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ClinicalTrials.gov public records Last synced May 22, 2026, 4:13 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 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Clostridium Difficile Infection Recurrence Clear all
Terminated Phase 4 Interventional Results available
View directory record Official record
Conditions
Clostridium, Difficile, Fidaxomicin, Vancomycin
Interventions
Fidaxomicin, Vancomycin with Taper/Pulse, Vancomycin
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
308 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
32
States / cities
Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 28 more
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced May 22, 2026, 4:13 AM EDT
Terminated Phase 4 Interventional
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Oral Vancomycin, Placebo
Drug
Lead sponsor
Rochester General Hospital
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 25, 2021 · Synced May 22, 2026, 4:13 AM EDT
Completed Phase 3 Interventional Results available
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 May 22, 2026, 4:13 AM EDT
Completed Phase 2 Interventional Results available
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 May 22, 2026, 4:13 AM EDT
Terminated Phase 2 Interventional Results available
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 May 22, 2026, 4:13 AM EDT
Completed Not applicable Interventional
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 May 22, 2026, 4:13 AM EDT
Terminated Phase 4 Interventional Results available
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Ulcerative Colitis, Crohn Disease, C. Diff. Infections
Interventions
Bezlotoxumab
Biological
Lead sponsor
David Binion, MD
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced May 22, 2026, 4:13 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
RBX2660, Standard of Care Antibiotics
Biological · Drug
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
272 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
28
States / cities
Phoenix, Arizona • North Little Rock, Arkansas • Sacramento, California + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 25, 2021 · Synced May 22, 2026, 4:13 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
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 May 22, 2026, 4:13 AM EDT
Completed Phase 3 Interventional Results available
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 May 22, 2026, 4:13 AM EDT
Recruiting Phase 1 Interventional
View directory record Official record
Conditions
Recurrent Clostridioides Difficile Infection, Colonic Surgery
Interventions
IMT
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced May 22, 2026, 4:13 AM EDT
Completed No phase listed Observational
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 May 22, 2026, 4:13 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Recurrence of Clostridium Difficile Infection
Interventions
REBYOTA™
Drug
Lead sponsor
Ferring Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
42
States / cities
Chandler, Arizona • Chula Vista, California • Murrieta, California + 36 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced May 22, 2026, 4:13 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection Recurrence
Interventions
FMT oral capsule, Oral Vancomycin, FMT oral placebo, Oral Vancomycin placebo
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
5
States / cities
Chicago, Illinois • Indianapolis, Indiana • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2025 · Synced May 22, 2026, 4:13 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection Recurrence
Interventions
Full Spectrum Microbiota, Placebo
Drug
Lead sponsor
Finch Research and Development LLC.
Industry
Eligibility
18 Years and older
Enrollment
206 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
54
States / cities
Scottsdale, Arizona • Los Angeles, California • Murrieta, California + 48 more
Source: ClinicalTrials.gov public record
Updated Oct 4, 2022 · Synced May 22, 2026, 4:13 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
SER-262, Placebo
Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
22
States / cities
Athens, Alabama • Fountain Valley, California • La Mesa, California + 19 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2023 · Synced May 22, 2026, 4:13 AM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Clostridioides Difficile Infection Recurrence
Interventions
Participants that are undergoing standard of care antibiotic treatment for their second C. Diff infection will be followed for 8 weeks after completing antibiotic treatment.
Other
Lead sponsor
Bactolife A/S
Industry
Eligibility
18 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced May 22, 2026, 4:13 AM EDT
Terminated Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridial Infection, Dysbiosis, Probiotic Therapy
Interventions
Fecal Microbiota Transplantation (FMT), Saline
Procedure · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
3
States / cities
Decatur, Georgia • Durham, North Carolina • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 1, 2022 · Synced May 22, 2026, 4:13 AM EDT
Completed No phase listed Observational Results available
View directory record Official record
Conditions
Clostridium Difficile Infections
Interventions
Not listed
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
1 Year to 18 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 22, 2016 · Synced May 22, 2026, 4:13 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
SER-109
Biological
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
263 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
97
States / cities
Dothan, Alabama • Sun City West, Arizona • Mather, California + 84 more
Source: ClinicalTrials.gov public record
Updated Apr 9, 2023 · Synced May 22, 2026, 4:13 AM EDT
Completed Phase 2 Interventional Results available
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 May 22, 2026, 4:13 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Fecal Microbiota Preparation
Drug
Lead sponsor
Microbiome Health Research Institute
Other
Eligibility
18 Years to 75 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
4
States / cities
Naperville, Illinois • Indianapolis, Indiana • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 22, 2021 · Synced May 22, 2026, 4:13 AM EDT
Terminated Phase 2 Interventional Results available
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 May 22, 2026, 4:13 AM EDT
Suspended Phase 3 Interventional
View directory record Official record
Conditions
Recurrent Clostridium Difficile Infection
Interventions
Lactobacillus acidophilus CL1285® and Lactobacillus casei, Placebo
Dietary Supplement
Lead sponsor
Bio-K Plus International Inc.
Industry
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Jan 14, 2016 · Synced May 22, 2026, 4:13 AM EDT