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Synflorix

Phase 3

Infections, Rotavirus | Monoclonal antibody | Infectious Disease |GSK plc|Trials Updated: Mar 2, 2021

Synflorix development status

Highest phase Phase 3
Registered trials 8 across 1 sponsor since Jun 2006

Synflorix target and mechanism

ModalityMonoclonal antibody

Also known as Synflorix (3-Dose), Synflorix™( GSK1024850A), Synflorix™ vaccine, Pneumococcal conjugate vaccine GSK1024850A, 10 valent pneumococcal conjugate (vaccine), Pneumococcal vaccine GSK1024850A, GSK1024805A, GSK's pneumococcal polysaccharide conjugate vaccine

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials10
Total Enrollment4,512

FDA Designations

No designations recorded

Synflorix clinical trials

Synflorix · 10 trials · 3 indications

Phase 3 9Phase 2 1
NCT01746108Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Pneumococcal Vaccine (Synflorix™) When Administered to Children Who Are at an Increased Risk of Pneumococcal InfectionInfections, Streptococcal
COMPLETED52 Analytics
NCT01641133Primary Vaccination With Either Synflorix™ or Prevenar 13™ or Both Vaccines and Booster Vaccination With Synflorix™Infections, Streptococcal
COMPLETED457 Analytics
NCT01153841Primary Vaccination Study With GSK Biologicals' Pneumococcal Vaccine in Healthy Infants in VietnamInfections, Streptococcal
COMPLETED300 Analytics
NCT00624819Assessment of Antibody Persistence in Children Previously Vaccinated With Pneumococcal Conjugate VaccineInfections, Streptococcal
COMPLETED524 Analytics
NCT00547248Pneumococcal Vaccine Booster Study in Healthy Children 12-18 Mths Old Previously Primed With the Same VaccinesInfections, Streptococcal
COMPLETED756 Analytics
NCT00533507Primary Vaccination Study With a Pneumococcal Conjugate Vaccine in Healthy Children 6 to 8 Weeks of AgeInfections, Rotavirus
COMPLETED230 Analytics
NCT00489554Primary Vaccination Study With a Pneumococcal Conjugate Vaccine in Healthy Children 6 to 12wks of AgeInfections, Streptococcal
COMPLETED230 Analytics
NCT00370396Safety and Immunogenicity Study of a Booster Dose of GSK Biologicals' 10-valent Pneumococcal Conjugate Vaccine.Infections, Streptococcal
COMPLETED1,200 Analytics
NCT00345358Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' 10-valent Pneumococcal Conjugate VaccineInfections, Streptococcal
COMPLETED600 Analytics
PHASE3COMPLETED
Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Pneumococcal Vaccine (Synflorix™) When Administered to Children Who Are at an Increased Risk of Pneumococcal Infection
Infections, StreptococcalUnlock trial analytics
PHASE3COMPLETED
Primary Vaccination With Either Synflorix™ or Prevenar 13™ or Both Vaccines and Booster Vaccination With Synflorix™
Infections, StreptococcalUnlock trial analytics
PHASE3COMPLETED
Primary Vaccination Study With GSK Biologicals' Pneumococcal Vaccine in Healthy Infants in Vietnam
Infections, StreptococcalUnlock trial analytics
PHASE3COMPLETED
Assessment of Antibody Persistence in Children Previously Vaccinated With Pneumococcal Conjugate Vaccine
Infections, StreptococcalUnlock trial analytics
PHASE3COMPLETED
Pneumococcal Vaccine Booster Study in Healthy Children 12-18 Mths Old Previously Primed With the Same Vaccines
Infections, StreptococcalUnlock trial analytics
PHASE3COMPLETED
Primary Vaccination Study With a Pneumococcal Conjugate Vaccine in Healthy Children 6 to 8 Weeks of Age
Infections, RotavirusUnlock trial analytics
PHASE3COMPLETED
Primary Vaccination Study With a Pneumococcal Conjugate Vaccine in Healthy Children 6 to 12wks of Age
Infections, StreptococcalUnlock trial analytics
PHASE3COMPLETED
Safety and Immunogenicity Study of a Booster Dose of GSK Biologicals' 10-valent Pneumococcal Conjugate Vaccine.
Infections, StreptococcalUnlock trial analytics
PHASE3COMPLETED
Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' 10-valent Pneumococcal Conjugate Vaccine
Infections, StreptococcalUnlock trial analytics

