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ClinicalTrials.gov public records Last synced Oct 5, 2026, 5:24 AM EDT

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Showing 49–72 of 984 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo Vaccine Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Evaluate Efficacy, Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Herpes Zoster (HZ) Vaccine GSK1437173A in Adults Aged 70 Years and Older

NCT01165229
View directory record Official record
Conditions
Herpes Zoster, Herpes Zoster Vaccine
Interventions
Herpes Zoster Vaccine GSK1437173A, Placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
70 Years and older
Enrollment
14,819 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
43
States / cities
Mesa, Arizona • Phoenix, Arizona • Tucson, Arizona + 36 more
Source: ClinicalTrials.gov public record
Updated Apr 27, 2020 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Protective Efficacy of a Single Dose of a Trivalent Live Attenuated Dengue Vaccine to Protect Against Infection With DENV-2

NCT02433652
View directory record Official record
Conditions
Dengue
Interventions
Recombinant live attenuated trivalent dengue vaccine, Placebo, rDEN2Δ30-7169 vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2015
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Feb 28, 2018 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Trial to Evaluate the Safety and Systems Biology Response of Ebolavirus Zaire Vaccine (ChAd3-EBO-Z)

NCT03583606
View directory record Official record
Conditions
Ebola Disease, Immunisation
Interventions
ChAd3-EBO-Z, MVA Multi-Filo Ebola Vaccine, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Evaluating the Infectivity, Safety, and Immunogenicity of a Single Dose of a Recombinant Live-Attenuated Respiratory Syncytial Virus Vaccine (D46/NS2/N/ΔM2-2-HindIII) in RSV-Seronegative Infants 6 to 24 Months of Age

NCT03102034
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
D46/NS2/N/ΔM2-2-HindIII, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 24 Months
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
10
States / cities
Los Angeles, California • Aurora, Colorado • Atlanta, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2022 · Synced Oct 5, 2026, 5:24 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

A Double-Blind Placebo-Control Dose Escalating Study to Evaluate the Safety and Immunogenicity of dmLT by Oral, Sublingual and Intradermal Vaccination in Adults Residing in an Endemic Area

NCT03548064
View directory record Official record
Conditions
Gastroenteritis Escherichia Coli, Immunisation
Interventions
Placebo, Recombinant Double Mutant Heat-Labile Toxin LT(R192G/L211A) (dmLT) Oral enterotoxigenic Escherichia coli (ETEC) Vaccine
Other · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Oct 5, 2026, 5:24 AM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Various Respiratory Syncytial Virus (RSV) Pre-Fusion (preF)-Based Vaccine Formulations in Adults Aged 60 Years and Older

NCT05327816
View directory record Official record
Conditions
Respiratory Syncytial Virus-associated Lower Respiratory Tract Disease Prevention
Interventions
RSV preF-based Vaccine, Placebo
Biological · Drug
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
60 Years and older
Enrollment
132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
11
States / cities
Long Beach, California • DeLand, Florida • Miami Lakes, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of mRNA-1010 Seasonal Influenza Vaccine in Healthy Adults

NCT04956575
View directory record Official record
Conditions
Seasonal Influenza
Interventions
mRNA-1010, Placebo, Active Comparator
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
885 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
21
States / cities
Phoenix, Arizona • Tempe, Arizona • Colton, California + 17 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2023 · Synced Oct 5, 2026, 5:24 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Th1 Response to Influenza: Aging and Vaccine Efficacy

NCT00396305
View directory record Official record
Conditions
Influenza
Interventions
Placebo, Trivalent Inactivated Influenza
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
21 Years and older
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study to Evaluate the Safety of a Monovalent Vaccine of a New 6:2 Reassortant in Healthy Adults (AV024)

NCT00240877
View directory record Official record
Conditions
Influenza
Interventions
AV024, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 64 Years
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 20, 2008 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Persistent Readiness Through Early Prediction Immunization Study

NCT05346302
View directory record Official record
Conditions
Inflammatory Response
Interventions
Pneumovax 23, Typhim VI, Saline
Drug · Other
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 40 Years
Enrollment
249 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Feb 14, 2023 · Synced Oct 5, 2026, 5:24 AM EDT
Terminated Phase 3 Interventional

Evaluation of a Third and Fourth Dose of StaphVAX® in Adults With End-Stage Renal Disease

NCT00130260
View directory record Official record
Conditions
Staphylococcal Infections, Chronic Kidney Failure
Interventions
Staph aureus types 5 and 8 conjugate vaccine, placebo
Biological
Lead sponsor
Nabi Biopharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jan 4, 2008 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

A Study to Evaluate the Immunogenicity, Safety and Tolerability of Ad26.ZEBOV and MVA-BN-Filo in Healthy Adult Participants

