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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:20 AM EDT

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Showing 1–24 of 96 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Oral Vancomycin Clear all
Completed Phase 2 Interventional Results available

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

NCT02765256
View directory record Official record
Conditions
Crohn's Disease
Interventions
Fluconazole, Vancomycin, Neomycin, Ciprofloxacin, Polyethylene Glycol 3350, Promethazine, Fluconazole placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 6, 2024 · Synced Oct 21, 2026, 5:20 AM EDT
Terminated Phase 1 Interventional

FMT for MDRO Colonization After Infection in Renal Transplant Recipients

NCT02922816
View directory record Official record
Conditions
Infection Due to Resistant Organism
Interventions
Fecal Microbiota Transplant (FMT), Bowel preparation, Stool or perirectal swab sampling, Fasting
Biological · Procedure · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 15, 2023 · Synced Oct 21, 2026, 5:20 AM 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 26, 2024 · Synced Oct 21, 2026, 5:20 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Responses to Rabies Vaccine in Adults With or Without Antibiotics

NCT03557008
View directory record Official record
Conditions
Rabies Human
Interventions
Rabies Vaccine, Metronidazole, Vancomycin, Neomycin Sulfate
Biological · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 49 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
2
States / cities
Atlanta, Georgia • Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 8, 2023 · Synced Oct 21, 2026, 5:20 AM EDT
Terminated Phase 2 Interventional Results available

Comparative Study of Ceftazidime-Avibactam Versus Standard of Care as Therapy in Febrile Neutropenic Adults With Cancer

NCT02732327
View directory record Official record
Conditions
Neoplasms, Febrile Neutropenia
Interventions
CAZ-AVI, Vancomycin, Linezolid, Cefepime, Meropenem, Piperacillin/tazobactam
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 21, 2017 · Synced Oct 21, 2026, 5:20 AM EDT
Withdrawn Phase 4 Interventional

Prospective Trial of Oral Vancomycin Therapy vs. Placebo for Prevention of CDI

NCT04241744
View directory record Official record
Conditions
CDI
Interventions
Vancomycin 125 MG po BID
Drug
Lead sponsor
Creighton University
Other
Eligibility
65 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Oct 21, 2026, 5:20 AM EDT
Completed Phase 4 Interventional Results available

Effect of Probiotic Supplementation on Endothelial Function

NCT01952834
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
GoodBelly Probiotic, Vancomycin
Dietary Supplement · Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
40 Years to 75 Years · Male only
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Milwauke, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 21, 2016 · Synced Oct 21, 2026, 5:20 AM EDT
Terminated Phase 4 Interventional

Use Of Oral Fidaxomicin Vs. Oral Vancomycin For Clostridium Difficile Infection In Patients With Spinal Cord Injury

NCT02355938
View directory record Official record
Conditions
Clostridium Difficile, Spinal Cord Injury
Interventions
Fidaxomicin 200 mg, Placebo, Vancomycin
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 13, 2016 · Synced Oct 21, 2026, 5:20 AM 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 22, 2019 · Synced Oct 21, 2026, 5:20 AM EDT
Terminated Phase 4 Interventional Results available

Comparing Oral Versus Parenteral Antimicrobial Therapy

NCT05977868
View directory record Official record
Conditions
Endovascular Infection, Bone and Joint Infection, Skin and Soft Tissue Infection, Pulmonary Infection, Gastrointestinal Infection, Genitourinary Infection
Interventions
Amoxicillin, amoxicillin-clavulanate, cefadroxil, cefpodoxime, cefalexin, ciprofloxacin, delafloxacin, doxycycline, levofloxacin, linezolid, Ampicillin, ampicillin-sulbactam, cefazolin, cefepime, ceftaroline, ceftazidime, ceftazidime-avibactam, dalbavancin, daptomycin, ertapenem
Drug
Lead sponsor
West Virginia University
Other
Eligibility
18 Years and older
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Oct 21, 2026, 5:20 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 26, 2022 · Synced Oct 21, 2026, 5:20 AM EDT
Not listed 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 25, 2024 · Synced Oct 21, 2026, 5:20 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

