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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: H5N1 Vaccine Clear all
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Safety, Reactogenicity and Immunogenicity of an H5N1 VLP

NCT00519389
View directory record Official record
Conditions
Pandemic Influenza
Interventions
H5N1 VLP Vaccine, Placebo
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 40 Years
Enrollment
230 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 20, 2013 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of a Live-attenuated Universal Flu Vaccine Followed by an Inactivated Universal Flu Vaccine

NCT03300050
View directory record Official record
Conditions
Influenza, Vaccine
Interventions
cH8/1N1 LAIV, AS03-adjuvanted cH5/1N1 IIV, cH5/1N1 IIV, AS03-adjuvanted cH8/1N1 IIV, Normal saline, Phosphate buffered saline (PBS)
Biological
Lead sponsor
PATH
Other
Eligibility
18 Years to 39 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
2
States / cities
Durham, North Carolina • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 20, 2021 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cell-Mediated Immune Responses to Influenza A/H5N1 Vaccine

NCT00311727
View directory record Official record
Conditions
Influenza
Interventions
Influenza A/H5N1
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
339 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
3
States / cities
Baltimore, Maryland • Rochester, New York • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 15, 2013 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Durability and Impact of the Seasonal Influenza Vaccine on H5 Induced B Cell Response

NCT03701061
View directory record Official record
Conditions
Influenza A Subtype H5N1 Infection
Interventions
Seasonal Influenza Vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
Not listed
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 10, 2020 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study in Healthy Adults to Assess Priming With Antigenically Mismatched Live Attenuated A/H7N3 Influenza Virus Vaccine Followed by Inactivated A/H7N9 Influenza Virus Vaccine

NCT03581903
View directory record Official record
Conditions
Influenza
Interventions
H7N3 pLAIV, H7N9 pIIV
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 24, 2019 · Synced Sep 29, 2026, 9:32 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

A Laboratory Evaluation of the Humoral Immune Response in Adults and Children to the H1 Hemagglutinin (HA) Stalk Domain and Other Influenza A Virus Protein Epitopes, After Administration of GlaxoSmithKline (GSK) Biologicals' Pandemic Influenza Vaccines

NCT02415842
View directory record Official record
Conditions
Immunologic Tests
Interventions
Serum samples
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 64 Years
Enrollment
414 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

St. Jude Open Label H5 Trial

NCT00311675
View directory record Official record
Conditions
Influenza
Interventions
Inactivated Influenza A/H5N1 Vaccine (sanofi pasteur)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 26, 2010 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Monovalent H5N1 Vaccine GSK1557484A in Children 6 Months to < 18 Years of Age

NCT01310413
View directory record Official record
Conditions
Influenza, Influenza Vaccines
Interventions
Influenza A (H5N1) Virus monovalent vaccine, Saline placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 17 Years
Enrollment
842 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
11
States / cities
Paramount, California • Sacramento, California • Newton, Kansas + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of BPL-1357, A BPL-Inactivated, Whole-Virus, Universal Influenza Vaccine

NCT05027932
View directory record Official record
Conditions
Influenza
Interventions
IN Placebo, IM Placebo, BPL-1357
Other · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 7, 2025 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

H7N9 Boost in Healthy Adults

NCT02586792
View directory record Official record
Conditions
Influenza
Interventions
Monovalent influenza A/H7N9 virus vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 50 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1 Interventional

Safety Study of Avian Flu Vaccine

NCT00408109
View directory record Official record
Conditions
Influenza A Virus, H5N1 Subtype, Influenza A Virus, Influenzavirus A, Orthomyxoviridae, H5N1 Virus
Interventions
VRC-AVIDNA036-00-VP
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Dose Ranging Study to Evaluate Immunogenicity and Safety of Adjuvanted or Non-adjuvanted Cell Culture-derived H5N1 Influenza Vaccine in Young Adults (18-40 Years Old)

