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ClinicalTrials.gov public records Last synced Sep 7, 2026, 3:17 AM EDT

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Showing 1–24 of 38 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Prophylaxis of Diarrhea Clear all
Terminated Not applicable Interventional Accepts healthy volunteers

Probiotics for Prevention of Antibiotic Associated Diarrhea and Clostridium Difficile Associated Disease

NCT02076438
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 Sep 7, 2026, 3:17 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 Sep 7, 2026, 3:17 AM EDT
Terminated Phase 3 Interventional

A Study to Determine Effective Prophylaxis and Treatment of Nelfinavir-Associated Diarrhea

NCT00650637
View directory record Official record
Conditions
Diarrhea
Interventions
Calcium Carbonate, nelfinavir, lamivudine, loperamide, Calcium carbonate not administered, lamivudine + zidovudine
Drug · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003
U.S. locations
6
States / cities
Birmingham, Alabama • Fort Lauderdale, Florida • New York, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2011 · Synced Sep 7, 2026, 3:17 AM EDT
Recruiting Phase 2 Interventional

Impact of Budesonide on Incidence of ≥ Gr2 Diarrhea in Multiple Myeloma (MM) Patients Undergoing Autologous Stem Cell Transplant

NCT05405387
View directory record Official record
Conditions
Multiple Myeloma, Plasma Cell Leukemia
Interventions
Budesonide EC, Placebo
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Prevention of Travelers' Diarrhea in Subjects Traveling Outside the U.S.

NCT00328380
View directory record Official record
Conditions
Diarrhea
Interventions
Rifaximin
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older
Enrollment
660 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
3
States / cities
South Miami, Florida • Houston, Texas • La Porte, Texas
Source: ClinicalTrials.gov public record
Updated Nov 24, 2019 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study in Healthy Adults Challenged With Enterotoxigenic E. Coli, of the Safety, Tolerability and Anti-Diarrheal Activity of VENBETA6890, an Orally Administered, Human Monoclonal IgA

NCT06896136
View directory record Official record
Conditions
Diarrhea Infectious
Interventions
VENBETA6890, Placebo
Drug
Lead sponsor
Mark Klempner
Other
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 21, 2025 · Synced Sep 7, 2026, 3:17 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Bismuth Subsalicylate's Role in the Prevention of Travelers' Diarrhea

NCT03535272
View directory record Official record
Conditions
Diarrhea Travelers, Antibiotic Resistant Infection
Interventions
Bismuth subsalicylate, Placebo
Drug
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
18 Years to 69 Years
Enrollment
482 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 4 Interventional Results available

C. Difficile and Ursodiol

NCT02748616
View directory record Official record
Conditions
Diarrhea
Interventions
Ursodiol
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 10, 2022 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Efficacy of Rifaximin in Preventing Campylobacteriosis

NCT02280044
View directory record Official record
Conditions
Dysentery, Diarrhea, Enteric Campylobacteriosis
Interventions
Rifaximin intervention, Placebo intervention
Biological
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 19, 2018 · Synced Sep 7, 2026, 3:17 AM EDT
Terminated Phase 2 Interventional

Study of Culturelle in the Prophylaxis of Infection and Diarrhea

NCT01605747
View directory record Official record
Conditions
Pediatric Burns
Interventions
Culturelle, Placebo
Dietary Supplement
Lead sponsor
Shriners Hospitals for Children
Other
Eligibility
6 Months to 18 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 12, 2013 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 3 Interventional

Prophylaxis of Diarrhea in Adult Cancer Patients Receiving Targeted Cancer Therapy

NCT04538625
View directory record Official record
Conditions
Cancer Therapy-Related Diarrhea, Chemotherapy-related Diarrhea, Adult Solid Tumor, Prophylaxis of Diarrhea, Symptomatic Relief of Diarrhea, Targeted Therapy-related Diarrhea
Interventions
Crofelemer 125 MG [Mytesi], Placebo
Drug
Lead sponsor
Napo Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
287 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
27
States / cities
Prescott, Arizona • Anaheim, California • Corona, California + 24 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2024 · Synced Sep 7, 2026, 3:17 AM EDT
Terminated Phase 4 Interventional Results available

Efficacy of Metronidazole Prophylaxis Against Clostridium Difficile-Associated Diarrhea in High Risk Adult Patients

NCT02200328
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 Sep 7, 2026, 3:17 AM EDT
Completed Phase 3 Interventional

Glutamine in Preventing Acute Diarrhea in Patients With Pelvic Cancer

NCT00003170
View directory record Official record
Conditions
Cancer
Interventions
glutamine, placebo
Dietary Supplement · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2003
U.S. locations
17
States / cities
Scottsdale, Arizona • Peoria, Illinois • Urbana, Illinois + 14 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2016 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 3 Interventional Results available

Microbiota Restoration Therapy for Recurrent Clostridium Difficile Infection (PUNCHCD3)

