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ClinicalTrials.gov public records Last synced Oct 11, 2026, 7:34 PM EDT

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Showing 97–120 of 1,155 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Influenza vaccine Clear all
Suspended Phase 4 Interventional

TEM-PCR™ Prospective Clinical Utility Study

NCT04248361
View directory record Official record
Conditions
Upper Resp Tract Infection
Interventions
TEM-PCR URI Panel, SOC/Empiric Diagnosis
Diagnostic Test · Other
Lead sponsor
Diatherix Laboratories, LLC
Industry
Eligibility
65 Years and older
Enrollment
314 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
4
States / cities
Athens, Alabama • Huntsville, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 20, 2021 · Synced Oct 11, 2026, 7:34 PM EDT
Terminated Not applicable Interventional Results available

Patient Portal Flu Vaccine Reminders_RCT 4

NCT05052190
View directory record Official record
Conditions
Influenza, Respiratory Tract Infections
Interventions
Text Message R/R with Direct Appointment Schedule Link, Text Message R/R without Direct Appointment Schedule Link, Text Pre-Appointment Reminder, Portal Message R/R with Direct Appointment Schedule Link, Portal Message R/R without Direct Appointment Schedule Link, Portal Pre-Appointment Reminder
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
6 Months and older
Enrollment
239,567 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 11, 2025 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of an H1N1 Influenza Vaccine in People With Asthma

NCT00978120
View directory record Official record
Conditions
H1N1 Influenza Virus
Interventions
H1N1 vaccine high dose, H1N1 vaccine low dose
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Enrollment
390 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
7
States / cities
Atlanta, Georgia • St Louis, Missouri • Winston-Salem, North Carolina + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2012 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Immunologic Response to FluMist vs. Flucelvax

NCT03982069
View directory record Official record
Conditions
Influenza, Human, Immune Response
Interventions
FluMist live attenuated influenza vaccine, Flucelvax inactivated influenza vaccine
Biological
Lead sponsor
Richard Zimmerman MD
Other
Eligibility
4 Years to 21 Years
Enrollment
465 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 14, 2021 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Long-Term Antibody Persistence at 1, 3 and 5 Years After a Fourth Dose of GSK Biologicals' Hib-MenCY-TT Vaccine Compared to ActHIB

NCT00359983
View directory record Official record
Conditions
Neisseria Meningitidis, Haemophilus Influenzae Type b
Interventions
MenHibrix (Hib-MenCY-TT), Hib conjugate vaccine (ActHIB)
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
22 Months to 60 Months
Enrollment
270 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
21
States / cities
Little Rock, Arkansas • Fountain Valley, California • Norwich, Connecticut + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2016 · Synced Oct 11, 2026, 7:34 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating Modes of Influenza Transmission 2b Baseline SAR

NCT07342556
View directory record Official record
Conditions
Influenza (Healthy Volunteers)
Interventions
Exposure to Donors with naturally acquired influenza virus infection
Other
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years to 49 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Oct 11, 2026, 7:34 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 11, 2026, 7:34 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability, and PK of Escalating Doses of Flufirvitide-3 Dry Powder for Inhalation in Healthy Subjects

NCT01990846
View directory record Official record
Conditions
Influenza
Interventions
Flufirvitide 3, Placebo for Flufirvitide-3
Drug
Lead sponsor
Autoimmune Technologies, LLC
Industry
Eligibility
18 Years to 50 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Spartanburg, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 11, 2015 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Simultaneous mRNA COVID-19 and IIV4 Vaccination Study

NCT05028361
View directory record Official record
Conditions
Quality of Life, Injection Site Reaction, Adverse Drug Event, Systemic Reaction
Interventions
mRNA COVID-19, IIV4, Placebo (saline)
Biological · Other
Lead sponsor
Duke University
Other
Eligibility
5 Years and older
Enrollment
348 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
3
States / cities
Baltimore, Maryland • Durham, North Carolina • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 19, 2024 · Synced Oct 11, 2026, 7:34 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Post Marking Study to Evaluate the Safety of FluMist in Children

NCT00569894
View directory record Official record
Conditions
Healthy
Interventions
FLuMist, TIV (Injection), Unvaccinated Control
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
24 Months to 59 Months
Enrollment
29,296 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Mar 8, 2012 · Synced Oct 11, 2026, 7:34 PM EDT
Completed No phase listed Observational

A Study of Fluoroquinolones Exposure and Collagen-Related Serious Adverse Events

NCT03479736
View directory record Official record
Conditions
Retinal Detachment, Achilles Tendon, Aneurysm, Dissecting
Interventions
Oral Fluoroquinolones (FQ), Other Antibiotics, Febrile Illness Not Treated with Antibiotics Will be Analyzed as an Exposure
Drug · Other
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
Not listed
Enrollment
117,911 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Titusville, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 25, 2025 · Synced Oct 11, 2026, 7:34 PM 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 11, 2026, 7:34 PM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

A Study on the Efficacy of a Vaccine Against Influenza in Adults ≥65 Years of Age

