Epub: Bar-Or et ak. Teriflunomide effect on immune response to influenza vaccine in patients with multiple sclerosis. Neurology. 2013 Jul 12. [Epub ahead of print]
OBJECTIVE: To investigate the effect of teriflunomide on the efficacy and safety of seasonal influenza vaccine.
METHODS: The 2011/2012 seasonal influenza vaccine (containing H1N1, H3N2, and B strains) was administered to RRMSers treated for ≥6 months with teriflunomide 7 mg (n = 41) or 14 mg (n = 41), or interferon-β-1 (IFN-β-1; n = 46). The primary endpoint was the proportion of MSers with influenza strain-specific antibody titers ≥40, 28 days postvaccination.
RESULTS: More than 90% of MSers achieved postvaccination antibody titers ≥40 for H1N1 and B in all groups. For H3N2, titers ≥40 were achieved in ≥90% of MSers in the 7 mg and IFN-β-1 groups, and in 77% of the 14-mg group, respectively. A high proportion of MSers already had detectable antibodies for each influenza strain at baseline. Geometric mean titer ratios (post/prevaccination) were ≥2.5 for all groups and strains, except for H1N1 in the 14-mg group (2.3). The proportion of MSers with a prevaccination titer <40 achieving seroprotection was ≥61% across the 3 treatment groups and 3 influenza strains. However, fewer MSers in the 14-mg than the 7-mg or IFN-β-1 groups exhibited seroprotection to H3N2 (61% vs 78% and 82%, respectively).
CONCLUSION: Teriflunomide-treated MSers generally mounted effective immune responses to seasonal influenza vaccination, consistent with preservation of protective immune responses.
CLASSIFICATION OF EVIDENCE: This study provides Class II evidence that teriflunomide generally does not adversely impact the ability of MSers with RMS to mount immune responses to influenza vaccination.
CoI: multiple
Research: Seasonal/Flu vaccines in MS-Safety – Multiple Sclerosis …
10 Nov 2011
RESULTS: Five of the 49 vaccinated patients reported side effects of fever or flu-like symptoms associated with the administration of either of the vaccines: there were no complications or need for hospitalization. No patient …
http://multiple-sclerosis-research.blogspot.com/
Multiple Sclerosis Research: H1N1 flu vaccine is safe in MS’ers
12 Aug 2011
H1N1 flu vaccine is safe in MS’ers. Epub ahead of print: Farez et al. H1N1 vaccination does not increase risk of relapse in multiple sclerosis: a self-controlled case-series study. Mult Scler. 2011 Aug 9. A small study showing …
http://multiple-sclerosis-research.blogspot.com/
