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Showing 1–24 of 172 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Clostridium Difficile Infection Clear all
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 8, 2026, 9:13 AM EDT
Completed Phase 3 Interventional Results available

A Multi-center, Single-arm Trial Exploring the Safety and Clinical Effectiveness of RBX2660 Administered by Colonoscopy to Adults With Recurrent Clostridioides Difficile Infection

NCT05831189
View directory record Official record
Conditions
Clostridium Difficile Infection Recurrence
Interventions
RBX2660
Drug
Lead sponsor
Ferring Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
12
States / cities
North Little Rock, Arkansas • Camarillo, California • Hamden, Connecticut + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Sep 8, 2026, 9:13 AM 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 8, 2026, 9:13 AM EDT
Withdrawn Not applicable Interventional

Prospective Study of Clostridium Difficile in Children Undergoing Colonoscopy

NCT01472978
View directory record Official record
Conditions
C. Difficile Infection
Interventions
metronidazole
Drug
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
7 Years to 21 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 24, 2019 · Synced Sep 8, 2026, 9:13 AM 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 8, 2026, 9:13 AM EDT
Withdrawn Phase 4 Interventional

Addition of Lactobacillus to Metronidazole in Treatment of CDAD

NCT00304863
View directory record Official record
Conditions
Enterocolitis, Pseudomembranous Colitis, Antibiotic-associated Colitis
Interventions
Lactobacillus GG
Drug
Lead sponsor
Michael E. DeBakey VA Medical Center
Federal
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 9, 2017 · Synced Sep 8, 2026, 9:13 AM EDT
Completed Phase 1 Interventional

Fecal Microbiota Transplant for Relapsing Clostridium Difficile Infection in Adults and Children Using a Frozen Encapsulated Inoculum

NCT01914731
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal Microbiota Transplant
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
7 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 18, 2016 · Synced Sep 8, 2026, 9:13 AM EDT
Completed Phase 3 Interventional Results available

Microbiota Restoration Therapy for Recurrent Clostridium Difficile Infection (PUNCH CD3-OLS)

NCT03931941
View directory record Official record
Conditions
Clostridium Difficile Infection, Infection, Communicable Diseases
Interventions
RBX2660
Drug
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
793 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
46
States / cities
Phoenix, Arizona • North Little Rock, Arkansas • Oxnard, California + 43 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2024 · Synced Sep 8, 2026, 9:13 AM 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 8, 2026, 9:13 AM 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 8, 2026, 9:13 AM EDT
Recruiting Not applicable Interventional

Pre-emptive Prevention for Patients at High Risk for Hospital-onset Clostridioides Difficile

NCT05389904
View directory record Official record
Conditions
C. Difficile
Interventions
Arm 1: Routine care, Arm 2: Preemptive C. difficile infection prevention bundle
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 8, 2026, 9:13 AM EDT
Completed No phase listed Observational

Vancomycin vs. Nitazoxanide to Treat Recurrent C. Difficile Colitis

NCT00304889
View directory record Official record
Conditions
Clostridium Enterocolitis, Pseudomembranous Colitis, Antibiotic-Associated Colitis
Interventions
Not listed
Lead sponsor
Michael E. DeBakey VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 2, 2015 · Synced Sep 8, 2026, 9:13 AM 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 8, 2026, 9:13 AM EDT
Recruiting Phase 2Phase 3 Interventional

Enteral Vancomycin as Primary Prophylaxis Against Clostridioides Difficile Infection in Critically Ill Patients

NCT07221370
View directory record Official record
Conditions
Clostridium Difficile Infection, Vancomycin Resistant Enterococci Infection
Interventions
Vancomycin 125mg, Placebo
Drug
Lead sponsor
Riverside University Health System Medical Center
Other
Eligibility
18 Years and older
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Moreno Valley, California
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 8, 2026, 9:13 AM EDT
Terminated Phase 2 Interventional Results available

PROCLAIM -- Misoprostol in the Prevention of Recurrent CDI Prevent Recurrence of Clostridium Difficile Infection With Misoprostol

