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Showing 1–24 of 533 matching trials from the live ClinicalTrials.gov search.
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Recruiting Phase 2 Interventional Accepts healthy volunteers

Safety, and Efficacy Study of ShigETEC, a Live, Attenuated, Oral Combination Vaccine to Prevent Shigella and ETEC Disease Delivered to Healthy Adults Ages 18 to 50 Years Old

NCT07049159
View directory record Official record
Conditions
Shigella
Interventions
ShigETEC vaccine, Placebo, Challenge: Shigella flexneri 2457T at a dose of 1.5x10^3 CFU
Biological · Other
Lead sponsor
Eveliqure Biotechnologies GmbH
Industry
Eligibility
18 Years to 50 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 7, 2025 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PROmotion of COVID-19 BOOSTer VA(X)Ccination in the Emergency Department - PROBOOSTVAXED

NCT06156215
View directory record Official record
Conditions
COVID-19
Interventions
Vaccine Messaging, Vaccine Acceptance Question
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
919 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
7
States / cities
San Francisco, California • Durham, North Carolina • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2025 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study on the Immune Response and Safety of a Vaccine Against Respiratory Syncytial Virus (RSV) When Given Alone and Together With a COVID-19 mRNA Vaccine in Adults Aged 50 Years and Above

NCT06374394
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
RSVPreF3 OA investigational vaccine, COVID-19 mRNA vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
50 Years and older
Enrollment
841 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
8
States / cities
Coral Gables, Florida • Savannah, Georgia • Evansville, Indiana + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 25, 2025 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity Study of an Inactivated Influenza Vaccine (Split Virus, Vero Cell Derived) to Prevent Culture Confirmed Influenza Infection

NCT00800605
View directory record Official record
Conditions
Influenza
Interventions
Vero cell-derived, trivalent, seasonal influenza vaccine, Placebo: Phosphate-buffered saline
Biological
Lead sponsor
Alachua Government Services, Inc.
Industry
Eligibility
18 Years to 49 Years
Enrollment
7,250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
36
States / cities
Tucson, Arizona • Sacramento, California • San Diego, California + 31 more
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Phase 3 Pivotal Trial of NanoFlu™ in Older Adults

NCT04120194
View directory record Official record
Conditions
Influenza, Human
Interventions
NanoFlu, Fluzone Quadrivalent
Biological
Lead sponsor
Novavax
Industry
Eligibility
65 Years and older
Enrollment
2,654 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
19
States / cities
Hollywood, Florida • Savannah, Georgia • Stockbridge, Georgia + 16 more
Source: ClinicalTrials.gov public record
Updated May 5, 2023 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Recombinant Influenza Vaccine Containing Different H3 Antigens Without or With Adjuvant in Healthy Adult Subjects

NCT04451954
View directory record Official record
Conditions
Influenza Immunisation, Healthy Volunteers
Interventions
Quadrivalent RIV with H3 strain 1, Quadrivalent RIV with H3 strain 1 and adjuvant, Quadrivalent RIV with H3 strain 2, Quadrivalent RIV with H3 strain 2 and adjuvant, Quadrivalent RIV with 2018-2019 NH H3 strain, Quadrivalent RIV with 2018-2019 NH H3 strain and adjuvant
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
5
States / cities
San Diego, California • Melbourne, Florida • Orlando, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Sep 1, 2026, 10:42 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Study of a 4-Dose Regimen of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age

NCT06736041
View directory record Official record
Conditions
Pneumococcal Immunization
Interventions
PCV21 vaccine, Prevnar 20 vaccine, M-M-R II vaccine, RotaTeq, Vaxelis vaccine, Varivax, Hexaxim Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
42 Days to 89 Days
Enrollment
1,714 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
66
States / cities
Glendale, Arizona • Tucson, Arizona • Fayetteville, Arkansas + 48 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 1 Interventional

Phase I Study of INO-1800 With or Without INO-9112 + EP in Chronic Hepatitis B Subjects

NCT02431312
View directory record Official record
Conditions
Hepatitis B
Interventions
INO-1800, INO-9112, Nucleos(t)ide Analogue Treatment
Biological · Drug
Lead sponsor
Inovio Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
7
States / cities
San Diego, California • Miami, Florida • Manhasset, New York + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 14, 2019 · Synced Sep 1, 2026, 10:42 AM EDT
Recruiting Phase 3 Interventional

