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Showing 1–24 of 574 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Influenza Vaccine 2 Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Different Formulations of an Intramuscular A/H5N1 Inactivated, Split Virion Influenza Adjuvanted Vaccine

NCT00664417
View directory record Official record
Conditions
Influenza, Orthomyxoviridae Infections
Interventions
Monovalent subvirion H5N1 influenza vaccine, Physiological saline
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 40 Years
Enrollment
375 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
6
States / cities
San Diego, California • South Miami, Florida • Springfield, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2012 · Synced Sep 23, 2026, 9:59 AM EDT
Completed No phase listed Observational

Natural History of Systemic and Nasal Mucosal Immunity After Influenza Vaccination in a Pediatric Population

NCT04963166
View directory record Official record
Conditions
Influenza Immunity
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Years to 17 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Fluzone® Quadrivalent, Fluzone® Intradermal Quadrivalent, and Fluzone® High-Dose, Influenza Vaccines in Adults

NCT02563093
View directory record Official record
Conditions
Influenza
Interventions
Fluzone Quadrivalent vaccine, 2015-2016 formulation, No Preservative, Fluzone Intradermal Quadrivalent vaccine, 2015-2016 formulation, Fluzone High-Dose vaccine, 2015-2016 formulation
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
4
States / cities
Santa Rosa, California • Council Bluffs, Iowa • Metairie, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2016 · Synced Sep 23, 2026, 9:59 AM EDT
Terminated Phase 3 Interventional Results available

A Study to Evaluate the Efficacy and Safety of Pimodivir in Combination With the Standard-of-Care Treatment in Adolescent, Adult, and Elderly Hospitalized Participants With Influenza A Infection

NCT03376321
View directory record Official record
Conditions
Influenza A
Interventions
Pimodivir 600 mg, Placebo, SOC Treatment
Drug · Other
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
13 Years to 85 Years
Enrollment
334 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
28
States / cities
Birmingham, Alabama • Jonesboro, Arkansas • Fresno, California + 23 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2025 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Fluzone® Influenza Virus Vaccines 2012-2013 Formulation Among Adults.

NCT01691339
View directory record Official record
Conditions
Influenza
Interventions
Influenza Virus Vaccine: Fluzone® 2012-2013 Formulation, Influenza Virus Vaccine: Fluzone® Intradermal 2012-2013 Formulation, Influenza Virus Vaccine: Fluzone® High-Dose 2012-2013 Formulation
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
4
States / cities
Boca Raton, Florida • South Miami, Florida • Council Bluffs, Iowa + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2013 · Synced Sep 23, 2026, 9:59 AM EDT
Terminated Phase 2 Interventional Results available

Maintenance Dose Study of GEN-003 in Subjects With Genital Herpes Infection

NCT03146403
View directory record Official record
Conditions
Genital Herpes, HSV-2 Infection
Interventions
GEN-003, Matrix-M2, 0.9% normal saline
Biological · Other
Lead sponsor
Genocea Biosciences, Inc.
Industry
Eligibility
Not listed
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
8
States / cities
Birmingham, Alabama • San Diego, California • San Francisco, California + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2019 · Synced Sep 23, 2026, 9:59 AM EDT
Not listed Phase 1 Interventional

Regenerative Medicine for COVID-19 and Flu-Elicited ARDS Using Lomecel-B (RECOVER)

NCT04629105
View directory record Official record
Conditions
ARDS, Human, Covid19
Interventions
Longeveron Mesenchymal Stem Cells (LMSCs), Placebo
Biological · Other
Lead sponsor
Longeveron Inc.
Industry
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
3
States / cities
Miami, Florida • Baltimore, Maryland • Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 19, 2024 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

H7N9 Mix and Match With MF59 in Healthy Elderly Persons

NCT02213354
View directory record Official record
Conditions
Avian Influenza
Interventions
MF59, Influenza Virus Vaccine, Monovalent A/H7N9 A/Shanghai/2/2013
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
65 Years to 99 Years
Enrollment
479 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
10
States / cities
Decatur, Georgia • Iowa City, Iowa • Baltimore, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 5, 2017 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Quadrivalent Influenza VLP Vaccine Dose Ranging Study in Young Adults

