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Showing 1–24 of 130 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Sulfamethoxazole/trimethoprim Clear all
Terminated Phase 2 Interventional Results available

Early Methicillin-resistant Staphylococcus Aureus (MRSA) Therapy in Cystic Fibrosis (CF)

NCT01349192
View directory record Official record
Conditions
Cystic Fibrosis, Methicillin-resistant Staphylococcus Aureus
Interventions
Rifampin, Trimethoprim/Sulfamethoxazole, Minocycline, Mupirocin, chlorhexidine gluconate oral rinse, 2% Chlorhexidine solution wipes, Environmental Decontamination
Drug · Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
4 Years to 45 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
13
States / cities
Birmingham, Alabama • Aurora, Colorado • Gainesville, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated May 14, 2017 · Synced Sep 17, 2026, 4:17 AM EDT
Terminated Not applicable Interventional Results available

Randomized Controlled Trial of Antibiotics in the Management of Children With Community-Acquired Abscess

NCT01498744
View directory record Official record
Conditions
Abscess Soft Tissue, Methicillin-resistant Staphylococcus Aureus (MRSA) Infection, Skin Abscess
Interventions
Oral Clindamycin
Drug
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
1 Month to 17 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 24, 2016 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Antibiotic Resistance and Microbiome in Children Aged 6-59 Months in Nouna, Burkina Faso

NCT03187834
View directory record Official record
Conditions
Child Development
Interventions
Azithromycin, Amoxicillin, Cotrimoxazole, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
6 Months to 59 Months
Enrollment
252 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Sep 17, 2026, 4:17 AM EDT
Active, not recruiting Early Phase 1 Interventional

Collaborative Urological Prosthetics Investigation Directive Research Group

NCT05100654
View directory record Official record
Conditions
Erectile Dysfunction, Penile Prosthesis Infection
Interventions
Doxycycline, Ciprofloxacin, Augmentin, Bactrim
Drug
Lead sponsor
University of Chicago
Other
Eligibility
35 Years to 90 Years · Male only
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 1, 2026 · Synced Sep 17, 2026, 4:17 AM EDT
Recruiting Phase 2 Interventional

Early Vedolizumab as First-Line for Immune-Related Colitis Therapy Trial

NCT06841705
View directory record Official record
Conditions
Immune Checkpoint Inhibitor-Related Colitis
Interventions
Vedolizumab 300 MG Injection [Entyvio], Prednisone (and methylprednisolone), Prednisone Taper, Placebo Prednisone Capsules, Placebo Vedolizumab, Sulfamethoxazole-Trimethoprim, Placebo for Sulfamethoxazole-Trimethoprim
Drug · Other
Lead sponsor
Shilpa Grover, MD, MPH
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 3, 2025 · Synced Sep 17, 2026, 4:17 AM EDT
Recruiting Phase 4 Interventional

Assessing the Utility of Prophylactic Antibiotics at Time of Urethral Bulking Using Bulkamid (Bulkamid Study)

NCT06706362
View directory record Official record
Conditions
Stress Urinary Incontinence
Interventions
Bactrim or Macrobid, Placebo
Drug
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Sep 17, 2026, 4:17 AM EDT
Recruiting Phase 4 Interventional

Methenamine Hippurate Following Intradetrusor OnabotulinumtoxinA Injection

NCT06953271
View directory record Official record
Conditions
Overactive Bladder (OAB), Urinary Tract Infection (Diagnosis)
Interventions
Methenamine Hippurate, Typically prescribed oral antibiotic prophylaxis
Drug
Lead sponsor
Women and Infants Hospital of Rhode Island
Other
Eligibility
18 Years and older · Female only
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 17, 2026, 4:17 AM EDT
Withdrawn Phase 3 Interventional Accepts healthy volunteers