NCT03244644
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 Sep 7, 2026, 3:17 AM EDT
Suspended Phase 3 Interventional

BIO-K+ CL1285 for Prevention of Recurrent Clostridium Difficile Infection

NCT01202630
View directory record Official record
Conditions
Recurrent Clostridium Difficile Infection
Interventions
Lactobacillus acidophilus CL1285® and Lactobacillus casei, Placebo
Dietary Supplement
Lead sponsor
Bio-K Plus International Inc.
Industry
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Jan 14, 2016 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

ETEC Logistics Trial (TREK)

NCT00516659
View directory record Official record
Conditions
Diarrhea
Interventions
Heat-Labile Enterotoxin of Escherichia coli (LT), Placebo
Biological
Lead sponsor
Intercell USA, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
201 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
13
States / cities
Long Beach, California • Chicago, Illinois • Baltimore, Maryland + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2012 · Synced Sep 7, 2026, 3:17 AM EDT
Terminated Phase 3 Interventional

Octreotide in the Prevention of Diarrhea in Patients Receiving Irinotecan for Metastatic Colon Cancer

NCT00006269
View directory record Official record
Conditions
Colorectal Cancer, Diarrhea
Interventions
irinotecan hydrochloride, octreotide acetate
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
2
States / cities
East Hanover, New Jersey • Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated May 24, 2012 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Prevention, Randomized, Double-Blinded, Placebo-Controlled, Parallel Assignment, Safety/Efficacy Study

NCT00672035
View directory record Official record
Conditions
Traveler's Diarrhea
Interventions
Biological: heat-labile enterotoxin of E. coli (LT)
Biological
Lead sponsor
Intercell USA, Inc.
Industry
Eligibility
18 Years to 40 Years
Enrollment
406 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
5
States / cities
Davis, California • Bingham Farms, Michigan • Cortland, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2012 · Synced Sep 7, 2026, 3:17 AM EDT
Terminated Phase 2Phase 3 Interventional

Whey Protein Concentrate 40% Made of Milk of Immunized Cows to Aid in the Prevention of Relapse of Clostridium Difficile-Diarrhea

NCT00177775
View directory record Official record
Conditions
Positive C-Diff Culture
Interventions
MucoMilk product
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 16, 2008 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Efficacy of Anti-CFA/I and CfaE Bovine Milk Immunoglobulin Against Challenge With H10407 ETEC Expressing CFA/I

NCT00435526
View directory record Official record
Conditions
Diarrhea
Interventions
anti-CFA/I bovine IgG, and anti-CfaE bovine IgG
Biological
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 45 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 14, 2007 · Synced Sep 7, 2026, 3:17 AM EDT
Recruiting Phase 3 Interventional

VE303 for Prevention of Recurrent Clostridioides Difficile Infection

NCT06237452
View directory record Official record
Conditions
Clostridium Difficile, Clostridium Difficile Infections, Clostridium Difficile Infection Recurrence, Clostridioides Difficile Infection, Clostridioides Difficile Infection Recurrence, CDI, C. Diff Infection, Recurrent Clostridium Difficile Infection, C.Difficile Diarrhea, Diarrhea Infectious
Interventions
VE303, Placebo
Biological
Lead sponsor
Vedanta Biosciences, Inc.
Industry
Eligibility
12 Years and older
Enrollment
852 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
84
States / cities
Huntsville, Alabama • Chandler, Arizona • Phoenix, Arizona + 73 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2026 · Synced Sep 7, 2026, 3:17 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of Traveler's Diarrhea Vaccine Patch

NCT01067781
View directory record Official record
Conditions
Diarrhea
Interventions
Heat-Labile Enterotoxin of E. coli (LT), Placebo
Biological
Lead sponsor
Intercell USA, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
5
States / cities
Anaheim, California • South Miami, Florida • Lenexa, Kansas + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2020 · Synced Sep 7, 2026, 3:17 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Rash & Diarrhea Prophylaxis With Capivasertib

NCT07426822
View directory record Official record
Conditions
Metastatic HR+/HER2- Breast Cancer
Interventions
Capivasertib, Loperamide, Fulvestrant, Ceterizine
Drug
Lead sponsor
Maryam Lustberg
Other
Eligibility
18 Years and older
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 7, 2026, 3:17 AM EDT
Terminated Phase 2 Interventional

For Prevention of Diarrhea in Patients Diagnosed With Metastatic Colorectal Cancer Treated With Chemotherapy

NCT00037180
View directory record Official record
Conditions
Neoplasm Metastasis, Colorectal Neoplasms
Interventions
Celecoxib, Irinotecan, 5-fluorouracil, Leucovorin
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
212 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
12
States / cities
Mobile, Alabama • Fort Lauderdale, Florida • Port Saint Lucie, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2008 · Synced Sep 7, 2026, 3:17 AM EDT