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ClinicalTrials.gov public records Last synced Sep 21, 2026, 10:49 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Clostridium Clear all
Completed Phase 1 Interventional Results available

Safety Study of Intratumoral Injection of Clostridium Novyi-NT Spores to Treat Patients With Solid Tumors That Have Not Responded to Standard Therapies

NCT01924689
View directory record Official record
Conditions
Solid Tumor Malignancies
Interventions
Clostridium novyi-NT spores
Biological
Lead sponsor
BioMed Valley Discoveries, Inc
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
5
States / cities
St Louis, Missouri • New York, New York • The Bronx, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2019 · Synced Sep 21, 2026, 10:49 PM EDT
Not listed No phase listed Observational

Immune Response to C.Difficile Infection

NCT02797288
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Not listed
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 5, 2023 · Synced Sep 21, 2026, 10:49 PM EDT
Not listed Not applicable Interventional

Vitamin A Supplementation in Preterm Infants

NCT00063596
View directory record Official record
Conditions
Infant, Premature
Interventions
Vitamin A supplementation
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
1 Day to 3 Days
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 21, 2026, 10:49 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Descriptive, Post-marketing, Passive Surveillance Safety Study of ADACEL™ Vaccine

NCT00258882
View directory record Official record
Conditions
Pertussis
Interventions
Tetanus Toxoid, acellular pertussis, diphtheria toxoid
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
Not listed
Enrollment
327,293 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
3
States / cities
Oakland, California • Aurora, Colorado • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Sep 21, 2026, 10:49 PM EDT
Withdrawn Not applicable Interventional

Extended Treatment With Vancomycin for Clostridium Difficile Colitis

NCT00861887
View directory record Official record
Conditions
Clostridium Difficile Colitis
Interventions
Standard Vancomycin, Extended Vancomycin
Drug
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 13, 2016 · Synced Sep 21, 2026, 10:49 PM EDT
Enrolling by invitation Phase 1 Interventional

Fecal Microbiome Transplant

NCT02636517
View directory record Official record
Conditions
Clostridium Difficile, Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis
Interventions
Fecal Microbiota Transplant
Biological
Lead sponsor
Judith Kelsen
Other
Eligibility
3 Years to 21 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 21, 2026, 10:49 PM EDT
Active, not recruiting Phase 2Phase 3 Interventional

LMN-201 for Prevention of C. Difficile Infection Recurrence

NCT05330182
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
LMN-201, Placebo
Drug
Lead sponsor
Lumen Bioscience, Inc.
Industry
Eligibility
18 Years and older
Enrollment
375 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
15
States / cities
Escondido, California • Hamden, Connecticut • Tampa, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 21, 2026, 10:49 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Studies of In Vitro B Lymphocyte Responses in Subjects Receiving Tetanus Toxoid Booster Immunization

NCT00001173
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1980 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 21, 2026, 10:49 PM EDT
Completed Phase 4 Interventional Results available

Use of Santyl in Diabetic Foot Ulcers

NCT02581488
View directory record Official record
Conditions
Diabetic Foot, Foot Ulcer, Diabetic
Interventions
Santyl, Product containing silver
Biological · Other
Lead sponsor
Smith & Nephew, Inc.
Industry
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
11
States / cities
Sylmar, California • Melbourne, Florida • Baltimore, Maryland + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2018 · Synced Sep 21, 2026, 10:49 PM EDT
Completed Phase 2 Interventional Results available

The GRAFT Study: Gut RecolonizAtion by Fecal Transplantation

NCT03621657
View directory record Official record
Conditions
Clostridium Difficile Infection, C.Difficile Diarrhea, CDI
Interventions
Low Dose FMT Capsule DE, Single Dose FMT Capsule DE, Placebo oral capsule
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 14, 2021 · Synced Sep 21, 2026, 10:49 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 21, 2026, 10:49 PM EDT
Completed Phase 2 Interventional Results available

ICON-2: FMT and Bezlotoxumab Compared to FMT and Placebo for Patients With IBD and CDI

NCT03829475
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Clostridium Difficile Infection
Interventions
Bezlotoxumab, Placebo, Fecal Microbiota Transplantation
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Sep 21, 2026, 10:49 PM EDT
Not listed Phase 1 Interventional