First-in-human Study of VE303 in Healthy Adult Volunteers

NCT04236778
View directory record Official record
Conditions
Healthy Volunteers
Interventions
VE303, Oral Vancomycin
Drug
Lead sponsor
Vedanta Biosciences, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Oct 21, 2026, 5:20 AM EDT
Not listed Phase 2 Interventional

Microbiota Transfer Therapy for Children and Adults With Both Pitt Hopkins Syndrome and Gastrointestinal Disorders

NCT06321796
View directory record Official record
Conditions
Pitt Hopkins Syndrome
Interventions
MTP-101P, Vancomycin, Magnesium Citrate, Antacid, Placebo MTP-101P, Placebo Vancomycin
Combination Product
Lead sponsor
Gut-Brain-Axis Therapeutics Inc.
Other
Eligibility
5 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 20, 2024 · Synced Oct 21, 2026, 5:20 AM EDT
Completed Not applicable Interventional Results available

Pharmacokinetics and Safety of Tigecycline in the Treatment of Clostridium Difficile Associated Diarrhea (CDAD)

NCT01401023
View directory record Official record
Conditions
Diarrhea, Clostridium Difficile
Interventions
Tigecycline
Drug
Lead sponsor
Gary E. Stein, Pharm.D.
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
2
States / cities
East Lansing, Michigan • Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 10, 2018 · Synced Oct 21, 2026, 5:20 AM EDT
Completed Phase 1 Interventional Results available

A Pilot Study of Vancomycin or Metronidazole in Patients With Primary Sclerosing Cholangitis

NCT01085760
View directory record Official record
Conditions
Primary Sclerosing Cholangitis
Interventions
Vancomycin, Metronidazole
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 19, 2013 · Synced Oct 21, 2026, 5:20 AM 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 8, 2025 · Synced Oct 21, 2026, 5:20 AM EDT
Terminated Early Phase 1 Interventional

Patients Response to Early Switch To Oral:Osteomyelitis Study

NCT02099240
View directory record Official record
Conditions
Osteomyelitis
Interventions
oral antibiotics, intravenous antibiotics
Drug · Procedure
Lead sponsor
Julio Ramirez
Other
Eligibility
18 Years to 100 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 6, 2021 · Synced Oct 21, 2026, 5:20 AM EDT
Completed Phase 4 Interventional

Safety and Efficacy Study of Ceftaroline Versus a Comparator in Pediatric Subjects With Complicated Community Acquired Pneumonia (CABP)

NCT01669980
View directory record Official record
Conditions
Infections, Pneumonia
Interventions
Ceftaroline fosamil, IV Ceftriaxone and Vancomycin
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
2 Months to 18 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
13
States / cities
Long Beach, California • Oakland, California • Orange County, California + 10 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2015 · Synced Oct 21, 2026, 5:20 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 9, 2025 · Synced Oct 21, 2026, 5:20 AM EDT
Completed Phase 2 Interventional Results available

Evaluation of CRS3123 vs. Oral Vancomycin in Adult Patients With Clostridioides Difficile Infection

NCT04781387
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
CRS3123, Active Comparator
Drug
Lead sponsor
Crestone, Inc
Industry
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
18
States / cities
Fullerton, California • Lancaster, California • Mission Hills, California + 14 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 21, 2026, 5:20 AM 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 6, 2026 · Synced Oct 21, 2026, 5:20 AM 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 14, 2026 · Synced Oct 21, 2026, 5:20 AM EDT
Completed Phase 3 Interventional Results available

Dalbavancin for the Treatment of Acute Bacterial Skin and Skin Structure Infections in Children, Known or Suspected to be Caused by Susceptible Gram-positive Organisms, Including MRSA

NCT02814916
View directory record Official record
Conditions
Methicillin-Resistant Staphylococcus Aureus, Bacterial Infections, Staphylococcal Skin Infections
Interventions
Dalbavancin, Vancomycin, Oxacillin, Flucloxacillin, Cefadroxil, Clindamycin
Drug
Lead sponsor
AbbVie
Industry
Eligibility
0 Years to 17 Years
Enrollment
199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
15
States / cities
Mobile, Alabama • Phoenix, Arizona • La Palma, California + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 21, 2026, 5:20 AM EDT