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ClinicalTrials.gov public records Last synced Oct 23, 2026, 12:05 AM EDT

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Showing 745–768 of 1,140 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Flu Clear all
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of the Sing2016 M2SR H3N2 Monovalent Influenza Vaccine in Adults Ages 50 to 85 Years Old

NCT04785794
View directory record Official record
Conditions
Influenza Vaccine
Interventions
Sing2016 M2SR H3N2 influenza vaccine, Placebo
Biological · Other
Lead sponsor
FluGen Inc
Industry
Eligibility
50 Years to 85 Years
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
3
States / cities
Anaheim, California • DeLand, Florida • Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 15, 2023 · Synced Oct 23, 2026, 12:05 AM 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 23, 2026, 12:05 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Th1 Response to Influenza: Aging and Vaccine Efficacy

NCT00396305
View directory record Official record
Conditions
Influenza
Interventions
Placebo, Trivalent Inactivated Influenza
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
21 Years and older
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Among Healthy Children Receiving Fluzone® Quadrivalent Influenza Virus Vaccine

NCT01946425
View directory record Official record
Conditions
Influenza
Interventions
Fluzone® Quadrivalent Influenza Virus Vaccine, No Preservative
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 8 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
Bardstown, Kentucky • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 25, 2014 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of PanBlok Influenza Vaccine in Healthy Adults

NCT01147068
View directory record Official record
Conditions
Influenza
Interventions
0.5mL Intramuscular Injection
Biological
Lead sponsor
Protein Sciences Corporation
Industry
Eligibility
18 Years to 49 Years
Enrollment
392 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
4
States / cities
Overland Park, Kansas • Omaha, Nebraska • Rochester, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 26, 2012 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Dose, Safety, Tolerability and Immunogenicity of an Influenza H10 Stabilized Stem Ferritin Vaccine, VRC-FLUNPF0103-00-VP, in Healthy Adults

NCT04579250
View directory record Official record
Conditions
Influenza
Interventions
VRC-FLUNPF0103-00-VP (H10ssF-6473)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety Study of Anti-Influenza Virus Monoclonal Antibody to Treat Influenza

NCT01390025
View directory record Official record
Conditions
Influenza, Human
Interventions
TCN-032, Placebo
Biological
Lead sponsor
Theraclone Sciences, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 2, 2012 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 4 Interventional Results available

Safety and Immunogenicity of Simultaneous Tdap and IIV in Pregnant Women

NCT02783170
View directory record Official record
Conditions
Pregnancy
Interventions
Tetanus, Diphtheria, and Pertussis Vaccine, 2016-2017 Quadrivalent Inactivated Influenza Vaccine, 2017-2018 Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
3
States / cities
Atlanta, Georgia • Durham, North Carolina • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced Oct 23, 2026, 12:05 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Influenza Vaccine in Lung Transplant Patients

NCT00205270
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 23, 2020 · Synced Oct 23, 2026, 12:05 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 23, 2016 · Synced Oct 23, 2026, 12:05 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

High-Dose Influenza Vaccine in Nursing Homes

NCT01815268
View directory record Official record
Conditions
Influenza
Interventions
HD Vaccine, SD Vaccine, Free Vaccine, Usual Care
Biological
Lead sponsor
Insight Therapeutics, LLC
Other
Eligibility
65 Years and older
Enrollment
823 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
3
States / cities
Cleveland, Ohio • Providence, Rhode Island • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Annual Study for Collection of Serum Samples in Children and Older Adults Receiving the 2021-2022 Formulations of Fluzone Quadrivalent Vaccine and Fluzone High-Dose Quadrivalent Vaccine, Respectively

NCT05050318
View directory record Official record
Conditions
Influenza Immunization, Healthy Volunteers
Interventions
Fluzone Quadrivalent vaccine, No Preservative (0.5-mL dose), 2021-2022 formulation, Fluzone High-Dose Quadrivalent vaccine (0.7-mL dose), 2021-2022 formulation
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
2
States / cities
Bardstown, Kentucky • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 12, 2025 · Synced Oct 23, 2026, 12:05 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Postmarketing Safety Study of Q/LAIV in Subjects 2 Through 49 Years of Age

