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ClinicalTrials.gov public records Last synced Oct 1, 2026, 1:41 AM EDT

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Showing 1–24 of 68 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: oral trimethoprim/sulfamethoxazole Clear all
Recruiting Early Phase 1 Interventional

Self-Start Triage Model for Post-Botox® Lower Urinary Tract Symptoms

NCT07648290
View directory record Official record
Conditions
Overactive Bladder
Interventions
Macrobid® Capsules 100 mg, Standard Medical Care (SMC)
Drug · Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Phase 3 Interventional

Trimetrexate Plus Leucovorin Calcium Rescue Versus Sulfamethoxazole-Trimethoprim in the Treatment of Pneumocystis Carinii Pneumonia (PCP) in Patients With AIDS

NCT00001014
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Trimetrexate glucuronate, Sulfamethoxazole-Trimethoprim, Leucovorin calcium
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1991
U.S. locations
6
States / cities
San Francisco, California • Chicago, Illinois • New Orleans, Louisiana + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Oct 1, 2026, 1:41 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 2, 2026 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Phase 2 Interventional Results available

STaph Aureus Resistance-Treat Early and Repeat (STAR-TER)

NCT03489629
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Trimethoprim Sulfamethoxazole (TMP/SMX), Minocycline, Mupirocin, Chlorhexidine Gluconate, Environmental Decontamination
Drug · Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
2 Years to 45 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
9
States / cities
Denver, Colorado • Indianapolis, Indiana • Ann Arbor, Michigan + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Oct 1, 2026, 1:41 AM EDT
Not yet recruiting Phase 3 Interventional

Precision Management of Urinary Tract Symptoms in Older Women

NCT07686055
View directory record Official record
Conditions
Urinary Tract Infection (Diagnosis)
Interventions
Antibiotics
Drug
Lead sponsor
Megan Bradley
Other
Eligibility
65 Years and older · Female only
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Phase 2 Interventional Results available

Persistent Methicillin Resistant Staphylococcus Aureus Eradication Protocol (PMEP)

NCT01594827
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Inhaled Vancomycin, Placebo (Sterile Water), Rifampin, Trimethoprim/Sulfamethoxazole (TMP/SMX), Doxycycline, Mupirocin Intranasal Creme, 4% chlorhexidine gluconate liquid skin cleanser
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
12 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
2
States / cities
Baltimore, Maryland • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 26, 2019 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Not applicable Interventional

Antibiotic Prophylaxis With Routine Ureteral Stent Removal

NCT02944825
View directory record Official record
Conditions
Urolithiasis, UTI
Interventions
Ciprofloxacin, trimethoprim/sulfamethoxazole, No Intervention
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
Not listed
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 4, 2025 · Synced Oct 1, 2026, 1:41 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 25, 2016 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Strategies Using Off-Patent Antibiotics for Methicillin Resistant S. Aureus "STOP MRSA"

NCT00729937
View directory record Official record
Conditions
Staphylococcal Infection
Interventions
Cephalexin, Clindamycin, Placebo, Trimethoprim-sulfamethoxazole
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
2,265 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
5
States / cities
Phoenix, Arizona • Sylmar, California • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2015 · Synced Oct 1, 2026, 1:41 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 17, 2018 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Phase 2 Interventional Results available

Islet Transplantation for Type 1 Diabetes

NCT00014911
View directory record Official record
Conditions
Diabetes Mellitus, Insulin-Dependent
Interventions
Islet Transplantation, Sirolimus, Tacrolimus, Daclizumab, Sulfamethoxazole, Ganciclovir, Trimethoprim, Pentamidine
Procedure · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2010
U.S. locations
5
States / cities
Miami, Florida • Boston, Massachusetts • Minneapolis, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Antibiotic Prophylaxis for Transrectal Prostate Biopsy

NCT01659866
View directory record Official record
Conditions
Infection
Interventions
Ciprofloxacin, trimethoprim-sulfamethoxazole, cefuroxime, ceftriaxone, gentamicin, amikacin, aztreonam, imipenem
Drug
Lead sponsor
Northwestern University
Other
Eligibility
30 Years to 90 Years · Male only
Enrollment
563 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 25, 2019 · Synced Oct 1, 2026, 1:41 AM EDT
Withdrawn Phase 2 Interventional

Probiotics for Girls With Recurring Urinary Tract Infections

NCT00789464
View directory record Official record
Conditions
Recurrent Urinary Tract Infection
Interventions
Lactobacillus reuteri DSM 17938, trimethoprim/sulfamethoxazole
Dietary Supplement · Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
3 Months to 17 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 18, 2020 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Phase 1 Interventional

