Skip to main content

cmv pentamer complex proteins/gb-encoding mrna vaccine mrna-1647

Generic: CMV Pentamer Complex Proteins/gB-encoding mRNA Vaccine mRNA-1647

cmv pentamer complex proteins/gb-encoding mrna vaccine mrna-1647: 6 clinical trials tracked.

cmv pentamer complex proteins/gb-encoding mrna vaccine mrna-1647 evidence translation

What we can confirm

6 tracked trials

No verified listed company relationship

What it means

AI will separate confirmed drug evidence from unknown company context.

What to watch

Watch trial status, endpoints, and the next source-backed update.
BioSniper AIPage evidence connected

Prepared research question

What is verified about cmv pentamer complex proteins/gb-encoding mrna vaccine mrna-1647, and what remains unknown?

Run cited research

Traceable citations · Unknowns marked

See linked entities and source evidence3 indications · 0 study sponsors

Study sponsors

No additional listed-company sponsor is linked.

Clinical Trial Registry Records (6)

A Phase 2, Observer-Blind, Placebo-Controlled Proof-of-Concept Trial to Evaluate Efficacy, Safety, and Immunogenicity of mRNA-1647 Cytomegalovirus Vaccine in Patients Who Have Undergone Allogeneic Hematopoietic Cell Transplantation (HCT)

NCT05683457Registry updated 2026-08-10·Phase 2
Active, not recruiting

Primary endpoint: Time to the First Occurrence of an CS-CMVi Event as Measured by initiation of anti-CMV Antiviral Therapy

InterventionalRandomizedtriple84 enrolledStarted 2023-04Completion 2027-033 sites · United StatesModernaTX, Inc.

A Phase 1/2a Open-Label Dose-Ranging and Observer-Blind Placebo-Controlled, Safety and Immunogenicity Study of mRNA-1647 Cytomegalovirus Vaccine in Female and Male Participants 9 to 15 Years of Age and Participants 16 to 25 Years of Age

NCT05575492Registry updated 2026-06-04·Phase 1/Phase 2
Completed

Primary endpoint: Number of Solicited Local and Systemic Reactogenicity Adverse Reactions (ARs)

InterventionalRandomizedquadruple873 enrolledStarted 2022-11Completion 2026-0550 sites · Canada, United StatesModernaTX, Inc.

Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Modified mRNA Vaccines Using a Systems Biology Approach in Healthy Adults

NCT05397223Registry updated 2026-03-12·Phase 1
Completed

Primary endpoint: Number of Participants With Solicited Local and Systemic Reactogenicity Adverse Reactions (ARs)

InterventionalRandomizedopen308 enrolledStarted 2022-05Completion 2026-028 sites · United StatesModernaTX, Inc.

A Phase 3, Randomized, Observer-Blind, Placebo-Controlled Study to Evaluate the Efficacy, Safety, and Immunogenicity of mRNA-1647 Cytomegalovirus (CMV) Vaccine in Healthy Participants 16 to 40 Years of Age

NCT05085366Registry updated 2025-12-15·Phase 3
Terminated

Primary endpoint: Seroconversion From a Negative to a Positive Result for Serum Immunoglobulin G (IgG) Against Antigens not Encoded by mRNA-1647

InterventionalRandomizedquadruple7,454 targetStarted 2021-10Completion 2025-1150 sites · United StatesModernaTX, Inc.

A Phase 2, Non-Randomized, Long-Term Extension Study to Evaluate the Immunogenicity and Safety of Cytomegalovirus mRNA-1647 Vaccine Including a Booster Dose in a Subset of Participants Who Completed Study mRNA-1647-P202

NCT04975893Registry updated 2026-02-02·Phase 2
Completed

Primary endpoint: Primary Extension Phase: Geometric Mean Titers (GMTs) of Antigen-Specific Neutralizing Antibody (nAb) and Binding Antibody (bAb)

Interventionalopen135 enrolledStarted 2021-06Completion 2026-017 sites · United StatesModernaTX, Inc.

A Phase 2, Randomized, Observer-Blind, Placebo-Controlled, Dose-Finding Trial to Evaluate the Safety and Immunogenicity of Cytomegalovirus Vaccine mRNA-1647 in Healthy Adults

NCT04232280Registry updated 2026-05-05·Phase 2
Completed

Primary endpoint: Number of Participants With Solicited Local and Systemic Adverse Reactions (ARs)

InterventionalRandomizeddouble315 enrolledStarted 2020-01Completion 2023-019 sites · United StatesModernaTX, Inc.