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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Vaccine Candidate #1 Clear all
Recruiting Phase 2 Interventional Accepts healthy volunteers

A Study to Learn About mRNA Vaccines Against Influenza in Adults

NCT07431853
View directory record Official record
Conditions
Healthy Adults
Interventions
Vaccine Candidate #1, Vaccine Candidate #2, Vaccine Candidate #3, Vaccine Candidate #4, Vaccine Candidate #5, Vaccine Candidate #6, TIV1 or TIV2
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
770 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
15
States / cities
Mobile, Alabama • Walnut Creek, California • Milford, Connecticut + 12 more
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 27, 2026, 6:42 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Study of a Candidate Clostridium Difficile Toxoid Vaccine in Subjects at Risk for C. Difficile Infection

NCT01887912
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
C. difficile Toxoid Vaccine, Placebo: 0.9% normal saline
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
50 Years and older
Enrollment
9,302 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
142
States / cities
Huntsville, Alabama • Mobile, Alabama • Flagstaff, Arizona + 124 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2022 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of the Safety and Immune Response of an Investigational mRNA Vaccine for the Prevention of Respiratory Syncytial Virus and/or Human Metapneumovirus in Participants Aged 18 to 49 Years and 60 Years and Older

NCT06237296
View directory record Official record
Conditions
Respiratory Syncytial Virus Infection, Healthy Volunteers, Metapneumovirus Infection
Interventions
RSV/hMPV mRNA LNP 1, RSV/hMPV mRNA LNP 2, RSV mRNA LNP 1, hMPV mRNA LNP 1
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
558 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
9
States / cities
Gardena, California • Hallandale, Florida • Meridian, Idaho + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety of Tetravalent Dengue Vaccine Candidate (TDV) in Flavivirus-Naïve and Dengue-Immune Adults

NCT03746015
View directory record Official record
Conditions
Dengue Fever
Interventions
TDV
Biological
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
2
States / cities
Peoria, Illinois • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 7, 2025 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study to Compare Safety and Immunogenicity of Commercial Scale Consistency Lots of Herpes Simplex Vaccine

NCT00224471
View directory record Official record
Conditions
Herpes Simplex
Interventions
GSK208141 vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
10 Years to 17 Years · Female only
Enrollment
671 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
9
States / cities
Mesa, Arizona • Fountain Valley, California • Golden, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2016 · Synced Sep 27, 2026, 6:42 PM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study to Learn About a Modified RNA Vaccine Against Shingles in Healthy Adults

NCT05703607
View directory record Official record
Conditions
Shingles, Herpes Zoster Infection, Human
Interventions
Candidate 1: PF-07915234: VZV modRNA Powder for Suspension for Injection, Candidate 1: PF-07915234: VZV modRNA Suspension for Injection, Candidate 2: PF-07921188: VZV modRNA Suspension for Injection, Candidate 3: PF-07921186: VZV modRNA Suspension for Injection, Shingrix, Candidate 2: PF-07921188: VZV modRNA Powder for Suspension for Injection
Biological
Lead sponsor
Pfizer
Industry
Eligibility
50 Years to 85 Years
Enrollment
484 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
35
States / cities
Gilbert, Arizona • Mesa, Arizona • Palo Alto, California + 24 more
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Lot-to-lot Consistency of 3 Lots of Tetravalent Dengue Vaccine (TDV) in Non-endemic Country(Ies) for Dengue

NCT03423173
View directory record Official record
Conditions
Dengue Fever
Interventions
TAK-003, Placebo
Biological
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 60 Years
Enrollment
923 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
14
States / cities
Huntsville, Alabama • Anaheim, California • Boise, Idaho + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 19, 2020 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Recombinant VSV (rVSV)-Marburg Virus Vaccine Candidate (PHV01) in Healthy Adult Subjects

NCT06265012
View directory record Official record
Conditions
Marburg Virus Disease
Interventions
PHV01, Placebo
Biological
Lead sponsor
Public Health Vaccines LLC
Industry
Eligibility
18 Years to 60 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Hollywood, Florida
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Demonstrate Consistency of Three Lots of a Live-attenuated Chikungunya Virus Vaccine Candidate in Healthy Adults

NCT04786444
View directory record Official record
Conditions
Chikungunya Virus Infection
Interventions
Biological Vaccine VLA1553
Biological
Lead sponsor
Valneva Austria GmbH
Industry
Eligibility
18 Years to 45 Years
Enrollment
409 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
12
States / cities
Coral Gables, Florida • Fort Myers, Florida • Ponte Vedra, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

H5N8 Mix and Match With or Without AS03 or MF59 in Healthy Adults

NCT02624219
View directory record Official record
Conditions
Avian Influenza, Influenza
Interventions
AS03, MF59 adjuvant, Monovalent Influenza A/H5N8 vaccine
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 64 Years
Enrollment
276 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
4
States / cities
Iowa City, Iowa • St Louis, Missouri • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2019 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy, Immunogenicity and Safety Study of GSK Biologicals' Candidate Malaria Vaccine Evaluating Different Dose Schedules in a Sporozoite Challenge Model in Healthy Malaria-naïve Adults

