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GSK2340274A

Phase 3

Influenza | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: Aug 1, 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
RandomizedDouble-BlindCONTROLLEDBiomarker
Total Trials4
Total Enrollment6,325
FDA Designations
No designations recorded
Clinical Trials (4)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00979602Safety, Immunogenicity, and Relative Efficacy of H1N1 Vaccines in Adults Aged 18 Years and OlderPHASE3 COMPLETED 4,048Nov 9, 2009Feb 1, 2011Mar 21, 201838 United States, Canada
NCT00976820Safety and Immunogenicity of H1N1 Vaccines in Children Aged 6 Months to Less Than 9 Years of AgePHASE2 COMPLETED 323Oct 20, 2009Mar 21, 2011Dec 12, 201730 United States, Canada
NCT00985088Safety and Immunogenicity of H1N1 Vaccines in Adults Aged 18 Years and OlderPHASE2 COMPLETED 1,343Oct 11, 2009Dec 16, 2010Dec 12, 201714 United States, Canada
NCT00985673Safety and Immunogenicity of H1N1 Vaccine With Trivalent Inactivated Seasonal Influenza Vaccine in AdultsPHASE2 COMPLETED 611Oct 1, 2009Dec 29, 2010Aug 1, 20187 United States, Canada
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Study Endpoints
Primary Endpoints
Number of Seroconverted (SCR) Subjects for Hemagglutination Inhibition (HI) Antibodies Against Flu A/CAL/7/09 H1N1 Virus Strain
At Day 21

A seroconverted subject was defined as a vaccinated subject who had a post-vaccination titer higher than or equal to (≥)1:40 or at least a 4-fold increase of the pre-vaccination titer of ≥ 1:10. The Flu strain assessed was A/California/7/09 (H1N1)v-like (Flu A/CAL/7/09) in subjects of 18-60 years and older and 18-64 years and older, following the Committee for Medicinal Products for Human Use (CHMP) and the Center for Biologics Evaluation and Research (CBER) guidance.

Number of Seroprotected (SPR) Subjects for HI Antibodies Against the Flu A/CAL/7/09 H1N1 Virus Strain
At Day 0

A seroprotected subject was defined as a vaccinated subject with serum Hemagglutination Inhibition (HI) antibody titer ≥ 1:40 against the tested virus. The Flu strain assessed was A/California/7/2009 (H1N1)v-like (Flu A/CAL/7/09) in subjects 18-60 years and older and 18-64 years and older, following the CHMP and the CBER guidance.

Seroconversion Factor (SCF) for HI Antibodies Against Flu A/CAL/7/09 H1N1 Virus Strain
At Day 21

SCF was defined as the fold increase in serum HI geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer to the pre-vaccination reciprocal HI titer for the vaccine virus, in subjects 18-60 years and older and 18-64 years and older, following the CHMP guidance.

Number of A/California/7/2009 (H1N1)V-like Illness (ILI) Cases
From Day 14 post-vaccination up to study end (at Day 385)

The analysis focused on Quantitative Reverse Transcription Polymerase Chain Reaction Assay (RT-qPCR)-confirmed A/California/7/2009 (H1N1)v-like illness (ILI) cases.

Number of Seroconverted Subjects Against Flu A/CAL/7/09 Influenza Strain - Preliminary Analysis
At Day 21

A seroconverted subject was defined as a vaccinated subject who had either a pre-vaccination reciprocal hemagglutination inhibition (HI) titer lower than (\<) 10 and a post-vaccination reciprocal HI titer higher than or equal to (≥) 40, or a pre-vaccination reciprocal hemagglutination inhibition (HI) titer ≥ 10 and at least a 4-fold increase in post vaccination reciprocal titer against the vaccine virus.

Number of Seroconverted Subjects Against Flu A/CAL/7/09 Influenza Strain - First Analysis
At Day 21

A seroconverted subject was defined as a vaccinated subject who had either a pre-vaccination reciprocal HI titer \< 10 and a post-vaccination reciprocal titer higher than or equal to (≥) 40, or a pre-vaccination reciprocal hemagglutination inhibition (HI) titer ≥ 10 and at least a 4-fold increase in post vaccination reciprocal titer against the vaccine virus.

Number of Seroconverted Subjects Against Flu A/CAL/7/09 Influenza Strain - Second Analysis
At Day 21

A seroconverted subject was defined as a vaccinated subject who had either a pre-vaccination reciprocal HI titer \< 10 and a post-vaccination reciprocal titer higher than or equal to (≥) 40, or a pre-vaccination reciprocal hemagglutination inhibition (HI) titer ≥ 10 and at least a 4-fold increase in post vaccination reciprocal titer against the vaccine virus.

