BOOSTER DOSE IMMUNOGENICITY


95% to 97% of subjects who received a prior dose of MENVEO achieved seroresponse for serogroups A, C, W-135, and Y1,2

  • In a multicenter, open-label trial conducted in the USA, 601 subjects aged 15-51 years* received a single booster dose of MENVEO 4 to 6 years after prior vaccination with MENVEO (n=301; median age: 16 years) or Menactra (n=300; median age: 16 years)1
  • The co-primary immunogenicity endpoints were hSBA seroresponse to each serogroup 29 days (a) following a booster vaccination with MENVEO given to subjects who received a prior dose of MENVEO, and (b) following a booster vaccination with MENVEO given to subjects who received a prior dose of Menactra1
  • Similar seroresponse rates were observed for subjects who received a booster vaccination with MENVEO following a prior dose of either MENVEO or Menactra1,2

Seroresponse at Day 29 After a Booster Dose of MENVEO2

MENVEO for 2-vial presentation: Seroresponse at Day 29 After a Booster Dose
MENVEO for 2-vial presentation: Seroresponse at Day 29 After a Booster Dose

Subjects aged 15-51 years were primed with MENVEO or Menactra 4-6 years prior to the booster dose of MENVEO. The 15- to 55-year-old age group (ie, the naïve group) included individuals who received their first and only MenACWY dose as MENVEO.1,2

Seroresponse was defined as (a) postvaccination hSBA ≥1:16 for subjects with a baseline hSBA <1:4 or (b) at least 4-fold higher than baseline titers for subjects with a prevaccination hSBA ≥1:4.1

A single booster dose of MENVEO using either the 2-vial presentation or the 1-vial presentation may be administered to individuals who are at continued risk for meningococcal disease if at least 4 years have elapsed since a prior dose of a MenACWY meningococcal (serogroups A, C, Y, W-135) conjugate vaccine.1

Vaccination may not protect all recipients.


hSBA=human serum bactericidal assay.