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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: oral vancomycin Clear all
Recruiting Phase 1 Interventional

Vancomycin Study in Multiple Sclerosis (MS)

NCT05539729
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Vancomycin, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 9, 2025 · Synced Sep 13, 2026, 5:15 PM 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 13, 2026, 5:15 PM EDT
Completed No phase listed Observational

Real-world Evaluation of Bezlotoxumab for the Management of Clostridioides Difficile Infection

NCT04317963
View directory record Official record
Conditions
Clostridium Difficile Infection, Clostridium Difficile Infection Recurrence
Interventions
Bezlotoxumab, Standard CDI treatment
Biological · Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 27, 2023 · Synced Sep 13, 2026, 5:15 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

CARNIVAL Study: Gut Flora Dependent Metabolism of Dietary CARNItine and Phosphatidylcholine and cardioVAscuLar Disease

NCT01731236
View directory record Official record
Conditions
Dietary Modification
Interventions
Carnitine, Choline, Antibiotics, Choline and Aspirin, Carnitine and Aspirin
Dietary Supplement · Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2029
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 4 Interventional

Oral Vancomycin to Prevent Recurrent C Difficile Infection With Antibiotics

NCT03466502
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Oral Vancomycin
Drug
Lead sponsor
University of Nevada, Reno
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Reno, Nevada
Source: ClinicalTrials.gov public record
Updated Nov 27, 2023 · Synced Sep 13, 2026, 5:15 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

Vancomycin for Primary Sclerosing Cholangitis

NCT03710122
View directory record Official record
Conditions
Primary Sclerosing Cholangitis
Interventions
Vancomycin, Placebo
Drug · Other
Lead sponsor
Elizabeth Carey
Other
Eligibility
18 Years to 76 Years
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
4
States / cities
Phoenix, Arizona • Tempe, Arizona • Jacksonville, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Sep 13, 2026, 5:15 PM EDT
Terminated Phase 1 Interventional

Probiotic Lactobacillus GG to Eliminate VRE Colonization

NCT00756262
View directory record Official record
Conditions
Vancomycin Resistant Enterococcal Colonization
Interventions
Lactobacillus GG or Culturelle
Biological
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 4, 2024 · Synced Sep 13, 2026, 5:15 PM 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 10, 2018 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 2 Interventional Results available

Gut Decontamination In Pediatric Allogeneic Hematopoietic

NCT02641236
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplantation (HSCT), Acute GVH Disease
Interventions
Vancomycin-polymyxin B
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
4 Years to 30 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 14, 2023 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Randomized Trial of Preoperative Prophylactic Antibiotics Prior to Kidney Stone Surgery (Percutaneous Nephrolithotomy [PCNL])

NCT02384200
View directory record Official record
Conditions
Nephrolithiasis, Urinary Tract Infections
Interventions
nitrofurantoin monohydrate/macrocrystalline capsules, ampicillin, gentamicin, vancomycin, ceftriaxone
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
7
States / cities
Phoenix, Arizona • San Diego, California • San Francisco, California + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Sep 13, 2026, 5:15 PM EDT
Recruiting Phase 2 Interventional

Further MT for Antibiotic-Resistant Bacterial Colonization

NCT05835206
View directory record Official record
Conditions
Intestinal Multi-drug Resistant Organism Colonization
Interventions
Microbiome Therapeutic, Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
6
States / cities
Atlanta, Georgia • Johns Creek, Georgia
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 2 Interventional Results available

Persistent Methicillin Resistant Staphylococcus Aureus Eradication Protocol (PMEP)

NCT01594827
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Inhaled Vancomycin, Placebo (Sterile Water), Rifampin, Trimethoprim/Sulfamethoxazole (TMP/SMX), Doxycycline, Mupirocin Intranasal Creme, 4% chlorhexidine gluconate liquid skin cleanser
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
12 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
2
States / cities
Baltimore, Maryland • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 25, 2019 · Synced Sep 13, 2026, 5:15 PM EDT
Suspended Phase 1Phase 2 Interventional Accepts healthy volunteers

Safety and Efficacy of Oral Administration of the Phage Cocktail, VRELysin™, In Healthy and VRE-Colonized Subjects

NCT05715619
View directory record Official record
Conditions
Vancomycin-Resistant Enterococcal Colonization
Interventions
VRELysin™, Placebo
Biological · Other
Lead sponsor
Intralytix, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 2 Interventional Results available

Pilot Study of Fundamental Modification of the Gut Microbiota in the Treatment of Refractory Crohn's Disease

NCT03476317
View directory record Official record
Conditions
Crohn Disease
Interventions
Vancomycin, Neomycin, Ciprofloxacin, Polyethylene Glycol 3350, Fluconazole
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
6 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 8, 2022 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 4 Interventional Results available

Nosocomial Pneumonia With Suspected Or Proven Methicillin-Resistant Staphylococcus Aureus (MRSA)

