Adults 15 Months to 21 Months, any sex, with Infections, Streptococcal. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Number of Subjects With Grade 3 Adverse Events (Solicited and Unsolicited)Primary· Within 31 days (Day 0-Day 30) after booster vaccination
The incidence and nature of Grade 3 symptoms (solicited and unsolicited), reported during the 31-day (Days 0-30) post-vaccination are presented.
Any symptom
Group
Value
95% CI
Synflorix Primed Group
3
General symptoms
Group
Value
95% CI
Synflorix Primed Group
1
Local symptoms
Group
Value
95% CI
Synflorix Primed Group
2
Number of Subjects With Any and Grade 3 Solicited Local SymptomsSecondary· Within 4 days (Day 0-Day 3) after the booster dose
Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 30 millimeters (mm) of injection site.
Any Pain
Group
Value
95% CI
Synflorix Primed Group
40
Grade 3 Pain
Group
Value
95% CI
Synflorix Primed Group
0
Any Redness
Group
Value
95% CI
Synflorix Primed Group
17
Grade 3 Redness
Group
Value
95% CI
Synflorix Primed Group
2
Any Swelling
Group
Value
95% CI
Synflorix Primed Group
67
Grade 3 Swelling
Group
Value
95% CI
Synflorix Primed Group
0
Number of Subjects With Any, Grade 3 and Related Solicited General SymptomsSecondary· Within 4 days (Day 0-Day 3) after the booster dose
Assessed solicited general symptoms were drowsiness, fatigue, fever \[defined as axillary temperature equal to or above 37.5 degrees Celsius (°C)\], irritability and loss of appetite. Any = occurrence of the symptom regardless of intensity grade. Grade 3 Drowsiness and Irritability = symptom that prevented normal activity. Grade 3 Loss of appetite = not eating at all. Grade 3 fever = fever \> 39.5 °C. Related = symptom assessed by the investigator as related to the vaccination.
Any Drowsiness
Group
Value
95% CI
Synflorix Primed Group
0
Grade 3 Drowsiness
Group
Value
95% CI
Synflorix Primed Group
0
Related Drowsiness
Group
Value
95% CI
Synflorix Primed Group
0
Any Fever
Group
Value
95% CI
Synflorix Primed Group
34
Grade 3 Fever
Group
Value
95% CI
Synflorix Primed Group
0
Related Fever
Group
Value
95% CI
Synflorix Primed Group
31
Any Irritability
Group
Value
95% CI
Synflorix Primed Group
8
Grade 3 Irritability
Group
Value
95% CI
Synflorix Primed Group
0
Number of Subjects With Any and Grade 3 Solicited Local SymptomsSecondary· Within 4 days (Day 0-Day 3) after each vaccine dose
Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 30 millimeters (mm) of injection site.
Any Pain, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
22
Grade 3 Pain, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
0
Any Redness, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
6
Grade 3 Redness, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
0
Any Swelling, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
46
Grade 3 Swelling, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
1
Any Pain, Dose 2
Group
Value
95% CI
Synflorix Unprimed Group
7
Grade 3 Pain, Dose 2
Group
Value
95% CI
Synflorix Unprimed Group
0
Number of Subjects With Any, Grade 3 and Related Solicited General SymptomsSecondary· Within 4 days (Day 0-Day 3) after each vaccine dose
Assessed solicited general symptoms were drowsiness, fatigue, fever \[defined as axillary temperature equal to or above 37.5 degrees Celsius (°C)\], irritability and loss of appetite. Any = occurrence of the symptom regardless of intensity grade. Grade 3 Drowsiness and Irritability = symptom that prevented normal activity. Grade 3 Loss of appetite = not eating at all. Grade 3 fever = fever \> 39.5 °C. Related = symptom assessed by the investigator as related to the vaccination.
Any Drowsiness, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
1
Grade 3 Drowsiness, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
0
Related Drowsiness, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
1
Any Fever, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
21
Grade 3 Fever, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
0
Related Fever, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
19
Any Irritability, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
3
Grade 3 Irritability, Dose 1
Group
Value
95% CI
Synflorix Unprimed Group
0
Number of Subjects With Any Unsolicited Adverse Events (AEs)Secondary· Within 31 days (Day 0-Day 30) after each vaccine dose
An unsolicited AE covers 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 and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.
Group
Value
95% CI
Synflorix Primed Group
95
Synflorix Unprimed Group
57
Number of Subjects With Serious Adverse Events (SAEs)Secondary· From the first vaccination up to one month (31 days) after the last vaccination for each subject
Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.
