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ClinicalTrials.gov public records Last synced Oct 15, 2026, 1:41 AM EDT

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Showing 457–480 of 1,157 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Influenza vaccine Clear all
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 31, 2012 · Synced Oct 15, 2026, 1:41 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Three Influenza Vaccines in Children Aged 4 Years Old to Less Than 18 Years Old

NCT01992107
View directory record Official record
Conditions
Influenza
Interventions
QIVc, TIV1c, TIV2c
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
4 Years to 18 Years
Enrollment
2,333 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
88
States / cities
Huntsville, Alabama • Mobile, Alabama • Chandler, Arizona + 73 more
Source: ClinicalTrials.gov public record
Updated Dec 8, 2015 · Synced Oct 15, 2026, 1:41 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Flublok v. Standard Dose Vaccine Effectiveness Among Kaiser Permanente Northern California Adults 18-64 Years

NCT03694392
View directory record Official record
Conditions
Influenza, Pneumonia, Lower Respiratory Tract Infection, Acute Myocardial Infarction, Congestive Heart Failure, Stroke
Interventions
Flublok Quadrivalent, Standard Dose Inactivated Influenza Vaccine (SD-IIV)
Biological
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years to 64 Years
Enrollment
2,776,278 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Oct 15, 2026, 1:41 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Two Doses of H5N1 Influenza Vaccine in Healthy Adults

NCT01776541
View directory record Official record
Conditions
Pandemic H5N1 Influenza
Interventions
Adjuvanted H5N1 pandemic influenza vaccine
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
18 Years to 64 Years
Enrollment
979 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
4
States / cities
Miami, Florida • St Louis, Missouri • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2015 · Synced Oct 15, 2026, 1:41 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety/Efficacy Study of Seqirus A/H7N9 IIV With or Without MF59(R) Adjuvant to Prevent Avian Influenza

NCT03682120
View directory record Official record
Conditions
Avian Influenza, Influenza Immunisation
Interventions
A/H7N9, MF59, Phosphate Buffered Saline (PBS) diluent
Biological · Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
372 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
7
States / cities
Birmingham, Alabama • St Louis, Missouri • Cincinnati, Ohio + 4 more
Source: ClinicalTrials.gov public record
Updated May 17, 2021 · Synced Oct 15, 2026, 1:41 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

A Study to Evaluate the Immune Response and Safety of a Vaccine Against Influenza in Adults 18-64 Years of Age

NCT07851246
View directory record Official record
Conditions
Influenza, Human
Interventions
mRNA Seasonal Flu vaccine, Comparator 1, Comparator 2
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
3,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
12
States / cities
Glendale, Arizona • Tucson, Arizona • San Diego, California + 9 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 15, 2026, 1:41 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 15, 2026, 1:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Home Administration of FluMist by Parents/Caregivers

NCT01938170
View directory record Official record
Conditions
Influenza
Interventions
FluMist
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
2 Years to 17 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 26, 2016 · Synced Oct 15, 2026, 1:41 AM EDT
Completed Phase 2 Interventional Results available

A Study of MHAA4549A as Monotherapy for Acute Uncomplicated Seasonal Influenza A in Otherwise Healthy Adults

NCT02623322
View directory record Official record
Conditions
Influenza A
Interventions
MHAA4549A, Placebo
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
38
States / cities
Athens, Alabama • Costa Mesa, California • Fountain Valley, California + 32 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced Oct 15, 2026, 1:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Immunogenicity of Seasonal Influenza by Delivery Directly to Ileum

NCT01761123
View directory record Official record
Conditions
Seasonal Influenza
Interventions
VXA-A1.1
Biological
Lead sponsor
Vaxart
Industry
Eligibility
18 Years to 49 Years · Male only
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 10, 2014 · Synced Oct 15, 2026, 1:41 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 12, 2020 · Synced Oct 15, 2026, 1:41 AM EDT
Completed Phase 1 Interventional Results available

