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Showing 1–24 of 1,121 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Influenza Virus Vaccine (Fluzone) Clear all
Recruiting Early Phase 1 Interventional

A Phase 0 Window of Opportunity Trial of Intratumoral Seasonal Influenza Immunization in Cutaneous Squamous Cell Carcinoma (CSCC) Patients Awaiting Curative Excision

NCT06664151
View directory record Official record
Conditions
Skin Cancer, Cutaneous Squamous Cell Carcinoma (CSCC), Cutaneous Squamous Cell Cancer
Interventions
Fluzone Trivalent
Biological
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Sep 29, 2026, 5:25 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating Modes of Influenza Transmission 2b Baseline SAR

NCT07342556
View directory record Official record
Conditions
Influenza (Healthy Volunteers)
Interventions
Exposure to Donors with naturally acquired influenza virus infection
Other
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years to 49 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Study to Evaluate the Effectiveness of FluMist Vaccination in a School-Based Intervention Program

NCT00192218
View directory record Official record
Conditions
Influenza
Interventions
FluMist
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
5 Years to 17 Years
Enrollment
3,022 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
2
States / cities
Baltimore, Maryland • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 21, 2008 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study to Evaluate the Safety of 3 New 6:2 Influenza Virus Reassortants in Adults for the 2015-2016 Season

NCT02473510
View directory record Official record
Conditions
Influenza, Healthy
Interventions
Trivalent Influenza Vaccine, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
301 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
3
States / cities
South Miami, Florida • Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 27, 2016 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Influenza Challenge Study to Determine the Optimal Infection Dose and Safety of a Recombinant H3N2 (A/Texas/71/2017 (H3N2, Clade 3C3a) Influenza Strain

NCT04978454
View directory record Official record
Conditions
Influenza
Interventions
Influenza RG-A/Texas/71/2017 (H3N2) Challenge, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Baltimore, Maryland • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Interferon as a Mucosal Adjuvant for Influenza Vaccine Given Intranasally

NCT00436046
View directory record Official record
Conditions
Influenza
Interventions
Trivalent inactivated influenza virus vaccine (2006-2007 formulation), Type 1 interferon
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 40 Years
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 12, 2011 · Synced Sep 29, 2026, 5:25 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Influenza Vaccine Post Allogeneic Transplant

NCT01215981
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplant, Hematologic Malignancy
Interventions
Influenza vaccine
Biological
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
6 Months and older
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 27, 2017 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Not applicable Interventional Results available

Vaccine Health Literacy Related Text Message Reminders to Increase Receipt of Second Dose of Influenza Vaccine for Young, Low Income, Urban Children

NCT01662583
View directory record Official record
Conditions
Influenza
Interventions
Text Message, Written reminder
Other
Lead sponsor
Columbia University
Other
Eligibility
6 Months to 9 Years
Enrollment
660 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 6, 2015 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Not applicable Interventional

Improving Vaccine Counseling Skills Among Residents Using Educational Modules and Standardized Patient Encounters

NCT06074237
View directory record Official record
Conditions
Vaccine Refusal, Vaccine-Preventable Diseases, Physician-Patient Relations
Interventions
Immersive resident education, Standardized patient (SP) encounter
Other
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Influenza HA Ferritin Vaccine, Alone or in Prime-Boost Regimens With an Influenza DNA Vaccine in Healthy Adults

NCT03186781
View directory record Official record
Conditions
Influenza
Interventions
VRC-FLUNPF081-00-VP (HA-F A/Sing), VRC-FLUDNA082-00-VP (DNA A/Sing)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 15, 2021 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Sanofi H1N1 Influenza Vaccine Administered at Two Dose Levels in Adult and Elderly Populations

NCT00943631
View directory record Official record
Conditions
Influenza
Interventions
Inactivated H1N1 Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
406 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
3
States / cities
Baltimore, Maryland • Durham, North Carolina • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 30, 2012 · Synced Sep 29, 2026, 5:25 PM EDT
Terminated Phase 4 Interventional Results available

A Study of Tamiflu (Oseltamivir) for Treatment of Influenza With a Focus on (H1N1) 2009 Flu Strain

NCT01032837
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir, Placebo
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
1 Year and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
100
States / cities
Tuscaloosa, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 91 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2012 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of VIS410 to Assess Safety and Pharmacokinetics

NCT02045472
View directory record Official record
Conditions
Influenza
Interventions
VIS410, Placebo
Drug
Lead sponsor
Visterra, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 13, 2015 · Synced Sep 29, 2026, 5:25 PM EDT
Not yet recruiting Not applicable Interventional