Study Endpoints

Primary Endpoints

Concentrations of Antibodies Against Vaccine Pneumococcal Serotypes in the At Risk Primed Group.
One month after Dose 1 (At Month 1)

Antibodies assessed for this outcome measure were those against the vaccine pneumococcal serotypes 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F (ANTI-1, -4, -5, -6A, -6B, -7F, -9V, -14, -18C, -19A, -19F and -23F). Antibody concentrations were measured by 22F-inhibition enzyme-linked immunosorbent assay (ELISA), expressed as geometric mean concentrations (GMCs), in micrograms per millilitre (μg/mL). The seropositivity cut-off of the assay was an antibody concentration ≥ 0.05 μg/mL. Antibody concentrations \< 0.05 μg/mL were given an arbitrary value of half the cut-off for the purpose of GMC calculation.

Concentrations of Antibodies Against Vaccine Pneumococcal Serotypes in the At Risk Un-primed Group.
One month after Dose 1 (At Month 1) and one month after Dose 2 (At Month 3)

Antibodies assessed for this outcome measure were those against the vaccine pneumococcal serotypes 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F (ANTI-1, -4, -5, -6A, -6B, -7F, -9V, -14, -18C, -19A, -19F and -23F). Antibody concentrations were measured by 22F-inhibition enzyme-linked immunosorbent assay (ELISA), expressed as geometric mean concentrations (GMCs), in micrograms per millilitre (μg/mL). The seropositivity cut-off of the assay was an antibody concentration ≥ 0.05 μg/mL. Antibody concentrations \< 0.05 μg/mL were given an arbitrary value of half the cut-off for the purpose of GMC calculation.

Opsonophagocytic Titers Against Vaccine Pneumococcal Serotypes in the At Risk Primed Group.
One month after Dose 1 (At Month 1)

Pneumococcal vaccine serotypes assessed were 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F and were calculated, expressed as geometric mean titers (GMTs). The seropositivity cut-off for the assay was ≥ 8. Antibody titers \< 8 were given an arbitrary value of half the cut-off for the purpose of GMT calculation.

Opsonophagocytic Titers Against Vaccine Pneumococcal Serotypes in the At Risk Un-primed Group.
One month after Dose 1 (At Month 1) and one month after Dose 2 (At Month 3)

Pneumococcal vaccine serotypes assessed were 1, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F and were calculated, expressed as geometric mean titers (GMTs). The seropositivity cut-off for the assay was ≥ 8. Antibody titers \< 8 were given an arbitrary value of half the cut-off for the purpose of GMT calculation.

Concentrations of Antibodies Against Protein D (PD) in the At Risk Primed Group.
One month after Dose 1 (At Month 1)

Anti-protein D (Anti-PD) antibody concentrations by Enzyme-Linked Immunosorbent Assay (ELISA) were calculated, expressed as geometric mean concentrations (GMCs) in ELISA unit per millilitre (EL.U/mL) and tabulated. The seropositivity cut-off for the assay was ≥ 153 EL.U/mL. Antibody concentrations \< 153 EL.U/mL were given an arbitrary value of half the cut-off for the purpose of GMC calculation.

Concentrations of Antibodies Against Protein D (PD) in the At Risk Unprimed Group.
One month after Dose 1 (At Month 1) and one month after Dose 2 (At Month 3)

Anti-protein D (Anti-PD) antibody concentrations by Enzyme-Linked Immunosorbent Assay (ELISA) were calculated, expressed as geometric mean concentrations (GMCs) in ELISA unit per millilitre (EL.U/mL) and tabulated. The seropositivity cut-off for the assay was ≥ 153 EL.U/mL. Antibody concentrations \< 153 EL.U/mL were given an arbitrary value of half the cut-off for the purpose of GMC calculation.

Number of Subjects With Grade 3 Adverse Events (AEs) (Solicited and Unsolicited) - Primary Period
Within 31-day (Day 0-Day 30) after any dose of primary vaccination

The number of subjects with Grade 3 AEs (solicited and unsolicited), during the 31-day post-vaccination period following each primary dose is reported.

Number of Subjects With Grade 3 Symptoms (Solicited and Unsolicited)
Within the 31-day (Days 0-30) after each dose and across doses

The incidence and nature of Grade 3 symptoms (solicited and unsolicited) reported during the 31-day post-vaccination period following each dose and across doses are presented.

