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ClinicalTrials.gov public records Last synced Oct 21, 2026, 3:42 AM EDT

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Showing 241–264 of 1,140 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Flu Clear all
Completed Phase 2 Interventional Results available

High Dose Flu Vaccine in Treating Children Who Have Undergone Donor Stem Cell Transplant

NCT02860039
View directory record Official record
Conditions
Hematopoietic Cell Transplantation Recipient, Malignant Neoplasm, Influenza
Interventions
Trivalent Influenza Vaccine, Quadrivalent Influenza Vaccine, Laboratory Biomarker Analysis
Biological · Other
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
3 Years to 17 Years
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
9
States / cities
San Francisco, California • Kansas City, Missouri • Cincinnati, Ohio + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2024 · Synced Oct 21, 2026, 3:42 AM EDT
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 21, 2008 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Simultaneous mRNA COVID-19 and IIV4 Vaccination Study

NCT05028361
View directory record Official record
Conditions
Quality of Life, Injection Site Reaction, Adverse Drug Event, Systemic Reaction
Interventions
mRNA COVID-19, IIV4, Placebo (saline)
Biological · Other
Lead sponsor
Duke University
Other
Eligibility
5 Years and older
Enrollment
348 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
3
States / cities
Baltimore, Maryland • Durham, North Carolina • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 19, 2024 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Building Engagement Using Financial Incentives Trial - Colorectal Cancer Screening

NCT06124131
View directory record Official record
Conditions
Health Behavior, Colorectal Cancer, Influenza, COVID-19, Vaccine Hesitancy, Vaccine-Preventable Diseases, Healthcare Patient Acceptance
Interventions
Financial incentive for colorectal cancer screening, Financial incentive for flu shot, Financial incentive for COVID-19 shot
Behavioral
Lead sponsor
Tulane University
Other
Eligibility
45 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated May 4, 2025 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy of Transfer Factor to Prevent Upper Respiratory Tract Infections in Healthy Adults

NCT01106183
View directory record Official record
Conditions
Upper Respiratory Tract Infections Due to Influenza or Rhinovirus
Interventions
transfer factor, Placebo
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 40 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 21, 2025 · Synced Oct 21, 2026, 3:42 AM EDT
Active, not recruiting Not applicable Interventional

Kaiser Colorado Flu Nudge

NCT07372950
View directory record Official record
Conditions
Influenza, Vaccination
Interventions
Behavioral economics framed test messaging
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
6 Months and older
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Not applicable Interventional

Text4Vax: Text Message Reminders for Pediatric COVID-19 and Influenza Vaccines 2024-25 Season

NCT06603090
View directory record Official record
Conditions
Influenza, COVID-19, Vaccination Hesitancy
Interventions
Text message influenza vaccine reminders, Text message COVID-19 vaccine reminders, Text message influenza and COVID-19 vaccine reminders
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
6 Months to 17 Years
Enrollment
66,147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
4
States / cities
Itasca, Illinois • New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 11, 2025 · Synced Oct 21, 2026, 3:42 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Apple Respiratory Study

NCT04912180
View directory record Official record
Conditions
Acute Respiratory Infection, Coronavirus Infection, Influenza
Interventions
Not listed
Lead sponsor
Apple Inc.
Industry
Eligibility
22 Years and older
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 14, 2021 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assessment of CR8020, a Monoclonal Antibody Against Influenza A Viruses

NCT01756950
View directory record Official record
Conditions
Influenza
Interventions
2 mg/kg CR8020, 5 mg/kg CR8020, 15 mg/kg CR8020, 30 mg/kg CR8020, 50 mg/kg CR8020, Placebo
Biological
Lead sponsor
Crucell Holland BV
Industry
Eligibility
18 Years to 50 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 19, 2013 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Resistance Exercise to Improve Flu Vaccine for Older Adults

NCT03736759
View directory record Official record
Conditions
Influenza, Human
Interventions
Exercise
Behavioral
Lead sponsor
University of Houston
Other
Eligibility
65 Years and older
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Oct 21, 2026, 3:42 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

A Study of mRNA-1018-H5 Pandemic Influenza Vaccine in Healthy Adults

NCT07496450
View directory record Official record
Conditions
Influenza
Interventions
mRNA-1018-H5, Placebo
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
4,050 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
10
States / cities
San Bernardino, California • Savannah, Georgia • Meridian, Idaho + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Learn About Flu and COVID-19 Vaccine Responses in Healthy People

