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ClinicalTrials.gov public records Last synced Oct 7, 2026, 4:48 AM EDT

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Showing 49–72 of 1,101 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Influenza Virus Vaccine Clear all
Completed Phase 4 Interventional Accepts healthy volunteers

Duration of Immune Response to Influenza Vaccination in Patients With RA

NCT02311855
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
Influenza vaccine
Biological
Lead sponsor
Bassett Healthcare
Other
Eligibility
40 Years to 75 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Cooperstown, New York
Source: ClinicalTrials.gov public record
Updated Jan 6, 2017 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of mRNA-based Influenza and SARS-CoV-2 (COVID-19) Multi-component Vaccines in Healthy Adults

NCT05827926
View directory record Official record
Conditions
SARS-CoV-2, Influenza
Interventions
Influenza Vaccine 1, mRNA-1083.1, mRNA-1083.2, mRNA-1083.3, Investigational Influenza Vaccine 1, Investigational COVID-19 Vaccine 1, COVID-19 Vaccine 1, Investigational Influenza Vaccine 2, Influenza Vaccine 2, mRNA-1083, Investigational COVID-19 Vaccine 2, COVID-19 Vaccine 2
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 79 Years
Enrollment
1,758 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
69
States / cities
Chandler, Arizona • Colton, California • Huntington Beach, California + 59 more
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Not applicable Interventional Results available

The Respiratory Protection Effectiveness Clinical Trial

NCT01249625
View directory record Official record
Conditions
Influenza, Respiratory Syncytial Viruses, Paramyxoviridae Infections, Coronavirus, Rhinovirus
Interventions
N95 Respirator, Medical/surgical mask
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
2,862 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2018
U.S. locations
7
States / cities
Aurora, Colorado • Denver, Colorado • Washington D.C., District of Columbia + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2019 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Safety Study of Seasonal Influenza Vaccine by Jet Injection

NCT00987350
View directory record Official record
Conditions
Healthy Adults
Interventions
LectraJet, TIV by jet injection, Seasonal Trivalent Influenza Vaccine
Device · Biological
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 49 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated May 3, 2021 · Synced Oct 7, 2026, 4:48 AM EDT
Completed No phase listed Observational Results available

This Study Intends to Describe the Characteristics of Patients Given the Pfizer-BioNTech Bivalent mRNA COVID-19 Vaccine and Any Commercially Available Influenza Vaccines at the Same Time Versus at Different Times.

NCT05858450
View directory record Official record
Conditions
Influenza, Human, COVID-19
Interventions
Comirnaty, Quadrivalent Influenza Vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
3,442,996 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 20, 2024 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Immunogenicity and Safety of Seqirus Quadrivalent Influenza Vaccine (QIV) in a Pediatric Population 5 Through 17 Years of Age

NCT02545543
View directory record Official record
Conditions
Influenza, Human
Interventions
Seqirus QIV, Comparator QIV
Biological
Lead sponsor
Seqirus
Industry
Eligibility
5 Years to 17 Years
Enrollment
2,278 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
32
States / cities
Huntsville, Alabama • Madera, California • Ontario, California + 29 more
Source: ClinicalTrials.gov public record
Updated May 23, 2018 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mail Outreach To Increase Vaccination Acceptance Through Engagement

NCT02243774
View directory record Official record
Conditions
Influenza, Human, Influenza, Human Flu
Interventions
Core letter signed by Surgeon General, Core letter signed by the Director of the National Vaccine Program, Core letter signed by Surgeon General + implementation prompt, Core letter signed by SG + enhanced implementation prompt
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
66 Years and older
Enrollment
228,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 12, 2017 · Synced Oct 7, 2026, 4:48 AM EDT
Completed No phase listed Observational

Pharmacokinetics of Understudied Drugs Administered to Children Per Standard of Care

NCT01431326
View directory record Official record
Conditions
Adenovirus, Anesthesia, Anxiety, Anxiolysis, Autism, Autistic Disorder, Bacterial Meningitis, Bacterial Septicemia, Benzodiazepine, Bipolar Disorder, Bone and Joint Infections, Central Nervous System Infections, Convulsions, Cytomegalovirus Retinitis, Early-onset Schizophrenia Spectrum Disorders, Epilepsy, General Anesthesia, Gynecologic Infections, Herpes Simplex Virus, Infantile Hemangioma, Infection, Inflammation, Inflammatory Conditions, Intra-abdominal Infections, Lower Respiratory Tract Infections, Migraines, Pain, Pneumonia, Schizophrenia, Sedation, Seizures, Skeletal Muscle Spasms, Skin and Skin-structure Infections, Treatment-resistant Schizophrenia, Urinary Tract Infections, Withdrawal, Sepsis, Gram-negative Infection, Bradycardia, Cardiac Arrest, Cardiac Arrhythmia, Staphylococcal Infections, Nosocomial Pneumonia, Neuromuscular Blockade, Methicillin Resistant Staphylococcus Aureus, Endocarditis, Neutropenia, Headache, Fibrinolytic Bleeding, Pulmonary Arterial Hypertension, CMV Retinitis, Hypertension, Chronic Kidney Diseases, Hyperaldosteronism, Hypokalemia, Heart Failure, Hemophilia, Heavy Menstrual Bleeding, Insomnia
Interventions
The POPS study is collecting PK data on children prescribed the following drugs of interest per standard of care:
Drug
Lead sponsor
Daniel Benjamin
Other
Eligibility
Up to 21 Years
Enrollment
3,520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
43
States / cities
Anchorage, Alaska • Little Rock, Arkansas • La Jolla, California + 37 more
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Oct 7, 2026, 4:48 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

