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Primary Vaccination Course in Children Receiving Pneumococcal Conjugate Vaccine GSK 1024850A or Prevenar™ and Hiberix™

Primary Vaccination Course in Children Receiving the Pneumococcal Vaccine GSK 1024850A or Prevenar™ Co-administered With Hiberix™

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00680914
Enrollment
503
Registered
2008-05-20
Start date
2008-06-10
Completion date
2009-05-08
Last updated
2018-06-08

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

Conditions

Infections, Streptococcal

Keywords

Streptococcus pneumoniae, pneumococcal conjugate vaccine

Brief summary

The purposes of this study are: To demonstrate the immunogenicity in terms of antibody response following primary vaccination of Korean infants with the pneumococcal conjugate vaccine GSK 1024850A compared to Prevenar™ when co-administered with a Haemophilus influenzae type b (Hib) vaccine in children during the first 6 months of life. To evaluate the safety/reactogenicity in terms of solicited and unsolicited symptoms and serious adverse events following primary vaccination of Korean infants with the pneumococcal conjugate vaccine GSK 1024850A.

Detailed description

Vaccination course at 2, 4, 6 months of age.

Interventions

BIOLOGICALPneumococcal vaccine GSK1024850A (Synflorix)

3 doses administered intramuscularly.

BIOLOGICALPrevenar

3 doses administered intramuscularly.

3 doses administered intramuscularly.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
6 Weeks to 12 Weeks
Healthy volunteers
Yes

Inclusion criteria

* Male or female subjects between, and including 6-12 weeks of age at the time of the first vaccination. * Subjects for whom the investigator believes that their parent(s)/guardian(s) can and will comply with the requirements of the protocol should be enrolled in the study. * Written and signed informed consent obtained from the parent(s)/guardian(s) of the child/ward. * Free of any known or suspected health problems as established by medical history and clinical examination before entering into the study. * Born after a gestation period of 36 to 42 weeks inclusive, with a birth weight of at least 2.5 kilogram.

Exclusion criteria

* Use of any investigational or non-registered product (drug or vaccine) other than the study vaccines within 30 days preceding the first dose of the study vaccines, or planned use during the study period. * Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product (pharmaceutical product or device). * Chronic administration of immunosuppressants or other immune-modifying drugs since birth. * Planned administration/administration of a vaccine not allowed by the study protocol during the study period. Vaccines included in the Korean routine immunization schedule can be administered at least one week before or at least one month after the administration of the study vaccines. Recommended live vaccines not included in the Korean routine immunization schedule can be given at least one month before or at least one month after the administration of the study vaccines. * A family history of congenital or hereditary immunodeficiency. * Any confirmed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination. * Administration of immunoglobulins and/or any blood products since birth or planned administration during the study period (Hepatitis B immunoglobulins at birth are allowed). * Previous vaccination against Streptococcus pneumoniae and/or Haemophilus influenzae type b. * History of, or intercurrent Streptococcus pneumoniae and/or Haemophilus influenzae type b disease. * History of allergic disease or reactions likely to be exacerbated by any component of the vaccines. * History of any neurological disorders or seizures. * Major congenital defects or serious chronic illness. * Acute disease at the time of enrolment. Study entry should be delayed until the illness has improved.

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueOne month after administration of 3rd dose of the pneumococcal conjugate vaccineAnti-pneumococcal antibody cut-off value assessed was 0.20 microgram per milliliter (ug/mL). The vaccine pneumococcal serotypes assessed include 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F, and 23F.