NCT06683352
View directory record Official record
Conditions
Influenza,Human, COVID-19
Interventions
Investigational Influenza Vaccine, COVID-19 Vaccine, Investigational Influenza/COVID-19 Vaccine, Licensed Influenza Vaccine 1, Licensed Influenza Vaccine 2, Placebo
Biological · Combination Product · Other
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years and older
Enrollment
1,353 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
22
States / cities
Lake Forest, California • San Diego, California • Walnut Creek, California + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Trial of High Dose vs. Standard Dose Influenza Vaccine in Inflammatory Bowel Disease Patients

NCT02461758
View directory record Official record
Conditions
Inflammatory Bowel Disease (IBD)
Interventions
Standard dose Influenza vaccine (SDIV), High dose influenza vaccine (HDIV)
Biological
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 64 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 2, 2019 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influenza Reminder Text-Messaging

NCT06587984
View directory record Official record
Conditions
Influenza
Interventions
Text message reminder
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
6 Months to 18 Years
Enrollment
228,361 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Two Doses of H5N1 Influenza Vaccine in Elderly Subjects

NCT01766921
View directory record Official record
Conditions
Pandemic H5N1 Influenza
Interventions
Adjuvanted H5N1 pandemic influenza vaccine
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
65 Years and older
Enrollment
1,393 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
12
States / cities
Phoenix, Arizona • Hollywood, Florida • Wichita, Kansas + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2019 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Follow-On Study With an H5 Influenza Vaccine for Subjects Who Participated in Study FLU-001

NCT01403155
View directory record Official record
Conditions
Healthy
Interventions
INO-3401 + EP
Biological
Lead sponsor
Inovio Pharmaceuticals
Industry
Eligibility
18 Years to 50 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
2
States / cities
Overland Park, Kansas • Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 13, 2017 · Synced Oct 21, 2026, 3:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of DNA Vaccine With Electroporation for the Prevention of Disease Caused by H1 and H5 Influenza Virus

NCT01405885
View directory record Official record
Conditions
Healthy
Interventions
INO-3605, INO-3609, INO-3401, INO-3605 AND INO-3609, INO-3510, Seasonal Influenza vaccine
Biological
Lead sponsor
Inovio Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
3
States / cities
Miami, Florida • Overland Park, Kansas • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2014 · Synced Oct 21, 2026, 3:42 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 21, 2026, 3:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparison of Flu Vaccine Doses in Children

NCT01164553
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
6 Months to 35 Months
Enrollment
243 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
7
States / cities
Atlanta, Georgia • Iowa City, Iowa • Baltimore, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2013 · Synced Oct 21, 2026, 3:42 AM EDT
Enrolling by invitation Not applicable Interventional

Personalized Ventilator Settings for Patients on ECMO

NCT07673250
View directory record Official record
Conditions
Acute Respiratory Distress Syndrome (ARDS), Extracorporeal Membrane Oxygenation, Respiratory Failure Patients Treated With ECMO, Respiratory Failure, ICU, Ventilator Induced Lung Injury
Interventions
Personalized Positive End-Expiratory Pressure (PEEP)
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 21, 2026, 3:42 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 18, 2008 · Synced Oct 21, 2026, 3:42 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

First-in-Human Study of VNT-101: Safety, Tolerability, and Pharmacokinetics

NCT07169318
View directory record Official record
Conditions
Influenza
Interventions
Placebo for VNT-101, VNT-101
Other · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 59 Years
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Oct 21, 2026, 3:42 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Atypia of Undetermined Significance (AUS) / Follicular Lesion of Undetermined Significance (FLUS)

NCT03224754
View directory record Official record
Conditions
Diagnoses Disease
Interventions
Determination of risk of malignancy of these thyroid lesions
Behavioral
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
Not listed
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated May 11, 2018 · Synced Oct 21, 2026, 3:42 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

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

NCT00964821
View directory record Official record
Conditions
Chronic Myeloproliferative Disorders, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms, Nonmalignant Neoplasm
Interventions
trivalent influenza vaccine, Immunoenzyme technique, Laboratory biomarker analysis
Biological · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years to 120 Years
Enrollment
459 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
2
States / cities
Duarte, California • Pasadena, California
Source: ClinicalTrials.gov public record
Updated Nov 7, 2017 · Synced Oct 21, 2026, 3:42 AM EDT