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V181 High-Potency Level

Phase 2

Dengue Disease | Monoclonal antibody | Infectious Disease |Merck & Company, Inc.|Last Updated: May 9, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment1,271

FDA Designations

No designations recorded

Clinical trial landscape

V181 High-Potency Level · 1 trial · 2 indications

Phase 2 1
NCT05507450Safety and Immunogenicity of Three V181 Dengue Vaccine Potencies in Adults (V181-003)Dengue Disease
COMPLETED1,271 Analytics
PHASE2COMPLETED
Safety and Immunogenicity of Three V181 Dengue Vaccine Potencies in Adults (V181-003)
Dengue DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Dengue Virus-Neutralizing Antibody Titers, as Measured by Virus Reduction Neutralization Test (VRNT)
Day 28 post-vaccination

A dengue VRNT was conducted to assess neutralizing antibody Geometric Mean Titers (GMTs) for each of the 4 dengue vaccine serotypes (DENV1, DENV2, DENV3, and DENV4) in specimens collected from participants on Day 28 post-vaccination.

Percentage of Participants With Vaccine-Related Serious Adverse Events (SAEs)
Up to 28 days post-vaccination

An SAE is an AE that results in death, is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. Relatedness of an SAE to the study vaccine will be determined by the investigator.

Secondary Endpoints

Percentage of Participants With Solicited Injection-Site Adverse Events (AEs)
Up to 5 days post-vaccination
Percentage of Participants With Solicited Systemic AEs
Up to 28 days post-vaccination
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
V181 High-Potency Level GroupEXPERIMENTALParticipants will receive a single 0.5mL subcutaneous (SC) dose of V181 High-Potency vaccine.
V181 Mid-Potency Level GroupEXPERIMENTALParticipants will receive a single 0.5mL SC dose of V181 Mid-Potency vaccine.
V181 Low-Potency Level GroupEXPERIMENTALParticipants will receive a single 0.5mL SC dose of V181 Low-Potency vaccine.
PlaceboPLACEBO_COMPARATORParticipants will receive a single SC 0.5 mL dose of placebo.

Interventions

NameTypeDescription
V181 High-Potency LevelBIOLOGICAL0.5 mL SC dose of V181 High-Potency vaccine
V181 Mid-Potency LevelBIOLOGICAL0.5 mL SC dose of V181 Mid-Potency vaccine
V181 Low-Potency LevelBIOLOGICAL0.5 mL SC dose of V181 Low-Potency vaccine
PlaceboBIOLOGICAL0.5 mL SC dose of placebo
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Eligibility Criteria

Age Range18 Years to 50 Years
SexALL
Healthy VolunteersYes
Study Sites32

Inclusion Criteria: * Male participants are eligible to participate if they agree to the following for at least 90 days after administration of study intervention: Abstain from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis) and agree ...

Countries:United StatesAustraliaCanadaFinlandGermanyIsraelTaiwan
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Frequently asked questions about V181 High-Potency Level

What is V181 High-Potency Level used for in Dengue Disease?

V181 High-Potency Level is an investigational monoclonal antibody being developed for the prevention of Dengue Disease. It is currently in Phase 2 clinical development. The drug is being studied for its safety and immunogenicity in adults, as part of a placebo-controlled trial.

What does V181 High-Potency Level target?

V181 High-Potency Level is a monoclonal antibody designed to target the dengue virus. As an antibody-based therapy, it is intended to provide protection against dengue infection. The specific molecular target is not disclosed in the available information.

Who makes V181 High-Potency Level?

V181 High-Potency Level is being developed by Merck & Company, Inc., a pharmaceutical company traded on the New York Stock Exchange under the ticker symbol MRK. The company is conducting clinical trials to evaluate the drug's safety and immunogenicity for dengue prevention.

What phase is V181 High-Potency Level in?

V181 High-Potency Level is in Phase 2 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The drug is being studied in a completed Phase 2 trial that assessed its safety and immunogenicity in adults.

What clinical trials is V181 High-Potency Level in?

V181 High-Potency Level has one completed Phase 2 clinical trial registered under NCT05507450, titled 'Safety and Immunogenicity of Three V181 Dengue Vaccine Potencies in Adults (V181-003)'. This randomized, double-blind, placebo-controlled trial enrolled 1,271 participants across multiple countries.

Is V181 High-Potency Level the same as V181?

V181 High-Potency Level is a specific potency formulation of the V181 dengue vaccine candidate. The clinical trial NCT05507450 evaluated three different potencies of V181, with the high-potency level being one of them. All are being developed by Merck & Company.