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ClinicalTrials.gov public records Last synced Nov 15, 2026, 10:50 AM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 142 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Fluzone High Dose Vaccine Clear all

Conditions: Pandemic H5N1 Influenza
Interventions: Adjuvanted H5N1 pandemic influenza vaccine; Biological
Lead sponsor: Novartis Vaccines; Industry
Eligibility: 6 Months to 17 Years
Enrollment: 662 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2013 – 2014
U.S. locations: 10
States / cities: Miami, Florida • Newton, Kansas • Wichita, Kansas + 6 more

Conditions: Pandemic Influenza
Interventions: H5N1 VLP Vaccine, Placebo; Biological
Lead sponsor: Novavax; Industry
Eligibility: 18 Years to 40 Years
Enrollment: 230 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2007 – 2008
U.S. locations: 1
States / cities: San Antonio, Texas

Conditions: Immunity to Influenza Vaccine
Interventions: High dose influenza vaccine Sanofi-Pasteur, fluzone by sanofi pasteur; Biological
Lead sponsor: Vanderbilt University; Other
Eligibility: 65 Years and older
Enrollment: 105 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2010 – 2013
U.S. locations: 1
States / cities: Nashville, Tennessee

Conditions: Influenza A
Interventions: LD Sing2016 M2SR H3N2 influenza vaccine, MD Sing2016 M2SR H3N2 influenza vaccine, HD Sing2016 M2SR H3N2 influenza vaccine, LD Bris10 M2SR H3N2 influenza vaccine, Placebo; Biological · Other
Lead sponsor: FluGen Inc; Industry
Eligibility: 18 Years to 49 Years
Enrollment: 206 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019 – 2020
U.S. locations: 4
States / cities: Hollywood, Florida • Lenexa, Kansas • Lexington, Kentucky + 1 more

Conditions: Influenza, Healthy Volunteers
Interventions: Trivalent (TIV) messenger ribonucleic acid (mRNA) hemagglutinin (HA) Vaccine 1, TIV mRNA-neuraminidase (NA), TIV mRNA-HA Vaccine 2, Quadrivalent Influenza Standard Dose Vaccine, Quadrivalent Influenza Vaccine High Dose; Biological
Lead sponsor: Sanofi Pasteur, a Sanofi Company; Industry
Eligibility: 50 Years and older
Enrollment: 1,162 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2025 – 2026
U.S. locations: 21
States / cities: Birmingham, Alabama • Mobile, Alabama • Tempe, Arizona + 18 more

Conditions: Influenza
Interventions: Quadrivalent VLP Vaccine, Comparator TIV; Biological
Lead sponsor: Novavax; Industry
Eligibility: 18 Years to 49 Years
Enrollment: 400 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2015
U.S. locations: 5
States / cities: Anaheim, California • Miami, Florida • Lenexa, Kansas + 2 more

Conditions: Lymphoma, Leukemia, Myelodysplastic Syndrome
Interventions: Fludarabine, Busulfan, Cyclophosphamide, Mycophenolate Mofetil, Tacrolimus; Drug
Lead sponsor: Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins; Other
Eligibility: 6 Months to 75 Years
Enrollment: 15 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2012
U.S. locations: 1
States / cities: Baltimore, Maryland

Conditions: COVID-19 Immunization, Influenza Immunization
Interventions: IIV-HD, rC19 (dose 1), IIV-HD + rC19 (dose 1), IIV-HD + rC19 (dose 2), IIV-HD + rC19 (dose 3), IIV-HD + rC19 (dose 4), Placebo (0.9% NaCl); Biological · Other
Lead sponsor: Sanofi; Industry
Eligibility: 50 Years and older
Enrollment: 980 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2024 – 2026
U.S. locations: 12
States / cities: Birmingham, Alabama • Huntsville, Alabama • Tucson, Arizona + 9 more

Conditions: Respiratory Syncytial Virus (RSV)
Interventions: Low dose RSV-F Vaccine with Adjuvant (Day 0); Seasonal TIV (Day 0 & Day 28), Low dose RSV-F Vaccine without Adjuvant (Day 0); Seasonal TIV (Day 0 & day 28), High dose RSV-F Vaccine with Adjuvant (Day 0); Seasonal TIV (Day 0 & Day 28), High dose RSV-F Vaccine without Adjuvant (Day 0); Seasonal TIV (Day 0 & Day 28), Placebo (Day 0 & Day 28); Seasonal TIV (Day 0); Biological
Lead sponsor: Novavax; Industry
Eligibility: 60 Years and older
Enrollment: 220 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2012 – 2014
U.S. locations: 4
States / cities: Tucson, Arizona • Melbourne, Florida • Dallas, Texas + 1 more

