11-valent pneumococcal vaccine comes knocking

Safety of the 11-valent pneumococcal vaccine conjugated to non-typeable Haemophilus influenzae-derived protein D in the first 2 years of life and immunogenicity of the co-administered hexavalent diphtheria, tetanus, acellular pertussis, hepatitis B, inactivated polio virus, Haemophilus influenzae type b and control hepatitis A vaccines.

Prymula R, Chlibek R, Splino M, Kaliskova E, Kohl I, Lommel P, Schuerman L

Department of Epidemiology, Faculty of Military Health Sciences, University of Defence, Hradec Kralove, Czech Republic.

This randomized (1:1), double-blind, multicenter study, included 4968 healthy infants to receive either the 11-valent pneumococcal protein D (PD)-conjugate study vaccine or the hepatitis A vaccine (HAV) (control) at 3, 4, 5, and 12-15 months of age. The three-dose primary course of both vaccines was co-administered with combined hexavalent DTPa-HBV-IPV/Hib vaccine. The pneumococcal PD-conjugate study vaccine did not impact the immune response of co-administered hexavalent vaccine and the control HAV vaccine induced seropositivity (antibodies >/=15mIU/mL) in all infants. The incidence of solicited symptoms was higher with the 11-valent pneumococcal PD-conjugate study vaccine, yet similar to that induced by concomitant DTPa-HBV-IPV/Hib vaccine. Overall, the reactogenicity and safety profile of the 11-valent pneumococcal PD-conjugate vaccine when co-administered with the hexavalent DTPa-HBV-IPV/Hib vaccine, as well as the immunogenicity of the co-administered hexavalent vaccine, were consistent with previous reports for the licensed DTPa-HBV-IPV/Hib and pneumococcal conjugate vaccines.

Vaccine
Volume 26, Issue 35, 18 August 2008, Pages 4563-4570

True safety..time will tell. There doesn’t appear to be a true placebo. They compared one group given  the trial vaccine and the other group given Hep A. And then, ‘both vaccines was co-administered with combined hexavalent DTPa-HBV-IPV/Hib vaccine.’

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