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ClinicalTrials.gov public records Last synced Oct 20, 2026, 3:17 AM EDT

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Showing 505–528 of 1,159 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Fluarix Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Influenza Immunization in Adults Over Age 75

NCT02200276
View directory record Official record
Conditions
Influenza, Immunization, Older Adults, Over Age 75
Interventions
Influenza
Biological
Lead sponsor
Johns Hopkins University
Other
Eligibility
75 Years and older
Enrollment
1,025 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Oct 20, 2026, 3:17 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Characterizing the Human Airway Immune Response to FluMist Vaccination

NCT07177417
View directory record Official record
Conditions
Healthy Young Adults, Influenza Vaccines, Influenza Vaccine Response
Interventions
FluMist, inactivated influenza vaccine, bronchoscopy
Biological · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Oct 20, 2026, 3:17 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Preparedness Through Respiratory Virus Epidemiology and Community Engagement

NCT07147517
View directory record Official record
Conditions
Respiratory Infection Virus, COVID -19, RSV, FLU
Interventions
Component A0, Component A1, Component A2, Component B
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
Not listed
Enrollment
25,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2030
U.S. locations
2
States / cities
La Jolla, California • San Ysidro, California
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Clinical Trial of CSL's 2009 H1N1 Influenza Vaccine (CSL425) in a Healthy Pediatric Population in the USA

NCT00958243
View directory record Official record
Conditions
Influenza
Interventions
CSL's 2009 H1N1 Influenza Vaccine (CSL425), Placebo
Biological
Lead sponsor
Seqirus
Industry
Eligibility
6 Months to 9 Years
Enrollment
473 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
13
States / cities
Chandler, Arizona • Melbourne, Florida • Bardstown, Kentucky + 10 more
Source: ClinicalTrials.gov public record
Updated May 23, 2018 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Not applicable Interventional

Pediatric Second Influenza Dose Portal Reminder Recall

NCT04668417
View directory record Official record
Conditions
Influenza, Respiratory Tract Infections
Interventions
Portal Reminders for Second Dose of Influenza Vaccine with Direct Scheduling Link, Portal Reminders for Second Dose of Influenza Vaccine without Direct Scheduling Link
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
6 Months to 36 Months
Enrollment
698 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 28, 2021 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Immune Responses to H5N1 Vaccine With and Without AS03 Adjuvant

NCT01578317
View directory record Official record
Conditions
Influenza
Interventions
H5N1 vaccine plus AS03 adjuvant, H5N1 vaccine without adjuvant
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 26, 2019 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

H5 Adult - Chiron Study of Bird Flu Vaccine

NCT00280033
View directory record Official record
Conditions
Influenza
Interventions
Aluminum hydroxide, Inactivated Influenza A/H5N1 Vaccine (Chiron), MF-59, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
394 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
4
States / cities
Stanford, California • St Louis, Missouri • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 13, 2013 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Not applicable Interventional

Influenza Diagnosis, Treatment and Surveillance With Xpert Flu

NCT01947049
View directory record Official record
Conditions
Influenza
Interventions
Rapid Influenza Testing with Xpert Flu
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
2,011 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
4
States / cities
Phoenix, Arizona • Sylmar, California • Baltimore, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2017 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Fluzone® Quadrivalent and Fluzone® High-Dose, Influenza Vaccines

NCT03308825
View directory record Official record
Conditions
Influenza, Flu
Interventions
Fluzone Quadrivalent vaccine, Fluzone High-Dose vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months and older
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
3
States / cities
Council Bluffs, Iowa • Bardstown, Kentucky • Metairie, Louisiana
Source: ClinicalTrials.gov public record
Updated Mar 29, 2022 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Clinical Study to Evaluate Safety, Immunogenicity of Investigational Flu Vaccine Compared to an Approved Flu Vaccine (QIV) in Children Previously Vaccinated in Trial V118_05

NCT02255409
View directory record Official record
Conditions
Influenza
Interventions
Adjuvanted Quadrivalent Subunit Influenza Virus Vaccine (aQIV), non-adjuvanted Quadrivalent Influenza Vaccine (QIV)
Biological
Lead sponsor
Seqirus
Industry
Eligibility
12 Months to 84 Months
Enrollment
607 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
19
States / cities
San Diego, California • San Gabriel, California • Colorado Springs, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2023 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Not applicable Interventional Results available

Patient Portal - Flu Reminder Recall

NCT03666026
View directory record Official record
Conditions
Influenza, Respiratory Tract Infections, Vaccines
Interventions
1 MyChart R/R, 2 MyChart R/R, 3 MyChart R/R
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
4 Months and older
Enrollment
164,205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 17, 2021 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Not applicable Interventional