Conditions: Vaccine Reaction
Interventions: MicronJet, Fluzone® Quadrivalent, Fluzone® High Dose Quadrivalent; Device · Biological
Lead sponsor: Yale University; Other
Eligibility: 18 Years and older
Enrollment: 139 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2026 – 2029
U.S. locations: 1
States / cities: New Haven, Connecticut

Conditions: Influenza, Seasonal Influenza
Interventions: VRC-GENADJ0110-AP-NV (Adjuplex), Flucelvax, VRC-FLUMOS0111-00-VP (FluMos-v1); Drug · Biological
Lead sponsor: National Institute of Allergy and Infectious Diseases (NIAID); NIH
Eligibility: 18 Years to 50 Years
Enrollment: 63 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2021 – 2024
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Influenza
Interventions: Influenza Virus Quadrivalent Inactivated Vaccine, Sodium Chloride, 0.9%, VRC-FLUNPF099-00-VP (H1ssF_3928); Biological · Other
Lead sponsor: National Institute of Allergy and Infectious Diseases (NIAID); NIH
Eligibility: 18 Years to 49 Years
Enrollment: 50 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2023 – 2025
U.S. locations: 1
States / cities: Durham, North Carolina

Conditions: Influenza
Interventions: Low dose, Intermediate dose, High dose, Placebo; Biological
Lead sponsor: KBio Inc; Industry
Eligibility: 18 Years to 49 Years
Enrollment: 120 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2021
U.S. locations: 1
States / cities: Omaha, Nebraska

Conditions: Pandemic H5N1 Influenza
Interventions: Adjuvanted H5N1 pandemic influenza vaccine; Biological
Lead sponsor: Novartis Vaccines; Industry
Eligibility: 65 Years and older
Enrollment: 1,393 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2013 – 2014
U.S. locations: 12
States / cities: Phoenix, Arizona • Hollywood, Florida • Wichita, Kansas + 7 more

Conditions: Influenza, Human
Interventions: MER4101, Inactivated Influenza Vaccine; Biological
Lead sponsor: Nova Immunotherapeutics Limited; Industry
Eligibility: 18 Years and older
Enrollment: 102 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2015 – 2020
U.S. locations: 1
States / cities: St Louis, Missouri

Conditions: Hematologic Disorder
Interventions: Lenalidomide, Influenza Vaccine, Pneumovax Vaccine; Drug · Biological
Lead sponsor: M.D. Anderson Cancer Center; Other
Eligibility: 18 Years and older
Enrollment: 3 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2017
U.S. locations: 1
States / cities: Houston, Texas

Conditions: Healthy, no Evidence of Disease
Interventions: cholecalciferol, questionnaire administration, trivalent influenza vaccine; Dietary Supplement · Other · Biological
Lead sponsor: Roswell Park Cancer Institute; Other
Eligibility: 18 Years to 64 Years
Enrollment: 11 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2011 – 2015
U.S. locations: 1
States / cities: Buffalo, New York

Conditions: Influenza, Human
Interventions: Experimental: IIV-A Investigational IIV-A administered as a single dose intramuscularly on Day 1, Experimental: aIIV-B Investigational aIIV-B administered as a single dose intramuscularly on Day 1, Experimental: aIIV-C Investigational aIIV-C administered as a single dose intramuscularly on Day 1, Active Comparator: Licensed IIV IIV administered as a single dose intramuscularly on Day 1; Biological
Lead sponsor: Seqirus; Industry
Eligibility: 50 Years and older
Enrollment: 1,056 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2023
U.S. locations: 47
States / cities: Tempe, Arizona • Huntington Beach, California • San Diego, California + 42 more

Conditions: Influenza
Interventions: Influenza VLP Vaccine, TIV; Biological
Lead sponsor: Novavax; Industry
Eligibility: 60 Years and older
Enrollment: 467 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2009 – 2010
U.S. locations: 6
States / cities: Pembroke Pines, Florida • Rochester, Minnesota • Providence, Rhode Island + 3 more

Conditions: Plasma Cell Neoplasm
Interventions: Pneumococcal 13-valent Conjugate Vaccine, Trivalent Influenza Vaccine; Biological
Lead sponsor: Emory University; Other
Eligibility: 18 Years and older
Enrollment: 165 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2022
U.S. locations: 2
States / cities: Atlanta, Georgia