Number of Seroprotected Subjects Against Flu A/CAL/7/09 Influenza Strain - Preliminary Analysis
At Day 0

A seroprotected subject was defined as a vaccinated subject with reciprocal HI titers higher than or equal to (≥) 40 against the tested virus.

Number of Seroprotected Subjects Against Flu A/CAL/7/09 Influenza Strain - First Analysis
At Day 0

A seroprotected subject was defined as a vaccinated subject with reciprocal HI titers higher than or equal to (≥) 40 against the tested virus.

Number of Seroprotected Subjects Against Flu A/CAL/7/09 Influenza Strain - Second Analysis
At Day 0

A seroprotected subject was defined as a vaccinated subject with reciprocal HI titers higher than or equal to (≥) 40 against the tested virus.

Number of Seroprotected Subjects Against Flu A/CAL/7/09 Strain - First Analysis
At Day 0

A seroprotected subject was defined as a vaccinated subject with reciprocal HI titers higher than or equal to (≥) 40 against the tested virus.

Number of Seroprotected Subjects Against Flu A/CAL/7/09 Strain - Second Analysis
At Day 0

A seroprotected subject was defined as a vaccinated subject with reciprocal HI titers higher than or equal to (≥) 40 against the tested virus.

Seroconversion Factor (SCF) for HI Antibodies Against Flu A/CAL/7/09 Influenza Strain - Preliminary Analysis
At Day 21

SCF was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer to the pre-vaccination reciprocal HI titer for the vaccine virus.

Seroconversion Factor (SCF) for HI Antibodies Against Flu A/CAL/7/09 Influenza Strain - First Analysis
At Day 21

SCF was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer to the pre-vaccination reciprocal HI titer for the vaccine virus.

Seroconversion Factor (SCF) for HI Antibodies Against Flu A/CAL/7/09 Influenza Strain - Second Analysis
At Day 21

SCF was defined as the geometric mean of the within-subject ratios of the post-vaccination reciprocal HI titer to the pre-vaccination reciprocal HI titer for the vaccine virus.

Number of Subjects Seropositive for Haemagglutination Inhibition (HI) Antibodies Against the A/California Virus Strain
At Day 0

A seropositive subject against the A/California/ virus strain was defined as a subject with H1N1 reciprocal haemagglutination inhibition (HI) antibody titers greater than or equal to (≥) the seropositivity cut-off of 1:10. Results were tabulated according to age strata: subjects between 18 to 60 years (y) old and subjects older than (\>) 60 years.

Number of Subjects Seropositive for (HI) Antibodies Against the A/California Virus Strain
At Day 0

A seropositive subject against the A/California/ virus strain was defined as a subject with H1N1 reciprocal haemagglutination inhibition (HI) antibody titers greater than or equal to (≥) the seropositivity cut-off of 1:10. Results were tabulated according to age strata: subjects between 18 to 64 years (y) old and subjects \> 64 years.

Number of Seroconverted (SCR) Subjects for Haemagglutination Inhibition (HI) Antibodies Against A/California Virus Strain
At Day 21

A seroconverted subject was defined as a vaccinated subject who had a post-vaccination titer ≥ 1:40 and at least a 4-fold increase in pre-vaccination titer. The Flu strain assessed was A/California/7/09 (H1N1)v-like) and results were tabulated for subjects between 18 and 60 years of age and older (\>60y).

Number of Seroconverted (SCR) Subjects for HI Antibodies Against A/California Strain
At Day 21

A seroconverted subject was defined as a vaccinated subject who had a post-vaccination titer ≥ 1:40 and at least a 4-fold increase in pre-vaccination titer. The Flu strain assessed was A/California/7/09 (H1N1)v-like) and results were tabulated for subjects between 18 and 64 years and older (\>64y).

Number of Seroprotected (SPR) Subjects for HI Antibodies Against A/California Virus Strain
At Day 0

A seroprotected subject was defined as a vaccinated subject with serum Hemagglutination Inhibition (HI) titer ≥ 1:40. The Flu strain assessed was A/California/7/2009 (H1N1)v-like (Flu A/CAL/7/09) and results were tabulated for subjects between 18 and 60 years and older (\>60y).

Number of Seroprotected (SPR) Subjects for HI Antibodies Against A/California Strain
At Day 0

A seroprotected subject was defined as a vaccinated subject with serum Hemagglutination Inhibition (HI) titer ≥ 1:40. The Flu strain assessed was Flu A/CAL/7/09 and results were tabulated for subjects between 18 and 64 years and older (\>64y).

