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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Recurrent Clostridium Difficile Infection Clear all
Recruiting Not applicable Interventional

Lifestyle and Recurrent Clostridioides Difficile Infection (CDI)

NCT07613645
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
Health counseling sessions, Diet (control diet), Diet (experimental diet)
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 28, 2026, 11:06 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Oral Vancomycin for Secondary Prophylaxis of Clostridium Difficile Infection (CDI)

NCT04000555
View directory record Official record
Conditions
Clostridium Difficile Infection, Clostridium Difficile Infection Recurrence
Interventions
Oral Vancomycin, Placebo
Drug · Other
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
2
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 20, 2023 · Synced Sep 28, 2026, 11:06 AM EDT
Completed Phase 1 Interventional

MTC Versus FMT in for RCDI

NCT05911997
View directory record Official record
Conditions
Clostridiodies Difficile Infections
Interventions
MTC 01, Fecal Microbiota Transplantation (FMT)
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 28, 2026, 11:06 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 9, 2026 · Synced Sep 28, 2026, 11:06 AM EDT
Not listed Phase 4 Interventional

Vancomycin Prophylaxis in Recurrent Clostridium Difficile Infection

NCT02237859
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Vancomycin, fruit juice/placebo
Drug · Dietary Supplement
Lead sponsor
Corewell Health West
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Grand Rapids, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 10, 2014 · Synced Sep 28, 2026, 11:06 AM EDT
Completed Phase 3 Interventional Results available

ECOSPOR IV: An Open-Label Study Evaluating SER-109 in Recurrent Clostridioides Difficile Infection

NCT03183141
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 Sep 28, 2026, 11:06 AM EDT
Active, not recruiting Phase 2Phase 3 Interventional

LMN-201 for Prevention of C. Difficile Infection Recurrence

NCT05330182
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
LMN-201, Placebo
Drug
Lead sponsor
Lumen Bioscience, Inc.
Industry
Eligibility
18 Years and older
Enrollment
375 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
15
States / cities
Escondido, California • Hamden, Connecticut • Tampa, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 28, 2026, 11:06 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 28, 2026, 11:06 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 28, 2026, 11:06 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 28, 2026, 11:06 AM EDT
Terminated Phase 3 Interventional Results available

A Trial of CP101 for the Prevention of Recurrent CDI (PRISM4)

NCT05153499
View directory record Official record
Conditions
Recurrent C. Difficile Infection
Interventions
CP101, Placebo
Biological · Other
Lead sponsor
Finch Research and Development LLC.
Industry
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
61
States / cities
Phoenix, Arizona • Mission Hills, California • Oakland, California + 51 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2023 · Synced Sep 28, 2026, 11:06 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 28, 2026, 11:06 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 28, 2026, 11:06 AM EDT
Completed No phase listed Observational

REBYOTA™ Prospective Registry

NCT05835219
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 Sep 28, 2026, 11:06 AM EDT
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 14, 2021 · Synced Sep 28, 2026, 11:06 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 12, 2019 · Synced Sep 28, 2026, 11:06 AM EDT
Completed Phase 1 Interventional

A Study of ART24 in Subjects Recently Cured of a Clostridioides Difficile Infection (CDI)

NCT04891965
View directory record Official record
Conditions
Clostridium Difficile Infection Recurrence
Interventions
ART24, Placebo
Biological · Drug
Lead sponsor
Adiso Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
13
States / cities
Palm Springs, California • Clearwater, Florida • Doral, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2022 · Synced Sep 28, 2026, 11:06 AM EDT
Completed Phase 1 Interventional

SER-262 Versus Placebo in Adults With Primary Clostridium Difficile Infection to Prevent Recurrence

NCT02830542
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 Sep 28, 2026, 11:06 AM EDT
Terminated Phase 2 Interventional Results available

Fecal Microbiota Transplantation for C. Difficile Infection in Solid Organ Transplant Recipients

NCT03617445
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 Sep 28, 2026, 11:06 AM EDT
Not yet recruiting Early Phase 1 Interventional

Prevention of Recurrence of Clostridioides Difficile Colitis With Ursodeoxycholic Acid (UCDA) as a Supplement to Standard Therapy

NCT06884748
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
Ursodiol 500 MG
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 28, 2026, 11:06 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 28, 2026, 11:06 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 28, 2026, 11:06 AM EDT
Terminated Phase 4 Interventional

Oral Vancomycin for Preventing Clostridium Difficile Recurrence

NCT03200093
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 Sep 28, 2026, 11:06 AM EDT
Completed Phase 1 Interventional

Fresh Versus Frozen Stool for Fecal Transplant in Children

NCT02423967
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Transplant uses frozen anonymous stool, Transplant uses fresh familial stool
Biological
Lead sponsor
Mayo Clinic
Other
Eligibility
1 Year to 18 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 5, 2019 · Synced Sep 28, 2026, 11:06 AM EDT