Conditions: Pain, Quality of Life, Injection Site Reaction, Side Effect of Drug, Adverse Drug Event
Interventions: FLUAD®, Fluzone® High-Dose; Biological
Lead sponsor: Duke University; Other
Eligibility: 65 Years and older
Enrollment: 757 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2017 – 2019
U.S. locations: 4
States / cities: Atlanta, Georgia • Boston, Massachusetts • Durham, North Carolina + 1 more

Conditions: Breast Cancer, Breast Cancer Triple Negative
Interventions: Fluzone Quadrivalent; Biological
Lead sponsor: Rush University Medical Center; Other
Eligibility: 18 Years and older
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2027
U.S. locations: 1
States / cities: Chicago, Illinois

Conditions: Influenza Immunization
Interventions: Quadrivalent Influenza mRNA Vaccine MRT5407, Quadrivalent Recombinant Influenza Vaccine, Quadrivalent Influenza Standard Dose Vaccine, Quadrivalent Influenza High-Dose Vaccine; Biological
Lead sponsor: Sanofi Pasteur, a Sanofi Company; Industry
Eligibility: 18 Years and older
Enrollment: 560 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2024
U.S. locations: 23
States / cities: Rolling Hills Estates, California • San Diego, California • DeLand, Florida + 16 more

Conditions: Influenza
Interventions: Instramuscular vaccine; Biological
Lead sponsor: Medicago; Industry
Eligibility: 65 Years and older
Enrollment: 209 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2022
U.S. locations: 14
States / cities: Huntsville, Alabama • Chandler, Arizona • San Diego, California + 11 more

Search by objective public record fields.

Safety and Immunogenicity of Two Doses of H5N1 Influenza Vaccine in Children

Safety, Reactogenicity and Immunogenicity of an H5N1 VLP

Cell Mediated Immunity in Older Adults

Safety and Immunogenicity of the Bris10 M2SR and Sing2016 M2SR H3N2 Monovalent Influenza Vaccines

A Study on the Safety and Immunogenicity of Hexavalent Influenza mRNA Vaccine in Adult Participants 50 Years of Age and Older

Quadrivalent Influenza VLP Vaccine Dose Ranging Study in Young Adults

Reduced-intensity, Related-donor Bone Marrow Transplantation Followed by High-dose Cyclophosphamide for Hematologic Cancers

Study of a Combination Vaccine Comprised of Different Recombinant Spike Antigen Levels of a Matrix-M Adjuvanted Recombinant COVID-19 Vaccine and High-Dose Inactivated Influenza Vaccine in Adult Participants 50 Years of Age and Older

RSV-F Vaccine and Influenza Vaccine Co-Administration Study in the Elderly

Intradermal Influenza Vaccination

First-in-Human Clinical Trial of a Mosaic Quadrivalent Influenza Vaccine Compared With a Licensed Inactivated Seasonal QIV in Healthy Adults

A Study to Evaluate the Safety and Immunogenicity of a Single Dose of H1ssF-3928 mRNA-LNP in Healthy Adults

Study to Evaluate the Safety and Immunogenicity of KBP-V001 Quadrivalent Influenza Vaccine in Healthy Adults

Safety and Immunogenicity of Two Doses of H5N1 Influenza Vaccine in Elderly Subjects

The Safety, Tolerance, and Immunogenicity of MAS-1-Adjuvanted Seasonal Inactivated Influenza Vaccine (MER4101)

Lenalidomide as Immune Adjuvant in Patient's With Chronic Lymphocytic Leukemia (CLL)

Cholecalciferol and Flu Vaccine in Treating Healthy Participants

Safety and Immunogenicity of Different Formulations of an MF59-Adjuvanted Influenza Vaccine in Older Adults ≥50 Years of Age

Evaluate the Safety and Immunogenicity of a Seasonal Influenza Virus-Like Particle (VLP) Vaccine in Older Adults

Influenza Vaccination for Flu Prevention in Patients With Plasma Cell Disorders

FLUAD® vs. Fluzone® High-Dose Study

A Study to Evaluate the Intratumoral Influenza Vaccine Administration in Patients With Breast Cancer

Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5407 in Adult Participants18 Years of Age and Older

Adjuvanted Seasonal Recombinant Quadrivalent Virus-Like Particles (QVLP) Influenza Vaccine in Adults 65 Years of Age and Older