2022
DOI: 10.1016/j.msard.2022.104371
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Humoral efficacy of the third SARS-CoV-2 vaccine dose in Multiple Sclerosis subjects undergoing different disease-modifying therapies

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Cited by 10 publications
(10 citation statements)
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“…While immune responses to primary vaccination are relatively well studied, less is known about the durability of these vaccination responses. Similar to the kinetics of antibodies in the general population, several studies showed a decrease in SARS-CoV-2-specific humoral responses during the six months after initial vaccination in anti-CD20-treated people with MS (pwMS) [ 17 , 18 , 19 , 20 , 21 , 22 ], whereas other studies reported no significant reduction in antibody titers over time, possibly attributable to initially low titers [ 3 , 23 , 24 , 25 , 26 ]. As for virus-specific T-cell responses, two studies reported a decline thereof in the months following primary vaccination [ 16 , 18 ].…”
Section: Introductionmentioning
confidence: 87%
“…While immune responses to primary vaccination are relatively well studied, less is known about the durability of these vaccination responses. Similar to the kinetics of antibodies in the general population, several studies showed a decrease in SARS-CoV-2-specific humoral responses during the six months after initial vaccination in anti-CD20-treated people with MS (pwMS) [ 17 , 18 , 19 , 20 , 21 , 22 ], whereas other studies reported no significant reduction in antibody titers over time, possibly attributable to initially low titers [ 3 , 23 , 24 , 25 , 26 ]. As for virus-specific T-cell responses, two studies reported a decline thereof in the months following primary vaccination [ 16 , 18 ].…”
Section: Introductionmentioning
confidence: 87%
“…50 Median IgG titers in 11 pwMS treated with DMF were comparable to those observed in healthy controls, 21 days after a third dose of BNT162b2. 51 However, a study assessing IFN-γ response to severe acute respiratory syndrome-coronavirus-2 spike protein antigens as a marker for the cellular response found that responses were not significantly different in pwMS on DMF following a booster vaccine, and responder rates were similar after two or three doses (68.4% and 71.4%, respectively). 52 Meta-analyses of COVID-19 vaccine response in pwMS found no significant effect of DMF on the serological response or seroconversion rates post-vaccination compared with untreated patients.…”
Section: Mechanisms Of Action and Immunological Effects Of Fumarates ...mentioning
confidence: 99%
“…20 Few studies have assessed the responses in pwMS on DMF following booster doses of COVID-19 vaccines, but outcomes reported so far for humoral responses indicate IgG titers and seroconversion rates comparable to those in healthy controls. 50,51 In an observational study, all 15 pwMS on DMF who received booster doses of BNT162b2 or Sinovac vaccines were seropositive at least 2 weeks afterward. 50 Median IgG titers in 11 pwMS treated with DMF were comparable to those observed in healthy controls, 21 days after a third dose of BNT162b2.…”
Section: Mechanisms Of Action and Immunological Effects Of Fumarates ...mentioning
confidence: 99%
“…Immune system dysregulation in PLWMS treated with immunosuppressive agents can result in vaccine hyporesponsiveness ( Otero-Romero et al, 2021 ). A growing body of literature showed a diminished humoral immune response following COVID-19 vaccine among MS patients receiving anti-CD20 agents and fingolimod ( Apostolidis et al, 2021 ; Capuano et al, 2022 ; Etemadifar et al, 2022 ; Holroyd et al, 2022 ; Maniscalco et al, 2022 ; Ozakbas et al, 2022 ; Satyanarayan et al, 2022 ; Tallantyre et al, 2022 ; Yeo et al, 2022 ). This finding was also observed after the booster dose of the vaccine ( Maniscalco et al, 2022 ; Wallach et al, 2022 ).…”
Section: Introductionmentioning
confidence: 99%