NCT02543268
View directory record Official record
Conditions
Healthy
Interventions
Ad26.ZEBOV-Batch #1, Ad26.ZEBOV-Batch #2, Ad26.ZEBOV-Batch #3, MVA-BN-Filo, Placebo
Biological
Lead sponsor
Crucell Holland BV
Industry
Eligibility
18 Years to 50 Years
Enrollment
329 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
6
States / cities
Huntsville, Alabama • San Diego, California • Melbourne, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2025 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Probiotic Supplementation on Immune Function in Healthy Infants

NCT01542320
View directory record Official record
Conditions
Inflammation
Interventions
Lactobacillus reuteri DSM 17938, Placebo
Dietary Supplement · Other
Lead sponsor
Emory University
Other
Eligibility
6 Weeks to 32 Weeks
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 6, 2015 · Synced Oct 5, 2026, 5:24 AM 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 5, 2026, 5:24 AM EDT
Completed Phase 3 Interventional Results available

Vaccine Therapy in Treating Patients With Metastatic Prostate Cancer That Has Not Responded to Hormone Therapy

NCT00005947
View directory record Official record
Conditions
Prostate Cancer
Interventions
sipuleucel-T, Placebo
Biological
Lead sponsor
Dendreon
Industry
Eligibility
18 Years and older · Male only
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2004
U.S. locations
34
States / cities
Duarte, California • Loma Linda, California • Rancho Mirage, California + 26 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2010 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 2 Interventional

A Study to Investigate Vaccine Responses in Subcutaneous Amlitelimab Treated Atopic Dermatitis Participants Aged 18 Years and Older Compared With Placebo

NCT06015308
View directory record Official record
Conditions
Dermatitis Atopic
Interventions
Amlitelimab, Placebo, Tdap vaccine, PPS vaccine
Drug · Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
47
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Anaheim, California + 40 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

High Dose IMVAMUNE® in Vaccinia-Naive Individuals

NCT00879762
View directory record Official record
Conditions
Smallpox
Interventions
MVA Smallpox Vaccine, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 38 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
2
States / cities
Iowa City, Iowa • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 13, 2025 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immune Response to Two Admixtures of a Tetravalent Dengue Virus Vaccine

NCT01436422
View directory record Official record
Conditions
Dengue
Interventions
TetraVax-DV Vaccine - Admixture TV003, TetraVax-DV Vaccine - Admixture TV005, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
3
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Aug 20, 2015 · Synced Oct 5, 2026, 5:24 AM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Evaluating Intra-articular Injection of Axolotl Ambient Compared to Saline in Subjects With Ankle Osteoarthritis

NCT05092646
View directory record Official record
Conditions
Ankle Osteoarthritis
Interventions
Axolotl Ambient, "Drug/Placebo: 0.9% Normal Saline"
Biological · Drug
Lead sponsor
Axolotl Biologix
Industry
Eligibility
18 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
3
States / cities
Boise, Idaho • Shreveport, Louisiana • Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study to Evaluate the Safety of a Bivalent Vaccine of New 6:2 Influenza Virus Reassortants in Healthy Adults

NCT00192127
View directory record Official record
Conditions
Influenza
Interventions
FluMist, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 18, 2007 · Synced Oct 5, 2026, 5:24 AM 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 11, 2012 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study Confirming A Human Challenge Model and Investigating The Safety Of VLA1701

NCT03576183
View directory record Official record
Conditions
Enterotoxigenic Escherichia Coli Infection, Diarrhea
Interventions
VLA1701, Placebo, Challenge Strain
Biological · Other
Lead sponsor
Valneva Austria GmbH
Industry
Eligibility
18 Years to 49 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 23, 2021 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of the Sing2016 M2SR H3N2 Monovalent Influenza Vaccine in Adults Ages 50 to 85 Years Old

NCT04785794
View directory record Official record
Conditions
Influenza Vaccine
Interventions
Sing2016 M2SR H3N2 influenza vaccine, Placebo
Biological · Other
Lead sponsor
FluGen Inc
Industry
Eligibility
50 Years to 85 Years
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
3
States / cities
Anaheim, California • DeLand, Florida • Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 15, 2023 · Synced Oct 5, 2026, 5:24 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Efficacy of GSK Neisseria Gonorrhoeae GMMA (NgG) Investigational Vaccine When Administered to Healthy Adults 18 to 50 Years of Age

NCT05630859
View directory record Official record
Conditions
Sexually Transmitted Diseases
Interventions
NgG 12.5 µg investigational vaccine, NgG 25 µg investigational vaccine, NgG 50 µg investigational vaccine, Placebo
Biological · Combination Product
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 50 Years
Enrollment
1,009 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
7
States / cities
Washington D.C., District of Columbia • Lenexa, Kansas • Boston, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Oct 5, 2026, 5:24 AM EDT