Fecal Transplant for Pediatric Patients Who Have Recurrent C-diff Infection

NCT02134392
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Fecal Microbiota Transplantation
Biological
Lead sponsor
Jonathan Gisser
Other
Eligibility
2 Years to 21 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 28, 2023 · Synced Sep 21, 2026, 10:49 PM EDT
Completed Phase 3 Interventional

A Study of GT267-004 Versus Vancomycin and GT267-004 Versus Metronidazole in Patients With C.Difficile - Associated Diarrhea

NCT00106509
View directory record Official record
Conditions
Clostridium Enterocolitis, Pseudomembranous Colitis
Interventions
tolevamer potassium-sodium (GT267-004)
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
99
States / cities
Phoenix, Arizona • Rogers, Arkansas • Burbank, California + 81 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2015 · Synced Sep 21, 2026, 10:49 PM EDT
Recruiting Not applicable Interventional

Fecal Microbiota Transplantation for C Diff Infection

NCT01905709
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Human fecal matter
Biological
Lead sponsor
Englewood Hospital and Medical Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
1
States / cities
Englewood, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 12, 2025 · Synced Sep 21, 2026, 10:49 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of Tdap Vaccinations for Plasma Donors

NCT05662852
View directory record Official record
Conditions
Tetanus, Diphtheria and Acellular Pertussis Vaccination
Interventions
Tdap
Biological
Lead sponsor
ABO Holdings, Inc.
Industry
Eligibility
18 Years to 63 Years
Enrollment
107 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Glassboro, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 21, 2026, 10:49 PM EDT
Recruiting Phase 2 Interventional

Alanyl-glutamine Supplementation for C. Difficile Treatment (ACT)

NCT04305769
View directory record Official record
Conditions
Clostridioides Difficile Infection, Clostridium Difficile Infection, Clostridium Difficile Diarrhea, Clostridia Difficile Colitis
Interventions
Alanyl-glutamine
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 105 Years
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
2
States / cities
Charlottesville, Virginia • Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Sep 21, 2026, 10:49 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Post-marketing Safety Study of GSK Biologicals' Boostrix® Vaccine

NCT00297856
View directory record Official record
Conditions
Diphtheria, Tetanus, Acellular Pertussis
Interventions
Boostrix®, Td (Tetanus diphtheria) vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
10 Years to 18 Years
Enrollment
10,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2014 · Synced Sep 21, 2026, 10:49 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 21, 2026, 10:49 PM EDT
Terminated Phase 1 Interventional

One Time Injection of Bacteria to Treat Solid Tumors That Have Not Responded to Standard Therapy

NCT00358397
View directory record Official record
Conditions
Tumors
Interventions
Clostridium novyi-NT spores
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 13, 2016 · Synced Sep 21, 2026, 10:49 PM EDT
Active, not recruiting Phase 2 Interventional

Autologous Fecal Microbiota Transplantation (Auto-FMT) for Prophylaxis of Clostridium Difficile Infection in Recipients of Allogeneic Hematopoietic Stem Cell Transplantation

NCT02269150
View directory record Official record
Conditions
Allogeneic Hematopoietic Stem Cell
Interventions
fecal microbiota transplantation (FMT), No fecal microbiota transplantation (FMT), routine management
Biological · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 16, 2025 · Synced Sep 21, 2026, 10:49 PM EDT
Recruiting Not applicable Interventional

Lifestyle and Recurrent Clostridioides Difficile Infection (CDI)

NCT07613645
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
Health counseling sessions, Diet (control diet), Diet (experimental diet)
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 21, 2026, 10:49 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Canadian Manufactured Tetanus and Diphtheria Toxoids Adsorbed (Td) Vaccine Compared With U.S. Manufactured Td

NCT00601835
View directory record Official record
Conditions
Diphtheria, Tetanus
Interventions
Tetanus and Diphtheria Toxoids Adsorbed (Td) Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
11 Years to 60 Years
Enrollment
3,651 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
2
States / cities
Oakland, California • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Sep 21, 2026, 10:49 PM EDT
Completed Not applicable Interventional

Dietary Optimization of Microbiome Recovery Following Fecal Microbiota Transplantation

NCT05826418
View directory record Official record
Conditions
Recurrent Clostridium Difficile Infection, Fecal Microbiota Transplant
Interventions
MEND diet, mNICE diet
Dietary Supplement
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 11, 2025 · Synced Sep 21, 2026, 10:49 PM EDT