NCT07805707
View directory record Official record
Conditions
Influenza, Human
Interventions
mRNA Seasonal Flu vaccine, Licensed Influenza Vaccine
Combination Product
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
65 Years and older
Enrollment
54,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
161
States / cities
Anniston, Alabama • Guntersville, Alabama • Glendale, Arizona + 128 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Dose Ranging Study to Evaluate Immunogenicity and Safety of Adjuvanted or Non-adjuvanted Cell Culture-derived H5N1 Influenza Vaccine in Young Adults (18-40 Years Old)

NCT00812019
View directory record Official record
Conditions
Influenza
Interventions
Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 3.75_0%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 3.75_25%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 3.75_50%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 3.75_100%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 7.5_0%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 7.5_25%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 7.5_50%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 7.5_100%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 15_0%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 15_25%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 15_50%MF59, Cell Culture-Derived H5N1 Subunit Influenza Vaccine, 15_100%MF59
Biological
Lead sponsor
Seqirus
Industry
Eligibility
18 Years to 40 Years
Enrollment
753 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 24, 2020 · Synced Oct 11, 2026, 7:34 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Polk COVID-19 and Flu Response

NCT04682132
View directory record Official record
Conditions
Covid19
Interventions
COVID-19 antigen and antibody tests, and influenza rapid test
Diagnostic Test
Lead sponsor
Polk County Fire Rescue
Government
Eligibility
18 Years and older
Enrollment
686 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Bartow, Florida
Source: ClinicalTrials.gov public record
Updated Apr 21, 2021 · Synced Oct 11, 2026, 7:34 PM 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 11, 2026, 7:34 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

A Study to Learn About mRNA Vaccines Against Influenza in Adults

NCT07431853
View directory record Official record
Conditions
Healthy Adults
Interventions
Vaccine Candidate #1, Vaccine Candidate #2, Vaccine Candidate #3, Vaccine Candidate #4, Vaccine Candidate #5, Vaccine Candidate #6, TIV1 or TIV2
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
770 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
15
States / cities
Mobile, Alabama • Walnut Creek, California • Milford, Connecticut + 12 more
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Responses to Influenza Vaccine in Patients With Mitochondrial Disorders (MELAS)

NCT01831934
View directory record Official record
Conditions
MELAS Syndrome
Interventions
Fluzone®
Biological
Lead sponsor
Stanford University
Other
Eligibility
13 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 1 Interventional Results available

Safety Study to Evaluate FluMist in Immunocompromised Children

NCT00112112
View directory record Official record
Conditions
Cancer
Interventions
FluMist, Placebo
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
5 Years to 17 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
5
States / cities
Rochester, New York • Stony Brook, New York • Memphis, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pandemic Influenza Plasmid DNA Vaccines (Needle)

NCT00709800
View directory record Official record
Conditions
Influenza
Interventions
VCL-IPT1, VCL-IPM1, PBS
Biological
Lead sponsor
Vical
Industry
Eligibility
18 Years to 45 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
3
States / cities
San Diego, California • Baltimore, Maryland • Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Feb 12, 2009 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Pediatric Safety and Immunogenicity Study of Cell-Culture Derived and Egg-based Subunit Influenza Vaccines in Healthy Children and Adolescents

NCT00645411
View directory record Official record
Conditions
Influenza
Interventions
Cell culture-derived influenza subunit vaccine (cTIV), Egg derived influenza subunit vaccine (eTIV)
Biological
Lead sponsor
Novartis
Industry
Eligibility
3 Years to 17 Years
Enrollment
3,604 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
16
States / cities
Fayetteville, Arkansas • Downey, California • Bardstown, Kentucky + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 23, 2015 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immune Response Study of GSK Biologicals' Influenza Virus Vaccine 1388442A Compared With Fluarix

NCT00693706
View directory record Official record
Conditions
Influenza
Interventions
Trivalent influenza vaccine GSK 138842A, Fluarix
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 49 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
2
States / cities
Miami, Florida • Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 8, 2018 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Fluzone® Quadrivalent, Fluzone® Intradermal Quadrivalent, and Fluzone® High-Dose, Influenza Vaccines in Adults

NCT02563093
View directory record Official record
Conditions
Influenza
Interventions
Fluzone Quadrivalent vaccine, 2015-2016 formulation, No Preservative, Fluzone Intradermal Quadrivalent vaccine, 2015-2016 formulation, Fluzone High-Dose vaccine, 2015-2016 formulation
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
4
States / cities
Santa Rosa, California • Council Bluffs, Iowa • Metairie, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2016 · Synced Oct 11, 2026, 7:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Atopic Dermatitis Research Network (ADRN) Influenza Vaccine Study

NCT01737710
View directory record Official record
Conditions
Dermatitis, Atopic
Interventions
Fluzone® Intradermal Vaccine, Fluzone® (Intramuscular) vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years · Female only
Enrollment
368 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
5
States / cities
Denver, Colorado • Chicago, Illinois • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2017 · Synced Oct 11, 2026, 7:34 PM EDT