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ClinicalTrials.gov public records Last synced Oct 4, 2026, 10:31 PM EDT

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Showing 73–96 of 616 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Influenza Vaccine 1 Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Immune Responses to Fluzone® Vaccination

NCT00835926
View directory record Official record
Conditions
Influenza
Interventions
Influenza virus vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety of 3 New 6:2 Influenza Virus Reassortants in Adults

NCT01579916
View directory record Official record
Conditions
Influenza
Interventions
Trivalent Influenza Virus Vaccine, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
303 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
3
States / cities
Miami, Florida • Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 3, 2014 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 2 Interventional Results available

Evaluation of Efficacy and Safety of Peramivir in Adults With Acute Serious or Potentially Life-threatening Influenza

NCT00453999
View directory record Official record
Conditions
Influenza
Interventions
Peramivir 200 mg, Peramivir 400 mg, Oseltamivir
Drug
Lead sponsor
BioCryst Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
41
States / cities
Mobile, Alabama • Jonesboro, Arkansas • Orange, California + 33 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2015 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Prompt to Bundle COVID-19 Booster and Flu Shot

NCT05586165
View directory record Official record
Conditions
COVID-19, Vaccines
Interventions
Reminder to boost protection against COVID-19, Flu Tag Along, COVID-19 Booster & Flu Bundle
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
109,493 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety, Tolerability, and Immunogenicity of Combined Modified RNA Vaccine Candidates Against COVID-19 and Influenza

NCT05596734
View directory record Official record
Conditions
Influenza, Human, COVID-19
Interventions
bivalent BNT162b2 (original/Omi BA.4/BA.5), qIRV (22/23), QIV, bIRV, tIRV
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years and older
Enrollment
1,019 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
59
States / cities
Athens, Alabama • Phoenix, Arizona • Lake Forest, California + 40 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Feasibility of Cocooning Immunization Strategy With Influenza Vaccine

NCT00570037
View directory record Official record
Conditions
Influenza
Interventions
Trivalent inactivated influenza vaccine
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
544 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
2
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 24, 2013 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A/H5N1 Vaccine in Healthy Children Aged 2-9 Years

NCT00133536
View directory record Official record
Conditions
Influenza
Interventions
Influenza A/H5N1 Vaccine, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Years to 9 Years
Enrollment
157 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
4
States / cities
Torrance, California • Baltimore, Maryland • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety and Immunogenicity of Two Doses of DCVC H1 HA mRNA-LNP in Healthy Adults

NCT05945485
View directory record Official record
Conditions
Influenza
Interventions
DCVC H1 HA mRNA vaccine, Quadrivalent Recombinant Seasonal Influenza Vaccine, Sodium Chloride, 0.9%
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 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Oct 4, 2026, 10:31 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Safety & Pharmacokinetics Study of Inhaled Laninamivir Octanoate TwinCaps® Dry Powder Inhaler in Children With Influenza

NCT02014649
View directory record Official record
Conditions
Influenza
Interventions
20 mg laninamivir octanoate, Placebo, 40 mg laninamivir octanoate
Drug
Lead sponsor
Biota Scientific Management Pty Ltd
Industry
Eligibility
5 Years to 17 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
28
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Bellflower, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Oct 4, 2026, 10:31 PM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Pilot Influenza Challenge Study

NCT07063849
View directory record Official record
Conditions
Influenza
Interventions
A/Texas
Biological
Lead sponsor
Daniel Hoft, MD, PhD
Other
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Different Formulations of an Adjuvanted A/H1N1 Pandemic Vaccine in Healthy Adults and the Elderly

NCT00952276
View directory record Official record
Conditions
Influenza, Swine-origin A/H1N1 Influenza
Interventions
Monovalent Subvirion A/H1N1 influenza vaccine with adjuvant, Monovalent Subvirion A/H1N1 influenza vaccine, Normal saline solution
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
548 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
15
States / cities
Anaheim, California • Fountain Valley, California • South Miami, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 3, 2011 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

H7N9 Mix and Match With MF59 in Healthy Adults

NCT01938742
View directory record Official record
Conditions
Influenza
Interventions
Influenza Virus Vaccine, Monovalent A/H7N9 A/Shanghai/2/2013, MF59
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 64 Years
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
4
States / cities
Decatur, Georgia • Iowa City, Iowa • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2016 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 2 Interventional Results available

