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ClinicalTrials.gov public records Last synced Oct 14, 2026, 4:59 PM EDT

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Showing 217–240 of 350 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: TIV (Fluzone) Influenza Vaccination Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Replication-Competent Adenovirus 4-vectored Vaccine for Avian Influenza H5N1

NCT01006798
View directory record Official record
Conditions
Bird Flu, Influenza
Interventions
Placebo, Ad4-H5-Vtn, Sanofi Pasteur Influenza Virus Vaccine, H5N1
Other · Biological
Lead sponsor
Emergent BioSolutions
Industry
Eligibility
18 Years to 40 Years
Enrollment
166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
4
States / cities
Lexington, Kentucky • Kansas City, Missouri • Rochester, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

FLUAD® vs. Fluzone® High-Dose Study

NCT03183908
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 30, 2021 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Characterizing Late-season Influenza Vaccine Responses to Compare the 2023 and 2024 Vaccine Formulations

NCT06567860
View directory record Official record
Conditions
Influenza A
Interventions
Influenza Fluzone vaccine
Biological
Lead sponsor
La Jolla Institute for Immunology
Other
Eligibility
18 Years to 64 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 1Phase 2 Interventional

Lomecel-B on Vaccine-Specific Antibody- Response in Subjects With Aging Frailty

NCT02982915
View directory record Official record
Conditions
Aging Frailty
Interventions
Longeveron Mesenchymal Stem Cells (LMSCs), Fluzone High Dose Vaccine
Biological
Lead sponsor
Longeveron Inc.
Industry
Eligibility
65 Years to 90 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
6
States / cities
Coral Gables, Florida • Fort Myers, Florida • Miami, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2022 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Senescent Immunity in Elders and Vaccine Responses (SILVER)

NCT04077424
View directory record Official record
Conditions
Flu Vaccine
Interventions
Fluzone-High Dose Quadrivalent, Fluad, Flublock
Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
65 Years to 125 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 12, 2022 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Cellular and Humoral Immune Response to Primary and Secondary Immunization With Subvirion H5N1 Vaccines

NCT01086566
View directory record Official record
Conditions
Influenza
Interventions
Influenza Virus Vaccine, Monovalent A/H5N1 A/Indonesia/05/2005
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 1, 2016 · Synced Oct 14, 2026, 4:59 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

A Study to Learn About mRNA Vaccines Against Influenza in Adults

NCT07431853
View directory record Official record
Conditions
Healthy Adults
Interventions
Vaccine Candidate #1, Vaccine Candidate #2, Vaccine Candidate #3, Vaccine Candidate #4, Vaccine Candidate #5, Vaccine Candidate #6, TIV1 or TIV2
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
770 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
15
States / cities
Mobile, Alabama • Walnut Creek, California • Milford, Connecticut + 12 more
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 14, 2026, 4:59 PM EDT
Recruiting Phase 2 Interventional

High vs.Standard Dose Influenza Vaccine in Pediatric Solid Organ Transplant (SOT) Recipients

NCT05947071
View directory record Official record
Conditions
Immunization; Infection, Transplantation Infection, Influenza
Interventions
Standard Dose Quadrivalent Inactivated Influenza Vaccine, High Dose Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Years to 17 Years
Enrollment
312 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
10
States / cities
Stanford, California • Atlanta, Georgia • Chicago, Illinois + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

From Innovation to Solutions: Childhood Influenza Vaccination Planning

NCT01664793
View directory record Official record
Conditions
Influenza
Interventions
4 Pillars Immunization Toolkit
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
6 Months to 18 Years
Enrollment
87,665 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 24, 2014 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Reverse Genetic H9N2 Influenza Vaccine Study in Adults

NCT01320696
View directory record Official record
Conditions
Influenza
Interventions
Reverse Genetic (RG) reassortant A/H9N2 influenza vaccine
Biological
Lead sponsor
Alachua Government Services, Inc.
Industry
Eligibility
18 Years to 49 Years
Enrollment
353 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
5
States / cities
Huntsville, Alabama • Melbourne, Florida • Peoria, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2023 · Synced Oct 14, 2026, 4:59 PM EDT
Not yet recruiting Not applicable Interventional

Rule-Based High-Risk Flu

NCT07798882
View directory record Official record
Conditions
Influenza, Vaccination, Risk Reduction, Health Behavior, Health Promotion
Interventions
Risk reduction
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
51,215 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Not applicable Interventional Results available

Patient Portal Flu Vaccine Reminders (5)

NCT05525494
View directory record Official record
Conditions
Influenza, Respiratory Tract Infections
Interventions
Text Fixed R/R Messages with Direct Appointment Schedule Link, Text Pre-Appointment Reminder, Portal Pre-Commitment Prompt with Tailored R/R Messages with Direct Appointment Schedule Link, Portal Fixed R/R Messages with Direct Appointment Schedule Link, Portal Pre-Appointment Reminder
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
6 Months and older
Enrollment
262,085 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 7, 2024 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

