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ClinicalTrials.gov public records Last synced Sep 30, 2026, 10:40 AM EDT

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Showing 1–24 of 222 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Biological/Vaccine: Placebo Clear all
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

A Study to Evaluate the Efficacy and Safety of mRNA-1283 and mRNA-1273 in Participants 50 to 64 Years of Age Without High-Risk Conditions for Severe Coronavirus Disease 2019 (COVID-19)

NCT07266558
View directory record Official record
Conditions
SARS-CoV-2
Interventions
mRNA-1273, mRNA-1283, Placebo
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
50 Years to 64 Years
Enrollment
30,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
150
States / cities
Birmingham, Alabama • Cullman, Alabama • Mobile, Alabama + 127 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 3 Interventional Results available

Sargramostim, Vaccine Therapy, or Sargramostim and Vaccine Therapy in Preventing Disease Recurrence in Patients With Melanoma That Has Been Removed By Surgery

NCT01989572
View directory record Official record
Conditions
Iris Melanoma, Medium/Large Size Posterior Uveal Melanoma, Mucosal Melanoma, Ocular Melanoma With Extraocular Extension, Recurrent Melanoma, Recurrent Uveal Melanoma, Small Size Posterior Uveal Melanoma, Stage IIA Cutaneous Melanoma AJCC v6 and v7, Stage IIA Uveal Melanoma AJCC v7, Stage IIB Cutaneous Melanoma AJCC v6 and v7, Stage IIB Uveal Melanoma AJCC v7, Stage IIC Cutaneous Melanoma AJCC v6 and v7, Stage IIIA Cutaneous Melanoma AJCC v7, Stage IIIA Uveal Melanoma AJCC v7, Stage IIIB Cutaneous Melanoma AJCC v7, Stage IIIB Uveal Melanoma AJCC v7, Stage IIIC Cutaneous Melanoma AJCC v7, Stage IIIC Uveal Melanoma AJCC v7, Stage IV Cutaneous Melanoma AJCC v6 and v7, Stage IV Uveal Melanoma AJCC v7
Interventions
Laboratory Biomarker Analysis, Placebo, Sargramostim, Tyrosinase Peptide
Other · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
815 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2013
U.S. locations
148
States / cities
Birmingham, Alabama • Mobile, Alabama • Scottsdale, Arizona + 117 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Menactra® in US Adolescents When Administered Concomitantly With Tdap Vaccine

NCT00777257
View directory record Official record
Conditions
Meningitis, Meningococcemia, Pertussis, Tetanus, Diphtheria
Interventions
T dap + Meningococcal Polysaccharide Diphtheria Toxoid Conj., Tdap + Meningococcal Polysaccharide Diphtheria Toxoid Conj., Meningococcal Polysaccharide Diphtheria Toxoid Conj. + T dap
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
11 Years to 17 Years
Enrollment
1,345 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
20
States / cities
Jonesboro, Arkansas • Little Rock, Arkansas • Boulder, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Feb 14, 2014 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immunogenicity of PENNVAX®-GP DNA Vaccine and IL-12 Plasmid, Delivered Via Intradermal or Intramuscular Electroporation in Healthy, HIV-Uninfected Adults

NCT02431767
View directory record Official record
Conditions
HIV Infections
Interventions
PENNVAX®-GP HIV-1 DNA vaccine, Interleukin-12 (IL-12) DNA adjuvant, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
4
States / cities
Decatur, Georgia • Rochester, New York • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2021 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Immunogenicity and Safety of Pandemic Influenza Vaccines in Adults Aged 18 - 49 Years Old

NCT01236040
View directory record Official record
Conditions
Influenza
Interventions
GSK Biologicals' investigational vaccine GSK2590066A, GSK Biologicals' investigational vaccine GSK2592984A, GSK Biologicals' investigational vaccine GSK2340274A, GSK Biologicals' investigational vaccine GSK2340273A, Placebo
Biological · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 49 Years
Enrollment
521 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
4
States / cities
Anaheim, California • Stockbridge, Georgia • Lenexa, Kansas + 1 more
Source: ClinicalTrials.gov public record
Updated May 10, 2017 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Follow-up Study to Evaluate the Safety and Immunogenicity of a HPV Vaccine (580299) in North America

NCT00546078
View directory record Official record
Conditions
Infections, Papillomavirus
Interventions
Cervarix™
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
15 Years to 25 Years · Female only
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
13
States / cities
San Francisco, California • Augusta, Georgia • Bardstown, Kentucky + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2018 · Synced Sep 30, 2026, 10:40 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers

