Vaccination course in primed children and age-matched unprimed children with pneumococcal vaccine GSK1024850A
Trial overview
Antibody Geometric Mean Concentrations (GMCs) against the vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F in the Unprimed Group
Timeframe: Pre-vaccination (PRE/ Day 0)
Antibody Geometric Mean Concentrations (GMCs) against the vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F in the Unprimed Group
Timeframe: One week after dose 1 (Day 7)
Antibody Geometric Mean Concentrations (GMCs) against the vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F in the Unprimed Group
Timeframe: One month after dose 2 (Month 3)
Antibody geometric mean concentrations (GMCs) against the vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F in the Synflorix Group 1 and Synflorix Group 2
Timeframe: 1 month after booster dose (Month 10) – in primary study (105539)
Antibody Geometric Mean Concentrations (GMCs) against the vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F in the Synflorix Group 1 and Synflorix Group 2
Timeframe: Pre-additional dose at Month 34 in the current study (Month 34)
Antibody Geometric Mean Concentrations (GMCs) against the vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F in the Synflorix Group 1 and Synflorix Group 2
Timeframe: One week after vaccination at Month 34+7 days (Mth34+D7)
Number of subjects with anti-pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F antibody concentrations ≥ the cut-off in the Synflorix™ Group 1 and Synflorix™ Group 2
Timeframe: 1 month after booster dose (Month 10) – in primary study (105539), pre-additional dose at Month 34 in the current study (Month 34) and one week after vaccination at Month 34+7 days (Mth34+ D7);
Number of subjects with Anti-pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F antibody concentrations ≥ the cut-off in the Unprimed Group;
Timeframe: Pre-vaccination (PRE/ Day 0), one week after dose 1 (Day 7) and one month after dose 2 (Month 3);
Number of subjects with anti-pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F antibody concentrations ≥ the cut-off in the Synflorix™ Group 1 and Synflorix™ Group 2
Timeframe: 1 month after booster dose (Month 10) – in primary study (105539), pre-additional dose at Month 34 in the current study (Month 34) and one week after vaccination at Month 34+7 days (Mth34+D7)
Number of subjects with anti-pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F antibody concentrations ≥ the cut-off in the Unprimed Group
Timeframe: Pre-vaccination (PRE/ Day 0), one week after dose 1 (Day 7) and one month after dose 2 (Month 3);
Titers for opsonophagocytic activity against vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F in the Synflorix™ Group 1 and Synflorix™ Group 2
Timeframe: 1 month after booster dose (Month 10) – in primary study (105539), pre-additional dose at Month 34 in the current study (Month 34) and one week after vaccination at Month 34+7 days (Mth34+D7)
Titers for opsonophagocytic activity against vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F in the Unprimed Group
Timeframe: Pre-vaccination (PRE/ Day 0), one week after dose 1 (Day 7) and one month after dose 2 (Month 3)
Antibody Geometric Mean Concentrations (GMCs) against the vaccine pneumococcal serotypes 6A and 19A in the Synflorix™ Group 1 and Synflorix™ Group 2
Timeframe: 1 month after booster dose (Month 10) – in primary study (105539), pre-additional dose at Month 34 in the current study (Month 34) and one week after vaccination at Month 34+7 days (Mth34+D7)
Antibody Geometric Mean Concentrations (GMCs) against the vaccine pneumococcal serotypes 6A and 19A in the Unprimed Group
Timeframe: Pre-vaccination (PRE/ Day 0), one week after dose 1 (Day 7) and one month after dose 2 (Month 3)
Number of subjects with anti-pneumococcal serotypes 6A and 19A antibody concentrations ≥ the cut-off in the Synflorix™ Group 1 and Synflorix™ Group 2
Timeframe: 1 month after booster dose (Month 10) – in primary study (105539), pre-additional dose at Month 34 in the current study (Month 34) and one week after vaccination at Month 34+7 days (Mth34+D7)
Number of subjects with anti-pneumococcal serotypes 6A and 19A antibody concentrations ≥ the cut-off in the Unprimed Group
Timeframe: Pre-vaccination (PRE/ Day 0), one week after dose 1 (Day 7) and one month after dose 2 (Month 3)
Number of subjects with Anti-pneumococcal serotypes 6A and 19A antibody concentrations ≥ the cut-off in the Synflorix™ Group 1 and Synflorix™ Group 2;
Timeframe: 1 month after booster dose (Month 10) – in primary study (105539), pre-additional dose at Month 34 in the current study (Month 34) and one week after vaccination at Month 34+7 days (Mth34+D7);
