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ClinicalTrials.gov public records Last synced Oct 3, 2026, 6:53 AM EDT

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Showing 25–48 of 70 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Pandemic Influenza Vaccine Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

H5N1 Vaccine Intramuscular Versus Intradermal in Healthy Adults

NCT00310206
View directory record Official record
Conditions
Influenza
Interventions
Inactivated Influenza A Vaccine A/H5N1
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 40 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 3, 2013 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Influenza Immunity Against Pandemic Respiratory Virus

NCT00138281
View directory record Official record
Conditions
Influenza
Interventions
FluMist, Fluzone
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2006
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 3, 2026, 6:53 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 21, 2008 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immunogenicity of a H7N9 Vaccine for the Prevention of Influenza H7N9 Disease in Adults 50 to 70 Years Old

NCT02274545
View directory record Official record
Conditions
Influenza A Virus, H7N9 Subtype
Interventions
H7N9 Anhui 2013/AA ca, Inactivated subvirion H7N9 vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
50 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2014
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 19, 2017 · Synced Oct 3, 2026, 6:53 AM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Study to Assess Safety and Immunogenicity of an Egg-based H5N8 Influenza Vaccine at Multiple Dose Levels Adjuvanted With Matrix-M in Healthy Participants 18 Years of Age and Above.

NCT07779408
View directory record Official record
Conditions
Healthy Volunteers, Influenza
Interventions
Flu H5 egg pandemic low dose vaccine, with adjuvant, Flu H5 Egg Pandemic medium dose vaccine, with adjuvant, Flu H5 Egg Pandemic high dose vaccine, with adjuvant, Flu H5 Egg Pandemic high dose vaccine, without adjuvant
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
640 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
16
States / cities
Tempe, Arizona • Rolling Hills Estates, California • San Diego, California + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity Study of Adenovirus-vectored, Intranasal Pandemic Influenza Vaccine.

NCT00755703
View directory record Official record
Conditions
Influenza A Subtype H5N1 Infection
Interventions
Pandemic Influenza Vaccine, Placebo
Biological
Lead sponsor
Altimmune, Inc.
Industry
Eligibility
19 Years to 49 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Crossover Study to Investigate the Safety, Tolerability, and Pharmacokinetics of Repeat Dose Zanamivir/Placebo Via Devices Administered Twice Daily for 5 Days

NCT00989404
View directory record Official record
Conditions
Influenza A Virus, H1N1 Subtype
Interventions
Zanamivir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 14, 2017 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

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

NCT00719043
View directory record Official record
Conditions
Influenza
Interventions
A/turkey H5N1 vaccine, Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted (A/Indonesia), Placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
841 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
10
States / cities
Denver, Colorado • Chicago, Illinois • Metairie, Louisiana + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2018 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Live Influenza A Vaccine for Avian Influenza H7N7

NCT00922259
View directory record Official record
Conditions
Influenza A
Interventions
Influenza A H7N7 vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 13, 2013 · Synced Oct 3, 2026, 6:53 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 14, 2016 · Synced Oct 3, 2026, 6:53 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

A Study of mRNA-1018-H5 Pandemic Influenza Vaccine in Healthy Adults

NCT07496450
View directory record Official record
Conditions
Influenza
Interventions
mRNA-1018-H5, Placebo
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
4,050 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
10
States / cities
San Bernardino, California • Savannah, Georgia • Meridian, Idaho + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study of mRNA-1018 Pandemic Influenza Candidate Vaccines in Healthy Adults

NCT05972174
View directory record Official record
Conditions
Influenza
Interventions
mRNA-1018 for H5N8, mRNA-1018 for H7N9, mRNA-1018 for H5 Only, mRNA-1018 for H7 Only, mRNA-1018 for H5 Only-CG
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,504 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
9
States / cities
Hollywood, Florida • Savannah, Georgia • Lenexa, Kansas + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2025 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate Safety, Immunogenicity, and Lot-to-Lot Consistency of H5N1 Subunit Influenza Virus Vaccine in Healthy Adult Subjects ≥18 Years of Age

