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ClinicalTrials.gov public records Last synced Oct 17, 2026, 6:12 AM EDT

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Showing 769–792 of 1,125 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Influenza Virus Vaccine Clear all
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Higher Dose Intradermal H5 Vaccine

NCT00439335
View directory record Official record
Conditions
Influenza
Interventions
Inactivated Influenza A Vaccine A/H5N1, Placebo (IM), Placebo (ID)
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
227 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 9, 2013 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 2 Interventional

Efficacy and Safety of Norketotifen in Uncomplicated Influenza-like Illness

NCT04610047
View directory record Official record
Conditions
Influenza, Influenza -Like Illness
Interventions
Norketotifen, Placebo
Drug
Lead sponsor
Emergo Therapeutics, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
315 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
20
States / cities
Phoenix, Arizona • Los Angeles, California • DeBary, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2023 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Not applicable Interventional

Optimizing the Influenza Clinical Decision Support Tool

NCT03415425
View directory record Official record
Conditions
Clinical Decision Support
Interventions
Current Version of the Influenza Alert, Alternate Modifications of the Influenza Alert
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
3 Years and older
Enrollment
25,881 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 1, 2024 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 1 Interventional

Trial to Evaluate the Safety, Tolerability, and Immunogenicity of a Mosaic Hexavalent Influenza Vaccine VRC-FLUMOS0116-00-VP (FluMos-v2) in Healthy Adults

NCT05968989
View directory record Official record
Conditions
Influenza
Interventions
VRC-FLUMOS0116-00-VP( FLUMos-v2)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity & Safety of GSK's Influenza Vaccine 1557484A Given to Adults Aged ≥18 Years

NCT00616928
View directory record Official record
Conditions
Influenza
Interventions
Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted, Placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
4,561 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
30
States / cities
Huntsville, Alabama • Phoenix, Arizona • Anaheim, California + 27 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2018 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Experimental AD4-H5-VTN Vaccine in Healthy Volunteers

NCT01443936
View directory record Official record
Conditions
H5N1 Influenza
Interventions
Ad4-H5-VTN vaccination-tonsillar route, Ad4-H5-vaccination-oral route
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of mRNA-1010 in Healthy Adults

NCT05606965
View directory record Official record
Conditions
Influenza
Interventions
mRNA-1010, Egg-based Quadrivalent Influenza Vaccine, Adjuvanted Quadrivalent Influenza Vaccine, Inactivated Influenza Vaccine, mRNA-1345, mRNA-1045
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
172 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Simultaneous mRNA COVID-19 and IIV Vaccination in Pregnancy Study

NCT06503900
View directory record Official record
Conditions
Birth Outcomes, Safety, Adverse Event Following Immunization
Interventions
mRNA COVID-19 vaccine, IIV4 (quadrivalent inactivated influenza vaccine)
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
6
States / cities
Atlanta, Georgia • Boston, Massachusetts • Durham, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 17, 2026, 6:12 AM EDT
Completed No phase listed Observational

Immune Response to Seasonal Influenza Vaccine in HIV Infected Individuals

NCT01381029
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 19, 2023 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Seasonal Influenza HA DNA With Trivalent Inactivated Vaccine (TIV) Administered ID or IM in Healthy Adults 18-70 Years

NCT01676402
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
18 Years to 70 Years
Enrollment
316 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
4
States / cities
Stanford, California • Iowa City, Iowa • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 25, 2022 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Influenza Vaccines GSK2654911A and GSK2654909A Administered to Adults 18 to 64 Years of Age

NCT01659086
View directory record Official record
Conditions
Influenza
Interventions
Investigational H9N2 vaccine GSK2654911A, Investigational H9N2 vaccine GSK2654909A, Placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
422 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
3
States / cities
Miami, Florida • Edison, New Jersey • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 18, 2018 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety of RIV4 Versus IIV4 in Pregnant Women

NCT03969641
View directory record Official record
Conditions
Safety, Adverse Event Following Immunisation, Birth Outcomes
Interventions
Quadrivalent Recombinant Influenza Vaccine, Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
384 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
3
States / cities
Boston, Massachusetts • Durham, North Carolina • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 11, 2023 · Synced Oct 17, 2026, 6:12 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 17, 2026, 6:12 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Immunogenicity of GSK Biologicals' Seasonal Influenza Vaccine in Children

