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Cytomegalovirus InfectionsPhase 1NCT03840174

Safety and Immunogenicity of the Human Cytomegalovirus (CMV) Vaccine (V160) in Healthy Japanese Men (V160-003)

A Phase 1 study testing V160 in people with Cytomegalovirus Infections, run by Merck Sharp & Dohme LLC at 1 site in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the study is to assess the safety and tolerability of a 3-dose regimen of V160 administered by intramuscular (IM) injection in healthy Japanese male participants by cytomegalovirus (CMV) serostatus. There is no formal hypothesis. Read more about this study

Who is it for?
Ages 20 to 64 years, men onlyHealthy volunteers can take part
Conditions the study is for
Cytomegalovirus Infections
What is being tested?
V160
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
18 participants
Where
1 siteJapan
Study dates
8 Mar 2019to 7 Nov 2019
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 20 to 64 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy based on medical history and physical examination
  • Serologically confirmed to be CMV seropositive or CMV seronegative at Visit 1
  • If of reproductive potential, agrees to the following from randomization through at least 4 weeks after the last dose of V160-/placebo (from Day 1 through Month 7): 1) practice abstinence from heterosexual activity and remain abstinent, or 2) use contraception unless confirmed to be azoospermic as detailed in the protocol

Who cannot join

  • History of any allergic reaction or anaphylactic reaction to any vaccine component that required medical intervention
  • Plans donation of sperm any time from signing the informed consent through 1 month after receiving the last dose of study drug
  • Is currently immunocompromised or has been diagnosed as having a congenital or acquired immunodeficiency, human immunodeficiency virus (HIV) infection, lymphoma, leukemia, systemic lupus erythematosus, rheumatoid arthritis, juvenile rheumatoid arthritis, inflammatory bowel disease, or other autoimmune condition that requires immunosuppressive medication.
  • Has a condition in which repeated venipuncture or injections post more than minimal risk for the participant, such as hemophilia, thrombocytopenia, other severe coagulation disorders, or significantly impaired venous access
  • Has major psychiatric illness including: any history or schizophrenia or severe psychosis, bipolar disorder requiring therapy, or suicidal ideation within 3 years.
  • Has previously received any CMV vaccine
Show all 14Show fewer
  • Had any live virus vaccine administered or scheduled to be administered in the period from 4 weeks prior to, and 4 weeks following receipt of study drug
  • Had any inactivated vaccine administered or scheduled within the period from 14 days prior to, through 14 days following study drug
  • Had administration of any immune globulin or blood product within 90 days prior to injection with study drug or scheduled within 30 days thereafter
  • Has received systemic corticosteroids (equivalent of ≥2 mg/kg total daily dose of prednisone or ≥20 mg/d for persons weighing >10 kg) for ≥14 consecutive days and has not completed treatment at least 30 days prior to study entry
  • Has received systemic corticosteroids exceeding physiologic replacement doses (≈5 mg/d prednisone equivalent) within 14 days prior to the first vaccination (participants using inhaled, nasal, or topical steroids are considered eligible for the study)
  • Has received any anti-viral agent (e.g. letermovir, ganciclovir, valganciclovir, foscarnet, and valacyclovir) with proven or potential activity against CMV 14 days prior to vaccination or is likely to receive such an agent within 14 days after vaccination
  • Receiving or has received in the year prior to enrollment immunosuppressive therapies including but not limited to rapamycin (also sirolimus), tacrolimus (also FK-506), or other therapies used for solid organ/cell transplant, radiation therapy, immunosuppressive/cytotoxic immunotherapy, chemotherapy and other immunosuppressive therapies known to interfere with the immune response. Topical tacrolimus is allowed provided that it is not used within 14 days prior to, or 14 days following study drug
  • Has participated in another clinical trial in the past 4 weeks, or plans to participate in a treatment-based trial or a trial in which an invasive procedure is to be performed while enrolled in this trial.

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • Souseikai PS Clinic ( Site 0001)

    Fukuoka, 812-0025

Other trials in Japan

About this study

Official title: A Phase I Randomized, Double-Blind, Placebo-controlled Study to Evaluate the Safety, Tolerability and Immunogenicity of V160 (Human Cytomegalovirus Vaccine) in Healthy Japanese Men

The purpose of the study is to assess the safety and tolerability of a 3-dose regimen of V160 administered by intramuscular (IM) injection in healthy Japanese male participants by cytomegalovirus (CMV) serostatus. There is no formal hypothesis.

Being tested
V160, Placebo
Medical subject headings
Cytomegalovirus Infections

What participants receive

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

  • V160Biological

    V160 administered as a 0.5 mL (100 Units) IM injection containing 225 mcg aluminum phosphate adjuvant (APA)

  • PlaceboOther

    Saline solution (0.9% sodium chloride [NaCl] administered as a 0.5 mL IM injection

Study groups in NCT03840174
Study groupRoleWhat they receive
V160ExperimentalParticipants will receive V160 vaccination by IM injection on Day 1, Month 2, and Month 6.
Receives: Biological: V160
PlaceboPlacebo comparatorParticipants will receive placebo by IM injection on Day 1, Month 2, and Month 6.
Receives: Other: Placebo

What is being measured

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

  1. Percentage of Participants With a Solicited Injection-site Adverse Event (AE)

    Participants used the vaccination report card (VRC) to document the presence of any solicited injection-site AEs (pain/tenderness, erythema/redness, and swelling) that occurred in the 5 days after each vaccination. The percentage of participants with a solicited injection-site AE was reported.

    Measured: Up to 5 days after each vaccination

  2. Percentage of Participants With a Solicited Systemic Adverse Event (AE)

    Participants used the vaccination report card (VRC) to document the presence of any solicited systemic AEs (headache, fatigue, muscle pain, joint pain) that occurred in the 14 days after each vaccination. The percentage of participants with a solicited systemic AE is reported.

    Measured: Up to 14 days after each vaccination

  3. Percentage of Participants With a Vaccine-related Serious Adverse Event (SAE)

    An SAE is defined as any untoward medical occurrence that, at any dose, results in death; is life-threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or other important medical event. The percentage of participants with an SAE considered to be at least possibly related to the study intervention will be reported

    Measured: Up to 14 days after each vaccination

Secondary outcomes (4)
  1. Geometric Mean Titer (GMT) of CMV-specific Neutralizing Antibody (NAb)

    The NAb GMT in initially CMV-seronegative participants vaccinated with a 3-dose regimen of V160 administered IM was assessed.

    Measured: 1 month after third vaccination (at 7 months)

  2. Number of Participants With Viral Detection of V160 in Plasma

    The number of participants with positive viral detection in plasma (defined by viral load in plasma ≥assay defined threshold cutoff value) was assessed.

    Measured: Day 1 (predose, at dosing, and 3 hours postdose), Day 3, Day 7, and Day 14

  3. Number of Participants With Wild-Type CMV Detection in Urine and Saliva

    The number of participants with positive wild-type viral shedding in urine or saliva (defined by viral load in saliva/urine ≥ assay defined threshold cutoff value) will be assessed.

    Measured: Day 1 (predose), 3, 7, and 14 and Months 2, 6, and 7

  4. Number of Participants With Viral Detection of V160 in Injection-site Swab and Adhesive Tape Swab

    The number of participants with positive viral leakage in injection-site swab and adhesive tape swab (defined by viral load in injection-site swab/adhesive tape swab ≥ assay defined threshold cutoff value) will be assessed.

    Measured: Day 1: 0, 10, 20, and 30 minutes postvaccination

Timeline

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

  1. First posted15 Feb 2019
  2. Study start8 Mar 2019
  3. Primary completion7 Nov 2019
  4. Study completion7 Nov 2019

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
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03840174
Sponsor's protocol ID
V160-003
Other IDs
V160-003, 194648
Status last verified
May 2023
First submitted
12 Feb 2019
Last updated
6 May 2023
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

Publications

  • Murata S, Oshima N, Iwasa T, Fukao Y, Sawata M. Safety, Tolerability, and Immunogenicity of V160, a Conditionally Replication-Defective Cytomegalovirus Vaccine, in Healthy Japanese Men in a Randomized, Controlled Phase 1 Study. Antibodies (Basel). 2023 Mar 10;12(1):22. doi: 10.3390/antib12010022.

    PubMed 36975369

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing V160 in people with Cytomegalovirus Infections, run by Merck Sharp & Dohme LLC at 1 site in Japan.

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 3 inclusion and 14 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: finished, as of the sponsor's last update on 6 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Japan. 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. Some participants in this study may receive a placebo. 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?

Yes. Results are posted in the registry (first posted 15 Nov 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Percentage of Participants With a Solicited Injection-site Adverse Event (AE) (time frame: Up to 5 days after each vaccination). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03840174, which also lists 1 linked publication.

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 6 May 2023.

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