Abstract
Background and objectivesB-cell-depleting therapies may affect the development of a protective immune response following vaccination against SARS-CoV-2. It is important to have a different strategy for creating immunity in this patient population. The objective of this study was to evaluate whether Evusheld (tixagevimab co-packaged with cilgavimab) affects the antibody response to SARS-CoV-2 following an attenuated response to the vaccines against SARS-CoV-2 in patients on b-cell depleters who have multiple sclerosis. MethodsThis was a single-center cohort study performed at Methodist Hospitals in Merrillville, IN, USA. It included patients with multiple sclerosis treated with ocrelizumab and ofatumumab. Patients had already received the mRNA vaccinations against SARS-CoV-2 and had demonstrated an attenuated response on baseline antibody testing. All participants received 150 mg of Evusheld. Follow-up antibody levels were measured at least two weeks following Evusheld injections. ResultsAll patients (100%) developed the highest level of antibodies possible at least two weeks following Evusheld injections. DiscussionIn this study, patients with MS who had an attenuated antibody response to the COVID-19 vaccines due to exposure to b-cell depleters now had the highest antibody response possible after receiving Evusheld. This is important as it provides a different strategy for protection against COVID-19.
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