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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:22 PM EDT

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Showing 337–360 of 1,140 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Flu Clear all
Not listed Phase 2 Interventional Accepts healthy volunteers

Study of the Immunogenicity and Safety of a Quadrivalent Influenza Vaccine (VAX2012Q) in Adults 18-64 Years

NCT02434276
View directory record Official record
Conditions
Influenza
Interventions
VAX2012Q, Fluzone Quadrivalent
Biological
Lead sponsor
VaxInnate Corporation
Industry
Eligibility
18 Years to 64 Years
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
6
States / cities
Huntsville, Alabama • San Diego, California • Melbourne, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2015 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Evaluate the Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Quadrivalent Influenza Vaccine (GSK2282512A) Compared to Fluzone® Quadrivalent in Children 6 to 35 Months of Age

NCT02242643
View directory record Official record
Conditions
Influenza
Interventions
FluLaval™ Quadrivalent, Fluzone® Quadrivalent
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 35 Months
Enrollment
2,432 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
64
States / cities
Birmingham, Alabama • Dothan, Alabama • Tucson, Arizona + 56 more
Source: ClinicalTrials.gov public record
Updated Sep 7, 2018 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Durability and Impact of the Seasonal Influenza Vaccine on H5 Induced B Cell Response

NCT03701061
View directory record Official record
Conditions
Influenza A Subtype H5N1 Infection
Interventions
Seasonal Influenza Vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
Not listed
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 11, 2020 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Not applicable Interventional

Centralized Reminder Recall - Flu RCT2

NCT03294473
View directory record Official record
Conditions
Influenza, Human, Orthomyxoviridae Infections, RNA Virus Infections, Virus Disease, Respiratory Tract Infections, Respiratory Tract Disease, Vaccines, Physiological Effects of Drugs
Interventions
R/R - Autodialers, R/R - Texting, R/R - mailed postcard
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
6 Months to 17 Years
Enrollment
70,190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2019 · Synced Oct 21, 2026, 5:22 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Nasal Swab Home Collection Kit (NSHC Kit) Study

NCT03813966
View directory record Official record
Conditions
Influenza Viral Infections
Interventions
Sofia Influenza A+B FIA
Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
0 Years and older
Enrollment
1,181 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 5, 2020 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 2 Interventional

Oral Triple Combination Antiviral Drug Therapy for Treatment of Influenza A in Immunocompromised Subjects

NCT00979251
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir Phosphate, ADS-8902
Drug
Lead sponsor
Adamas Pharmaceuticals, Inc.
Industry
Eligibility
1 Year to 65 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
16
States / cities
San Francisco, California • Hollywood, Florida • Miramar, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2014 · Synced Oct 21, 2026, 5:22 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Influenza Challenge in Mood Disorders

NCT02415166
View directory record Official record
Conditions
MAJOR DEPRESSIVE DISORDER
Interventions
INFLUENZA VACCINE, NaCl-saline placebo
Biological · Other
Lead sponsor
Laureate Institute for Brain Research, Inc.
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jan 23, 2018 · Synced Oct 21, 2026, 5:22 PM EDT
Not listed Phase 2 Interventional

Offering Influenza and Pneumococcal Vaccine to Patients Being Evaluated in the Emergency Department

NCT00380679
View directory record Official record
Conditions
High Risk for Serious Influenza, High Risk for Pneumonia
Interventions
Influenza vaccination, Pneumococcal polysaccharide vaccination
Biological
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
2
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 26, 2006 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

REDucing Influenza Among University Students, University of California at Berkeley

NCT00448773
View directory record Official record
Conditions
Influenza-like Illness, Influenza
Interventions
Online education
Behavioral
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
17 Years and older
Enrollment
3,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jan 7, 2010 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

H7N9 Mix and Match With MF59 in Healthy Adults

NCT01938742
View directory record Official record
Conditions
Influenza
Interventions
Influenza Virus Vaccine, Monovalent A/H7N9 A/Shanghai/2/2013, MF59
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 64 Years
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
4
States / cities
Decatur, Georgia • Iowa City, Iowa • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2016 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Two Doses of H5N1 Influenza Vaccine in Healthy Adults

