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GSK Biologicals' Synflorix

Phase 3

Infections, Streptococcal | Vaccine | Infectious Disease |GSK plc|Trials Updated: Nov 15, 2019

GSK Biologicals' Synflorix development status

Highest phase Phase 3
Registered trials 1 across 1 sponsor since May 2008

GSK Biologicals' Synflorix target and mechanism

ModalityVaccine

Also known as 10Pn

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials2
Total Enrollment815

FDA Designations

No designations recorded

GSK Biologicals' Synflorix clinical trials

GSK Biologicals' Synflorix · 2 trials · 1 indication

Phase 3 2
NCT00911144Booster Vaccination Study With a Pneumococcal Vaccine in Children Primed With the Same VaccineInfections, Streptococcal
COMPLETED450 Analytics
NCT00678301Primary Vaccination Course in Children Receiving the Pneumococcal Vaccine GSK 1024850A, Zilbrix™ Hib and Polio Sabin™Infections, Streptococcal
COMPLETED365 Analytics
PHASE3COMPLETED
Booster Vaccination Study With a Pneumococcal Vaccine in Children Primed With the Same Vaccine
Infections, StreptococcalUnlock trial analytics
PHASE3COMPLETED
Primary Vaccination Course in Children Receiving the Pneumococcal Vaccine GSK 1024850A, Zilbrix™ Hib and Polio Sabin™
Infections, StreptococcalUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Subjects Reporting Grade 3 Adverse Events
Within 31 days (Day 0 - Day 30) after booster vaccination.

Grade 3 adverse events are severe symptoms that prevent normal, everyday activities.

Concentrations of Antibodies Against Vaccine Pneumococcal Serotypes
At Month 3, one month after the administration of the third dose of Synflorix vaccine

Pneumococcal serotypes assessed were vaccine pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F. Seropositivity cut-off for the assay was an anti-pneumococcal serotypes 1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F antibody (Anti-1, 4, 5, 6B, 7F, 9V, 14, 18C, 19F and 23F) concentrations greater than or equal to (≥) 0.05 microgram per milliliter (μg/mL).

Antibody Concentrations Against Protein D (Anti-PD Antibodies)
At Month 3, one month after the administration of the third dose of Synflorix vaccine

Anti-PD antibody concentrations were expressed in enzyme-linked immunsorbent assay (ELISA) units per milliliter (EL.U/mL). Seropositivity cut-off for the assay was an anti-PD antibody concentrations ≥ 100 EL.U/mL.

Secondary Endpoints

Number of Subjects Reporting Solicited Symptoms
Within 4 days (Days 0 to 3) after booster vaccination
Number of Subjects Reporting Unsolicited Adverse Events
Within 31 days (Days 0 to 30) after booster vaccination
Number of Subjects Reporting Serious Adverse Events
After booster vaccination up to study end (Month 0 to Month 1)
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingSINGLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Synflorix GroupEXPERIMENTALSubjects previously primed (NCT00680914) with 3 doses of Synflorix and Hiberix in the first year of life receiving a booster dose of the same vaccines in the second year of life by intramuscular injection into the right and the left thigh or deltoid, respectively.
Prevenar GroupACTIVE_COMPARATORSubjects previously primed (NCT00680914) with 3 doses of Prevenar and Hiberix in the first year of life receiving a booster dose of Prevenar and Hiberix in the second year of life by intramuscular injection into the right and the left thigh or deltoid, respectively.
SYNFLORIX™ + ZILBRIX™ HIB + POLIO SABIN™EXPERIMENTALSubjects in this group received 3 doses of Synflorix™ vaccine, according to a 3-dose schedule at 6-10-14 weeks of age co-administered with 3 doses of Expanded Program on Immunization (EPI) vaccines Zilbrix™ Hib and Polio Sabin™ according to the same schedule. The Synflorix™ and Zilbrix™ Hib vaccines were administered by intramuscular injection, in the right and left thigh respectively. The Polio Sabin™ vaccine was administered orally.
ZILBRIX™ HIB + POLIO SABIN™EXPERIMENTALSubjects in this group received 3 doses of Expanded Program on Immunization (EPI) vaccines Zilbrix™ Hib and Polio Sabin™ according to a 3-dose schedule at 6-10-14 weeks of age. The Zilbrix™ Hib vaccine was administered by intramuscular injection, in the left thigh. The Polio Sabin™ vaccine was administered orally.

Interventions

NameTypeDescription
GSK Biologicals' Synflorix™ (Pneumococcal vaccine GSK1024850A)BIOLOGICALIntramuscular injection, administered as a single dose
Wyeth-Lederle's Prevenar™BIOLOGICALIntramuscular injection, administered as a single dose
GSK Biologicals' Hiberix™BIOLOGICALIntramuscular injection, administered as a single dose
GSK Biologicals' Synflorix™BIOLOGICAL3 IM doses.
GSK Biologicals' Polio Sabin™BIOLOGICAL3 oral doses
GSK Biologicals' Zilbrix™ HibBIOLOGICAL3 IM doses.
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Eligibility Criteria

Age Range12 Months to 18 Months
SexALL
Healthy VolunteersYes
Study Sites14

Inclusion Criteria: * A male or female between, and including, 12-18 months of age at the time of booster vaccination. * Subjects for whom the investigator believes that their parent(s)/ guardian(s) can and will comply with the requirements of the protocol. * Subjects who received three doses of pn...

Countries:South KoreaMaliNigeria
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Frequently asked questions about GSK Biologicals' Synflorix

What is GSK Biologicals' Synflorix?

GSK Biologicals' Synflorix is a pneumococcal vaccine developed by GSK plc for the prevention of streptococcal infections. It is a vaccine candidate studied in pediatric populations, including infants and young children. The program has completed Phase 3 clinical development across two trials with a combined enrollment of 815 participants.

What is GSK Biologicals' Synflorix used for?

GSK Biologicals' Synflorix is being studied for the prevention of Infections, Streptococcal, a category of pneumococcal disease. Its clinical trials enrolled healthy children, including infants from 6 weeks of age and children from 12 months of age, in South Korea, Mali, and Nigeria.

Who makes GSK Biologicals' Synflorix?

GSK Biologicals' Synflorix is developed by GSK plc, which trades under the ticker GSK. The vaccine is also referred to in company materials as Pneumococcal vaccine GSK1024850A, reflecting its internal development code.

What phase is GSK Biologicals' Synflorix in?

GSK Biologicals' Synflorix is in Phase 3 development. Both of its recorded clinical trials are Phase 3 studies and both have completed, with no trials currently listed as active. The program enrolled 815 participants in total across randomized, active-controlled designs.

What clinical trials is GSK Biologicals' Synflorix in?

GSK Biologicals' Synflorix has been evaluated in two completed Phase 3 trials. NCT00911144 was a booster vaccination study in children primed with the same vaccine, run in South Korea with 450 participants. NCT00678301 studied a primary vaccination course in children in Mali and Nigeria with 365 participants.

Is GSK Biologicals' Synflorix the same as Pneumococcal vaccine GSK1024850A?

Yes. GSK Biologicals' Synflorix is also known as Pneumococcal vaccine GSK1024850A, its internal GSK development designation. The two names refer to the same pneumococcal vaccine candidate, which is also written as GSK Biologicals' Synflorix.