Comparison of Topical Therapies in Post op Endoscopic Sinus Surgery Patients

NCT03303677
View directory record Official record
Conditions
Chronic Rhinosinusitis (Diagnosis)
Interventions
Saline Nasal, Budesonide Nasal, Topical Antibacterial (Product)
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 29, 2018 · Synced Sep 17, 2026, 4:17 AM EDT
Terminated Phase 2 Interventional

Steroid Withdrawal in Pediatric Kidney Transplant Recipients

NCT00023244
View directory record Official record
Conditions
End-Stage Renal Disease
Interventions
Basiliximab, Cyclosporine, Tacrolimus, Sirolimus, Methylprednisolone, Prednisone, Bactrim
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Day to 20 Years
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
18
States / cities
Birmingham, Alabama • San Diego, California • Aurora, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2016 · Synced Sep 17, 2026, 4:17 AM EDT
Recruiting Phase 4 Interventional

Trimethoprim-sulfamethoxazole vs. Clindamycin for the Treatment of Children With Invasive MRSA Infections

NCT06982105
View directory record Official record
Conditions
Methicillin Resistant Staphylococcus Aureus, Osteomyelitis Acute, Septic Arthritis, Orbital Cellulitis, Facial Cellulitis, Mastoiditis, Cervical Adenitis, Retropharyngeal Abscess, Peritonsillar Abscess
Interventions
Trimethoprim Sulfamethoxazole
Drug
Lead sponsor
Indiana University
Other
Eligibility
2 Months to 18 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 17, 2026, 4:17 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Effects of Treatments on Atopic Dermatitis

NCT01631617
View directory record Official record
Conditions
Eczema, Dermatitis, Skin Diseases, Genetic, Dermatitis, Atopic, Skin Diseases
Interventions
Trimethoprim/sulfamethoxazole (TMP/SMZ), Cephalexin, Doxycycline, Sodium hypochlorite, Placebo capsules, Placebo Sodium hypochlorite
Drug · Other
Lead sponsor
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
NIH
Eligibility
2 Years to 50 Years
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Phase 1 Interventional

Phase I Study of Safety and Immunogenicity of ADU-623

NCT01967758
View directory record Official record
Conditions
Astrocytic Tumors, Glioblastoma Multiforme, Anaplastic Astrocytoma, Brain Tumor
Interventions
Cohort 1, Cohort 2, Cohort 3, Antibiotics
Biological · Drug
Lead sponsor
Providence Health & Services
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Sep 17, 2026, 4:17 AM EDT
Completed No phase listed Observational

Alternative Treatment Strategies for Stenotrophomonas Maltophilia Pneumonia

NCT06112938
View directory record Official record
Conditions
Stenotrophomonas Maltophilia Infection
Interventions
Antibiotic
Drug
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 27, 2025 · Synced Sep 17, 2026, 4:17 AM EDT
Not listed No phase listed Observational

Asymptomatic Bacteriuria & Risk of Urinary Tract Infection in Renal Transplants

NCT01349738
View directory record Official record
Conditions
Bacteriuria, Urinary Tract Infections, Asymptomatic Infections, Transplantation Infection
Interventions
Antibiotic
Drug
Lead sponsor
Rice, James C., M.D.
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Aug 31, 2011 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Trial of Septra for Uncomplicated Skin Abscesses in Patients at Risk for Community Acquired Methicillin-Resistant Staphylococcus Aureus Infection

NCT00822692
View directory record Official record
Conditions
Abscess, Methicillin-Resistant Staphylococcus Aureus Infection
Interventions
Trim/ Sulfa DS, placebo
Drug
Lead sponsor
59th Medical Wing
Federal
Eligibility
18 Years to 65 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Dec 20, 2015 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Phase 2 Interventional Results available

Uncomplicated Skin and Soft Tissue Infections Caused by Community-Associated Methicillin-Resistant Staphylococcus Aureus

