Safety & Immunogenicity Study of 10-Valent Pneumococcal Conjugate Vaccine When Administered as a 2-Dose Schedule

An Open, Randomized, Phase IIIa Study to Evaluate the Safety and Immunogenicity of GSK Biologicals' 10-valent Pneumococcal Conjugate Vaccine, When Administered Intramuscularly According to a 2-4-11 Months Vaccination Schedule

Assess immuno, reacto of the 10-valent pneumococcal vaccine after 2 doses (2, 4 months of age) and after the complete 2, 4, 11 months schedule when co-administered with DTPa-HBV-IPV/Hib or DTPa-IPV/Hib (according to national recommendations)

Total anticipated: 300 subjects (150/group). 2-dose group - 10-valent pneumococcal vaccine + DTPa combined vaccine (2, 4, 11 months); Comparator group - 10-valent pneumococcal vaccine (2, 3, 4, 11 months) + DTPa combined vaccine (2, 4, 11 months). The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

Inclusion criteria:

• Subjects for whom the investigator believes that their parents/guardians can and will comply with the requirements of the protocol.
• A male or female between, and including, 8 and 16 weeks (56-120 days) of age at the time of the first vaccination.
• Written informed consent obtained from the parent or guardian of the subject.
• Free of obvious health problems as established by medical history and clinical examination before entering into the study.
• Born after a gestation period of 36 to 42 weeks.

Exclusion criteria:

• Use of any investigational or non-registered drug or vaccine other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period.
• Planned administration/ administration of a vaccine not foreseen by the study protocol during the period starting 30 days before the first dose of vaccine(s) and ending 30 days after the last dose, with exception of BCG vaccination which can be given after the 1 month post-dose 2 or 3 (2-4-11 or 2-3-4-11 months of age schedule) blood sampling and a minimum of 30 days before the pre-booster dose blood sampling.
• Previous vaccination against diphtheria, tetanus, pertussis, polio, hepatitis B, Haemophilus influenzae type b, and/or S. pneumoniae.
• History of or intercurrent diphtheria, tetanus, pertussis, hepatitis B, polio, Haemophilus influenzae type b disease, and/or invasive pneumococcal diseases.
• History of allergic disease or reactions likely to be exacerbated by any component of the vaccines.
• History of any neurologic disorders or seizures.
• Acute disease at the time of enrolment.
• Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs since birth.
• Any confirmed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination
• A family history of congenital or hereditary immunodeficiency.
• Major congenital defects or serious chronic illness.
• Administration of immunoglobulins and/or any blood products since birth or planned administration during the study period.