Flu Vaccine Response in Patients on Biologic Therapies

NCT03277703
View directory record Official record
Conditions
Rheumatologic Disorder, Inflammatory Bowel Diseases, Immune Complex Diseases
Interventions
Influenza vaccine
Biological
Lead sponsor
Stony Brook University
Other
Eligibility
3 Years to 22 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
East Setauket, New York
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 1 Interventional

H7 Influenza Prime-Boost Regimens in Healthy Adults: Recombinant H7 DNA Plasmid Vaccine, VRC-FLUDNA071-00-VP, Administered Alone or With Monovalent Influenza Subunit Virion H7N9 Vaccine (MIV) as Prime With MIV Boost Compared to MIV Prime With MIV Boo...

NCT02206464
View directory record Official record
Conditions
Influenza
Interventions
A/Shanghai/02/2013 (H7N9) MIV, VRC-FLUDNA071-00-VP
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Genetic and Environmental Factors in the Response to Influenza Vaccination

NCT03088904
View directory record Official record
Conditions
Influenza, Healthy
Interventions
FluMist® Quadrivalent, Fluzone® Quadrivalent vaccine
Biological
Lead sponsor
Stanford University
Other
Eligibility
12 Years to 49 Years
Enrollment
109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 13, 2020 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

H5N1 With or Without Topical Aldara in Healthy Adults

NCT03472976
View directory record Official record
Conditions
Avian Influenza, Influenza Immunisation
Interventions
Aqueous Cream B.P., Imiquimod, Influenza Virus Vaccine, Monovalent A/H5N1 A/Vietnam/1203/04
Other · Drug · Biological
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
2018 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 24, 2020 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Evaluation of Anti-Hemagglutinin (Anti-HA) Antibodies as Protection From the Flu in Healthy People

NCT01971255
View directory record Official record
Conditions
Influenza
Interventions
Ca/04/2009/H1N1r Challenge Virus
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 24, 2017 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Evaluation of Alternative Oseltamivir (Tamiflu) Dosing Strategies.

NCT00304434
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir, Probenecid
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Sep 23, 2009 · Synced Oct 4, 2026, 10:31 PM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers Results available

An Open Label Study of IgG Fc Glycan Composition in Human Immunity

NCT01967238
View directory record Official record
Conditions
Healthy
Interventions
IM Pneumococcal, meningococcal, or flu vaccine
Biological
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 80 Years
Enrollment
129 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of mRNA-1010 Seasonal Influenza Vaccine in Adults

NCT05827978
View directory record Official record
Conditions
Seasonal Influenza
Interventions
mRNA-1010, Licensed Quadrivalent Inactivated Seasonal Influenza Vaccine
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
8,411 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
103
States / cities
Anniston, Alabama • Athens, Alabama • Cullman, Alabama + 85 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Clinical Study to Assess the Safety of a New Influenza Vaccine

NCT01104493
View directory record Official record
Conditions
Healthy
Interventions
Monovalent Frozen FluMist®, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
3
States / cities
South Miami, Florida • Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 18, 2011 · Synced Oct 4, 2026, 10:31 PM EDT
Withdrawn No phase listed Observational

2009 H1N1 Pandemic and Seasonal Influenza in SCI/D: Infection Control Strategies

NCT01270685
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 89 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Hines, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 26, 2015 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Inactivated Influenza A/H5N1 Vaccine in the Elderly

NCT00230750
View directory record Official record
Conditions
Influenza
Interventions
Influenza A/H5N1 Vaccine, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
65 Years and older
Enrollment
261 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
4
States / cities
Torrance, California • Rochester, New York • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2013 · Synced Oct 4, 2026, 10:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Immune Responses in Healthy Adults Receiving Live Influenza Virus Vaccines

NCT01674205
View directory record Official record
Conditions
Influenza, Human
Interventions
A/swine/Missouri/4296424/2006 (H2N3) x A/Ann Arbor/6/60 ca (H2N3 MO 2006/AA ca), A/chicken/Hong Kong/G9/97 (H9N2) x A/Ann Arbor/6/60 ca (H9N2 G9/AA ca), 2012-2013 trivalent seasonal live attenuated influenza vaccine (FluMist®), Vaccine placebo (Leibovitz-15 [L-15]), Vaccine placebo (FluMist®)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 42 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 15, 2015 · Synced Oct 4, 2026, 10:31 PM EDT