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ClinicalTrials.gov public records Last synced Oct 6, 2026, 2:02 PM EDT

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Showing 49–68 of 68 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: H1N1 Influenza Virus Clear all
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Pivotal, Multicenter, Observer-Blind, Randomized Study of Influenza A (H1N1)2009 Monovalent Subunit Vaccine With and Without Adjuvant in Children Ages 6 to <36 Months

NCT00996307
View directory record Official record
Conditions
Influenza
Interventions
MF59-eH1N1_f
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
6 Months to 35 Months
Enrollment
654 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
28
States / cities
Bentonville, Arkansas • Fort Smith, Arkansas • Canoga Park, California + 25 more
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 6, 2026, 2:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Immunogenicity of Novel H1N1 Vaccination Among HIV-Infected Compared to HIV-Uninfected Persons

NCT00996970
View directory record Official record
Conditions
Influenza, HIV Infections
Interventions
Not listed
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2022
U.S. locations
3
States / cities
San Diego, California • Bethesda, Maryland • Portsmouth, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 22, 2023 · Synced Oct 6, 2026, 2:02 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 6, 2026, 2:02 PM EDT
Completed No phase listed Observational

Characteristics and Outcomes of Intensive Care Unit Patients Admitted With Novel H1N1 Influenza or Seasonal Influenza

NCT01011582
View directory record Official record
Conditions
H1N1 Influenza, Seasonal Influenza
Interventions
Not listed
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
12 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 8, 2013 · Synced Oct 6, 2026, 2:02 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Kinetics of the Immune Response to Inactivated Influenza Vaccine in Healthy Adults

NCT03743688
View directory record Official record
Conditions
Influenza, Influenza, Human, Vaccine Reaction, Influenza A, Influenza Type B, Influenza A H1N1, Influenza A H3N2
Interventions
Influenza Vaccine Recipients
Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 5, 2019 · Synced Oct 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Results available

H1N1 Vaccine at Two Dose Levels in HIV Positive Adults

NCT00992433
View directory record Official record
Conditions
Influenza
Interventions
Inactivated Influenza H1N1 vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
6
States / cities
Iowa City, Iowa • Baltimore, Maryland • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated May 16, 2012 · Synced Oct 6, 2026, 2:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety Study of an Oral Vaccine to Prevent Seasonal Influenza

NCT01688297
View directory record Official record
Conditions
Influenza
Interventions
VXA-A1.1 Oral Vaccine, VXA Placebo Tablet
Biological
Lead sponsor
Vaxart
Industry
Eligibility
18 Years to 49 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated May 12, 2017 · Synced Oct 6, 2026, 2:02 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 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Peds Sanofi H1N1 Influenza Vaccine Administered at Two Dose Levels

NCT00944073
View directory record Official record
Conditions
Influenza
Interventions
Influenza Virus Vaccine, Monovalent A/H1N1 A/California/7/2009 NYMC X-179A
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 17 Years
Enrollment
583 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
9
States / cities
Baltimore, Maryland • Kansas City, Missouri • St Louis, Missouri + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2015 · Synced Oct 6, 2026, 2:02 PM EDT
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 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Results available

Safety of and Immune Response to an H1N1 Influenza Virus Vaccine in HIV Infected Children and Youth

NCT00992836
View directory record Official record
Conditions
HIV Infections, H1N1 Influenza Virus
Interventions
Influenza A (H1N1) 2009 monovalent vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
4 Years to 25 Years
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
35
States / cities
Birmingham, Alabama • Alhambra, California • La Jolla, California + 25 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2021 · Synced Oct 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Results available

Exploring Safety & Clinical Benefit of Anti-Influenza Immunoglobulin Intravenous in Hospitalized Adults With Influenza A

NCT03315104
View directory record Official record
Conditions
Influenza A H3N2, Influenza A H1N1
Interventions
FLU-IGIV, Placebo for FLU-IGIV
Biological · Other
Lead sponsor
Emergent BioSolutions
Industry
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
42
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 34 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Oct 6, 2026, 2:02 PM EDT
Completed Phase 3 Interventional Results available

A Study of Intravenous Zanamivir Versus Oral Oseltamivir in Adults and Adolescents Hospitalized With Influenza

NCT01231620
View directory record Official record
Conditions
Influenza, Human
Interventions
Zanamivir, Placebo to match zanamivir, Oseltamivir, Placebo to match oseltamivir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
16 Years and older
Enrollment
626 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
40
States / cities
Birmingham, Alabama • Phoenix, Arizona • Chula Vista, California + 37 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Oct 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Results available

Safety of and Immune Response to an H1N1 Influenza Vaccine in HIV Infected Pregnant Women

NCT00992017
View directory record Official record
Conditions
HIV Infections, H1N1 Influenza Virus
Interventions
Influenza A (H1N1) monovalent vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 39 Years · Female only
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
29
States / cities
Alhambra, California • La Jolla, California • Long Beach, California + 22 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2021 · Synced Oct 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

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

NCT00985088
View directory record Official record
Conditions
Influenza
Interventions
GSK2340274A, GSK2340273A, Saline placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
1,343 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
10
States / cities
Huntsville, Alabama • Jacksonville, Florida • Miami, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2017 · Synced Oct 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Different Formulations of an A/H1N1 Pandemic Vaccine in Healthy Adults and the Elderly

NCT00953524
View directory record Official record
Conditions
Influenza, Swine-origin A/H1N1 Influenza
Interventions
Monovalent Subvirion A/H1N1 Influenza vaccine (7.5 µg of HA), Monovalent Subvirion A/H1N1 Influenza vaccine (15 µg of HA), Monovalent Subvirion A/H1N1 Influenza vaccine (30 µg of HA), Normal saline solution (placebo)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
849 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
15
States / cities
Hoover, Alabama • Chandler, Arizona • Phoenix, Arizona + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2014 · Synced Oct 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Sanofi H1N1 Influenza Vaccine Administered at Two Dose Levels in Adult and Elderly Populations

NCT00943631
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 and older
Enrollment
406 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
3
States / cities
Baltimore, Maryland • Durham, North Carolina • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 31, 2012 · Synced Oct 6, 2026, 2:02 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 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Sanofi H1N1 Influenza Vaccine Administered at Different Dose Levels With and Without AS03 Adjuvant in Healthy Adult and Elderly Populations

NCT00963157
View directory record Official record
Conditions
Influenza
Interventions
AS03, Influenza Virus Vaccine, Monovalent A/H1N1 A/California/7/2009 NYMC X-179A
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
789 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
7
States / cities
Stanford, California • Decatur, Georgia • Iowa City, Iowa + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 24, 2014 · Synced Oct 6, 2026, 2:02 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Clinical Trial of CSL's 2009 H1N1 Influenza Vaccine (CSL425) in a Healthy Pediatric Population in the USA

NCT00958243
View directory record Official record
Conditions
Influenza
Interventions
CSL's 2009 H1N1 Influenza Vaccine (CSL425), Placebo
Biological
Lead sponsor
Seqirus
Industry
Eligibility
6 Months to 9 Years
Enrollment
473 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
13
States / cities
Chandler, Arizona • Melbourne, Florida • Bardstown, Kentucky + 10 more
Source: ClinicalTrials.gov public record
Updated May 23, 2018 · Synced Oct 6, 2026, 2:02 PM EDT