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V540D

Phase 1

Healthy | Monoclonal antibody | Other |Merck & Company, Inc.|Last Updated: Mar 13, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment72

FDA Designations

No designations recorded

Clinical trial landscape

V540D · 1 trial · 1 indication

Phase 1 1
NCT06688058A Trial to Evaluate Tolerability and Immunogenicity of V540D in Healthy Adults (V540D-004)Healthy
ACTIVE NOT_RECRUITING72 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Trial to Evaluate Tolerability and Immunogenicity of V540D in Healthy Adults (V540D-004)
HealthyUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants Who Experience a Solicited Injection-Site Adverse Event (AE)
Up to approximately 6 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

Number of Participants Who Experience a Solicited Systemic AE
Up to approximately 6 months

Solicited systemic AEs include headache, fatigue, nausea, dizziness, muscle aches, joint pain.

Number of Participants Who Experience Immediate Reactions Occurring Within 30 Minutes After Any Vaccination
Up to approximately 6 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

Number of Participants Who Experience Unsolicited AEs
Up to approximately 7 months

An unsolicited AE is an event that is not predefined as a solicited AE or is predefined as a solicited AE but reported at any time outside the solicited time period.

Number of Participants Who Experience a Serious Adverse Event (SAE)
Up to approximately 18 months

SAEs include AEs that result in any of the following outcomes: death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, a persistent or significant incapacity or substantial disruption of the ability to conduct normal functions, or a congenital anomaly/birth defect.

Number of Participants Who Experience a Medically-Attended AE (MAAE)
Up to approximately 18 months

AEs in which medical attention is received during an unscheduled, non-routine outpatient visit, such as an emergency department visit, office visit, or an urgent care visit with any medical personnel for any reason. Routine visits are not considered MAAEs. Examples of routine visits include physical examination, wellness visits, or vaccinations.

Number of Participants Who Experience an Event of Clinical Interest (ECI)
Up to approximately 18 months

ECIs are defined as an overdose of Sponsor's product, drug-induced liver injury events, or potential immune-mediated diseases (pIMDs).

Secondary Endpoints

Total Immunoglobulin G (IgG) Geometric Mean Ratios (GMRs) for anti-HPV types 6, 11, 16, 18, 31, 33, 45, 52, and 58
Up to approximately 7 months
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
V540DEXPERIMENTALParticipants will receive vaccinations with V540D.
GARDASIL®9ACTIVE_COMPARATORParticipants will receive vaccinations with GARDASIL®9.

Interventions

NameTypeDescription
V540DBIOLOGICALExperimental vaccine and adjuvant administered via intramuscular (IM) injection
GARDASIL®9BIOLOGICALSuspension administered via IM injection
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Eligibility Criteria

Age Range18 Years to 45 Years
SexALL
Healthy VolunteersYes
Study Sites4

Inclusion Criteria: The key inclusion criteria include but are not limited to the following: * Is in good health based on medical history, physical examination, vital sign (VS) measurements and electrocardiograms (ECGs) performed before randomization Exclusion Criteria: The key exclusion criteri...

Countries:United States
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Frequently asked questions about V540D

What is V540D used for?

V540D is an investigational monoclonal antibody being studied in healthy adults. It is currently in Phase 1 clinical development, with a trial evaluating its tolerability and immunogenicity. The drug is not approved for any condition and remains under investigation.

Who makes V540D?

V540D is being developed by Merck & Company, Inc., which trades under the ticker MRK. The company is conducting a Phase 1 clinical trial to evaluate the drug's tolerability and immunogenicity in healthy adults.

What phase is V540D in?

V540D is in Phase 1 clinical development. It is an investigational monoclonal antibody being studied in a single active trial that is not yet recruiting participants. The drug has not been approved by regulatory authorities and remains in early-stage testing.

What clinical trials is V540D in?

V540D is being evaluated in one clinical trial, NCT06688058, titled 'A Trial to Evaluate Tolerability and Immunogenicity of V540D in Healthy Adults (V540D-004).' This Phase 1 study is active but not recruiting, with an enrollment of 72 participants in the United States.

Is V540D FDA approved?

V540D is not FDA approved. It is an investigational drug currently in Phase 1 clinical trials, meaning it has not yet been evaluated for safety and efficacy in large patient populations. The drug remains in early-stage development and is not available for clinical use.