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ClinicalTrials.gov public records Last synced May 22, 2026, 2:44 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 680 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Influenza a Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Influenza
Interventions
Quadrivalent seasonal influenza vaccine GSK2282512A, FluLavalTM-VB, FluLavalTM-YB
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
1,707 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
6
States / cities
Mesa, Arizona • Wichita, Kansas • Elkridge, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2018 · Synced May 22, 2026, 2:44 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Respiratory Tract Infections, Covid19, Flu Like Illness
Interventions
Vitamin D supplementation
Dietary Supplement
Lead sponsor
The Cooper Health System
Other
Eligibility
18 Years and older
Enrollment
877 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Camden, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 7, 2023 · Synced May 22, 2026, 2:44 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Influenza, Human, Human Immunodeficiency Virus I Infection
Interventions
Not listed
Lead sponsor
George Washington University
Other
Eligibility
18 Years to 99 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 18, 2023 · Synced May 22, 2026, 2:44 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Influenza, Human
Interventions
Flu shot text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
734,383 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 31, 2021 · Synced May 22, 2026, 2:44 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Influenza, Human, Influenza, Flu
Interventions
Diassess Influenza A and B Test
Device
Lead sponsor
Diassess Inc.
Industry
Eligibility
Not listed
Enrollment
567 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Feb 5, 2018 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir Phosphate, ADS-8902
Drug
Lead sponsor
Adamas Pharmaceuticals, Inc.
Industry
Eligibility
1 Year to 65 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
16
States / cities
San Francisco, California • Hollywood, Florida • Miramar, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2014 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Influenza, Human
Interventions
bioCSL Trivalent Influenza Virus Vaccine (CSL TIV), Comparator Quadrivalent Influenza Virus Vaccine
Biological
Lead sponsor
Seqirus
Industry
Eligibility
5 Years to 8 Years
Enrollment
402 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
11
States / cities
Los Angeles, California • Boise, Idaho • St Louis, Missouri + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2015 · Synced May 22, 2026, 2:44 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Influenza, Human, COVID-19, Influenza A, Influenza B, Respiratory Syncytial Virus (RSV)
Interventions
Not listed
Lead sponsor
Evidation Health
Industry
Eligibility
18 Years and older
Enrollment
18,157 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
San Mateo, California
Source: ClinicalTrials.gov public record
Updated Sep 4, 2024 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Influenza
Interventions
CAIV-T or TIV
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 60 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001
U.S. locations
2
States / cities
New Port Richey, Florida • Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 12, 2021 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Prophylaxis of A/H3N2v Influenza
Interventions
Swine Influenza
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
3 Years to 92 Years
Enrollment
627 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
11
States / cities
Redding, California • Sacramento, California • Lenexa, Kansas + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2016 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Influenza
Interventions
Cell culture-derived influenza vaccine, Egg-derived influenza virus vaccine, Placebo
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
18 Years to 49 Years
Enrollment
11,404 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
17
States / cities
Denver, Colorado • Pembroke Pines, Florida • South Miami, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Influenza, Human
Interventions
zanamivir aqueous solution
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months and older
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
40
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 33 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2017 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Influenza, Pandemic
Interventions
BW-1014: 25 µg rH5 in 20% NE - pipette - IN, BW-1014: 50 µg rH5 in 20% NE - pipette - IN, BW-1014: 100 µg rH5 in 20% NE - pipette - IN, rH5 (100 µg) control - pipette - IN, Saline (Placebo) - pipette - IN, H5N1 IIV - IM
Biological
Lead sponsor
BlueWillow Biologics
Industry
Eligibility
18 Years to 45 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 21, 2024 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
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 20, 2008 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Influenza, Human
Interventions
PF-07852352 Influenza saRNA 1, PF-07836391 Influenza saRNA, PF-07836394 Influenza saRNA, PF-07836395 Influenza saRNA, PF-07836396 Influenza saRNA, PF-07867246 Influenza saRNA, Placebo, Quadrivalent influenza vaccine (QIV), PF-07871987 Influenza saRNA, PF-07914705 Influenza saRNA, PF-07915048 Influenza saRNA
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 49 Years
Enrollment
440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
24
States / cities
Phoenix, Arizona • Walnut Creek, California • Greenacres City, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Influenza
Interventions
Trivalent inactivated influenza vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
65 Years and older
Enrollment
414 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
5
States / cities
Iowa City, Iowa • Baltimore, Maryland • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 18, 2014 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Influenza, Human
Interventions
Flu Pandemic mRNA_Dose level 1, Flu Pandemic mRNA_Dose level 2, Flu Pandemic mRNA_ Dose level 3., Flu Pandemic mRNA_ Dose level 4, Flu Pandemic mRNA_Dose level 5, Flu Pandemic mRNA_Dose level 6, Influenza virus vaccine, Placebo
Biological · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 85 Years
Enrollment
991 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
21
States / cities
Anniston, Alabama • Little Rock, Arkansas • Fort Collins, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Influenza, Healthy
Interventions
FluMist trivalent (2015-2016), FluMist Quadrivalent (2015-2016), FluMist Quadrivalent (2017-2018)
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
24 Months to 47 Months
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
12
States / cities
Savannah, Georgia • Bardstown, Kentucky • St Louis, Missouri + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2018 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Influenza
Interventions
CSL Trivalent Inactivated Influenza Vaccine - Thimerosal-free, CSL Trivalent Inactivated Influenza Vaccine with Thimerosal, Placebo with Thimerosal
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
1,359 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
10
States / cities
Stanford, California • Iowa City, Iowa • Baltimore, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2010 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
COVID-19 Prevention
Interventions
Ad26.COV2.S, Placebo, Influenza Vaccine
Biological · Other
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years and older
Enrollment
861 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
17
States / cities
Tempe, Arizona • San Diego, California • Coral Gables, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated May 24, 2025 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Influenza Prophylaxis
Interventions
Stratis Jet Injector, Needle and Syringe, 2011-2012 Fluzone trivalent inactivated influenza vaccine
Device · Biological
Lead sponsor
PharmaJet, Inc.
Industry
Eligibility
18 Years to 59 Years
Enrollment
83 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 19, 2019 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available
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 May 22, 2026, 2:44 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Influenza A
Interventions
VX-787 300 mg, VX-787 600 mg, Oseltamivir 75 mg, Placebo
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 64 Years
Enrollment
292 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
129
States / cities
Athens, Alabama • Birmingham, Alabama • Gulf Shores, Alabama + 126 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2025 · Synced May 22, 2026, 2:44 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Influenza, Pandemic Influenza
Interventions
H5N1 Influenza Vaccine, Whole virion, Vero cell-derived, Inactivated Influenza Vaccine, non-adjuvanted (reverse genetic reassortant/H5N1 hemagglutinin antigen)
Biological
Lead sponsor
Alachua Government Services, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
422 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
6
States / cities
Wichita, Kansas • Lexington, Kentucky • Kansas City, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2015 · Synced May 22, 2026, 2:44 AM EDT