Randomized, Embedded, Multifactorial Adaptive Platform Trial for Community- Acquired Pneumonia

NCT02735707
View directory record Official record
Conditions
Community-acquired Pneumonia, Influenza, COVID-19
Interventions
Ceftriaxone, Moxifloxacin or Levofloxacin, Piperacillin-tazobactam, Ceftaroline, Amoxicillin-clavulanate, Standard course macrolide, Extended course macrolide, No systemic corticosteroid, Fixed-duration Hydrocortisone, Shock-dependent hydrocortisone, Fixed-duration higher dose Hydrocortisone, No antiviral agent for influenza, Five-days oseltamivir, Ten-days oseltamivir, No antiviral agent for COVID-19, Lopinavir / Ritonavir, Hydroxychloroquine, Hydroxychloroquine + lopinavir/ritonavir, Ivermectin, No immune modulation for COVID-19, Interferon beta-1a, Anakinra, Tocilizumab, Sarilumab, Local standard venous thromboprophylaxis, Therapeutic dose anticoagulation, Conventional low dose thromboprophylaxis, Intermediate dose thromboprophylaxis, Continuation of therapeutic dose anticoagulation, No immunoglobulin, Convalescent plasma, Delayed administration of convalescent plasma, No vitamin C, Vitamin C, No antiplatelet, Aspirin, P2Y12 inhibitor, No simvastatin, Simvastatin, Eritoran, Apremilast, Clinician-preferred mechanical ventilation strategy, Protocolised mechanical ventilation strategy, No renin-angiotensin system inhibitor, Angiotensin converting enzyme inhibitor, Angiotensin Receptor Blockers, ARB + DMX-200, No cysteamine, Cysteamine, Fixed-duration dexamethasone, Baloxavir Marboxil, Five-days oseltamivir + baloxavir marboxil, Ten-days oseltamivir + baloxavir marboxil, No endothelial modulator, Imatinib, No Immune Modulator for Influenza, Baricitinib, Nirmatrelvir/ritonavir, Remdesivir, Nirmatrelvir/ritonavir + remdesivir
Drug · Other · Biological + 1 more
Lead sponsor
UMC Utrecht
Other
Eligibility
18 Years and older
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2028
U.S. locations
11
States / cities
Jacksonville, Florida • Augusta, Georgia • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2024 · Synced Sep 1, 2026, 10:42 AM EDT
Terminated Phase 2 Interventional Results available

Allogeneic Myeloma GM-CSF Vaccine With Lenalidomide in Multiple Myeloma Patients in Complete or Near Complete Remission

NCT03376477
View directory record Official record
Conditions
Multiple Myeloma
Interventions
GM-CSF vaccine, Lenalidomide, Prevnar13, Placebo Prevnar13, Placebo GM-CSF Vaccine
Biological · Drug · Other
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 1 Interventional Results available

HEPLISAV-B® in Adults With End-Stage Renal Disease (ESRD) Undergoing Hemodialysis

NCT03934736
View directory record Official record
Conditions
End Stage Renal Disease on Hemodialysis (Diagnosis)
Interventions
HEPLISAV-B®
Drug
Lead sponsor
Dynavax Technologies Corporation
Industry
Eligibility
18 Years and older
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
20
States / cities
Bloomfield, Connecticut • Middlebury, Connecticut • Hollywood, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2024 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of a Single Vaccination With One of Three Ascending Dose Levels of a 4-Antigen Staphylococcus Aureus Vaccine (SA4Ag) in Healthy Adults Aged 18 to <65 Years

NCT01364571
View directory record Official record
Conditions
Staphylococcal Infections
Interventions
SA4Ag vaccine low dose, Blood draw, Colonization swab sample, SA4Ag vaccine mid dose, Blood sample, SA4Ag vaccine high dose, Placebo
Biological · Procedure
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 64 Years
Enrollment
456 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
16
States / cities
Hollywood, Florida • South Miami, Florida • Overland Park, Kansas + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2019 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Collaborative Efforts to Increase Flu Vaccination

