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Showing 25–48 of 24 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

Safety and Immunogenicity of a Live Attenuated H7N9 Influenza Virus Vaccine in Healthy Adults

NCT01995695
View directory record Official record
Conditions
Influenza A Virus, H7N9 Subtype
Interventions
Live attenuated H7N9 A/Anhui/13 ca influenza virus vaccine, Inactivated subvirion H7N9 influenza vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jul 26, 2016 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Trial to Evaluate the Safety and Immunogenicity of a 20-Valent Pneumococcal Vaccine in Adults 65 Years of Age or Older With Prior Pneumococcal Vaccination

NCT03835975
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
13vPnC, PPSV23, 20vPnC
Biological
Lead sponsor
Pfizer
Industry
Eligibility
65 Years and older
Enrollment
875 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
34
States / cities
Mobile, Alabama • Chandler, Arizona • Peoria, Arizona + 26 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2021 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Traveler's Diarrhea (TD) Automated Process

NCT00751777
View directory record Official record
Conditions
Prevention of Travelers' Diarrhea
Interventions
heat-labile enterotoxin of E. coli (LT), Placebo
Biological
Lead sponsor
Intercell USA, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
3
States / cities
Vallejo, California • South Miami, Florida • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 28, 2020 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Various Formulations of Live Attenuated Tetravalent Dengue Vaccine in Healthy US Adults

NCT00350337
View directory record Official record
Conditions
Dengue
Interventions
Pre-transfection F17, Post-transfection F17, Post-transfection F19, Placebo
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 45 Years
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 11, 2021 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Assessing the Safety, Immunogenicity and Dose Response of VLA15, A New Vaccine Candidate Against Lyme Borreliosis

NCT03010228
View directory record Official record
Conditions
Lyme Borreliosis, Nervous System
Interventions
VLA15 with Alum, VLA15 without Alum
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 39 Years
Enrollment
179 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
4
States / cities
La Mesa, California • Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Jun 10, 2026, 2:10 PM EDT
Active, not recruiting Phase 1 Interventional Results available

Neoantigen-based Personalized DNA Vaccine in Patients With Newly Diagnosed, Unmethylated Glioblastoma

NCT04015700
View directory record Official record
Conditions
Glioblastoma
Interventions
Personalized neoantigen DNA vaccine supplied by Geneos Therapeutics, CELLECTRA®2000 EP Device supplied by Geneos Therapeutics, Plasmid encoded IL-12
Biological · Device · Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety of Kinrix + (Measles Mumps Rubella) MMR Vaccine With and Without Varicella Vaccine in Healthy Children 4-6 Years

NCT00871117
View directory record Official record
Conditions
Tetanus, Acellular Pertussis, Diphtheria
Interventions
GSK Biologicals'Kinrix®, Merck and Company's MMRII, Merck and Company's Varivax
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
4 Years to 6 Years
Enrollment
478 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
11
States / cities
Antioch, California • Daly City, California • Hayward, California + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Clinical Study to Evaluate the Immunogenicity and Safety of an Adjuvanted Quadrivalent Influenza Vaccine Compared With a Licensed Quadrivalent Vaccine in Adults 50 to 64 Years of Age

NCT05044195
View directory record Official record
Conditions
Influenza, Human
Interventions
aQIV, Comparator QIV
Biological
Lead sponsor
Seqirus
Industry
Eligibility
50 Years to 64 Years
Enrollment
2,044 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
12
States / cities
Mobile, Alabama • Tempe, Arizona • Atlantis, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Jun 10, 2026, 2:10 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

GLS-5310 Vaccine in Healthy Volunteers as a Booster for SARS-CoV-2 (COVID-19)

NCT05182567
View directory record Official record
Conditions
COVID-19, Healthy
Interventions
GLS-5310 (Group 1), GLS-5310 (Group 2), GLS-5310 (Group 3), GLS-5310 (Group 4)
Drug
Lead sponsor
GeneOne Life Science, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Rockville, Maryland • Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 12, 2023 · Synced Jun 10, 2026, 2:10 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 Jun 10, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Co-Administration of AS03 Adjuvanted A/H7N9 IIV With IIV4

NCT03318315
View directory record Official record
Conditions
Avian Influenza, Influenza, Influenza Immunisation
Interventions
AS03, Inactivated influenza H7N9 vaccine, Influenza Virus Quadrivalent Inactivated Vaccine, Phosphate Buffered Saline (PBS) diluent
Drug · Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 64 Years
Enrollment
149 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
4
States / cities
Birmingham, Alabama • Baltimore, Maryland • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2020 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Staphylococcus Aureus Toxoids Phase 1-2 Vaccine Trial

NCT01011335
View directory record Official record
Conditions
Staphylococcus Aureus
Interventions
Monovalent rAT, Monovalent rLukS-PV, Bivalent rLukS-PV / rAT, Placebo with adjuvant, Placebo
Biological
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
176 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
2
States / cities
Fort Sam Houston, Texas • Portsmouth, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 6, 2023 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Different Formulations of Monovalent Influenza A/Astrakhan/3212/2020 Like (H5N8) Virus Vaccine With AS03 Adjuvant System in Medically Stable Adults

