternative study designs are needed to address questions on COVID-19 susceptibility among people with MS.

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Author Of 1 Presentation

COVID-19 Late Breaking Abstracts

LB1247 - Clinical features of COVID-19 in patients with neuromyelitis optica spectrum disorders  (ID 2133)

Abstract

Background

Brazil is currently considered one of the main epicenters of the coronavirus disease 2019 (COVID-19). There are many concerns related to neuromyelitis optica spectrum disorders (NMOSD) patients. In addition to the older age of onset, higher disability and the higher rate of hospitalization compared to MS, many of the commonly used preventive therapies for NMOSD are cell depleting immunosuppressants with increased risk of viral and bacterial infections.

Objectives

To describe the frequency and clinical characteristics of COVID-19 in neuromyelitis optica spectrum disorder (NMOSD) patients in Brazil.

Methods

The Brazilian Study Group NMOSD of the Brazilian Academy of Neurology has set up the registration of COVID-19 cases in NMOSD patients, using a designed web-based case report form, encompassing neuroimmunology centers and individual neurologists across the country. Data collected between March 19thand July 31th 2020 were uploaded at the REDONE.br platform. Inclusion criteria were: (i) NMOSD diagnosis according to 2015 International Panel; (ii) confirmed SARS-Cov-2 infection (RT-PCR or serology) or clinical suspicion of COVID-19 diagnosed according to CDC/CSTE case definition. Demographic data, NMOSD clinical characteristics pre and post infection, comorbidities, immunosuppressive treatment, COVID-19 clinical features and severity were described.

Results

Among the 2,061 NMOSD patients inscribed at the REDONE.br platform, 34 patients (29 women) aged 37.1 years (range 8-77), with disease onset at 31.2 years (range 4-69) and disease duration of 5.9 years (range 0.2-20.5), developed COVID-19 (18 confirmed and 16 probable cases). Most patients exhibiting mild disease was treated at home (76.5%) and 4 patients needed treatment at intensive care units (severe cases); one patient died. Four patients had NMOSD relapse during the infection; one with partial recovery.

Conclusions

The clinical features of COVID-19 in NMOSD patients were described, stressing the combination of comorbidities and immunosuppression. Mild COVID-19 was the main presentation. Collaborative studies using shared NMOSD data are needed to suitably define factors related to COVID-19 outcome.

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