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ClinicalTrials.gov public records Last synced Oct 14, 2026, 8:31 PM EDT

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Showing 289–312 of 350 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: TIV (Fluzone) Influenza Vaccination Clear all
Completed Not applicable Interventional Results available

Flu2Text: Text Message Reminders for 2nd Dose of Influenza Vaccine

NCT03287830
View directory record Official record
Conditions
Influenza, Vaccination
Interventions
Text message influenza vaccine reminders
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
6 Months to 8 Years
Enrollment
2,105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
3
States / cities
Itasca, Illinois • New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 15, 2023 · Synced Oct 14, 2026, 8:31 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Motivational Interviewing for Vaccine Uptake in Latinx Adults

NCT06062056
View directory record Official record
Conditions
Vaccine Hesitancy
Interventions
EHR alert, Motivational Interviewing, Warm hand off to nurse
Other · Behavioral
Lead sponsor
Boston College
Other
Eligibility
18 Years and older
Enrollment
3,698 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Oct 14, 2026, 8:31 PM 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 29, 2019 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Study to Evaluate the Effectiveness of FluMist Vaccination in a School-Based Intervention Program

NCT00192218
View directory record Official record
Conditions
Influenza
Interventions
FluMist
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
5 Years to 17 Years
Enrollment
3,022 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
2
States / cities
Baltimore, Maryland • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 22, 2008 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Not applicable Interventional

Reducing Delay in Vaccination of Children: Logistic Barriers

NCT03516682
View directory record Official record
Conditions
Communicable Disease
Interventions
Reminders
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
1 Month to 11 Months
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 7, 2019 · Synced Oct 14, 2026, 8:31 PM EDT
Completed No phase listed Observational

Maternal Immunization: Giving Immunity For Tomorrow

NCT01496079
View directory record Official record
Conditions
Pregnancy, Influenza
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 14, 2017 · Synced Oct 14, 2026, 8:31 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Influenza Immunization in Adults Over Age 75

NCT02200276
View directory record Official record
Conditions
Influenza, Immunization, Older Adults, Over Age 75
Interventions
Influenza
Biological
Lead sponsor
Johns Hopkins University
Other
Eligibility
75 Years and older
Enrollment
1,025 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Oct 14, 2026, 8:31 PM EDT
Not listed Phase 2 Interventional

Offering Influenza and Pneumococcal Vaccine to Patients Being Evaluated in the Emergency Department

NCT00380679
View directory record Official record
Conditions
High Risk for Serious Influenza, High Risk for Pneumonia
Interventions
Influenza vaccination, Pneumococcal polysaccharide vaccination
Biological
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
2
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 26, 2006 · Synced Oct 14, 2026, 8:31 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Characterizing the Human Airway Immune Response to FluMist Vaccination

NCT07177417
View directory record Official record
Conditions
Healthy Young Adults, Influenza Vaccines, Influenza Vaccine Response
Interventions
FluMist, inactivated influenza vaccine, bronchoscopy
Biological · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Oct 14, 2026, 8:31 PM 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 14, 2026, 8:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

P3+ Intervention Phase

NCT02898688
View directory record Official record
Conditions
Vaccination
Interventions
Control Site, Intervention Site, Patient-level Control Group, Patient-level Intervention Group
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
2,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
23
States / cities
Aurora, Colorado • Boulder, Colorado • Denver, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2020 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Immune and Hormone Response to Influenza Vaccine

NCT01978262
View directory record Official record
Conditions
Healthy
Interventions
Seasonal Inactivated Influenza Vaccine
Biological
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 39 Years · Female only
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 27, 2018 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Determine the Immunogenicity and Safety Profile of CSL Limited's Influenza Virus Vaccine Compared to a US Licensed Comparator Influenza Virus Vaccine in a Pediatric Population

NCT00959049
View directory record Official record
Conditions
Influenza
Interventions
CSL's Influenza Virus Vaccine (Afluria), Influenza Virus Vaccine (Fluzone)
Biological
Lead sponsor
Seqirus
Industry
Eligibility
6 Months to 17 Years
Enrollment
1,474 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
23
States / cities
Chandler, Arizona • Harrisburg, Arkansas • Jonesboro, Arkansas + 16 more
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Influenza Immunity in Children