NCT01403649
View directory record Official record
Conditions
Influenza, Collaboration
Interventions
Private/public collaboration to increase flu vaccination, Usual care
Behavioral · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
6 Months to 18 Years
Enrollment
117,175 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
27
States / cities
Aurora, Colorado • Brighton, Colorado • Broomfield, Colorado + 15 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2015 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study to Evaluate the Safety of 3 New 6:2 Influenza Virus Reassortants in Adults for the 2015-2016 Season

NCT02473510
View directory record Official record
Conditions
Influenza, Healthy
Interventions
Trivalent Influenza Vaccine, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 49 Years
Enrollment
301 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
3
States / cities
South Miami, Florida • Stockbridge, Georgia • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 27, 2016 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Phase 2 Safety and Immunogenicity Study for an Anthrax Vaccine Using 3 Schedules and Two Dose Levels

NCT01770743
View directory record Official record
Conditions
Anthrax
Interventions
AV7909, BioThrax
Biological
Lead sponsor
Emergent BioSolutions
Industry
Eligibility
18 Years to 50 Years
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
4
States / cities
Miami, Florida • Mt. Pleasant, South Carolina • New Braunfels, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2024 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study of Novel Types 1 and 3 Oral Poliomyelitis Vaccines

NCT04529538
View directory record Official record
Conditions
Poliomyelitis
Interventions
Novel Oral Polio Vaccine Type 1 (nOPV1), Novel Oral Polio Vaccine Type 3 (nOPV3), Sabin Monovalent Oral Polio Vaccine Type 1 (mOPV1), Sabin Monovalent Oral Polio Vaccine Type 3 (mOPV3)
Biological
Lead sponsor
PATH
Other
Eligibility
18 Years to 45 Years
Enrollment
226 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
Baltimore, Maryland • Lebanon, New Hampshire • Chapel Hill, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2024 · Synced Sep 1, 2026, 10:42 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Detoxified J5 Core Glycolipid/ Group B Meningococcal Outer Membrane Protein Vaccine for Gram-negative Bacterial Sepsis Administered With and Without Synthetic CPG Oligodeoxynucleotide 7909 Adjuvant

NCT01164514
View directory record Official record
Conditions
Bacterial Sepsis
Interventions
CPG 7909, J5-OMP Vaccine, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 30, 2014 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

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

NCT03014310
View directory record Official record
Conditions
Avian Influenza
Interventions
AS03, MF59, 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
388 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
7
States / cities
Atlanta, Georgia • Baltimore, Maryland • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2024 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 3 Interventional Results available

A Study of Lebrikizumab (LY3650150) on Vaccine Response in Adults With Atopic Dermatitis (ADopt-VA)

NCT04626297
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Lebrikizumab, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 55 Years
Enrollment
254 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
85
States / cities
Birmingham, Alabama • Hot Springs, Arkansas • North Little Rock, Arkansas + 67 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Trial To Evaluate The Safety, Tolerability, And Immunogenicity Of A Multivalent Group B Streptococcus Vaccine In Healthy Nonpregnant Women And Pregnant Women And Their Infants

NCT03765073
View directory record Official record
Conditions
Group B Streptococcus Infections
Interventions
Multivalent Group B streptococcus vaccine, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
0 Years to 40 Years
Enrollment
1,208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
26
States / cities
Mobile, Alabama • Phoenix, Arizona • Lancaster, California + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 4, 2025 · Synced Sep 1, 2026, 10:42 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 1, 2026, 10:42 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Clostridium Difficile Vaccine Efficacy Trial

NCT03090191
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 12, 2023 · Synced Sep 1, 2026, 10:42 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

NasoShield Study of Safety and Immunogenicity

NCT03352466
View directory record Official record
Conditions
Healthy Volunteers
Interventions
NasoShield, BioThrax, Placebo
Biological · Other
Lead sponsor
Altimmune, Inc.
Industry
Eligibility
18 Years to 49 Years
Enrollment
145 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
2
States / cities
Melbourne, Florida • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 23, 2025 · Synced Sep 1, 2026, 10:42 AM 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 Sep 1, 2026, 10:42 AM EDT