Optimizing the Influenza Clinical Decision Support Tool

NCT03415425
View directory record Official record
Conditions
Clinical Decision Support
Interventions
Current Version of the Influenza Alert, Alternate Modifications of the Influenza Alert
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
3 Years and older
Enrollment
25,881 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 1, 2024 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Intervention Study of Face Mask and Hand Sanitizer to Reduce Influenza Transmission

NCT00490633
View directory record Official record
Conditions
Influenza
Interventions
Ear Loop Procedure Mask, 62% Ethyl Alcohol Hand Sanitizer
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
1,420 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 19, 2011 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Pivotal, Multicenter, Observer-Blind, Randomized Study of Influenza A (H1N1)2009 Monovalent Subunit Vaccine With and Without Adjuvant in Children Ages 6 to <36 Months

NCT00996307
View directory record Official record
Conditions
Influenza
Interventions
MF59-eH1N1_f
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
6 Months to 35 Months
Enrollment
654 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
28
States / cities
Bentonville, Arkansas • Fort Smith, Arkansas • Canoga Park, California + 25 more
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

T-cell And General Immune Response to Seasonal Influenza Vaccine (SLVP018) - Year 1, 2009

NCT01987349
View directory record Official record
Conditions
Influenza
Interventions
Fluzone® (intramuscular), FluMist® (intranasal)
Biological
Lead sponsor
Stanford University
Other
Eligibility
8 Years to 100 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 12, 2017 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

FluSAFE: Flu SMS Alerts to Freeze Exposure

NCT03274310
View directory record Official record
Conditions
Influenza, Acute Respiratory Infection, Influenza-like Illness
Interventions
Educational text messages
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
Not listed
Enrollment
1,918 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 16, 2025 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Safety and Immunogenicity of FluLaval™ TR and Fluarix® (Influenza Vaccines) in Young and Older Adults

NCT00380211
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine (A/H3N2, A/H1N1, and B strains), Fluarix
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
660 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
6
States / cities
Miami, Florida • Lenexa, Kansas • Binghamton, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2016 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety of a Monovalent Vaccine in Healthy Adults

NCT00480155
View directory record Official record
Conditions
Healthy
Interventions
Frozen FluMist®, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
3
States / cities
Daytona Beach, Florida • Portland, Oregon • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 22, 2008 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Adjuvanted Seasonal Recombinant Quadrivalent Virus-Like Particles (QVLP) Influenza Vaccine in Adults 65 Years of Age and Older

NCT04622592
View directory record Official record
Conditions
Influenza
Interventions
Instramuscular vaccine
Biological
Lead sponsor
Medicago
Industry
Eligibility
65 Years and older
Enrollment
209 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
14
States / cities
Huntsville, Alabama • Chandler, Arizona • San Diego, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jul 21, 2023 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of a Monovalent mRNA Vaccine Encoding Influenza Hemagglutinin in Adult Participants 18 Years of Age and Older

NCT06118151
View directory record Official record
Conditions
Influenza, Influenza Immunization
Interventions
Influenza Hemagglutinin mRNA vaccine, Quadrivalent Recombinant Influenza Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
388 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
20
States / cities
Rolling Hills Estates, California • San Diego, California • Coral Gables, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 7, 2023 · Synced Oct 20, 2026, 3:17 AM 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 20, 2026, 3:17 AM EDT
Completed No phase listed Observational

Influenza Vaccine in HIV Infection: Immune Response and Effect on Viral Load

NCT00025922
View directory record Official record
Conditions
HIV Infection
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 20, 2026, 3:17 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Immunogenicity and Safety of FluBlok Trivalent Recombinant Hemagglutinin Influenza Vaccine in Healthy Pediatrics

NCT00336453
View directory record Official record
Conditions
Influenza
Interventions
Influenza Vaccination
Biological
Lead sponsor
Protein Sciences Corporation
Industry
Eligibility
6 Months to 59 Months
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
3
States / cities
Bardstown, Kentucky • St Louis, Missouri • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 17, 2009 · Synced Oct 20, 2026, 3:17 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

A Laboratory Evaluation of the Humoral Immune Response in Adults and Children to the H1 Hemagglutinin (HA) Stalk Domain and Other Influenza A Virus Protein Epitopes, After Administration of GlaxoSmithKline (GSK) Biologicals' Pandemic Influenza Vaccines

NCT02415842
View directory record Official record
Conditions
Immunologic Tests
Interventions
Serum samples
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 64 Years
Enrollment
414 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 23, 2019 · Synced Oct 20, 2026, 3:17 AM EDT