Seroconversion Factor (SCF) for Haemagglutination Inhibition (HI) Antibodies Against A/California Virus Strain
At Day 21

SCF was defined as the fold increase in serum HI geometric mean ratio (mean\[log10(POST/PRE)\]) vaccination compared to Day 21. The flu strain assessed was Flu A/CAL/7/09 and results were tabulated for subjects between 18 and 60 years of age and older (\>60y).

Seroconversion Factor (SCF) for HI Antibodies Against A/California Strain
At Day 21

SCF was defined as the fold increase in serum HI geometric mean ratio (mean\[log10(POST/PRE)\]) vaccination compared to Day 21. The flu strain assessed was Flu A/CAL/7/09 and results were tabulated for subjects between 18 and 64 years of age and older (\>64y).

Hemagglutination Inhibition (HI) Antibody Titers Against A/California/7/2009 H1N1 Vaccine Strain.
21 days after the second dose of Arepanrix vaccine (at Day 42).

The A/California vaccine virus-homologous antibody response was measured in subjects having received Flulaval vaccine co-administered with the first dose of Arepanrix vaccine, and in subjects having received two doses of Arepanrix vaccine alone. Titers were expressed as geometric mean antibody titers (GMTs).

Secondary Endpoints
Number of Seropositive Subjects for HI Antibodies Against Flu A/CAL/7/09 H1N1 Virus Strain
At Days 0 and 21
Titers for Serum HI Antibodies Against Flu A/CAL/7/09 H1N1 Virus Strain
At Days 0 and 21
Number of Seroconverted (SCR) Subjects for HI Antibodies Against Flu A/CAL/7/09 H1N1 Virus Strain
At Day 42
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
GSK2340274A GroupEXPERIMENTALHealthy male or female subjects between and including 18 to 60 years of age and older (\>60 years) and between 18 to 64 years of age and older (\>64 years), who received one dose of the adjuvanted GSK2340274A vaccine at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm.
GSK2340273A GroupEXPERIMENTALHealthy male or female subjects between and including 18 to 60 years of age and older (\>60 years) and between 18 to 64 years of age and older (\>64 years), who received one dose of the unadjuvanted GSK2340273A vaccine at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm.
Arepanrix/F1 GroupEXPERIMENTALSubjects, aged 6 months - 9 years, male or female, received 2 doses of Arepanrix™-formulation 1 (F1) vaccine administered at a 21-day interval. The first dose was administered intramuscularly in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) or left anterolateral thigh \[for children under (\<) 12 months of age\]. The second vaccine dose was administered in the deltoid region of the dominant arm (or right arm) or right anterolateral thigh (children \< 12 months of age).
Arepanrix/F2 GroupEXPERIMENTALSubjects, aged 6 months - 9 years, male or female, received 2 doses of Arepanrix™-formulation 2 (F2) vaccine administered at a 21-day interval. The first dose was administered intramuscularly in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) or left anterolateral thigh (for children \< 12 months of age). The second vaccine dose was administered in the deltoid region of the dominant arm (or right arm) or right anterolateral thigh (children \< 12 months of age).
GSK2340273A/F1 GroupEXPERIMENTALSubjects, aged 6 months - 9 years, male or female, received 2 doses of GSK2340273A-formulation 1 (F1) vaccine administered at a 21-day interval. The first dose was administered intramuscularly in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) or left anterolateral thigh (for children \< 12 months of age). The second vaccine dose was administered in the deltoid region of the dominant arm (or right arm) or right anterolateral thigh (children \< 12 months of age).
GSK2340273A/F2 GroupEXPERIMENTALSubjects, aged 6 months - 9 years, male or female, received 2 doses of GSK2340273A-formulation 2 (F2) vaccine administered at a 21-day interval. The first dose was administered intramuscularly in the deltoid region of the non-dominant arm (or left arm if dominance was not yet identified) or left anterolateral thigh (for children \< 12 months of age). The second vaccine dose was administered in the deltoid region of the dominant arm (or right arm) or right anterolateral thigh (children \< 12 months of age).
GSK2340274A F1_2D GroupEXPERIMENTALHealthy male or female subjects, above and including 18 years of age, who received 2 doses of Formulation 1 (F1) of GSK2340274A vaccine: at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm and at Day 21, administered intramuscularly into the deltoid region of the dominant arm.
GSK2340274A F2_2D GroupEXPERIMENTALHealthy male or female subjects, above and including 18 years of age, who received 2 doses of Formulation 2 (F2) of GSK2340274A vaccine: at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm and at Day 21, administered intramuscularly into the deltoid region of the dominant arm.
