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Meningococcal vaccine GSK134612

Phase 3

Infections, Meningococcal | Monoclonal antibody | Infectious Disease |Pfizer, Inc.|Last Updated: Oct 5, 2021

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials3
Total Enrollment1,357

FDA Designations

No designations recorded

Clinical trial landscape

Meningococcal vaccine GSK134612 · 3 trials · 1 indication

Phase 3 3
NCT01934140Study to Evaluate the Long-term Antibody Persistence of GlaxoSmithKline (GSK) Biologicals' MenACWY-TT Vaccine (GSK134612) Versus Mencevax ACWY in Healthy Adolescents and Adults and Booster Response to MenACWY-TT Vaccine Administered at 10 Years Post-primary VaccinationInfections, Meningococcal
COMPLETED311 Analytics
NCT01939158Immunogenicity and Safety Study of 1 and 2 Doses of GlaxoSmithKline (GSK) Biologicals' Meningococcal Vaccine MenACWY-TT (GSK134612) in Toddlers, Persistence up to 5 Years After Vaccination and Co-administration With Pfizer's Prevenar 13™VaccineInfections, Meningococcal
COMPLETED803 Analytics
NCT01962207The Long-term Antibody Persistence of MenACWY-TT Vaccine (PF-06866681) Versus Meningitec(Registered) or Mencevax(Registered) ACWY in Healthy Adolescents and Adults and a Booster Dose of MenACWY-TT Administered 10 Years Post Primary VaccinationInfections, Meningococcal
COMPLETED243 Analytics
PHASE3COMPLETED
Study to Evaluate the Long-term Antibody Persistence of GlaxoSmithKline (GSK) Biologicals' MenACWY-TT Vaccine (GSK134612) Versus Mencevax ACWY in Healthy Adolescents and Adults and Booster Response to MenACWY-TT Vaccine Administered at 10 Years Post-primary Vaccination
Infections, MeningococcalUnlock trial analytics
PHASE3COMPLETED
Immunogenicity and Safety Study of 1 and 2 Doses of GlaxoSmithKline (GSK) Biologicals' Meningococcal Vaccine MenACWY-TT (GSK134612) in Toddlers, Persistence up to 5 Years After Vaccination and Co-administration With Pfizer's Prevenar 13™Vaccine
Infections, MeningococcalUnlock trial analytics
PHASE3COMPLETED
The Long-term Antibody Persistence of MenACWY-TT Vaccine (PF-06866681) Versus Meningitec(Registered) or Mencevax(Registered) ACWY in Healthy Adolescents and Adults and a Booster Dose of MenACWY-TT Administered 10 Years Post Primary Vaccination
Infections, MeningococcalUnlock trial analytics

Study Endpoints

Primary Endpoints

Persistence Phase: Percentage of Participants With Serum Bactericidal Assay Using Rabbit Complement (rSBA) Titers Greater Than or Equal to (>=) 1:8 and >=1:128 For Each of the 4 Serogroups After 6 Years of Primary Vaccination
After 6 years of primary vaccination

Serogroups included neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY).

Persistence Phase: Percentage of Participants With rSBA Titers >= 1:8 and >=1:128 For Each of the 4 Serogroups After 7 Years of Primary Vaccination
After 7 years of primary vaccination

Serogroups included MenA, MenC, MenW-135 and MenY.

Persistence Phase: Percentage of Participants With rSBA Titers >= 1:8 and >=1:128 For Each of the 4 Serogroups After 8 Years of Primary Vaccination
After 8 years of primary vaccination

Serogroups included MenA, MenC, MenW-135 and MenY.

Persistence Phase: Percentage of Participants With rSBA Titers >= 1:8 and >=1:128 For Each of the 4 Serogroups After 9 Years of Primary Vaccination
After 9 years of primary vaccination

Serogroups included MenA, MenC, MenW-135 and MenY.

Persistence Phase: Percentage of Participants With rSBA Titers >= 1:8 and >=1:128 For Each of the 4 Serogroups After 10 Years of Primary Vaccination
After 10 years of primary vaccination

Serogroups included MenA, MenC, MenW-135 and MenY.

Persistence Phase: Geometric Mean Titers With rSBA for Each of the 4 Serogroups After 6 Years of Primary Vaccination
After 6 years of primary vaccination

Serogroups included MenA, MenC, MenW-135 and MenY. rSBA titers expressed as the reciprocal of the highest serum last dilution resulting in at least 50 percentage (%) reduction of meningococcal colony-forming units.

Persistence Phase: Geometric Mean Titers With rSBA for Each of the 4 Serogroups After 7 Years of Primary Vaccination
After 7 years of primary vaccination

Serogroups included MenA, MenC, MenW-135 and MenY. rSBA titers expressed as the reciprocal of the highest serum last dilution resulting in at least 50 % reduction of meningococcal colony-forming units.