NCT00084266
View directory record Official record
Conditions
Methicillin Resistant Staphylococcus Aureus (MRSA)
Interventions
linezolid (Zyvox), vancomycin
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
108
States / cities
Birmingham, Alabama • Huntsville, Alabama • Montgomery, Alabama + 71 more
Source: ClinicalTrials.gov public record
Updated Jan 31, 2012 · Synced Sep 13, 2026, 5:15 PM EDT
Terminated Phase 2 Interventional Results available

Nivolumab (Anti-PD1), Tadalafil and Oral Vancomycin in People With Refractory Primary Hepatocellular Carcinoma or Liver Dominant Metastatic Cancer From Colorectal or Pancreatic Cancers

NCT03785210
View directory record Official record
Conditions
Hepatocellular Carcinoma, Hepatocellular Cancer, Metastatic Pancreatic Cancer, Metastatic Colorectal Cancer, Liver Metastasis
Interventions
nivolumab, tadalafil, oral vancomycin
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 22, 2026 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 4 Interventional Results available

Impact of Oral Antibiotic Treatment on C. Difficile

NCT02057198
View directory record Official record
Conditions
C. Difficile, Diarrhea, Enterocolitis
Interventions
Fidaxomicin, Metronidazole, Vancomycin
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Dalbavancin for the Treatment of Acute Bacterial Skin and Skin Structure Infections

NCT01339091
View directory record Official record
Conditions
Abscess, Wound Infection, Surgical Site Infection, Cellulitis
Interventions
Dalbavancin, Vancomycin / Linezolid
Drug
Lead sponsor
Durata Therapeutics Inc., an affiliate of Allergan plc
Industry
Eligibility
18 Years to 85 Years
Enrollment
573 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
55
States / cities
Anaheim, California • Azusa, California • Bellflower, California + 50 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2014 · Synced Sep 13, 2026, 5:15 PM EDT
Active, not recruiting Phase 2 Interventional

Microbiota Transplant Therapy for Children With Both Autism Spectrum Disorder and Gastrointestinal Disorders

NCT06503978
View directory record Official record
Conditions
Autism Spectrum Disorder, Gastro-Intestinal Disorder, Constipation, Diarrhea
Interventions
MTP-101P, Vancomycin, Miralax, Antacid, Placebo MTP-101P, Placebo Vancomycin
Combination Product
Lead sponsor
Gut-Brain-Axis Therapeutics Inc.
Other
Eligibility
4 Years to 18 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 24, 2024 · Synced Sep 13, 2026, 5:15 PM EDT
Terminated Phase 4 Interventional Results available

Early Antibiotics After Aspiration in ICU Patients

NCT05079620
View directory record Official record
Conditions
Aspiration, Aspiration Pneumonia
Interventions
Ceftriaxone, Amoxicillin clavulanic acid, Cefepime, Vancomycin, Levofloxacin
Drug
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 29, 2025 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 3 Interventional Results available

Delafloxacin vs Vancomycin and Aztreonam for the Treatment of Acute Bacterial Skin and Skin Structure Infections

NCT01984684
View directory record Official record
Conditions
Skin and Subcutaneous Tissue Bacterial Infections, Skin Structures and Soft Tissue Infections
Interventions
delafloxacin, vancomycin, aztreonam
Drug
Lead sponsor
Melinta Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
31
States / cities
Mobile, Alabama • Montgomery, Alabama • Anaheim, California + 28 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2017 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 2 Interventional Results available

Efficacy of Oral Vancomycin Prophylaxis for Prevention of Recurrent Clostridium Difficile Infection

NCT03462459
View directory record Official record
Conditions
Recurrent Clostridium Difficile Infection, Clostridium Difficile Infection, CDI, C.Difficile Diarrhea, C. Diff Colitis, C.Difficile Colitis
Interventions
Vancomycin, Placebo
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 24, 2025 · Synced Sep 13, 2026, 5:15 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

Comparison of Cadazolid Versus Vancomycin in Children With Clostridium Difficile-associated Diarrhea (CDAD)

NCT03105479
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Cadazolid, Vancomycin capsule, Vancomycin solution
Drug
Lead sponsor
Actelion
Industry
Eligibility
Up to 18 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
5
States / cities
Idaho Falls, Idaho • Chicago, Illinois • Shreveport, Louisiana + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2025 · Synced Sep 13, 2026, 5:15 PM EDT
Completed Phase 3 Interventional Results available

A Study to Investigate the Safety and Efficacy of Fidaxomicin (Oral Suspension or Tablets) and Vancomycin (Oral Liquid or Capsules) in Pediatric Subjects With Clostridium Difficile-associated Diarrhea (CDAD)

NCT02218372
View directory record Official record
Conditions
Clostridium Difficile-associated Diarrhea (CDAD)
Interventions
Fidaxomicin oral suspension, Fidaxomicin tablets, Vancomycin oral liquid, Vancomycin capsules
Drug
Lead sponsor
Astellas Pharma Europe B.V.
Industry
Eligibility
Up to 17 Years
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
14
States / cities
Orange, California • Chicago, Illinois • Indianapolis, Indiana + 11 more
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Sep 13, 2026, 5:15 PM EDT