Number of Subjects With Anti-vaccine Pneumococcal Serotypes Antibody Concentrations Greater Than or Equal to (≥) the Cut-off [Follow-up Period: Persistence Analysis in Year 1 (111345 Sub-study)]
At Year 1 (Y1) (post booster vaccination administered in study 10PN-PD-DIT-007)

A seropositive subject was a subject whose antibody concentration was greater than or equal to (≥) the cut-off value. Analysis was performed using the 22F-inhibition Enzyme-linked immunosorbent assay (ELISA), using 0.05 microgram per milliliter (µg/mL) as seropositivity cut off.

Number of Subjects With Anti-vaccine Pneumococcal Serotypes Antibody Concentrations ≥ the Cut-off [Follow-up Period: Persistence Analysis in Year 2 (111346 Sub-study)]
At Year 2 (Y2) (post booster vaccination administered in study 10PN-PD-DIT-007)

A seropositive subject was a subject whose antibody concentration was greater than or equal to (≥) the cut-off value. Analysis was performed using the 22F-inhibition Enzyme -linked immunosorbent assay (ELISA), using 0.05 μg/mL as seropositivity cut off.

Number of Subjects With Anti-vaccine Pneumococcal Serotypes Antibody Concentrations ≥ the Cut-off [Follow-up Period: Persistence Analysis in Year 4 (111347 Sub-study)]
At Year 4 (Y4) (post booster vaccination administered in study 10PN-PD-DIT-007)

A seropositive subject was a subject whose antibody concentration was greater than or equal to (≥) the cut-off value. Analysis was performed using the 22F-inhibition Enzyme-linked immunosorbent assay (ELISA), using 0.05 μg/mL as seropositivity cut off.

Number of Subjects Reporting Rectal Temperature Greater Than (>) the Cut-off
Within the 4-day (Days 0-3) period after booster vaccination

Fever was measured as rectal temperature. The cut-off was 39.0 degree Celsius (°C). Assessment of occurrences of fever \> 39.0 (°C) was performed after booster vaccination with Synflorix™ or Prevenar™ vaccines.

Concentration of Anti-Protein D Antibodies
One month after the third dose

Concentrations are given as geometric mean concentrations (GMC) and expressed in Enzyme-Linked Immuno Sorbent Assay (ELISA) units per milliliter (EL.U/mL).

Concentration of Anti-Pneumococcal Antibodies
One month after the third dose

Concentrations are given as geometric mean titers (GMC) and expressed in microgram per milliliter (µg/mL). The vaccine pneumococcal serotypes assessed include 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F, and 23F.

Antibody Concentrations Against Pneumococcal Vaccine Serotypes
One month after the administration of the 3rd vaccine dose i.e. Month 5

Concentrations were expressed as geometric mean concentration (GMC). The vaccine pneumococcal serotypes assessed include 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F, and 23F.

Antibody Concentrations Against Protein D
One month after the administration of the 3rd vaccine dose i.e. Month 5

Concentrations were given as geometric mean concentration (GMC) expressed as enzyme-linked immuno-sorbent assay (ELISA) units per milliliter.

Number of Subjects With Rectal Temperature Above (>) 39.0 Degrees Celsius (°C) Post Booster Between the Synflorix-Synflorix and Prevenar-Prevenar Groups
Within 4 days (Days 0-3) after the booster vaccination at Month 0 in this study 10PN-PD-DIT-007

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.

Number of Subjects With Anti-pneumococcal Serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F Antibody Concentrations >= 0.20 Microgram Per Milliliter (µg/mL). (Primary/Full Vaccination)
At one month after primary (Synflorix <6M & Synflorix 7-11M Groups) or after the full (Synflorix 12-23M & Synflorix >=24M Groups) vaccination course with Synflorix™, that is Month (M)3 for Synflorix <6M & 12-23M groups, M2 for Synflorix 7-11M Group, & M1

Anti-pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F antibody concentrations were assessed by 22F-inhibition Enzyme-Linked Immuno-Sorbent Assay (ELISA) method. The \>=0.20 microgram per milliliter (microg/mL) cut-off corresponded to the seroprotection cut-off as regards anti-pneumococcal serotypes antibody concentrations. Seropositivity status, defined as anti-pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F antibody concentrations ≥ 0.05 microg/mL.

Number of Subjects Reporting Grade 3 Symptoms (Solicited and Unsolicited)
Within 4 days after the administration of any study vaccine dose

Grade 3 symptoms are symptoms which prevent normal, everyday activities (e.g. in a young child such symptom would prevent attendance at school/ kindergarten/ a day-care center and would cause the parents/guardians to seek medical advice).

