1. Tixagevimab and cilgavimab use in Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorder during anti-CD20 treatment: A single-center experience
- Author
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Gelibter, S, Pirro, F, Saraceno, L, Susani, E, Moioli, M, Puoti, M, Agostoni, E, Protti, A, Gelibter S., Pirro F., Saraceno L., Susani E., Moioli M. C., Puoti M., Agostoni E. C., Protti A., Gelibter, S, Pirro, F, Saraceno, L, Susani, E, Moioli, M, Puoti, M, Agostoni, E, Protti, A, Gelibter S., Pirro F., Saraceno L., Susani E., Moioli M. C., Puoti M., Agostoni E. C., and Protti A.
- Abstract
Background: B-cell-depleting treatments, such as ocrelizumab and rituximab (anti-CD20), reduce humoral response to SARS-CoV-2 in people with Multiple Sclerosis (pwMS) and Neuromyelitis Optica Spectrum Disorder (NMOSD) and are associated with an increased risk of a more severe course of COVID-19 disease. The combination of tixagevimab and cilgavimab was authorized for COVID-19 prevention in immunocompromised subjects at high risk of severe COVID-19 disease, including patients treated with anti-CD20. Few real-world studies are available regarding the use of tixagevimab/cilgavimab in pwMS/NMOSD. In the present study, we describe the use of tixagevimab/cilgavimab for SARS-CoV-2 pre-exposure prophylaxis in a cohort of pwMS and NMOSD, treated with ocrelizumab and rituximab respectively. Methods: 26 subjects were treated with tixagevimab/cilgavimab, while we used 18 patients as the control group. We collected clinical data at baseline in all patients and during scheduled follow up evaluations. SARS-CoV-2 serological status pre- and post-tixagevimab/cilgavimab treatment was available for 10 patients. Results: We observed no adverse events following tixagevimab/cilgavimab treatment. Post-tixagevimab/cilgavimab anti-Spike-1-RBD IgG were significantly higher when compared to baseline values. No difference was found when comparing the percentage of COVID-19 infections between groups. All patients infected with SARS-CoV-2 had mild disease which did not require hospitalization. In patients treated with tixagevimab/cilgavimab, the rate of infection among patients exposed to SARS-CoV-2 was lower, without reaching statistical significance. We observed a significantly longer negativization time in the treated group. Conclusions: Our results are not consistent with what was observed in the registration trial and some more recent studies. We did not observe a difference in COVID-19 incidence nor in disease severity in MS and NMOSD between treated and untreated patients. Our different r
- Published
- 2023