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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Colonization Clear all
Terminated Not applicable Interventional Results available

Asymptomatic Colonization With S. Aureus After Therapy With Linezolid or Clindamycin for Acute Skin Infections

NCT01619410
View directory record Official record
Conditions
Skin Diseases, Bacterial, Abscess
Interventions
Linezolid, Clindamycin
Biological
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
2
States / cities
Atlanta, Georgia • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 7, 2019 · Synced Sep 3, 2026, 5:12 AM EDT
Not listed Phase 4 Interventional

Study on the Reapplication of Chloraprep After Lower Extremity Surgery and Prior to Dressing Application

NCT02017145
View directory record Official record
Conditions
Lower Extremity Surgery, Surgical Site Infection, Bacterial Colonization, Surgical Antiseptic
Interventions
Chloraprep
Drug
Lead sponsor
Sanford Health
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2014
U.S. locations
1
States / cities
Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Feb 18, 2014 · Synced Sep 3, 2026, 5:12 AM EDT
Completed Phase 4 Interventional Results available

The Impact of Treating Staphylococcus Aureus Infection and Colonization on the Clinical Severity of Atopic Dermatitis

NCT00179959
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Sodium hypochlorite (bleach) baths, Mupirocin ointment, Water, Petrolatum Ointment
Drug
Lead sponsor
Northwestern University
Other
Eligibility
6 Months to 17 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 7, 2014 · Synced Sep 3, 2026, 5:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Freeze Dried Strawberry Consumption on Gut Microbiota and Cardiovascular Health.

NCT03283969
View directory record Official record
Conditions
Microbial Colonization, Cardiovascular Diseases, Obesity
Interventions
Freeze Dried Strawberry Powder, Isocaloric powder
Other
Lead sponsor
University of California, Davis
Other
Eligibility
40 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2022 · Synced Sep 3, 2026, 5:12 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Feasibility and Safety Study of Parent-to-Child Nasal Microbiota Transplant

NCT05695196
View directory record Official record
Conditions
Staphylococcus Aureus, Microbial Colonization, Neonatal Infection
Interventions
nasal microbiota transplant (NMT), Placebo
Biological
Lead sponsor
Johns Hopkins University
Other
Eligibility
Up to 60 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Sep 3, 2026, 5:12 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The Effect of Surface Acoustic Waves on the Prevention of Colonization in Longterm Indwelling Urinary Caatheters

NCT03090373
View directory record Official record
Conditions
Baacterial Colonization, Urinary Tract Infections
Interventions
UroShield
Device
Lead sponsor
Rosenblum, Jonathan I., DPM
Individual
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Elmsford, New York
Source: ClinicalTrials.gov public record
Updated Mar 23, 2017 · Synced Sep 3, 2026, 5:12 AM EDT
Completed Not applicable Interventional

Theraworx Bath Wipes Versus Standard Bath Wipes in the Reduction of Vancomycin-Resistant Enterococci

NCT02241005
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplantation, Vancomycin-Resistant Enterococci
Interventions
Theraworx™ bath wipes, Standard bath wipes
Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 21 Years
Enrollment
159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 5, 2017 · Synced Sep 3, 2026, 5:12 AM EDT
Completed Phase 1 Interventional

A Study of Doripenem in Infants Less Than 12 Weeks of Age

NCT01381848
View directory record Official record
Conditions
Bacterial Infections
Interventions
Doripenem
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
Up to 12 Weeks
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
7
States / cities
Little Rock, Arkansas • Orange, California • Royal Oak, Michigan + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 9, 2013 · Synced Sep 3, 2026, 5:12 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Comparing Single Versus Repeat NMT on the Diversity of the Neonatal Nasal Microbiome

NCT06283355
View directory record Official record
Conditions
Staphylococcus Aureus, Microbial Colonization, Neonatal Infection
Interventions
Nasal Microbiota Transplant (NMT), Placebo
Biological
Lead sponsor
Johns Hopkins University
Other
Eligibility
0 Years to 60 Years
Enrollment
175 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Sep 3, 2026, 5:12 AM EDT
Not listed Not applicable Interventional

Use of Recombinant Human Lactoferrin in Long-Term Care Patients With Feeding Tubes With Clostridium Difficile.

NCT00377078
View directory record Official record
Conditions
Clostridium Difficile
Interventions
recombinant human lactoferrin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 14, 2006 · Synced Sep 3, 2026, 5:12 AM EDT
Recruiting No phase listed Observational

Understanding the Burn Wound Microbiome: Comparing Traditional Wound Cultures to Next Generation Sequencing Technology

NCT05275335
View directory record Official record
Conditions
Microbial Colonization, Burns
Interventions
Not listed
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 100 Years
Enrollment
400 participants
Timeline
2022 – 2026
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 14, 2025 · Synced Sep 3, 2026, 5:12 AM EDT
Enrolling by invitation No phase listed Observational

Studies of the Human Microbiome in Clinical Center Patients

NCT01933620
View directory record Official record
Conditions
Multidrug-resistant Colonization
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
2 Years to 120 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 3, 2026, 5:12 AM EDT
Completed No phase listed Observational