NCT00812019
View directory record Official record
Conditions
Influenza
Interventions
Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 3.75_0%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 3.75_25%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 3.75_50%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 3.75_100%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 7.5_0%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 7.5_25%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 7.5_50%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 7.5_100%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 15_0%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 15_25%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 15_50%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 15_100%MF59
Biological
Lead sponsor
Seqirus
Industry
Eligibility
18 Years to 40 Years
Enrollment
753 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 23, 2020 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Influenza Vaccine(s) GSK3206641A and GSK3206640A Administered in Adults 18 to 64 Years of Age

NCT01999842
View directory record Official record
Conditions
Influenza
Interventions
Investigational H7N9 vaccine GSK3206641A, Investigational H7N9 vaccine GSK3206640A, Placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
424 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
5
States / cities
Jacksonville, Florida • Stockbridge, Georgia • Boise, Idaho + 2 more
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Revaccination With Subunit Influenza A/Vietnam/1203/2004 (H5N1) Vaccine

NCT00240903
View directory record Official record
Conditions
Influenza
Interventions
Influenza A/Vietnam/1203/2004 (H5N1; sanofi pasteur)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Aug 11, 2011 · Synced Sep 29, 2026, 9:32 AM 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 22, 2013 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

2013/2017 H7N9 Prime-Boost Interval

NCT03589807
View directory record Official record
Conditions
Avian Influenza, Influenza Immunisation
Interventions
A/H7N9, AS03, Influenza Virus Vaccine, Monovalent A/H7N9 A/Shanghai/2/2013, Phosphate Buffered Saline (PBS) diluent
Biological · Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 50 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
6
States / cities
Atlanta, Georgia • Decatur, Georgia • Iowa City, Iowa + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2021 · Synced Sep 29, 2026, 9:32 AM EDT
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 8, 2013 · Synced Sep 29, 2026, 9:32 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 20, 2008 · Synced Sep 29, 2026, 9:32 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 15, 2019 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study to Find and Confirm the Dose and Assess Safety, Reactogenicity and Immune Response of a Vaccine Against Pandemic H5N1 Influenza Virus in Healthy Younger and Older Adults

NCT06382311
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 Sep 29, 2026, 9:32 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate Safety and Immunogenicity of One or Two Booster Vaccinations With H5N6 Influenza Vaccine in Adults Primed With H5N1 Influenza Vaccine or Unprimed

NCT05422326
View directory record Official record
Conditions
Influenza, Human, Influenza in Birds, Respiratory Tract Infections, Infections, Orthomyxoviridae Infections, RNA Virus Infections, Virus Diseases, Respiratory Tract Diseases
Interventions
aH5N6c on Day 1, aH5N6c on Day 22, Placebo on Day 22
Biological
Lead sponsor
Seqirus
Industry
Eligibility
18 Years and older
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
18
States / cities
Huntsville, Alabama • Tempe, Arizona • San Diego, California + 14 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response to a Bird Flu Virus Vaccine (H9N2) in Healthy Adults (Study B)

NCT00380237
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
H9N2 (6-2) AA ca Reassortant (A/Chicken/Hong Kong/G9/97 x A/Ann Arbor/6/60 ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
20 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 Sep 29, 2026, 9:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pandemic Influenza Plasmid DNA Vaccines (Needle-Free)

NCT00694213
View directory record Official record
Conditions
Influenza
Interventions
VCL-IPM1, VCL-IPT1, PBS
Biological
Lead sponsor
Vical
Industry
Eligibility
18 Years to 45 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
3
States / cities
San Diego, California • Baltimore, Maryland • Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Feb 26, 2019 · Synced Sep 29, 2026, 9:32 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

H5 Vaccine Alone or With Adjuvant in Healthy Adults

NCT00296634
View directory record Official record
Conditions
Influenza
Interventions
Aluminum hydroxide, Inactivated Influenza A/H5N1 Vaccine (sanofi pasteur pre-adsorbed)
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
4
States / cities
Baltimore, Maryland • Rochester, New York • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2010 · Synced Sep 29, 2026, 9:32 AM EDT