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Showing 1–24 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Bacterial colonization Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Impact of Chlorhexidine Cleansing on Bacteria Colonizing the Umbilical Cord of Infants in Bangladesh

NCT00719329
View directory record Official record
Conditions
Infection
Interventions
Chlorhexidine 4.0%, Dry Cord Care
Drug · Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
Up to 7 Days
Enrollment
1,931 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 19, 2012 · Synced Sep 11, 2026, 10:27 PM EDT
Completed No phase listed Observational

S. Aureus Colonization in Atopic Dermatitis

NCT02091037
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
Up to 18 Years
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 9, 2022 · Synced Sep 11, 2026, 10:27 PM EDT
Completed Phase 3 Interventional

Safety and Efficacy Study of Angiotech Central Venous Catheter to Prevent Bacterial Catheter Colonization

NCT00288418
View directory record Official record
Conditions
Bacterial Infections
Interventions
Central Venous Catheter
Device
Lead sponsor
Angiotech Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
960 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
21
States / cities
Birmingham, Alabama • Orange, California • San Diego, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2013 · Synced Sep 11, 2026, 10:27 PM EDT
Completed Not applicable Interventional

Functional Chewing Gum in Reduction of Gingival Inflammation

NCT03237624
View directory record Official record
Conditions
Gingivitis
Interventions
Functional Chitosan Chewing Gum, Control Chewing Gum, Oral hygiene measures
Device · Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Sep 11, 2026, 10:27 PM 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 11, 2026, 10:27 PM 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 11, 2026, 10:27 PM EDT
Completed Phase 2 Interventional Results available

Inulin for Infections in the Intensive Care Unit

NCT03865706
View directory record Official record
Conditions
Antibiotic Resistant Infection, Nosocomial Infection, Pathogen Transmission, Nutrition Disorders, Critical Illness, Sepsis
Interventions
Inulin Oral Suspension, Placebo Oral Suspension, Broad-spectrum antibiotics
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 18, 2025 · Synced Sep 11, 2026, 10:27 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Collection of Dental Plaque and Saliva for Studies of Bacterial Colonization of Teeth

NCT00098267
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
3 Months and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 11, 2026, 10:27 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Gastric Bacterial Colonization of Preterm Neonates

NCT05385939
View directory record Official record
Conditions
Microbial Colonization, Preterm Birth
Interventions
Observational
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
1 Week to 6 Months
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated May 22, 2022 · Synced Sep 11, 2026, 10:27 PM EDT
Withdrawn No phase listed Observational

Reduced Ventilator-Free Days and Bacterial Colonization of Sub-Glottic Secretions

NCT02311296
View directory record Official record
Conditions
Pneumonia
Interventions
Not listed
Lead sponsor
University of Tennessee, Chattanooga
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Chattanooga, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 24, 2020 · Synced Sep 11, 2026, 10:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study on Use of Xylitol-wipes to Prevent Dental Caries

NCT01468727
View directory record Official record
Conditions
Dental Caries
Interventions
xylitol wipe, placebo wipe
Dietary Supplement
Lead sponsor
University of California, San Francisco
Other
Eligibility
6 Months to 35 Months
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 15, 2011 · Synced Sep 11, 2026, 10:27 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Mechanisms of Impaired HIV-associated B Cell and Pneumococcal Vaccine Responses

NCT02012309
View directory record Official record
Conditions
HIV, Pneumococcal Infections, Pneumococcal Vaccines
Interventions
PCV-13, PPSV-23
Biological
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2021
U.S. locations
3
States / cities
Aurora, Colorado • Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 17, 2020 · Synced Sep 11, 2026, 10:27 PM EDT
Terminated Not applicable Interventional Results available

The Efficacy of "MediHoney" to Facilitate Catheter Exit-Site Surgical Wound Healing

NCT01230489
View directory record Official record
Conditions
Renal Failure
Interventions
MediHoney
Biological
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 90 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Sep 11, 2026, 10:27 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 11, 2026, 10:27 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Bacterial Decolonization to Prevent Radiation Dermatitis

NCT03883828
View directory record Official record
Conditions
Radiation Dermatitis
Interventions
Chlorhexidine gluconate solution, Mupirocin Ointment
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Nov 12, 2023 · Synced Sep 11, 2026, 10:27 PM 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 11, 2026, 10:27 PM EDT
Completed Phase 2 Interventional

UTI Prophylaxis Using Bacterial Interference Following SCI

NCT00037921
View directory record Official record
Conditions
Urinary Tract Infections
Interventions
Bacterial colonization
Procedure
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 6, 2010 · Synced Sep 11, 2026, 10:27 PM 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 11, 2026, 10:27 PM EDT
Completed Not applicable Interventional

Diagnostic Stewardship for Ventilator Associated Pneumonia

NCT05989269
View directory record Official record
Conditions
Ventilator Associated Pneumonia
Interventions
Modified lab reporting
Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
3
States / cities
Baltimore, Maryland • Houston, Texas • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Sep 11, 2026, 10:27 PM EDT
Terminated Not applicable Interventional Results available

Chitosan Dressings to Facilitate Safe Effective Debridement of Chronic Wounds & Minimize Wound Bacterial Re-colonization

NCT01035944
View directory record Official record
Conditions
Wound Debridement
Interventions
HemCon Dressings and HemCon ChitoGauze; chitosan-based., Gauze and saline dressings.
Device
Lead sponsor
HemCon Medical Technologies, Inc
Industry
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 30, 2014 · Synced Sep 11, 2026, 10:27 PM EDT
Completed Phase 2 Interventional

Safety and Efficacy Study of Lactobacillus Administered Vaginally in Women With Bacterial Vaginosis

NCT00635622
View directory record Official record
Conditions
Bacterial Vaginosis
Interventions
LACTIN-V, Placebo control substance
Drug
Lead sponsor
Osel, Inc.
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2009 · Synced Sep 11, 2026, 10:27 PM EDT
Completed No phase listed Observational

Impact of Respiratory Pathogens in Infants

NCT01789268
View directory record Official record
Conditions
Respiratory Tract Infection
Interventions
Respiratory Inductive Plethysmography
Device
Lead sponsor
University of Rochester
Other
Eligibility
0 Days to 3 Years
Enrollment
267 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 1, 2022 · Synced Sep 11, 2026, 10:27 PM EDT
Completed Not applicable Interventional Results available

Evaluation of the Effectiveness of Daily Pulse Lavage Therapy in Chronic Wounds

NCT01500746
View directory record Official record
Conditions
Chronic Wounds
Interventions
Pulse lavage treatment, Dressing changes
Procedure · Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 85 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 13, 2014 · Synced Sep 11, 2026, 10:27 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of the Composition of Dental Plaque

NCT00001726
View directory record Official record
Conditions
Dental Caries, Dental Plaque, Periodontal Disease
Interventions
Not listed
Lead sponsor
National Institute of Dental and Craniofacial Research (NIDCR)
NIH
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 11, 2026, 10:27 PM EDT