Trial Outcomes & Findings for Safety and Immunogenicity Study of a Booster Dose of GSK Biologicals' 10-valent Pneumococcal Conjugate Vaccine. (NCT NCT00370396)

Last Updated: 2019-06-10

Results Overview

Fever was measured as rectal temperature. Assessment of occurrences of rectal temperature \> 39.0 °C was performed post administration of the booster dose of pneumococcal vaccine (Synflorix™ or Prevenar™ vaccine) in this study. The analysis was performed on the Total vaccinated cohort, which included all subjects vaccinated in this study 10PN-PD-DIT-007, solely on subjects with results available.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

1200 participants

Primary outcome timeframe

Within 4 days (Days 0-3) after the booster vaccination at Month 0 in this study 10PN-PD-DIT-007

Results posted on

2019-06-10

Participant Flow

This study consisted of approximately 1200 subjects who were previously enrolled and had been vaccinated with either the 10Pn or 7Pn vaccine as part of the 10PN-PD-DIT-001 (105553) study (EudraCTnumber: 2005-003300-11).

During the screening the following was performed: informed consent was obtained and signed from parents or guardians of subjects, check for inclusion/exclusion criteria and contraindications/precautions was performed, and medical history of subjects was collected. Prior to vaccination, subjects' pre-vaccination body temperature was evaluated.

Participant milestones

Participant milestones
Measure	Synflorix-Synflorix Group This group consisted of subjects previously vaccinated with the Synflorix™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Prevenar Group This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Prevenar™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Prevenar™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Synflorix Group This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.
Overall Study STARTED	737	92	283
Overall Study COMPLETED	726	91	282
Overall Study NOT COMPLETED	11	1	1

Reasons for withdrawal

Reasons for withdrawal
Measure	Synflorix-Synflorix Group This group consisted of subjects previously vaccinated with the Synflorix™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Prevenar Group This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Prevenar™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Prevenar™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Synflorix Group This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.
Overall Study Withdrawal by Subject	0	0	1
Overall Study Lost to Follow-up	11	1	0

Baseline Characteristics

Safety and Immunogenicity Study of a Booster Dose of GSK Biologicals' 10-valent Pneumococcal Conjugate Vaccine.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure	Synflorix-Synflorix Group n=737 Participants This group consisted of subjects previously vaccinated with the Synflorix™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Prevenar Group n=92 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Prevenar™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Prevenar™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Synflorix Group n=283 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Total n=1112 Participants Total of all reporting groups
Age, Continuous	15.3 Months STANDARD_DEVIATION 2.08 • n=5 Participants	14.2 Months STANDARD_DEVIATION 2.26 • n=7 Participants	14.2 Months STANDARD_DEVIATION 2.23 • n=5 Participants	14.93 Months STANDARD_DEVIATION 2.19 • n=4 Participants
Sex: Female, Male Female	360 Participants n=5 Participants	50 Participants n=7 Participants	134 Participants n=5 Participants	544 Participants n=4 Participants
Sex: Female, Male Male	377 Participants n=5 Participants	42 Participants n=7 Participants	149 Participants n=5 Participants	568 Participants n=4 Participants

PRIMARY outcome

Timeframe: Within 4 days (Days 0-3) after the booster vaccination at Month 0 in this study 10PN-PD-DIT-007

Population: The analysis was performed on the Total vaccinated cohort, which included all vaccinated subjects, who completed their symptom sheets.

Outcome measures

Outcome measures
Measure	Synflorix-Synflorix Group n=735 Participants This group consisted of subjects previously vaccinated with the Synflorix™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Prevenar Group n=91 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Prevenar™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Prevenar™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Synflorix Group This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.
Number of Subjects With Rectal Temperature Above (>) 39.0 Degrees Celsius (°C) Post Booster Between the Synflorix-Synflorix and Prevenar-Prevenar Groups	24 Participants	7 Participants	—

SECONDARY outcome

Timeframe: Within 4 days (Days 0-3) after the booster vaccination at Month 0 in this study 10PN-PD-DIT-007

Population: The analysis was performed on the Total vaccinated cohort, which included all vaccinated subjects, who completed their symptom sheets..