NCT02559505
View directory record Official record
Conditions
Influenza
Interventions
Seasonal IIV 0.25 mL dose, Natural influenza infection, Seasonal IIV 0.5 mL dose
Biological · Other
Lead sponsor
University of Rochester
Other
Eligibility
3 Months to 8 Years
Enrollment
134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Sep 2, 2021 · Synced Oct 14, 2026, 8:31 PM EDT
Completed No phase listed Observational

Cellular and Molecular Characterization of the Immune Response in Healthy NIH Employees atBaseline, and After Immunization With the H1N1 or Seasonal Influenza Vaccines

NCT01191853
View directory record Official record
Conditions
Healthy Volunteers, Influenza
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Immune Response to Vaccination in Patients Receiving Single Drug Immunosuppression

NCT01733056
View directory record Official record
Conditions
Immunosuppression
Interventions
Flu Vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years to 89 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 21, 2014 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Intervention Promoting HPV Vaccination in Safety-net Clinics

NCT01729429
View directory record Official record
Conditions
Human Papilloma Virus-Related Cervical Carcinoma
Interventions
HPV brochure, recall, reminders, General Adolescent Vaccine Brochure
Behavioral
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
11 Years to 18 Years · Female only
Enrollment
831 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Phase 2 Interventional Results available

Flu Vaccine Response in Patients on Biologic Therapies

NCT03277703
View directory record Official record
Conditions
Rheumatologic Disorder, Inflammatory Bowel Diseases, Immune Complex Diseases
Interventions
Influenza vaccine
Biological
Lead sponsor
Stony Brook University
Other
Eligibility
3 Years to 22 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
East Setauket, New York
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Not applicable Interventional Results available

Precision Vaccine Promotion in Underserved Populations

NCT05537441
View directory record Official record
Conditions
Influenza, Vaccine Hesitancy
Interventions
Text messaging
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
6 Months and older
Enrollment
228,831 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 14, 2026, 8:31 PM 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 14, 2026, 8:31 PM EDT
Completed Not applicable Interventional Results available

Using Explainable AI Risk Predictions to Nudge Influenza Vaccine Uptake

NCT05009251
View directory record Official record
Conditions
Influenza, Vaccination, Health Promotion, Health Behavior, Risk Reduction
Interventions
Reminder, Risk reduction, Medical records-based recommendation, Algorithm-based recommendation
Behavioral
Lead sponsor
National Bureau of Economic Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
45,061 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 3, 2025 · Synced Oct 14, 2026, 8:31 PM EDT
Recruiting Early Phase 1 Interventional

A Phase 0 Window of Opportunity Trial of Intratumoral Seasonal Influenza Immunization in Cutaneous Squamous Cell Carcinoma (CSCC) Patients Awaiting Curative Excision

NCT06664151
View directory record Official record
Conditions
Skin Cancer, Cutaneous Squamous Cell Carcinoma (CSCC), Cutaneous Squamous Cell Cancer
Interventions
Fluzone Trivalent
Biological
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Comparison of GSKBiologicals' Hib-MenCY-TT Vaccine vs Licensed Hib Conjugate or Meningococcal Vaccine

NCT00129129
View directory record Official record
Conditions
Haemophilus Influenzae Type b, Neisseria Meningitidis
Interventions
GSK Biologicals' Haemophilus influenza type b and Neisseria meningitidis serogroups C and Y-tetanus toxoid conjugate vaccine 792014 vaccine, ActHIB, Pediarix, Prevnar, Menomune
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Weeks to 15 Months
Enrollment
756 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
27
States / cities
Little Rock, Arkansas • Fountain Valley, California • Centennial, Colorado + 19 more
Source: ClinicalTrials.gov public record
Updated Aug 24, 2018 · Synced Oct 14, 2026, 8:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

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

NCT00380237
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
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 21, 2008 · Synced Oct 14, 2026, 8:31 PM EDT