Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 3:19 AM EDT

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

Showing 25–48 of 98 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Tdap Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Pertussis Vaccine in Healthy Pregnant Women

NCT00707148
View directory record Official record
Conditions
Diphtheria, Pertussis, Tetanus
Interventions
Placebo, Tetanus toxoid, reduced diphtheria toxoid and acellular pertussis vaccine adsorbed
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 45 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
4
States / cities
Durham, North Carolina • Houston, Texas • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 25, 2014 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment, Feedback, Incentive, Exchange (AFIX OB) A Customizable Quality Improvement Intervention to Increase Maternal Vaccine Uptake

NCT04678271
View directory record Official record
Conditions
Influenza, Whooping Cough
Interventions
AFIX-OB Quality Improvement Package
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vaccine Acceptance in Pregnant Minority Women

NCT01740310
View directory record Official record
Conditions
Pregnancy
Interventions
Maternal Vaccine Education
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
4
States / cities
Atlanta, Georgia • Decatur, Georgia • Riverdale, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 9, 2015 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 1 Interventional

Teen Depression Awareness Project (TDAP)

NCT00099827
View directory record Official record
Conditions
Depression
Interventions
Education
Behavioral
Lead sponsor
RAND
Other
Eligibility
13 Years to 17 Years
Enrollment
368 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
8
States / cities
Los Angeles, California • San Fernando, California • Washington D.C., District of Columbia + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2011 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 1 Interventional Results available

Study Evaluating Safety And Tolerability Of Meningococcal B Rlp2086 Vaccine In Healthy Adults

NCT00879814
View directory record Official record
Conditions
Meningitis, Meningococcal
Interventions
rLP2086 vaccine or control
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 40 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
South Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 6, 2015 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Intervention Promoting HPV Vaccination in Safety-net Clinics

NCT01729429
View directory record Official record
Conditions
Human Papilloma Virus-Related Cervical Carcinoma
Interventions
HPV brochure, recall, reminders, General Adolescent Vaccine Brochure
Behavioral
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
11 Years to 18 Years · Female only
Enrollment
831 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 3 Interventional Results available

Long-Term PF-06651600 for the Treatment of Alopecia Areata

NCT04006457
View directory record Official record
Conditions
Alopecia Areata
Interventions
PF-06651600, Tetanus and diphtheria toxoids and acellular pertussis (Tdap) vaccine, Meningococcal (groups A, C, W-135 and Y [ACWY]) oligosaccharide diphtheria CRM197 conjugate vaccine
Drug · Biological
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
1,057 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
47
States / cities
Birmingham, Alabama • Beverly Hills, California • Irvine, California + 28 more
Source: ClinicalTrials.gov public record
Updated Apr 9, 2026 · Synced Oct 19, 2026, 3:19 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Rates of Pertussis Disease Among Persons Receiving Pentacel® or Other Pertussis Vaccines

NCT01129362
View directory record Official record
Conditions
Pertussis
Interventions
Pentacel® (DTaP-IPV/Hib), Other Pertussis Vaccines
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
Up to 59 Months
Enrollment
1,195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
2
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 25, 2022 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety of Simultaneous mRNA COVID-19 Vaccine With Other Childhood Vaccines in Young Children

NCT06038617
View directory record Official record
Conditions
Fever After Vaccination, Fever, Seizures Fever
Interventions
mRNA COVID-19 Vaccine, Routine Childhood Vaccinations
Biological
Lead sponsor
Duke University
Other
Eligibility
6 Months to 4 Years
Enrollment
347 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
5
States / cities
Oakland, California • Atlanta, Georgia • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety of a Quadrivalent Meningococcal Conjugate Vaccine When Administered Concomitantly With Routine Pediatric Vaccines in Healthy Infants and Toddlers in the US

NCT03537508
View directory record Official record
Conditions
Healthy Volunteers (Meningococcal Infection)
Interventions
MenACYW conjugate vaccine, MenACYW-135 conjugate vaccine, DTaP-IPV//Hib vaccine, Pneumococcal 13-valent conjugate vaccine, Pentavalent rotavirus vaccine, Hepatitis B vaccine, Measles, mumps, rubella (MMR) vaccine, Varicella vaccine, Hepatitis A vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
42 Days to 89 Days
Enrollment
2,627 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
65
States / cities
Birmingham, Alabama • Dothan, Alabama • Phoenix, Arizona + 54 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2024 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of DAPTACEL® as 5th Dose in Children 4 to 6 Years Old After 4 Doses of Pentacel™ or DAPTACEL®

NCT00258895
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 14, 2016 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Pentavalent DTaP-Hep B-IPV

NCT00133445
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 7, 2011 · Synced Oct 19, 2026, 3:19 AM EDT
Not yet recruiting No phase listed Observational

TDAP in Burn Patients (Group 2)

NCT07223684
View directory record Official record
Conditions
Sepsis, Burn Injury, Wound Healing, Critical Illness, Multiple Organ Dysfunction Syndrome
Interventions
Observational Cohort (No Intervention)
Other
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
18 Years to 80 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
Tampa, Florida • Atlanta, Georgia • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Oct 19, 2026, 3:19 AM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Tdap and Biomarkers of Alzheimer's Disease

