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ClinicalTrials.gov public records Last synced Nov 5, 2026, 8:20 AM EST

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Showing 1–14 of 14 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Fluzone HD IIV Clear all

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

Conditions: Influenza
Interventions: live attenuated and inactivated influenza vaccines; Biological
Lead sponsor: Baylor College of Medicine; Other
Eligibility: 4 Years to 18 Years
Enrollment: 29,255 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 1998 – 2010
U.S. locations: 2
States / cities: Temple, Texas • Waco, Texas

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

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

Conditions: Immunization; Infection|Transplantation Infection|Influenza, Influenza
Interventions: Fluzone High Dose Inactivated Influenza Vaccine, Fluzone Standard Dose Inactivated Influenza Vaccine; Biological
Lead sponsor: Vanderbilt University Medical Center; Other
Eligibility: 18 Years and older
Enrollment: 60 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2029
U.S. locations: 1
States / cities: Nashville, Tennessee

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: Influenza, Community-acquired Pneumonia, Cardiovascular Events
Interventions: Adjuvanted Quadrivalent Inactivated Influenza Vaccine (aIIV4), High-Dose Quadrivalent Inactivated Influenza Vaccine (HD-IIV4); Biological
Lead sponsor: Kaiser Permanente; Other
Eligibility: 65 Years and older
Enrollment: 1,500,000 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2023 – 2028
U.S. locations: 1
States / cities: Oakland, California

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: Influenza
Interventions: Seasonal IIV 0.25 mL dose, Natural influenza infection, Seasonal IIV 0.5 mL dose; Biological · Other
Lead sponsor: University of Rochester; Other
Eligibility: 3 Months to 8 Years
Enrollment: 134 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2015 – 2020
U.S. locations: 1
States / cities: Rochester, New York

Conditions: Influenza
Interventions: IIV Flu Vaccine, Metronidazole, Neomycin, Vancomycin; Drug
Lead sponsor: Emory University; Other
Eligibility: 18 Years to 40 Years
Enrollment: 33 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2015 – 2017
U.S. locations: 1
States / cities: Atlanta, Georgia

Conditions: Immune Response to Influenza Vaccine, Influenza A Virus Infection, Influenza B Virus Infection
Interventions: LAIV, IIV; Biological
Lead sponsor: Marshfield Clinic Research Foundation; Other
Eligibility: 5 Years to 17 Years
Enrollment: 131 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2015
U.S. locations: 1
States / cities: Marshfield, Wisconsin

Conditions: Influenza
Interventions: High-Dose trivalent influenza vaccine (Split virion, Inactivated), Standard-dose trivalent influenza vaccine (Split virion, Inactivated); Biological
Lead sponsor: Sanofi Pasteur, a Sanofi Company; Industry
Eligibility: 50 Years to 64 Years
Enrollment: 1,180 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2024 – 2025
U.S. locations: 20
States / cities: Los Alamitos, California • Fort Myers, Florida • Hollywood, Florida + 16 more

Conditions: Influenza Vaccine
Interventions: Cam2020 M2SR H3N2 influenza vaccine, Fluzone HD IIV, IN Placebo, IM Placebo; Biological · Other
Lead sponsor: FluGen Inc; Industry
Eligibility: 65 Years to 85 Years
Enrollment: 303 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022
U.S. locations: 6
States / cities: Port Orange, Florida • Meridian, Idaho • Lenexa, Kansas + 3 more

Conditions: Influenza
Interventions: Quadrivalent inactivated influenza vaccine (IIV); Biological
Lead sponsor: Stanford University; Other
Eligibility: 20 Years to 75 Years
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019 – 2023
U.S. locations: 1
States / cities: Stanford, California

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

Control of Epidemic Influenza Through a School-based Influenza Vaccination Program

High vs. Standard Dose Influenza Vaccine in Adult SOT Recipients

The Effects of Attenuated Versus Inactivated Flu Vaccine in Twin Sets

High vs. Standard Dose Influenza Vaccines in Lung Transplant (Repeater)

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

Fluad vs. Fluzone High-Dose Vaccine Effectiveness Among Adults ≥65 Years

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

Influenza Immunity in Children

Systems Biology of Flu Vaccine in Healthy Adults With and Without the Use of Antibiotics

Randomized Study of Immune Response to Licensed Influenza Vaccines in Children and Adolescents

Study to Evaluate Immunogenicity and Safety of a High-Dose Influenza Vaccine in Adults 50 Through 64 Years of Age

Safety and Immunogenicity of Cam2020 M2SR H3N2 Monovalent Influenza Vaccine Alone or With Licensed IIV in Older Adults

Response to Inactivated Influenza Vaccine in Lymph Tissue and Blood