Secondary Endpoints

Number of Subjects With Any and Severe (Grade 3) Solicited Local Adverse Events (AEs) After Dose 1 for Subjects Aged Between 2 to 4 Years.
During the 4-day (Days 0-3) after dose 1
Number of Subjects With Any and Severe (Grade 3) Solicited Local Adverse Events (AEs) After Dose 2 for Subjects Aged Between 2 to 4 Years.
During the 4-day (Days 0-3) after dose 2
Number of Subjects With Any and Severe (Grade 3) Solicited Local Adverse Events (AEs) After Dose 1 for Subjects Aged Between 5 to 17 Years.
During the 4-day (Days 0-3) after dose 1
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
At-risk-Unprimed GroupEXPERIMENTALSubjects who have not been previously vaccinated with any pneumococcal vaccine and are at an increased risk of pneumococcal infection.
At-risk-Primed GroupEXPERIMENTALSubjects who have been previously vaccinated * with at least one dose of a pneumococcal conjugate vaccine i.e. either Synflorix (10Pn-PD-DiT), Prevenar or Prevenar13. * with plain polysaccharide pneumococcal vaccine more than 2 years and less than 5 years before enrollment. and are at an increased risk of pneumococcal infection.
Healthy-Unprimed GroupACTIVE_COMPARATORSubjects who have not been previously vaccinated with any pneumococcal vaccine and are healthy.
Healthy-Primed GroupACTIVE_COMPARATORSubjects who have been previously vaccinated with at least one dose of a pneumococcal vaccine and are healthy.
Synflorix GroupACTIVE_COMPARATORSubjects who were primed with two doses of Synflorix vaccine, administered intramuscularly into the right or left thigh, at 2 and 4 months of age, received a booster dose of Synflorix vaccine, administered intramuscularly into the right or left anterolateral thigh or in the deltoid, at 12-15 months of age.
Prevnar 1 GroupEXPERIMENTALSubjects who were primed with Prevnar 13 and Synflorix vaccines, administered intramuscularly into the right or left thigh, at 2 and 4 months of age respectively, received a booster dose of Synflorix vaccine, administered intramuscularly into the right or left thigh or in the deltoid, at 12-15 months of age.
Prevnar 2 GroupEXPERIMENTALSubjects who were primed with two doses of Prevnar 13 vaccine, administered intramuscularly into the right or left thigh, at 2 and 4 months of age, received a booster dose of Synflorix vaccine, administered intramuscularly into the right or left anterolateral thigh or in the deltoid, at 12-15 months of age.
Control GroupACTIVE_COMPARATORSubjects receiving Infanrix hexa™ vaccine alone.
Synflorix + Infanrix + Havrix and/or Varilrix GroupEXPERIMENTALThis group consisted of subjects primed with Synflorix vaccine in the 10PN-PD-DIT-001 (1105553) and 007 (107046) studies. In 105553 study, subjects had been primed with 3 doses of Synflorix vaccine at 2, 3 and 4 months of age co-administered with Infanrix related vaccines. In 107046 study, subjects had received a booster dose of Synflorix vaccine at 12-18 months of age co-administered with Infanrix hexa vaccine. In this study, in the Year 4 (111347 study), subjects received at Month 48 (4 years post Dose 1 in study 105553) one additional dose of Synflorix vaccine. In addition, subjects were also offered vaccination against hepatitis A (2 doses of Havrix) and/or against varicella (a single dose of Varilrix).
Prevenar + Infanrix + Havrix and/or Varilrix GroupACTIVE_COMPARATORThis group consisted of subjects vaccinated with Prevenar vaccine in the 10PN-PD-DIT-001 (105553) and 007 (107046) studies. In 105553 study, subjects had been primed with 3 doses of Prevenar vaccine at 2, 3 and 4 months of age co-administered with Infanrix related vaccines. In 107046 study, subjects had received a booster dose at 12-18 months of age of Prevenar vaccine co-administered with Infanrix hexa vaccine. In this study, in the Year 4 111347 study, subjects had received at Month 48 (4 years post Dose 1 in study 105553) one dose of Synflorix vaccine. In addition, subjects were also offered vaccination against hepatitis A (2 doses of Havrix and/or against varicella (a single dose of Varilrix).
Prevenar + Synflorix + Infanrix + Havrix and/or VarilrixEXPERIMENTALThis group consisted of subjects vaccinated with Prevenar and Synflorix vaccines in the 10PN-PD-DIT-001 (105553) and 10PN-PD-DIT-007 (107046) studies. In 105553 study, subjects had been primed with 3 doses Prevenar vaccine at 2, 3 and 4 months of age co-administered with Infanrix related vaccines. In the 107046 study, subjects had received at 12-18 months of age a booster dose of Synflorix vaccine co-administered with Infanrix hexa vaccine. In this study, in the Year 4 (111347 study), subjects had received at Month 48 (4 years post Dose 1 in study 105553) one additional dose of Synflorix vaccine. In addition, subjects were also offered vaccination against hepatitis A (2 doses of Havrix and/or against varicella (a single dose of Varilrix).
