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ClinicalTrials.gov public records Last synced Oct 19, 2026, 12:46 AM EDT

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Showing 913–936 of 1,125 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Influenza Virus Vaccine Clear all
Completed Phase 1Phase 2 Interventional Results available

Oseltamivir Treatment for Children Less Than 24 Months of Age With Influenza

NCT00391768
View directory record Official record
Conditions
Influenza
Interventions
oseltamivir (Tamiflu®)
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 23 Months
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
29
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Long Beach, California + 24 more
Source: ClinicalTrials.gov public record
Updated May 1, 2013 · Synced Oct 19, 2026, 12:46 AM EDT
Completed No phase listed Observational

"Quidel Reader Influenza A + B Test 510(k) and CLIA Waiver Field Study"

NCT01309568
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
Quidel Corporation
Industry
Eligibility
Not listed
Enrollment
2,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
16
States / cities
Carlsbad, California • Panorama City, California • San Diego, California + 13 more
Source: ClinicalTrials.gov public record
Updated May 12, 2011 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

FLUAD® vs. Fluzone® High-Dose Study

NCT03183908
View directory record Official record
Conditions
Pain, Quality of Life, Injection Site Reaction, Side Effect of Drug, Adverse Drug Event
Interventions
FLUAD®, Fluzone® High-Dose
Biological
Lead sponsor
Duke University
Other
Eligibility
65 Years and older
Enrollment
757 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
4
States / cities
Atlanta, Georgia • Boston, Massachusetts • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 30, 2021 · Synced Oct 19, 2026, 12:46 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Conversational Agent Vaccine Promotion RCT

NCT04884750
View directory record Official record
Conditions
Pandemics
Interventions
ECA-ACE Vaccination Promotion Intervention
Behavioral
Lead sponsor
Northeastern University
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 22, 2023 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 2 Interventional Results available

Safety of and Immune Response to an H1N1 Influenza Vaccine in HIV Infected Pregnant Women

NCT00992017
View directory record Official record
Conditions
HIV Infections, H1N1 Influenza Virus
Interventions
Influenza A (H1N1) monovalent vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 39 Years · Female only
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
29
States / cities
Alhambra, California • La Jolla, California • Long Beach, California + 22 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2021 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity & Safety of GSK's Avian Flu Vaccine 1557484A Given to Adults Aged ≥18 Years

NCT00719043
View directory record Official record
Conditions
Influenza
Interventions
A/turkey H5N1 vaccine, Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted (A/Indonesia), Placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
841 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
10
States / cities
Denver, Colorado • Chicago, Illinois • Metairie, Louisiana + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2018 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 1 Interventional Results available

Standard vs High-Dose Trivalent Inactivated Flu Vaccine in Adult Hematopoetic Stem Cell Transplant (HSCT) Recipients

NCT01215734
View directory record Official record
Conditions
Adult Stem Cell Hematopoetic Transplant
Interventions
High-Dose Trivalent Inactivated Influenza Vaccine (HD-TIV), Standard Dose Trivalent Inactivated Flu Vaccine
Biological
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 8, 2013 · Synced Oct 19, 2026, 12:46 AM EDT
Completed No phase listed Observational

Pilot Study to Assess Flares Following Inactivated Influenza Vaccine in Children With Systemic Lupus Erythematosus (SLE)

NCT02006784
View directory record Official record
Conditions
Systemic Lupus Erythematosus (SLE)
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
8 Years to 18 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 3, 2017 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immune Response to an H5N1 Influenza Vaccine in People Who Have Previously Received an H5N1 or H7N3 Influenza Vaccine and in People Who Have Never Received a Live Attenuated Influenza Vaccine

NCT01443663
View directory record Official record
Conditions
H5N1 Influenza
Interventions
H5N1 Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
22 Years to 54 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 9, 2016 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Clinical Study to Assess the Safety of a New Influenza Vaccine

NCT01104493
View directory record Official record
Conditions
Healthy
Interventions
Monovalent 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
2010
U.S. locations
3
States / cities
South Miami, Florida • Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 18, 2011 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Efficacy of a Plant-derived Quadrivalent Virus-like Particle (VLP) Vaccine in the Elderly

NCT03739112
View directory record Official record
Conditions
Virus Diseases, RNA Virus Infections, Respiratory Tract Diseases, Respiratory Tract Infections
Interventions
Quadrivalent VLP Vaccine, Fluarix Quadrivalent® Comparator Vaccine
Biological
Lead sponsor
Medicago
Industry
Eligibility
65 Years and older
Enrollment
12,794 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
50
States / cities
Mobile, Alabama • Tempe, Arizona • Banning, California + 42 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2023 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Immunological Consequences of Obstructive Sleep Apnea

