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Vaccine. 2007 Dec 12;25(51):8487-99. Epub 2007 Oct 25.

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.

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  • 1Murdoch Children's Research Institute and School of Population Health, The University of Melbourne, Australia. t.nolan@unimelb.edu.au

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.

[PubMed - indexed for MEDLINE]
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