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Study of 10-valent Pneumococcal Conjugate Vaccine (Pneumosil) Administered in a 2+1 Schedule to Healthy Infants

A Phase 3, Randomized, Observer-Blind Study to Evaluate the Safety, Tolerability, Immunogenicity of Serum Institute of India's 10-Valent Pneumococcal Conjugate Vaccine (PNEUMOSIL®) Administered in a 2+1 Schedule to Healthy Infants in The Gambia

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03896477
Enrollment
660
Registered
2019-04-01
Start date
2019-07-18
Completion date
2020-12-17
Last updated
2022-04-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pneumonia, Pneumococcal

Brief summary

The primary objectives of this study are to evaluate the immunogenicity (antibody response) and safety and tolerability of a 2-dose primary series and booster dose (2+1 schedule) of Pneumosil co-administered with routine pediatric vaccines in healthy infants in The Gambia.

Detailed description

This study will provide data necessary to evaluate the safety and immunogenicity of Pneumosil when administered in an alternative schedule to the 3 dose primary schedule (3+0) evaluated in the Phase 3 pivotal trial (VAC-056; NCT03197376) - namely in a 2 dose primary and booster (2+1) schedule - and compare immunogenicity to that of both currently licensed second-generation pneumococcal conjugate vaccines (Synflorix and Prevenar 13) administered in the same 2+1 schedule. In this prospective, single center, randomized, active-controlled, observer-blind, Phase 3 descriptive study, 660 healthy Gambian pneumococcal conjugate vaccine (PCV)-naïve infants will be randomized 1:1:1 to receive 3 doses of either Pneumosil, Synflorix or Prevenar 13 at 6 weeks, 14 weeks and 9-10 months of age. Standard Expanded Program on Immunization (EPI) vaccinations in The Gambia will be given concomitantly with all 3 doses of study vaccine. The booster vaccination window was extended up to 18 months of age due to a pause in the study due to the coronavirus disease 2019 (COVID-19) pandemic. The study schedule for participants is as follows: * Age 6 weeks: First primary vaccination dose administered * Age 14 weeks: Second primary vaccination dose administered (8 weeks after first primary dose) * Age 18 weeks: Blood sample for immunogenicity testing (4 weeks after second primary dose) * Age 9-18 months: Blood sample for immunogenicity testing and booster vaccination dose administered * Age 10-19 months: Blood sample for immunogenicity testing (4 weeks after booster dose)

Interventions

BIOLOGICALPneumosil

One single dose contains 2 μg of polysaccharide for serotypes 1, 5, 6A, 7F, 9V, 14, 19A, 19F and 23F, and 4 μg for serotype 6B formulated with aluminium phosphate as an adjuvant in an appropriate buffer

BIOLOGICALPrevenar 13

One single dose contains 2.2 µg of the following pneumococcal polysaccharides serotypes - 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 23F - and 4.4 µg of pneumococcal polysaccharide serotype 6B, all conjugated to CRM197 and absorbed onto aluminum phosphate

BIOLOGICALSynflorix

One single dose contains 1 μg of polysaccharide for serotypes 1, 5, 6B, 7F, 9V, 14, and 23F, and 3μg of serotypes 4, 18C, and 19F formulated with aluminum phosphate as an adjuvant.

Sponsors

Serum Institute of India Pvt. Ltd.
CollaboratorINDUSTRY
Medical Research Council Unit, The Gambia
CollaboratorOTHER
University College, London
CollaboratorOTHER
FHI 360
CollaboratorOTHER
PATH
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
42 Days to 56 Days
Healthy volunteers
Yes

Inclusion criteria

* Healthy infants based on medical history and clinical assessment. * Between 6 and 8 weeks (ie 42 to 56 days) old, inclusive. * Subject's parent must provide voluntary written/thumb-printed informed consent and be willing to comply with study requirements and procedures. * Subjects must have been born full-term, have a weight-to-height Z score of ≥ -2 at the time of enrollment (WHO child growth standard), and be ≥ 3.5 kg at randomization. * Subject's parents must be available for the duration of trial participation

Exclusion criteria

* Use of any investigational medicinal product prior to randomization. * Previous vaccination against or infection with S. pneumoniae. * History of anaphylactic shock or an allergic reaction to any prior vaccination. * Any fever, illness (including malaria). * Receipt of another study vaccine within 30 days of study start. * Chronic administration of an immunosuppressant or administration of immunoglobulins * History of blood disorder, primary immunodeficiency, or a sibling who has such a diagnosis or who died suddenly without apparent cause. * History of meningitis, seizures or any neurological disorder. * Exposure to human immunodeficiency virus (HIV) by history.