Co-administration Study of an Investigational Live-Attenuated Respiratory Syncytial Virus Vaccine in Infants and Toddlers

NCT06397768
View directory record Official record
Conditions
RSV Immunization
Interventions
RSVt vaccine, Diphtheria, tetanus, pertussis, poliomyelitis , Haemophilus influenzae type b, and hepatitis B vaccine, Diphtheria, tetanus, pertussis, Haemophilus influenzae type b and poliomyelitis vaccine, Hepatitis B vaccine, Streptococcus pneumoniae vaccine, Rotavirus vaccine, Measles, mumps, and rubella vaccine, Varicella virus vaccine, Placebo
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 12 Months
Enrollment
2,226 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
66
States / cities
Birmingham, Alabama • Grand Bay, Alabama • Mobile, Alabama + 55 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety Study of Different Formulations of GlaxoSmithKline (GSK) Biologicals H7N1 Influenza Vaccine Administered to Adults 65 Years of Age and Older

NCT01949090
View directory record Official record
Conditions
Influenza
Interventions
Investigational H7N1 vaccine GSK2789869A, Placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
65 Years and older
Enrollment
363 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
5
States / cities
Hollywood, Florida • Meridian, Idaho • Lenexa, Kansas + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2017 · Synced Sep 30, 2026, 10:40 AM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Phase II Clinical Trial: Multi-dosing the BCG Vaccine for Fibromyalgia

NCT03582085
View directory record Official record
Conditions
Fibromyalgia
Interventions
Bacillus Calmette Guerin Vaccine, Saline Injection
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Charlestown, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 21, 2024 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 1 Interventional

Safety of and Immune Response to an Investigational HIV-1 Vaccine With or Without Interleukin-12 (IL-12) in HIV-1 Infected Adults

NCT01266616
View directory record Official record
Conditions
HIV Infections
Interventions
Profectus HIV MAG pDNA vaccine, IL-12, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
13
States / cities
Los Angeles, California • Palo Alto, California • San Francisco, California + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

COVID19 SARS Vaccinations: Systemic Allergic Reactions to SARS-CoV-2 Vaccinations

NCT04761822
View directory record Official record
Conditions
SARS-CoV Infection, COVID-19, Allergic Reaction, Mast Cell Disorder
Interventions
Moderna COVID-19 Vaccine, Pfizer-BioNTech COVID-19 Vaccine, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
5 Years and older
Enrollment
746 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
29
States / cities
Tucson, Arizona • Little Rock, Arkansas • Los Angeles, California + 24 more
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Safety, Reactogenicity, and Immunogenicity of mRNA-1283 and mRNA-1273 Vaccines in Healthy Adults Between 18 Years and 55 Years of Age to Prevent COVID-19

NCT04813796
View directory record Official record
Conditions
SARS-CoV-2
Interventions
mRNA-1283, mRNA-1273, Placebo
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
5
States / cities
Chandler, Arizona • San Diego, California • Melbourne, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2023 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 2 Interventional Results available

Safety, Tolerability and Antiviral Activity of Selgantolimod in Virally-Suppressed Participants With Chronic Hepatitis B

NCT03491553
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
Selgantolimod, Placebo, Hepatitis B virus (HBV) OAV Therapy
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 19, 2021 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Safety, Tolerability and Immune Response to LC002, an Experimental Therapeutic Vaccine, in Adults Receiving HAART

NCT00270205
View directory record Official record
Conditions
HIV Infections
Interventions
LC002 standard vaccination, LC002 high-dose vaccination, LC002 placebo vaccination
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
5
States / cities
Sacramento, California • Chicago, Illinois • Cleveland, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety, Reactogenicity, and Effectiveness of mRNA-1273 Vaccine in Adolescents 12 to <18 Years Old to Prevent COVID-19

NCT04649151
View directory record Official record
Conditions
SARS-CoV-2
Interventions
mRNA-1273, Placebo, mRNA-1273.222
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
12 Years to 18 Years
Enrollment
4,328 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
48
States / cities
Banning, California • La Mesa, California • Lake Worth, Florida + 41 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Sep 30, 2026, 10:40 AM EDT
Terminated Phase 2 Interventional Results available

Multi-Epitope TARP Peptide Autologous Dendritic Cell Vaccination in Men With Stage D0 Prostate Cancer