Unprimed GroupEXPERIMENTALThis group consisted of subjects between, and including, 64-68 months of age at the time of additional vaccination (primed subjects) or dose 1 (unprimed subjects), and for whom the investigator believed that their parents/guardians could and would comply with the requirements of the protocol. Subjects were not previously vaccinated with any pneumococcal vaccine and received 2 doses of Synflorix vaccine at 64-68 and 66-70 months of age (at Day 0 and Month 2). The Unprimed Group was added only in Year 4 of the study.
Synflorix + Tritanrix -HepB/ Hiberix + Polio Sabin GroupEXPERIMENTALSubjects in the Philippines, primary vaccinated at 6-10-14 weeks of age, receiving booster dose of Synflorix™ vaccine, co-administered with Tritanrix™-HepB/ Hiberix™ and Polio Sabin™ vaccines at 12-18 months of age.
Prevenar + Tritanrix - HepB/ Hiberix + Polio Sabin GroupACTIVE_COMPARATORSubjects in the Philippines, primary vaccinated at 6-10-14 weeks of age, receiving booster dose of the Prevenar™ vaccine, co-administered with Tritanrix™-HepB/ Hiberix™ and Polio Sabin™ at 12-18 months of age.
Synflorix + Tritanrix -HepB/ Hiberix + Poliorix GroupEXPERIMENTALSubjects in Poland, primary vaccinated at 2-4-6 months of age, receiving booster dose of Synflorix™ vaccine co-administered with Tritanrix™-HepB/Hiberix™ and Poliorix™ vaccines at 12-18 months of age.
Prevenar + Tritanrix -HepB/ Hiberix + Poliorix GroupACTIVE_COMPARATORSubjects in Poland, primary vaccinated at 2-4-6 months of age, receiving booster dose of the Prevenar™ vaccine, co-administered with Tritanrix -HepB/ Hiberix and Poliorix™ at 12-18 months of age.
Synflorix Vaccine GroupEXPERIMENTALSubjects receiving Synflorix vaccine co-administered with DTPa-HBV-IPV/Hib (Infanrix hexa) vaccine at 2-4-6 months of age, and co-administered with HRV (Rotarix) vaccine at 2-4 months of age.
Synflorix-Synflorix GroupEXPERIMENTALThis 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 GroupACTIVE_COMPARATORThis 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 GroupEXPERIMENTALThis 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.
Synflorix <6M GroupACTIVE_COMPARATORThis group consisted of subjects up to 6 months of age at first vaccination who received 3 doses of Synflorix™ vaccine co-administered with Infanrix™ IPV/Hib at 3, 4 and 5 months of age and a booster dose of the same vaccines at 12-15 months of age. Vaccines were administrated intramuscularly in the right (Synflorix™) or the left (Infanrix™ IPV/Hib ) thigh or deltoid region (deltoid region only for children \>12 months of age if muscle size was adequate).
Synflorix 7-11M GroupEXPERIMENTALThis group consisted of subjects 7 to 11 months of age at first vaccination who received 2 doses of Synflorix™, one first dose at enrolment followed by a second dose one month later, and a booster dose at 12-15 months of age. The Synflorix™ vaccine was administrated intramuscularly in the right thigh or deltoid region (deltoid region only for children \>12 months of age if muscle size was adequate).
Synflorix 12-23M GroupEXPERIMENTALThis group consisted of subjects 12 to 23 months inclusive at first vaccination who received 2 doses of Synflorix™, one first dose at enrolment followed by a second dose 2 months later. The Synflorix™ vaccine was administrated intramuscularly in the right thigh or deltoid region (deltoid region only for children \>12 months of age if muscle size was adequate).
Synflorix >=24M GroupEXPERIMENTALThis group consisted of subjects aged between 24 months (inclusive) to 5 years (inclusive) at vaccination who received one dose of Synflorix™. The Synflorix™ vaccine was administrated intramuscularly in the right thigh or deltoid region (deltoid region only for children \>12 months of age if muscle size was adequate).
Synflorix Booster GroupEXPERIMENTALSubjects previously primed with Synflorix™ and receiving in the current study Havrix™ co-administered with Infanrix™ hexa (Dose 1) and Synflorix™ (Dose 2).
Synflorix Catch-up GroupEXPERIMENTALSubjects previously primed with Havrix™ co-administered with Infanrix™ hexa and receiving in the current study Synflorix™ co-administered with Infanrix™ hexa (Dose 1) and Synflorix™ (Dose 2).

