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ClinicalTrials.gov public records Last synced Oct 14, 2026, 1:23 PM EDT

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Showing 313–336 of 1,157 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Influenza vaccine Clear all
Completed Not applicable Interventional

Pilot Text Message for Influenza Vaccination

NCT01761734
View directory record Official record
Conditions
Influenza
Interventions
text message
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 24, 2014 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Monovalent H5N1 Vaccine GSK1557484A in Children 6 Months to < 18 Years of Age

NCT01310413
View directory record Official record
Conditions
Influenza, Influenza Vaccines
Interventions
Influenza A (H5N1) Virus monovalent vaccine, Saline placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 17 Years
Enrollment
842 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
11
States / cities
Paramount, California • Sacramento, California • Newton, Kansas + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety Study of Anti-Influenza Virus Monoclonal Antibody to Treat Influenza

NCT01390025
View directory record Official record
Conditions
Influenza, Human
Interventions
TCN-032, Placebo
Biological
Lead sponsor
Theraclone Sciences, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 2, 2012 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Safety and Immunogenicity of a Monovalent Inactivated Influenza H3N2 Variant (H3N2v) Vaccine in Adult and Elderly Populations

NCT01746082
View directory record Official record
Conditions
Influenza
Interventions
Influenza A/H3N2 variant Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
211 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
4
States / cities
Decatur, Georgia • Iowa City, Iowa • Houston, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 28, 2014 · Synced Oct 14, 2026, 1:23 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Multilevel Intervention of COVID-19 Vaccine Uptake Among Latinos

NCT06156228
View directory record Official record
Conditions
Vaccine Hesitancy
Interventions
Multilevel Intervention
Behavioral
Lead sponsor
San Diego State University
Other
Eligibility
18 Years and older
Enrollment
238 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 4, 2025 · Synced Oct 14, 2026, 1:23 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 14, 2026, 1:23 PM EDT
Withdrawn Phase 3 Interventional

A Study to Evaluate the Efficacy and Safety of Intravenous Peramivir in Subjects With Uncomplicated Influenza.

NCT01224795
View directory record Official record
Conditions
Influenza
Interventions
Peramivir, Placebo Comparator
Drug
Lead sponsor
BioCryst Pharmaceuticals
Industry
Eligibility
12 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
96
States / cities
Birmingham, Alabama • Hot Springs, Arkansas • Jonesboro, Arkansas + 93 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Oct 14, 2026, 1:23 PM EDT
Not listed No phase listed Observational

Platelet Immune Responses in Aging and Influenza and Sepsis (INVACS)

NCT03010410
View directory record Official record
Conditions
Sepsis, Influenza
Interventions
Not listed
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Murray, Utah
Source: ClinicalTrials.gov public record
Updated Aug 13, 2019 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of mRNA-1010 Compared With a Licensed Influenza Vaccine in Adults ≥50 Years of Age

NCT06602024
View directory record Official record
Conditions
Seasonal Influenza
Interventions
mRNA-1010, Fluarix®, Influsplit® Tetra, Fluarix Tetra, Alpharix® Tetra
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
50 Years and older
Enrollment
40,805 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
188
States / cities
Anniston, Alabama • Athens, Alabama • Birmingham, Alabama + 150 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Immunogenicity, Safety, and Tolerability of a Plant-Derived Quadrivalent VLP Influenza Vaccine in Elderly Adults

NCT02831751
View directory record Official record
Conditions
Virus Diseases, RNA Virus Infections, Respiratory Tract Diseases, Respiratory Tract Infections
Interventions
30 µg/strain of Quadrivalent VLP Vaccine, 60 µg/strain of Quadrivalent VLP Vaccine, FluLaval® Tetra (15 µg/strain), Fluzone® High-Dose (60 µg/strain)
Biological
Lead sponsor
Medicago
Industry
Eligibility
65 Years and older
Enrollment
1,001 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
6
States / cities
Redding, California • Hollywood, Florida • South Miami, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2019 · Synced Oct 14, 2026, 1:23 PM 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 14, 2013 · Synced Oct 14, 2026, 1:23 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Phase 1 Safety Study of Recombinant Influenza Vaccine for Prevention

