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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Clostridium Infection Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Descriptive, Open-label, Multicenter Study of the Safety of Redosing With ADACEL® Vaccine

NCT00347958
View directory record Official record
Conditions
Tetanus, Diphtheria, Pertussis
Interventions
Tetanus-diphtheria-acellular pertussis (Tdap) vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
15 Years to 69 Years
Enrollment
545 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
4
States / cities
Jonesboro, Arkansas • Bossier City, Louisiana • University Heights, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2013 · Synced Sep 25, 2026, 9:01 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Evaluation of GeoHAI Implementation

NCT05612672
View directory record Official record
Conditions
Clostridioides Difficile Infection, Healthcare Associated Infection
Interventions
GeoHAI
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Antibiotics on Enteric Neurons and Glia

NCT05834036
View directory record Official record
Conditions
Antibiotic Enterocolitis
Interventions
Amoxicillin Oral Capsule
Drug
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 4 Interventional

Animal-Assisted Visitation Program Chlorhexidine Trial

NCT04171817
View directory record Official record
Conditions
Methicillin-resistant Staphylococcus Aureus, Clostridium Difficile, Pseudomonas Aeruginosa
Interventions
Chlorhexidine
Drug
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
3 Years to 17 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
3
States / cities
Baltimore, Maryland • St Louis, Missouri • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 25, 2026, 9:01 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Creation of an E-toileting Log Through Classification of the Physical Properties of Stool and Urine Using TrueLoo™

NCT05008640
View directory record Official record
Conditions
Urinary Tract Infections, Infectious Diarrhea, Clostridium Difficile Infection, Gastrointestinal Disease, GastroIntestinal Bleeding
Interventions
TrueLoo™
Device
Lead sponsor
Toi Labs, Inc.
Industry
Eligibility
55 Years and older
Enrollment
143 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
6
States / cities
Concord, California • Davis, California • Elk Grove, California + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 16, 2021 · Synced Sep 25, 2026, 9:01 PM EDT
Terminated Phase 2 Interventional Results available

Immunotherapy Targeted Against Cytomegalovirus in Patients With Newly-Diagnosed WHO Grade IV Unmethylated Glioma

NCT03927222
View directory record Official record
Conditions
Glioblastoma
Interventions
Human CMV pp65-LAMP mRNA-pulsed autologous DCs containing GM CSF, Temozolomide, Tetanus-Diphtheria Toxoid (Td), GM-CSF, 111-Indium-labeling of Cells for in vivo Trafficking Studies
Biological · Drug
Lead sponsor
Mustafa Khasraw, MBChB, MD, FRCP, FRACP
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 7, 2024 · Synced Sep 25, 2026, 9:01 PM EDT
Terminated Phase 3 Interventional

A Study to Assess the Safety, Tolerability, Effectiveness and Absorption of Exodif™ Tablets in Clostridium Difficile-associated Diarrhea

NCT00466635
View directory record Official record
Conditions
Enterocolitis, Pseudomembranous, Diarrhea, Clostridium Difficile
Interventions
GT267-004 (tolevamer potassium sodium)
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
13
States / cities
Modesto, California • Honolulu, Hawaii • Maywood, Illinois + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2015 · Synced Sep 25, 2026, 9:01 PM EDT
Completed No phase listed Observational

The Role of Mucosal Microbiome in Recurrence of Clostridioides Difficile Infection

NCT04675723
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 17, 2023 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Persistence Study of GSK Biologicals' Tdap Vaccine 1, 3, 5 and 9 Years Following Administration as an Initial Single Dose in Healthy Young Adults and to Evaluate the Immunogenicity and Safety of Boostrix as a Second Dose of Tdap, When Administered at Year 9

NCT00489970
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 Sep 25, 2026, 9:01 PM EDT
Terminated Phase 2 Interventional Results available

Penn Microbiome Therapy for Recurrent Clostridium Difficile Infection

NCT03973697
View directory record Official record
Conditions
Recurrent Clostridium Difficile Infection
Interventions
Penn Microbiome Therapy - 001, Penn Microbiome Therapy - 002, Penn Microbiome Therapy - 003
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 31, 2023 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A STUDY OF A RSV VACCINE WHEN GIVEN TOGETHER WITH TDAP IN HEALTHY NONPREGNANT WOMEN AGED BETWEEN 18 TO 49 YEARS

NCT04071158
View directory record Official record
Conditions
Respiratory Tract Infection
Interventions
RSV Vaccine, Tdap, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 49 Years · Female only
Enrollment
713 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
16
States / cities
Stockbridge, Georgia • Honolulu, Hawaii • Wichita, Kansas + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 14, 2021 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 2 Interventional Results available

Study of CB-183,315 in Participants With Clostridium Difficile Infection

NCT01085591
View directory record Official record
Conditions
Clostridium Difficile Infection, Diarrhea
Interventions
CB-183,315, Placebo, Vancomycin
Drug
Lead sponsor
Cubist Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years and older
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
22
States / cities
Washington D.C., District of Columbia • Saint Cloud, Florida • Decatur, Georgia + 17 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2018 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 2 Interventional Results available

