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

Immunogenicity and Safety Study of Different Formulations of GlaxoSmithKline (GSK) Biologicals H7N1 Influenza Vaccine Administered to Adults 21 to 64 Years of Age

NCT01934127
View directory record Official record
Conditions
Influenza
Interventions
Investigational H7N1 vaccine GSK2789869A, Investigational H7N1 vaccine GSK2789868A, Placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
21 Years to 64 Years
Enrollment
427 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
6
States / cities
Miami, Florida • Stockbridge, Georgia • Las Vegas, Nevada + 3 more
Source: ClinicalTrials.gov public record
Updated May 7, 2017 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of a Live Attenuated H7N9 Influenza Virus Vaccine in Healthy Adults

NCT01995695
View directory record Official record
Conditions
Influenza A Virus, H7N9 Subtype
Interventions
Live attenuated H7N9 A/Anhui/13 ca influenza virus vaccine, Inactivated subvirion H7N9 influenza vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jul 26, 2016 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Not applicable Interventional

Effectiveness of Influenza Vaccine Reminder Systems

NCT01852656
View directory record Official record
Conditions
Asthma, Chronic Obstructive Pulmonary Disease
Interventions
Postcard and IVR Reminder Group, Postcard Only Reminder Group, IVR Only Reminder Group
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
19 Years to 64 Years
Enrollment
12,255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 13, 2013 · Synced Jun 11, 2026, 5:30 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pilot Study of Genotypic Analysis

NCT00421837
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
50 Years and older
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 15, 2013 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

DMID 21-0041; Influenza CVD 59000

NCT05666245
View directory record Official record
Conditions
Influenza
Interventions
Personal Protective Equipment (PPE) - Under High Air Hygiene, No Intervention - Under High Air Hygiene, Personal Protective Equipment (PPE) - Under Low Air Hygiene, No Intervention - Under Low Air Hygiene
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 59 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
Baltimore, Maryland • College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 25, 2025 · Synced Jun 11, 2026, 5:30 AM EDT
Not listed No phase listed Observational

Clinical Validation of the LumiraDx SARS-CoV-2 & Flu A/B Test in Detecting and Differentiating Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), Influenza A (Flu A), and/or Influenza B (Flu B)

NCT05787444
View directory record Official record
Conditions
SARS-CoV-2, Influenza A, Influenza B, Asymptomatic COVID-19
Interventions
LumiraDx SARS-CoV-2 & Flu A/B
Diagnostic Test
Lead sponsor
LumiraDx UK Limited
Industry
Eligibility
2 Years and older
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Cullman, Alabama
Source: ClinicalTrials.gov public record
Updated May 7, 2023 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Clinical Study to Evaluate the Immunogenicity and Safety of an Adjuvanted Quadrivalent Influenza Vaccine Compared With a Licensed Quadrivalent Vaccine in Adults 50 to 64 Years of Age

NCT05044195
View directory record Official record
Conditions
Influenza, Human
Interventions
aQIV, Comparator QIV
Biological
Lead sponsor
Seqirus
Industry
Eligibility
50 Years to 64 Years
Enrollment
2,044 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
12
States / cities
Mobile, Alabama • Tempe, Arizona • Atlantis, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Jun 11, 2026, 5:30 AM EDT
Completed No phase listed Observational Results available

Evaluating Modes of Influenza Transmission Observational Study of Community Acquired Influenza

NCT01769430
View directory record Official record
Conditions
Influenza Virus Infection Transmission in Humans
Interventions
Observational Study of influenza aerosol shedding -- No Intervention
Other
Lead sponsor
University of Maryland, College Park
Other
Eligibility
10 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 24, 2025 · Synced Jun 11, 2026, 5:30 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Pilot Influenza Challenge Study

NCT07063849
View directory record Official record
Conditions
Influenza
Interventions
A/Texas
Biological
Lead sponsor
Daniel Hoft, MD, PhD
Other
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Co-Administration of AS03 Adjuvanted A/H7N9 IIV With IIV4

NCT03318315
View directory record Official record
Conditions
Avian Influenza, Influenza, Influenza Immunisation
Interventions
AS03, Inactivated influenza H7N9 vaccine, Influenza Virus Quadrivalent Inactivated Vaccine, Phosphate Buffered Saline (PBS) diluent
Drug · Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 64 Years
Enrollment
149 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
4
States / cities
Birmingham, Alabama • Baltimore, Maryland • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2020 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Different Formulations of Monovalent Influenza A/Astrakhan/3212/2020 Like (H5N8) Virus Vaccine With AS03 Adjuvant System in Medically Stable Adults

NCT05975840
View directory record Official record
Conditions
Influenza, Human
Interventions
FLU Q-PAN H5N8 375_B, FLU Q-PAN H5N8 375_A, FLU Q-PAN H5N8 750_B, FLU Q-PAN H5N8 750_A
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
518 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
20
States / cities
Anniston, Alabama • Mobile, Alabama • Tempe, Arizona + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2025 · Synced Jun 11, 2026, 5:30 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Sanofi Pasteur Quadrivalent Influenza Vaccine (QIV) Pregnancy Registry