Group
Value
95% CI
Synflorix Primed Group
0
Synflorix Unprimed Group
0
Concentrations of Antibodies Against Vaccine Pneumococcal Serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23FSecondary· Prior to (PRE) and one month after (POST) the booster immunization in the Synflorix Primed Group and prior to (PRE) the first dose and one month after (POST) the second dose of the catch-up vaccination in the Synflorix Unprimed Group
Vaccine pneumococcal serotypes assessed were serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F. Concentrations were expressed as geometric mean concentrations (GMCs) in microgram per milliliter (μg/mL). Pneumococcal serotype specific total immunoglobuline G (IgG) antibodies were measured by 22F-inhibition Enzyme-linked immunosorbent assay (ELISA). The cut-off of the assay was ≥ 0.05 μg/mL.
Anti-1, PRE
Group
Value
95% CI
Synflorix Primed Group
0.28
0.23 – 0.35
Synflorix Unprimed Group
0.04
0.03 – 0.05
Anti-1, POST
Group
Value
95% CI
Synflorix Primed Group
5.85
5.07 – 6.76
Synflorix Unprimed Group
3.2
2.68 – 3.84
Anti-4, PRE
Group
Value
95% CI
Synflorix Primed Group
0.32
0.26 – 0.38
Synflorix Unprimed Group
0.06
0.04 – 0.09
Anti-4, POST
Group
Value
95% CI
Synflorix Primed Group
10.44
9.31 – 11.71
Synflorix Unprimed Group
6.54
5.47 – 7.82
Anti-5, PRE
Group
Value
95% CI
Synflorix Primed Group
0.37
0.32 – 0.43
Synflorix Unprimed Group
0.04
0.03 – 0.05
Anti-5, POST
Group
Value
95% CI
Synflorix Primed Group
6.07
5.2 – 7.1
Synflorix Unprimed Group
3.05
2.4 – 3.87
Anti-6B, PRE
Group
Value
95% CI
Synflorix Primed Group
0.66
0.55 – 0.8
Synflorix Unprimed Group
0.03
0.03 – 0.04
Anti-6B, POST
Group
Value
95% CI
Synflorix Primed Group
4.44
3.69 – 5.33
Synflorix Unprimed Group
0.78
0.57 – 1.08
Opsonophagocytic Activity Against Pneumococcal Serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23FSecondary· Prior to (PRE) and one month after (POST) the booster immunization in the Synflorix Primed Group and prior to (PRE) the first dose and one month after (POST) the second dose of the catch-up vaccination in the Synflorix Unprimed Group
OPA titers against pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F (Opsono-1, -4, -5, -6B, -7F, -9V, -14, -18C, -19F and -23F) were calculated, expressed as geometric mean titers (GMTs) and tabulated. The seropositivity cut-off for the assay was ≥ 8.
Opsono-1, PRE
Group
Value
95% CI
Synflorix Primed Group
9.3
7.3 – 11.8
Synflorix Unprimed Group
5.8
4.3 – 7.8
Opsono-1, POST
Group
Value
95% CI
Synflorix Primed Group
661.7
513.5 – 852.6
Synflorix Unprimed Group
108.7
79.5 – 148.6
Opsono-4, PRE
Group
Value
95% CI
Synflorix Primed Group
24
16.7 – 34.6
Synflorix Unprimed Group
11.8
6.3 – 22.1
Opsono-4, POST
Group
Value
95% CI
Synflorix Primed Group
6541.7
5468.5 – 7825.6
Synflorix Unprimed Group
2716.7
2149 – 3434.2
Opsono-5, PRE
Group
Value
95% CI
Synflorix Primed Group
9
7.4 – 10.9
Synflorix Unprimed Group
4.3
3.7 – 5
Opsono-5, POST
Group
Value
95% CI
Synflorix Primed Group
340.5
272.2 – 426
Synflorix Unprimed Group
71.9
51.8 – 99.7
Opsono-6B, PRE
Group
Value
95% CI
Synflorix Primed Group
82.6
50.5 – 135.1
Synflorix Unprimed Group
38.7
16.2 – 92
Opsono-6B, POST
Group
Value
95% CI
Synflorix Primed Group
1729
1361.9 – 2194.9
Synflorix Unprimed Group
1202.9
701.3 – 2063
Concentrations of Antibodies Against Cross-reactive Pneumococcal Serotypes 6A and 19ASecondary· Prior to (PRE) and one month after (POST) the booster immunization in the Synflorix Primed Group and prior to (PRE) the first dose and one month after (POST) the second dose of the catch-up vaccination in the Synflorix Unprimed Group
Cross-reactive pneumococcal serotypes assessed were serotypes 6A and 19A. Concentrations were expressed as geometric mean concentrations (GMCs) in microgram per milliliter (μg/mL). The antibody concentrations against the cross-reactive pneumococcal serotypes 6A and 19A were determined by 22F-inhibition Enzyme-linked immunosorbent assay (ELISA). The cut-off of the assay was ≥ 0.05 μg/mL.