Design outcomes

Primary

MeasureTime frameDescription
Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-Booster4 weeks post booster doseThe IgG antibody concentration to each of the 10 serotypes contained in Pneumosil was measured by enzyme-linked immunosorbent assay (ELISA) in serum samples collected 4 weeks after the booster dose (Visit 6). The pneumococcal serotype-specific IgG ELISAs were performed using the World Health Organisation (WHO) reference assay at the WHO Pneumococcal Serology Reference Laboratory, at the Institute of Child Health, University College London, United Kingdom (UK), where the assay was validated.
Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDay 0 to Day 6 after each vaccinationSolicited local reactions included tenderness, erythema/redness and induration/swelling at the study vaccine injection site. Solicited systemic reactions included cutaneous rash, fever (based on axillary temperature), irritability, drowsiness, and decreased appetite. The severity of all solicited AEs was graded from mild (Grade 1) to potentially life threatening (Grade 4), based on protocol-defined criteria that were derived from Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (Version 2.0, November 2014).
Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)AEs were collected from first dose at age 6 weeks up to 9 months of age, and then from the date of the booster vaccination through 4 weeks post vaccination; approximately 8.5 months overall.AEs include any intercurrent illness or injury during the study, clinically significant worsening of a preexisting condition, and any solicited AE that occurred or was ongoing 6 days after study vaccine administration. A TEAE is an event that was not present prior to administration of the study vaccine, or increased in intensity after administration of the study vaccine. Unsolicited AEs were graded using the scale below: Grade 1: Mild; asymptomatic or mild symptoms; intervention not indicated. Grade 2: Moderate; minimal, local, or noninvasive intervention indicated. Grade 3: Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling. Grade 4: Life-threatening consequences; urgent intervention indicated. Grade 5: Death related to AE. Related AEs are AEs where the Investigator determined a reasonable causal relationship between the vaccine administered and the AE based on medical judgement.
Number of Participants With Serious Adverse Events (SAEs)SAEs were collected from first dose at age 6 weeks up to 4 weeks post booster vaccination, approximately 15.5 months overall.An SAE was a specific AE that: * Resulted in death. * Was life-threatening. * Required inpatient hospitalization or prolongation of an existing hospitalization. * Resulted in a persistent or significant disability or incapacity. * Resulted in a congenital anomaly or birth defect

Secondary

MeasureTime frameDescription
Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary Vaccinations4 weeks after completion of primary vaccinations (at age 18 weeks)The seroresponse rate was defined as the percentage of infants with serotype-specific IgG antibody concentrations of at least 0.35 μg/mL, which is the reference concentration for assessment of vaccine efficacy against invasive pneumococcal diseases (IPDs). The IgG concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected 4 weeks after the second primary vaccination dose.
Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary Vaccinations4 weeks after completion of primary vaccinations (at age 18 weeks)The IgG antibody concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected 4 weeks after the second primary vaccination dose.
Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary Vaccinations4 weeks after completion of primary vaccinations (at age 18 weeks)The OPA seroresponse rate was defined as the percentage of infants with an OPA titer of at least 8. Opsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA).
Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary Vaccinations4 weeks after completion of primary vaccinations (at age 18 weeks)Opsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA).
Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterPrior to the booster dose at approximately 9 to 16 months of ageThe seroresponse rate was defined as the percentage of infants with serotype-specific IgG concentrations of at least 0.35 μg/mL, which is the reference concentration for assessment of vaccine efficacy against invasive pneumococcal diseases (IPDs). The IgG concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected immediately prior to the booster vaccination dose.
Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-Booster4 weeks post booster doseThe functional activity of the antibody response to the 10 serotypes contained in Pneumosil was determined in serum samples collected 4 weeks after the booster dose in a subset of 50 participants per group. This activity was determined using the 4-fold multiplexed opsonophagocytic assay (MOPA) developed at the University of Alabama at Birmingham, and performed at the WHO Pneumococcal Serology Reference Laboratory, at the Institute of Child Health, University College London, UK, where the assay was validated. A higher titer indicates increased antibody-mediated opsonophagocytosis.
Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterPrior to the booster dose at approximately 9 to 16 months of ageThe OPA seroresponse rate was defined as the percentage of infants with an OPA titer of at least 8. Opsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA) from serum samples collected immediately prior to the booster vaccination dose.
Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterPrior to the booster dose at approximately 9 to 16 months of ageOpsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA) from serum samples collected immediately prior to the booster vaccination dose.
Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary Vaccinations4 weeks after completion of primary vaccinations (at age 18 weeks) and 4 weeks post boosterBooster response was measured by the ratio of IgG GMCs measured at the post-booster visit to those measured 4 weeks after completion of primary vaccinations.
Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary Vaccinations4 weeks after completion of primary vaccinations (at age 18 weeks) and 4 weeks post boosterOPA booster response was measured by the ratio of OPA GMTs measured at the post-booster visit to those measured 4 weeks after completion of primary vaccinations.
Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterPrior to the booster dose at approximately 9 to 16 months of ageThe IgG antibody concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected immediately prior to the booster vaccination dose.
Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-Booster4 weeks post booster doseThe seroresponse rate was defined as the percentage of infants with serotype-specific IgG antibody concentrations of at least 0.35 μg/mL, which is the reference concentration for assessment of vaccine efficacy against invasive pneumococcal diseases (IPDs). The IgG concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected 4 weeks after the booster dose.
Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-Booster4 weeks post booster doseSeroresponse rate was also defined as the percentage of infants with serotype-specific IgG antibody concentrations of at least 1.0 μg/mL. The IgG concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected 4 weeks after the booster dose.
Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-Booster4 weeks post booster doseThe OPA seroresponse rate was defined as the percentage of infants with an OPA titer of at least 8. Opsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA) from serum samples taken 4 weeks after the booster vaccination.

