• Elizabeth H Morrison, Katelyn Michtich, and Carrie M Hersh.
• University of California, Riverside School of Medicine, Riverside, California, 900 University Avenue, Riverside, California 92521, United States. Electronic address: ebanks@medsch.ucr.edu.
• Mult Scler Relat Disord. 2021 Jun 1; 51: 102913.

BackgroundThe COVID-19 crisis has created unanticipated changes in health care delivery for people living with multiple sclerosis (MS). The pandemic's rapid evolution has resulted in a knowledge gap in how COVID-19 has affected MS clinical practice. Our objective was to understand how the COVID-19 pandemic has affected clinical practice patterns in a nationwide cohort of MS clinicians across the United States.MethodsIn collaboration with the National Multiple Sclerosis Society (NMSS), we developed a 28-item SurveyMonkeyTM electronic questionnaire exploring MS specialists' perceptions of how COVID-19 has altered how they prescribe MS disease-modifying therapies (DMTs), provide telehealth and other services, and view issues affecting their own well-being including re-deployment to the front lines of COVID-19 care and availability of personal protective equipment (PPE). NMSS staff sent a recruitment email containing the electronic survey link to 188 clinicians who serve on regional NMSS Healthcare Provider Councils across the US, 86 (45.7%) of whom were MS specialist physicians.ResultsEighty-six of 188 potential respondents (45.7%) from 32 US states completed the survey including 45 physicians (41 neurologists, 3 physiatrists and 1 family physician), 18 rehabilitation therapists, 7 psychologists, 6 nurse practitioners, 4 social workers, 2 physician assistants, 2 nurses and 2 health professionals from other disciplines. More than 80% of all respondents working on-site in a health care setting believed they had adequate PPE. More than 41% were able to distance safely from others at work. Nearly 10% of respondents reported they had been re-deployed to the front lines of COVID-19 patient care, and an additional 16.9% anticipated being re-deployed. Among the MS specialist physician subgroup, nearly one-third reported using telemedicine to provide over 75% of their clinical care. Only 16.7% believed COVID-19 had not changed how they prescribe DMTs. Therapies prescribed more often during the pandemic included β-IFNs (28.6% of prescribers), natalizumab (23.8%), glatiramer acetate (21.4%) and teriflunomide (19%). DMTs prescribed less often included alemtuzumab (64.3% of prescribers), cladribine (54.8%), ocrelizumab and rituximab (50%), and fingolimod and siponimod (40.5%). For at least some of their patients during the pandemic, some MS specialists reported suspending certain DMTs including alemtuzumab (21.4% of prescribers), ocrelizumab and rituximab (16.7%) and cladribine (11.9%). Others reported extending DMT dosing intervals for natalizumab (38.1%), fingolimod and siponimod (11.9%).ConclusionsIn this nationwide survey, MS specialist physicians and other clinicians serving on regional NMSS Healthcare Provider Councils across the US reported profound changes in how they are delivering MS care during the COVID-19 pandemic.Copyright © 2021. Published by Elsevier B.V.

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