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ClinicalTrials.gov public records Last synced Oct 29, 2026, 5:41 PM EDT

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Showing 1–24 of 882 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Viral Vaccines Clear all
Not listed No phase listed Observational

The Burden of Lyme Disease (BOLD) in a Pandemic - Insights From an Online Cross-sectional and Prospective Cohort Survey

NCT05312619
View directory record Official record
Conditions
COVID-19, Lyme Disease, COVID-19 Vaccine
Interventions
Cross sectional survey
Other
Lead sponsor
Dr. Daniel Cameron & Associates
Other
Eligibility
12 Years and older
Enrollment
2,000 participants
Timeline
2021 – 2023
U.S. locations
1
States / cities
Mount Kisco, New York
Source: ClinicalTrials.gov public record
Updated Apr 5, 2022 · Synced Oct 29, 2026, 5:41 PM EDT
Completed No phase listed Observational Results available

COVID-19 Vaccine Response in Sickle Cell Disease

NCT05139992
View directory record Official record
Conditions
Sickle Cell Disease, COVID-19
Interventions
COVID-19 Vaccine
Biological
Lead sponsor
ASH Research Collaborative
Other
Eligibility
Not listed
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
8
States / cities
Oakland, California • Washington D.C., District of Columbia • Baltimore, Maryland + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 14, 2025 · Synced Oct 29, 2026, 5:41 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Long-term Safety Follow-up of Participants Exposed to the Candidate Ebola Vaccines Ad26.ZEBOV and/or MVA-BN-Filo

NCT02661464
View directory record Official record
Conditions
Hemorrhagic Fever, Ebola
Interventions
Ad26.ZEBOV, MVA-BN-Filo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
0 Years to 71 Years
Enrollment
677 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 2, 2024 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Evaluate the Safety, Tolerability, and Immunogenicity of an RNA Vaccine Candidate Against COVID-19 in Healthy Children

NCT04816643
View directory record Official record
Conditions
SARS-CoV-2 Infection, COVID-19
Interventions
Biological/Vaccine: BNT162b2 10mcg, BNT162b2 20mcg, BNT162b2 30mcg, Placebo, Biological/Vaccine: BNT162b2 3mcg
Biological · Other
Lead sponsor
BioNTech SE
Industry
Eligibility
6 Months to 15 Years
Enrollment
11,837 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
90
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 67 more
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Oct 29, 2026, 5:41 PM EDT
Terminated Phase 3 Interventional Results available

Janssen Ad26.CoV2.S Vaccine Booster in Kidney Transplant Recipients

NCT05220397
View directory record Official record
Conditions
Kidney Transplant Recipient
Interventions
Janssen Ad26.CoV2.S Vaccine, Reduction in Immunosuppression Medication, Maintenance in Immunosuppression Medication
Biological · Other
Lead sponsor
Mark Stegall
Other
Eligibility
18 Years and older
Enrollment
468 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
3
States / cities
Phoenix, Arizona • Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Oct 29, 2026, 5:41 PM EDT
Not listed Phase 2 Interventional

REMUNE HIV/AIDS Vaccine Phase II Pediatric Safety & Efficacy Clinical Study

NCT02291809
View directory record Official record
Conditions
HIV/AIDS
Interventions
REMUNE
Biological
Lead sponsor
Immune Response BioPharma, Inc.
Industry
Eligibility
3 Months to 16 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 23, 2016 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 1Phase 2 Interventional

Safety of and Immune Response to a DNA HIV Vaccine (VRC-HIVDNA009-00-VP) in HIV Infected Individuals With Acute HIV Infection

NCT00125099
View directory record Official record
Conditions
HIV Infections
Interventions
VRC-HIVDNA009-00-VP
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2007
U.S. locations
5
States / cities
San Diego, California • Boston, Massachusetts • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 29, 2026, 5:41 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Volunteer Screening for Vaccine and Antivirals Clinical Trials

NCT01593709
View directory record Official record
Conditions
Normal Physiology
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
359 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 2, 2021 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Aging on Primary and Secondary Vaccine Responses

NCT03312699
View directory record Official record
Conditions
Influenza, Hepatitis A, Typhoid, Healthy Adults
Interventions
Fluzone® quadrivalent, Fluzone High Dose, Fluad, Vaqta, Typhim Vi, Vivotif
Biological
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Ad26.COV2.S in Adults (COVID-19)

NCT04436276
View directory record Official record
Conditions
Covid-19 Prevention
Interventions
Ad26.COV2.S, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years and older
Enrollment
1,085 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
7
States / cities
San Diego, California • Melbourne, Florida • Peoria, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 2 Interventional Results available

Study Comparing High-Dose Flu Vaccine to Standard Vaccine in Cancer Patients Less Than 65 Receiving Chemotherapy

NCT01666782
View directory record Official record
Conditions
Cancer, Influenza Viral Infections
Interventions
Standard Trivalent Influenza Vaccine, High-Dose Influenza Vaccine
Biological
Lead sponsor
Saad Jamshed MD
Other
Eligibility
18 Years to 64 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jun 24, 2016 · Synced Oct 29, 2026, 5:41 PM EDT
Not listed Phase 1 Interventional

A Phase 1 Safety and Immunogenicity Study of the Epitope Based DNA Vaccine (EP HIV-1090) in HIV-1 Infected Individuals Receiving Antiretroviral Therapy (ART)

NCT00532974
View directory record Official record
Conditions
HIV Infections
Interventions
EP1090
Biological
Lead sponsor
Epimmune
Industry
Eligibility
18 Years to 60 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
2
States / cities
West Hollywood, California • Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 24, 2007 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune System Response to an HIV Vaccine (EP HIV-1090) in HIV Uninfected Adults

