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ClinicalTrials.gov public records Last synced Oct 21, 2026, 3:58 AM EDT

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Showing 289–312 of 1,351 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Immunization Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Tailoring of Vaccine-Focused Messages: Disease Salience

NCT03002324
View directory record Official record
Conditions
Human Papillomavirus
Interventions
Baseline Survey, Current CDC Message, Cervical Cancer Message, Control Message, Post-Intervention Survey
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
1,320 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 10, 2017 · Synced Oct 21, 2026, 3:58 AM EDT
Completed No phase listed Observational Results available

COVID-19 Vaccination and Breakthrough Infections Among Persons With Immunocompromising Conditions in the United States

NCT05020145
View directory record Official record
Conditions
Immunocompromised, Immunosuppressed, Covid-19, SARS-COV-2, SARS-COV-2 Infection, Breakthrough Infection
Interventions
BNT162b2 (Tozinameran)
Biological
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
1,277,747 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 12, 2024 · Synced Oct 21, 2026, 3:58 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, 3:58 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, 3:58 AM 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 21, 2026, 3:58 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, 3:58 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, 3:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Oral Water Hydration to Prevent Post-Vaccination Presyncope

NCT02353390
View directory record Official record
Conditions
Presyncope, Syncope
Interventions
Oral Water Hydration
Other
Lead sponsor
Duke University
Other
Eligibility
11 Years to 21 Years
Enrollment
1,820 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
2
States / cities
Boston, Massachusetts • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 7, 2016 · Synced Oct 21, 2026, 3:58 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, 3:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Increasing Breast, Cervical, and Colorectal Cancer Screening and HPV Vaccination Among Underserved Texans

NCT04638010
View directory record Official record
Conditions
Cancer Prevention
Interventions
Cancer control navigation (CNN), General referral (usual care)
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
1,554 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 20, 2020 · Synced Oct 21, 2026, 3:58 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Venezuelan Equine Encephalomyelitis Vaccine in Healthy Adults

NCT03051386
View directory record Official record
Conditions
Venezuelan Equine Encephalomyelitis Virus Disease
Interventions
VEE Vaccine
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 65 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Fort Deterick, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 11, 2021 · Synced Oct 21, 2026, 3:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

PREVENT Pilot HPV - Related Cancers Trial

NCT06738355
View directory record Official record
Conditions
HPV Vaccination, Uptake Vaccination, Series Completion
Interventions
PREVENT
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
335 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Oct 21, 2026, 3:58 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, 3:58 AM EDT
Completed Phase 1Phase 2 Interventional

Chemotherapy, Vaccine Therapy, and Stem Cell Transplantation in Patients With Newly Diagnosed Multiple Myeloma

NCT00024466
View directory record Official record
Conditions
Multiple Myeloma
Interventions
GVAX, Autologous transplant
Biological · Procedure
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years to 70 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2009
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 19, 2018 · Synced Oct 21, 2026, 3:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Conectados: Social Networks and Social Media for Vaccine Uptake

NCT07096245
View directory record Official record
Conditions
Vaccination
Interventions
Vaccine Information Video Dissemination
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
507 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 6, 2026 · Synced Oct 21, 2026, 3:58 AM EDT
Terminated Phase 2 Interventional Results available

Autologous SCT Followed by Dendritic Cell p53 Vaccination in Patients With Limited Stage Small Cell Lung Cancer

NCT00776295
View directory record Official record
Conditions
Small Cell Lung Cancer
Interventions
Combined adenovirus vectored p53 tranfected dedritic cell vaccine and ex vivo expanded T-lymphocytes
Biological
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jan 24, 2013 · Synced Oct 21, 2026, 3:58 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, 3:58 AM EDT
Completed Phase 1 Interventional

Active Immunization of HIV-1 Infected, Pregnant Women With CD4 Lymphocyte Counts >= 400/mm3: A Phase I Study of Safety and Immunogenicity of VaxSyn Recombinant gp160 (NOTE: Some Patients Receive Placebo)

NCT00000777
View directory record Official record
Conditions
HIV Infections, Pregnancy, HIV Seronegativity
Interventions
gp160 Vaccine (MicroGeneSys)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
16 Years to 40 Years · Female only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1998
U.S. locations
2
States / cities
New Haven, Connecticut • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Oct 21, 2026, 3:58 AM EDT
Completed Not applicable Interventional

HPV Centralized R/R RCT #2 - New York State

NCT03294551
View directory record Official record
Conditions
Vaccines
Interventions
HPV Vaccine Reminder Recall - Autodialer, HPV Vaccine Reminder Recall - Texting
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
11 Years to 14 Years
Enrollment
37,003 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 27, 2021 · Synced Oct 21, 2026, 3:58 AM EDT
Completed Phase 1 Interventional

Dendritic Cells (White Blood Cells) Vaccination for Advanced Melanoma

NCT00683670
View directory record Official record
Conditions
Melanoma
Interventions
cyclophosphamide, Mature dendritic cell vaccine
Drug · Biological
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 29, 2025 · Synced Oct 21, 2026, 3:58 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The STOP-HPV Trial 2: Performance Feedback Intervention

NCT03599570
View directory record Official record
Conditions
Immunization, Vaccination
Interventions
STOP-HPV performance feedback intervention
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
11 Years to 17 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Itasca, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 30, 2020 · Synced Oct 21, 2026, 3:58 AM EDT
Terminated Phase 3 Interventional Results available

CONvalescent Plasma for Hospitalized Adults With COVID-19 Respiratory Illness (CONCOR-1)

NCT04348656
View directory record Official record
Conditions
COVID-19
Interventions
Convalescent plasma
Biological
Lead sponsor
Hamilton Health Sciences Corporation
Other
Eligibility
16 Years and older
Enrollment
940 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
Brooklyn, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 3, 2022 · Synced Oct 21, 2026, 3:58 AM EDT
Completed Phase 1Phase 2 Interventional

Vaccination in the Peripheral Stem Cell Transplant Setting for Multiple Myeloma

NCT00116441
View directory record Official record
Conditions
Multiple Myeloma
Interventions
Therapeutic Cellular Vaccine, GM-CSF Producing
Biological
Lead sponsor
Cell Genesys
Industry
Eligibility
18 Years to 70 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 24, 2007 · Synced Oct 21, 2026, 3:58 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Vouchers to Promote Tdap Vaccination

NCT01860378
View directory record Official record
Conditions
Whooping Cough
Interventions
Full price, $5 off
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
18 Years and older
Enrollment
149 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 3, 2015 · Synced Oct 21, 2026, 3:58 AM EDT