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ClinicalTrials.gov public records Last synced Sep 27, 2026, 2:43 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Clostridioides Difficile Infection Clear all
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 27, 2026, 2:43 AM 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 27, 2026, 2:43 AM 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 27, 2026, 2:43 AM 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 27, 2026, 2:43 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 27, 2026, 2:43 AM EDT
Completed Phase 1 Interventional

An Open-Label, Pilot Clinical Trial To Test The Safety And Feasibility Of A Suspension of Freeze-dried Microbiota In Patients Undergoing Colon Resection

NCT06692179
View directory record Official record
Conditions
Recurrent Clostridioides Difficile Infection, Colonic Surgery
Interventions
Orally administered preparation of fecal microbiota (MTP-101P)
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 27, 2026, 2:43 AM EDT
Completed Phase 4 Interventional

Oral Vancomycin to Prevent Recurrent C Difficile Infection With Antibiotics

NCT03466502
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Oral Vancomycin
Drug
Lead sponsor
University of Nevada, Reno
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Reno, Nevada
Source: ClinicalTrials.gov public record
Updated Nov 27, 2023 · Synced Sep 27, 2026, 2:43 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety, Tolerability and Pharmacokinetics of AZD5148 in Healthy Adults

NCT06469151
View directory record Official record
Conditions
Healthy Participants
Interventions
AZD5148, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
4
States / cities
Anniston, Alabama • Glendale, California • Baltimore, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 27, 2026, 2:43 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 27, 2026, 2:43 AM EDT
Withdrawn Phase 2Phase 3 Interventional Accepts healthy volunteers

Primary Prophylaxis of Clostridioides Difficile Infection With Oral Vancomycin

NCT07221708
View directory record Official record
Conditions
Clostridioides Difficile, Vancomycin Resistance Enterococcus Faecium
Interventions
Vancomycin (POC)
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
65 Years to 100 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2027
U.S. locations
1
States / cities
Glen Burnie, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 27, 2026, 2:43 AM EDT
Completed No phase listed Observational

FQ Restriction for the Prevention of CDI

NCT03848689
View directory record Official record
Conditions
Clostridium Difficile, Clostridium Difficile Infection, C Difficile Colitis
Interventions
fluoroquinolone preprescription authorization, Control
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Not listed
Enrollment
5,871 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
7
States / cities
Phoenix, Arizona • Moreno Valley, California • Rochester, Minnesota + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2025 · Synced Sep 27, 2026, 2:43 AM EDT
Withdrawn No phase listed Observational

A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Clostridoides Difficile Infection

NCT04100603
View directory record Official record
Conditions
Clostridium Difficile, Clostridium Difficile Infection, Microbiome, CDI
Interventions
No Intervention
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Sep 27, 2026, 2:43 AM EDT
Withdrawn Not applicable Interventional

Treatment of C. Difficile Infection With Fecal Microbiota Transplantation (FMT)

NCT01842347
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal microbiota
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Months and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 12, 2013 · Synced Sep 27, 2026, 2:43 AM EDT
Completed Not applicable Interventional Results available

High- Fiber/ Low-fat Diet for Prevention of Recurrent Clostridioides Difficile Infection in Oncology

NCT04940468
View directory record Official record
Conditions
Leukemia, Lymphocytic, Acute, Leukemia, Myeloid, Acute, Lymphoma, Clostridium Difficile Infection, Solid Cancers
Interventions
Diet Intervention
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
9 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
2
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Sep 27, 2026, 2:43 AM EDT
Terminated Phase 2 Interventional Results available

Proof-of-Concept, Calcium Aluminosilicate Anti-Diarrheal (CASAD) for Treatment of Clostridium Difficile Infection

NCT01570634
View directory record Official record
Conditions
Diarrhoea, Clostridium Difficile
Interventions
Calcium Aluminosilicate Anti-Diarrheal (CASAD)
Drug
Lead sponsor
Salient Pharmaceuticals Incorporated
Industry
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Temple, Texas
Source: ClinicalTrials.gov public record
Updated Mar 7, 2013 · Synced Sep 27, 2026, 2:43 AM EDT
Completed Phase 4 Interventional

Bezlotoxumab (BEZLO) In Addition To Standard Of Care (SOC) Vancomycin For The Treatment of Multi-Recurrent Clostridium Difficile Infection

NCT03880539
View directory record Official record
Conditions
Clostridium Difficile Infection Recurrence
Interventions
bezlotoxumab, Vancomycin Oral
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated May 25, 2022 · Synced Sep 27, 2026, 2:43 AM EDT
Completed Phase 3 Interventional Results available

ECOSPOR III - SER-109 Versus Placebo in the Treatment of Adults With Recurrent Clostridium Difficile Infection

NCT03183128
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
SER-109, Placebo
Biological · Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
51
States / cities
North Little Rock, Arkansas • Mather, California • Mountain View, California + 46 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2023 · Synced Sep 27, 2026, 2:43 AM EDT
Terminated Phase 2 Interventional Results available

Alanyl-glutamine Supplementation of Standard Treatment for C. Difficile Infection

NCT02053350
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Alanyl-glutamine
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 6, 2022 · Synced Sep 27, 2026, 2:43 AM EDT
Terminated Phase 2 Interventional Results available

FMT Versus Antimicrobials for Initial Treatment of Recurrent CDI

NCT02255305
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
FMT, Antimicrobials
Biological · Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Sep 27, 2026, 2:43 AM EDT
Recruiting Not applicable Interventional

Outcomes and Data Collection for Fecal Microbiota Transplantation for the Treatment of Recurrent Clostridium Difficile

NCT03562741
View directory record Official record
Conditions
Clostridium Difficile Infection Recurrence, Clostridium Difficile Infection
Interventions
Fecal Microbiota Transplantation
Procedure
Lead sponsor
Krunal Patel
Other
Eligibility
16 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2029
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Sep 27, 2026, 2:43 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Dynamics of Colonization and Infection by Multidrug-Resistant Pathogens in Immunocompromised and Critically Ill Patients

NCT06258551
View directory record Official record
Conditions
Antimicrobial Drug Resistance, Antibiotic Resistant Infection, Clostridium Difficile, Carbapenem-Resistant Enterobacteriaceae Infection, Extended Spectrum Beta-Lactamase Producing Bacteria Infection, Vancomycin Resistant Enterococci Infection, Carbapenem Resistant Bacterial Infection, Vancomycin-Resistant Enterococcal Infection
Interventions
Not listed
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 13, 2024 · Synced Sep 27, 2026, 2:43 AM EDT
Completed Phase 2 Interventional

A Study of SMT19969 Compared With Vancomycin for the Treatment of Clostridium Difficile-Associated Diarrhoea (CDAD)

NCT02092935
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
SMT19969, Vancomycin
Drug
Lead sponsor
Summit Therapeutics
Industry
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
24
States / cities
Mobile, Alabama • Laguna Hills, California • Long Beach, California + 21 more
Source: ClinicalTrials.gov public record
Updated Oct 19, 2016 · Synced Sep 27, 2026, 2:43 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 27, 2026, 2:43 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 27, 2026, 2:43 AM EDT