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Showing 1–24 of 1,576 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Immunogenicity, Vaccine Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase I Study of the Safety and Immunogenicity of rgp120/HIV-1IIIB Vaccine in Healthy Adult Subjects (NOTE: Study Extended ONLY for Subjects Who Have Previously Received rgp120/HIV-1IIIB or rgp120/HIV-1MN on VEU 006 or VEU 006 Rollover Study)

NCT00001020
View directory record Official record
Conditions
HIV Infections
Interventions
rgp120/HIV-1IIIB, rgp120/HIV-1MN
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 1995
U.S. locations
3
States / cities
St Louis, Missouri • Philadelphia, Pennsylvania • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 17, 2012 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 2 Interventional

Evaluation of the Immunogenicity of Vaccination With Multiple Synthetic Melanoma Peptides With Granulocyte-macrophage Colony-stimulating Factor (GM-CSF)-In-Adjuvant, in Patients With Advanced Melanoma

NCT00938223
View directory record Official record
Conditions
Melanoma
Interventions
4-peptide and 12-peptide melanoma vaccines
Biological
Lead sponsor
Craig L Slingluff, Jr
Other
Eligibility
18 Years to 85 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 1, 2018 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

The Long-term Antibody Persistence of GSK Biologicals' Meningococcal Vaccine GSK134612 in Healthy Adolescents/Adults

NCT00715910
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
Nimenrix, Blood sampling
Biological · Procedure
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
15 Years to 30 Years
Enrollment
818 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
10
States / cities
Daly City, California • Fairfield, California • Redwood City, California + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 26, 2014 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 1 Interventional

Phase 1a Study to Evaluate Immunogenicity of ASV®

NCT03673020
View directory record Official record
Conditions
Solid Tumor, Adult
Interventions
ASV® AGEN2017 + QS-21 Stimulon® adjuvant
Biological
Lead sponsor
Agenus Inc.
Industry
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 1, 2021 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Reactogenicity, and Immunogenicity of Cytomegalovirus Vaccines mRNA-1647 and mRNA-1443 in Healthy Adults

NCT03382405
View directory record Official record
Conditions
Cytomegalovirus Infection
Interventions
mRNA-1647, mRNA-1443, Placebo
Biological · Other
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 49 Years
Enrollment
181 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
4
States / cities
Hollywood, Florida • Meridian, Idaho • Peoria, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Trial to Evaluate the Safety, Reactogenicity, and Immunogenicity of MVA-BN Yellow Fever Vaccine With and Without Montanide ISA-720 Adjuvant in 18-45 Year Old Healthy Volunteers

NCT02743455
View directory record Official record
Conditions
Yellow Fever, Yellow Fever Immunisation
Interventions
ISA-720, MVA Smallpox Vaccine, MVA-BN Yellow Fever Vaccine, Placebo, YF Vax 17D Strain
Drug · Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
2
States / cities
Iowa City, Iowa • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Sep 24, 2026, 12:49 PM EDT
Terminated Phase 2 Interventional Results available

Folate Receptor Alpha Peptide Vaccine With GM-CSF Versus GM-CSF Alone in Patients With Platinum Sensitive Ovarian Cancer

NCT02978222
View directory record Official record
Conditions
Platinum Sensitive Ovarian Cancer, Ovarian Cancer
Interventions
FRα peptide plus Adjuvant (GM-CSF), Adjuvant (GM-CSF) Alone
Biological · Drug
Lead sponsor
Marker Therapeutics, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
18
States / cities
Birmingham, Alabama • Phoenix, Arizona • Newport Beach, California + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 14, 2022 · Synced Sep 24, 2026, 12:49 PM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Comparative Immunogenicity of Respiratory Virus Vaccines (CIRV2) Study