Countries

The Gambia

Participant flow

Recruitment details

Healthy, Gambian male and female, pneumococcal conjugate vaccine (PCV)-naïve infants were screened and enrolled at the Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine (MRCG at LSHTM).

Pre-assignment details

Eligible participants were randomized equally (in a 1:1:1 ratio), based on a pre-established randomization scheme, to receive either Pneumosil, Synflorix or Prevenar 13. Participants were to receive two primary vaccinations plus a booster vaccination at 9-10 months of age. The booster vaccination window was extended up to 18 months of age due to a pause in the study due to the COVID-19 pandemic; actual mean age of booster administration was 12.5 months and ranged from 9 to 16 months.

Participants by arm

ArmCount
Pneumosil
Infants received two primary vaccinations with Pneumosil, the first at age 6 weeks and the second at age 14 weeks. A booster vaccination was given between 9 and 16 months of age.
220
Synflorix
Infants received two primary vaccinations with Synflorix, the first at age 6 weeks and the second at age 14 weeks. A booster vaccination was given between 9 and 16 months of age.
220
Prevenar 13
Infants received two primary vaccinations with Prevenar 13, the first at age 6 weeks and the second at age 14 weeks. A booster vaccination was given between 9 and 16 months of age.
220
Total660

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event001
Overall StudyDeath100
Overall StudyLost to Follow-up211
Overall StudyMet Ineligibility Criteria During the Study112
Overall StudyOther567
Overall StudyParent Requested Withdrawal8129

Baseline characteristics

CharacteristicTotalPneumosilSynflorixPrevenar 13
Age, Continuous46.9 days
STANDARD_DEVIATION 3.86
47.3 days
STANDARD_DEVIATION 3.86
46.8 days
STANDARD_DEVIATION 3.96
46.7 days
STANDARD_DEVIATION 3.74
Ethnicity
Fula
76 Participants26 Participants25 Participants25 Participants
Ethnicity
Jola
74 Participants28 Participants31 Participants15 Participants
Ethnicity
Mandinka
351 Participants109 Participants118 Participants124 Participants
Ethnicity
Manjago
10 Participants5 Participants1 Participants4 Participants
Ethnicity
Other
37 Participants13 Participants11 Participants13 Participants
Ethnicity
Serahule
27 Participants9 Participants9 Participants9 Participants
Ethnicity
Serere
25 Participants9 Participants8 Participants8 Participants
Ethnicity
Wolof
60 Participants21 Participants17 Participants22 Participants
Length55.40 cm
STANDARD_DEVIATION 2.02
55.44 cm
STANDARD_DEVIATION 1.91
55.48 cm
STANDARD_DEVIATION 2.02
55.29 cm
STANDARD_DEVIATION 2.11
Primary Cooking Fuel Source
Gas/electricity
4 Participants2 Participants1 Participants1 Participants
Primary Cooking Fuel Source
Wood/charcoal
656 Participants218 Participants219 Participants219 Participants
Primary Water Source for Cooking/Drinking
Community tap, well or borehole
134 Participants52 Participants40 Participants42 Participants
Primary Water Source for Cooking/Drinking
Private tap, well or borehole
526 Participants168 Participants180 Participants178 Participants
Race/Ethnicity, Customized
African
660 Participants220 Participants220 Participants220 Participants
Sex: Female, Male
Female
342 Participants125 Participants108 Participants109 Participants
Sex: Female, Male
Male
318 Participants95 Participants112 Participants111 Participants
Weight4.66 kg
STANDARD_DEVIATION 0.59
4.64 kg
STANDARD_DEVIATION 0.55
4.68 kg
STANDARD_DEVIATION 0.58
4.67 kg
STANDARD_DEVIATION 0.65

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
1 / 2200 / 2201 / 220
other
Total, other adverse events
212 / 220213 / 220211 / 220
serious
Total, serious adverse events
12 / 22010 / 2207 / 220

Outcome results

Primary

Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-Booster

The IgG antibody concentration to each of the 10 serotypes contained in Pneumosil was measured by enzyme-linked immunosorbent assay (ELISA) in serum samples collected 4 weeks after the booster dose (Visit 6). The pneumococcal serotype-specific IgG ELISAs were performed using the World Health Organisation (WHO) reference assay at the WHO Pneumococcal Serology Reference Laboratory, at the Institute of Child Health, University College London, United Kingdom (UK), where the assay was validated.