NCT01945424
View directory record Official record
Conditions
Pregnancy, Influenza
Interventions
Quadrivalent Influenza Vaccine (QIV)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older · Female only
Enrollment
244 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
5
States / cities
San Diego, California • Albany, New York • Columbus, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 11, 2020 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Booster Trial to 07-0019 With A/Anhui/05 With and Without MF59

NCT00912496
View directory record Official record
Conditions
Influenza
Interventions
MF-59, A/Anhui/05, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
637 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
10
States / cities
Atlanta, Georgia • Iowa City, Iowa • Baltimore, Maryland + 6 more
Source: ClinicalTrials.gov public record
Updated May 13, 2013 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Not applicable Interventional

Assessing Fever Rates in Children Ages 24 to 59 Months After Live Attenuated Influenza Vaccine (LAIV) or Inactivated Influenza Vaccines (IIV) Using Text Messaging for U.S. Influenza Vaccines in 2012-2013 & 2013-2014

NCT01764269
View directory record Official record
Conditions
Fever
Interventions
text message surveillance for fever
Other
Lead sponsor
Columbia University
Other
Eligibility
24 Months to 59 Months
Enrollment
656 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
2
States / cities
Atlanta, Georgia • New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 23, 2014 · Synced Jun 11, 2026, 5:30 AM 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 8, 2013 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Development of Childhood Anti-Influenza Immunity

NCT03673345
View directory record Official record
Conditions
Influenza, Influenza Immunisation
Interventions
Influenza Virus Quadrivalent Inactivated Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Months to 15 Years
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 17, 2022 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Role of CD4+ Memory Phenotype, Memory, and Effector T Cells in Vaccination and Infection

NCT03453801
View directory record Official record
Conditions
Influenza, Healthy
Interventions
Fluzone®, FluMist®
Biological
Lead sponsor
Stanford University
Other
Eligibility
6 Months to 10 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2020 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

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

NCT00943488
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
408 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
4
States / cities
Iowa City, Iowa • Cincinnati, Ohio • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 30, 2012 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Immunogenicity and Safety of Pandemic Influenza Vaccines in Adults Aged 18 - 49 Years Old

NCT01236040
View directory record Official record
Conditions
Influenza
Interventions
GSK Biologicals' investigational vaccine GSK2590066A, GSK Biologicals' investigational vaccine GSK2592984A, GSK Biologicals' investigational vaccine GSK2340274A, GSK Biologicals' investigational vaccine GSK2340273A, Placebo
Biological · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 49 Years
Enrollment
521 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
4
States / cities
Anaheim, California • Stockbridge, Georgia • Lenexa, Kansas + 1 more
Source: ClinicalTrials.gov public record
Updated May 9, 2017 · Synced Jun 11, 2026, 5:30 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Strengthening Intentions

NCT07222774
View directory record Official record
Conditions
Influenza Vaccination, Behavior And Behavior Mechanism
Interventions
Experimental
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
Not listed
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of mRNA-1011.1, mRNA-1011.2, and mRNA-1012.1 Candidate Seasonal Influenza Vaccines in Healthy Adults

NCT05827068
View directory record Official record
Conditions
Seasonal Influenza
Interventions
mRNA-1011.1, mRNA-1011.2, mRNA-1012.1, mRNA-1010, mRNA-1010.2, mRNA-1010.3
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
50 Years to 75 Years
Enrollment
698 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
22
States / cities
Lakewood, California • Long Beach, California • Fort Collins, Colorado + 19 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2025 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Oseltamivir Treatment for Children Less Than 24 Months of Age With Influenza

NCT00391768
View directory record Official record
Conditions
Influenza
Interventions
oseltamivir (Tamiflu®)
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 23 Months
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
29
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Long Beach, California + 24 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2013 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Age and Response to Flu Vaccines

NCT03328325
View directory record Official record
Conditions
Influenza, Influenza Immunisation
Interventions
Influenza Virus Quadrivalent Inactivated Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
9 Years to 99 Years
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
2
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated May 23, 2021 · Synced Jun 11, 2026, 5:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Reactogenicity, Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Investigational Supra-seasonal Universal Influenza Vaccines - Inactivated (SUIVs) (GSK3816302A) in Healthy Adults Aged 18 to 39 Years

NCT03275389
View directory record Official record
Conditions
Influenza, Human
Interventions
D-SUIV cH8/1N1+AS03, D-SUIV cH5/1N1+AS03, D-SUIV cH11/1N1+AS03, D-SUIV cH8/1N1+AS01, D-SUIV cH5/1N1+AS01, D-SUIV cH11/1N1+AS01, D-SUIV cH8/1N1, D-SUIV cH5/1N1, D-SUIV cH11/1N1, Placebo, Fluarix Quadrivalent
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 39 Years
Enrollment
470 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
5
States / cities
South Miami, Florida • Wichita, Kansas • Rochester, New York + 2 more
Source: ClinicalTrials.gov public record
Updated May 6, 2021 · Synced Jun 11, 2026, 5:30 AM EDT