NCT03617172
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Misoprostol 100Mcg Tab, Placebo
Drug · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
3
States / cities
St Louis, Missouri • Chapel Hill, North Carolina • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 29, 2022 · Synced Sep 8, 2026, 9:13 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Fecal Transplant for Relapsing C. Difficile Infection

NCT01703494
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Fecal Microbiota Transplantation, Sham Fecal Microbiota Transplantation
Biological
Lead sponsor
Colleen Kelly
Other
Eligibility
18 Years to 75 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
2
States / cities
The Bronx, New York • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 30, 2015 · Synced Sep 8, 2026, 9:13 AM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy Study of VP20621 for Prevention of Recurrent Clostridium Difficile Infection

NCT01259726
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
VP20621, Placebo
Biological · Other
Lead sponsor
Shire
Industry
Eligibility
18 Years and older
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
42
States / cities
Modesto, California • Palm Desert, California • Sacramento, California + 39 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Sep 8, 2026, 9:13 AM 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 8, 2026, 9:13 AM EDT
Completed Phase 4 Interventional Results available

Screening to Prophylax Against Clostridium Difficile Infection -

NCT02996487
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Vancomycin, Placebo
Drug · Other
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
1,294 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
3
States / cities
Dearborn, Michigan • Royal Oak, Michigan • Troy, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 12, 2024 · Synced Sep 8, 2026, 9:13 AM EDT
Not yet recruiting Phase 1 Interventional

Xylitol Use for Decolonization of C. Difficile in Patients With IBD

NCT05852587
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Clostridioides Difficile Infection
Interventions
Xylitol, Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2033
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Sep 8, 2026, 9:13 AM EDT
Not listed Phase 2 Interventional

An Exploratory, Open-Label, Oligo-Center Study to Evaluate the Safety, Efficacy, and Pharmacokinetics of Intravenous DNV3837 in Subjects With Clostridium Difficile Infection

NCT03988855
View directory record Official record
Conditions
Clostridium Difficile (C. Difficile)
Interventions
DNV3837
Drug
Lead sponsor
Deinove
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
10
States / cities
Anniston, Alabama • Sacramento, California • Idaho Falls, Idaho + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 6, 2022 · Synced Sep 8, 2026, 9:13 AM EDT
Completed Phase 1 Interventional

Vancomycin for the Treatment of NAAT(+)/Toxin(-) C. Difficile

NCT03827447
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Vancomycin Oral Capsule, Placebo Oral Capsule
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 19, 2021 · Synced Sep 8, 2026, 9:13 AM EDT
Completed Phase 1 Interventional

Skin Cleansing With Chlorhexidine to Decrease Hospital Acquired Infections

NCT00130221
View directory record Official record
Conditions
Nosocomial Infection, Bacteremia, Sepsis, Pneumonia, Urinary Tract Infection, Clostridium Infection
Interventions
2% chlorhexidine gluconate impregnated cloth, Daily bathing with Bar soap
Drug · Other
Lead sponsor
Cook County Health
Government
Eligibility
16 Years and older
Enrollment
208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 17, 2023 · Synced Sep 8, 2026, 9:13 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Study of Different Formulations of a Clostridium Difficile Toxoid Vaccine Given at Three Different Schedules in Adults

NCT01230957
View directory record Official record
Conditions
Clostridium Difficile Infection, Diarrhea
Interventions
Clostridium difficile toxoids A and B (Low-dose with adjuvant), Clostridium difficile toxoids A and B (Low-dose without adjuvant), Clostridium difficile toxoids A and B (high-dose with adjuvant), Clostridium difficile toxoids A and B (high-dose without adjuvant), Placebo: 0.9% normal saline
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
40 Years to 75 Years
Enrollment
650 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
30
States / cities
Redding, California • Bristol, Connecticut • Stamford, Connecticut + 25 more
Source: ClinicalTrials.gov public record
Updated Jul 17, 2018 · Synced Sep 8, 2026, 9:13 AM EDT