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ClinicalTrials.gov public records Last synced Oct 2, 2026, 7:54 PM EDT

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Showing 25–48 of 68 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Influenza A H1N1 Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Comparative Safety and Immunogenicity of VAX128A, VAC128B and VAX128C Novel H1N1 Influenza Vaccine in Healthy Adults

NCT01172054
View directory record Official record
Conditions
Influenza
Interventions
VAX128, Placebo
Biological
Lead sponsor
VaxInnate Corporation
Industry
Eligibility
18 Years and older
Enrollment
292 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
2
States / cities
Miami, Florida • Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 31, 2012 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of H1N1 Vaccines in Children Aged 6 Months to Less Than 9 Years of Age

NCT00976820
View directory record Official record
Conditions
Influenza
Interventions
GSK2340274A, GSK2340273A
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 8 Years
Enrollment
323 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
17
States / cities
Conway, Arkansas • Little Rock, Arkansas • Sacramento, California + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2017 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Immunologic Response to Inactivated Vaccine for Novel H1N1 Virus

NCT01023711
View directory record Official record
Conditions
Influenza
Interventions
Inactivated H1N1 vaccine
Biological
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated May 12, 2015 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 4 Interventional Results available

H1N1 Influenza Vaccine Immunogenicity in HIV-1 Infected Patients

NCT01111162
View directory record Official record
Conditions
HIV Infections
Interventions
H1N1 vaccination
Biological
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 12, 2016 · Synced Oct 2, 2026, 7:54 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Effect of Age and Prior Immunity on Response to H1N1 Vaccines in Children

NCT01097941
View directory record Official record
Conditions
2009 H1N1 Influenza
Interventions
Live Attenuated H1N1 Influenza Vaccine, Influenza A (H1N1) 2009 Monovalent Vaccine, Influenza A (H1N1) 2009 Monovalent Vaccine/ Influenza A (H1N1) Monovalent Vaccine Live
Biological
Lead sponsor
University of Rochester
Other
Eligibility
4 Years to 9 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Sep 24, 2015 · Synced Oct 2, 2026, 7:54 PM 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 2, 2026, 7:54 PM EDT
Completed No phase listed Observational

Laboratory Study of Licensed H1N1 Influenza Vaccines in HIV-1 Perinatally Infected Children and Youth

NCT01484522
View directory record Official record
Conditions
HIV-1 Infection, H1N1, Influenza, Flu
Interventions
FluMist, Fluvirin, Fluzone
Biological
Lead sponsor
International Maternal Pediatric Adolescent AIDS Clinical Trials Group
Network
Eligibility
6 Months to 25 Years
Enrollment
149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
16
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 13 more
Source: ClinicalTrials.gov public record
Updated Dec 2, 2011 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

H1N1v Virus Challenge Study in Healthy Subjects

NCT04044352
View directory record Official record
Conditions
Influenza
Interventions
Influenza A/Bethesda/MM2/H1N1 Challenge
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
4
States / cities
Baltimore, Maryland • St Louis, Missouri • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 28, 2021 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Phase 2 Influenza A Challenge Study Following Oral Administration of an H1N1 HA Ad-Vector Seasonal Flu Vaccine

NCT02918006
View directory record Official record
Conditions
Influenza
Interventions
VXA-A1.1, Fluzone®, Placebo Tablets, Saline Solution for Placebo IM Injection
Biological · Other
Lead sponsor
Vaxart
Industry
Eligibility
18 Years to 49 Years
Enrollment
179 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Costa Mesa, California
Source: ClinicalTrials.gov public record
Updated Oct 6, 2022 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

H1N1 Vaccine in Pregnant Women

NCT00963430
View directory record Official record
Conditions
Influenza
Interventions
Inactivated H1N1 Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 39 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
5
States / cities
St Louis, Missouri • Durham, North Carolina • Nashville, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2012 · Synced Oct 2, 2026, 7:54 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Study of the Pharmacology of Tamiflu in Pregnancy

NCT01203527
View directory record Official record
Conditions
H1N1 Influenza Treatment During Pregnancy
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
14 Years to 45 Years · Female only
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2012
U.S. locations
4
States / cities
Indianapolis, Indiana • Pittsburgh, Pennsylvania • Galveston, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2013 · Synced Oct 2, 2026, 7:54 PM EDT
Completed No phase listed Observational