Time frame: 4 weeks post booster dose

Population: Primary Per Protocol Immunogenicity Population (PP\_IMM) includes all randomized participants who received all 3 study vaccinations (including booster), contributed post-booster immunogenicity measurements, and with no major protocol deviations that were determined to potentially interfere with immunogenicity assessment. Participants with available data for each serotype are included in the analysis.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 18.45 μg/mL
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 51.54 μg/mL
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 6A9.56 μg/mL
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 6B12.46 μg/mL
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 7F6.66 μg/mL
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 9V3.46 μg/mL
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 148.28 μg/mL
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 19A8.82 μg/mL
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 19F11.11 μg/mL
PneumosilGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 23F4.95 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 19F17.31 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 12.90 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 9V2.45 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 7F3.15 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 50.80 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 23F2.16 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 19A2.39 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 6A0.60 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 145.02 μg/mL
SynflorixGeometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 6B4.96 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 19A12.21 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 6B15.54 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 7F6.31 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 9V3.87 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 19F14.99 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 149.17 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 15.87 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 23F4.97 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 52.04 μg/mL
Prevenar 13Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) Antibodies Four Weeks Post-BoosterSerotype 6A10.95 μg/mL
Comparison: Serotype 1 geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [2.47, 3.44]
Comparison: Serotype 1 geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [1.23, 1.69]
Comparison: Serotype 5 geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [1.66, 2.25]
Comparison: Serotype 5 geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.65, 0.88]
Comparison: Serotype 6A geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [12.84, 20.03]
Comparison: Serotype 6A geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.72, 1.06]
Comparison: Serotype 6B geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [2.14, 2.95]
Comparison: Serotype 6B geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.68, 0.95]
Comparison: Serotype 7F geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [1.83, 2.44]
Comparison: Serotype 7F geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.91, 1.22]
Comparison: Serotype 9V geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [1.21, 1.65]
Comparison: Serotype 9V geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.76, 1.05]
Comparison: Serotype 14 geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [1.29, 2.1]
Comparison: Serotype 14 geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.73, 1.12]
Comparison: Serotype 19A geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [2.91, 4.67]
Comparison: Serotype 19A geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.6, 0.87]
Comparison: Serotype 19F geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.52, 0.79]
Comparison: Serotype 19F geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.62, 0.89]
Comparison: Serotype 23F geometric mean concentration ratio (Pneumosil / Synflorix) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [1.89, 2.76]
Comparison: Serotype 23F geometric mean concentration ratio (Pneumosil / Prevenar 13) and 95% confidence interval (CI). Differences between groups were considered statistically significant if the 95% CI excludes 1.95% CI: [0.82, 1.22]
Primary

Number of Participants With Serious Adverse Events (SAEs)

An SAE was a specific AE that: * Resulted in death. * Was life-threatening. * Required inpatient hospitalization or prolongation of an existing hospitalization. * Resulted in a persistent or significant disability or incapacity. * Resulted in a congenital anomaly or birth defect

Time frame: SAEs were collected from first dose at age 6 weeks up to 4 weeks post booster vaccination, approximately 15.5 months overall.

Population: Safety analysis set

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PneumosilNumber of Participants With Serious Adverse Events (SAEs)Any serious adverse event12 Participants
PneumosilNumber of Participants With Serious Adverse Events (SAEs)Vaccine-related serious adverse events0 Participants
SynflorixNumber of Participants With Serious Adverse Events (SAEs)Any serious adverse event10 Participants
SynflorixNumber of Participants With Serious Adverse Events (SAEs)Vaccine-related serious adverse events0 Participants
Prevenar 13Number of Participants With Serious Adverse Events (SAEs)Any serious adverse event7 Participants
Prevenar 13Number of Participants With Serious Adverse Events (SAEs)Vaccine-related serious adverse events0 Participants
Primary

Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any Vaccination

Solicited local reactions included tenderness, erythema/redness and induration/swelling at the study vaccine injection site. Solicited systemic reactions included cutaneous rash, fever (based on axillary temperature), irritability, drowsiness, and decreased appetite. The severity of all solicited AEs was graded from mild (Grade 1) to potentially life threatening (Grade 4), based on protocol-defined criteria that were derived from Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (Version 2.0, November 2014).