NCT07287137
View directory record Official record
Conditions
COVID -19, COVID - 19, COVID 19, Influenza, Respiratory Virus, Respiratory Viruses, Respiratory Virus Infection, Respiratory Virus Infections
Interventions
Pfizer-BioNTech mRNA COVID-19 vaccine, Novavax recombinant protein vaccine
Drug
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years to 79 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety, Tolerability, and Immunogenicity Study of Investigational Recombinant Botulinum Vaccine A/B (rBV A/B) in Volunteers Previously Immunized With Investigational Pentavalent Botulinum Toxoid

NCT01701999
View directory record Official record
Conditions
Botulism
Interventions
rBV A/B
Biological
Lead sponsor
California Department of Public Health
Other
Eligibility
18 Years to 69 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
2
States / cities
Richmond, California • West Jefferson, Ohio
Source: ClinicalTrials.gov public record
Updated May 15, 2017 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Monovalent Pandemic H5N1 Vaccine in Adults

NCT01416571
View directory record Official record
Conditions
Influenza
Interventions
Influenza A (H5N1) Virus Monovalent Vaccine, Adjuvanted
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Mesa, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 20, 2018 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 1 Interventional

A Study of the Safety and Effectiveness of an HIV Vaccine for HIV-Positive Patients Receiving Anti-HIV Drugs for at Least 2 Years

NCT00006509
View directory record Official record
Conditions
HIV Infections
Interventions
ALVAC(2)120(B,MN)GNP (vCP1452), gp160 MN/LAI-2
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2007
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 8, 2015 · Synced Sep 24, 2026, 12:49 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Venezuelan Equine Encephalitis Monovalent Virus-Like Particle Vaccine

NCT03776994
View directory record Official record
Conditions
Encephalitis, Encephalitis, Viral, Infectious Encephalitis, Virus Diseases, Encephalomyelitis, Venezuelan Equine, Brain Diseases, Central Nervous System Diseases, Central Nervous System Viral Diseases, Alphavirus Infections, Togaviridae Infections, RNA Virus Infections, Central Nervous System Infections, Encephalomyelitis, Physiological Effects of Drugs, Vaccines, Encephalomyelitis, Equine, Nervous System Diseases
Interventions
Vaccinations on Day 0, Day 28, and Day 140
Biological
Lead sponsor
SRI International
Industry
Eligibility
18 Years to 50 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Plymouth, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 22, 2021 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of H1N1 Vaccine With Trivalent Inactivated Seasonal Influenza Vaccine in Adults

NCT00985673
View directory record Official record
Conditions
Influenza
Interventions
GSK2340274A, GSK2340273A, Seasonal trivalent influenza vaccine (TIV), Saline placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
19 Years to 40 Years
Enrollment
611 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
4
States / cities
Stockbridge, Georgia • Raleigh, North Carolina • Austin, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2018 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Effect of Adjuvant & Route of Administration on Safety & Immunogenicity of NDV-3 Vaccine

NCT01447407
View directory record Official record
Conditions
Staphylococcal Infections, Yeast Infections, Candidiasis
Interventions
NDV-3 vaccine with alum IM, NDV-3 vaccine without alum IM, Placebo with alum IM, NDV-3 vaccine without alum ID
Biological
Lead sponsor
NovaDigm Therapeutics, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
164 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Mar 3, 2020 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Placebo- Controlled Study to Evaluate the Safety and Immunogenicity of the RSV-F Vaccine in Elderly Adults

NCT02266628
View directory record Official record
Conditions
Respiratory Syncytial Virus (RSV)
Interventions
RSV-F Vaccine, Saline Placebo
Biological
Lead sponsor
Novavax
Industry
Eligibility
60 Years and older
Enrollment
1,599 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
10
States / cities
Redding, California • Stockbridge, Georgia • Lenexa, Kansas + 7 more
Source: ClinicalTrials.gov public record
Updated May 26, 2022 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Assess the Immunogenicity and Safety of an Investigational Influenza Vaccine in Children