NCT01198756
View directory record Official record
Conditions
Influenza
Interventions
Quadrivalent seasonal influenza vaccine GSK2282512A, Fluarix™ VB, Fluarix™ YB
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 17 Years
Enrollment
3,109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
16
States / cities
Chandler, Arizona • Scottsdale, Arizona • Harrisburg, Arkansas + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2018 · Synced Oct 17, 2026, 6:12 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 17, 2026, 6:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Sanofi 2017 H7N9 With/Without AS03 in Adults/Elderly

NCT03312231
View directory record Official record
Conditions
Avian Influenza, Influenza Immunisation
Interventions
AS03, Inactivated influenza H7N9 vaccine, Phosphate Buffered Saline (PBS) diluent
Drug · Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 99 Years
Enrollment
720 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
5
States / cities
Decatur, Georgia • Iowa City, Iowa • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study About Modified RNA Vaccines Against Influenza in Healthy Adults

NCT06436703
View directory record Official record
Conditions
Influenza, Human
Interventions
Influenza ModRNA Vaccine, Quadrivalent Influenza Vaccine (QIV)
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
32
States / cities
Mobile, Alabama • Scottsdale, Arizona • Anaheim, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 17, 2026, 6:12 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Preparedness Through Respiratory Virus Epidemiology and Community Engagement

NCT07147517
View directory record Official record
Conditions
Respiratory Infection Virus, COVID -19, RSV, FLU
Interventions
Component A0, Component A1, Component A2, Component B
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
Not listed
Enrollment
25,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2030
U.S. locations
2
States / cities
La Jolla, California • San Ysidro, California
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Clinical Study of the Immunogenicity of GSK Biologicals' Influenza Vaccine GSK2186877A in People Aged 65 Years or Older

NCT00765076
View directory record Official record
Conditions
Influenza
Interventions
GSK Biologicals' influenza vaccine GSK2186877A, GSK Biologicals' Fluarix
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
192 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 31, 2018 · Synced Oct 17, 2026, 6:12 AM EDT
Not listed No phase listed Observational

Yersinia Pestis Lateral Flow Immunoassay for Blood Samples

NCT04688996
View directory record Official record
Conditions
Plague, Plague, Bubonic, Plague, Pneumonic, Yersinia Pestis Plague, Yersinia Pestis; Bubo, Yersinia Pestis; Pneumonia, Yersinia Sepsis, Yersinia Pestis Infection, Bubo; Yersinia Pestis, Bubonic; Plague, Skin, Pneumonic Plague
Interventions
Lateral Flow Assay for Pathogens of the Plague
Diagnostic Test
Lead sponsor
Brimrose Technology Corporation
Industry
Eligibility
5 Years to 75 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2022 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Immunogenicity and Safety of bioCSL Quadrivalent Influenza Vaccine (QIV) in Adults Aged 18 Years and Above.

NCT02214225
View directory record Official record
Conditions
Influenza, Human
Interventions
Quadrivalent Influenza Vaccine (QIV), Trivalent Influenza Vaccine (TIV-1), Trivalent Influenza Vaccine (TIV-2)
Biological
Lead sponsor
Seqirus
Industry
Eligibility
18 Years and older
Enrollment
3,484 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
33
States / cities
Huntsville, Alabama • Los Angeles, California • San Diego, California + 29 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Text Message-Based Nudges Prior to Primary Care Visits to Increase Care Gap Closure

NCT05799976
View directory record Official record
Conditions
Pneumonia, Pneumococcal, Diabetes Mellitus, Breast Cancer, Colorectal Cancer
Interventions
Text message nudge
Behavioral
Lead sponsor
Mitesh Patel
Industry
Eligibility
18 Years and older
Enrollment
29,334 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 25, 2024 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Not applicable Interventional

Impact of Influenza Vaccination in Pregnancy Video Education

NCT02151201
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccination video education, Hand washing video education
Behavioral
Lead sponsor
The Cleveland Clinic
Other
Eligibility
Female only
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 2, 2014 · Synced Oct 17, 2026, 6:12 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Comparison of the Safety of Flublok® Versus Licensed IIV in Healthy, Medically Stable Adults ≥ 50 Years of Age

NCT01825200
View directory record Official record
Conditions
Influenza
Interventions
Flublok, Afluria
Biological
Lead sponsor
Protein Sciences Corporation
Industry
Eligibility
50 Years and older
Enrollment
2,640 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
14
States / cities
Tucson, Arizona • Coral Gables, Florida • Savannah, Georgia + 11 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2015 · Synced Oct 17, 2026, 6:12 AM EDT