Decreasing Antibiotic Use in Infants With Suspected Ventilator-associated Infection

NCT03041207
View directory record Official record
Conditions
Ventilator Associated Pneumonia, Nosocomial Infections in Children, Microbial Colonization
Interventions
Development and implementation of an antibiotic guideline
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
Up to 3 Years
Enrollment
555 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
22
States / cities
Tucson, Arizona • Little Rock, Arkansas • Los Angeles, California + 19 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2019 · Synced Sep 3, 2026, 5:12 AM EDT
Completed No phase listed Observational

Characterizing and Comparing the Profile of Microorganisms From Specific Body Sites and Environmental Surfaces in Newly Disinfected Patient Rooms

NCT01803100
View directory record Official record
Conditions
Bacterial Infection
Interventions
No intervention
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 25, 2015 · Synced Sep 3, 2026, 5:12 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Cutibacterium Dermal Colonization: Implications for Total Hip Arthroplasty

NCT03849885
View directory record Official record
Conditions
Degenerative Osteoarthritis
Interventions
Benzoyl peroxide gel
Drug
Lead sponsor
Colorado Joint Replacement
Other
Eligibility
18 Years to 85 Years
Enrollment
496 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 9, 2023 · Synced Sep 3, 2026, 5:12 AM EDT
Not listed Not applicable Interventional

Umbilical Cord Care for the Prevention of Colonization

NCT01893060
View directory record Official record
Conditions
Line Insertion Site, Central Line-associated Bloodstream Infection (CLABSI)
Interventions
Povidone-Iodine, Chlorhexidine gluconate, Pluronic Cream, control
Drug · Other
Lead sponsor
University of Virginia
Other
Eligibility
Up to 7 Days
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 1, 2013 · Synced Sep 3, 2026, 5:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bacterial Contamination of Workwear

NCT01192841
View directory record Official record
Conditions
Bacterial Contamination of Physician Attire
Interventions
Physician uniform
Other
Lead sponsor
Denver Health and Hospital Authority
Other
Eligibility
Not listed
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 31, 2010 · Synced Sep 3, 2026, 5:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Microbial Colonization in Three Dimensional (3D) Printed Orthodontic Clear Aligners

NCT07143370
View directory record Official record
Conditions
Orthodontic Aligner, Microbial Colonization
Interventions
Thermoformed clear aligner, 3D printed clear aligner TC-85, 3D printed clear aligner TA-28
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 3, 2026, 5:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Airway Alkalinization and Nasal Colonization

NCT03078088
View directory record Official record
Conditions
Healthy Subjects, Cystic Fibrosis
Interventions
Tham, Saline
Drug
Lead sponsor
Lakshmi Durairaj
Other
Eligibility
16 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 29, 2020 · Synced Sep 3, 2026, 5:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Evaluation of NDV-3A Vaccine in Preventing S. Aureus Colonization

NCT03455309
View directory record Official record
Conditions
Staphylococcus Aureus
Interventions
NDV-3A, Placebo
Biological
Lead sponsor
NovaDigm Therapeutics, Inc.
Industry
Eligibility
17 Years to 35 Years · Male only
Enrollment
382 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Fort Benning, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 28, 2020 · Synced Sep 3, 2026, 5:12 AM EDT
Terminated No phase listed Observational

Impact of Mupirocin Decolonization on the Nasal Microbiome

NCT02045329
View directory record Official record
Conditions
Nasal Colonization With Staph Aureus
Interventions
Not listed
Lead sponsor
VA Eastern Colorado Health Care System
Federal
Eligibility
18 Years to 99 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 16, 2018 · Synced Sep 3, 2026, 5:12 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Dynamics of Colonization and Infection by Multidrug-Resistant Pathogens in Immunocompromised and Critically Ill Patients

NCT06258551
View directory record Official record
Conditions
Antimicrobial Drug Resistance, Antibiotic Resistant Infection, Clostridium Difficile, Carbapenem-Resistant Enterobacteriaceae Infection, Extended Spectrum Beta-Lactamase Producing Bacteria Infection, Vancomycin Resistant Enterococci Infection, Carbapenem Resistant Bacterial Infection, Vancomycin-Resistant Enterococcal Infection
Interventions
Not listed
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 13, 2024 · Synced Sep 3, 2026, 5:12 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Changes in Microbial Status From Dentate, Edentulous and After Dental Implant Placement

NCT06149585
View directory record Official record
Conditions
Edentulous Mouth, Periodontal Diseases, Periodontitis, Adult, Microbial Colonization
Interventions
Microbial Sampling
Other
Lead sponsor
Case Western Reserve University
Other
Eligibility
21 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 3, 2026, 5:12 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Streptococcus Pneumonia: Effects of PCV13 on Pneumococcal Carriage

NCT01109108
View directory record Official record
Conditions
Nasopharyngeal Carriage of S. Pneumoniae
Interventions
Not listed
Lead sponsor
Boston Medical Center
Other
Eligibility
Not listed
Enrollment
9,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Sep 3, 2026, 5:12 AM EDT