NCT00730028
View directory record Official record
Conditions
Staphylococcal Infection
Interventions
Trimethoprim-sulfamethoxazole, Placebo, Clindamycin
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 85 Years
Enrollment
1,310 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
6
States / cities
San Francisco, California • Torrance, California • Atlanta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2016 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Phase 2 Interventional

SWOG-9320 Combination Chemotherapy, Radiation Therapy, and Antiviral Therapy in Treating Patients With AIDS-Related Lymphoma

NCT00002571
View directory record Official record
Conditions
Lymphoma
Interventions
bleomycin sulfate, filgrastim, cyclophosphamide, cytarabine, doxorubicin hydrochloride, etoposide, leucovorin calcium, methotrexate, prednisone, trimethoprim-sulfamethoxazole, vincristine sulfate, radiation therapy, Intrathecal cytarabine
Biological · Drug · Radiation
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1994 – 2011
U.S. locations
85
States / cities
Mobile, Alabama • Phoenix, Arizona • Tucson, Arizona + 53 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2013 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Phase 1 Interventional

Effect of Fluconazole, Clarithromycin, and Rifabutin on the Pharmacokinetics of Sulfamethoxazole-Trimethoprim and Dapsone and Their Hydroxylamine Metabolites

NCT00000826
View directory record Official record
Conditions
Bacterial Infections, Mycoses, HIV Infections
Interventions
Clarithromycin, Rifabutin, Sulfamethoxazole-Trimethoprim, Dapsone, Fluconazole
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1999
U.S. locations
2
States / cities
San Francisco, California • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Phase 2 Interventional Results available

A Novel Regimen to Prevent Malaria and STI in Pregnant Women With HIV

NCT03431168
View directory record Official record
Conditions
HIV, Pregnancy Malaria, Sexually Transmitted Infection
Interventions
Azithromycin/TMPS, Placebo/TMPS
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
16 Years to 55 Years · Female only
Enrollment
308 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Nov 26, 2023 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Not applicable Interventional

A Treatment IND for 566C80 Therapy of Pneumocystis Carinii Pneumonia

NCT00001991
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Atovaquone
Drug
Lead sponsor
Glaxo Wellcome
Industry
Eligibility
1 Day and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 17, 2026, 4:17 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Single Dose Aminoglycosides for Acute Uncomplicated Cystitis in the Emergency Department Setting

NCT05702762
View directory record Official record
Conditions
Urinary Tract Infections
Interventions
Gentamicin, Standard of Care
Drug
Lead sponsor
Mercy Health Ohio
Other
Eligibility
18 Years and older · Female only
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Youngstown, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 26, 2023 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Phase 1 Interventional

Randomized Phase I Study of Trimetrexate Glucuronate (TMTX) With Leucovorin (LCV) Protection Plus Dapsone Versus Trimethoprim / Sulfamethoxazole (TMP/SMX) for Treatment of Moderately Severe Episodes of Pneumocystis Carinii Pneumonia

NCT00002120
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Trimetrexate glucuronate, Trimethoprim, Sulfamethoxazole, Dapsone, Leucovorin calcium
Drug
Lead sponsor
U.S. Bioscience
Industry
Eligibility
13 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 17, 2026, 4:17 AM EDT
Terminated Phase 2 Interventional Results available

Rifabutin Based Therapy for the Eradication of Staphylococcus Aureus Colonization in HIV Infected Adults

NCT00869518
View directory record Official record
Conditions
Staphylococcus Aureus, HIV Infections
Interventions
rifabutin plus trimethoprim sulfamethoxazole, placebo plus trimethoprim-sulfamethoxazole
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 13, 2014 · Synced Sep 17, 2026, 4:17 AM EDT
Completed Not applicable Interventional Results available

Antibiotic Use Following Distal and Mid-shaft Hypospadias Repair

NCT02593903
View directory record Official record
Conditions
Hypospadias
Interventions
Septra
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
6 Months to 2 Years · Male only
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 4, 2018 · Synced Sep 17, 2026, 4:17 AM EDT