Persistence Phase: Geometric Mean Titers With rSBA for Each of the 4 Serogroups After 8 Years of Primary Vaccination
After 8 years of primary vaccination

Serogroups included MenA, MenC, MenW-135 and MenY. rSBA titers expressed as the reciprocal of the highest serum last dilution resulting in at least 50 % reduction of meningococcal colony-forming units.

Persistence Phase: Geometric Mean Titers With rSBA for Each of the 4 Serogroups After 9 Years of Primary Vaccination
After 9 years of primary vaccination

Serogroups included MenA, MenC, MenW-135 and MenY. rSBA titers expressed as the reciprocal of the highest serum last dilution resulting in at least 50 % reduction of meningococcal colony-forming units.

Persistence Phase: Geometric Mean Titers With rSBA for Each of the 4 Serogroups After 10 Years of Primary Vaccination
After 10 years of primary vaccination

Serogroups included MenA, MenC, MenW-135 and MenY. rSBA titers expressed as the reciprocal of the highest serum last dilution resulting in at least 50 % reduction of meningococcal colony-forming units.

Percentage of Participants With Serum Bactericidal Assay Using Rabbit Complement Antibody (rSBA) Titers >=1:8 at 1 Month After Administration of 1 Dose of MenACWY-TT in the ACWY1d, ACWY2d and Co-ad Groups
1 month after administration of 1st dose of MenACWY-TT (i.e. at Month 1)

Serogroups included neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY). Percentage of participants with rSBA titers \>=1:8 against each serogroup at 1 month after administration of MenACWY-TT are reported. According-to-protocol (ATP) cohort for persistence Year 1 population included all participants who met all eligibility criteria, received complete primary vaccination series, had assay results available for at least 1 antigen tested, complied with procedures and intervals in protocol, did not present with a medical condition or received product leading to exclusion or were non-compliant with protocol-defined serum sampling windows or lack of availability of immunogenicity results at the previous time point.

Percentage of Participants With rSBA Titers >=1:8 at 1 Month After Administration of 2 Doses of MenACWY-TT in the ACWY2d Group
1 month after administration of 2nd dose of MenACWY-TT (i.e. at Month 3)

Serogroups included neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY). Percentage of participants with rSBA titers \>=1:8 against each serogroup at 1 month after administration of 2 doses of MenACWY-TT are reported. ATP cohort for persistence Year 1 included all participants who met eligibility criteria, received complete primary vaccination series, had assay results available for at least 1 antigen tested, complied with procedures and intervals in protocol, did not present medical condition, received product or were non-compliant with protocol-defined serum sampling windows or lack of availability of immunogenicity results at the previous time point.

Percentage of Participants With rSBA Titers >=1:8 and >=1:128 at Year 1 in the ACWY1d and ACWY2d Groups
At Year 1

Serogroups included neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY). Percentage of participants with rSBA titers \>=1:8 and \>=1:128 against each serogroup at Year 1 after administration of MenACWY-TT are reported. ATP cohort for persistence Year 1 included all participants who met eligibility criteria, received complete primary vaccination series, had assay results available for at least 1 antigen tested, complied with procedures and intervals in protocol, did not present medical condition, received product or were non-compliant with protocol-defined serum sampling windows or lack of availability of immunogenicity results at the previous time point.

Geometric Mean Titers (GMTs) With rSBA for Each of the 4 Serogroups Following Vaccination at Year 1 in the ACWY1d and ACWY2d Groups
At Year 1

Geometric mean titers of antibodies against each serogroup were assessed using rSBA. Serogroups included neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY). rSBA titers are expressed as 1/dilution. ATP cohort for persistence Year 1 included all participants who met eligibility criteria, received complete primary vaccination series, had assay results available for at least 1 antigen tested, complied with procedures and intervals in protocol, did not present medical condition, received product or were non-compliant with protocol-defined serum sampling windows or lack of availability of immunogenicity results at the previous time point.

Percentage of Participants With rSBA Titers >=1:8 and >=1:128 at Year 3 in the ACWY1d and ACWY2d Groups
At Year 3

Serogroups included neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY). Percentage of participants with rSBA titers \>=1:8 and \>=1:128 against each serogroup at Year 3 after administration of MenACWY-TT are reported. ATP cohort for persistence Year 3 included all participants who met eligibility criteria, received complete primary vaccination series, had assay results available for at least 1 antigen tested, complied with procedures and intervals in protocol, did not present medical condition, received product or were non-compliant with protocol-defined serum sampling windows or lack of availability of immunogenicity results at the previous time point.