NCT05183516
View directory record Official record
Conditions
Alzheimer Disease, Late Onset
Interventions
tetanus toxoid, reduced diphtheria toxoid and acellular pertussis vaccine
Biological
Lead sponsor
Mindful Diagnostics and Therapeutics, LLC
Industry
Eligibility
50 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Eau Claire, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 25, 2022 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 4 Interventional Results available

Tdap Vaccine in Post-Partum Women

NCT01711645
View directory record Official record
Conditions
Diphtheria, Pertussis, Tetanus
Interventions
Tetanus toxoid, reduced diphtheria toxoid and acellular pertussis vaccine adsorbed onto aluminum phosphate
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 5, 2017 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 2 Interventional

Ibrutinib as an Immune Modulating Agent for Patients With Asymptomatic, High-risk CLL/SLL Risk Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

NCT02518555
View directory record Official record
Conditions
Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma
Interventions
Diphtheria Toxoid/Tetanus Toxoid/Acellular Pertussis Vaccine Adsorbed, Ibrutinib, Laboratory Biomarker Analysis, Pharmacological Study, Pneumococcal 13-valent Conjugate Vaccine, Quality-of-Life Assessment, Trivalent Influenza Vaccine
Biological · Drug · Other
Lead sponsor
Jennifer Woyach
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Text and Talk: A Multi-level Intervention to Increase Provider HPV Vaccine Recommendation Effectiveness

NCT05006833
View directory record Official record
Conditions
HPV
Interventions
Brief Provider Training - Bundled Approach, Brief Provider Training - Benefits Approach, Parent Interactive Text Message - Bundled Approach, Parent Interactive Text Message - Benefits Approach
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
10 Years and older
Enrollment
8,043 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Comparison of GSK Biologicals' DTaP-IPV Candidate Vaccine to DTaP and IPV Separately Administered Vaccines in Terms of Immune Response and Safety

NCT00263692
View directory record Official record
Conditions
Diphtheria, Acellular Pertussis, Tetanus
Interventions
Prophylaxis: Diphtheria, tetanus, pertussis, poliovirus type 1, type 2 and type 3
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
4 Years to 6 Years
Enrollment
401 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
15
States / cities
Jonesboro, Arkansas • Fountain Valley, California • Oakland, California + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2016 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate Safety and Immune Response of Novartis Meningococcal ACWY Vaccine In Infants

NCT00474526
View directory record Official record
Conditions
Meningitis, Meningococcal
Interventions
Meningococcal ACWY Conjugate Vaccine, DTaP-IPV-HBV, Hib, Rotavirus, Pneumococcal 7-valent Conjugate Vaccine, HAV, MMR-V, DTaP
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
2 Months to 2 Months
Enrollment
4,545 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
53
States / cities
Bessemer, Alabama • Birmingham, Alabama • Downey, California + 43 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2014 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Follow-up Study to Describe the Safety of Study Participants Who Received RSVPreF3 Maternal Vaccination (Any Dose) or Controls From Previous RSV MAT Studies During Any Pregnancy Conceived Post Vaccination/Control

NCT05705440
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
RSVPreF3 vaccine, Control
Biological · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
9 Years to 49 Years · Female only
Enrollment
3,855 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
27
States / cities
Mobile, Alabama • Phoenix, Arizona • Tucson, Arizona + 21 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Oct 19, 2026, 3:19 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

A Study to Learn About a COVID-19 Vaccine in Healthy Adults 18 Through 64 Years of Age

NCT07730450
View directory record Official record
Conditions
COVID-19 Vaccines
Interventions
BNT162b2 Vaccine, Tdap Vaccine
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years to 64 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
5
States / cities
Walnut Creek, California • Miami Lakes, Florida • Honolulu, Hawaii + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

4 Pillars Toolkit for Adolescent Vaccination

NCT02165722
View directory record Official record
Conditions
Adolescent HPV Vaccine, Adolescent Influenza Vaccine
Interventions
4 Pillars Toolkit
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
11 Years to 17 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 28, 2018 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of a Vaccine Against Respiratory Syncytial Virus (RSV) When Given Alone and Together With a Vaccine Against Diphtheria, Pertussis and Tetanus (Tdap) Viruses Followed by a 2nd Dose of the RSV Vaccine to Healthy Non-Pregnant Women

NCT04138056
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
RSVPreF3 formulation 3, RSVPreF3 formulation 2, Boostrix-ex-US, Boostrix-US, Placebo
Biological · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
509 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
4
States / cities
Miami, Florida • Lenexa, Kansas • Rochester, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2024 · Synced Oct 19, 2026, 3:19 AM EDT
Completed Not applicable Interventional

Study of Adolescent Immunization Recall Systems

NCT01390363
View directory record Official record
Conditions
Immunization, Reminder Systems
Interventions
Parent Only Phone Call, Parent and Adolescent Phone Call
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
13 Years to 17 Years · Female only
Enrollment
420 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 13, 2017 · Synced Oct 19, 2026, 3:19 AM EDT