Trial
NCT05085366
A Study to Evaluate the Efficacy, Safety, and Immunogenicity of mRNA-1647 Cytomegalovirus (CMV) Vaccine in Healthy Participants 16 to 40 Years of Age
Phase IIITERMINATEDEFFICACY/FUTILITYConfidence: MEDIUM
Sponsor
ModernaTX, Inc.
Collaborators
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Condition
Cytomegalovirus Infection
Intervention
mRNA-1647
Why stopped
The Sponsor decided to terminate the study after it did not meet the primary efficacy endpoint at final analysis. The safety profile was consistent with prior studies, and no safety concerns were raised by the Data and Safety Monitoring Board.
Provenance
Dataset: 2026-07-02 • Source: ClinicalTrials.gov API v2 • Last update: 2025-12-15