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ClinicalTrials.gov public records Last synced Oct 8, 2026, 3:01 AM EDT

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Showing 49–72 of 927 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Orthomyxoviridae Infections Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase I Safety and Immunogenicity Study of Mix and Match of Licensed Flu Vaccine and Flumist

NCT00231907
View directory record Official record
Conditions
Influenza
Interventions
FluMist, Fluzone
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Months to 35 Months
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
3
States / cities
St Louis, Missouri • Cincinnati, Ohio • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 8, 2026, 3:01 AM 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 8, 2026, 3:01 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Fluzone® Quadrivalent, Fluzone® Intradermal Quadrivalent, and Fluzone® High-Dose, Influenza Vaccines in Adults

NCT02563093
View directory record Official record
Conditions
Influenza
Interventions
Fluzone Quadrivalent vaccine, 2015-2016 formulation, No Preservative, Fluzone Intradermal Quadrivalent vaccine, 2015-2016 formulation, Fluzone High-Dose vaccine, 2015-2016 formulation
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
4
States / cities
Santa Rosa, California • Council Bluffs, Iowa • Metairie, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2016 · Synced Oct 8, 2026, 3:01 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Evaluating Modes of Influenza Transmission 2b Baseline SAR

NCT07342556
View directory record Official record
Conditions
Influenza (Healthy Volunteers)
Interventions
Exposure to Donors with naturally acquired influenza virus infection
Other
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years to 49 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Oct 8, 2026, 3:01 AM EDT
Completed No phase listed Observational

Chart Review of Antivirals for Influenza in Infants

NCT00311701
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 11 Months
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
15
States / cities
Birmingham, Alabama • Pulaski, Arkansas • Orange, California + 12 more
Source: ClinicalTrials.gov public record
Updated May 13, 2011 · Synced Oct 8, 2026, 3:01 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 8, 2026, 3:01 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of the Safety and Immunogenicity of H1N1 Vaccine

NCT01177202
View directory record Official record
Conditions
H1N1 Flu
Interventions
HAC1 Vaccine
Biological
Lead sponsor
Fraunhofer, Center for Molecular Biotechnology
Industry
Eligibility
18 Years to 50 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 26, 2016 · Synced Oct 8, 2026, 3:01 AM EDT
Completed Not applicable Interventional Results available

Evaluation of the Roche Liat Flu/RSV Assay for Management of Influenza in the Emergency Department

NCT02899065
View directory record Official record
Conditions
Influenza, Human
Interventions
Procalcitonin, Pharmacist-Led Education
Diagnostic Test · Other
Lead sponsor
University of California, Davis
Other
Eligibility
Up to 49 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Oct 17, 2023 · Synced Oct 8, 2026, 3:01 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Study on a High-Dose Quadrivalent Influenza Vaccine Compared With Standard-Dose Quadrivalent Influenza Vaccine in Children 6 Months Through 35 Months of Age

NCT04544267
View directory record Official record
Conditions
Influenza
Interventions
Quadrivalent influenza vaccine, high-dose, Quadrivalent influenza vaccine, standard dose
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 35 Months
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
10
States / cities
San Diego, California • Miami, Florida • Atlanta, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 24, 2025 · Synced Oct 8, 2026, 3:01 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Modified mRNA Vaccines in Healthy Adults

NCT05397223
View directory record Official record
Conditions
SARS-CoV-2, Seasonal Influenza, Respiratory Syncytial Virus, Cytomegalovirus
Interventions
mRNA-1273, mRNA-1010, mRNA-1345, FLUAD®, mRNA-1647
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
308 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
8
States / cities
Hollywood, Florida • Savannah, Georgia • Sioux City, Iowa + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 8, 2026, 3:01 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Evaluating 13 Valent Pneumococcal Conjugate Vaccine With Trivalent Inactivated Influenza Vaccine

NCT00521586
View directory record Official record
Conditions
Influenza
Interventions
13 valent pneumococcal conjugate vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
50 Years to 59 Years
Enrollment
1,116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
41
States / cities
Chandler, Arizona • Rolling Hills Estates, California • Aurora, Colorado + 29 more
Source: ClinicalTrials.gov public record
Updated Apr 9, 2015 · Synced Oct 8, 2026, 3:01 AM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

