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ClinicalTrials.gov public records Last synced Oct 17, 2026, 11:46 PM EDT

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Showing 865–888 of 1,125 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Influenza Virus Vaccine Clear all
Completed Phase 1 Interventional

HIV Vaccine Designed for HIV Infected Adults Taking Anti-HIV Drugs

NCT00056758
View directory record Official record
Conditions
HIV Infections
Interventions
Autologous Dendritic Cell HIV Vaccination
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 27, 2007 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Phase 1 Interventional

Anti-Influenza Hyperimmune Intravenous Immunoglobulin Pilot Study (INSIGHT 005: Flu-IVIG Pilot)

NCT02008578
View directory record Official record
Conditions
Influenza
Interventions
Intravenous hyperimmune immunoglobulin (Flu-IVIG), Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
11
States / cities
San Diego, California • Denver, Colorado • Washington D.C., District of Columbia + 8 more
Source: ClinicalTrials.gov public record
Updated Aug 15, 2016 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Phase 2 Interventional Results available

H1N1 Vaccine at Two Dose Levels in HIV Positive Adults

NCT00992433
View directory record Official record
Conditions
Influenza
Interventions
Inactivated Influenza H1N1 vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
6
States / cities
Iowa City, Iowa • Baltimore, Maryland • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated May 16, 2012 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Not applicable Interventional

School Influenza Vaccine vs Standard of Care With Nested Trial of 2 Parent Notification Intensities

NCT01224301
View directory record Official record
Conditions
Immunizations, Vaccination, Influenza, School Health
Interventions
School based flu vaccine: Low intensity, School based flu vaccine: High intensity
Behavioral
Lead sponsor
Monroe County Department of Public Health
Other
Eligibility
4 Years to 13 Years
Enrollment
25,366 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 4, 2012 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immune Response of Different Pediatric Combination Vaccines.

NCT00255047
View directory record Official record
Conditions
Diphtheria, Polio, Pertussis
Interventions
DAPTACEL®. (DTaP), IPOL®., and ActHIB®., Pentacel®: DTaP-IPV/Hib combined, DTaP-IPV and ActHIB®
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
42 Days to 89 Days
Enrollment
2,167 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
36
States / cities
Tuscaloosa, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 29 more
Source: ClinicalTrials.gov public record
Updated Feb 14, 2014 · Synced Oct 17, 2026, 11:46 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Influenza IMPRINT Cohort: Defining the Impact of Initial Influenza Exposure on Immunity in Infants

NCT05436184
View directory record Official record
Conditions
Influenza
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2028
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Oct 17, 2026, 11:46 PM 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 17, 2026, 11:46 PM 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 17, 2026, 11:46 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Dose-finding Study of Four Dosage Levels of an H7N9 Influenza Vaccine in Adults Between Ages of 18 Years and 65 Years

NCT01928472
View directory record Official record
Conditions
H7N9 Influenza
Interventions
H7N9c low dose with adjuvant, H7N9c medium dose with adjuvant, H7N9c high dose with adjuvant, H7N9c high dose without adjuvant
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
18 Years to 64 Years
Enrollment
402 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
6
States / cities
San Diego, California • Melbourne, Florida • Peoria, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2019 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate a Modified RNA Vaccine Against Influenza in Adults 18 Years of Age or Older

NCT05540522
View directory record Official record
Conditions
Influenza, Human
Interventions
Quadrivalent influenza modRNA vaccine, Quadrivalent influenza vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
45,789 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
263
States / cities
Athens, Alabama • Birmingham, Alabama • Dothan, Alabama + 192 more
Source: ClinicalTrials.gov public record
Updated May 8, 2025 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Phase 4 Interventional Results available

ED Influenza Therapeutic Pilot Study: Oseltamivir vs. Peramivir

NCT02609399
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir, Peramivir
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
2
States / cities
Phoenix, Arizona • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 4, 2019 · Synced Oct 17, 2026, 11:46 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Immune Response to Influenza Vaccine in HIV-Infected Individuals

NCT00069914
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Responses to Live Attenuated Influenza Virus (LAIV) in Chronic Obstructive Pulmonary Disease (COPD)

NCT04901455
View directory record Official record
Conditions
COPD
Interventions
LAIV
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
40 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Evaluate the Safety and Immunogenicity of a Seasonal Influenza VLP Vaccine (Recombinant) in Healthy Adults