Time frame: Day 0 to Day 6 after each vaccination

Population: The Safety Analysis Set (Safety Population) included all participants who were randomized, received a study vaccination, and provided post-vaccination safety data.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny local reaction72 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny local reaction Grade 3 or higher0 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationTenderness70 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationErythema/Redness1 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationInduration/Swelling3 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny systemic reaction160 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny systemic reaction Grade 3 or higher3 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationFever Grade 3 or higher3 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationCutaneous Rash16 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationCutaneous Rash Grade 3 or higher0 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationIrritability105 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationIrritability Grade 3 or higher0 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDrowsiness12 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDrowsiness Grade 3 or higher0 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDecreased Appetite25 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDecreased Appetite Grade 3 or higher0 Participants
PneumosilNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationFever98 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationFever105 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDecreased Appetite18 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationFever Grade 3 or higher0 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationCutaneous Rash7 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationCutaneous Rash Grade 3 or higher0 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDecreased Appetite Grade 3 or higher0 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationIrritability110 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationIrritability Grade 3 or higher0 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny local reaction84 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDrowsiness15 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny local reaction Grade 3 or higher0 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationTenderness83 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny systemic reaction167 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationErythema/Redness3 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDrowsiness Grade 3 or higher0 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationInduration/Swelling5 Participants
SynflorixNumber of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny systemic reaction Grade 3 or higher0 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationErythema/Redness1 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationFever108 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationTenderness61 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny local reaction63 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationFever Grade 3 or higher2 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDecreased Appetite28 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny systemic reaction160 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationCutaneous Rash6 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny systemic reaction Grade 3 or higher2 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationInduration/Swelling1 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationCutaneous Rash Grade 3 or higher0 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationAny local reaction Grade 3 or higher0 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDrowsiness18 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationIrritability101 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDecreased Appetite Grade 3 or higher0 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationDrowsiness Grade 3 or higher0 Participants
Prevenar 13Number of Participants With Solicited Local and Systemic Adverse Events (AEs) Through Day 6 Following Any VaccinationIrritability Grade 3 or higher0 Participants
Primary

Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)

AEs include any intercurrent illness or injury during the study, clinically significant worsening of a preexisting condition, and any solicited AE that occurred or was ongoing 6 days after study vaccine administration. A TEAE is an event that was not present prior to administration of the study vaccine, or increased in intensity after administration of the study vaccine. Unsolicited AEs were graded using the scale below: Grade 1: Mild; asymptomatic or mild symptoms; intervention not indicated. Grade 2: Moderate; minimal, local, or noninvasive intervention indicated. Grade 3: Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling. Grade 4: Life-threatening consequences; urgent intervention indicated. Grade 5: Death related to AE. Related AEs are AEs where the Investigator determined a reasonable causal relationship between the vaccine administered and the AE based on medical judgement.

Time frame: AEs were collected from first dose at age 6 weeks up to 9 months of age, and then from the date of the booster vaccination through 4 weeks post vaccination; approximately 8.5 months overall.

Population: Safety analysis set

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Any treatment-emergent adverse event (TEAE)198 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Any vaccine-related TEAE1 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 1 TEAE196 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine-related Grade 1 TEAE1 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 2 TEAE22 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine-related Grade 2 TEAE0 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE11 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine-related Grade 3 TEAE0 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE0 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE1 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine related Grade 5 TEAE0 Participants
PneumosilNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)TEAEs leading to study discontinuation0 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)TEAEs leading to study discontinuation0 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Any treatment-emergent adverse event (TEAE)197 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE10 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE0 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Any vaccine-related TEAE2 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine-related Grade 2 TEAE0 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine related Grade 5 TEAE0 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 1 TEAE195 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine-related Grade 3 TEAE1 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 2 TEAE20 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine-related Grade 1 TEAE1 Participants
SynflorixNumber of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE0 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine-related Grade 1 TEAE0 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 2 TEAE17 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 5 TEAE1 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine-related Grade 2 TEAE0 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 3 TEAE6 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine-related Grade 3 TEAE0 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Vaccine related Grade 5 TEAE0 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Any treatment-emergent adverse event (TEAE)189 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Any vaccine-related TEAE0 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 4 TEAE0 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)Grade 1 TEAE186 Participants
Prevenar 13Number of Participants With Unsolicited Treatment-emergent Adverse Events (TEAEs)TEAEs leading to study discontinuation1 Participants
Secondary

Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary Vaccinations

The IgG antibody concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected 4 weeks after the second primary vaccination dose.

Time frame: 4 weeks after completion of primary vaccinations (at age 18 weeks)

Population: Primary Per Protocol Immunogenicity Population with available serotype data

ArmMeasureGroupValue (GEOMETRIC_MEAN)
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 13.63 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 51.19 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 6A1.19 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 6B1.82 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 7F3.46 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 9V1.93 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 144.03 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 19A1.75 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 19F5.45 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 23F2.21 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 19F8.86 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 11.36 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 9V1.31 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 7F1.73 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 50.87 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 23F0.57 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 19A0.65 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 6A0.14 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 142.58 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 6B0.91 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 19A4.38 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 6B1.75 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 7F4.67 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 9V2.56 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 19F9.06 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 143.27 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 13.40 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 23F1.64 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 51.81 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific IgG Antibodies Four Weeks After Completion of Primary VaccinationsSerotype 6A2.62 μg/mL
Secondary

Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to Booster

The IgG antibody concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected immediately prior to the booster vaccination dose.