NCT00980005
View directory record Official record
Conditions
Influenza
Interventions
GSK investigational vaccine GSK1557482A, Fluzone®
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
3 Years to 17 Years
Enrollment
2,116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
28
States / cities
Birmingham, Alabama • Benton, Arkansas • Huntington Beach, California + 25 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2018 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study on the Safety and Immunogenicity of Hexavalent Influenza mRNA Vaccine in Adult Participants 50 Years of Age and Older

NCT06744205
View directory record Official record
Conditions
Influenza, Healthy Volunteers
Interventions
Trivalent (TIV) messenger ribonucleic acid (mRNA) hemagglutinin (HA) Vaccine 1, TIV mRNA-neuraminidase (NA), TIV mRNA-HA Vaccine 2, Quadrivalent Influenza Standard Dose Vaccine, Quadrivalent Influenza Vaccine High Dose
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
50 Years and older
Enrollment
1,162 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
21
States / cities
Birmingham, Alabama • Mobile, Alabama • Tempe, Arizona + 18 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Influenza Vaccine Revaccination in Ambulatory Elderly Subjects

NCT00775450
View directory record Official record
Conditions
Influenza, Orthomyxovirus Infection, Myxovirus Infection
Interventions
Influenza Virus Vaccine USP Trivalent Types A and B
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
65 Years and older
Enrollment
807 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
28
States / cities
Hoover, Alabama • Mobile, Alabama • Chandler, Arizona + 24 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2013 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety, Tolerability, and Immunogenicity of a Clostridium Difficile Toxoid Vaccine in Healthy Elderly Volunteers

NCT00214461
View directory record Official record
Conditions
Clostridium Infections
Interventions
Vaccine diluent buffer (Placebo), C. difficile toxoid vaccine (2 µg), C. difficile toxoid vaccine (10 µg), C. difficile toxoid vaccine (50 µg)
Biological
Lead sponsor
Sanofi
Industry
Eligibility
65 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
2
States / cities
Orlando, Florida • Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 10, 2012 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Clinical Trial of CSL's 2009 H1N1 Influenza Vaccine (CSL425) in Healthy Adults in the USA

NCT00958126
View directory record Official record
Conditions
Influenza
Interventions
CSL425, Placebo
Biological
Lead sponsor
Seqirus
Industry
Eligibility
18 Years and older
Enrollment
1,313 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
11
States / cities
Huntsville, Alabama • San Diego, California • Melbourne, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 20, 2017 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Study of Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed in Healthy Subjects

NCT02587520
View directory record Official record
Conditions
Tetanus, Diphtheria, Pertussis, Whooping Cough
Interventions
Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed Formulation 1, Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed, Formulation 2, Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed, Formulation 3, Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed, Formulation 4, Licensed Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed, Licensed Tetanus Toxoid, Reduced Diphtheria Toxoid and Acellular Pertussis Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
10 Years and older
Enrollment
1,363 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
20
States / cities
Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 16 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2022 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity & Safety of GSK's Avian Flu Vaccine 1557484A Given to Adults Aged 18-64 Years

NCT00771615
View directory record Official record
Conditions
Influenza
Interventions
GSK A/turkey H5N1 Influenza vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
469 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
7
States / cities
Huntsville, Alabama • Anaheim, California • Miami, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2018 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Evaluation of the Safety and Immunogenicity of the Influenza Vaccine GSK2186877A in the Elderly

NCT00772889
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine GSK2186877A, GSK Biologicals' Fluarix™
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
19 Years and older
Enrollment
971 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
9
States / cities
Clearwater, Florida • Coral Gables, Florida • Milford, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2018 · Synced Sep 24, 2026, 12:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immune Response to Two Doses of rDEN2/4delta30 Dengue Vaccine

NCT00920517
View directory record Official record
Conditions
Dengue Fever
Interventions
rDEN2/4delta30(ME) vaccine, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 2, 2013 · Synced Sep 24, 2026, 12:49 PM EDT