B Cell and Antibody Response to Seasonal Influenza Vaccines in Younger and Older Adults

NCT04101838
View directory record Official record
Conditions
Influenza
Interventions
Fluzone, Flucelvax, Fluzone High-Dose, Fluad
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 8, 2026, 3:01 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study to Evaluate the Safety of 1 New 6:2 Influenza Virus Reassortant in Adults for the 2017-2018 Season

NCT03158038
View directory record Official record
Conditions
Influenza, Healthy
Interventions
Monovalent Influenza Vaccine, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
2
States / cities
Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 4, 2019 · Synced Oct 8, 2026, 3:01 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 8, 2026, 3:01 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of mRNA-1020 and mRNA-1030 Seasonal Influenza Vaccines in Healthy Adults

NCT05333289
View directory record Official record
Conditions
Seasonal Influenza
Interventions
mRNA-1030, mRNA-1020, mRNA-1010, Active Comparator
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
572 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
15
States / cities
Phoenix, Arizona • Coral Gables, Florida • Jupiter, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2024 · Synced Oct 8, 2026, 3:01 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 8, 2026, 3:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Early Immune Responses to Inactivated Influenza Vaccine: a Pilot Study

NCT01522248
View directory record Official record
Conditions
Influenza Virus Vaccine
Interventions
Trivalent Inactivated Influenza vaccine
Biological
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 15, 2019 · Synced Oct 8, 2026, 3:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PROmotion of FLU Vaccine Uptake in the Emergency Department - PROFLUVAXED

NCT05836818
View directory record Official record
Conditions
Influenza Vaccination
Interventions
Question (Q), Messaging (M)
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
776 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
8
States / cities
San Francisco, California • Durham, North Carolina • Philadelphia, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated May 31, 2024 · Synced Oct 8, 2026, 3:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Free Air Portable Air Powered Respirator

NCT02487147
View directory record Official record
Conditions
Influenza
Interventions
Free Air Portable Air Powered Respirator, N95 Respirator
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 49 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 4, 2022 · Synced Oct 8, 2026, 3:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

SOP Toolkit in Diverse Practices Implemented & Tested With RE-AIM

NCT01868334
View directory record Official record
Conditions
Adult Influenza Vaccinations, Adult PPSV Vaccinations, Adult Tdap/Td Vaccinations
Interventions
Pillar 1: Convenient Vaccination Services, Pillar 2: Patient notification, Pillar 3: Enhanced Office Systems, Pillar 4: Motivation
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
70,549 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 6, 2023 · Synced Oct 8, 2026, 3:01 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Adaptive Immune Responses and Repertoire in Influenza Vaccination and Infection (SLVP031)

NCT03028987
View directory record Official record
Conditions
Influenza
Interventions
Fluzone®, FluMist®
Biological
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 49 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2017 · Synced Oct 8, 2026, 3:01 AM EDT
Completed Phase 1Phase 2 Interventional Results available

A Phase 2a to Evaluate the Safety of MEDI8852 in Adults With Uncomplicated Influenza

NCT02603952
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir, MEDI8852, Placebo
Drug
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
22
States / cities
Canoga Park, California • Long Beach, California • Los Angeles, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2018 · Synced Oct 8, 2026, 3:01 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Immune Defense Protein Impact On Respiratory Immune Outcomes

NCT07431840
View directory record Official record
Conditions
Upper Respiratory Disease, Influenza, Viral Upper Respiratory Infection
Interventions
Immune Defense Protein 50mg Dose, IDP 200mg Dose, Matching Placebo
Dietary Supplement
Lead sponsor
Quantec Ltd
Industry
Eligibility
60 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 8, 2026, 3:01 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of A/H1N1-SOIV (Swine Flu) Vaccine With and Without Adjuvant in Non-Elderly and Elderly Adults

NCT00973349
View directory record Official record
Conditions
Influenza
Interventions
MF59-eH1N1_f
Biological
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
2,719 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
20
States / cities
Miami, Florida • Lenexa, Kansas • Omaha, Nebraska + 16 more
Source: ClinicalTrials.gov public record
Updated Dec 7, 2015 · Synced Oct 8, 2026, 3:01 AM EDT