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Showing 1–24 of 772 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Gram-positive Bacterial Infections Clear all
Not yet recruiting Phase 1 Interventional

Xylitol Use for Decolonization of C. Difficile in Patients With IBD

NCT05852587
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Clostridioides Difficile Infection
Interventions
Xylitol, Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2033
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Jul 22, 2026, 3:36 AM EDT
Not listed Phase 2 Interventional

Gut Microbiota Changes After Fecal Microbiota Transplantation

NCT02557685
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Fecal Microbiota Transplantation
Biological
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 90 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Sep 22, 2015 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Evaluating the Impact of the 13-valent Pneumococcal Conjugate Vaccine (13vPnC) in Alaskan Native Children.

NCT00743652
View directory record Official record
Conditions
Pneumococcal Disease, 13-valent Pneumococcal Vaccine
Interventions
13-valent Pneumococcal Conjugate Vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
42 Days to 5 Years
Enrollment
373 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
21
States / cities
Akiak, Alaska • Bethel, Alaska • Chefornak, Alaska + 18 more
Source: ClinicalTrials.gov public record
Updated Mar 14, 2012 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 1 Interventional

Skin Cleansing With Chlorhexidine to Decrease Hospital Acquired Infections

NCT00130221
View directory record Official record
Conditions
Nosocomial Infection, Bacteremia, Sepsis, Pneumonia, Urinary Tract Infection, Clostridium Infection
Interventions
2% chlorhexidine gluconate impregnated cloth, Daily bathing with Bar soap
Drug · Other
Lead sponsor
Cook County Health
Government
Eligibility
16 Years and older
Enrollment
208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 17, 2023 · Synced Jul 22, 2026, 3:36 AM EDT
Recruiting No phase listed Observational

Transmission and Acquisition of Nontuberculous Mycobacteria Outbreak Investigation (TrANsMIt)

NCT06155747
View directory record Official record
Conditions
Nontuberculous Mycobacterial Pulmonary Infection, Outbreak Investigation, Healthcare Associated Infection, Mycobacterium Infections
Interventions
Epidemiologic investigation
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
1 Month to 99 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2036
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Not applicable Interventional

Bleach Bath Treatment of Adults With Atopic Dermatitis

NCT01996150
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
bleach bath (sodium hypochlorite)
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 65 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 16, 2018 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 2 Interventional

A Comparison of Three Drug Combinations Containing Clarithromycin in the Treatment of Mycobacterium Avium Complex (MAC) Disease in Patients With AIDS

NCT00001058
View directory record Official record
Conditions
Mycobacterium Avium-intracellulare Infection, HIV Infections
Interventions
Indinavir sulfate, Ritonavir, Ethambutol hydrochloride, Clarithromycin, Rifabutin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
246 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1999
U.S. locations
33
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 19 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety and Pharmacokinetics of NTM-1633 vs Placebo Administered Intravenously in Healthy Adults

NCT03603665
View directory record Official record
Conditions
Botulism
Interventions
NTM-1633, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Jul 22, 2026, 3:36 AM EDT
Terminated Phase 2 Interventional Results available

The Clostridioides Difficile Trial of REC-3964

NCT06536465
View directory record Official record
Conditions
Recurrent Clostridioides Difficile Infection
Interventions
REC-3964
Drug
Lead sponsor
Recursion Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 115 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
Toms River, New Jersey • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 16, 2025 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of 3 Versus 10 Days of Antibiotics in Skin Abscesses After Surgical Drainage

NCT02024867
View directory record Official record
Conditions
Skin Disease, Bacterial, Abscess
Interventions
Trimethoprim-Sulfamethoxazole
Drug
Lead sponsor
Lucy Holmes, MD
Other
Eligibility
3 Months to 17 Years
Enrollment
249 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 18, 2015 · Synced Jul 22, 2026, 3:36 AM EDT
Active, not recruiting No phase listed Observational

REMBRANDT: REcovery of the MicroBiome fRom Antibiotics for Dental implanTs

NCT05622721
View directory record Official record
Conditions
Dysbiosis, Clostridium Difficile, Pet-Human Bonding, Antibiotic-Associated Colitis
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Not applicable Interventional

Clinical Decision Support Tool for Vancomycin Dosing in Children

NCT04911270
View directory record Official record
Conditions
Gram-Positive Bacterial Infections, Vancomycin, Pharmacokinetics, Pharmacodynamics
Interventions
Computer Decision Support Tool Intervention Group, Matched Historical Controls
Device · Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
Up to 18 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 13, 2025 · Synced Jul 22, 2026, 3:36 AM EDT
Completed No phase listed Observational

Clinical Performance of the Checkable Medical At-Home Strep A Test

NCT05107362
View directory record Official record
Conditions
Streptococcus Pyogenes Infection, Pharyngitis, Respiratory Tract Infections
Interventions
untrained lay user performs investigational diagnostic test
Diagnostic Test
Lead sponsor
Checkable Medical Inc
Industry
Eligibility
5 Years and older
Enrollment
1,347 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
22
States / cities
Beverly Hills, California • Jacksonville, Florida • Miami, Florida + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2023 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immune Response and Safety Comparison of 3 Lots of GSK Biologicals' DTaP-IPV Candidate Vaccine to DTaP + IPV Vaccines

