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ClinicalTrials.gov public records Last synced Oct 21, 2026, 10:12 AM EDT

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Showing 121–144 of 1,140 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of Intradermal Quadrivalent Influenza Vaccine in Adults Aged 18 Through 64 Years

NCT01712984
View directory record Official record
Conditions
Influenza
Interventions
Influenza Virus Vaccine USP Quadrivalent, (Zonal Purified Subvirion) 2012 2013 Formulation, Influenza Virus Vaccine USP Trivalent Types A and B (Zonal Purified Subvirion) Fluzone Intradermal
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years to 64 Years
Enrollment
3,360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
38
States / cities
Hoover, Alabama • Huntsville, Alabama • Chandler, Arizona + 32 more
Source: ClinicalTrials.gov public record
Updated May 7, 2015 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Probiotics (L. Helveticus, B. Longum, and B. Bifidum) on Immune Function and Digestive Health

NCT01709825
View directory record Official record
Conditions
Healthy
Interventions
Probiotic- Bifidobacterium Bifidum, Sugar Pill, Probiotic- Lactobacillus helveticus, Probiotic- Bifidobacterium longum ss. Infantis R0033
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
583 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 29, 2015 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy and Safety of CR6261 in an H1N1 Influenza Healthy Volunteer Human Challenge Model

NCT02371668
View directory record Official record
Conditions
H1N1 Influenza Healthy Volunteers
Interventions
CR6261, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 17, 2020 · Synced Oct 21, 2026, 10:12 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

High-Dose Influenza Vaccine in Nursing Homes

NCT01815268
View directory record Official record
Conditions
Influenza
Interventions
HD Vaccine, SD Vaccine, Free Vaccine, Usual Care
Biological
Lead sponsor
Insight Therapeutics, LLC
Other
Eligibility
65 Years and older
Enrollment
823 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
3
States / cities
Cleveland, Ohio • Providence, Rhode Island • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Trial to Assess the Shedding,Immunogenicity, and Safety of FluMist Administered to Healthy Individuals 5-49 Years of Age

NCT00192140
View directory record Official record
Conditions
Influenza
Interventions
FluMist
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
5 Years to 49 Years
Enrollment
345 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
11
States / cities
Miami, Florida • Chicago, Illinois • Bardstown, Kentucky + 8 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2007 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Inactivated Influenza A/H5N1 Vaccine in the Elderly

NCT00230750
View directory record Official record
Conditions
Influenza
Interventions
Influenza A/H5N1 Vaccine, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
65 Years and older
Enrollment
261 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
4
States / cities
Torrance, California • Rochester, New York • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2013 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Fluarix Immunogenicity and Safety Trial

NCT00100399
View directory record Official record
Conditions
Influenza
Interventions
Fluarix
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
1,050 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
4
States / cities
Baltimore, Maryland • Rochester, New York • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 21, 2026, 10:12 AM EDT
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 21, 2026, 10:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Replication-Competent Adenovirus 4-vectored Vaccine for Avian Influenza H5N1

NCT01006798
View directory record Official record
Conditions
Bird Flu, Influenza
Interventions
Placebo, Ad4-H5-Vtn, Sanofi Pasteur Influenza Virus Vaccine, H5N1
Other · Biological
Lead sponsor
Emergent BioSolutions
Industry
Eligibility
18 Years to 40 Years
Enrollment
166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
4
States / cities
Lexington, Kentucky • Kansas City, Missouri • Rochester, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Seasonal Influenza DNA Vaccine & Seasonal Influenza Trivalent Inactivated Vaccine (TIV) in Children & Adolescents

NCT01609998
View directory record Official record
Conditions
Influenza
Interventions
Seasonal Influenza DNA vaccine, TIV
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Years to 17 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
5
States / cities
Atlanta, Georgia • St Louis, Missouri • Lebanon, New Hampshire + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2018 · Synced Oct 21, 2026, 10:12 AM EDT
Withdrawn Phase 1Phase 2 Interventional Accepts healthy volunteers

MAS-1 Adjuvanted Compared to Unadjuvanted Influenza Vaccines in the Elderly

NCT01623232
View directory record Official record
Conditions
Influenza Vaccines, Aged
Interventions
MAS-1 adjuvant and influenza HA antigen, standard dose, inactivated trivalent influenza vaccine (TIV)
Biological
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
65 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
4
States / cities
Palo Alto, California • Iowa City, Iowa • Minneapolis, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 26, 2012 · Synced Oct 21, 2026, 10:12 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Recombinant Influenza Vaccination in U.S. Nursing Homes

NCT03965195
View directory record Official record
Conditions
Influenza, Influenza -Like Illness, Influenza, Human
Interventions
Recombinant Influenza Vaccine, Standard Dose Quadrivalent Influenza Vaccine
Biological
Lead sponsor
Insight Therapeutics, LLC
Other
Eligibility
18 Years to 120 Years
Enrollment
1,989 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 15, 2023 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Performance Feedback in Health Care