Efficacy of Oral Vancomycin Prophylaxis for Prevention of Recurrent Clostridium Difficile Infection

NCT03462459
View directory record Official record
Conditions
Recurrent Clostridium Difficile Infection, Clostridium Difficile Infection, CDI, C.Difficile Diarrhea, C. Diff Colitis, C.Difficile Colitis
Interventions
Vancomycin, Placebo
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 24, 2025 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety, Tolerability, and Immunogenicity of a Clostridium Difficile Toxoid Vaccine in Healthy Elderly Volunteers

NCT00214461
View directory record Official record
Conditions
Clostridium Infections
Interventions
Vaccine diluent buffer (Placebo), C. difficile toxoid vaccine (2 µg), C. difficile toxoid vaccine (10 µg), C. difficile toxoid vaccine (50 µg)
Biological
Lead sponsor
Sanofi
Industry
Eligibility
65 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
2
States / cities
Orlando, Florida • Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 10, 2012 · Synced Sep 25, 2026, 9:01 PM EDT
Terminated Not applicable Interventional

To Evaluate the Impact of SBI on C. Difficile in Hospitalized UC Patients

NCT02730325
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Serum-derived bovine immunoglobulin/protein isolate (SBI), Placebo
Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
3
States / cities
Miami, Florida • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 17, 2021 · Synced Sep 25, 2026, 9:01 PM EDT
Recruiting Phase 2 Interventional

Stool Transplants to Treat Refractory Clostridium Difficile Colitis

NCT02127398
View directory record Official record
Conditions
Clostridium Difficile Colitis
Interventions
fecal microbiota
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 25, 2026, 9:01 PM EDT
Active, not recruiting No phase listed Observational

REMBRANDT: REcovery of the MicroBiome fRom Antibiotics for Dental implanTs

NCT05622721
View directory record Official record
Conditions
Dysbiosis, Clostridium Difficile, Pet-Human Bonding, Antibiotic-Associated Colitis
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 2 Interventional Results available

Evaluation of CRS3123 vs. Oral Vancomycin in Adult Patients With Clostridioides Difficile Infection

NCT04781387
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
CRS3123, Active Comparator
Drug
Lead sponsor
Crestone, Inc
Industry
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
18
States / cities
Fullerton, California • Lancaster, California • Mission Hills, California + 14 more
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 25, 2026, 9:01 PM 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 13, 2016 · Synced Sep 25, 2026, 9:01 PM EDT
Completed No phase listed Observational

Response of Clostridium Difficile Infection to Metronidazole Therapy

NCT00304369
View directory record Official record
Conditions
Clostridium Enterocolitis, Pseudomembranous Colitis, Antibiotic-Associated Colitis
Interventions
Metronidazole
Drug
Lead sponsor
Michael E. DeBakey VA Medical Center
Federal
Eligibility
18 Years to 64 Years
Enrollment
290 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 17, 2013 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 3 Interventional Results available

PAR-101/OPT-80 Versus Vancomycin for the Treatment of Clostridium Difficile-Associated Diarrhea (CDAD)

NCT00468728
View directory record Official record
Conditions
Clostridium Infections, Diarrhea
Interventions
PAR-101/OPT-80, Vancomycin
Drug
Lead sponsor
Optimer Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
16 Years and older
Enrollment
535 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
53
States / cities
Gadsden, Alabama • Phoenix, Arizona • Hot Springs, Arkansas + 50 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2017 · Synced Sep 25, 2026, 9:01 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Study of a Candidate Clostridium Difficile Toxoid Vaccine in Subjects at Risk for C. Difficile Infection

NCT01887912
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
C. difficile Toxoid Vaccine, Placebo: 0.9% normal saline
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
50 Years and older
Enrollment
9,302 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
142
States / cities
Huntsville, Alabama • Mobile, Alabama • Flagstaff, Arizona + 124 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2022 · Synced Sep 25, 2026, 9:01 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Stool Transplant in Pediatric Patients With Recurring C. Difficile Infection

NCT01972334
View directory record Official record
Conditions
Clostridium Difficile Colitis
Interventions
FMT, placebo
Biological
Lead sponsor
MemorialCare Health System
Other
Eligibility
1 Year to 21 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 31, 2016 · Synced Sep 25, 2026, 9:01 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vaginal and Rectal Clostridial Carriage Among Women of Reproductive Age in the United States

NCT01283828
View directory record Official record
Conditions
Clostridium Sordellii, Clostridium Perfringens
Interventions
Not listed
Lead sponsor
Gynuity Health Projects
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
4,977 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
18
States / cities
Montgomery, Alabama • Tucson, Arizona • Boulder, Colorado + 13 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2013 · Synced Sep 25, 2026, 9:01 PM EDT