NCT00054860
View directory record Official record
Conditions
HIV Infections
Interventions
EP HIV-1090
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 40 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2005
U.S. locations
4
States / cities
Boston, Massachusetts • St Louis, Missouri • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 14, 2021 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 1Phase 2 Interventional Results available

HIV-1-Gag Conserved-Element DNA Vaccine (p24CE) Vaccine Study

NCT03560258
View directory record Official record
Conditions
HIV Infections
Interventions
p24CE1/2 pDNA vaccine, p24CE1/2 pDNA vaccine admixed with full-length p55^gag pDNA vaccine, Full-length p55^gag pDNA vaccine, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
14
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 2 Interventional

A Long-Term Extension Study to Evaluate the Immunogenicity and Safety of Cytomegalovirus (CMV) mRNA-1647 Vaccine

NCT04975893
View directory record Official record
Conditions
Cytomegalovirus Infection
Interventions
mRNA-1647, mRNA-1647
Biological · Other
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 40 Years
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
7
States / cities
Peoria, Illinois • Lenexa, Kansas • Lexington, Kentucky + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Human Papilloma Viruses (HPV) Vaccine Adherence Community Clinic Study

NCT01908517
View directory record Official record
Conditions
Patient Compliance
Interventions
HPV Vaccine Electronic Reminders
Behavioral
Lead sponsor
East Carolina University
Other
Eligibility
9 Years to 17 Years
Enrollment
522 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
2
States / cities
Greenville, North Carolina • Snow Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 25, 2016 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Tolerability Study to Evaluate MEDI-534 in Children 6 to < 24 Months of Age

NCT00493285
View directory record Official record
Conditions
Respiratory Viral Infections, Respiratory Syncytial Virus Infections, Parainfluenza Virus 3, Human
Interventions
MEDI-534
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
6 Months to 23 Months
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
30
States / cities
Conway, Arkansas • Little Rock, Arkansas • Aurora, Colorado + 25 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2012 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase I Safety and Immunogenicity Trial of Live Recombinant Canarypox ALVAC-HIV (vCP205) and HIV-1 SF-2 rgp120 in HIV-1 Uninfected Volunteers to Evaluate Accelerated Vaccine Schedules

NCT00001076
View directory record Official record
Conditions
HIV Infections
Interventions
ALVAC-HIV MN120TMG (vCP205), ALVAC-RG Rabies Glycoprotein (vCP65), rgp120/HIV-1 SF-2
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 1997
U.S. locations
3
States / cities
Birmingham, Alabama • St Louis, Missouri • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Oct 29, 2026, 5:41 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Post-marketing Safety Study of Autoimmune Diseases Following Cervarix® Vaccination

NCT01153906
View directory record Official record
Conditions
Infections, Papillomavirus
Interventions
Data collection
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
9 Years to 25 Years · Female only
Enrollment
1,516 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Not applicable Interventional

A Study to Test If Giving Remune (an HIV Vaccine) Can Improve the Immune Systems of HIV-Positive Patients Who Are Also Participating in ACTG 328

NCT00000943
View directory record Official record
Conditions
HIV Infections
Interventions
Tetanus Toxoid Vaccine, Hepatitis A Vaccine (Inactivated), HIV-1 Immunogen, Hepatitis B Vaccine (Recombinant)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2005
U.S. locations
2
States / cities
Iowa City, Iowa • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 29, 2021 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Not applicable Interventional

A Study of Thalidomide in HIV-Infected Patients Who Are Receiving HAART

NCT00002392
View directory record Official record
Conditions
HIV Infections
Interventions
Thalidomide
Drug
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Safety, Reactogenicity, and Immunogenicity Study of mRNA-1045 (Influenza and Respiratory Syncytial Virus [RSV]) or mRNA-1230 (Influenza, RSV, and Severe Acute Respiratory Syndrome Coronavirus 2 [SARS-CoV-2]) Vaccine in Adults 50 to 75 Years Old

NCT05585632
View directory record Official record
Conditions
SARS-CoV-2, Influenza, RSV
Interventions
mRNA-1010, mRNA-1345, mRNA-1273.214, mRNA-1045, mRNA-1230
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
50 Years to 75 Years
Enrollment
392 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
14
States / cities
DeLand, Florida • Hollywood, Florida • St. Petersburg, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2024 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 4 Interventional Results available

Comparison of Three Hepatitis B Vaccination Regimens in HIV-Positive Youth

NCT00106964
View directory record Official record
Conditions
HIV Infection, Hepatitis B
Interventions
Engerix-B 20 mcg, Engerix-B 40 mcg, Twinrix 720 EIA HAV Ag plus 20 mcg HBsAg
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
12 Years to 24 Years
Enrollment
371 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
4
States / cities
Los Angeles, California • San Francisco, California • Washington D.C., District of Columbia + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2017 · Synced Oct 29, 2026, 5:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

PHASE 1 SARS-COV-2-Spike-Ferritin-Nanoparticle (SpFN) Vaccine With ALFQ Adjuvant for Prevention of COVID-19

NCT04784767
View directory record Official record
Conditions
SARS-CoV-2 Infection
Interventions
25 µg SpFN_1B-06-PL + ALFQ (QS21 Adjuvant), Sodium chloride, USP, for injection (0.9% NaCl), 50 µg SpFN_1B-06-PL + ALFQ (QS21 Adjuvant)
Biological · Drug
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 55 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 17, 2025 · Synced Oct 29, 2026, 5:41 PM EDT