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MenACWY-TT

Phase 3

Meningococcal ACWY Disease | Monoclonal antibody | Infectious Disease |Pfizer, Inc.|Last Updated: Oct 12, 2020

Success Probability

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Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment229

FDA Designations

No designations recorded

Clinical trial landscape

MenACWY-TT · 1 trial · 1 indication

Phase 3 1
NCT03189745A Study To Evaluate A Booster Dose Of Menacwy-tt Vaccine Administered 10 Years After Healthy Subjects Aged 11-17 Years Received Either Menacwy-tt Vaccine (Nimenrix(Registered)) Or Mencevax Acwy(Registered).Meningococcal ACWY Disease
COMPLETED229 Analytics
PHASE3COMPLETED
A Study To Evaluate A Booster Dose Of Menacwy-tt Vaccine Administered 10 Years After Healthy Subjects Aged 11-17 Years Received Either Menacwy-tt Vaccine (Nimenrix(Registered)) Or Mencevax Acwy(Registered).
Meningococcal ACWY DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With Booster Response in Terms of Serum Bactericidal Assay Using Rabbit Complement (rSBA) Titer Levels at 1 Month After Booster Vaccination
1 month after booster 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). The rSBA titer levels greater than or equal to (\>=) 1:32 for initially seronegative participants and at least four-fold increase in rSBA titer levels for initially seropositive participants, 1 month after booster vaccination were defined as booster response to meningococcal antigens and reported in this outcome measure. Initially seronegative participants were defined as participants with pre-vaccination rSBA titer levels below 1:8 and initially seropositive participants were defined as participants with pre-vaccination rSBA titer \>=1:8. Data reported below is including both seropositive and seronegative participants.

Secondary Endpoints

Percentage of Participants With rSBA Titer Levels >=1:8 and >=1:128 for Each of the 4 Serogroups Before Booster Vaccination and 1 Month After Booster Vaccination
Before booster vaccination, 1 month after booster vaccination (Vac)
rSBA Geometric Mean Titers for Each of the 4 Serogroups Before Booster Vaccination and 1 Month After Booster Vaccination
Before booster vaccination, 1 month after booster vaccination
Percentage of Participants With Anti-Tetanus Toxoid (Anti-TT) Concentrations >=0.1 International Units Per Millilitre (IU/mL), >=1.0 IU/mL Before Booster Vaccination and 1 Month After Booster Vaccination
Before booster vaccination, 1 month after booster vaccination
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Study Design & Arms

AllocationNA
MaskingNONE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
MenACWY-TT BoosterEXPERIMENTAL10 year booster dose of MenACWY

Interventions

NameTypeDescription
MenACWY-TTBIOLOGICALSingle dose of MenACWY-TT given 10 years after first vaccine with either MenACWY-TT or Mencevax ACWY
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Eligibility Criteria

Age Range20 Years to 28 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Subjects who, in the opinion of the investigator, can and will comply, with the requirements of the protocol (e.g. completion of the diary cards, return for follow-up visits). * Written informed consent obtained from the subject prior to performing any study specific procedure...

Countries:Philippines
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Frequently asked questions about MenACWY-TT

What is MenACWY-TT used for?

MenACWY-TT is an investigational vaccine being studied for the prevention of Meningococcal ACWY Disease, a bacterial infection caused by Neisseria meningitidis serogroups A, C, W, and Y. It is being developed by Pfizer, Inc. (PFE) and is currently in Phase 3 clinical development.

What does MenACWY-TT target?

MenACWY-TT targets the bacterial pathogen Neisseria meningitidis, specifically serogroups A, C, W, and Y. The vaccine is designed to elicit an immune response against these four serogroups, which are common causes of meningococcal disease.

Who makes MenACWY-TT?

MenACWY-TT is being developed by Pfizer, Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol PFE. The vaccine is currently in Phase 3 clinical trials for the prevention of Meningococcal ACWY Disease.

What phase is MenACWY-TT in?

MenACWY-TT is in Phase 3 clinical development. It is an investigational vaccine and has not been approved by regulatory authorities. One Phase 3 trial has been completed, and the vaccine is being evaluated for its safety and immunogenicity as a booster dose.

What clinical trials is MenACWY-TT in?

MenACWY-TT has been studied in one completed Phase 3 clinical trial, identified as NCT03189745. This trial evaluated a booster dose of MenACWY-TT administered 10 years after initial vaccination in healthy adults aged 20 years and older in the Philippines. The trial enrolled 229 participants.

Is MenACWY-TT the same as Nimenrix?

MenACWY-TT is the vaccine candidate being studied in clinical trials, and it is also known as Nimenrix. In the Phase 3 trial NCT03189745, the vaccine was referred to as MenACWY-TT (Nimenrix), indicating that these names refer to the same vaccine product.