Time frame: Prior to the booster dose at approximately 9 to 16 months of age

Population: Primary Per Protocol Immunogenicity population with available serotype data

ArmMeasureGroupValue (GEOMETRIC_MEAN)
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 10.36 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 50.17 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 6A0.62 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 6B0.97 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 7F0.60 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 9V0.25 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 140.71 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 19A0.49 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 19F0.83 μg/mL
PneumosilGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 23F0.32 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 19F1.25 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 10.16 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 9V0.29 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 7F0.43 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 50.16 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 23F0.16 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 19A0.40 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 6A0.22 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 140.48 μg/mL
SynflorixGeometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 6B0.56 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 19A0.53 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 6B0.45 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 7F0.72 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 9V0.28 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 19F0.72 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 141.16 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 10.37 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 23F0.17 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 50.24 μg/mL
Prevenar 13Geometric Mean Concentration of Serotype-specific Serum IgG Antibodies Prior to BoosterSerotype 6A0.50 μg/mL
Secondary

Geometric Mean Titer of Serotype-specific Serum OPA Prior to Booster

Opsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA) from serum samples collected immediately prior to the booster vaccination dose.

Time frame: Prior to the booster dose at approximately 9 to 16 months of age

Population: Primary Per Protocol Immunogenicity population with available serotype data; OPA assays were conducted on the first 50 samples from each treatment group.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 19A13.43 titer
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 7F1756.80 titer
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 23F65.62 titer
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 1460.53 titer
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 9V27.60 titer
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 6A42.59 titer
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 512.53 titer
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 19F24.09 titer
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 6B121.60 titer
PneumosilGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 15.57 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 9V27.95 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 512.01 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 6A6.41 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 6B40.08 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 7F1725.63 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 15.19 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 1417.67 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 19A12.88 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 19F57.66 titer
SynflorixGeometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 23F41.99 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 6B32.27 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 15.45 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 19A28.20 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 6A40.66 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 23F81.42 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 19F12.27 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 9V48.64 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 7F1688.30 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 516.03 titer
Prevenar 13Geometric Mean Titer of Serotype-specific Serum OPA Prior to BoosterSerotype 1462.77 titer
Secondary

Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-Booster

The functional activity of the antibody response to the 10 serotypes contained in Pneumosil was determined in serum samples collected 4 weeks after the booster dose in a subset of 50 participants per group. This activity was determined using the 4-fold multiplexed opsonophagocytic assay (MOPA) developed at the University of Alabama at Birmingham, and performed at the WHO Pneumococcal Serology Reference Laboratory, at the Institute of Child Health, University College London, UK, where the assay was validated. A higher titer indicates increased antibody-mediated opsonophagocytosis.

Time frame: 4 weeks post booster dose

Population: Primary Per Protocol Immunogenicity population with available serotype data; OPA assays were conducted on the first 50 samples from each treatment group.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 1631.29 titer
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 5885.98 titer
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 6A3651.54 titer
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 6B3931.21 titer
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 7F7053.37 titer
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 9V1408.68 titer
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 142622.36 titer
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 19A1620.76 titer
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 19F1384.38 titer
PneumosilGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 23F2998.53 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 19F2541.40 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 1282.35 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 9V845.47 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 7F4401.18 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 5484.66 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 23F1427.66 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 19A305.46 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 6A53.86 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 141381.52 titer
SynflorixGeometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 6B1294.61 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 19A3679.06 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 6B6012.88 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 7F8288.88 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 9V2464.43 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 19F2094.57 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 143131.96 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 1429.13 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 23F5687.60 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 5703.15 titer
Prevenar 13Geometric Mean Titers (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) Four Weeks Post-BoosterSerotype 6A6464.88 titer
Secondary

Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary Vaccinations

Opsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA).

Time frame: 4 weeks after completion of primary vaccinations (at age 18 weeks)

Population: Primary Per Protocol Immunogenicity population with available serotype data; OPA assays were conducted on the first 50 samples from each treatment group.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 19A69.15 titer
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 5182.18 titer
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 6A400.49 titer
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 6B923.86 titer
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 7F2069.84 titer
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 9V134.50 titer
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 14669.79 titer
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 19F381.46 titer
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 23F806.12 titer
PneumosilGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 199.67 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 6B166.74 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 19F690.36 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 7F1096.84 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 9V58.24 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 14577.98 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 126.70 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 19A22.40 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 585.09 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 6A5.35 titer
SynflorixGeometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 23F180.97 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 14489.56 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 6B920.43 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 5291.98 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 198.63 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 7F3069.95 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 19F647.79 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 19A324.64 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 9V331.79 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 23F748.96 titer
Prevenar 13Geometric Mean Titers of Serotype-specific Serum OPA Four Weeks After Primary VaccinationsSerotype 6A1524.31 titer
Secondary

Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary Vaccinations

The seroresponse rate was defined as the percentage of infants with serotype-specific IgG antibody concentrations of at least 0.35 μg/mL, which is the reference concentration for assessment of vaccine efficacy against invasive pneumococcal diseases (IPDs). The IgG concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected 4 weeks after the second primary vaccination dose.

