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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Influenza Prophylaxis Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response to a Bird Flu Virus Vaccine (H9N2) in Healthy Adults (Study A)

NCT00110279
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
H9N2 (6-2) AA ca Reassortant (A/chicken/Hong Kong/G9/97 x A/Ann Arbor/6/60 ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 20, 2008 · Synced Jul 24, 2026, 7:57 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 3, 2022 · Synced Jul 24, 2026, 7:57 AM EDT
Active, not recruiting Phase 3 Interventional

A Study to Evaluate the Safety and Efficacy of CD388 for Prevention of Influenza

NCT07159763
View directory record Official record
Conditions
Influenza
Interventions
CD388 Injection, Placebo
Combination Product
Lead sponsor
Cidara Therapeutics Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
12 Years and older
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
120
States / cities
Anniston, Alabama • Cullman, Alabama • Glendale, Arizona + 106 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Influenza Virus Vaccine Plus Vitamin A and D Supplements for Prevention of Respiratory Virus Infections in Children

NCT02649192
View directory record Official record
Conditions
Healthy Participants
Interventions
Influenza virus vaccine, Vitamins A and D, Placebo
Biological · Dietary Supplement · Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
2 Years to 8 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 28, 2019 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of the Safety and Immunogenicity of a Live Attenuated Virus Vaccine for the Prevention of H2N3 Influenza

NCT01175122
View directory record Official record
Conditions
Influenza A Virus Infection
Interventions
H2N3 MO 2003/AA ca Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 42 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2013 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Influenza Vaccination for Parents and Other Caregivers in the Pediatric Medical Home

NCT00812110
View directory record Official record
Conditions
Influenza
Interventions
Influenzae vaccine
Drug
Lead sponsor
Akron Children's Hospital
Other
Eligibility
18 Years and older
Enrollment
336 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Akron, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 22, 2013 · Synced Jul 24, 2026, 7:57 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immunogenicity of a Live Attenuated Virus Vaccine to Prevent Influenza H3N2v Disease

NCT02883426
View directory record Official record
Conditions
Influenza
Interventions
H3N2v MN 2010/AA ca live attenuated influenza vaccine (LAIV), H3N2v inactivated subvirion influenza vaccine, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Years to 26 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2016
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated May 2, 2018 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Group Study of the Safety of and Immune Response to a Single Dose of Bird Flu Vaccine (H7N3) in Healthy Adults

NCT00853255
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
Live Influenza A Vaccine H7N3 (6-2) AA ca Recombinant (A/chicken/British Columbia/CN-6/2004 x A/Ann Arbor/6/60 ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 2, 2013 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Single Group Study of the Safety of and Immune Response to a Bird Flu Virus Vaccine (H5N1) in Healthy Adults

NCT00488046
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
H5N1 (6-2) AA ca Recombinant (A/Hong Kong/213/2003 x A/AnnArbor/6/60 ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 19, 2007 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacodynamic Open-Label Trial With VXA-A1.1 Oral H1 Vaccine in Healthy Adults

NCT03121339
View directory record Official record
Conditions
Seasonal Influenza Preventative Vaccine Pharmacodynamics
Interventions
VXA-A1.1 H1 Tablet Vaccine (small), VXA-A1.1 H1 Tablet Vaccine (large)
Biological
Lead sponsor
Vaxart
Industry
Eligibility
18 Years to 49 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 29, 2018 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 2 Interventional

Alternative Oseltamivir Dosing Strategies

NCT00334529
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
4
States / cities
Los Angeles, California • Palo Alto, California • Bethesda, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 4 Interventional Results available

Influenza Vaccination for Flu Prevention in Patients With Plasma Cell Disorders

NCT04080531
View directory record Official record
Conditions
Plasma Cell Neoplasm
Interventions
Pneumococcal 13-valent Conjugate Vaccine, Trivalent Influenza Vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 27, 2025 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

