A novel combined Haemophilus influenzae type b-Neisseria meningitidis serogroups C and Y-tetanus-toxoid conjugate vaccine is immunogenic and induces immune memory when co-administered with DTPa-HBV-IPV and conjugate pneumococcal vaccines in infants

Vaccine. 2007 Dec 12;25(51):8487-99. doi: 10.1016/j.vaccine.2007.10.013. Epub 2007 Oct 25.

Abstract

Immunogenicity and safety of a novel combined Haemophilus influenzae type b-Neisseria meningitidis serogroups C and Y-tetanus-toxoid conjugate vaccine (Hib-MenCY-TT) candidate was evaluated when co-administered with DTPa-HBV-IPV(Pediarix)+PCV7(Prevnar) at 2-4-6 months of age. Anti-PRP concentrations >or= 1.0 microg/mL were observed in 92.9-98.7%, rSBA-MenC/Y titres >or= 1:8 in >98%, rSBA-MenC/Y titres >or= 1:128 in >95.8 and >89.9% subjects. PRP and MenC responses were similar to respective controls (ActHIB and Menjugate) including for antibody persistence. Response to co-administered vaccines was not impaired. Polysaccharide challenge (PRP, PSC, PSY at 11-14 months of age) evidenced immune memory was induced for Hib, MenC/Y conjugate components. The safety profile of Hib-MenCY-TT was similar to controls. Hib-MenCY-TT administered according to the current US Hib vaccine schedule has the potential to induce protective antibodies against Hib and meningococcal-CY disease in infants and toddlers.

Trial registration: ClinicalTrials.gov NCT00127855.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Antibodies, Bacterial / analysis
  • Antibodies, Bacterial / biosynthesis
  • Bacterial Vaccines / adverse effects
  • Bacterial Vaccines / immunology*
  • Blood Bactericidal Activity
  • Complement System Proteins / analysis
  • Complement System Proteins / biosynthesis
  • Diphtheria-Tetanus-Pertussis Vaccine
  • Enzyme-Linked Immunosorbent Assay
  • Female
  • Haemophilus Vaccines / adverse effects
  • Haemophilus Vaccines / immunology*
  • Haemophilus influenzae type b / immunology*
  • Hepatitis B Vaccines
  • Humans
  • Immunologic Memory / drug effects
  • Infant
  • Male
  • Neisseria meningitidis, Serogroup C / immunology*
  • Neisseria meningitidis, Serogroup Y / immunology*
  • Poliovirus Vaccine, Inactivated
  • Tetanus Toxoid / adverse effects
  • Tetanus Toxoid / immunology*
  • Vaccines, Combined / immunology*
  • Vaccines, Conjugate / adverse effects
  • Vaccines, Conjugate / immunology

Substances

  • Antibodies, Bacterial
  • Bacterial Vaccines
  • DTPa-HBV-IPV combined vaccine
  • Diphtheria-Tetanus-Pertussis Vaccine
  • Haemophilus Vaccines
  • Hepatitis B Vaccines
  • Hib-MenCY-TT vaccine
  • Poliovirus Vaccine, Inactivated
  • Tetanus Toxoid
  • Vaccines, Combined
  • Vaccines, Conjugate
  • Complement System Proteins

Associated data

  • ClinicalTrials.gov/NCT00127855