A Case Control Study of the Effectiveness of Q/LAIV Versus Inactivated Influenza Vaccine and No Vaccine in Subjects 2-17 Years of Age

NCT01997450
View directory record Official record
Conditions
Influenza Vaccine Effectiveness
Interventions
Not listed
Lead sponsor
MedImmune LLC
Industry
Eligibility
2 Years to 17 Years
Enrollment
4,121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
8
States / cities
Gainesville, Florida • Bloomington, Minnesota • Winston-Salem, North Carolina + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Oct 7, 2026, 4:48 AM 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 7, 2026, 4:48 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Study of ALVR106 in Patients With Respiratory Viral Infections After Hematopoietic Cell and Solid Organ Transplant

NCT04933968
View directory record Official record
Conditions
Respiratory Tract Viral Infections, Human Metapneumovirus (hMPV) Infection, Parainfluenza (PIV) Infection, Respiratory Syncytial Viral (RSV) Infection, Influenza Infection
Interventions
ALVR106, Placebo
Biological
Lead sponsor
AlloVir
Industry
Eligibility
17 Years to 75 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
21
States / cities
Scottsdale, Arizona • Duarte, California • Gainesville, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Jun 6, 2024 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of H1N1 Vaccines in Children Aged 6 Months to Less Than 9 Years of Age

NCT00976820
View directory record Official record
Conditions
Influenza
Interventions
GSK2340274A, GSK2340273A
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 8 Years
Enrollment
323 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
17
States / cities
Conway, Arkansas • Little Rock, Arkansas • Sacramento, California + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2017 · Synced Oct 7, 2026, 4:48 AM EDT
Not yet recruiting Not applicable Interventional

Rule-Based High-Risk Flu

NCT07798882
View directory record Official record
Conditions
Influenza, Vaccination, Risk Reduction, Health Behavior, Health Promotion
Interventions
Risk reduction
Behavioral
Lead sponsor
Geisinger Clinic
Other
Eligibility
18 Years and older
Enrollment
51,215 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Sanofi 2017 H7N9 With/Without AS03 in Adults/Elderly

NCT03312231
View directory record Official record
Conditions
Avian Influenza, Influenza Immunisation
Interventions
AS03, Inactivated influenza H7N9 vaccine, Phosphate Buffered Saline (PBS) diluent
Drug · Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 99 Years
Enrollment
720 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
5
States / cities
Decatur, Georgia • Iowa City, Iowa • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Immunogenicity of GSK Biologicals' Seasonal Influenza Vaccine in Children

NCT01198756
View directory record Official record
Conditions
Influenza
Interventions
Quadrivalent seasonal influenza vaccine GSK2282512A, Fluarix™ VB, Fluarix™ YB
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 17 Years
Enrollment
3,109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
16
States / cities
Chandler, Arizona • Scottsdale, Arizona • Harrisburg, Arkansas + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2018 · Synced Oct 7, 2026, 4:48 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Acute Respiratory Illness Surveillance (AcRIS) With Mobile Application in a Low-Interventional Decentralized Study.

NCT04748445
View directory record Official record
Conditions
Healthy
Interventions
SARS-CoV-2/Influenza/RSV RT-PCR
Diagnostic Test
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
9,151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Feb 23, 2024 · Synced Oct 7, 2026, 4:48 AM 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 7, 2026, 4:48 AM 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 7, 2026, 4:48 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Immune Response to Vaccination in Patients Receiving Single Drug Immunosuppression

NCT01733056
View directory record Official record
Conditions
Immunosuppression
Interventions
Flu Vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years to 89 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 21, 2014 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 2 Interventional Results available

Comparing the Efficacy, Safety, and Tolerability of Combination Antivirals (Amantadine, Ribavirin, Oseltamivir) Versus Oseltamivir for the Treatment of Influenza in Adults at Risk for Complications

NCT01227967
View directory record Official record
Conditions
Influenza
Interventions
Amantadine, Ribavirin, Oseltamivir, Oseltamivir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
881 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
69
States / cities
Birmingham, Alabama • Chandler, Arizona • Glendale, Arizona + 58 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Inactivated Influenza Virus Vaccine Among Healthy Children 6-12 Weeks of Age

NCT00242424
View directory record Official record
Conditions
Inactivated Influenza Vaccine
Interventions
2005-2006 trivalent inactivated influenza vaccine
Biological
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
42 Days to 84 Days
Enrollment
1,375 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 28, 2009 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Eldery High Dose TIV 2005

NCT00115531
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
65 Years and older
Enrollment
414 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
5
States / cities
Iowa City, Iowa • Baltimore, Maryland • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2014 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Novartis H1N1 Vaccine in Pregnant Women

NCT00992719
View directory record Official record
Conditions
Influenza
Interventions
Inactivated H1N1 Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 39 Years · Female only
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
6
States / cities
Baltimore, Maryland • St Louis, Missouri • Durham, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2013 · Synced Oct 7, 2026, 4:48 AM EDT
Completed Not applicable Interventional Results available

Evaluating the Use of Oseltamivir for the Treatment of Influenza in Adults

NCT01314911
View directory record Official record
Conditions
Influenza, Human
Interventions
Oseltamivir, Placebo
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
716 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
44
States / cities
Chandler, Arizona • Costa Mesa, California • Garden Grove, California + 37 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2019 · Synced Oct 7, 2026, 4:48 AM EDT