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Showing 1–24 of 1,104 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 1 Interventional

A Placebo-Controlled, Phase I Clinical Trial to Evaluate the Safety and Immunogenicity of Recombinant Envelope Proteins of HIV-1 gp160 and gp120 in Children >= 1 Month Old With Asymptomatic HIV Infection

NCT00000762
View directory record Official record
Conditions
HIV Infections
Interventions
rgp120/HIV-1MN, rgp120/HIV-1 SF-2, gp160 Vaccine (MicroGeneSys)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Month to 18 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1996
U.S. locations
33
States / cities
Long Beach, California • Los Angeles, California • Oakland, California + 21 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 1 Interventional

PDE5 Inhibition Via Tadalafil to Enhance Anti-Tumor Mucin 1 (MUC1) Vaccine Efficacy in Patients With HNSCC

NCT02544880
View directory record Official record
Conditions
Head and Neck Squamous Cell Carcinoma, Head and Neck Cancer
Interventions
Tadalafil, Anti-MUC1 Vaccine, Anti-Influenza Vaccine, Tadalafil Placebo, Anti-MUC1 Vaccine Placebo, Standard of Care Treatment, Anti-Influenza Vaccine Placebo
Drug · Biological · Other
Lead sponsor
Donald T. Weed, MD, FACS
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

COVID-19 Bivalent Booster Megastudy

NCT05607082
View directory record Official record
Conditions
COVID-19
Interventions
COVID Booster text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
2,600,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study to Determine If a New Shigella Vaccine is Safe, Induces Immunity and The Best Dose Among Kenyan Infants

NCT04056117
View directory record Official record
Conditions
Shigellosis
Interventions
Shigella 4V, MenACWY, Rabies, Diphtheria, Tetanus and Pertussis (DTaP), Placebo
Biological
Lead sponsor
LimmaTech Biologics AG
Industry
Eligibility
8 Months to 50 Years
Enrollment
597 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
0
States / cities
Not listed
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Efficacy of Reminders to Complete HPV Series

NCT01731496
View directory record Official record
Conditions
Completion of Three Dose Series of HPV, Improvement in Vaccine Intervals Between HPV Doses
Interventions
Telephone reminder, Text Message reminder
Other
Lead sponsor
University of Rochester
Other
Eligibility
10 Years to 21 Years
Enrollment
749 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
3
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Feb 5, 2015 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase 1 Norwalk Vaccine Study

NCT00806962
View directory record Official record
Conditions
Norovirus
Interventions
Adjuvant/Excipients, placebo, Norwalk VLP Vaccine
Drug · Device · Biological
Lead sponsor
LigoCyte Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
4
States / cities
Baltimore, Maryland • St Louis, Missouri • Rochester, New York + 1 more
Source: ClinicalTrials.gov public record
Updated May 5, 2015 · Synced Sep 9, 2026, 12:34 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

A Trial to Evaluate Safety, Tolerability, and Immune Responses of an Investigational Monovalent Chimpanzee Adenoviral Vectored Sudan Ebolavirus Vaccine in Healthy Adults

NCT06803342
View directory record Official record
Conditions
Ebola Sudan Virus Disease
Interventions
cAd3-Sudan Vaccine, Placebo
Biological
Lead sponsor
Albert B. Sabin Vaccine Institute
Other
Eligibility
18 Years to 70 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
4
States / cities
Phoenix, Arizona • Melbourne, Florida • Chicago, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Multicenter, Randomized, Placebo-Controlled, Double-Blind Trial to Evaluate the Safety and Immunogenicity of the Therion Recombinant Vaccinia-HIV-1 IIIB ENV/GAG/POL Vaccine (TCB-3B) and MN RGP 120/HIV-1 In Alum.

NCT00000866
View directory record Official record
Conditions
HIV Infections
Interventions
MN rgp120/HIV-1, TBC-3B Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 1999
U.S. locations
4
States / cities
Baltimore, Maryland • St Louis, Missouri • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2021 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of HIL-214 With Routine Pediatric Vaccines

NCT05836012
View directory record Official record
Conditions
Gastroenteritis
Interventions
HIL-214, Placebo
Biological
Lead sponsor
HilleVax
Industry
Eligibility
2 Months to 2 Months
Enrollment
329 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
7
States / cities
Lafayette, Louisiana • Missoula, Montana • Hastings, Nebraska + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2025 · Synced Sep 9, 2026, 12:34 AM EDT
Terminated Phase 1 Interventional

Study Evaluating Vaccine in Adults With HIV

NCT00195312
View directory record Official record
Conditions
HIV Infections
Interventions
HIV-1 gag DNA (formulated with bupivacaine), IL-15 DNA (formulated with bupivacaine), IL-12 DNA (formulated with bupivacaine), Sodium chloride injection USP (0.9%)
Biological
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years to 50 Years
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
6
States / cities
Birmingham, Alabama • Denver, Colorado • Orlando, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2007 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Double Blind, Safety and Immunogenicity Study of Recombinant Botulinum Vaccine A/B

NCT00764634
View directory record Official record
Conditions
Botulism Vaccine
Interventions
Placebo (USP sterile saline for injection), rBV A/B-40 vaccine
Biological
Lead sponsor
DynPort Vaccine Company LLC, A GDIT Company
Industry
Eligibility
18 Years to 55 Years
Enrollment
440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
6
States / cities
Miami, Florida • Pembroke Pines, Florida • Lenexa, Kansas + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2011 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase 1 Safety and Immunogenicity Study in Healthy Adults of VAX125, a Recombinant HA-flagellin Influenza Vaccine

