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Pediatr Infect Dis J. 2007 Jan;26(1):1-7.

Immunogenicity and reactogenicity of primary immunization with a novel combined Haemophilus influenzae Type b and Neisseria meningitidis Serogroup C-tetanus toxoid conjugate vaccine coadministered with a Diphtheria-tetanus-acellular Pertussis-hepatitis B-inactivated poliovirus vaccine at 2, 4 and 6 months.

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Móstoles Hospital, Madrid, Spain.



This phase II study evaluated the immunogenicity and reactogenicity of primary vaccination with a novel Hib-MenC conjugate vaccine (GlaxoSmithKline [GSK] Biologicals) coadministered with DTPa-HBV-IPV (GSK Biologicals) at 2, 4 and 6 months.


Healthy infants were randomized to receive Hib-MenC coadministered with DTPa-HBV-IPV (N = 117) or MenC-CRM (Wyeth) coadministered with DTPa-HBV-IPV/Hib (GSK Biologicals; N = 120) at 2, 4 and 6 months. Antibody concentrations were measured before vaccination and after doses 2 and 3. Solicited local and general symptoms, unsolicited symptoms and serious adverse events (SAEs) were recorded.


All subjects in the Hib-MenC group had seroprotective titers of anti-PRP antibodies (>or=0.15 microg/mL) and SBA-MenC titers (>or=1:8) 1 month after the third dose. These responses were noninferior to those seen in the control group, in which a 99.1% seroprotection rate was observed for both Hib and MenC. At that time, anti-PRP and SBA-MenC GMTs were significantly higher in the Hib-MenC group (12.8 microg/mL and 2467.1 microg/mL, respectively) than in the control group (3.8 microg/mL and 1833.7 microg/mL). High seroprotection rates were already observed after the second dose of Hib-MenC; 96.4% and 100% of subjects were seroprotected to Hib and MenC, respectively. Immune responses to coadministered antigens were unimpaired; seroprotection/vaccine response rates >or=96.5% were recorded postdose 3 in the Hib-MenC group. No differences in reactogenicity were seen between the 2 study groups.


Coadministration of a Hib-MenC conjugate vaccine with DTPa-HBV-IPV is well tolerated and immunogenic, and does not impair the immune response to any of the coadministered antigens.

[Indexed for MEDLINE]

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