D2560C00015 FluMist Annual Safety Study 2018

NCT03564444
View directory record Official record
Conditions
Influenza, Healthy
Interventions
Bivalent 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
2018
U.S. locations
2
States / cities
Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 25, 2019 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Pomegranate Products for Prevention of Common Cold

NCT00617318
View directory record Official record
Conditions
Influenza, Common Cold, Cough, Headache, Fever
Interventions
Pomegranate, Placebo
Dietary Supplement
Lead sponsor
Texas Heart Institute
Other
Eligibility
21 Years to 49 Years
Enrollment
461 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 17, 2008 · Synced Jul 24, 2026, 7:57 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 2016-2017 Season

NCT02743117
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
301 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
3
States / cities
South Miami, Florida • Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 3, 2017 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 4 Interventional

A Study of Tamiflu (Oseltamivir) for Seasonal Prophylaxis of Influenza in Children.

NCT00412555
View directory record Official record
Conditions
Influenza
Interventions
oseltamivir [Tamiflu]
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
1 Year to 12 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
4
States / cities
West Palm Beach, Florida • Pittsburgh, Pennsylvania • Jackson, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 17, 2020 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Single Group Study of the Safety of and Immune Response to a Bird Flu Vaccine (H7N3) in Healthy Adults

NCT00516035
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
Live Influenza A Vaccine H7N3 (6-2) AA ca Recombinant (A/chicken/British Columbia/CN-6/2004 x A/Ann Arbor/6/60 ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 17, 2015 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 1 Interventional

Poly-ICLC to Prevent Respiratory Viral Infections A Safety Study

NCT00646152
View directory record Official record
Conditions
Influenza, Severe Acute Respiratory Distress Syndrome, Smallpox, Ebola, Unknown Respiratory Viruses
Interventions
Poly-ICLC
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Immunogenicity of ND1.1 by Delivery Directly to the Ileum

NCT01698060
View directory record Official record
Conditions
Avian Influenza
Interventions
ND1.1
Biological
Lead sponsor
Vaxart
Industry
Eligibility
18 Years to 49 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 9, 2014 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influenza and Text Messaging in Pregnancy

NCT01248520
View directory record Official record
Conditions
Pregnancy
Interventions
influenza and general health information, general health information
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
14 Years to 50 Years · Female only
Enrollment
216 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 12, 2018 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of a Live Attenuated H7N9 Influenza Virus Vaccine in Healthy Adults

NCT01995695
View directory record Official record
Conditions
Influenza A Virus, H7N9 Subtype
Interventions
Live attenuated H7N9 A/Anhui/13 ca influenza virus vaccine, Inactivated subvirion H7N9 influenza vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jul 26, 2016 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Not applicable Interventional

Evaluation of the School Kids Influenza Prevention Project

NCT03307642
View directory record Official record
Conditions
Childhood Influenza Vaccination, School-located Influenza Vaccination
Interventions
Text message notification
Other
Lead sponsor
University of Rochester
Other
Eligibility
4 Years to 19 Years
Enrollment
18,540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 11, 2018 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of Ad26.COV2.S and Influenza Vaccines in Healthy Adults

NCT05091307
View directory record Official record
Conditions
COVID-19 Prevention
Interventions
Ad26.COV2.S, Placebo, Influenza Vaccine
Biological · Other
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years and older
Enrollment
861 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
17
States / cities
Tempe, Arizona • San Diego, California • Coral Gables, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated May 24, 2025 · Synced Jul 24, 2026, 7:57 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Clinical Study to Evaluate an Experimental Universal Influenza Vaccine, INFLUENZA G1 mHA, in Healthy Adults

NCT05901636
View directory record Official record
Conditions
Influenza Prevention
Interventions
INFLUENZA G1 mHA, Placebo, Al(OH)3
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 45 Years
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
4
States / cities
Miami Lakes, Florida • Lenexa, Kansas • Metairie, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 7, 2025 · Synced Jul 24, 2026, 7:57 AM EDT