NCT02015494
View directory record Official record
Conditions
Influenza
Interventions
VAX2012Q
Biological
Lead sponsor
VaxInnate Corporation
Industry
Eligibility
18 Years to 40 Years
Enrollment
316 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
4
States / cities
Lenexa, Kansas • Rochester, New York • Mt. Pleasant, South Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2015 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Fermented Soy Product on Cognition, Immune Status and Vaccine

NCT04866576
View directory record Official record
Conditions
Cognitive Change, Inflammation, Immune Response
Interventions
Q CAN PLUS, Placebo
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
65 Years to 80 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Evaluation of the Safety and Immunogenicity of the Influenza Vaccine GSK2186877A in the Elderly

NCT00772889
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine GSK2186877A, GSK Biologicals' Fluarix™
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
19 Years and older
Enrollment
971 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
9
States / cities
Clearwater, Florida • Coral Gables, Florida • Milford, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2018 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Not applicable Interventional Results available

PregText: Feasibility of Monitoring Influenza Vaccine Safety in Pregnant Women Using Text Messaging

NCT01974050
View directory record Official record
Conditions
Pregnancy
Interventions
Text message surveillance
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older · Female only
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 12, 2018 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 4 Interventional Results available

FLUAD vs. FLUZONE HD Influenza Vaccine in Residents of Long Term Care

NCT03694808
View directory record Official record
Conditions
Flu
Interventions
Fluad Vaccine, Fluzone HD Vaccine
Drug
Lead sponsor
David H. Canaday
Other
Eligibility
65 Years and older
Enrollment
478 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 30, 2024 · Synced Oct 14, 2026, 1:23 PM EDT
Active, not recruiting Not applicable Interventional

Kaiser Colorado Flu Nudge

NCT07372950
View directory record Official record
Conditions
Influenza, Vaccination
Interventions
Behavioral economics framed test messaging
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
6 Months and older
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of Wood Smoke Particles on Influenza-induced Nasal Inflammation in Normal Volunteers

NCT02183753
View directory record Official record
Conditions
Response of Viral Infection to Woodsmoke
Interventions
wood smoke, clean air
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 40 Years
Enrollment
39 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 Jun 11, 2015 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 1Phase 2 Interventional

Safety of and Immune Response to Two Influenza Vaccines in HIV Infected Children and Adolescents

NCT00091702
View directory record Official record
Conditions
HIV Infections, Influenza
Interventions
Cold-adapted live attenuated influenza vaccine (FluMist), Inactivated influenza vaccine (IAIV)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
5 Years to 17 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2006
U.S. locations
59
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 42 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 14, 2026, 1:23 PM EDT
Active, not recruiting Phase 2 Interventional

High vs. Standard Dose Influenza Vaccine in Lung Allograft Recipients

NCT05215327
View directory record Official record
Conditions
Immunization; Infection, Transplantation Infection, Influenza
Interventions
High Dose Quadrivalent Inactivated Influenza Vaccine, Standard Dose Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
16 Years and older
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 4, 2026 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Phase II Study to Investigate the Kinetics of the Immune Response Generated by Influenza Virus Vaccine.

NCT00192309
View directory record Official record
Conditions
Influenza
Interventions
CAIV-T, TIV, Placebo
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001
U.S. locations
1
States / cities
Stamford, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 14, 2012 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immune Response of Different Pediatric Combination Vaccines.

NCT00255047
View directory record Official record
Conditions
Diphtheria, Polio, Pertussis
Interventions
DAPTACEL®. (DTaP), IPOL®., and ActHIB®., Pentacel®: DTaP-IPV/Hib combined, DTaP-IPV and ActHIB®
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
42 Days to 89 Days
Enrollment
2,167 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
36
States / cities
Tuscaloosa, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 29 more
Source: ClinicalTrials.gov public record
Updated Feb 14, 2014 · Synced Oct 14, 2026, 1:23 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacodynamic Open-Label Trial With VXA-A1.1 Oral H1 Vaccine in Healthy Adults

NCT03121339
View directory record Official record
Conditions
Seasonal Influenza Preventative Vaccine Pharmacodynamics
Interventions
VXA-A1.1 H1 Tablet Vaccine (small), VXA-A1.1 H1 Tablet Vaccine (large)
Biological
Lead sponsor
Vaxart
Industry
Eligibility
18 Years to 49 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 30, 2018 · Synced Oct 14, 2026, 1:23 PM 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 14, 2026, 1:23 PM EDT