NCT04579614
View directory record Official record
Conditions
Influenza
Interventions
The Impact of Performance Feedback and Variable Goal Setting on Flu Vaccination Success Rates of Providers
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
Not listed
Enrollment
595 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 8, 2020 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

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

NCT02258334
View directory record Official record
Conditions
Influenza
Interventions
Fluzone® Quadrivalent vaccine, 2014-2015 formulation, Fluzone I®ntradermal vaccine, 2014-2015 formulation, Fluzone High Dose vaccine, 2014-2015 formulation
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
4
States / cities
Santa Rosa, California • Council Bluffs, Iowa • Metairie, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 19, 2015 · Synced Oct 21, 2026, 10:12 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Flublok v. Standard Dose Vaccine Effectiveness Among Kaiser Permanente Northern California Adults 18-64 Years

NCT03694392
View directory record Official record
Conditions
Influenza, Pneumonia, Lower Respiratory Tract Infection, Acute Myocardial Infarction, Congestive Heart Failure, Stroke
Interventions
Flublok Quadrivalent, Standard Dose Inactivated Influenza Vaccine (SD-IIV)
Biological
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years to 64 Years
Enrollment
2,776,278 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Oct 21, 2026, 10:12 AM EDT
Completed No phase listed Observational

Covid Flu A/B and RSV 4 in 1 Diagnostic Test

NCT07308158
View directory record Official record
Conditions
Influenza A, Influenza B, COVID - 19, RSV
Interventions
Investigational Flu A/B Covid-19 and RSV Diagnostic Test
Diagnostic Test
Lead sponsor
iHealth Labs inc
Industry
Eligibility
6 Months and older
Enrollment
1,119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
21
States / cities
Birmingham, Alabama • Trussville, Alabama • Dublin, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Oct 21, 2026, 10:12 AM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Flu COVID Vaccine Views

NCT07871448
View directory record Official record
Conditions
Influenza, COVID-19, Vaccination Willingness
Interventions
Survey
Other
Lead sponsor
George Washington University
Other
Eligibility
18 Years to 89 Years
Enrollment
550 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
2
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Safety and Immunogenicity of Intranasal Nanoemulsion Adjuvanted Recombinant Pandemic Flu Vaccine in Healthy Adults

NCT05397119
View directory record Official record
Conditions
Influenza, Pandemic
Interventions
BW-1014: 25 µg rH5 in 20% NE - pipette - IN, BW-1014: 50 µg rH5 in 20% NE - pipette - IN, BW-1014: 100 µg rH5 in 20% NE - pipette - IN, rH5 (100 µg) control - pipette - IN, Saline (Placebo) - pipette - IN, H5N1 IIV - IM
Biological
Lead sponsor
BlueWillow Biologics
Industry
Eligibility
18 Years to 45 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 21, 2026, 10:12 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 21, 2026, 10:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Stopping Upper Respiratory Infections and Flu in the Family: The Stuffy Trial

NCT00448981
View directory record Official record
Conditions
Respiratory Tract Infections, Common Cold
Interventions
Education, Hand Sanitizer, Face Masks
Behavioral · Device
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
Not listed
Enrollment
2,788 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Trivalent, Live, Cold Adapted Influenza Vaccine (CAIV-T) Against Inactivated Influenza Vaccine (TIV) in Children 6-59 Months of Age

NCT00128167
View directory record Official record
Conditions
Influenza
Interventions
Liquid CAIV-T
Drug
Lead sponsor
MedImmune LLC
Industry
Eligibility
6 Months to 59 Months
Enrollment
8,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
107
States / cities
Hoover, Alabama • Tuscaloosa, Alabama • Little Rock, Arkansas + 96 more
Source: ClinicalTrials.gov public record
Updated Sep 13, 2021 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Not applicable Interventional

Impact of Influenza Vaccination in Pregnancy Video Education

NCT02151201
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccination video education, Hand washing video education
Behavioral
Lead sponsor
The Cleveland Clinic
Other
Eligibility
Female only
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 2, 2014 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 2 Interventional Results available

Evaluation of Efficacy and Safety of Peramivir in Adults With Acute Serious or Potentially Life-threatening Influenza

NCT00453999
View directory record Official record
Conditions
Influenza
Interventions
Peramivir 200 mg, Peramivir 400 mg, Oseltamivir
Drug
Lead sponsor
BioCryst Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
41
States / cities
Mobile, Alabama • Jonesboro, Arkansas • Orange, California + 33 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2015 · Synced Oct 21, 2026, 10:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Sanofi H1N1 Influenza Vaccine Administered at Two Dose Levels in Adult and Elderly Populations

NCT00943631
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 and older
Enrollment
406 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
3
States / cities
Baltimore, Maryland • Durham, North Carolina • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 31, 2012 · Synced Oct 21, 2026, 10:12 AM EDT