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ClinicalTrials.gov public records Last synced Oct 18, 2026, 8:09 AM EDT

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Showing 241–264 of 1,159 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Fluzone Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Pilot of Cohort of Households for Influenza Monitoring and Evaluation in Seattle

NCT04141930
View directory record Official record
Conditions
Influenza, Respiratory Viral Infection
Interventions
Baloxavir Marboxil
Drug
Lead sponsor
University of Washington
Other
Eligibility
3 Months and older
Enrollment
481 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 5, 2021 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety Study of GSK Biologicals' Influenza Vaccine When Administered in Children

NCT01196988
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine GSK2321138A, FluarixTM, Influenza vaccine GSK2604409A
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 17 Years
Enrollment
3,027 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
14
States / cities
Sacramento, California • Boca Raton, Florida • Wichita, Kansas + 10 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2018 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Phase 1/2 Clinical Trial of an Alphavirus Replicon Vaccine for Influenza

NCT00440362
View directory record Official record
Conditions
Influenza
Interventions
AVX502, Placebo
Biological
Lead sponsor
AlphaVax, Inc.
Industry
Eligibility
18 Years to 40 Years
Enrollment
216 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 10, 2008 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

2010-2011 Trivalent Influenza Vaccine (TIV) in Pregnant Women

NCT01173211
View directory record Official record
Conditions
Influenza
Interventions
Trivalent inactivated influenza vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 39 Years · Female only
Enrollment
183 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
5
States / cities
St Louis, Missouri • Durham, North Carolina • Nashville, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 24, 2014 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 1 Interventional

VRC 307: A Double-Blind, Randomized Phase I Study of the Safety and Immunogenicity of a Prime-Boost Schedule of the Investigational DNA Trivalent Influenza Vaccine, VRC-FLUDNA047-00-VP, Followed by the 2008/2009 Seasonal Influenza Trivalent Inactivat...

NCT00858611
View directory record Official record
Conditions
Influenza, Human
Interventions
VRC-FLUDNA047-00-VP, Flulaval (Registered) Seasonal Influenza Vaccine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
51 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 18, 2026, 8:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vaccine Acceptance in Pregnant Minority Women

NCT01740310
View directory record Official record
Conditions
Pregnancy
Interventions
Maternal Vaccine Education
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
4
States / cities
Atlanta, Georgia • Decatur, Georgia • Riverdale, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 9, 2015 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Body and Social Behavior

NCT05654441
View directory record Official record
Conditions
Psychology, Social, Inflammation, Defeat, Social, Interaction, Social
Interventions
Influenza vaccine, Placebo
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 27, 2024 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 4 Interventional

VSMART (Video-Conference Stress Management and Relaxation Training for Older Women With Breast Cancer)

NCT03955991
View directory record Official record
Conditions
Stress
Interventions
R-CBSM, Influenza vaccine
Behavioral · Biological
Lead sponsor
University of Miami
Other
Eligibility
50 Years and older · Female only
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
1
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mail Outreach To Increase Vaccination Acceptance Through Engagement

NCT02243774
View directory record Official record
Conditions
Influenza, Human, Influenza, Human Flu
Interventions
Core letter signed by Surgeon General, Core letter signed by the Director of the National Vaccine Program, Core letter signed by Surgeon General + implementation prompt, Core letter signed by SG + enhanced implementation prompt
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
66 Years and older
Enrollment
228,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 12, 2017 · Synced Oct 18, 2026, 8:09 AM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Study of the Protective Effect of an Injectable Influenza Vaccine Against Influenza Illness in Adults Under 50 y.o.

NCT00216242
View directory record Official record
Conditions
Influenza
Interventions
Influenza virus vaccine (Fluviral), Saline placebo
Biological
Lead sponsor
ID Biomedical Corporation, Quebec
Industry
Eligibility
18 Years to 49 Years
Enrollment
7,400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
43
States / cities
Sacramento, California • San Francisco, California • Denver, Colorado + 34 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2006 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Immunogenicity of a Quadrivalent Virus-Like Particles (VLP) Influenza Vaccine in Healthy Adults

NCT02768805
View directory record Official record
Conditions
Virus Diseases, RNA Virus Infections, Respiratory Tract Diseases, Respiratory Tract Infections
Interventions
15 µg/strain of Quadrivalent VLP Vaccine, 30 µg/strain of Quadrivalent VLP Vaccine, 15 µg/strain of the licensed quadrivalent vaccine
Biological
Lead sponsor
Medicago
Industry
Eligibility
18 Years to 64 Years
Enrollment
900 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
3
States / cities
Hollywood, Florida • South Miami, Florida • Endwell, New York
Source: ClinicalTrials.gov public record
Updated Jun 11, 2020 · Synced Oct 18, 2026, 8:09 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

A Trial to Evaluate the Effect of CD388/MK1406 on the Immunogenicity of Fluzone® HD Vaccine (CD388.SQ.1.08/MK-1406-007)