NCT02839330
View directory record Official record
Conditions
Avian Influenza
Interventions
aH5N1c, Placebo
Biological
Lead sponsor
Seqirus
Industry
Eligibility
18 Years and older
Enrollment
3,196 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
26
States / cities
Huntsville, Alabama • Chandler, Arizona • Tempe, Arizona + 20 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2024 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

T-cell And General Immune Response to Seasonal Influenza Vaccine (SLVP018) - Year 1, 2009

NCT01987349
View directory record Official record
Conditions
Influenza
Interventions
Fluzone® (intramuscular), FluMist® (intranasal)
Biological
Lead sponsor
Stanford University
Other
Eligibility
8 Years to 100 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 12, 2017 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Group Study of the Safety of and Immune Response to a Single Dose of Bird Flu Vaccine (H7N3) in Healthy Adults

NCT00853255
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
Live Influenza A Vaccine H7N3 (6-2) AA ca Recombinant (A/chicken/British Columbia/CN-6/2004 x A/Ann Arbor/6/60 ca)
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
2010 – 2011
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 3, 2013 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

H5-VLP + GLA-AF Vaccine Trial in Healthy Adult Volunteers

NCT01657929
View directory record Official record
Conditions
Influenza A Subtype H5N1 Infection
Interventions
H5-VLP + GLA-AF, H5-VLP alone, H5-VLP + Alhydrogel(R), Licensed H5N1 vaccine
Biological
Lead sponsor
Access to Advanced Health Institute (AAHI)
Other
Eligibility
18 Years to 49 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
3
States / cities
Daytona Beach, Florida • Dallas, Texas • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 26, 2014 · Synced Oct 3, 2026, 6:53 AM EDT
Completed No phase listed Observational

Respiratory Virus Outpatient Study (FLU 002 Plus)

NCT01056354
View directory record Official record
Conditions
Influenza and Other Novel Respiratory Viruses
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
11,719 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
17
States / cities
San Diego, California • Denver, Colorado • Washington D.C., District of Columbia + 13 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2017 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

B-cell Immunity to Influenza (SLVP017)- Year 1, 2009

NCT02133781
View directory record Official record
Conditions
Influenza
Interventions
Fluzone® 2009-2010 Formula, FluMist® 2009-2010 Formula
Biological
Lead sponsor
Stanford University
Other
Eligibility
8 Years to 100 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jun 6, 2018 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity & Safety of GSK's Avian Flu Vaccine 1557484A Given to Adults Aged 18-64 Years

NCT00771615
View directory record Official record
Conditions
Influenza
Interventions
GSK A/turkey H5N1 Influenza vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
469 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
7
States / cities
Huntsville, Alabama • Anaheim, California • Miami, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2018 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

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

NCT00488046
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
H5N1 (6-2) AA ca Recombinant (A/Hong Kong/213/2003 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
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 20, 2007 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing Multiple Behavioral Science Strategies to Increase Flu-Shot Rates at a Large Retail Pharmacy

NCT04590066
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 Feb 1, 2021 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Learn How Safe, Tolerable and Capable of Producing an Immune Response is, a Modified RNA Vaccine Against Pandemic Influenza

NCT06179446
View directory record Official record
Conditions
Grippe, Influenza, Vaccines
Interventions
pdmFlu vaccine, Placebo, Licensed influenza vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 84 Years
Enrollment
157 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
3
States / cities
New Haven, Connecticut • Hollywood, Florida • New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Oct 3, 2026, 6:53 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 A)

NCT00110279
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
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 21, 2008 · Synced Oct 3, 2026, 6:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase I Study Priming With an Inactivated A/H7N9 Influenza Virus Vaccine With or Without MF59 Adjuvant Followed by Live Attenuated A/H7N9 Influenza Virus Vaccine

NCT02251288
View directory record Official record
Conditions
Avian Influenza, Immunisation
Interventions
Influenza Virus Vaccine, Live Attenuated H7N9 Anhui 2013/AA ca, Influenza Virus Vaccine, Monovalent A/H7N9 A/Shanghai/2/2013, MF59 adjuvant
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 47 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Oct 3, 2026, 6:53 AM EDT