Solicited local symptoms assessed include pain, redness and swelling. Grade 3 pain was defined as crying when limb was moved/spontaneously painful. Grade 3 swelling/redness was defined as swelling/redness larger than (\>) 30 millimeters (mm). "Any" is defined as incidence of the specified symptom regardless of intensity. The analysis was performed on the Total vaccinated cohort, which included all subjects vaccinated in this study 10PN-PD-DIT-007, solely on subjects with results available.

Outcome measures

Outcome measures
Measure	Synflorix-Synflorix Group n=735 Participants This group consisted of subjects previously vaccinated with the Synflorix™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Prevenar Group n=91 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Prevenar™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Prevenar™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Synflorix Group n=282 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.
Number of Subjects With Any and Grade 3 Solicited Local Symptoms Any Pain	452 Participants	48 Participants	150 Participants
Number of Subjects With Any and Grade 3 Solicited Local Symptoms Grade 3 Pain	47 Participants	3 Participants	18 Participants
Number of Subjects With Any and Grade 3 Solicited Local Symptoms Any Swelling	338 Participants	42 Participants	112 Participants
Number of Subjects With Any and Grade 3 Solicited Local Symptoms Grade 3 Swelling	67 Participants	7 Participants	20 Participants
Number of Subjects With Any and Grade 3 Solicited Local Symptoms Any Redness	451 Participants	59 Participants	153 Participants
Number of Subjects With Any and Grade 3 Solicited Local Symptoms Grade 3 Redness	96 Participants	7 Participants	19 Participants

SECONDARY outcome

Timeframe: Within 4 days (Days 0-3) after the booster vaccination at Month 0 in this study 10PN-PD-DIT-007

Population: The analysis was performed on the Total vaccinated cohort, which included all vaccinated subjects, who completed their symptom sheets..

Solicited general symptoms assessed include drowsiness, fever (defined as rectal temperature ≥ 38.0°C), irritability, and loss of appetite. Grade 3 drowsiness was defined as drowsiness which prevented normal everyday activities. Grade 3 fever was defined as fever (rectal temperature) above (\>) 40.0 degree Celsius (°C). Grade 3 irritability was defined as crying that could not be comforted/preventing normal everyday activities. Grade 3 loss of appetite was defined as the subject not eating at all. "Any" is defined as incidence of the specified symptom regardless of intensity or relationship to study vaccination. The analysis was performed on the Total vaccinated cohort, which included all subjects vaccinated in this study 10PN-PD-DIT-007, solely on subjects with results available.

Outcome measures

Outcome measures
Measure	Synflorix-Synflorix Group n=735 Participants This group consisted of subjects previously vaccinated with the Synflorix™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Prevenar Group n=91 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Prevenar™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Prevenar™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Synflorix Group n=282 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.
Number of Subjects With Any and Any Grade 3 Solicited General Symptoms Any loss of appetite	230 Participants	31 Participants	92 Participants
Number of Subjects With Any and Any Grade 3 Solicited General Symptoms Grade 3 loss of appetite	4 Participants	0 Participants	3 Participants
Number of Subjects With Any and Any Grade 3 Solicited General Symptoms Any drowsiness	303 Participants	48 Participants	130 Participants
Number of Subjects With Any and Any Grade 3 Solicited General Symptoms Grade 3 drowsiness	5 Participants	0 Participants	5 Participants
Number of Subjects With Any and Any Grade 3 Solicited General Symptoms Any fever	245 Participants	33 Participants	112 Participants
Number of Subjects With Any and Any Grade 3 Solicited General Symptoms Grade 3 fever	1 Participants	2 Participants	3 Participants
Number of Subjects With Any and Any Grade 3 Solicited General Symptoms Any irritability	438 Participants	55 Participants	176 Participants
Number of Subjects With Any and Any Grade 3 Solicited General Symptoms Grade 3 irritability	15 Participants	2 Participants	12 Participants

SECONDARY outcome

Timeframe: Within 31 days (Day 0-30) after the booster vaccination at Month 0 in this study 10PN-PD-DIT-007

Population: The analysis was performed on the Total vaccinated cohort, which included all vaccinated subjects.

An AE is any untoward medical occurrence in a clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. "Any" is defined an incidence of an unsolicited AE regardless of intensity or relationship to study vaccination. The analysis was performed on the Total vaccinated cohort, which included all subjects vaccinated in this study 10PN-PD-DIT-007.