NCT07300085
View directory record Official record
Conditions
Healthy Participants
Interventions
Fluzone® High-Dose (HD) influenza vaccine, MK-1406 Injection, Placebo
Biological · Combination Product
Lead sponsor
Cidara Therapeutics Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years to 49 Years
Enrollment
710 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
4
States / cities
Glendale, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Study of the Safety and Immunogenicity of High-Dose Quadrivalent Influenza Vaccine in Subjects Aged 65 Years and Older

NCT02553343
View directory record Official record
Conditions
Influenza
Interventions
High-dose quadrivalent influenza virus vaccine, High-dose influenza virus vaccine, High-dose trivalent inactivated influenza vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
65 Years and older
Enrollment
792 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
9
States / cities
Milford, Connecticut • Coral Gables, Florida • Wichita, Kansas + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2018 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Collaborative Efforts to Increase Flu Vaccination

NCT01403649
View directory record Official record
Conditions
Influenza, Collaboration
Interventions
Private/public collaboration to increase flu vaccination, Usual care
Behavioral · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
6 Months to 18 Years
Enrollment
117,175 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
27
States / cities
Aurora, Colorado • Brighton, Colorado • Broomfield, Colorado + 15 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2015 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of Self-Amplifying RNA Pandemic Influenza Vaccine in Adults

NCT06602531
View directory record Official record
Conditions
Influenza, Human
Interventions
ARCT-2304, Control vaccine younger adults, Control vaccine older adults, Placebo Vaccine
Biological · Other
Lead sponsor
Arcturus Therapeutics, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
212 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
4
States / cities
La Mesa, California • San Bernardino, California • Longmont, Colorado + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2026 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of Quadrivalent Influenza Vaccine Among Adults

NCT01218646
View directory record Official record
Conditions
Influenza
Interventions
Investigational Quadrivalent Inactivated Influenza Vaccine, No Preservative, Investigational Trivalent Inactivated Influenza Vaccine, No Preservative, Fluzone®: 2010-2011 Trivalent Inactivated Influenza Vaccine, No Preservative
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
739 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
12
States / cities
Hoover, Alabama • South Miami, Florida • Springfield, Missouri + 9 more
Source: ClinicalTrials.gov public record
Updated Oct 23, 2013 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety Study of Inactivated Subunit H5N1 Influenza Vaccine in Prior Recipients of Live Attenuated H2N2, H6N1 and H9N2 Influenza Vaccines and in H5N1 and Live Attenuated Vaccine Naïve Individuals

NCT03816878
View directory record Official record
Conditions
Influenza
Interventions
H5N1 pISV
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study to Evaluate the Safety of a Bivalent Vaccine of New 6:2 Influenza Virus Reassortants in Healthy Adults

NCT00192127
View directory record Official record
Conditions
Influenza
Interventions
FluMist, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 18, 2007 · Synced Oct 18, 2026, 8:09 AM EDT
Not listed No phase listed Observational

The DETECT(Digital Engagement & Tracking for Early Control, & Treatment) Study

NCT04336020
View directory record Official record
Conditions
Influenza, Virus
Interventions
Not listed
Lead sponsor
Scripps Translational Science Institute
Other
Eligibility
18 Years and older
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Oct 18, 2026, 8:09 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

A Study of Annual Doses of MK-1406/CD388 in Healthy Adults (MK-1406-006/CD388.SQ.2.07)

NCT07225959
View directory record Official record
Conditions
Healthy Participants
Interventions
MK-1406 Injection
Combination Product
Lead sponsor
Cidara Therapeutics Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years to 66 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
4
States / cities
Miami Lakes, Florida • Spartanburg, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 18, 2026, 8:09 AM EDT
Terminated Phase 2 Interventional Results available

Study of Nitazoxanide in Adults With Acute Uncomplicated Influenza

NCT01056380
View directory record Official record
Conditions
Influenza
Interventions
Nitazoxanide, Placebo
Drug
Lead sponsor
Romark Laboratories L.C.
Industry
Eligibility
18 Years to 65 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Elmira, New York
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Oct 18, 2026, 8:09 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Rapid Vaccination of Hard-To-Reach Populations

NCT00155974
View directory record Official record
Conditions
Influenza
Interventions
Community-based vaccine outreach intervention
Biological
Lead sponsor
The New York Academy of Medicine
Other
Eligibility
18 Years and older
Enrollment
4,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 22, 2006 · Synced Oct 18, 2026, 8:09 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Motivational Interviewing for Vaccine Uptake in Latinx Adults

NCT06062056
View directory record Official record
Conditions
Vaccine Hesitancy
Interventions
EHR alert, Motivational Interviewing, Warm hand off to nurse
Other · Behavioral
Lead sponsor
Boston College
Other
Eligibility
18 Years and older
Enrollment
3,698 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Oct 18, 2026, 8:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Intervention Promoting HPV Vaccination in Safety-net Clinics

NCT01729429
View directory record Official record
Conditions
Human Papilloma Virus-Related Cervical Carcinoma
Interventions
HPV brochure, recall, reminders, General Adolescent Vaccine Brochure
Behavioral
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
11 Years to 18 Years · Female only
Enrollment
831 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced Oct 18, 2026, 8:09 AM EDT