GSK2340274A F2_1D GroupEXPERIMENTALHealthy male or female subjects, above and including 18 years of age, who received one dose of Formulation 2 (F2) of GSK2340274A vaccine at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm and one dose of saline placebo at Day 21, administered intramuscularly into the deltoid region of the dominant arm.
GSK2340274A F1_1D GroupEXPERIMENTALHealthy male or female subjects, above and including 18 years of age, who received one dose of Formulation 1 (F1) of GSK2340274A vaccine at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm and one dose of saline placebo at Day 21, administered intramuscularly into the deltoid region of the dominant arm.
GSK2340273A F1_1D GroupEXPERIMENTALHealthy male or female subjects, above and including 18 years of age, who received one dose of Formulation 1 (F1) of GSK2340273A vaccine at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm and one dose of saline at Day 21, administered intramuscularly into the deltoid region of the dominant arm.
GSK2340273A F2_2D GroupEXPERIMENTALHealthy male or female subjects, above and including 18 years of age, who received 2 doses of Formulation 2 (F2) of GSK2340273A vaccine: at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm and at Day 21, administered intramuscularly into the deltoid region of the dominant arm.
GSK2340273A F2_1D GroupEXPERIMENTALHealthy male or female subjects, above and including 18 years of age, who received one dose of Formulation 2 (F2) of GSK2340273A vaccine at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm and one dose of saline at Day 21, administered intramuscularly into the deltoid region of the dominant arm. Subjects above (\>) 60 years old received an additional dose of Formulation 2 (F2) of GSK2340273A vaccine after Day 42, administered into the deltoid region of the non-dominant arm.
GSK2340273A F3_2D GroupEXPERIMENTALHealthy male or female subjects, above and including 18 years of age, who received 2 doses of Formulation 3 of GSK2340273A vaccine: at Day 0, administered intramuscularly into the deltoid region of the non-dominant arm and at Day 21, administered intramuscularly into the deltoid region of the dominant arm.
Flulaval/placebo/unadjuvanted Arepanrix GroupEXPERIMENTALsubjects received co-administration of Flulaval vaccine and saline placebo on Day 0 followed by the unadjuvanted formulation of Arepanrix vaccine on Day 21 and Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm.
Flulaval/placebo/Arepanrix GroupEXPERIMENTALsubjects received co-administration of Flulaval vaccine and saline placebo on Day 0 followed the administration of Arepanrix vaccine on Day 21 and Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm.
Flulaval/unadjuvanted Arepanrix/placebo GroupEXPERIMENTALsubjects received co-administration of Flulaval vaccine and the unadjuvanted formulation of Arepanrix vaccine on Day 0 followed by the administration of the unadjuvanted formulation of Arepanrix vaccine on Day 21 and saline placebo on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm.
Flulaval/Arepanrix/placebo GroupEXPERIMENTALsubjects received co-administration of Flulaval vaccine and Arepanrix vaccine on Day 0 followed by Arepanrix vaccine on Day 21 and saline placebo on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm.
Unadjuvanted Arepanrix/placebo/Flulaval GroupEXPERIMENTALsubjects received co-administration of the unadjuvanted formulation of Arepanrix vaccine and saline placebo on Day 0 followed by the unadjuvanted formulation of Arepanrix vaccine on Day 21 and Flulaval vaccine on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm.
Arepanrix/placebo/Flulaval GroupEXPERIMENTALsubjects received co-administration of Arepanrix vaccine and saline placebo on Day 0 followed by Arepanrix vaccine on Day 21 and Flulaval vaccine on Day 42. All vaccines were administered intramuscularly in the deltoids of the dominant or non dominant arm. At Day 0 the two vaccines were administered each in a separate arm, at Day 21 in the dominant arm and at Day 42 in the non-dominant arm.
Interventions
NameTypeDescription
GSK2340274ABIOLOGICALOne intramuscular injection
GSK2340273ABIOLOGICALOne intramuscular injection
Saline placeboBIOLOGICALOne injection
Seasonal trivalent influenza vaccine (TIV)BIOLOGICALSingle intramuscular injection
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersYes
Study Sites38

Inclusion Criteria: * Subjects who the investigator believes can and will comply with the requirements of the protocol. * Written informed consent obtained from the subject. * Male and female adults, \>= 18 years of age at the time of the first vaccination. * Satisfactory baseline medical assessmen...

Countries:United StatesCanada
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