Geometric Mean Titers (GMTs) With rSBA for Each of the 4 Serogroups Following Vaccination at Year 3 in the ACWY1d and ACWY2d Groups
At Year 3

Geometric mean titers of antibodies against each serogroup were assessed using rSBA. Serogroups included neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY). rSBA titers are expressed as 1/dilution. ATP cohort for persistence Year 3 included all participants who met eligibility criteria, received complete primary vaccination series, had assay results available for at least 1 antigen tested, complied with procedures and intervals in protocol, did not present medical condition, received product or were non-compliant with protocol-defined serum sampling windows or lack of availability of immunogenicity results at the previous time point.

Percentage of Participants With rSBA Titers >=1:8 and >=1:128 at Year 5 in the ACWY1d and ACWY2d Groups
At Year 5

Serogroups included neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY). Percentage of participants with rSBA titers \>=1:8 and \>=1:128 against each serogroup at Year 5 after administration of MenACWY-TT are reported. ATP cohort for persistence Year 5 included all participants who met eligibility criteria, received complete primary vaccination series, had assay results available for at least 1 antigen tested, complied with procedures and intervals in protocol, did not present medical condition, received product or were non-compliant with protocol-defined serum sampling windows or lack of availability of immunogenicity results at the previous time point.

Geometric Mean Titers (GMTs) With rSBA for Each of the 4 Serogroups Following Vaccination at Year 5 in the ACWY1d and ACWY2d Groups
At Year 5

Geometric mean titers of antibodies against each serogroup were assessed using rSBA. Serogroups included neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY). rSBA titers are expressed as 1/dilution. ATP cohort for persistence Year 5 included all participants who met eligibility criteria, received complete primary vaccination series, had assay results available for at least 1 antigen tested, complied with procedures and intervals in protocol, did not present medical condition, received product or were non-compliant with protocol-defined serum sampling windows or lack of availability of immunogenicity results at the previous time point.

Geometric Mean Concentrations (GMCs) of Antibodies for Each of the Anti-pneumococcal Serotypes at 1 Month After Administration of Prevnar 13 in the Co-ad and PCV-13 Groups
1 month after administration of Prevnar 13 (i.e. at Month 1)

GMCs for anti-pneumococcal antibodies (anti-1, anti-3, anti-4, anti-5, anti-6A, anti-6B, anti-7F, anti-9V, anti-14, anti-18C, anti-19A, anti-19F and anti-23F) were measured in microgram per milliliter (mcg/mL). ATP cohort for immunogenicity post dose 1 included all evaluable participants who met eligibility criteria, complied with the procedures defined in the protocol and with no elimination criteria during the study from the ATP cohort for safety, received all study vaccines at Month 0, had assay results available for antibodies against at least one study vaccine antigen component at Visit 2 (Month 1), and had available blood sample at Visit 2 (Month 1) for PCV13 group.

Persistence Phase: Percentage of Participants With Serum Bactericidal Assay Using Rabbit Complement (rSBA) Titers >=1:8 and >=1:128 For Each of the 4 Serogroups After 6 Years of Primary Vaccination
6 years after primary vaccination (Year 1 of study MENACWY-TT-100)

Serogroups included Neisseria meningitidis serogroup A (MenA), Neisseria meningitidis serogroup C (MenC), Neisseria meningitidis serogroup W-135 (MenW-135) and Neisseria meningitidis serogroup Y (MenY).

Persistence Phase: Geometric Mean Titers as Measured by rSBA for Each of the 4 Serogroups After 6 Years of Primary Vaccination
6 Years after primary vaccination (Year 1 of study MENACWY-TT-100)

Serogroups included MenA, MenC, MenW-135 and MenY.

Persistence Phase: Geometric Mean Titers as Measured by rSBA for Each of the 4 Serogroups After 7 Years of Primary Vaccination
7 years after primary vaccination (Year 2 of study MENACWY-TT-100)

Serogroups included MenA, MenC, MenW-135 and MenY.

Persistence Phase: Geometric Mean Titers as Measured by rSBA for Each of the 4 Serogroups After 8 Years of Primary Vaccination
8 years after primary vaccination (Year 3 of study MENACWY-TT-100)

Serogroups included MenA, MenC, MenW-135 and MenY.

Persistence Phase: Geometric Mean Titers as Measured by rSBA for Each of the 4 Serogroups After 9 Years of Primary Vaccination
9 years after primary vaccination (Year 4 of study MENACWY-TT-100)

Serogroups included MenA, MenC, MenW-135 and MenY.

Persistence Phase: Geometric Mean Titers as Measured by rSBA for Each of the 4 Serogroups After 10 Years of Primary Vaccination
10 years after primary vaccination (Year 5 of study MENACWY-TT-100)

Serogroups included MenA, MenC, MenW-135 and MenY.

