ObjectiveTo understand COVID-19 characteristics in people with multiple sclerosis (MS) and identify high-risk individuals due to their immunocompromised state resulting from the use of disease-modifying treatments.MethodsRetrospective and multicenter registry in patients with MS with suspected or confirmed COVID-19 diagnosis and available disease course (mild = ambulatory; severe = hospitalization; and critical = intensive care unit/death). Cases were analyzed for associations between MS characteristics and COVID-19 course and for identifying risk factors for a fatal outcome.ResultsOf the 326 patients analyzed, 120 were cases confirmed by real-time PCR, 34 by a serologic test, and 205 were suspected. Sixty-nine patients (21.3%) developed severe infection, 10 (3%) critical, and 7 (2.1%) died. Ambulatory patients were higher in relapsing MS forms, treated with injectables and oral first-line agents, whereas more severe cases were observed in patients on pulsed immunosuppressors and critical cases among patients with no therapy. Severe and critical infections were more likely to affect older males with comorbidities, with progressive MS forms, a longer disease course, and higher disability. Fifteen of 33 patients treated with rituximab were hospitalized. Four deceased patients have progressive MS, 5 were not receiving MS therapy, and 2 were treated (natalizumab and rituximab). Multivariate analysis showed age (OR 1.09, 95% CI, 1.04–1.17) as the only independent risk factor for a fatal outcome.ConclusionsThis study has not demonstrated the presumed critical role of MS therapy in the course of COVID-19 but evidenced that people with MS with advanced age and disease, in progressive course, and those who are more disabled have a higher probability of severe and even fatal disease.

Background/Aims: The immunomodulatory effect of glatiramer acetate may help in reducing multiple sclerosis (MS)-related fatigue; however, evidence to prove this notion especially after switching from another immunomodulatory therapy is limited. We assessed the 6-month effect of glatiramer acetate on MS-related fatigue in patients switching from interferon-β (IFN-β) in clinical practice. Methods: This was an observational study including 54 patients with relapsing-remitting MS that showed moderate/severe fatigue primarily caused by MS before switching from IFN-β to glatiramer acetate and received glatiramer acetate for ≥6 months in daily practice. Study data were retrospectively collected through chart review at treatment switch and over the following 6 months on glatiramer acetate. Results: Over the 6-month administration of glatiramer acetate, scores on the Modified Fatigue Impact Scale decreased: overall (p < 0.001), physical scale (p < 0.001), cognitive scale (p < 0.001), and psychosocial scale (p < 0.001). The Work Productivity and Activity Impairment Questionnaire showed improvements in work (p = 0.009) and other daily activity impairment (p < 0.001). Health-related quality of life as per the Multiple Sclerosis Impact Scale also improved: physical score (p < 0.001) and psychological score (p < 0.001). Conclusion: Patients with moderate/severe fatigue switching from IFN-β to glatiramer acetate may benefit from fatigue improvements that contribute to reduce their work/activity impairment and improve their quality of life.

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