NCT05975840
View directory record Official record
Conditions
Influenza, Human
Interventions
FLU Q-PAN H5N8 375_B, FLU Q-PAN H5N8 375_A, FLU Q-PAN H5N8 750_B, FLU Q-PAN H5N8 750_A
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
518 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
20
States / cities
Anniston, Alabama • Mobile, Alabama • Tempe, Arizona + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2025 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Booster Trial to 07-0019 With A/Anhui/05 With and Without MF59

NCT00912496
View directory record Official record
Conditions
Influenza
Interventions
MF-59, A/Anhui/05, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
637 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
10
States / cities
Atlanta, Georgia • Iowa City, Iowa • Baltimore, Maryland + 6 more
Source: ClinicalTrials.gov public record
Updated May 13, 2013 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity Study of a Recombinant Protein Vaccine (NDV-3) Against S.Aureus and Candida

NCT01273922
View directory record Official record
Conditions
Staphylococcal Infections, Candidiasis
Interventions
NDV-3 investigational vaccine
Biological
Lead sponsor
NovaDigm Therapeutics, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated May 21, 2012 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study to Assess the Immunogenicity, Tolerability and Safety of a Malaria Vaccine and Also Its Protective Efficacy in a Malaria Challenge Model

NCT01397227
View directory record Official record
Conditions
Malaria
Interventions
Ad35.CS.01/Ad26.CS.01 low dose (1 x 10^10 vp), Ad 35.CS.01/Ad 26.CS.01 high dose (5 x 10^10 vp), Placebo
Biological
Lead sponsor
Crucell Holland BV
Industry
Eligibility
18 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 6, 2012 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Phase II Tularemia Vaccine Comparison

NCT01150695
View directory record Official record
Conditions
Tularaemia
Interventions
Placebo, Undiluted Francisella tularensis live attenuated vaccine
Other · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
228 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
5
States / cities
Decatur, Georgia • Iowa City, Iowa • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2016 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immune Response to Different Combinations of the DNA-HIV-PT123 and AIDSVAX® B/E Vaccines in Healthy, HIV-Uninfected Adults

NCT02207920
View directory record Official record
Conditions
HIV Infections
Interventions
AIDSVAX B/E Vaccine, DNA-HIV-PT123 Vaccine, Placebo for DNA-HIV-PT123, Placebo for AIDSVAX B/E
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
7
States / cities
San Francisco, California • New York, New York • Rochester, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 14, 2021 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study to Learn About the Safety and Immune Response of a New Pneumococcal Vaccine in Adults

NCT06182124
View directory record Official record
Conditions
Pneumococcal Disease
Interventions
Multivalent Pneumococcal Vaccine - Formulation 1, Multivalent Pneumococcal Vaccine - Formulation 2, 20-valent pneumococcal conjugate vaccine (20vPnC), Licensed pneumococcal comparator vaccine, Multivalent Pneumococcal Vaccine - Formulation 3, Multivalent Pneumococcal Vaccine - Formulation 4
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,363 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
20
States / cities
Doral, Florida • Hialeah, Florida • Stockbridge, Georgia + 13 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

CSL H1N1 Influenza Vaccine Administered at Two Dose Levels in Adult and Elderly Populations

NCT00943488
View directory record Official record
Conditions
Influenza
Interventions
Inactivated H1N1 Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
408 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
4
States / cities
Iowa City, Iowa • Cincinnati, Ohio • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 30, 2012 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Western Equine Encephalitis Vaccine, Inactivated

NCT01159561
View directory record Official record
Conditions
Virus
Interventions
Western Equine Encephalitis Vaccine
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Fort Deterick, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 28, 2019 · Synced Jun 10, 2026, 2:10 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Evaluation Of Clostridium Difficile Vaccine Lot Consistency In Healthy Adults 65 To 85 Years Of Age

NCT03579459
View directory record Official record
Conditions
Clostridium Difficile Associated Disease
Interventions
Clostridium difficile vaccine, placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
65 Years to 85 Years
Enrollment
1,317 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
24
States / cities
Mobile, Alabama • Redding, California • Coral Gables, Florida + 20 more
Source: ClinicalTrials.gov public record
Updated Jan 18, 2023 · Synced Jun 10, 2026, 2:10 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Safety, Reactogenicity and Immunogenicity of a Venezuelan Equine Encephalitis DNA Vaccine Candidate Administered by Jet Injection

NCT06002503
View directory record Official record
Conditions
Vaccine Reaction
Interventions
Venezuelan Equine Encephalitis DNA Vaccine, PharmaJet Stratis Needle-free Injection System, PharmaJet Tropis Needle-free Injection System
Drug · Device
Lead sponsor
PharmaJet, Inc.
Industry
Eligibility
18 Years to 49 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced Jun 10, 2026, 2:10 PM 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 9, 2017 · Synced Jun 10, 2026, 2:10 PM EDT