Outcome measures

Outcome measures
Measure	Synflorix-Synflorix Group n=737 Participants This group consisted of subjects previously vaccinated with the Synflorix™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Prevenar Group n=92 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Prevenar™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Prevenar™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Synflorix Group n=283 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.
Number of Subjects With Unsolicited Adverse Events (AEs)	188 Participants	32 Participants	99 Participants

SECONDARY outcome

Timeframe: Throughout the Active Phase of the study, that is, within 31 days (Day 0-30) after the booster vaccination at Month 0 in this study 10PN-PD-DIT-007

Population: The analysis was performed on the Total vaccinated cohort, which included all vaccinated subjects.

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, or may evolve into one of the outcomes listed above. "Any" is defined an incidence of a SAE regardless of intensity/severity . The analysis was performed on the Total vaccinated cohort, which included all subjects vaccinated in this study 10PN-PD-DIT-007.

Outcome measures

Outcome measures
Measure	Synflorix-Synflorix Group n=737 Participants This group consisted of subjects previously vaccinated with the Synflorix™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Prevenar Group n=92 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Prevenar™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Prevenar™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Synflorix Group n=283 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.
Number of Subjects With Serious Adverse Events (SAEs) During the Active Phase of the Study	12 Participants	1 Participants	4 Participants

SECONDARY outcome

Timeframe: Throughout the study period, from Month 0 prior to booster vaccination up to Month 6, end of the ESFU in this study 10PN-PD-DIT-007

Population: The analysis was performed on the Total vaccinated cohort, which included all vaccinated subjects.

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, or may evolve into one of the outcomes listed above. "Any" is defined an incidence of a SAE regardless of intensity/severity. The analysis was performed on the Total vaccinated cohort, which included all subjects vaccinated in this study 10PN-PD-DIT-007, solely on subjects enrolled in the ESFU Phase of the study.

Outcome measures

Outcome measures
Measure	Synflorix-Synflorix Group n=726 Participants This group consisted of subjects previously vaccinated with the Synflorix™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Prevenar Group n=92 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Prevenar™ vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Prevenar™ vaccine, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.	Prevenar-Synflorix Group n=282 Participants This group consisted of subjects previously vaccinated with the Prevenar™ vaccine as part of a previous study by GSK Biologicals - the 10PN-PD-DIT-001 (105553) study (EuDRA-CT number: 2005-003300-11). As part of the 105553 study, subjects had received a 3-dose primary vaccination of Synflorix vaccine at 2, 3 and 4 months of age (injected intramuscularly \[IM\] in the right thigh) co-administered with Infanrix hexa™ vaccine, except for the second dose in France, which was co-administered with Infanrix™ IPV Hib, injected intramuscularly in the left thigh. As part of this study, at 12-18 months of age, subjects received a booster dose of Synflorix™, injected IM in the right thigh or deltoid, co-administered with Infanrix hexa™ vaccine, injected IM in the left thigh or deltoid.
Number of Subjects With Serious Adverse Events (SAEs) During the Entire Study	33 Participants	6 Participants	8 Participants

SECONDARY outcome

Timeframe: Prior to (PRE) and one month after (Month 1) booster vaccination

Population: The analysis was performed on the According-To-Protocol (ATP) Cohort for immunogenecity, which included all evaluable subjects whith available immunogenecity data. This included subjects for whom assay results were available for antibodies against at least one study vaccine antigen component after booster vaccination.

A seroprotected subject as regards anti-pneumococcal serotype antibody was defined as a subject with anti-pneumococcal serotype antibody concentration above than or equal to (≥) 0.20 microgram per millilitre (μg/mL). Anti-pneumococcal serotypes antibodies assessed were antibodies against pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F (Anti-1, -4, -5, -6B, -7F, 9V, -14, -18C, -19F and -23F). Analysis was performed using the 22F-inhibition Enzyme-linked immunosorbent assay (ELISA), using ≥ 0.05 μg/mL as seropositivity cut off. For this endpoint, the analysis was performed on the according-to-protocol cohort for immunogenicity, e. a., evaluable subjects for whom assay results were available for antibodies against at least one study vaccine antigen component after booster vaccination.