Skip to content

A Study of an Epstein-Barr Virus (EBV) Candidate Vaccine, mRNA-1189 in Healthy Adults 18 to 30 Years of Age

A Phase 1, Randomized, Open-label Study to Evaluate Safety, Reactogenicity, and Immunogenicity of an Epstein-Barr Virus Candidate Vaccine, mRNA-1189, Following Intradermal and Intramuscular Delivery in Healthy Adults 18 to 30 Years of Age

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07478952
Enrollment
120
Registered
2026-03-18
Start date
2026-03-17
Completion date
2027-05-15
Last updated
2026-03-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Epstein-Barr Virus

Keywords

Epstein-Barr Virus (EBV)

Brief summary

The main objective of this trial is to evaluate the safety and immunogenicity of mRNA-1189 after intradermal and intramuscular delivery.

Interventions

BIOLOGICALmRNA-1189

Sterile liquid for injection

Sponsors

ModernaTX, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 30 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy as determined by medical evaluation including medical history and physical examination. * Participants who are assigned female at birth or could become pregnant are eligible to participate if the participant is not pregnant or breast/chest feeding.

Exclusion criteria

* Have undergone surgical procedures within 7 days prior to Day 1 or Day 57 or are scheduled to undergo a surgical procedure within 28 days after study intervention administration. * Reported history of congenital or acquired immunodeficiency, immunosuppressive condition, asplenia, or recurrent severe infectious disease. * Received corticosteroids at ≥10 milligrams per day (mg/day) of prednisone or equivalent for \>14 days in total within 90 days prior to Day 1 or is anticipating the need for corticosteroids at any time during the study. * Received systemic immunosuppressive treatment, including long-acting biological therapies that affect immune responses, within 180 days prior to Day 1 or plans to do so during the study. * Received or plans to receive any nonstudy vaccine from 28 days prior to first dose/Day 1 up to 28 days after the second dose/Day 57. * History of myocarditis, pericarditis, or myopericarditis prior to Day 1. * Has previously received an investigational EBV vaccine. Note: Other inclusion and

Design outcomes

Primary

MeasureTime frame
Number of Participants with Solicited Local and Systemic Adverse Reactions (ARs)Up to Day 64 (7-day follow-up after vaccination)
Number of Participants with Unsolicited Adverse Events (AEs)Up to Day 85 (28-day follow-up after vaccination)
Number of Participants with Medically Attended Adverse Events (MAAEs)Day 1 up to Day 225
Number of Participants With Serious Adverse Events (SAEs), Any AEs Leading to Withdrawal From Study/Discontinuation of Study Vaccine and AEs of Special Interest (AESIs)Day 1 to end of study (EOS) (Day 225)

Secondary

MeasureTime frame
Geometric Mean Titer of Antigen-Specific Binding Antibody (bAb)Days 1 and 85
Geometric Mean Fold Rise (GMFR) of Antigen-Specific bAbDay 85
Number of Participants With Seroconversion of Antigen-Specific bAbsDay 85

Countries

Australia

Contacts

CONTACTModerna WeCare Team
WeCareClinicalTrials@modernatx.com1-866-663-3762

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 25, 2026