Secondary

MeasureTime frameDescription
Number of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOne month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccineThe results were presented as the dilution of serum (opsonic titer) able to sustain 50% killing of live pneumococci under the assay conditions. In this assay the cut-off value for opsonophagocytic activity against pneumococcal antibody assessed was \>= 8. The vaccine pneumococcal serotypes assessed include 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F.
Number of Subjects With Cross-reactive Pneumococcal Serotype Antibody Concentrations Above the Cut-Off ValueOne month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccineAnti-pneumococcal antibody cut-off value assessed was 0.20 microgram per milliliter (ug/mL). Pneumococcal cross-reactive serotypes were 6A and 19A.
Antibody Concentrations Against Pneumococal Serotypes Contained in the VaccineOne month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccineConcentrations are reported as Geometric Mean Concentrations in ug/mL. Pneumococcal serotypes assessed include 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F, and 23F.
Anti-PD Antibody ConcentrationOne month after administration of 3rd vaccine dose of the pneumococcal conjugate vaccineConcentration of anti-PD antibody given as GMC expressed in EL.U/mL.
Antibody Concentrations Against Pneumococcal Cross-reactive SerotypesOne month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccineConcentration of cross-reactive pneumococcal serotypes 6A and 19A in ug/mL.
Number of Subjects With Opsonophagocytic Activity Against Pneumococcal Cross-reactive SerotypesOne month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccineThe results were presented as the dilution of serum (opsonic titer) able to sustain 50% killing of live pneumococci under the assay conditions. In this assay the cut-off value for opsonophagocytic activity against pneumococcal cross-reactive serotypes 6A and 19A was defined as \>= 8.
Number of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesOne month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccineSeropositivity status for protein D is defined as anti protein D (anti-PD) antibody concentrations \>= 100 Enzyme-Linked Immuno Sorbent Assay (EL) units EL.U/mL. Seropositivity status for pneumococcal serotypes is defined as anti-pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F antibody concentrations \>= 0.05 ug/mL.
Number of Subjects With Seroprotection Status Against PRPOne month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccineSeroprotection status is defined as anti-PRP antibody concentrations above 0.15 ug/mL and above 1.0 ug/mL
Number of Subjects Reporting Solicited Local SymptomsWithin 4 days after each vaccinationSolicited local symptoms assessed include pain, redness and swelling.
Number of Subjects With Solicited General SymptomsWithin 4 days after each vaccinationSolicited general symptoms assessed include drowsiness, fever, irritability and loss of appetite. Fever was defined as axillary temperature \>= 37.5 degrees Celsius.
Number of Subjects Reporting Unsolicited Adverse EventsWithin 31 days after each vaccination
Number of Subjects With Serious Adverse Events (SAE)Following the administration of the first dose of the study vaccines throughout the entire study period up to study month 5An SAE is any untoward medical occurrence that: results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study subject, or may evolve into one of the outcomes listed above.
Anti-polyribosyl-ribitol Phosphate (Anti-PRP) Antibody ConcentrationsOne month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccineConcentration of anti-PRP antibody given as GMC in ug/mL.

Countries

South Korea

Participant flow

Participants by arm

ArmCount
Synflorix Group
Subjects received 3 doses of Synflorix vaccine co-administered with Hiberix vaccine at Study Months 0, 2 and 4
374
Prevenar Group
Subjects received 3 doses of Prevenar vaccine co-administered with Hiberix vaccine at Study Months 0, 2 and 4
129
Total503

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyConsent withdrawal63
Overall StudyLost to Follow-up40
Overall Studyserious adverse event (SAE)01

Baseline characteristics

CharacteristicPrevenar GroupTotalSynflorix Group
Age, Continuous9.5 years
STANDARD_DEVIATION 1.43
9.5 years
STANDARD_DEVIATION 1.47
9.5 years
STANDARD_DEVIATION 1.49
Region of Enrollment
East Asia
129 participants502 participants
0
373 participants
Region of Enrollment
Southeast Asia
0 participants1 participants
0
1 participants
Sex: Female, Male
Female
71 Participants260 Participants189 Participants
Sex: Female, Male
Male
58 Participants243 Participants185 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
357 / 374124 / 129
serious
Total, serious adverse events
56 / 3749 / 129

Outcome results

Primary

Number of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off Value

Anti-pneumococcal antibody cut-off value assessed was 0.20 microgram per milliliter (ug/mL). The vaccine pneumococcal serotypes assessed include 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F, and 23F.

Time frame: One month after administration of 3rd dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity.

ArmMeasureGroupValue (NUMBER)
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-1344 subjects
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-4343 subjects
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-6B318 subjects
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-5344 subjects
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-7F344 subjects
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-9V343 subjects
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-14342 subjects
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-18C343 subjects
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-19F340 subjects
Synflorix GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-23F331 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-18C123 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-17 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-9V122 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-4123 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-23F121 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-6B121 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-14123 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-518 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-19F123 subjects
Prevenar GroupNumber of Subjects With Vaccine Pneumococcal Serotypes Antibody Concentrations Above the Cut-Off ValueAnti-7F4 subjects
Secondary

Antibody Concentrations Against Pneumococal Serotypes Contained in the Vaccine

Concentrations are reported as Geometric Mean Concentrations in ug/mL. Pneumococcal serotypes assessed include 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F, and 23F.

Time frame: One month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity, on subjects with available data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-19F7.41 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-44.00 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-54.52 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-6B1.40 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-23F1.96 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-7F4.08 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-9V3.39 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-145.54 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-18C5.80 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-13.41 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-18C5.13 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-10.04 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-23F3.94 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-45.35 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-9V5.09 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-50.07 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-7F0.03 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-6B2.07 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-148.51 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococal Serotypes Contained in the VaccineAnti-19F2.77 ug/mL
Secondary

Antibody Concentrations Against Pneumococcal Cross-reactive Serotypes

Concentration of cross-reactive pneumococcal serotypes 6A and 19A in ug/mL.