NCT00214071
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Influenza vaccine
Biological
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 5, 2015 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Not applicable Interventional

Electronic Health Records for Health Promotion

NCT00142077
View directory record Official record
Conditions
Influenza
Interventions
Electronic health record and messaging system
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 5, 2007 · Synced Oct 19, 2026, 12:46 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Motivational Interviewing to Increase Uptake of Drug Checking and Safe Drug Use Behaviors to Reduce Overdose

NCT06855836
View directory record Official record
Conditions
Overdose
Interventions
MI-CHANCE (TS + FTIR + MI), TS + FTIR + Flu and Hepatitis A Education
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
588 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 2 Interventional Results available

Evaluation of the Efficacy and Safety of Peramivir in Subjects With Uncomplicated Acute Influenza.

NCT00419263
View directory record Official record
Conditions
Influenza
Interventions
Peramivir 150 mg, Peramivir 300 mg, Placebo
Drug
Lead sponsor
BioCryst Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
344 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
58
States / cities
Birmingham, Alabama • Jonesboro, Arkansas • Anaheim, California + 45 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2015 · Synced Oct 19, 2026, 12:46 AM EDT
Completed No phase listed Observational

Studies of the Immune Response to Vaccination After Hematopoietic Stem Cell Transplantation

NCT01581164
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplant
Interventions
Influenza vaccine, Varicella vaccine
Biological
Lead sponsor
University of California, San Francisco
Other
Eligibility
5 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 8, 2015 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of Synbiotics as Adjuvant to Influenza Vaccine in Elderly

NCT01304771
View directory record Official record
Conditions
Influenza
Interventions
Synbiotic AKSB
Biological
Lead sponsor
Mayo Clinic
Other
Eligibility
65 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 20, 2012 · Synced Oct 19, 2026, 12:46 AM 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 19, 2026, 12:46 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Immune Responses to Fluzone® Vaccination

NCT00835926
View directory record Official record
Conditions
Influenza
Interventions
Influenza virus vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Oct 19, 2026, 12:46 AM EDT
Completed No phase listed Observational

Study to Determine if the Flu Vaccine Increases the Risk of Muscle Damage in Participants Taking Drugs That Block Certain Proteins Made by Some Types of Immune System Cells

NCT03644498
View directory record Official record
Conditions
Cancer
Interventions
Non-Interventional
Other
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
1,056 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 18, 2024 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety Study of Laninamivir Octanoate TwinCaps® Dry Powder Inhaler in Adults With Influenza

NCT01793883
View directory record Official record
Conditions
Influenza
Interventions
40 mg Laninamivir Octanoate, 80 mg Laninamivir Octanoate, Placebo
Drug
Lead sponsor
Biota Scientific Management Pty Ltd
Industry
Eligibility
18 Years to 64 Years
Enrollment
639 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
70
States / cities
Scottsboro, Alabama • Camp Verde, Arizona • Chandler, Arizona + 59 more
Source: ClinicalTrials.gov public record
Updated May 31, 2018 · Synced Oct 19, 2026, 12:46 AM EDT
Enrolling by invitation Not applicable Interventional

Personalized Ventilator Settings for Patients on ECMO

NCT07673250
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome (ARDS), Extracorporeal Membrane Oxygenation, Respiratory Failure Patients Treated With ECMO, Respiratory Failure, ICU, Ventilator Induced Lung Injury
Interventions
Personalized Positive End-Expiratory Pressure (PEEP)
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 19, 2026, 12:46 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Different Formulations of an Adjuvanted A/H1N1 Pandemic Vaccine in Healthy Adults and the Elderly

NCT00952276
View directory record Official record
Conditions
Influenza, Swine-origin A/H1N1 Influenza
Interventions
Monovalent Subvirion A/H1N1 influenza vaccine with adjuvant, Monovalent Subvirion A/H1N1 influenza vaccine, Normal saline solution
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
548 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
15
States / cities
Anaheim, California • Fountain Valley, California • South Miami, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 3, 2011 · Synced Oct 19, 2026, 12:46 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Baloxavir Versus Oseltamivir for Nursing Home Influenza Outbreaks

NCT05012189
View directory record Official record
Conditions
Influenza, Influenza, Human, Influenza -Like Illness
Interventions
Oseltamivir, Baloxavir
Drug
Lead sponsor
Insight Therapeutics, LLC
Other
Eligibility
18 Years to 120 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 15, 2023 · Synced Oct 19, 2026, 12:46 AM EDT