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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Clostridioides Difficile Infection Recurrence 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 14, 2021 · Synced Jun 27, 2026, 3:16 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 Jun 27, 2026, 3:16 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 2, 2023 · Synced Jun 27, 2026, 3:16 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 Jun 27, 2026, 3:16 AM EDT
Completed Phase 2 Interventional Results available

ICON-2: FMT and Bezlotoxumab Compared to FMT and Placebo for Patients With IBD and CDI

NCT03829475
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 Jun 27, 2026, 3:16 AM EDT
Completed Not applicable Interventional

Dietary Optimization of Microbiome Recovery Following Fecal Microbiota Transplantation

NCT05826418
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 Jun 27, 2026, 3:16 AM EDT
Completed Phase 2 Interventional Results available

Open-Label Extension of CP101 Trials Evaluating Oral Full-Spectrum Microbiota™ (CP101) in Subjects With Recurrence of Clostridium Difficile Infection

NCT03497806
View directory record Official record
Conditions
Clostridium Difficile Infection, Recurrent Clostridium Difficile Infection, C. Diff, CDI, Recurrent C. Diff, rCDI, C. Difficile, Recurrent CDI, FMT, Fecal Microbiota, Fecal Transplant
Interventions
CP101
Biological
Lead sponsor
Finch Research and Development LLC.
Industry
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
53
States / cities
Scottsdale, Arizona • Los Angeles, California • Murrieta, California + 47 more
Source: ClinicalTrials.gov public record
Updated Aug 29, 2022 · Synced Jun 27, 2026, 3:16 AM EDT
Terminated Phase 4 Interventional Results available

Prevention of Recurrent Clostridium Difficile Infection (CDI) in Patients With Inflammatory Bowel Disease (IBD).

NCT04626947
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 Jun 27, 2026, 3:16 AM EDT
Terminated Phase 2 Interventional Results available

Safety of FMT: OpenBiome Outcomes and Longitudinal Follow-up (STOOL) for Recurrent Clostridium Difficile Infection

NCT02403622
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 Jun 27, 2026, 3:16 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 17, 2023 · Synced Jun 27, 2026, 3:16 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 Jun 27, 2026, 3:16 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 Jun 27, 2026, 3:16 AM EDT
Completed Phase 3 Interventional Results available

A Multi-center, Single-arm Trial Exploring the Safety and Clinical Effectiveness of RBX2660 Administered by Colonoscopy to Adults With Recurrent Clostridioides Difficile Infection

NCT05831189
View directory record Official record
Conditions
Clostridium Difficile Infection Recurrence
Interventions
RBX2660
Drug
Lead sponsor
Ferring Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
12
States / cities
North Little Rock, Arkansas • Camarillo, California • Hamden, Connecticut + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Jun 27, 2026, 3:16 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 Jun 27, 2026, 3:16 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 Jun 27, 2026, 3:16 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 Jun 27, 2026, 3:16 AM EDT
Not listed Phase 1 Interventional

Fecal Transplant for Pediatric Patients Who Have Recurrent C-diff Infection

NCT02134392
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 Jun 27, 2026, 3:16 AM EDT
Completed Phase 2 Interventional Results available

Microbiota Restoration Therapy for Recurrent Clostridium Difficile Infection

NCT02589847
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 Jun 27, 2026, 3:16 AM EDT
Not listed Phase 2 Interventional

Gut Microbiota Changes After Fecal Microbiota Transplantation

NCT02557685
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal Microbiota Transplantation
Biological
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 90 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 22, 2015 · Synced Jun 27, 2026, 3:16 AM EDT
Completed Phase 2 Interventional Results available

SER-109 Versus Placebo to Prevent Recurrent Clostridium Difficile Infection (RCDI)

NCT02437487
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 Jun 27, 2026, 3:16 AM EDT
Recruiting Not applicable Interventional

Fecal Microbiota Transplantation for C Diff Infection

NCT01905709
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Human fecal matter
Biological
Lead sponsor
Englewood Hospital and Medical Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
1
States / cities
Englewood, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 12, 2025 · Synced Jun 27, 2026, 3:16 AM EDT
Completed Not applicable Interventional

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
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 Apr 6, 2026 · Synced Jun 27, 2026, 3:16 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 Jun 27, 2026, 3:16 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 Jun 27, 2026, 3:16 AM EDT