Time frame: One month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity, on subjects with available data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Synflorix GroupAntibody Concentrations Against Pneumococcal Cross-reactive SerotypesAnti-6A0.38 ug/mL
Synflorix GroupAntibody Concentrations Against Pneumococcal Cross-reactive SerotypesAnti-19A0.29 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococcal Cross-reactive SerotypesAnti-6A0.48 ug/mL
Prevenar GroupAntibody Concentrations Against Pneumococcal Cross-reactive SerotypesAnti-19A0.12 ug/mL
Secondary

Anti-PD Antibody Concentration

Concentration of anti-PD antibody given as GMC expressed in EL.U/mL.

Time frame: One month after administration of 3rd vaccine dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity, on subjects with available data.

ArmMeasureValue (GEOMETRIC_MEAN)
Synflorix GroupAnti-PD Antibody Concentration1622.4 EL.U/mL
Prevenar GroupAnti-PD Antibody Concentration88.2 EL.U/mL
Secondary

Anti-polyribosyl-ribitol Phosphate (Anti-PRP) Antibody Concentrations

Concentration of anti-PRP antibody given as GMC in ug/mL.

Time frame: One month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity, on subjects with available data.

ArmMeasureValue (GEOMETRIC_MEAN)
Synflorix GroupAnti-polyribosyl-ribitol Phosphate (Anti-PRP) Antibody Concentrations20.131 ug/mL
Prevenar GroupAnti-polyribosyl-ribitol Phosphate (Anti-PRP) Antibody Concentrations11.844 ug/mL
Secondary

Number of Subjects Reporting Solicited Local Symptoms

Solicited local symptoms assessed include pain, redness and swelling.

Time frame: Within 4 days after each vaccination

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureGroupValue (NUMBER)
Synflorix GroupNumber of Subjects Reporting Solicited Local SymptomsPain210 subjects
Synflorix GroupNumber of Subjects Reporting Solicited Local SymptomsRedness252 subjects
Synflorix GroupNumber of Subjects Reporting Solicited Local SymptomsSwelling182 subjects
Prevenar GroupNumber of Subjects Reporting Solicited Local SymptomsPain72 subjects
Prevenar GroupNumber of Subjects Reporting Solicited Local SymptomsRedness84 subjects
Prevenar GroupNumber of Subjects Reporting Solicited Local SymptomsSwelling69 subjects
Secondary

Number of Subjects Reporting Unsolicited Adverse Events

Time frame: Within 31 days after each vaccination

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureValue (NUMBER)
Synflorix GroupNumber of Subjects Reporting Unsolicited Adverse Events213 subjects
Prevenar GroupNumber of Subjects Reporting Unsolicited Adverse Events62 subjects
Secondary

Number of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal Serotypes

Seropositivity status for protein D is defined as anti protein D (anti-PD) antibody concentrations \>= 100 Enzyme-Linked Immuno Sorbent Assay (EL) units EL.U/mL. Seropositivity status for pneumococcal serotypes is defined as anti-pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F antibody concentrations \>= 0.05 ug/mL.

Time frame: One month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity.

ArmMeasureGroupValue (NUMBER)
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-23F340 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-4344 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-7F344 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-5344 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-9V343 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-PD343 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-14344 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-6B337 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-18C344 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-1344 subjects
Synflorix GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-19F344 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-144 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-585 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-6B122 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-19F123 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-23F122 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-PD123 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-4123 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-7F22 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-9V123 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-14123 subjects
Prevenar GroupNumber of Subjects With a Seropositivity Status Against Protein D and Defined Pneumococcal SerotypesAnti-18C123 subjects
Secondary

Number of Subjects With Cross-reactive Pneumococcal Serotype Antibody Concentrations Above the Cut-Off Value

Anti-pneumococcal antibody cut-off value assessed was 0.20 microgram per milliliter (ug/mL). Pneumococcal cross-reactive serotypes were 6A and 19A.

Time frame: One month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity, on subjects with available data.

ArmMeasureGroupValue (NUMBER)
Synflorix GroupNumber of Subjects With Cross-reactive Pneumococcal Serotype Antibody Concentrations Above the Cut-Off ValueAnti-6A232 subjects
Synflorix GroupNumber of Subjects With Cross-reactive Pneumococcal Serotype Antibody Concentrations Above the Cut-Off ValueAnti-19A203 subjects
Prevenar GroupNumber of Subjects With Cross-reactive Pneumococcal Serotype Antibody Concentrations Above the Cut-Off ValueAnti-6A85 subjects
Prevenar GroupNumber of Subjects With Cross-reactive Pneumococcal Serotype Antibody Concentrations Above the Cut-Off ValueAnti-19A33 subjects
Secondary

Number of Subjects With Opsonophagocytic Activity Against Pneumococcal Cross-reactive Serotypes

The results were presented as the dilution of serum (opsonic titer) able to sustain 50% killing of live pneumococci under the assay conditions. In this assay the cut-off value for opsonophagocytic activity against pneumococcal cross-reactive serotypes 6A and 19A was defined as \>= 8.

