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GSK1247446A Group

Phase 2

Influenza | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: Jun 8, 2018

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment150
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00363077Study to Evaluate the Immunogenicity and the Safety of an Adjuvanted Influenza Vaccine CandidatePHASE2 COMPLETED 150Oct 2, 2006Nov 17, 2006Jun 8, 20181 Belgium
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Study Endpoints
Primary Endpoints
Titers for Serum Hemagglutination Inhibition (HI) Antibodies Against 3 Strains of Influenza Disease.
At Days 0 and 21

Titers are presented as geometric mean titers (GMTs). The 3 influenza strains assessed were A/New Caledonia, A/Wisconsin and B/Malaysia. The seropositivity cut-off assay was 1:10.

Number of Seroconverted Subjects Against 3 Strains of Influenza Disease.
At Day 21

A seroconverted subject was defined as a vaccinated subject who had either a pre-vaccination titer \<1:10 and a post-vaccination titer ≥1:40 or a pre-vaccination titer ≥1:10 and at least a four-fold increase in post-vaccination titer. The 3 influenza strains assessed were A/New Caledonia, A/Wisconsin and B/Malaysia.

Number of Seroprotected Subjects Against 3 Strains of Influenza Disease.
At Day 0 and Day 21

A seroprotected subject was defined as a vaccinated subject who had a serum HI titer ≥ 1:40. The 3 influenza strains assessed were A/New Caledonia, A/Wisconsin and B/Malaysia.

Seroconversion Factor for Hemagglutination Inhibition (HI) Antibodies Against 3 Strains of Influenza Disease.
At Day 21

The seroconversion factor (SCF) was defined as the fold increase in serum Hemagglutination Inhibition (HI) geometric mean titers (GMTs) post vaccination compared to Day 0. The 3 influenza strains assessed were A/New Caledonia, A/Wisconsin and B/Malaysia.

Secondary Endpoints
Geometric Mean of Influenza-specific Cluster of Differentiation (CD) 4 T-cells.
At Days 0 and 21
Geometric Mean of Influenza-specific Cluster of Differentiation (CD) 8 T-cells.
At Days 0 and 21
Number of Subjects With Any, Grade 3 and Related Solicited Local Symptoms.
During the 7-day (Days 0-6) post-vaccination period
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Study Design & Arms
AllocationRANDOMIZED
MaskingSINGLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
GSK1247446A GroupEXPERIMENTALSubjects aged 60 years or older at the time of vaccination received 1 dose of the GSK1247446A vaccine adjuvanted with AS03. The vaccine was administered intramuscularly into the deltoid region of the non-dominant arm.
Fluarix GroupACTIVE_COMPARATORSubjects aged 60 years or older at the time of vaccination received 1 dose of Fluarix™ vaccine. The vaccine was administered intramuscularly into the deltoid region of the non-dominant arm.
Interventions
NameTypeDescription
GSK1247446A GroupBIOLOGICALLow dose influenza vaccine adjuvanted with AS03 compared
Fluarix™BIOLOGICALGlaxoSmithKline (GSK) Biologicals' inactivated influenza split vaccine.
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Eligibility Criteria
Age Range60 Years — N/A
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Subjects who the investigator believes that they can and wil comply with the requirements of the protocol should be enrolled in the study. * A male or female 60 years or older at the time of the first vaccination. * Free of obvious health problems Exclusion Criteria: * Use o...

Countries:Belgium
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