A Study of Intravenous Tamiflu (Oseltamivir) in Children With Influenza

NCT01033734
View directory record Official record
Conditions
Influenza
Interventions
oseltamivir [Tamiflu]
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
1 Year to 12 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
36
States / cities
Los Angeles, California • Oakland, California • Aurora, Colorado + 30 more
Source: ClinicalTrials.gov public record
Updated Aug 24, 2016 · Synced Oct 15, 2026, 1:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase I Safety and Immunogenicity Study of VAX102 [Flagellin.HuM2e] Influenza Vaccine in Healthy Adults

NCT00603811
View directory record Official record
Conditions
Influenza Infection
Interventions
VAX102 [Flagellin.HuM2e], Placebo
Biological
Lead sponsor
VaxInnate Corporation
Industry
Eligibility
18 Years to 49 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
2
States / cities
Lenexa, Kansas • Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 23, 2014 · Synced Oct 15, 2026, 1:41 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Adaptive Immune Responses and Repertoire in Influenza Vaccination and Infection (SLVP031)

NCT03028987
View directory record Official record
Conditions
Influenza
Interventions
Fluzone®, FluMist®
Biological
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 49 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2017 · Synced Oct 15, 2026, 1:41 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Flucelvax (TIVc or QIVc) Pregnancy Registry

NCT03438487
View directory record Official record
Conditions
Influenza, Human, Pregnancy, Birth Defect
Interventions
Flucelvax Trivalent Influenza Vaccine, Flucelvax Quadrivalent Influenza Vaccine
Biological
Lead sponsor
Seqirus
Industry
Eligibility
Female only
Enrollment
692 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 4, 2022 · Synced Oct 15, 2026, 1:41 AM 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 15, 2026, 1:41 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Trial to Investigate Viral Shedding in Healthy Children Vaccinated With Vaccine Virus Liquid (CAIV-T)

NCT00192387
View directory record Official record
Conditions
Influenza
Interventions
CAIV-T, Liquid
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
6 Months to 18 Months
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001
U.S. locations
1
States / cities
Monroe, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 13, 2021 · Synced Oct 15, 2026, 1:41 AM EDT
Completed Not applicable Interventional

Personalized Nudging to Increase Influenza Vaccinations

NCT06566534
View directory record Official record
Conditions
Influenza, Human
Interventions
Reminder
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
77,482 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 16, 2025 · Synced Oct 15, 2026, 1:41 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Influenza Vaccine in Lung Transplant Patients - Persistence of Antibodies

NCT04531787
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 23, 2020 · Synced Oct 15, 2026, 1:41 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 15, 2026, 1:41 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Age and Prior Immunity to Response to Seasonal Influenza Vaccines in Children

NCT01246999
View directory record Official record
Conditions
Influenza
Interventions
Live attenuated Influenza vaccine, Trivalent Influenza Vaccine, TIV followed by LAIV, LAIV followed by TIV
Biological
Lead sponsor
University of Rochester
Other
Eligibility
2 Years to 9 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
2
States / cities
Lebanon, New Hampshire • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 29, 2016 · Synced Oct 15, 2026, 1:41 AM 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 15, 2026, 1:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability, and Immunogenicity of VAL-339851 in Healthy Adult Subjects

NCT03345043
View directory record Official record
Conditions
Influenza
Interventions
VAL-339851, Placebo
Biological · Other
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 49 Years
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 11, 2021 · Synced Oct 15, 2026, 1:41 AM EDT
Completed Not applicable Interventional

Clinical Evaluation of the Panbio™ COVID-19/Flu A&B Rapid Panel Professional Use Device and the Panbio™ COVID-19/Flu A&B Rapid Panel Self-Test Device

NCT05715515
View directory record Official record
Conditions
COVID-19, Influenza A, Influenza Type B
Interventions
Panbio™
Diagnostic Test
Lead sponsor
Abbott Rapid Dx
Industry
Eligibility
Not listed
Enrollment
903 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Easley, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 9, 2023 · Synced Oct 15, 2026, 1:41 AM EDT