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ClinicalTrials.gov public records Last synced May 21, 2026, 11:54 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 82 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Diphtheria Clear all
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Diphtheria, Hepatitis B, Poliomyelitis, Pertussis, Tetanus
Interventions
DTaP-Hep B-IPV Vaccine, Monovalent Hep B Vaccine, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 5 Days
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Nov 6, 2011 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Tetanus, Acellular Pertussis, Diphtheria, Diphtheria-Tetanus-acellular Pertussis Vaccines
Interventions
Boostrix®, Decavac™
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
65 Years and older
Enrollment
1,332 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
24
States / cities
Tucson, Arizona • Los Angeles, California • DeLand, Florida + 21 more
Source: ClinicalTrials.gov public record
Updated Jan 2, 2020 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Innate Inflammatory Response, Vaccination, Diphtheria, Tetanus, Environmental Exposure, Vaccine, Antibodies, Adult, Immunity, Pollution; Exposure
Interventions
TENIVAC
Biological
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 89 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Paulsboro, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 29, 2025 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Diphtheria, Polio, Pertussis
Interventions
DAPTACEL®. (DTaP), IPOL®., and ActHIB®., Pentacel®: DTaP-IPV/Hib combined, DTaP-IPV and ActHIB®
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
42 Days to 89 Days
Enrollment
2,167 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
36
States / cities
Tuscaloosa, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 29 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2014 · Synced May 21, 2026, 11:54 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available
View directory record Official record
Conditions
Whooping Cough
Interventions
Safety assessment following routine immunization with Boostrix
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
Female only
Enrollment
65,783 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Meningitis, Meningococcemia
Interventions
Meningococcal Polysaccharide Diphtheria Toxoid Conjugate
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
13 Years to 21 Years
Enrollment
241 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
9
States / cities
Atlanta, Georgia • Marietta, Georgia • Woburn, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2014 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Meningococcal Meningitis, Meningococcal Infections
Interventions
Test Vaccine, US Licensed Vaccine
Biological
Lead sponsor
JN-International Medical Corporation
Industry
Eligibility
18 Years to 55 Years
Enrollment
525 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
3
States / cities
Greenbelt, Maryland • Pasadena, Maryland • Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 22, 2015 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Pregnancy
Interventions
Tetanus, Diphtheria, and Pertussis Vaccine, 2016-2017 Quadrivalent Inactivated Influenza Vaccine, 2017-2018 Quadrivalent Inactivated Influenza Vaccine
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
3
States / cities
Atlanta, Georgia • Durham, North Carolina • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 27, 2025 · Synced May 21, 2026, 11:54 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Pre-Eclampsia, Diphtheria, Tetanus and Pertussis Vaccine Reaction
Interventions
Tdap Vaccine Administration
Drug
Lead sponsor
Institute of Arthritis Research
Other
Eligibility
18 Years to 42 Years · Female only
Enrollment
1,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Idaho Falls, Idaho
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Tetanus, Acellular Pertussis, Diphtheria
Interventions
SB213503 lot 1, SB213503 lot 2, SB213503 lot 3, Infanrix, IPOL, M-M-R II
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
4 Years to 6 Years
Enrollment
4,209 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
24
States / cities
Little Rock, Arkansas • Antioch, California • Daly City, California + 20 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced May 21, 2026, 11:54 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available
View directory record Official record
Conditions
Meningitis, Meningococcal Disease
Interventions
None administered in this study
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
Not listed
Enrollment
62,626 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2013
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Apr 18, 2016 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Acellular Pertussis, Tetanus, Diphtheria
Interventions
Taking of blood samples, Boostrix, Adacel
Procedure · Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
28 Years to 73 Years
Enrollment
1,954 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2016
U.S. locations
37
States / cities
Huntsville, Alabama • Chandler, Arizona • Mesa, Arizona + 31 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2020 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Group B Streptococcus Infections
Interventions
Multivalent Group B streptococcus vaccine, Tetanus, diphtheria, and acellular pertussis vaccine, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 49 Years · Female only