NCT03162614
View directory record Official record
Conditions
Malaria
Interventions
RTS,S/AS01E, RTS,S/AS01B, Sporozoite-infected mosquitoes challenge.
Biological · Procedure
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 55 Years
Enrollment
154 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 26, 2020 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety of Tetravalent Dengue Vaccine (TDV) at the End of Shelf Life in Healthy Adults

NCT03771963
View directory record Official record
Conditions
Dengue Fever
Interventions
Tetravalent Dengue Vaccine (TDV)
Biological
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 60 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
Anaheim, California • Hutchinson, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 6, 2021 · Synced Sep 27, 2026, 6:42 PM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers Results available

Study on an Investigational Yellow Fever Vaccine Compared With YF-VAX in Adults in the USA

NCT04942210
View directory record Official record
Conditions
Yellow Fever, Healthy Volunteers
Interventions
Yellow fever vaccine (produced on serum-free Vero cells), Yellow fever vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years to 60 Years
Enrollment
568 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
11
States / cities
Decatur, Georgia • New Orleans, Louisiana • Baltimore, Maryland + 8 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Determine the Effects of an Investigational Malaria Vaccine Given to Adults Living in the United States and Thereafter to Adults Living in Kenya

NCT00666380
View directory record Official record
Conditions
Malaria
Interventions
Plasmodium falciparum Malaria Protein 010 (FMP010)
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 50 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated May 28, 2015 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Study of VMP001 and AS01B (Adjuvant Formulation) in Healthy Malaria-Naïve Adults

NCT01157897
View directory record Official record
Conditions
Malaria, Plasmodium Vivax
Interventions
VMP001, P. vivax sporozoite challenge
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 55 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated May 28, 2019 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response to a Bird Flu Virus Vaccine (H9N2) in Healthy Adults (Study A)

NCT00110279
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
H9N2 (6-2) AA ca Reassortant (A/chicken/Hong Kong/G9/97 x A/Ann Arbor/6/60 ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 20, 2008 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Single Group Study of the Safety of and Immune Response to a Bird Flu Virus Vaccine (H5N1) in Healthy Adults

NCT00488046
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
H5N1 (6-2) AA ca Recombinant (A/Hong Kong/213/2003 x A/AnnArbor/6/60 ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 19, 2007 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of VXCO-100, a SARS-CoV Candidate Vaccine in Healthy Adults in the United States

NCT05870839
View directory record Official record
Conditions
SARS-CoV, SARS-CoV-2
Interventions
VXCO-100
Biological
Lead sponsor
Vaccine Company, Inc.
Industry
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
3
States / cities
Decatur, Georgia • Baltimore, Maryland • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 9, 2024 · Synced Sep 27, 2026, 6:42 PM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

A Study of an Epstein-Barr Virus (EBV) Candidate Vaccine, mRNA-1195, in 18- to 55-Year-Old Healthy Participants

NCT05831111
View directory record Official record
Conditions
Epstein-Barr Virus Infection
Interventions
mRNA-1195.1, mRNA-1195.2, mRNA-1189, Placebo, mRNA-1195
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
482 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
34
States / cities
Anniston, Alabama • Tucson, Arizona • Huntington Beach, California + 30 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Safety and Immune Response to Different Doses of a Cytomegalovirus Vaccine in Healthy Adults

NCT05089630
View directory record Official record
Conditions
Cytomegalovirus Infections
Interventions
Pentamer (low)/gB(low)/Adjuvant vaccine, Pentamer (med)/gB(low)/Adjuvant vaccine, Pentamer (med)/gB(med)/Adjuvant vaccine, Pentamer (high)/gB(med)/Adjuvant vaccine, Placebo (saline solution)
Biological · Combination Product
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 50 Years
Enrollment
333 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
18
States / cities
Anaheim, California • Long Beach, California • Los Angeles, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Phase 2 Shigella Vaccine and Challenge

NCT04242264
View directory record Official record
Conditions
Immunisation, Shigella Infection
Interventions
Placebo, Shigella sonnei strain 53G, WRSs2
Other · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
2
States / cities
Decatur, Georgia • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Comparison of GSK Biologicals' DTaP-IPV Candidate Vaccine to DTaP and IPV Separately Administered Vaccines in Terms of Immune Response and Safety

NCT00263692
View directory record Official record
Conditions
Diphtheria, Acellular Pertussis, Tetanus
Interventions
Prophylaxis: Diphtheria, tetanus, pertussis, poliovirus type 1, type 2 and type 3
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
4 Years to 6 Years
Enrollment
401 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
15
States / cities
Jonesboro, Arkansas • Fountain Valley, California • Oakland, California + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2016 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Single Group Study of the Safety of and Immune Response to a Bird Flu Vaccine (H7N3) in Healthy Adults

NCT00516035
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
Live Influenza A Vaccine H7N3 (6-2) AA ca Recombinant (A/chicken/British Columbia/CN-6/2004 x A/Ann Arbor/6/60 ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 17, 2015 · Synced Sep 27, 2026, 6:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response to a Bird Flu Virus Vaccine (H9N2) in Healthy Adults (Study B)

NCT00380237
View directory record Official record
Conditions
Influenza, Virus Diseases
Interventions
H9N2 (6-2) AA ca Reassortant (A/Chicken/Hong Kong/G9/97 x A/Ann Arbor/6/60 ca)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 20, 2008 · Synced Sep 27, 2026, 6:42 PM EDT