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