Conditions: Infections, Streptococcal
Keywords: Streptococcus Pneumoniae Vaccines Meningococcal disease Carriage Prophylactic antipyretic Safety Pneumococcal vaccine Fever Pneumococcal disease Immunogenicity Meningococcal vaccine Booster vaccination
Allocation: NON_RANDOMIZED | Intervention model: PARALLEL
Enrollment: 750
Healthy volunteers: yes

Brief summary:
The purpose of this trial is to assess if the rate of febrile reactions following the co-administration of a booster dose of pneumococcal conjugate vaccines with standard infant vaccines is lowered when paracetamol is given prophylactically and to assess the impact of pneumococcal conjugate vaccine on pneumococcal and H. influenzae nasopharyngeal carriage compared to control group receiving meningococcal conjugate vaccine (GSK134612).

This protocol posting deals with objectives \& outcome measures of the booster phase. The objectives \& outcome measures of the primary phase are presented in a separate protocol posting (NCT number = NCT00370318).

Detailed description:
The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

Arms:
arm 1: Subjects were vaccinated with 3 primary vaccination doses of Synflorix™ vaccine with prophylactic administration of paracetamol in study 10PN-PD-DIT-010 (107017), and received in this study at 12-15 months of age a booster dose of Synforix™ vaccine, co-administered with Infanrix™ hexa along with prophylactic antipyretic treatment. arm 2: Subjects were vaccinated with 3 primary vaccination doses of Synforix™ vaccine without prophylactic administration of paracetamol in study 10PN-PD-DIT-010 (107017), and received in this study at 12-15 months of age a booster dose of Synforix™ vaccine, co-administered with Infanrix™ hexa without prophylactic antipyretic treatment arm 3: Subjects were vaccinated with 3 primary vaccination doses of Synforix™ vaccine without prophylactic administration of paracetamol in study 10PN-PD-DIT-010 (107017), and received in this study (before the implementation of the protocol amendment) at 12-15 months of age a booster dose of Synforix™ vaccine, co-administered with Infanrix™ hexa without prophylactic antipyretic treatment. arm 4: Subjects were vaccinated with 3 primary vaccination doses of Synforix™ vaccine without prophylactic administration of paracetamol in study 10PN-PD-DIT-010 (107017), and received in this study (after the implementation of the protocol amendment) at 12-15 months of age a booster dose of Synforix™ vaccine, co-administered with Infanrix™ hexa without prophylactic antipyretic treatment. arm 5: Age-matched pneumococcal vaccine unprimed group receiving a single dose of Mencevax™ vaccine co-administered with Infanrix™ hexa vaccine.

Interventions: intervention 1: Pneumococcal conjugate vaccine GSK1024850A. intervention 2: Infanrix hexa. intervention 3: Meningococcal vaccine GSK134612. intervention 4: Paracetamol.
Intervention descriptions: intervention 1: 1 intramuscular injection. intervention 2: 1 intramuscular injection. intervention 3: 1 intramuscular injection. intervention 4: Body weight of \< 7 kg: none; Body weight of ≥ 7 kg to \< 9 kg : 3 suppositories of 125 mg to be administered at 8h intervals after vaccination. Body weight of ≥ 9 kg: 4 suppositories of 125 mg to be administered at 6h intervals after vaccination.

Protocol document: