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Cancer Vaccine

A Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of Cytomegalovirus (CMV) Vaccine mRNA-1647

Phase 1
Waitlist Available
Research Sponsored by ModernaTX, Inc.
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be between 18 and 65 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up up to 5 years

Summary

This trial tests the safety and effectiveness of the mRNA-1647 vaccine in healthy Japanese adults aged 18-40, both those who have never had CMV and those who have. The vaccine helps the body recognize and fight CMV by using a small piece of genetic material. The CMV gB vaccine is well-tolerated and highly immunogenic in toddlers.

Eligible Conditions
  • Cytomegalovirus (CMV)

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~up to 5 years
This trial's timeline: 3 weeks for screening, Varies for treatment, and up to 5 years for reporting.

Treatment Details

Trial Design

2Treatment groups
Experimental Treatment
Placebo Group
Group I: mRNA-1647Experimental Treatment1 Intervention
CMV-seronegative or CMV-seropositive participants will receive mRNA-1647 vaccine by intramuscular (IM) injection in a 0-, 2-, and 6-month schedule.
Group II: PlaceboPlacebo Group1 Intervention
CMV-seronegative or CMV-seropositive participants will receive placebo matching to mRNA-1647 vaccine by IM injection in a 0-, 2-, and 6-month schedule.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
mRNA-1647
2021
Completed Phase 2
~510

Find a Location

Logistics

Participation is compensated

You will be compensated for participating in this trial.

Who is running the clinical trial?

ModernaTX, Inc.Lead Sponsor
120 Previous Clinical Trials
61,588,200 Total Patients Enrolled
~2 spots leftby Dec 2025