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HealthyPhase 1NCT06688058

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

A Phase 1 study testing V540D and GARDASIL®9 in people with Healthy, run by Merck Sharp & Dohme LLC at 4 sites in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
V540D and GARDASIL®9
Could I receive a placebo?
No, everyone receives an active treatment
How many people
72 participants
Where
4 sitesUnited States
Study dates
20 Dec 2024to 30 Nov 2026
Phase
Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 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

Who cannot join

  • 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

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • Research Centers of America ( Hollywood ) ( Site 0001)

    Hollywood, Florida, 33024

  • Alliance for Multispecialty Research, LLC ( Site 0003)

    Kansas City, Missouri, 64114

  • Alliance for Multispecialty Research, LLC ( Site 0004)

    Knoxville, Tennessee, 37920

  • Velocity Clinical Research, Savannah ( Site 0005)

    Savannah, Georgia, 31406

Other trials in United States

About this study

Official title: 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.

Conditions
Healthy
Being tested
V540D, GARDASIL®9

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • V540DBiological

    Experimental vaccine and adjuvant administered via intramuscular (IM) injection

  • GARDASIL®9Biological

    Also called G9, V503

    Suspension administered via IM injection

Study groups in NCT06688058
Study groupRoleWhat they receive
V540DExperimentalParticipants will receive vaccinations with V540D.
Receives: Biological: V540D
GARDASIL®9Active comparatorParticipants will receive vaccinations with GARDASIL®9.
Receives: Biological: GARDASIL®9

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants Who Experience a Solicited Injection-Site Adverse Event (AE)

    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.

    Measured: Up to approximately 6 months

  2. Number of Participants Who Experience a Solicited Systemic AE

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

    Measured: Up to approximately 6 months

  3. Number of Participants Who Experience Immediate Reactions Occurring Within 30 Minutes After Any Vaccination

    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.

    Measured: Up to approximately 6 months

  4. Number of Participants Who Experience Unsolicited AEs

    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.

    Measured: Up to approximately 7 months

  5. Number of Participants Who Experience a Serious Adverse Event (SAE)

    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.

    Measured: Up to approximately 18 months

  6. Number of Participants Who Experience a Medically-Attended AE (MAAE)

    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.

    Measured: Up to approximately 18 months

  7. Number of Participants Who Experience an Event of Clinical Interest (ECI)

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

    Measured: Up to approximately 18 months

Secondary outcomes (1)
  1. Total Immunoglobulin G (IgG) Geometric Mean Ratios (GMRs) for anti-HPV types 6, 11, 16, 18, 31, 33, 45, 52, and 58

    GMR of titers for participants vaccinated with V540D versus those who received GARDASIL®9 alone will be calculated.

    Measured: Up to approximately 7 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Nov 2024
  2. Study start20 Dec 2024
  3. Primary completion30 Nov 2026 (estimated)
  4. Study completion30 Nov 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Sequential
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
72 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06688058
Sponsor's protocol ID
V540D-004
Status last verified
Mar 2026
First submitted
12 Nov 2024
Last updated
13 Mar 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing V540D and GARDASIL®9 in people with Healthy, run by Merck Sharp & Dohme LLC at 4 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 13 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants Who Experience a Solicited Injection-Site Adverse Event (AE) (time frame: Up to approximately 6 months). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Mar 2026.

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