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ClinicalTrials.gov public records Last synced May 22, 2026, 1:12 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 31 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Clostridium Difficile Associated Disease Clear all
Completed No phase listed Observational
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 13, 2009 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Clostridium Infections
Interventions
GS-CDA1/MDX-1388, normal saline
Biological
Lead sponsor
MassBiologics
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
22
States / cities
Los Angeles, California • Oakland, California • Newark, Delaware + 18 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2021 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Clostridium Difficile Associated Disease
Interventions
Clostridium difficile vaccine, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
50 Years to 85 Years
Enrollment
185 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
12
States / cities
DeLand, Florida • Savannah, Georgia • Stockbridge, Georgia + 9 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2017 · Synced May 22, 2026, 1:12 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
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 9, 2010 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Clostridium Difficile Associated Disease
Interventions
Clostridium difficile Vaccine, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
65 Years to 85 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
17
States / cities
DeLand, Florida • Hollywood, Florida • South Miami, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2021 · Synced May 22, 2026, 1:12 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Multidrug Resistant Organisms, Healthcare Associated Infections
Interventions
Quaternary ammonium, Bleach, Quaternary ammonium and UV-C light, Bleach and UV-C light
Other
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
21,395 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
9
States / cities
Burlington, North Carolina • Chapel Hill, North Carolina • Durham, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2015 · Synced May 22, 2026, 1:12 AM EDT
Terminated Phase 3 Interventional
View directory record Official record
Conditions
Enterocolitis, Pseudomembranous, Diarrhea, Clostridium Difficile
Interventions
GT267-004 (tolevamer potassium sodium)
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
13
States / cities
Modesto, California • Honolulu, Hawaii • Maywood, Illinois + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2015 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Clostridium Difficile Associated Disease
Interventions
C. difficile vaccine, C. difficile vaccine +adjuvant
Biological
Lead sponsor
Pfizer
Industry
Eligibility
50 Years to 85 Years
Enrollment
192 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
4
States / cities
Pembroke Pines, Florida • South Miami, Florida • Overland Park, Kansas + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2014 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Nosocomial Infection, Bacteremia, Sepsis, Pneumonia, Urinary Tract Infection, Clostridium Infection
Interventions
2% chlorhexidine gluconate impregnated cloth, Daily bathing with Bar soap
Drug · Other
Lead sponsor
Cook County Health
Government
Eligibility
16 Years and older
Enrollment
208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 17, 2023 · Synced May 22, 2026, 1:12 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Diarrhea
Interventions
Probiotics
Dietary Supplement
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 89 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 22, 2016 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Clostridium Enterocolitis, Pseudomembranous Colitis
Interventions
Nitazoxanide
Drug
Lead sponsor
Daniel M. Musher MD
Federal
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 14, 2017 · Synced May 22, 2026, 1:12 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Clostridium Enterocolitis, Pseudomembranous Colitis, Antibiotic-Associated Colitis
Interventions
Metronidazole
Drug
Lead sponsor
Michael E. DeBakey VA Medical Center
Federal
Eligibility
18 Years to 64 Years
Enrollment
290 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 17, 2013 · Synced May 22, 2026, 1:12 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, 1:12 AM EDT
Withdrawn Phase 4 Interventional
View directory record Official record
Conditions
Enterocolitis, Pseudomembranous Colitis, Antibiotic-associated Colitis
Interventions
Lactobacillus GG
Drug
Lead sponsor
Michael E. DeBakey VA Medical Center
Federal
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 9, 2017 · Synced May 22, 2026, 1:12 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, 1:12 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Clostridioides Difficile Associated Disease
Interventions
C.difficile vaccine, Saline Placebo
Biological · Other
Lead sponsor
Pfizer
Industry
Eligibility
65 Years and older
Enrollment
32,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
130
States / cities
Athens, Alabama • Guntersville, Alabama • Huntsville, Alabama + 88 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Moderate Clostridium Difficile Infection
Interventions
LFF571, Vancomycin (POC)
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 90 Years
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
14
States / cities
Palm Desert, California • Bristol, Connecticut • Clearwater, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Dec 18, 2020 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Clostridium Difficile-Associated Diarrhea, Clostridium Enterocolitis, Clostridium Difficile Diarrhea, Antibiotic-associated Colitis, Antibiotic-associated Diarrhea
Interventions
GT160-246
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
58
States / cities
Mobile, Alabama • Phoenix, Arizona • Tucson, Arizona + 50 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2015 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Clostridium Enterocolitis, Pseudomembranous Colitis
Interventions
tolevamer potassium-sodium (GT267-004)
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
99
States / cities
Phoenix, Arizona • Rogers, Arkansas • Burbank, California + 81 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2015 · Synced May 22, 2026, 1:12 AM EDT
Active, not recruiting No phase listed Observational
View directory record Official record
Conditions
Dysbiosis, Clostridium Difficile, Pet-Human Bonding, Antibiotic-Associated Colitis
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced May 22, 2026, 1:12 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Clostridoides Difficile Associated Disease
Interventions
C. difficile vaccine (previously studied formulation)., C. difficile vaccine formulation 1., C. difficile vaccine formulation 2., C. difficile vaccine formulation 3., Saline Placebo.
Biological · Other
Lead sponsor
Pfizer
Industry
Eligibility
50 Years and older
Enrollment
936 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2031
U.S. locations
23
States / cities
Phoenix, Arizona • Anaheim, California • Doral, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced May 22, 2026, 1:12 AM EDT
Terminated Phase 3 Interventional
View directory record Official record
Conditions
Clostridium Infections
Interventions
Nitazoxanide, Vancomycin
Drug
Lead sponsor
Romark Laboratories L.C.
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
10
States / cities
Torrance, California • Bay Pines, Florida • Atlanta, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated May 4, 2015 · Synced May 22, 2026, 1:12 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, 1:12 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Clostridium Difficile Associated Disease
Interventions
Clostridium difficile, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
50 Years and older
Enrollment
1,994 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
52
States / cities
Athens, Alabama • Huntsville, Alabama • Chandler, Arizona + 43 more
Source: ClinicalTrials.gov public record
Updated Jan 9, 2024 · Synced May 22, 2026, 1:12 AM EDT