Number of subjects with Anti-pneumococcal serotypes 6A and 19A antibody concentrations ≥ 0.20 μg/mL in the Unprimed group
Timeframe: Pre-vaccination (PRE/ Day 0), one week after dose 1 (Day 7) and one month after dose 2 (Month 3)
Titers for opsonophagocytic activity against vaccine pneumococcal serotypes 6A and 19A in the Synflorix™ Group 1 and Synflorix™ Group 2
Timeframe: 1 month after booster dose (Month 10) – in primary study (105539), pre-additional dose at Month 34 in the current study (Month 34) and one week after vaccination at Month 34+7 days (Mth34+D7)
Titers for opsonophagocytic activity against vaccine pneumococcal serotypes 6A and 19A in the Unprimed Group
Timeframe: Pre-vaccination (PRE/ Day 0), one week after dose 1 (Day 7) and one month after dose 2 (Month 3)
Concentrations of antibodies against protein D (ANTI-PD) in the Synflorix™ Group 1 and Synflorix™ Group 2
Timeframe: 1 month after booster dose (Month 10) – in primary study (105539), pre-additional dose at Month 34 in the current study (Month 34) and one week after vaccination at Month 34+7 days (Mth34+D7)
Concentrations of antibodies against protein D (ANTI-PD) in the Unprimed Group
Timeframe: Pre-vaccination (PRE/ Day 0), one week after dose 1 (Day 7) and one month after dose 2 (Month 3)
Number of subjects with B-cells detection in the Synflorix™ Group 1 and Synflorix™ Group 2
Timeframe: Pre-additional dose at Month 34 in the current study (Month 34) and one week after vaccination at Month 34+7 days (Mth34+D7)
Number of subjects with B-cells detection in the Unprimed Group
Timeframe: Pre-vaccination (PRE/ Day 0) and one week after dose 1 (Day 7)
Number of subjects with any and Grade 3 solicited local symptoms
Timeframe: During the 4-day (Days 0-3) post-vaccination period with the Synflorix™ vaccine, following the additional dose in the Synflorix Group1 and the Synflorix Group2 and across the 2 doses in the Unprimed Group
Number/ percentage of subjects with any, Grade 3 and Related solicited general symptoms
Timeframe: During the 4-day (Days 0-3) post-vaccination period with the Synflorix™ vaccine, following the additional dose in the Synflorix Group 1 and the Synflorix Group 2 and across the 2 doses in the Unprimed Group.
Number (%) of subjects with unsolicited adverse events
Timeframe: Within the 31-day (Days 0-30) period post vaccination, with the Synflorix™ vaccine, following the additional dose in the Synflorix group1 and the Synflorix Group 2 and across the 2 doses in the Unprimed Group
Number (%) of subjects with serious adverse events
Timeframe: During the 31-day period following vaccination period
- Male or female between, and including, +- 36-46 months of age at the time of vaccination.
- For primed subjects: having completed the full vaccination course with GSK1024850A in the primary study (NCT00307034).
- Use of any investigational or non-registered product (drug or vaccine) other than the study vaccines within 30 days preceding the first dose of the study vaccines, or planned use during the study period.
- Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within 6 months prior to vaccination.
- For primed subjects: having completed the full vaccination course with GSK1024850A in the primary study (NCT00307034).
- Subjects for whom the investigator believes that their parent(s)/guardian(s) can and will comply with the requirements of the protocol.
- Written informed consent obtained from the parent(s)/guardian(s) of the subject.
- Free of obvious health problems as established by medical history and clinical examination before entering into the study
Male or female between, and including, +- 36-46 months of age at the time of vaccination.
- Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within 6 months prior to vaccination.
- For primed subjects: administration of any pneumococcal vaccine since the end of the primary study (NCT00307034).
- For unprimed subjects: previous vaccination with any pneumococcal vaccine.
- Administration of immunoglobulins and/or any blood products less than 6 months prior to the vaccination or planned administration during the study period.
- Any confirmed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination.
- History of reactions or allergic disease likely to be exacerbated by any component of the study vaccine.
- Acute disease at the time of enrolment.
Use of any investigational or non-registered product (drug or vaccine) other than the study vaccines within 30 days preceding the first dose of the study vaccines, or planned use during the study period.
Trial location(s)
Study documents
If you wish to request for full study report, please contact - [email protected]
Results overview
Results posted on ClinicalTrials.gov
Plain language summaries
Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.