Time frame: 4 weeks after completion of primary vaccinations (at age 18 weeks)

Population: Primary Per Protocol Immunogenicity population with available serotype data

ArmMeasureGroupValue (NUMBER)
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 199.5 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 596.8 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 6A83.3 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 6B84.7 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 7F99.5 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSeroytpe 9V94.9 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 1498.6 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 19A97.7 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 19F100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 23F95.8 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 19F99.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 196.2 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSeroytpe 9V91.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 7F97.2 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 592.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 23F63.2 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 19A75.2 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 6A12.8 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 1495.3 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 6B71.2 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 19A97.6 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 6B89.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 7F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSeroytpe 9V98.1 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 19F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 1497.2 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 1100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 23F89.6 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 596.2 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks After Completion of Primary VaccinationsSerotype 6A91.5 percentage of participants
Secondary

Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-Booster

The seroresponse rate was defined as the percentage of infants with serotype-specific IgG antibody concentrations of at least 0.35 μg/mL, which is the reference concentration for assessment of vaccine efficacy against invasive pneumococcal diseases (IPDs). The IgG concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected 4 weeks after the booster dose.

Time frame: 4 weeks post booster dose

Population: Primary Per Protocol Immunogenicity population with available serotype data

ArmMeasureGroupValue (NUMBER)
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 1100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 597.5 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 6A98.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 6B100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 7F100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 9V99.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 1498.5 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 19A100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 19F100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 23F98.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 7F99.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 1100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 9V99.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 23F98.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 589.9 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 19F100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 19A91.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 6A66.2 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 1497.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 6B99.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 23F98.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 6B99.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 7F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 19F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 9V100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 1499.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 199.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 599.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 19A100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 0.35 μg/mL Four Weeks Post-BoosterSerotype 6A99.0 percentage of participants
Secondary

Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-Booster

Seroresponse rate was also defined as the percentage of infants with serotype-specific IgG antibody concentrations of at least 1.0 μg/mL. The IgG concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected 4 weeks after the booster dose.

Time frame: 4 weeks post booster dose

Population: Primary Per Protocol Immunogenicity population with available data

ArmMeasureGroupValue (NUMBER)
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 19A96.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 6B100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 19F98.5 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 23F94.6 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 568.6 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 198.5 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 7F98.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 9V94.6 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 1495.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 6A96.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 19A77.4 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 7F95.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 537.7 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 19F96.9 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 6B96.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 1490.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 23F83.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 9V89.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 6A37.9 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 188.3 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 6A98.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 197.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 587.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 6B99.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 7F99.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 9V95.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 1499.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 19A99.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 19F99.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Antibody Concentrations ≥ 1.0 μg/mL Four Weeks Post-BoosterSerotype 23F96.0 percentage of participants
Secondary

Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to Booster

The seroresponse rate was defined as the percentage of infants with serotype-specific IgG concentrations of at least 0.35 μg/mL, which is the reference concentration for assessment of vaccine efficacy against invasive pneumococcal diseases (IPDs). The IgG concentration to each of the 10 serotypes contained in Pneumosil was measured by ELISA in serum samples collected immediately prior to the booster vaccination dose.

Time frame: Prior to the booster dose at approximately 9 to 16 months of age

Population: Primary Per Protocol Immunogenicity population with available serotype data

ArmMeasureGroupValue (NUMBER)
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 7F74.5 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 19A58.1 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 150.2 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 9V35.1 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 1469.6 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 23F46.2 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 6A76.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 513.7 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 19F84.1 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 6B89.9 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 1459.3 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 117.2 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 516.4 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 6A32.7 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 6B74.6 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 19A54.9 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 19F95.1 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 23F19.4 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 7F65.4 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 9V36.1 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 6A70.4 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 153.4 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 19F80.6 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 533.8 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 9V37.7 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 7F84.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 1486.3 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 6B60.7 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 23F24.9 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum IgG Concentrations ≥ 0.35 μg/mL Prior to BoosterSerotype 19A65.7 percentage of participants
Secondary

Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary Vaccinations

The OPA seroresponse rate was defined as the percentage of infants with an OPA titer of at least 8. Opsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA).

Time frame: 4 weeks after completion of primary vaccinations (at age 18 weeks)

Population: Primary Per Protocol Immunogenicity population with available serotype data; OPA assays were conducted on the first 50 samples from each treatment group.

ArmMeasureGroupValue (NUMBER)
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 9V100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 598.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 6A92.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 6B96.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 7F100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 1494.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 19A91.8 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 19F96.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 23F100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 198.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 1497.9 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 173.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 9V100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 7F100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 596.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 23F100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 19F95.9 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 6A10.2 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 19A56.5 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 6B69.4 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 19F98.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 6B92.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 7F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 9V100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 1490.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 23F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 19A96.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 196.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 5100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks After Completion of Primary VaccinationsSerotype 6A98.0 percentage of participants
Secondary

Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-Booster

The OPA seroresponse rate was defined as the percentage of infants with an OPA titer of at least 8. Opsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA) from serum samples taken 4 weeks after the booster vaccination.

