Key clinical point : In ocrelizumab-treated patients with multiple sclerosis (MS), a third SARS-CoV-2 vaccine boosted the T-cell response, but had no additive effect on the maximal T-cell response.
Major finding: SARS-CoV-2-specific T-cell response in patients treated with ocrelizumab was comparable to those not treated with disease modifying therapy (DMT) and healthy controls (HC) after the second SARS-CoV-2 vaccination; however, the third SARS-CoV-2 vaccination had no additive effect on T-cell response, but it did induce a booster response ( P < .05).
Study details: This was a prospective longitudinal study including patients with MS treated with ocrelizumab (n = 24), fingolimod (n = 12), or no DMT (n = 10) and HC (n = 12) who received three SARS-CoV-2 vaccine doses ( BNT162b2 [BioNTech-Pfizer] or CX-024414 [Moderna]).
Disclosures: This study was funded by The Netherlands Organisation for Health Research and Development . Some authors reported receiving consulting fees and research support from various sources.
Source: Cabeza VP et al. Longitudinal T-cell responses after a third SARS-CoV-2 vaccination in patients with multiple sclerosis on ocrelizumab or fingolimod. Neurol Neuroimmunol Neuroinflamm . 2022;9(4):e1178 (May 6). Doi: 10.1212/NXI.0000000000001178