Time frame: One month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity, on subjects with available data.

ArmMeasureGroupValue (NUMBER)
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Cross-reactive SerotypesOpsono-19A (N= 162; 60)53 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Cross-reactive SerotypesOpsono-6A (N=158; 60)134 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Cross-reactive SerotypesOpsono-6A (N=158; 60)54 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Cross-reactive SerotypesOpsono-19A (N= 162; 60)7 subjects
Secondary

Number of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off Value

The results were presented as the dilution of serum (opsonic titer) able to sustain 50% killing of live pneumococci under the assay conditions. In this assay the cut-off value for opsonophagocytic activity against pneumococcal antibody assessed was \>= 8. The vaccine pneumococcal serotypes assessed include 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F.

Time frame: One month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity, on subjects with available data.

ArmMeasureGroupValue (NUMBER)
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-6B (N=162; 63)152 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-7F (N=164; 59)164 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-4 (N=161; 63)158 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-9V (N= 165; 63)164 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-18C (N= 159; 63)142 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-14 (N= 165; 63)163 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-19F (N=164; 61)159 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-5 (N=165; 62)161 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-23F (N= 164; 63)160 subjects
Synflorix GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-1 (N=162; 62)150 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-23F (N= 164; 63)62 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-1 (N=162; 62)8 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-6B (N=162; 63)63 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-9V (N= 165; 63)62 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-14 (N= 165; 63)62 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-4 (N=161; 63)63 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-5 (N=165; 62)6 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-7F (N=164; 59)40 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-18C (N= 159; 63)61 subjects
Prevenar GroupNumber of Subjects With Opsonophagocytic Activity Against Pneumococcal Serotypes Contained in the Vaccine Above the Cut-off ValueOpsono-19F (N=164; 61)55 subjects
Secondary

Number of Subjects With Serious Adverse Events (SAE)

An SAE is any untoward medical occurrence that: results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study subject, or may evolve into one of the outcomes listed above.

Time frame: Following the administration of the first dose of the study vaccines throughout the entire study period up to study month 5

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureValue (NUMBER)
Synflorix GroupNumber of Subjects With Serious Adverse Events (SAE)56 subjects
Prevenar GroupNumber of Subjects With Serious Adverse Events (SAE)9 subjects
Secondary

Number of Subjects With Seroprotection Status Against PRP

Seroprotection status is defined as anti-PRP antibody concentrations above 0.15 ug/mL and above 1.0 ug/mL

Time frame: One month after the administration of the 3rd vaccine dose of the pneumococcal conjugate vaccine

Population: Analysis was performed on the According-to-Protocol (ATP) cohort for analysis of immunogenicity, on subjects with available data.

ArmMeasureGroupValue (NUMBER)
Synflorix GroupNumber of Subjects With Seroprotection Status Against PRPAbove 0.15175 subjects
Synflorix GroupNumber of Subjects With Seroprotection Status Against PRPAbove 1.0173 subjects
Prevenar GroupNumber of Subjects With Seroprotection Status Against PRPAbove 0.1560 subjects
Prevenar GroupNumber of Subjects With Seroprotection Status Against PRPAbove 1.058 subjects
Secondary

Number of Subjects With Solicited General Symptoms

Solicited general symptoms assessed include drowsiness, fever, irritability and loss of appetite. Fever was defined as axillary temperature \>= 37.5 degrees Celsius.

Time frame: Within 4 days after each vaccination

Population: Analysis was performed on the Total Vaccinated Cohort, on subjects with available data.

ArmMeasureGroupValue (NUMBER)
Synflorix GroupNumber of Subjects With Solicited General SymptomsDrowsiness212 subjects
Synflorix GroupNumber of Subjects With Solicited General SymptomsFever113 subjects
Synflorix GroupNumber of Subjects With Solicited General SymptomsIrritability293 subjects
Synflorix GroupNumber of Subjects With Solicited General SymptomsLoss of Appetite177 subjects
Prevenar GroupNumber of Subjects With Solicited General SymptomsLoss of Appetite66 subjects
Prevenar GroupNumber of Subjects With Solicited General SymptomsDrowsiness65 subjects
Prevenar GroupNumber of Subjects With Solicited General SymptomsIrritability99 subjects
Prevenar GroupNumber of Subjects With Solicited General SymptomsFever33 subjects

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026