Interventions

NameTypeDescription
Synflorix™BIOLOGICAL1 or 2 doses depending on the priming status, intramuscularly in the non-dominant deltoid muscle or the thigh.
Synflorix (3-Dose)BIOLOGICAL3 doses administered intramuscularly
Synflorix (2-Dose)BIOLOGICAL2 doses administered intramuscularly
Synflorix (Single Dose)BIOLOGICAL1 dose administered intramuscularly
Prevenar 13 (Single Dose)BIOLOGICAL1 dose administered intramuscularly
Prevenar 13 (2-Dose)BIOLOGICAL2 doses administered intramuscularly
Synflorix™( GSK1024850A)BIOLOGICALIntramuscular, 3 doses
Infanrix hexa™BIOLOGICALIntramuscular, 3 doses
GSK1024805ABIOLOGICALNo vaccination in this trial
PrevenarBIOLOGICALNo vaccination in this trial
Infanrix hexaBIOLOGICALNo vaccination in this trial
HavrixBIOLOGICALNo vaccination in this trial
VarilrixBIOLOGICALNo vaccination in this trial
SynflorixBIOLOGICALIntramuscular injection, 1 dose
Tritanrix-HepBBIOLOGICALIntramuscular injection, 1 dose
HiberixBIOLOGICALReconstituted with Tritanrix-Hep B before injection
Polio SabinBIOLOGICALOral, 1 dose
PoliorixBIOLOGICALIntramuscular injection, 1 dose
Prevenar (Wyeth)BIOLOGICALIntramuscular injection, 1 dose
RotarixBIOLOGICALOral, 2 doses.
Infanrix IPV/HibBIOLOGICAL4 intramuscular injections
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Eligibility Criteria

Age Range2 Years to 17 Years
SexALL
Healthy VolunteersYes
Study Sites6

Inclusion Criteria: * Subjects who the investigator believes that parent(s)/Legally Acceptable Representative(s) \[LAR(s)\] can and will comply with the requirements of the protocol. * Written informed consent obtained from the parent(s)/LAR(s) of the subject and informed assent obtained from the s...

Countries:PolandRussiaMexicoVietnamPhilippinesTaiwanFinlandFranceChile
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Frequently asked questions about Synflorix

What is Synflorix used for?

Synflorix is a pneumococcal vaccine studied for the prevention of infections caused by Streptococcus pneumoniae, including streptococcal infections. It has been evaluated in children, including healthy infants and children at increased risk of pneumococcal infection. Its clinical program also lists rotavirus among the infections studied.

Who makes Synflorix?

Synflorix is developed by GSK plc, which trades under the ticker GSK. The vaccine appears in GSK's clinical development program under the identifier GSK1024850A, and the company has sponsored the Phase 3 studies conducted across multiple countries.

What phase is Synflorix in?

Synflorix has been studied in Phase 3 clinical development. Eight trials are listed for the vaccine, all of which are completed, with no active trials currently listed. The completed studies enrolled a total of 3,758 participants.

What clinical trials is Synflorix in?

Synflorix has completed eight clinical trials, including NCT01746108 in children at increased risk of pneumococcal infection, NCT01641133 comparing primary vaccination with Synflorix or Prevenar 13, NCT01153841 in healthy infants in Vietnam, and NCT00547248, a booster study in children previously primed with the same vaccines.

Is Synflorix the same as Synflorix vaccine or GSK1024850A?

Yes. Synflorix, Synflorix vaccine, Synflorix (3-Dose), and Synflorix (GSK1024850A) all refer to the same GSK pneumococcal vaccine. GSK1024850A is the company's internal identifier for the product, and the other names are alternate ways of referring to the same vaccine.