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GSK Biologicals' Synflorix

Phase 3

Infections, Streptococcal | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: Nov 15, 2019

Success Probability

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment365

FDA Designations

No designations recorded

Clinical trial landscape

GSK Biologicals' Synflorix · 1 trial · 1 indication

Phase 3 1
NCT00678301Primary Vaccination Course in Children Receiving the Pneumococcal Vaccine GSK 1024850A, Zilbrix™ Hib and Polio Sabin™Infections, Streptococcal
COMPLETED365 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

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

Concentrations of Antibodies Against Cross-reactive Pneumococcal Serotypes 6A and 19A (Anti-6A and -19A)
At Month 3, one month after the administration of the third dose of Synflorix vaccine
Titers for Opsonophagocytic Activity (OPA) Against Vaccine Pneumococcal Serotypes
At Month 3, one month after the administration of the third dose of Synflorix vaccine
Titers for Opsonophagocytic Activity (OPA) Against Cross-reactive Pneumococcal Serotypes
At Month 3, one month after the administration of the third dose of Synflorix vaccine
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
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™BIOLOGICAL3 IM doses.
GSK Biologicals' Polio Sabin™BIOLOGICAL3 oral doses
GSK Biologicals' Zilbrix™ HibBIOLOGICAL3 IM doses.
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Eligibility Criteria

Age Range6 Weeks to 10 Weeks
SexALL
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: * Male or female subjects between, and including 6-10 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. * Wr...

Countries:MaliNigeria
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Frequently asked questions about GSK Biologicals' Synflorix

What is Synflorix used for?

Synflorix is a pneumococcal vaccine developed by GSK Biologicals for the prevention of infections caused by Streptococcus pneumoniae. It is intended for use in children, with a primary vaccination course studied in infants as young as 6 weeks of age. The vaccine is being investigated for its ability to protect against streptococcal infections.

Who makes Synflorix?

Synflorix is developed by GSK Biologicals, a subsidiary of GSK plc, which trades on the London Stock Exchange under the ticker GSK. The vaccine is part of GSK's infectious disease portfolio and has been studied in a Phase 3 clinical trial for the prevention of streptococcal infections in children.

What phase is Synflorix in?

Synflorix is in Phase 3 clinical development. A Phase 3 trial, NCT00678301, has been completed, evaluating the primary vaccination course in children receiving the pneumococcal vaccine GSK 1024850A. The trial enrolled 365 participants and was conducted in Mali and Nigeria.

What clinical trials is Synflorix in?

Synflorix has one completed Phase 3 clinical trial, NCT00678301, titled 'Primary Vaccination Course in Children Receiving the Pneumococcal Vaccine GSK 1024850A, Zilbrix™ Hib and Polio Sabin™'. The trial enrolled 365 children aged 6 weeks and older in Mali and Nigeria, and was a controlled, randomized study.

Is Synflorix FDA approved?

Synflorix is an investigational vaccine and has not been reported as FDA approved. It is currently in clinical development, with a completed Phase 3 trial. The vaccine is being studied for the prevention of streptococcal infections, but regulatory approval status has not been established based on available information.