A Trial to Evaluate Tolerability and Immunogenicity of V540D in Healthy Adults (V540D-004)

March 12, 2026 updated by: Merck Sharp & Dohme LLC

A Phase 1, Randomized, Double-Blind, Comparator-Controlled, Dose-Escalation Trial to Evaluate, Tolerability, and Immunogenicity of V540D in Healthy Adults.

Researchers are looking for new ways to prevent cancers related to human papillomavirus (HPV). HPV is a common virus that can cause an infection. There are many different types of HPV. Most people's immune system can fight HPV infection and it goes away without treatment. For some people, HPV infections can last longer and may cause cancer years later.

A standard vaccine to prevent HPV-related cancers is GARDASIL®9 (G9). G9 protects against 9 types of HPV but it does not protect against other types of HPV. The study vaccine (called V540D) is designed to protect against the same HPV types that G9 protects against plus other HPV types. The main goal of this study is to learn about the safety of V540D in healthy adults and if people tolerate it.

Study Overview

Status

Active, not recruiting

Conditions

Study Type

Interventional

Enrollment (Estimated)

72

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Florida
      • Hollywood, Florida, United States, 33024
        • Research Centers of America ( Hollywood ) ( Site 0001)
    • Georgia
      • Savannah, Georgia, United States, 31406
        • Velocity Clinical Research, Savannah ( Site 0005)
    • Missouri
      • Kansas City, Missouri, United States, 64114
        • Alliance for Multispecialty Research, LLC ( Site 0003)
    • Tennessee
      • Knoxville, Tennessee, United States, 37920
        • Alliance for Multispecialty Research, LLC ( Site 0004)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

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 criteria include but are not limited to the following:

  • Has a history of abnormal Pap smears, HPV- related external genital lesions (eg, condyloma acuminate, vulval intraepithelial neoplasia (VIN), or prostatic intraepithelial neoplasia (PIN)) or external genital cancer (eg, penile cancer), HPV-related vaginal or anal lesions (eg, condyloma acuminata or vaginal intraepithelial neoplasia (VaIN)) or vaginal or anal cancer
  • Has a history of cancer (malignancy)
  • Has received any HPV vaccine or is expected to receive any HPV vaccine during the study, outside the protocol

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: V540D
Participants will receive vaccinations with V540D.
Experimental vaccine and adjuvant administered via intramuscular (IM) injection
Active Comparator: GARDASIL®9
Participants will receive vaccinations with GARDASIL®9.
Suspension administered via IM injection
Other Names:
  • V503
  • G9

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Who Experience a Solicited Injection-Site Adverse Event (AE)
Time Frame: 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.
Up to approximately 6 months
Number of Participants Who Experience a Solicited Systemic AE
Time Frame: Up to approximately 6 months
Solicited systemic AEs include headache, fatigue, nausea, dizziness, muscle aches, joint pain.
Up to approximately 6 months
Number of Participants Who Experience Immediate Reactions Occurring Within 30 Minutes After Any Vaccination
Time Frame: 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.
Up to approximately 6 months
Number of Participants Who Experience Unsolicited AEs
Time Frame: 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.
Up to approximately 7 months
Number of Participants Who Experience a Serious Adverse Event (SAE)
Time Frame: 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.
Up to approximately 18 months
Number of Participants Who Experience a Medically-Attended AE (MAAE)
Time Frame: 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.
Up to approximately 18 months
Number of Participants Who Experience an Event of Clinical Interest (ECI)
Time Frame: 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).
Up to approximately 18 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total Immunoglobulin G (IgG) Geometric Mean Ratios (GMRs) for anti-HPV types 6, 11, 16, 18, 31, 33, 45, 52, and 58
Time Frame: Up to approximately 7 months
GMR of titers for participants vaccinated with V540D versus those who received GARDASIL®9 alone will be calculated.
Up to approximately 7 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Medical Director, Merck Sharp & Dohme LLC

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 20, 2024

Primary Completion (Estimated)

November 30, 2026

Study Completion (Estimated)

November 30, 2026

Study Registration Dates

First Submitted

November 12, 2024

First Submitted That Met QC Criteria

November 12, 2024

First Posted (Actual)

November 14, 2024

Study Record Updates

Last Update Posted (Actual)

March 13, 2026

Last Update Submitted That Met QC Criteria

March 12, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • V540D-004

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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