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ClinicalTrials.gov public records Last synced Oct 2, 2026, 6:53 AM EDT

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Showing 49–72 of 172 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Infections, Clostridium Difficile Clear all
Completed Phase 2 Interventional Results available

Microbiota Restoration Therapy for Recurrent Clostridium Difficile Infection

NCT02299570
View directory record Official record
Conditions
Enterocolitis Clostridium Difficile Recurrent
Interventions
RBX2660 (microbiota suspension), Placebo
Biological · Other
Lead sponsor
Rebiotix Inc.
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
19
States / cities
Phoenix, Arizona • Aurora, Colorado • Jacksonville, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2021 · Synced Oct 2, 2026, 6:53 AM EDT
Completed No phase listed Observational

The Role of Mucosal Microbiome in Recurrence of Clostridioides Difficile Infection

NCT04675723
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 18, 2023 · Synced Oct 2, 2026, 6:53 AM 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 17, 2025 · Synced Oct 2, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Results available

Phase 2 Study of VE303 for Prevention of Recurrent Clostridioides Difficile Infection

NCT03788434
View directory record Official record
Conditions
Clostridium Difficile Infection Recurrence, Clostridium Difficile Infection, Clostridium Difficile, Clostridioides Difficile Infection Recurrence, Clostridioides Difficile Infection, Clostridioides Difficile, CDI
Interventions
VE303, Placebo
Drug
Lead sponsor
Vedanta Biosciences, Inc.
Industry
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
29
States / cities
Phoenix, Arizona • Jonesboro, Arkansas • Canoga Park, California + 22 more
Source: ClinicalTrials.gov public record
Updated Jul 3, 2023 · Synced Oct 2, 2026, 6:53 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 10, 2021 · Synced Oct 2, 2026, 6:53 AM EDT
Completed Phase 1 Interventional

Treatment of Recurrent Clostridium Difficile Infection With RBX7455

NCT02981316
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
RBX7455
Biological
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 8, 2020 · Synced Oct 2, 2026, 6:53 AM EDT
Recruiting Phase 2 Interventional

Prevention of Recurrent C. Difficile Infection Study With AZD5148 Monoclonal Antibody

NCT07285213
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
AZD5148, Placebo
Drug · Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
43
States / cities
Phoenix, Arizona • Chula Vista, California • Sacramento, California + 39 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 2, 2026, 6:53 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 20, 2026 · Synced Oct 2, 2026, 6:53 AM EDT
Completed No phase listed Observational

Clinical Outcomes of Patients With Clostridium Difficile Associated Disease Attributable to Diverse tcdC Genotypes

NCT00446355
View directory record Official record
Conditions
Clostridium Infections
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2009 · Synced Oct 2, 2026, 6:53 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 20, 2021 · Synced Oct 2, 2026, 6:53 AM EDT
Completed Not applicable Interventional Results available

Enteral Nutrition as Stress Ulcer Prophylaxis in Critically Ill Patients.

NCT01477320
View directory record Official record
Conditions
Gastrointestinal Hemorrhage, Clostridium Difficile Colitis
Interventions
Pantoprazole 40 mg IV daily and tube feed., Placebo and tube feed
Drug · Other
Lead sponsor
Mohamed Saad
Other
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jan 16, 2018 · Synced Oct 2, 2026, 6:53 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 3, 2023 · Synced Oct 2, 2026, 6:53 AM EDT
Recruiting No phase listed Observational

Fecal Microbiota Transplant National Registry

NCT03325855
View directory record Official record
Conditions
Fecal Microbiota Transplantation, Clostridium Difficile Infection, Gut Microbiome
Interventions
None - Observational
Other
Lead sponsor
American Gastroenterological Association
Other
Eligibility
Not listed
Enrollment
4,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
52
States / cities
Phoenix, Arizona • Los Angeles, California • Redwood City, California + 39 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Oct 2, 2026, 6:53 AM EDT
Terminated Phase 4 Interventional

Use Of Oral Fidaxomicin Vs. Oral Vancomycin For Clostridium Difficile Infection In Patients With Spinal Cord Injury

NCT02355938
View directory record Official record
Conditions
Clostridium Difficile, Spinal Cord Injury
Interventions
Fidaxomicin 200 mg, Placebo, Vancomycin
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 13, 2016 · Synced Oct 2, 2026, 6:53 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 18, 2018 · Synced Oct 2, 2026, 6:53 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 30, 2022 · Synced Oct 2, 2026, 6:53 AM EDT
Completed Phase 4 Interventional Results available

Study to Assess Inhibition of Spore Production in Patients With C. Difficile Infections: Fidaxomicin Versus Vancomycin

NCT01818141
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Vancomycin, Fidaxomicin
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 28, 2017 · Synced Oct 2, 2026, 6:53 AM EDT
Completed No phase listed Observational

The Characteristics and Role of Mucosal Microbiome After Treatment of Clostridioides Difficile Infection

NCT04668014
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Oct 2, 2026, 6:53 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Microbiota or Placebo After Antimicrobial Therapy for Recurrent C. Difficile at Home (MATCH)

NCT03005379
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal Microbiota Therapy (FMT), Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 11, 2024 · Synced Oct 2, 2026, 6:53 AM EDT
Suspended No phase listed Observational

A Screening and Recruitment Study in Adults Expressing Interest in the Emory Microbiota Enrichment Program

NCT03350711
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 28, 2026 · Synced Oct 2, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Results available

ACX-362E [Ibezapolstat] for Oral Treatment of Clostridioides Difficile Infection

NCT04247542
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Ibezapolstat, Vancomycin
Drug
Lead sponsor
Acurx Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 90 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
29
States / cities
Scottsdale, Arizona • Apple Valley, California • Camarillo, California + 21 more
Source: ClinicalTrials.gov public record
Updated Jan 17, 2025 · Synced Oct 2, 2026, 6:53 AM EDT
Completed Phase 2 Interventional

A Study of Ridinilazole (SMT19969) Compared With Fidaxomicin for the Treatment of Clostridium Difficile Infection (CDI)

NCT02784002
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Ridinilazole, Fidaxomicin
Drug
Lead sponsor
Summit Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
5
States / cities
Laguna Hills, California • Ventura, California • Idaho Falls, Idaho + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Oct 2, 2026, 6:53 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 11, 2018 · Synced Oct 2, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Results available

Microbiota Restoration Therapy for Recurrent Clostridium Difficile-associated Diarrhea

NCT01925417
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 13, 2019 · Synced Oct 2, 2026, 6:53 AM EDT