Time frame: 4 weeks post booster dose

Population: Primary Per Protocol Immunogenicity population with available serotype data; OPA assays were conducted on the first 50 samples from each treatment group.

ArmMeasureGroupValue (NUMBER)
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 1100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 5100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 6A100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 6B100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 7F100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 9V100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 14100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 19A100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 19F98.0 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 23F100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 19F98.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 196.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 9V100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 7F100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 5100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 23F100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 19A90.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 6A55.6 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 1496.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 6B98.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 19A100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 6B98.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 7F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 9V100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 19F98.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 14100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 198.0 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 23F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 5100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Four Weeks Post-BoosterSerotype 6A100 percentage of participants
Secondary

Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to Booster

The OPA seroresponse rate was defined as the percentage of infants with an OPA titer of at least 8. Opsonophagocytic activity was measured using the 4-fold multiplexed opsonophagocytic assay (MOPA) from serum samples collected immediately prior to the booster vaccination dose.

Time frame: Prior to the booster dose at approximately 9 to 16 months of age

Population: Primary Per Protocol Immunogenicity population with available serotype data; OPA assays were conducted on the first 50 samples from each treatment group.

ArmMeasureGroupValue (NUMBER)
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 122.4 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 558.3 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 6A76.6 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 6B87.5 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 7F100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 9V100 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 1475.5 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 19A35.4 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 19F60.4 percentage of participants
PneumosilPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 23F100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 19F79.6 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 116.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 9V100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 7F100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 549.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 23F100 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 19A40.8 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 6A14.0 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 1452.1 percentage of participants
SynflorixPercentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 6B62.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 19A63.3 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 6B54.2 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 7F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 9V100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 19F36.7 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 1472.9 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 125.5 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 23F100 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 563.3 percentage of participants
Prevenar 13Percentage of Participants With Serotype-specific Serum OPA Titers ≥ 8 Prior to BoosterSerotype 6A63.8 percentage of participants
Secondary

Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary Vaccinations

Booster response was measured by the ratio of IgG GMCs measured at the post-booster visit to those measured 4 weeks after completion of primary vaccinations.

Time frame: 4 weeks after completion of primary vaccinations (at age 18 weeks) and 4 weeks post booster

Population: Primary Per Protocol Immunogenicity population with available data for each serotype at both time points

ArmMeasureGroupValue (GEOMETRIC_MEAN)
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 19A4.98 ratio
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 6B6.71 ratio
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 19F1.98 ratio
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 23F2.24 ratio
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 51.29 ratio
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 12.31 ratio
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 7F1.91 ratio
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 6A7.86 ratio
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 9V1.76 ratio
PneumosilRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 141.98 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 19A3.69 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 7F1.84 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 141.93 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 19F1.96 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 6B5.32 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 50.90 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 23F3.67 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 9V1.86 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 6A4.30 ratio
SynflorixRatio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 12.09 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 9V1.55 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 51.15 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 6A4.14 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 6B8.92 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 7F1.36 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 11.74 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 142.80 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 19A2.69 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 19F1.68 ratio
Prevenar 13Ratio of Serotype-specific Serum IgG GMC 4 Weeks Post-Booster to Serotype-specific IgG GMC 4 Weeks After Completion of Primary VaccinationsSerotype 23F3.00 ratio
Secondary

Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary Vaccinations

OPA booster response was measured by the ratio of OPA GMTs measured at the post-booster visit to those measured 4 weeks after completion of primary vaccinations.

Time frame: 4 weeks after completion of primary vaccinations (at age 18 weeks) and 4 weeks post booster

Population: Primary Per Protocol Immunogenicity population with available data for each serotype at both time points; OPA assays were conducted on the first 50 samples from each treatment group.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 16.70 ratio
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 54.91 ratio
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 6A10.36 ratio
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 6B4.62 ratio
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 7F3.51 ratio
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 9V10.24 ratio
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 144.27 ratio
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 19A23.79 ratio
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 19F3.74 ratio
PneumosilRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 23F3.81 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 9V14.90 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 19.35 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 7F4.03 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 23F8.71 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 55.36 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 19F3.30 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 19A12.25 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 6A10.12 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 142.25 ratio
SynflorixRatio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 6B7.70 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 19A11.63 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 6B6.54 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 23F7.41 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 7F2.71 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 9V7.64 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 19F3.55 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 145.73 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 14.45 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 52.46 ratio
Prevenar 13Ratio of Serotype-specific Serum OPA GMT 4 Weeks Post-Booster to Serotype-specific OPA GMT 4 Weeks After Completion of Primary VaccinationsSerotype 6A3.89 ratio

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026