NCT01985997
View directory record Official record
Conditions
Observation Safety
Interventions
Not listed
Lead sponsor
MedImmune LLC
Industry
Eligibility
Not listed
Enrollment
95,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Sep 7, 2016 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 4 Interventional

VSMART (Video-Conference Stress Management and Relaxation Training for Older Women With Breast Cancer)

NCT03955991
View directory record Official record
Conditions
Stress
Interventions
R-CBSM, Influenza vaccine
Behavioral · Biological
Lead sponsor
University of Miami
Other
Eligibility
50 Years and older · Female only
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
1
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

H5N8 Mix and Match With or Without AS03 or MF59 in Healthy Adults: Immunology

NCT03014310
View directory record Official record
Conditions
Avian Influenza
Interventions
AS03, MF59, Monovalent Influenza A/H5N8 vaccine
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 64 Years
Enrollment
388 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
7
States / cities
Atlanta, Georgia • Baltimore, Maryland • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2024 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of an MF59-Adjuvanted Influenza Vaccine in Older Adults

NCT04576702
View directory record Official record
Conditions
Influenza, Human
Interventions
Investigational aIIV4c, IIV4c, aIIV4, RIV4
Biological
Lead sponsor
Seqirus
Industry
Eligibility
50 Years and older
Enrollment
471 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
21
States / cities
Mobile, Alabama • Tempe, Arizona • Jacksonville, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated Apr 17, 2024 · Synced Oct 23, 2026, 12:05 AM EDT
Completed No phase listed Observational

Novel Influenza A (H1N1) Surveillance Registry

NCT01046331
View directory record Official record
Conditions
Novel Influenza A, H1N1, Influenza
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
894 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
86
States / cities
Anchorage, Alaska • Phoenix, Arizona • Little Rock, Arkansas + 52 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response to a Bird Flu Virus Vaccine (H5N1) in Healthy Adults

NCT00347672
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
H5N1 (6-2) AA ca Recombinant (A/VietNam/1203/2004 x A/AnnArbor/6/60/ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 21, 2008 · Synced Oct 23, 2026, 12:05 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Safety and Pharmacokinetics Study of Human Monoclonal Antibody (FGI-101-1A6)

NCT01299142
View directory record Official record
Conditions
Influenza
Interventions
FGI-101-1A6
Drug
Lead sponsor
Functional Genetics Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 18, 2011 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

H5N1 Mix and Match With MF59

NCT01317745
View directory record Official record
Conditions
Influenza
Interventions
Phosphate Buffered Saline (PBS) diluent, MF59 Adjuvant, H5N1 Antigen
Other · Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
270 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
5
States / cities
Atlanta, Georgia • Decatur, Georgia • Iowa City, Iowa + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2013 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Immunogenicity and Safety of Different Doses of Fluzone® Influenza

NCT00253734
View directory record Official record
Conditions
Influenza
Interventions
Fluzone® (IM), Fluzone®
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
217 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 3, 2013 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Combining Entertainment & Influenza Education for Pediatric Patients

NCT01788514
View directory record Official record
Conditions
Influenza
Interventions
Videogame
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
8 Years to 17 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Feb 6, 2019 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

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

NCT06178991
View directory record Official record
Conditions
Influenza, COVID-19
Interventions
Influenza and COVID-19 Combination A, Licensed influenza vaccine, COVID-19 Vaccine, Influenza and COVID-19 Combination B, Placebo, Investigational influenza vaccine
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years to 64 Years
Enrollment
8,795 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
106
States / cities
Athens, Alabama • Birmingham, Alabama • Mobile, Alabama + 76 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Oct 23, 2026, 12:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase I Safety and Immunogenicity Study of Mix and Match of Licensed Flu Vaccine and Flumist

NCT00231907
View directory record Official record
Conditions
Influenza
Interventions
FluMist, Fluzone
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Months to 35 Months
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
3
States / cities
St Louis, Missouri • Cincinnati, Ohio • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 23, 2026, 12:05 AM EDT