Secondary Endpoints

Booster Phase: Percentage of Participants With rSBA Titers >=1:8 and >=1:128 For Each of the 4 Serogroups at 1 Month After Booster Vaccination
1 month after booster vaccination
Booster Phase: Geometric Mean Titers With rSBA for Each of the 4 Serogroups at 1 Month After Booster Vaccination
1 month after booster vaccination
Booster Phase: Percentage of Participants With rSBA Booster Response at 1 Month After Booster Vaccination
1 month after booster vaccination
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
ACWY-TT groupEXPERIMENTALAll subjects vaccinated with MenACWY-TT in study MENACWY-TT-015 will be assigned to this group. At Month 120 after primary vaccination, these subjects will be vaccinated with a booster dose of MenACWY-TT in this study.
MenPS groupACTIVE_COMPARATORAll subjects vaccinated with Mencevax ACWY in study MENACWY-TT-015 will be assigned to this group. At Month 120 after primary vaccination, these subjects will be vaccinated with a dose of MenACWY-TT in this study.
ACWY1d groupEXPERIMENTALSubjects will receive 1 dose of the MenACWY-TT vaccine
ACWY2d groupEXPERIMENTALSubjects will receive 2 doses of the MenACWY-TT vaccine 2 months apart
Co-ad groupEXPERIMENTALSubjects will receive 1 dose of the MenACWY-TT vaccine co-administered with Prevenar 13™
PCV-13 groupACTIVE_COMPARATORSubjects will receive 1 dose of Prevenar 13™ and 1 dose of the MenACWY-TT vaccine 2 months later
ACWY<2 GroupEXPERIMENTALSubjects will receive a dose of MenACWY-TT 10 years after primary vaccination with MenACWY-TT.
ACWY≥2 GroupEXPERIMENTALSubjects will receive a dose of MenACWY-TT 10 years after primary vaccination with MenACWY-TT.
MenCCRM GroupEXPERIMENTALSubjects will receive a dose of MenACWY-TT 10 years after primary vaccination with Meningitec.

Interventions

NameTypeDescription
Meningococcal vaccine GSK134612BIOLOGICAL1 dose administered intramuscularly in the non-dominant deltoid region.
Prevenar 13™BIOLOGICAL1 dose administered intramuscularly in the right anterolateral thigh or deltoid region
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Eligibility Criteria

Age Range17 Years to 66 Years
SexALL
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: All subjects must satisfy the following criteria at study entry to the persistence phase: * Subjects who, in the opinion of the investigator, can and will comply with the requirements of the protocol. Or /and subjects' parent(s)/Legally Acceptable Representative(s) \[LAR(s)\] w...

Countries:PhilippinesAustraliaCanadaCzechiaPanamaSouth AfricaTurkey (Türkiye)Finland
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Frequently asked questions about Meningococcal vaccine GSK134612

What is Meningococcal vaccine GSK134612 used for?

Meningococcal vaccine GSK134612 is an investigational vaccine used for the prevention of meningococcal infections. It is being developed for use in healthy adolescents, adults, and toddlers to provide protection against meningococcal disease. The vaccine is currently in Phase 3 clinical development and is not yet approved by regulatory authorities.

Who makes Meningococcal vaccine GSK134612?

Meningococcal vaccine GSK134612 is being developed by Pfizer, Inc. (NYSE: PFE). The vaccine was originally developed by GlaxoSmithKline (GSK) Biologicals, as indicated in the clinical trial titles, but Pfizer is listed as the developer of the asset.

What phase is Meningococcal vaccine GSK134612 in?

Meningococcal vaccine GSK134612 is in Phase 3 clinical development. All three clinical trials for the vaccine have been completed, with a total enrollment of 1,357 participants. The vaccine is investigational and has not been approved by the FDA or other regulatory agencies.

What clinical trials is Meningococcal vaccine GSK134612 in?

Meningococcal vaccine GSK134612 has been studied in three completed Phase 3 clinical trials: NCT01934140, NCT01939158, and NCT01962207. These trials evaluated the vaccine's immunogenicity, safety, and long-term antibody persistence in healthy adolescents, adults, and toddlers across multiple countries including the Philippines, Australia, Canada, Czechia, Panama, South Africa, Turkey, and Finland.

Is Meningococcal vaccine GSK134612 the same as PF-06866681?

Yes, Meningococcal vaccine GSK134612 is also known as PF-06866681. In the clinical trial NCT01962207, the vaccine is referred to as MenACWY-TT Vaccine (PF-06866681), confirming that these names refer to the same investigational meningococcal vaccine.