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ClinicalTrials.gov public records Last synced Oct 8, 2026, 6:56 PM EDT

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Showing 49–60 of 60 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Fluarix Quadrivalent® Influenza Virus Vaccine Clear all
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5410 in Adult Participants 18 Years of Age and Older

NCT05624606
View directory record Official record
Conditions
Influenza Immunization
Interventions
Quadrivalent Influenza mRNA Vaccine MRT5410, Quadrivalent Recombinant Influenza vaccine RIV4, Quadrivalent Inactivated Influenza Standard Dose QIV-SD, Quadrivalent Inactivated Influenza High Dose QIV-HD
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
682 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
23
States / cities
Huntington Park, California • Long Beach, California • North Hollywood, California + 19 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Oct 8, 2026, 6:56 PM EDT
Active, not recruiting Phase 2 Interventional

High vs. Standard Dose Influenza Vaccine in Adult SOT Recipients

NCT04613206
View directory record Official record
Conditions
Immunization; Infection, Transplantation Infection, Influenza, Solid Organ Transplant
Interventions
High Dose Quadrivalent Inactivated Influenza Vaccine, Standard Dose Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study to Evaluate Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Quadrivalent Influenza Vaccine GSK2282512A When Administered to Children From 6 to 35 Months of Age

NCT01974895
View directory record Official record
Conditions
Influenza
Interventions
FluLaval® Quadrivalent, Fluzone®
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 35 Months
Enrollment
316 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
12
States / cities
Sacramento, California • West Covina, California • Altamonte Springs, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 7, 2018 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Innate and Acquired Immunity to Influenza Infection and Immunization (SLVP029)

NCT03028974
View directory record Official record
Conditions
Influenza
Interventions
Fluzone®, FluMist®
Biological
Lead sponsor
Stanford University
Other
Eligibility
6 Months to 49 Years
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2018 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Annual Study for Collection of Serum Samples in Children and Older Adults Receiving the 2021-2022 Formulations of Fluzone Quadrivalent Vaccine and Fluzone High-Dose Quadrivalent Vaccine, Respectively

NCT05050318
View directory record Official record
Conditions
Influenza Immunization, Healthy Volunteers
Interventions
Fluzone Quadrivalent vaccine, No Preservative (0.5-mL dose), 2021-2022 formulation, Fluzone High-Dose Quadrivalent vaccine (0.7-mL dose), 2021-2022 formulation
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
2
States / cities
Bardstown, Kentucky • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 12, 2025 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Fluzone® Quadrivalent, Fluzone® Intradermal, and Fluzone® High-Dose Influenza Virus Vaccines in Adults

NCT01946438
View directory record Official record
Conditions
Influenza
Interventions
Fluzone® Quadrivalent, Influenza Virus Vaccine (2013-2014 formulation),, Fluzone® Intradermal, Influenza Virus Vaccine (2013-2014 formulation),, Fluzone® High-Dose, Influenza Virus Vaccine (2013-2014 formulation)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
4
States / cities
Santa Rosa, California • Council Bluffs, Iowa • Metairie, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2014 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Recombinant Influenza Vaccine Versus Standard Egg-Based Inactivated Influenza Vaccine in Adults 18-64 Years

NCT05514002
View directory record Official record
Conditions
Influenza, Human
Interventions
Fluzone Quadrivalent, Flublok Quadrivalent
Biological
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
18 Years to 64 Years
Enrollment
3,988 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
4
States / cities
Tucson, Arizona • Tallahassee, Florida • Houston, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of mRNA-1345 Vaccine Targeting Respiratory Syncytial Virus (RSV) in Adults ≥50 Years of Age

NCT05330975
View directory record Official record
Conditions
Respiratory Syncytial Virus
Interventions
Placebo, mRNA-1345, Afluria® Quadrivalent, mRNA-1273.214
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
50 Years and older
Enrollment
3,317 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
62
States / cities
Birmingham, Alabama • Tucson, Arizona • Garden Grove, California + 51 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Immunogenicity of GSK Biologicals' Seasonal Influenza Vaccine in Adults

NCT01196975
View directory record Official record
Conditions
Influenza
Interventions
Quadrivalent seasonal influenza vaccine GSK2282512A, FluLavalTM-VB, FluLavalTM-YB
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
1,707 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
6
States / cities
Mesa, Arizona • Wichita, Kansas • Elkridge, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2018 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

The Effects of Attenuated Versus Inactivated Flu Vaccine in Twin Sets

NCT03898986
View directory record Official record
Conditions
Influenza
Interventions
Live attenuated influenza vaccine (LAIV4), Inactivated Influenza Vaccine (IIV4)
Biological
Lead sponsor
Stanford University
Other
Eligibility
2 Years to 20 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 6, 2025 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Fluzone® Quadrivalent Vaccine Administered to Healthy Children

NCT02915302
View directory record Official record
Conditions
Influenza
Interventions
Fluzone Quadrivalent vaccine, No Preservative
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 35 Months
Enrollment
1,950 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
35
States / cities
Birmingham, Alabama • Harrisburg, Arkansas • Downey, California + 28 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2022 · Synced Oct 8, 2026, 6:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of a Monovalent mRNA Vaccine Encoding Influenza Hemagglutinin in Adult Participants 18 Years of Age and Older

NCT06118151
View directory record Official record
Conditions
Influenza, Influenza Immunization
Interventions
Influenza Hemagglutinin mRNA vaccine, Quadrivalent Recombinant Influenza Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
388 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
20
States / cities
Rolling Hills Estates, California • San Diego, California • Coral Gables, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 7, 2023 · Synced Oct 8, 2026, 6:56 PM EDT