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ClinicalTrials.gov public records Last synced May 22, 2026, 12:21 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 Clear all
Completed Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Fecal microbiota transplant (FMT), flexible sigmoidoscopy
Procedure · Device
Lead sponsor
Emory University
Other
Eligibility
18 Years to 79 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 30, 2018 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile
Interventions
SER-109, Placebo
Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
30
States / cities
Oceanside, California • Sacramento, California • Ventura, California + 26 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2018 · Synced May 22, 2026, 12:21 AM EDT
Terminated Phase 4 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Diarrhea
Interventions
Metronidazole, Placebo
Drug
Lead sponsor
Alison Schneider
Other
Eligibility
55 Years and older
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 4 Interventional Results available
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 May 22, 2026, 12:21 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
Ridinilazole, Vancomycin
Drug
Lead sponsor
Summit Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
759 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
49
States / cities
Birmingham, Alabama • Sun City, Arizona • Los Angeles, California + 45 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced May 22, 2026, 12:21 AM EDT
Not listed Phase 1 Interventional
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 May 22, 2026, 12:21 AM EDT
Terminated Not applicable Interventional
View directory record Official record
Conditions
Clostridium Difficile Colitis
Interventions
Ileal diversion and lavage, total abdominal colectomy
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 30, 2015 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection (CDI)
Interventions
RBX2660, Placebo, Open label RBX2660 (only for confirmed CDI recurrence)
Drug
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
60
States / cities
Athens, Alabama • Dothan, Alabama • Phoenix, Arizona + 54 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2024 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
MGB-BP-3
Drug
Lead sponsor
MGB Biopharma Limited
Industry
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
8
States / cities
Miami, Florida • Orlando, Florida • Idaho Falls, Idaho + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2020 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Clostridium Difficile
Interventions
C. difficile vaccine with adjuvant, placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
50 Years to 85 Years
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
6
States / cities
Overland Park, Kansas • Cary, North Carolina • Raleigh, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2018 · Synced May 22, 2026, 12:21 AM EDT
Withdrawn Not applicable Interventional
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 May 22, 2026, 12:21 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Bezlotoxumab, Placebo, Antibacterial drug treatment (ABD)
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
1 Year to 17 Years
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
21
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced May 22, 2026, 12:21 AM EDT
Terminated Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal microbiota transplant G3 capsules, Oral Vancomycin alone
Biological · Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 14, 2021 · Synced May 22, 2026, 12:21 AM EDT
Suspended No phase listed Observational
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Microbiota Enrichment Program (MEP)
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
3
States / cities
Atlanta, Georgia • Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 3 Interventional Results available
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 May 22, 2026, 12:21 AM EDT
Not yet recruiting Phase 4 Interventional
View directory record Official record
Conditions
Inflammatory Bowel Disease (IBD), Clostridioides Difficile Infection
Interventions
Vancomycin (POC), Fidaxomicin
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 2, 2025 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Recurrent Clostridium Difficile Infection
Interventions
RBX2660 (microbiota suspension)
Biological
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
13
States / cities
Phoenix, Arizona • Denver, Colorado • Jacksonville, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2019 · Synced May 22, 2026, 12:21 AM EDT
Withdrawn Phase 4 Interventional
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fidaxomicin, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 27, 2014 · Synced May 22, 2026, 12:21 AM EDT
Active, not recruiting Phase 2 Interventional
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 May 22, 2026, 12:21 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Healthy, Clostridium Difficile Infection
Interventions
omeprazole
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 19, 2014 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Multi-Drug Resistant Organism
Interventions
Allogeneic Microbiota in Glycerol (10%) (AMG)
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 27, 2024 · Synced May 22, 2026, 12:21 AM EDT
Completed Phase 4 Interventional
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 May 22, 2026, 12:21 AM EDT
Not listed Phase 2 Interventional
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 May 22, 2026, 12:21 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Diarrhea, Clostridium Difficile Infection
Interventions
0.9% Normal Saline, Clostridium difficile toxoid vaccine, Clostridium difficile toxoid vaccine with adjuvant
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years to 85 Years
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
5
States / cities
Tampa, Florida • Marietta, Georgia • Worcester, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2013 · Synced May 22, 2026, 12:21 AM EDT