NCT02362451
View directory record Official record
Conditions
Prostatic Neoplasms, Prostate Cancer
Interventions
Autologus elutriated monocyte placebo vaccine, Multi-epitope (ME) T-cell receptor g alternate reading frame protein (TARP) vaccine
Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Male only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 18, 2022 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 1 Interventional

A Double-Blind Placebo-Controlled Trial of the Safety and Immunogenicity of a Seven Valent Pneumococcal Conjugate Vaccine in Presumed HIV-Infected Infants

NCT00000829
View directory record Official record
Conditions
HIV Infections, Pneumococcal Infections
Interventions
Pneumococcal Vaccine, Polyvalent (23-valent), Pneumococcal Conjugate Vaccine, Heptavalent, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Months to 6 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1999
U.S. locations
31
States / cities
Los Angeles, California • Oakland, California • San Diego, California + 21 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Trial to Evaluate Safety and Immunogenicity of an Ebola Zaire Vaccine in Healthy Adults

NCT02718469
View directory record Official record
Conditions
Ebola Virus Disease
Interventions
Ebola Vaccine - low dose, Ebola Vaccine - mid dose, Ebola Vaccine - high dose, Placebo
Biological
Lead sponsor
Auro Vaccines LLC
Industry
Eligibility
18 Years to 60 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Melbourne, Florida
Source: ClinicalTrials.gov public record
Updated Apr 4, 2017 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate Efficacy, Safety, and Immunogenicity of mRNA-1273 Vaccine in Adults Aged 18 Years and Older to Prevent COVID-19

NCT04470427
View directory record Official record
Conditions
SARS-CoV-2
Interventions
mRNA-1273, Placebo
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
30,415 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
100
States / cities
Birmingham, Alabama • Chandler, Arizona • Glendale, Arizona + 79 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2024 · Synced Sep 30, 2026, 10:40 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Phase 2 Dose and Formulation Confirmation of Quad-NIV in Older Adults

NCT03658629
View directory record Official record
Conditions
Influenza, Human
Interventions
NanoFlu (Quad-NIV), Matrix-M Adjuvant, Placebo, Fluzone HD, Flublok Quadrivalent, Influenza Vaccine
Biological · Other
Lead sponsor
Novavax
Industry
Eligibility
65 Years and older
Enrollment
1,375 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
14
States / cities
Hollywood, Florida • Savannah, Georgia • Stockbridge, Georgia + 11 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2022 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Not applicable Interventional Results available

Safe Administration of Flu Vaccine to Egg Allergic Children

NCT01264601
View directory record Official record
Conditions
Egg Allergy
Interventions
Trivalent Influenza Vaccine
Biological
Lead sponsor
University of Michigan
Other
Eligibility
6 Months to 24 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
5
States / cities
San Diego, California • Ann Arbor, Michigan • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2017 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of Ad26.COV2.S and Influenza Vaccines in Healthy Adults

NCT05091307
View directory record Official record
Conditions
COVID-19 Prevention
Interventions
Ad26.COV2.S, Placebo, Influenza Vaccine
Biological · Other
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years and older
Enrollment
861 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
17
States / cities
Tempe, Arizona • San Diego, California • Coral Gables, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 3 Interventional Results available

A Study of an Ad26.RSV.preF-based Vaccine and High-dose Seasonal Influenza Vaccine, With and Without Coadministration, in Adults Aged 65 Years and Older

NCT05071313
View directory record Official record
Conditions
Influenza, Human Prevention, Respiratory Syncytial Viruses Prevention
Interventions
Ad26.RSV.preF-based vaccine, Quadrivalent High-dose Influenza Vaccine, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
65 Years and older
Enrollment
777 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
19
States / cities
Long Beach, California • Hollywood, Florida • Port Orange, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Sep 30, 2026, 10:40 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of the Hepatitis B Vaccine, HEPLISAV™, Compared to Engerix-B® Vaccine

NCT02117934
View directory record Official record
Conditions
Healthy
Interventions
HEPLISAV, Engerix-B
Biological
Lead sponsor
Dynavax Technologies Corporation
Industry
Eligibility
18 Years to 70 Years
Enrollment
8,374 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
40
States / cities
Birmingham, Alabama • Chandler, Arizona • Glendale, Arizona + 31 more
Source: ClinicalTrials.gov public record
Updated Mar 20, 2019 · Synced Sep 30, 2026, 10:40 AM EDT