Clinical Validation of the Aptitude Medical Systems Metrix Respiratory Panel Test in At-Home/Non-Laboratory Settings

NCT07217639
View directory record Official record
Conditions
COVID -19, Influenza A, Influenza B, Respiratory Synctial Virus, RSV, Rhinovirus
Interventions
Aptitude Medical Systems Respiratory Panel Test
Diagnostic Test
Lead sponsor
Aptitude Medical Systems
Industry
Eligibility
Not listed
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Trussville, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 15, 2025 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Different Formulations of an A/H1N1 Pandemic Vaccine in Healthy Children Aged 6 Months to 9 Years

NCT00952419
View directory record Official record
Conditions
Influenza, Swine-origin A/H1N1 Influenza
Interventions
Monovalent Subvirion A/H1N1 Influenza vaccine, Normal saline solution (placebo)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 9 Years
Enrollment
474 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
20
States / cities
Miami Beach, Florida • Marietta, Georgia • Woodstock, Georgia + 16 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 4 Interventional Results available

FLUAD vs. FLUZONE HD Influenza Vaccine in Residents of Long Term Care

NCT03694808
View directory record Official record
Conditions
Flu
Interventions
Fluad Vaccine, Fluzone HD Vaccine
Drug
Lead sponsor
David H. Canaday
Other
Eligibility
65 Years and older
Enrollment
478 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 29, 2024 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immune Response to an H5N1 Influenza Vaccine in People Who Have Previously Received an H5N1 or H7N3 Influenza Vaccine and in People Who Have Never Received a Live Attenuated Influenza Vaccine

NCT01443663
View directory record Official record
Conditions
H5N1 Influenza
Interventions
H5N1 Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
22 Years to 54 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 8, 2016 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety of Two Trivalent Influenza Vaccines Evaluated in Children and Adolescents 4 to 17 Years of Age

NCT01857206
View directory record Official record
Conditions
Influenza, Fever
Interventions
Mammalian cell based flu vaccine, Egg based flu vaccine
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
4 Years to 17 Years
Enrollment
2,055 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
18
States / cities
Mobile, Alabama • Ponte Vedra, Florida • Augusta, Kansas + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2014 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Inactivated Influenza A/H9N2 Vaccine With and Without MF59 Adjuvant in Ambulatory Adults

NCT00133471
View directory record Official record
Conditions
Influenza
Interventions
Influenza A/H9N2 vaccine, MF59 adjuvant
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 34 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 26, 2010 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

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

NCT04622592
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 20, 2023 · Synced Sep 29, 2026, 5:25 PM EDT
Not listed No phase listed Observational

National Vaccine Adverse Event Reporting Survey and Etiology

NCT05095844
View directory record Official record
Conditions
COVID-19, Vaccine Adverse Reaction, Vaccine Reaction, Vaccine or Biological Substance, Unspecified Causing Adverse Effects in Therapeutic Use, Corona Virus Infection, Blood Clot, Thrombocytopenia, Neuritis, Vasculitis, Influenza, Guillain-Barré, GWAS, Genetic Sequencing
Interventions
vaccinated
Biological
Lead sponsor
Neuroganics LLC
Industry
Eligibility
5 Years to 99 Years
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Northglenn, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 17, 2022 · Synced Sep 29, 2026, 5:25 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immune Response of Different Pediatric Combination Vaccines.

NCT00255047
View directory record Official record
Conditions
Diphtheria, Polio, Pertussis
Interventions
DAPTACEL®. (DTaP), IPOL®., and ActHIB®., Pentacel®: DTaP-IPV/Hib combined, DTaP-IPV and ActHIB®
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
42 Days to 89 Days
Enrollment
2,167 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
36
States / cities
Tuscaloosa, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 29 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2014 · Synced Sep 29, 2026, 5:25 PM EDT
Recruiting Phase 1 Interventional

A Study on the Safety and Immune Response of Investigational mRNA Seasonal Flu/COVID-19 Combination Vaccine in Adults

NCT07464314
View directory record Official record
Conditions
Influenza, Human+COVID-19
Interventions
Investigational mRNA Seasonal Flu/COVID-19 Combination (Flu/COVm) Vaccine, Licensed Seasonal Influenza Vaccine, Licensed COVID-19 Vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
65 Years to 85 Years
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
12
States / cities
Anniston, Alabama • Little Rock, Arkansas • Fair Oaks, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 29, 2026, 5:25 PM EDT