NCT02307851
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 22, 2016 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

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

NCT06695130
View directory record Official record
Conditions
COVID-19 Immunization, Influenza Immunization
Interventions
RIV (recombinant influenza vaccine), rC19 (dose 1), RIV + rC19 (dose 1), RIV + rC19 (dose 2), RIV + rC19 (dose 3), RIV + 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
Phoenix, Arizona • Cerritos, California • Vista, California + 9 more
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Bioequivalence of Over-encapsulated Oseltamivir Capsules to Marketed Oseltamivir Capsules in Healthy Volunteers

NCT01258530
View directory record Official record
Conditions
Influenza, Human
Interventions
over-encapsulated oseltamivir, oseltamivir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 6, 2017 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Seasonal Influenza DNA Vaccine & Seasonal Influenza Trivalent Inactivated Vaccine (TIV) in Children & Adolescents

NCT01609998
View directory record Official record
Conditions
Influenza
Interventions
Seasonal Influenza DNA vaccine, TIV
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Years to 17 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
5
States / cities
Atlanta, Georgia • St Louis, Missouri • Lebanon, New Hampshire + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 5, 2018 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Prospective Study to Evaluate the Safety of a New Monovalent Intranasal Influenza Vaccine

NCT00873912
View directory record Official record
Conditions
Healthy
Interventions
Monovalent influenza virus vaccine, Placebo
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
3
States / cities
Daytona Beach, Florida • Portland, Oregon • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jul 13, 2011 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Phase 2 Study to Evaluate Immune Responses of FluMist®

NCT00461981
View directory record Official record
Conditions
Influenza Vaccine
Interventions
TIV, Trivalent Inactivated Influenza Virus Vaccine, FluMist, Influenza Virus Vaccine Live
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
12 Months to 35 Months
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
19
States / cities
Jonesboro, Arkansas • Little Rock, Arkansas • Anaheim, California + 16 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2021 · Synced Sep 23, 2026, 9:59 AM 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 23, 2026, 9:59 AM 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 17, 2011 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study to Evaluate the Safety of a Monovalent Vaccine of a New 6:2 Reassortant in Healthy Adults (AV024)

NCT00240877
View directory record Official record
Conditions
Influenza
Interventions
AV024, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 64 Years
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 19, 2008 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Revealing Protective Immunity to Influenza Using Systems Immunology

NCT06501963
View directory record Official record
Conditions
Influenza
Interventions
Live Attenuated Influenza Vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years to 49 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Learn About Flu and COVID-19 Vaccine Responses in Healthy People

NCT06683352
View directory record Official record
Conditions
Influenza,Human, COVID-19
Interventions
Investigational Influenza Vaccine, COVID-19 Vaccine, Investigational Influenza/COVID-19 Vaccine, Licensed Influenza Vaccine 1, Licensed Influenza Vaccine 2, Placebo
Biological · Combination Product · Other
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years and older
Enrollment
1,353 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
22
States / cities
Lake Forest, California • San Diego, California • Walnut Creek, California + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 1Phase 2 Interventional

FluMist in Egg Allergic Patients

NCT01248208
View directory record Official record
Conditions
Egg Allergy, Eligible for Vaccination Against Influenza
Interventions
FluMist intranasal influenza vaccine, Intramuscular influenza injection ("flu shot")
Biological
Lead sponsor
Walter Reed Army Medical Center
Federal
Eligibility
6 Months and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Oct 2, 2018 · Synced Sep 23, 2026, 9:59 AM 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 23, 2026, 9:59 AM 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 23, 2020 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 4 Interventional Results available

Evaluating The Safety And Clinical Efficacy Of Elderberry Extract In Patients With Influenza

NCT03410862
View directory record Official record
Conditions
Influenza, Human
Interventions
Elderberry Extract, Placebos
Drug
Lead sponsor
michael macknin
Other
Eligibility
5 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 18, 2021 · Synced Sep 23, 2026, 9:59 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

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

NCT06695117
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 23, 2026, 9:59 AM EDT