4 Pillars Toolkit for Adolescent Vaccination

NCT02165722
View directory record Official record
Conditions
Adolescent HPV Vaccine, Adolescent Influenza Vaccine
Interventions
4 Pillars Toolkit
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
11 Years to 17 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 28, 2018 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Pediatric Safety and Immunogenicity Study of Cell-Culture Derived and Egg-based Subunit Influenza Vaccines in Healthy Children and Adolescents

NCT00645411
View directory record Official record
Conditions
Influenza
Interventions
Cell culture-derived influenza subunit vaccine (cTIV), Egg derived influenza subunit vaccine (eTIV)
Biological
Lead sponsor
Novartis
Industry
Eligibility
3 Years to 17 Years
Enrollment
3,604 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
16
States / cities
Fayetteville, Arkansas • Downey, California • Bardstown, Kentucky + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 23, 2015 · Synced Oct 14, 2026, 4:59 PM EDT
Completed No phase listed Observational

Studies of the Immune Response to Vaccination After Hematopoietic Stem Cell Transplantation

NCT01581164
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplant
Interventions
Influenza vaccine, Varicella vaccine
Biological
Lead sponsor
University of California, San Francisco
Other
Eligibility
5 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 8, 2015 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Not applicable Interventional Results available

Patient Portal Flu Vaccine Reminders (RCT 6)

NCT06062264
View directory record Official record
Conditions
Influenza, Respiratory Tract Infections
Interventions
Portal-based Video Message, Portal-based Infographic Message
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
6 Months and older
Enrollment
22,233 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 20, 2025 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Not applicable Interventional

Centralized IIS-based Reminder/Recall to Increase Childhood Influenza Vaccination Rates_2nd Trial in Colorado

NCT03246100
View directory record Official record
Conditions
Reminder Systems, Influenza Vaccines
Interventions
Reminders
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
6 Months to 17 Years
Enrollment
25,531 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 24, 2019 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Comparing the Immune Response and Safety of Fluarix and Fluzone Influenza Vaccines in Children

NCT00383123
View directory record Official record
Conditions
Influenza
Interventions
Fluarix™, Fluzone
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 17 Years
Enrollment
3,327 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
40
States / cities
Antioch, California • Fairfield, California • Fresno, California + 35 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2018 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Follow-up Study to Describe the Safety of Study Participants Who Received RSVPreF3 Maternal Vaccination (Any Dose) or Controls From Previous RSV MAT Studies During Any Pregnancy Conceived Post Vaccination/Control

NCT05705440
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
RSVPreF3 vaccine, Control
Biological · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
9 Years to 49 Years · Female only
Enrollment
3,855 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
27
States / cities
Mobile, Alabama • Phoenix, Arizona • Tucson, Arizona + 21 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Analysis of Antigen Specific B Cell Responses to Immunization With Influenza Virus Vaccine

NCT03748524
View directory record Official record
Conditions
Immunity, Cellular
Interventions
Influenza Vaccine
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Do NSAIDS or Executing Exercise Decrease Local Erythema, Site Swelling & Pain After INoculation

NCT02807623
View directory record Official record
Conditions
Immune System and Related Disorders
Interventions
Ibuprofen, Compound Exercise of Push-ups, oral placebo
Drug · Behavioral
Lead sponsor
Womack Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
2
States / cities
Bethesda, Maryland • Fort Bragg, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 27, 2020 · Synced Oct 14, 2026, 4:59 PM EDT
Completed No phase listed Observational

Qualitative, Qualitative, and Functional Studies Over the First Year in Measuring Immune System Response During the First Year of Therapy in Patients With Brain Tumors

NCT02747407
View directory record Official record
Conditions
Astrocytoma, Glioma, Oligodendroglioma
Interventions
Hepatitis A Vaccine, Laboratory Biomarker Analysis, Tetanus Toxoid Vaccine, Trivalent Influenza Vaccine
Biological · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 29, 2021 · Synced Oct 14, 2026, 4:59 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Development of Childhood Anti-Influenza Immunity

NCT03673345
View directory record Official record
Conditions
Influenza, Influenza Immunisation
Interventions
Influenza Virus Quadrivalent Inactivated Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Months to 15 Years
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 18, 2022 · Synced Oct 14, 2026, 4:59 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Adjuvanted Influenza Vaccination Year 2 Follow-On Survey

NCT03599739
View directory record Official record
Conditions
Influenza, Influenza-like Illness, Influenza, Human
Interventions
Influenza
Biological
Lead sponsor
Insight Therapeutics, LLC
Other
Eligibility
65 Years and older
Enrollment
598 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 16, 2023 · Synced Oct 14, 2026, 4:59 PM EDT