NCT00730457
View directory record Official record
Conditions
Influenza
Interventions
VAX125
Biological
Lead sponsor
VaxInnate Corporation
Industry
Eligibility
18 Years to 49 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Sep 22, 2014 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Clinical Trial to Study the Safety, Tolerance and Immunogenic Response to MCV4, Tdap and Bivalent rLP2086 Vaccine When Given at the Same Time to Children Between the Ages of 10 Through 12 Years of Age

NCT01461980
View directory record Official record
Conditions
Vaccines, Meningococcal Vaccines
Interventions
rLP2086 + MCV4 + Tdap, MCV4 + Tdap + saline, rLP2086 + saline
Biological
Lead sponsor
Pfizer
Industry
Eligibility
10 Years to 12 Years
Enrollment
2,648 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
117
States / cities
Birmingham, Alabama • Daphne, Alabama • Chandler, Arizona + 73 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2018 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Safety and Preliminary Efficacy of the Malaria Vaccine Candidates Falciparum Merozoite Protein-1 (FMP1) and SmithKlineBeecham (SKBB) Candidate Malaria Vaccine RTS,S

NCT01556945
View directory record Official record
Conditions
Malaria, Falciparum
Interventions
FMP1/AS02, RTS,S/AS02, AS02 adjuvant alone, Malaria challenge
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 45 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2001
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated May 1, 2014 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Inactivated Split Virus Seasonal Influenza Vaccine (Vero Cell-Derived)

NCT01773928
View directory record Official record
Conditions
Influenza
Interventions
Vero cell-derived trivalent influenza vaccine manufactured with the modified manufacturing process (VCIV modified), VCIV manufactured with the current manufacturing process (VCIV current), Fluzone®, licensed trivalent influenza vaccine (TIV)
Biological
Lead sponsor
Alachua Government Services, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,928 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
20
States / cities
Chandler, Arizona • Anaheim, California • Paramount, California + 17 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 2 Interventional Results available

Study of the Safety and Immune Response of a Meningococcal Vaccine Administered to Healthy Children

NCT00262028
View directory record Official record
Conditions
Prevention of Meningococcal Disease
Interventions
MenACWY-CRM Vaccine, MenACWY-PS Vaccine
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
12 Months to 10 Years
Enrollment
910 participants
Timeline
2005 – 2006
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Feb 10, 2016 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 2 Interventional

Amyloid Imaging And Safety Study Of ACC-001 In Subjects With Mild to Moderate Alzheimer's Disease

NCT01284387
View directory record Official record
Conditions
Alzheimer's Disease
Interventions
ACC-001 (vanutide cridificar)
Biological
Lead sponsor
JANSSEN Alzheimer Immunotherapy Research & Development, LLC
Industry
Eligibility
50 Years to 89 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
25
States / cities
Sun City, Arizona • La Jolla, California • Long Beach, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jan 4, 2015 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety of 3 New 6:2 Influenza Virus Reassortants in Adults

NCT01579916
View directory record Official record
Conditions
Influenza
Interventions
Trivalent Influenza Virus Vaccine, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
303 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
3
States / cities
Miami, Florida • Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 2, 2014 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Study to Describe the Safety, Tolerability, Immunogenicity, and Efficacy of RNA Vaccine Candidates Against COVID-19 in Healthy Individuals

NCT04368728
View directory record Official record
Conditions
SARS-CoV-2 Infection, COVID-19
Interventions
BNT162b1, BNT162b2, Placebo, BNT162b2SA
Biological · Other
Lead sponsor
BioNTech SE
Industry
Eligibility
12 Years and older
Enrollment
46,969 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
154
States / cities
Athens, Alabama • Birmingham, Alabama • Huntsville, Alabama + 106 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of a Monovalent mRNA Vaccine Encoding Influenza Hemagglutinin in Adult Participants 18 Years of Age and Older

NCT06118151
View directory record Official record
Conditions
Influenza, Influenza Immunization
Interventions
Influenza Hemagglutinin mRNA vaccine, Quadrivalent Recombinant Influenza Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
388 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
20
States / cities
Rolling Hills Estates, California • San Diego, California • Coral Gables, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety, Reactogenicity, and Effectiveness of mRNA-1273 Vaccine in Adolescents 12 to <18 Years Old to Prevent COVID-19

NCT04649151
View directory record Official record
Conditions
SARS-CoV-2
Interventions
mRNA-1273, Placebo, mRNA-1273.222
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
12 Years to 18 Years
Enrollment
4,328 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
48
States / cities
Banning, California • La Mesa, California • Lake Worth, Florida + 41 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Planning Message Recommending Same Time/Location as Last Vaccine

NCT05612386
View directory record Official record
Conditions
COVID-19
Interventions
COVID Booster text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
520,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Efficacy of a Plant-derived Quadrivalent Virus-like Particle (VLP) Vaccine in the Elderly

NCT03739112
View directory record Official record
Conditions
Virus Diseases, RNA Virus Infections, Respiratory Tract Diseases, Respiratory Tract Infections
Interventions
Quadrivalent VLP Vaccine, Fluarix Quadrivalent® Comparator Vaccine
Biological
Lead sponsor
Medicago
Industry
Eligibility
65 Years and older
Enrollment
12,794 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
50
States / cities
Mobile, Alabama • Tempe, Arizona • Banning, California + 42 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Sep 9, 2026, 12:34 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Responses to Influenza Vaccine in Patients With Mitochondrial Disorders (MELAS)

NCT01831934
View directory record Official record
Conditions
MELAS Syndrome
Interventions
Fluzone®
Biological
Lead sponsor
Stanford University
Other
Eligibility
13 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 9, 2026, 12:34 AM EDT