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ClinicalTrials.gov public records Last synced Oct 14, 2026, 10:44 PM EDT

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Showing 337–350 of 350 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: TIV (Fluzone) Influenza Vaccination Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

The INFLUENTIAL Trial- Evaluation of National Inpatient Influenza Vaccination Program

NCT05832307
View directory record Official record
Conditions
Influenza
Interventions
Existing Influenza Vaccination Practices, Standardized inpatient influenza vaccination program
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
6 Months to 99 Years
Enrollment
22,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
2
States / cities
Chicago, Illinois • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Oct 14, 2026, 10:44 PM EDT
Completed No phase listed Observational Results available

FeverText: Assessing Fever Rates After Vaccination During the 2011-12 Influenza Season Using Text Messaging

NCT01467934
View directory record Official record
Conditions
Fever
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
6 Months to 23 Months
Enrollment
530 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
2
States / cities
Atlanta, Georgia • New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 21, 2014 · Synced Oct 14, 2026, 10:44 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Optimizing Lymphatic Pumping for Influenza Vaccine Responses in Vulnerable Populations

NCT07786467
View directory record Official record
Conditions
No Disease or Condition is Being Directly Studied, The Focus of the Study in Healthy Volunteers
Interventions
Osteopathic manipulation, Sham
Other
Lead sponsor
Lake Erie College of Osteopathic Medicine
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Erie, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 14, 2026, 10:44 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Non-integrated Costs Increase Effectiveness of Incentives

NCT03507231
View directory record Official record
Conditions
Control - No Incentive for Flu Vaccine, Direct Incentive, Indirect Incentive
Interventions
Email Message, Incentive for Vaccination, Incentive for completing a short survey
Behavioral
Lead sponsor
Carnegie Mellon University
Other
Eligibility
18 Years to 100 Years
Enrollment
12,531 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 25, 2018 · Synced Oct 14, 2026, 10:44 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 14, 2026, 10:44 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

H5N1 Priming and Boosting Strategies

NCT00703053
View directory record Official record
Conditions
Influenza
Interventions
A/Vietnam/1203/04, A/Indonesia/05/05
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
505 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
5
States / cities
Decatur, Georgia • Rochester, Minnesota • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2013 · Synced Oct 14, 2026, 10:44 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Bone Marrow and Peripheral Blood Immune Responses Study

NCT05616546
View directory record Official record
Conditions
Influenza
Interventions
Influenza Vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years to 64 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2029
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 31, 2024 · Synced Oct 14, 2026, 10:44 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Study to Evaluate the Safety and the Immunogenicity of a Second Generation Structurally Designed mRNA Vaccine Candidate Against Pandemic Influenza H5 HA Strain in Healthy Adult Participants Aged 18 Years and Older

NCT06907511
View directory record Official record
Conditions
Pandemic Influenza Immunization, Healthy Volunteers
Interventions
Pandemic flu H5 HA mRNA SD2 vaccine, Placebo
Biological · Other
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
720 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
13
States / cities
La Mesa, California • DeLand, Florida • Lakeland, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Jan 16, 2026 · Synced Oct 14, 2026, 10:44 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Comparison of Delivery Routes of Flu Vaccine in Adults

NCT00170547
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 64 Years
Enrollment
1,597 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
10
States / cities
Stanford, California • Torrance, California • Iowa City, Iowa + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 5, 2014 · Synced Oct 14, 2026, 10:44 PM EDT
Completed Not applicable Interventional

Respiratory Disease Management

NCT01543217
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
RT management, Ususal care
Other
Lead sponsor
Barnes-Jewish Hospital
Other
Eligibility
18 Years to 64 Years
Enrollment
428 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 23, 2021 · Synced Oct 14, 2026, 10:44 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Simultaneous mRNA COVID-19 and IIV Vaccination in Pregnancy Study

NCT06503900
View directory record Official record
Conditions
Birth Outcomes, Safety, Adverse Event Following Immunization
Interventions
mRNA COVID-19 vaccine, IIV4 (quadrivalent inactivated influenza vaccine)
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
6
States / cities
Atlanta, Georgia • Boston, Massachusetts • Durham, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 14, 2026, 10:44 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity, Safety, Reactogenicity, Efficacy, Effectiveness and Lot Consistency of FluBlok

NCT00539981
View directory record Official record
Conditions
Influenza
Interventions
FluBlok®, Placebo
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 49 Years
Enrollment
4,648 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
24
States / cities
Beverly Hills, California • Sacramento, California • San Francisco, California + 20 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2022 · Synced Oct 14, 2026, 10:44 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

NK Cell Mediated Influenza Immunity During Pregnancy

NCT03196245
View directory record Official record
Conditions
Pregnancy Related, Influenza, Human
Interventions
There is no intervention.
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2019
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2023 · Synced Oct 14, 2026, 10:44 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Effect of Proximity on Flu-Shot Participation

NCT01455753
View directory record Official record
Conditions
Influenza, Human
Interventions
Functional Proximity, Base Proximity
Other
Lead sponsor
National Bureau of Economic Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
1,801 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 18, 2017 · Synced Oct 14, 2026, 10:44 PM EDT