Characterization of the Innate Immune Response in Healthy NIH Employees at Baseline and After Immunization With the H1N1 Vaccine

NCT00995527
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 6, 2017 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of H1N1 Vaccine With Trivalent Inactivated Seasonal Influenza Vaccine in Adults

NCT00985673
View directory record Official record
Conditions
Influenza
Interventions
GSK2340274A, GSK2340273A, Seasonal trivalent influenza vaccine (TIV), Saline placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
19 Years to 40 Years
Enrollment
611 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
4
States / cities
Stockbridge, Georgia • Raleigh, North Carolina • Austin, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Sanofi Pasteur, TIV + H1N1, Pediatric Population

NCT00943202
View directory record Official record
Conditions
Influenza
Interventions
Inactivated H1N1 Vaccine, Trivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 17 Years
Enrollment
531 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
8
States / cities
Atlanta, Georgia • Iowa City, Iowa • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 22, 2013 · Synced Oct 2, 2026, 7:54 PM 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 2, 2026, 7:54 PM EDT
Completed No phase listed Observational

Clinical Characteristics and Outcomes in Patients Diagnosed With Novel Influenza A (H1N1)

NCT01024673
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2021
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 23, 2021 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 2 Interventional Results available

Comparing the Efficacy, Safety, and Tolerability of Combination Antivirals (Amantadine, Ribavirin, Oseltamivir) Versus Oseltamivir for the Treatment of Influenza in Adults at Risk for Complications

NCT01227967
View directory record Official record
Conditions
Influenza
Interventions
Amantadine, Ribavirin, Oseltamivir, Oseltamivir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
881 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
69
States / cities
Birmingham, Alabama • Chandler, Arizona • Glendale, Arizona + 58 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 2, 2026, 7:54 PM EDT
Completed No phase listed Observational

Collection and Extraction of Respiratory Specimens

NCT01083511
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
QIAGEN Gaithersburg, Inc
Industry
Eligibility
Not listed
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
3
States / cities
Tucson, Arizona • Chapel Hill, North Carolina • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 14, 2014 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacodynamic Open-Label Trial With VXA-A1.1 Oral H1 Vaccine in Healthy Adults

NCT03121339
View directory record Official record
Conditions
Seasonal Influenza Preventative Vaccine Pharmacodynamics
Interventions
VXA-A1.1 H1 Tablet Vaccine (small), VXA-A1.1 H1 Tablet Vaccine (large)
Biological
Lead sponsor
Vaxart
Industry
Eligibility
18 Years to 49 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 30, 2018 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety, Immunogenicity, and Relative Efficacy of H1N1 Vaccines in Adults Aged 18 Years and Older

NCT00979602
View directory record Official record
Conditions
Influenza
Interventions
GSK2340274A, GSK2340273A
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
4,048 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
25
States / cities
Mesa, Arizona • Phoenix, Arizona • Los Angeles, California + 21 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2018 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of A/H1N1-SOIV (Swine Flu) Vaccine With and Without Adjuvant in Children (3 to < 9 Years)

NCT00972816
View directory record Official record
Conditions
Influenza
Interventions
MF59-eH1N1
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
3 Years to 8 Years
Enrollment
1,357 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
34
States / cities
Downey, California • Madera, California • Paramount, California + 29 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Three Dosage Levels of Swine Influenza Vaccine in Children Ages 3 to <9 Years, Adolescents 9 to <18 Years, Adults 18 to <65 Years and Elderly 65 Years and Older.

NCT01855945
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 17, 2016 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 1 Interventional

VRC 308: An Open-Label Phase I Study of the Safety and Immunogenicity of an Investigational H1 DNA Influenza Vaccine, VRC-FLUDNA057-00-VP, in Healthy Adults 18-70 Years Old

NCT00973895
View directory record Official record
Conditions
Influenza A Virus, H1N1 Subtype, Novel Swine-Origin
Interventions
VRC-FLUDNA057-00-VP
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 2, 2026, 7:54 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Seasonal Influenza DNA Vaccine Prime With Trivalent Inactivated Vaccine (TIV) Boost Compared to TIV Alone

NCT01498718
View directory record Official record
Conditions
Influenza
Interventions
DNA vaccine, TIV
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
4
States / cities
Decatur, Georgia • St Louis, Missouri • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2016 · Synced Oct 2, 2026, 7:54 PM EDT