Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 19, 2026, 10:18 AM EDT

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Showing 1–24 of 1,832 matching trials from the live ClinicalTrials.gov search.
Conditions
Pneumococcal Immunization, Healthy Volunteers
Interventions
PCV21 vaccine, 20vPCV licensed vaccine
Biological
Lead sponsor
Sanofi
Industry
Eligibility
42 Days to 89 Days
Enrollment
2,195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
14
States / cities
Fayetteville, Arkansas • Huntington Park, California • Los Angeles, California + 10 more
Conditions
Healthy Volunteer, HIV Vaccine
Interventions
Ad4-mgag, Ad4-EnvC150, Placebo Comparator, AIDSVAX B/E
Biological · Other
Lead sponsor
Emergent BioSolutions
Industry
Eligibility
18 Years to 49 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Redwood City, California
Conditions
HIV Infections
Interventions
HIV-1 Peptide Vaccine, Microparticulate Monovalent, rgp120/HIV-1MN Monovalent Octameric V3 Peptide Vaccine
Biological
Lead sponsor
United Biomedical
Industry
Eligibility
18 Years to 50 Years
Healthy volunteers
Accepts healthy volunteers
U.S. locations
1
States / cities
San Francisco, California
Conditions
Malaria
Interventions
PfSPZ Vaccine, PfSPZ Challenge (7G8) for CHMI, Normal Saline
Biological · Other
Lead sponsor
Sanaria Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Malaria
Interventions
Crucell's replication deficient adenovirus type 35 circumsporozoite malaria vaccine (Ad35.CS.01), GSK Biologicals' malaria vaccine 257049 (2 doses), GSK Biologicals' malaria vaccine 257049 (3 doses), Sporozoite challenge
Biological · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 50 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Silver Spring, Maryland
Completed Phase 3 Interventional Accepts healthy volunteers

A Strain Change Study for SARS-CoV-2 rS Vaccines

NCT06409663
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2 Infection
Interventions
NVX-CoV2705 Vaccine
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 90 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
Phoenix, Arizona • Austin, Texas
Conditions
HIV Infections
Interventions
ALVAC(2)120(B,MN)GNP (vCP1452), MN rgp120/HIV-1 and GNE8 rgp120/HIV-1
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2003
U.S. locations
17
States / cities
Birmingham, Alabama • San Francisco, California • Baltimore, Maryland + 9 more
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Vaccinia Virus Vaccine (APSV) in Vaccinia- Naive Subjects: PILOT

NCT00038987
Conditions
Smallpox
Interventions
Wetvax (APSV)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 32 Years
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002
U.S. locations
4
States / cities
Oakland, California • Iowa City, Iowa • Nashville, Tennessee + 1 more
Conditions
Papillomavirus Infections, Coronavirus Disease (COVID-19)
Interventions
9vHPV Vaccine, mRNA-1273 Vaccine
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
9 Years to 11 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
38
States / cities
Phoenix, Arizona • Tucson, Arizona • Jonesboro, Arkansas + 33 more
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Clostridium Difficile Vaccine Efficacy Trial

NCT03090191
Conditions
Clostridium Difficile Infection
Interventions
Clostridium difficile vaccine, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
50 Years and older
Enrollment
17,535 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
220
States / cities
Athens, Alabama • Huntsville, Alabama • Mobile, Alabama + 145 more
Conditions
Dengue Virus
Interventions
Investigational Vaccine for DEN1, Placebo injection
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
2
States / cities
Burlington, Vermont
Conditions
Healthy, Chronic Stable Illness
Interventions
casirivimab+imdevimab, Moderna mRNA-1273 vaccine
Drug · Biological
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
18 Years to 90 Years
Enrollment
295 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
6
States / cities
Little Rock, Arkansas • Rogers, Arkansas • Hialeah, Florida + 3 more
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
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
Conditions
Venezuelan Equine Encephalitis, Venezuelan Equine Encephalitis Virus Infection
Interventions
V4020
Biological
Lead sponsor
Medigen, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Influenza
Interventions
Quadrivalent VLP Vaccine, Comparator TIV
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 49 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
5
States / cities
Anaheim, California • Miami, Florida • Lenexa, Kansas + 2 more
Conditions
Influenza
Interventions
Trivalent influenza vaccine (TIVc), Trivalent influenza vaccine-licensed
Biological
Lead sponsor
Seqirus
Industry
Eligibility
6 Months to 48 Months
Enrollment
671 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
21
States / cities
Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 15 more
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Long-Term Safety and Antibody Persistence of TDV and the Impact of a Booster Dose

NCT03999996
Conditions
Dengue Fever
Interventions
Takeda's Dengue Tetravalent Vaccine (Live, Attenuated) (TDV), Placebo
Biological
Lead sponsor
Takeda
Industry
Eligibility
13 Years to 63 Years
Enrollment
365 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
8
States / cities
Huntsville, Alabama • Peoria, Illinois • Newton, Kansas + 5 more
Conditions
HER2+ Cancer
Interventions
AVX901
Biological
Lead sponsor
H. Kim Lyerly
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Pneumococcal Infections
Interventions
V114, Prevnar 13™, PNEUMOVAX™23
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
4
States / cities
Orlando, Florida • West Palm Beach, Florida • Houston, Texas
Conditions
HIV Infections
Interventions
APL 400-047, ALVAC-HIV MN120TMG (vCP205), Sargramostim
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 1999
U.S. locations
4
States / cities
Birmingham, Alabama • Baltimore, Maryland • Rochester, New York + 1 more
Conditions
Type 1 Diabetes
Interventions
Diabetes-suppressive dendritic cell vaccine, control dendritic cells
Biological
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Herpes Zoster
Interventions
Herpes Zoster Vaccine GSK1437173A, Placebo
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
5
States / cities
Long Beach, California • San Francisco, California • Orlando, Florida + 2 more
Conditions
Venezuelan Equine Encephalitis Virus Infection
Interventions
Venezuelan Equine Encephalitis Virus DNA Vaccine Candidate, 0.9% saline placebo
Biological · Other
Lead sponsor
Ichor Medical Systems Incorporated
Industry
Eligibility
18 Years to 49 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
San Diego, California