Anti-6A, PRE
Group
Value
95% CI
Synflorix Primed Group
0.13
0.11 – 0.17
Synflorix Unprimed Group
0.04
0.03 – 0.05
Anti-6A, POST
Group
Value
95% CI
Synflorix Primed Group
0.55
0.42 – 0.73
Synflorix Unprimed Group
0.1
0.07 – 0.14
Anti-19A, PRE
Group
Value
95% CI
Synflorix Primed Group
0.16
0.13 – 0.22
Synflorix Unprimed Group
0.06
0.04 – 0.09
Anti-19A, POST
Group
Value
95% CI
Synflorix Primed Group
1.13
0.83 – 1.53
Synflorix Unprimed Group
1.36
0.91 – 2.03
Opsonophagocytic Activity Against Cross-reactive Pneumococcal Serotypes 6A and 19ASecondary· Prior to (PRE) and one month after (POST) the booster immunization in the Synflorix Primed Group and prior to (PRE) the first dose and one month after (POST) the second dose of the catch-up vaccination in the Synflorix Unprimed Group
OPA titers against pneumococcal serotypes 6A and 19A (Opsono-6A and Opsono-19A) were calculated, expressed as geometric mean titers (GMTs) and tabulated. The seropositivity cut-off for the assay was ≥ 8.
Opsono-6A, PRE
Group
Value
95% CI
Synflorix Primed Group
18.7
12.2 – 28.6
Synflorix Unprimed Group
24
12.5 – 46.3
Opsono-6A, POST
Group
Value
95% CI
Synflorix Primed Group
100.7
60.4 – 168
Synflorix Unprimed Group
106.3
46.3 – 244
Opsono-19A, PRE
Group
Value
95% CI
Synflorix Primed Group
6.2
5.1 – 7.6
Synflorix Unprimed Group
5.9
4.2 – 8.3
Opsono-19A, POST
Group
Value
95% CI
Synflorix Primed Group
91.5
60.4 – 138.5
Synflorix Unprimed Group
171.2
94.2 – 311.3
Concentrations of Antibodies Against Protein D (PD)Secondary· Prior to (PRE) and one month after (POST) the booster immunization in the Synflorix Primed Group and prior to (PRE) the first dose and one month after (POST) the second dose of the catch-up vaccination in the Synflorix Unprimed Group
Concentrations of antibodies against protein D (PD) were determined by ELISA assay. Concentrations were expressed as geometric mean concentrations (GMCs) in ELISA units per milliliter (EL.U/mL). Concentration of specific PD antibodies was determined, using a standard reference serum. The cut-off of the assay is ≥ 100 ELISA units per milliliter (EL.U/mL).
Anti-PD, PRE
Group
Value
95% CI
Synflorix Primed Group
301.1
257.7 – 351.8
Synflorix Unprimed Group
62.1
54.9 – 70.3
Anti-PD, POST
Group
Value
95% CI
Synflorix Primed Group
3710.1
3109 – 4427.4
Synflorix Unprimed Group
839.3
643.5 – 1094.6
Adverse events — posted to ClinicalTrials.gov
Time frame: Solicited AEs: within 4 days (Day 0-Day 3) after each vaccine dose; Unsolicited AEs: within 31 days (Day 0-Day 30) after each vaccine dose; SAEs: from the first vaccination up to one month (31 days) after the last vaccination for each subject..
Reporting threshold: 5%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
The purpose of this trial is to assess the safety, reactogenicity and immunogenicity of GSK Biologicals' pneumococcal conjugate vaccine GSK1024850A when administered either as a booster dose or as a two dose catch-up vaccination in the second year of life to the Malian subjects previously enrolled in the primary vaccination study NCT00678301.
This protocol posting deals with objectives \& outcome measures of the booster phase. The objectives \& outcome measures of the primary phase are presented in a separate protocol posting (NCT number = NCT00678301).
Publications & conference data
3 peer-reviewed publications reference this trial (live from Europe PMC):
NCT01153893 — Immunization of Children Previously Primed With GSK Pneumococcal Vaccine GSK1024850A and of Unprimed Children in Nigeria
· Phase 3
· completed
NCT01119625 — Immunological Persistence After Priming With GSK1024850A Vaccine and Safety& Immunogenicity After Booster Dose
· Phase 3
· completed
NCT01030822 — Booster and Catch-up Vaccination With Vaccine GSK1024850A
· Phase 3
· completed
NCT01027845 — Primary and Booster Vaccination Study With Pneumococcal Vaccine GSK1024850A in Healthy Japanese Children
· Phase 3
· completed
NCT00985751 — Safety & Immunogenicity of Pneumococcal Vaccine 2189242A in Children Aged 12-23 Months at the Time of First Vaccination
· Phase 2
· completed
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Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by GlaxoSmithKline
Last refreshed: 14 December 2018
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT00985465.