A Study to Find the Dose and Assess the Immune Response and Safety of a Vaccine Against Influenza in Healthy Younger and Older Adults

NCT06431607 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 845

Last updated 2026-03-10

Study results available
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Summary

The purpose of this study is to assess the safety and immune response of GlaxoSmithKlines (GSK) messenger RNA (mRNA)-based multivalent vaccine (GSK4382276A) candidate against influenza, administered in healthy younger adults (YA) and older adults (OA).

Conditions

  • Influenza, Human

Interventions

BIOLOGICAL

F2G22B/DL001Z

Study intervention was administered intramuscularly at Day 1.

BIOLOGICAL

F2H23D/DL001Z-NH

Study intervention was administered intramuscularly at Day 1.

BIOLOGICAL

F2H23B/DL001Z-NH

Study intervention was administered intramuscularly at Day 1.

BIOLOGICAL

F2H23H/DL001Z

Study intervention was administered intramuscularly at Day 1.

COMBINATION_PRODUCT

FDQ23A-NH (Flu D-QIV)

Control Vaccine was administered intramuscularly at Day 1.

BIOLOGICAL

GSK5800544A

Study intervention was administered intramuscularly at Day 1.

COMBINATION_PRODUCT

Flu D-TIV

Control Vaccine was administered intramuscularly at Day 1.

BIOLOGICAL

F2H23A/DL001Z-NH

Study intervention was administered intramuscularly at Day 1.

BIOLOGICAL

F2H23G/DL001Z

Study intervention was administered intramuscularly at Day 1.

COMBINATION_PRODUCT

Fluzone HD Quadrivalent

Control vaccine was administered intramuscularly at Day 1.

COMBINATION_PRODUCT

Fluzone HD

Control vaccine was administered intramuscularly at Day 1.

Sponsors & Collaborators

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-05-23
Primary Completion
2024-12-27
Completion
2025-06-04
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06431607 on ClinicalTrials.gov