NCT01776541
View directory record Official record
Conditions
Pandemic H5N1 Influenza
Interventions
Adjuvanted H5N1 pandemic influenza vaccine
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
18 Years to 64 Years
Enrollment
979 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
4
States / cities
Miami, Florida • St Louis, Missouri • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2015 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 4 Interventional Results available

Improving Immunogenicity of Influenza Vaccine in HIV Infected Individuals

NCT01262846
View directory record Official record
Conditions
HIV Infection
Interventions
Fluzone®
Biological
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 13, 2017 · Synced Oct 21, 2026, 5:22 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

T and B Cell Response to Avian Flu Vaccine

NCT00337896
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Aug 16, 2013 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing Multiple Behavioral Science Strategies to Increase Flu-Shot Rates at a Large Retail Pharmacy

NCT04590066
View directory record Official record
Conditions
Influenza, Human
Interventions
Flu shot text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
734,383 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 1, 2021 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of mRNA-1010 Seasonal Influenza Vaccine in Healthy Adults

NCT04956575
View directory record Official record
Conditions
Seasonal Influenza
Interventions
mRNA-1010, Placebo, Active Comparator
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
885 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
21
States / cities
Phoenix, Arizona • Tempe, Arizona • Colton, California + 17 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2023 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Bioequivalence of Over-encapsulated Oseltamivir Capsules to Marketed Oseltamivir Capsules in Healthy Volunteers

NCT01258530
View directory record Official record
Conditions
Influenza, Human
Interventions
over-encapsulated oseltamivir, oseltamivir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 7, 2017 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 4 Interventional Results available

A Study of Oseltamivir (Tamiflu) for the Seasonal Prophylaxis of Influenza in Immunocompromised Participants

NCT00412737
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir, Placebo
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
1 Year and older
Enrollment
477 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
34
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Stanford, California + 28 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2016 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Influenza HA Ferritin Vaccine, Alone or in Prime-Boost Regimens With an Influenza DNA Vaccine in Healthy Adults

NCT03186781
View directory record Official record
Conditions
Influenza
Interventions
VRC-FLUNPF081-00-VP (HA-F A/Sing), VRC-FLUDNA082-00-VP (DNA A/Sing)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 16, 2021 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 3 Interventional Results available

Safety, PK and Effectiveness of IV Peramivir Versus Oseltamivir in Pediatric Subjects With Uncomplicated Influenza

NCT02369159
View directory record Official record
Conditions
Influenza
Interventions
Peramivir, Oseltamivir
Drug
Lead sponsor
BioCryst Pharmaceuticals
Industry
Eligibility
0 Days to 17 Years
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
9
States / cities
Shreveport, Louisiana • Dayton, Ohio • Smithfield, Pennsylvania + 6 more
Source: ClinicalTrials.gov public record
Updated Mar 23, 2021 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Not applicable Interventional

The Effect of Time-Slot Scheduling on Flu Vaccination Rates

NCT01206686
View directory record Official record
Conditions
Seasonal Influenza
Interventions
Planning Prompt, Default Appointment, Control
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
50,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2016 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Development of Childhood Anti-Influenza Immunity

NCT03673345
View directory record Official record
Conditions
Influenza, Influenza Immunisation
Interventions
Influenza Virus Quadrivalent Inactivated Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Months to 15 Years
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 18, 2022 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

DMID 21-0041; Influenza CVD 59000

NCT05666245
View directory record Official record
Conditions
Influenza
Interventions
Personal Protective Equipment (PPE) - Under High Air Hygiene, No Intervention - Under High Air Hygiene, Personal Protective Equipment (PPE) - Under Low Air Hygiene, No Intervention - Under Low Air Hygiene
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 59 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
Baltimore, Maryland • College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Oct 21, 2026, 5:22 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

BPL-1357 Against H1N1 Influenza Virus Challenge

NCT07215858
View directory record Official record
Conditions
Influenza, Human
Interventions
BPL-1357 IM, BPL-1357 IN, Placebo IM, Placebo IN
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
129 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
2
States / cities
Bethesda, Maryland • Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 21, 2026, 5:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influenza Reminder Text-Messaging

NCT06587984
View directory record Official record
Conditions
Influenza
Interventions
Text message reminder
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
6 Months to 18 Years
Enrollment
228,361 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Oct 21, 2026, 5:22 PM EDT