NCT00754455
View directory record Official record
Conditions
Influenza
Interventions
Influenza VLP Vaccine (recombinant), Placebo
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 49 Years
Enrollment
317 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
4
States / cities
Pembroke Pines, Florida • Kansas City, Missouri • Warwick, Rhode Island + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2013 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Safety, Tolerability and Immunogenicity of a Plant-made Seasonal Quadrivalent VLP Influenza Vaccine in Adults

NCT01991587
View directory record Official record
Conditions
Virus Diseases, RNA Virus Infections, Respiratory Tract Diseases, Respiratory Tract Infections
Interventions
Low dose of quadrivalent VLP vaccine, Medium dose of quadrivalent VLP vaccine, High dose of quadrivalent VLP vaccine, Placebo
Biological
Lead sponsor
Medicago
Industry
Eligibility
18 Years to 49 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 11, 2020 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Comparison of Three Licensed Influenza Vaccines

NCT03068949
View directory record Official record
Conditions
Influenza
Interventions
FluBlok, Fluzone, FluCelVax, Fluzone HD
Biological
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 49 Years
Enrollment
413 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2021
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Nov 30, 2021 · Synced Oct 17, 2026, 11:46 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Safety & Pharmacokinetics Study of Inhaled Laninamivir Octanoate TwinCaps® Dry Powder Inhaler in Children With Influenza

NCT02014649
View directory record Official record
Conditions
Influenza
Interventions
20 mg laninamivir octanoate, Placebo, 40 mg laninamivir octanoate
Drug
Lead sponsor
Biota Scientific Management Pty Ltd
Industry
Eligibility
5 Years to 17 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
28
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Bellflower, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Oct 17, 2026, 11:46 PM 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 17, 2026, 11:46 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of 9-valent Extraintestinal Pathogenic Escherichia Coli Vaccine (ExPEC9V) and High-dose Quadrivalent Influenza Vaccine, With and Without Co-administration, in Adults Aged 65 Years or Older

NCT06134804
View directory record Official record
Conditions
Invasive Extraintestinal Pathogenic Escherichia Coli Disease (IED) Prevention
Interventions
ExPEC9V, Placebo, HD quadrivalent influenza vaccine
Biological
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
65 Years and older
Enrollment
959 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
24
States / cities
Huntsville, Alabama • Mobile, Alabama • San Diego, California + 19 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2026 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Self-Administered Nasal Influenza Feasibility Study

NCT01933048
View directory record Official record
Conditions
Influenza
Interventions
FluMist
Drug
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years to 49 Years
Enrollment
1,077 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
2
States / cities
San Diego, California • Fort Sam Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 15, 2023 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Not applicable Interventional

Respiratory Disease Management

NCT01543217
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
RT management, Ususal care
Other
Lead sponsor
Barnes-Jewish Hospital
Other
Eligibility
18 Years to 64 Years
Enrollment
428 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 23, 2021 · Synced Oct 17, 2026, 11:46 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Young Adult Influenza Vaccine Immunogenicity Substudy

NCT00170508
View directory record Official record
Conditions
Influenza
Interventions
Fluzone®
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 23, 2013 · Synced Oct 17, 2026, 11:46 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Influenza Vaccine in Preventing Flu in Patients Who Have Undergone Stem Cell Transplant and in Healthy Volunteers

NCT00952185
View directory record Official record
Conditions
Brain and Central Nervous System Tumors, Chronic Myeloproliferative Disorders, Leukemia, Lymphoma, Lymphoproliferative Disorder, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms, Nonmalignant Neoplasm, Viral Infection
Interventions
cytology specimen collection procedure, fluorescent antibody technique, assessment of therapy complications
Other · Procedure
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jun 8, 2015 · Synced Oct 17, 2026, 11:46 PM EDT
Completed No phase listed Observational Results available

Evaluation of Moderate to Severe Influenza Outcomes in Children

NCT02979626
View directory record Official record
Conditions
Influenza, Otitis Media, Lower Resp Tract Infection, Encephalitic Infection, Myositis Viral, Fever
Interventions
Respiratory nasal swab
Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
6 Months to 8 Years
Enrollment
1,478 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Aurora, Colorado • Broomfield, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 4, 2021 · Synced Oct 17, 2026, 11:46 PM EDT