Enrollment
306 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
12
States / cities
Newton, Kansas • Omaha, Nebraska • Las Vegas, Nevada + 8 more
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Meningitis, Meningococcal Infection, Neisseria Meningitidis
Interventions
Menactra®: Meningococcal Polysaccharide Diphtheria Conjugate
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
2 Years to 10 Years
Enrollment
333 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
15
States / cities
Jonesboro, Arkansas • Little Rock, Arkansas • Boca Raton, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Acellular Pertussis, Diphtheria, Tetanus
Interventions
Boostrix™, ADACEL®
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
19 Years to 64 Years
Enrollment
2,337 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
42
States / cities
Huntsville, Alabama • Chandler, Arizona • Mesa, Arizona + 36 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2018 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Pneumococcal Immunisation, Diphtheria Immunisation, Tetanus Immunisation, Pertussis Immunisation, Hepatitis B Immunisation, Haemophilus Influenzae Type b Immunisation, Polio Immunisation, Measles Immunisation, Rubella Immunisation, Varicella Immunisation, Mumps Immunisation
Interventions
Pneumococcal Conjugate Vaccine formulation 1, Pneumococcal Conjugate Vaccine formulation 2, Pneumococcal Conjugate Vaccine formulation 3, Varicella Virus Vaccine Live, Measles, Mumps, and Rubella Virus Vaccine Live, Pneumococcal 13-valent Conjugate Vaccine [Diphtheria CRM197 Protein], Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Inactivated Poliovirus and Haemophilus b Conjugate (Tetanus Toxoid Conjugate), Rotavirus Vaccine, Live, Oral, Pentavalent, Hepatitis B Vaccine* [Recombinant] *as applicable
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
42 Days to 15 Months
Enrollment
852 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
49
States / cities
Jonesboro, Arkansas • Bellflower, California • Huntington Park, California + 41 more
Source: ClinicalTrials.gov public record
Updated Sep 7, 2025 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Diphtheria, Tetanus, Pertussis
Interventions
DAPTACEL®: DTaP
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
4 Years to 6 Years
Enrollment
649 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
22
States / cities
Fayetteville, Arkansas • Jonesboro, Arkansas • Little Rock, Arkansas + 18 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced May 21, 2026, 11:54 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Influenza, Tetanus, Diphtheria, Pertussis, Pneumonia
Interventions
Modified clinical reminders
Other
Lead sponsor
Atlanta VA Medical Center
Federal
Eligibility
Not listed
Enrollment
67,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 9, 2020 · Synced May 21, 2026, 11:54 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Meningococcal Meningitis, Meningococcal Infections
Interventions
NmVac4-A/C/Y/W-135-DT™
Biological
Lead sponsor
JN-International Medical Corporation
Industry
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 11, 2016 · Synced May 21, 2026, 11:54 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Diphtheria, Tetanus, Pertussis, Haemophilus Influenzae
Interventions
DTaP-IPV/Hib, Other DTap Vaccines
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Weeks to 24 Months · Male only
Enrollment
62,538 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2015
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Aug 18, 2015 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Healthy
Interventions
Tetanus and Diphtheria (Td) Vaccine
Biological
Lead sponsor
Biomat USA, Inc.
Industry
Eligibility
18 Years to 69 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
4
States / cities
Bellflower, California • Lincoln, Nebraska • Clarksville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2021 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Acellular Pertussis, Tetanus, Diphtheria
Interventions
Boostrix®, Menactra™
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
11 Years to 18 Years
Enrollment
1,344 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
24
States / cities
Chandler, Arizona • Little Rock, Arkansas • Fountain Valley, California + 18 more
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Diphtheria, Tetanus, Whooping Cough, Polio, Haemophilus Influenzae Type b
Interventions
DAPTACEL® (Diphtheria and Tetanus Toxoids and Acellular Pertussis vaccine), Pentacel: DTaP-IPV/Hib
Biological
Lead sponsor
Sanofi
Industry
Eligibility
42 Days to 84 Days
Enrollment
1,941 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2004
U.S. locations
26
States / cities
Fayetteville, AR 72703, Arkansas • Jonesboro, AR 72401, Arkansas • Little Rock, AR 72211, Arkansas + 23 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2012 · Synced May 21, 2026, 11:54 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Tetanus, Acellular Pertussis, Diphtheria
Interventions
GSK Biologicals'Kinrix®, Merck and Company's MMRII, Merck and Company's Varivax
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
4 Years to 6 Years
Enrollment
478 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
11
States / cities
Antioch, California • Daly City, California • Hayward, California + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced May 21, 2026, 11:54 PM EDT