NCT00148941
View directory record Official record
Conditions
Tetanus, Acellular Pertussis, Diphtheria
Interventions
SB213503 lot 1, SB213503 lot 2, SB213503 lot 3, Infanrix, IPOL, M-M-R II
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
4 Years to 6 Years
Enrollment
4,209 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
24
States / cities
Little Rock, Arkansas • Antioch, California • Daly City, California + 20 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety of Ceftaroline Versus Linezolid in Subjects With Complicated Skin and Skin Structure Infections

NCT00633152
View directory record Official record
Conditions
Bacterial Infection
Interventions
ceftaroline, linezolid, Aztreonam
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
13
States / cities
Buena Park, California • Long Beach, California • Los Angeles, California + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 1 Interventional Results available

Safety and Tolerability Study of MEDI-551, a B-cell Depleting Agent, to Treat Relapsing Forms of Multiple Sclerosis

NCT01585766
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing Forms
Interventions
MEDI-551 30 MG-IV, MEDI-551 60 MG-SC, PLACEBO-IV-SC, MEDI-551 100 MG-IV, MEDI-551 300 MG-SC, MEDI-551 600 MG-IV
Drug
Lead sponsor
MedImmune LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
9
States / cities
Scottsdale, Arizona • Long Beach, California • Sacramento, California + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2018 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of a Single Vaccination With a 4-Antigen Staphylococcus Aureus Vaccine (SA4Ag) in Healthy Adults Aged 18 to <65 Years

NCT02364596
View directory record Official record
Conditions
Staphylococcal Infections
Interventions
SA4Ag vaccine, Blood sample
Biological · Procedure
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 64 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
2
States / cities
Hollywood, Florida • South Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 2, 2015 · Synced Jul 22, 2026, 3:36 AM EDT
Completed No phase listed Observational Results available

Evaluation of the 4th Generation QuantiFERON-TB Test (QFT-Plus) for the Detection of Tuberculosis Infection

NCT02687529
View directory record Official record
Conditions
Tuberculosis
Interventions
CST001
Device
Lead sponsor
QIAGEN Gaithersburg, Inc
Industry
Eligibility
18 Years to 80 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 18, 2019 · Synced Jul 22, 2026, 3:36 AM EDT
Recruiting Not applicable Interventional

Lifestyle and Recurrent Clostridioides Difficile Infection (CDI)

NCT07613645
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
Health counseling sessions, Diet (control diet), Diet (experimental diet)
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase I Study of Safety and Immunogenicity of the WRAIR HIV-1 Vaccine

NCT00412477
View directory record Official record
Conditions
HIV Infections
Interventions
HIV LFn-p24
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 45 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 9, 2018 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 3 Interventional Results available

ECOSPOR IV: An Open-Label Study Evaluating SER-109 in Recurrent Clostridioides Difficile Infection

NCT03183141
View directory record Official record
Conditions
Clostridioides Difficile Infection
Interventions
SER-109
Biological
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
263 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
97
States / cities
Dothan, Alabama • Sun City West, Arizona • Mather, California + 84 more
Source: ClinicalTrials.gov public record
Updated Apr 9, 2023 · Synced Jul 22, 2026, 3:36 AM EDT
Completed No phase listed Observational

Antimicrobial Drug Use and Resistant Staphylococcus Aureus

NCT01075451
View directory record Official record
Conditions
Staphylococcus Aureus
Interventions
Not listed
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated May 19, 2013 · Synced Jul 22, 2026, 3:36 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

This Study Evaluates the ALPCO Syphilis-T and Syphilis-NT CLIA Kits for Detecting Syphilis Antibodies in Serum and Plasma. Samples From At-risk, HIV-positive, Pregnant, and Healthy Individuals Will Assess Assay Performance Versus Established Comparator Tests.

NCT07089836
View directory record Official record
Conditions
Treponema Pallidum, Treponema Pallidum Infection, Syphilis Infection, Serum, Plasma, Blooddraw, Sexually Transmitted Infection (STI)
Interventions
ALPCO Syphilis-T, ALPCO Syphilis-NT CLIA Kits
Device
Lead sponsor
American Laboratory Products Company
Industry
Eligibility
13 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
6
States / cities
Lancaster, California • Los Angeles, California • North Miami, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Jul 22, 2026, 3:36 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Phase 1/2, Randomized, Placebo-controlled, Observer-blinded Trial To Evaluate The Safety, Tolerability, And Immunogenicity Of A Multivalent Group B Streptococcus Vaccine In Healthy Adults 18 To 49 Years Of Age

NCT03170609
View directory record Official record
Conditions
Group B Streptococcal Infections
Interventions
Multivalent group B streptococcus vaccine, Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 49 Years
Enrollment
365 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
4
States / cities
Stockbridge, Georgia • Bardstown, Kentucky • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 1, 2019 · Synced Jul 22, 2026, 3:36 AM EDT