A Study of Pentamidine in the Prevention of Pneumocystis Carinii Pneumonia (PCP) in HIV-Infected Children Who Cannot Take Trimethoprim-Sulfamethoxazole

NCT00001027
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Pentamidine isethionate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Month to 6 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1996
U.S. locations
11
States / cities
Los Angeles, California • Oakland, California • Washington D.C., District of Columbia + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Not applicable Interventional

Endourology Disease Group Excellence (EDGE) Consortium: Antibiotics (Abx) for Percutaneous Nephrolithotomy (PCNL) Part 2

NCT02829060
View directory record Official record
Conditions
Nephrolithiasis, Urinary Tract Infection (UTI), Sepsis
Interventions
Nitrofurantoin 100 MG, 7d, Gentamicin, 5mg/kg, Ampicillin 2g, Nitrofurantoin 100 mg, 48 hrs, Gentamicin, 80 mg, 7d, Gentamicin, 80 mg, 48hr
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
Not listed
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 6, 2025 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Phase 3 Interventional

A Controlled Trial Comparing the Efficacy of Aerosolized Pentamidine and Parenteral/Oral Sulfamethoxazole-Trimethoprim in the Treatment of Pneumocystis Carinii Pneumonia in AIDS

NCT00000715
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Pentamidine isethionate, Sulfamethoxazole-Trimethoprim
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1991
U.S. locations
9
States / cities
New Orleans, Louisiana • Boston, Massachusetts • New York, New York + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Oct 1, 2026, 1:41 AM EDT
Completed No phase listed Observational

Fluoroquinolone Associated Disability

NCT03535558
View directory record Official record
Conditions
Bronchitis, Sinusitis, Urinary Tract Infections
Interventions
Fluoroquinolone (FQ), Azithromycin (AZ), Sulfamethoxazole/Trimethoprim (ST) Fixed Dose Combination
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
239,306 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Titusville, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 29, 2019 · Synced Oct 1, 2026, 1:41 AM EDT
Not listed Phase 4 Interventional

Struvite Stones Antibiotic Study

NCT02375295
View directory record Official record
Conditions
Kidney Stones
Interventions
ciprofloxacin, cotrimoxazole-trimethoprim, macrodantin
Drug
Lead sponsor
University of British Columbia
Other
Eligibility
19 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2023
U.S. locations
11
States / cities
Scottsdale, Arizona • San Diego, California • Baltimore, Maryland + 8 more
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Oct 1, 2026, 1:41 AM EDT
Recruiting Phase 4 Interventional

Extended Oral Antibiotic Prophylaxis in Diabetic Fracture Patients

NCT07561541
View directory record Official record
Conditions
Fracture Lower Leg, Diabetes, Fracture Fixation, Internal
Interventions
Cefadroxil 500 mg Capsules, Clindamycin, Bactrim DS
Drug
Lead sponsor
Texas Tech University Health Sciences Center, El Paso
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
Los Angeles, California • El Paso, Texas
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Oct 1, 2026, 1:41 AM EDT
Withdrawn Not applicable Interventional

Antibiotic Therapy After Incision and Drainage for Abscess

NCT00900510
View directory record Official record
Conditions
Abscess
Interventions
Incision and drainage, Trimethoprim/Sulfamethoxazole (Bactrim), Placebo
Procedure · Drug
Lead sponsor
Wake Forest University
Other
Eligibility
6 Months to 18 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 6, 2017 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Phase 3 Interventional

Study of Rezafungin Compared to Standard Antimicrobial Regimen for Prevention of Invasive Fungal Diseases in Adults Undergoing Allogeneic Blood and Marrow Transplantation

NCT04368559
View directory record Official record
Conditions
Candidemia, Mycoses, Fungal Infection, Fungemia, Invasive Candidiasis, Pneumocystis, Mold Infection, Invasive Fungal Disease, Prophylaxis of Invasive Fungal Infections, Aspergillus
Interventions
Rezafungin for Injection, Posaconazole, Fluconazole, Trimethoprim-sulfamethoxazole (TMP/SMX), Intravenous Placebo, Oral Placebo
Drug
Lead sponsor
Mundipharma Research Limited
Industry
Eligibility
18 Years and older
Enrollment
602 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
18
States / cities
Birmingham, Alabama • Los Angeles, California • Stanford, California + 13 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 1, 2026, 1:41 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 19, 2026 · Synced Oct 1, 2026, 1:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Single Dose Monurol for Treatment of Acute Cystitis

NCT00976963
View directory record Official record
Conditions
Urinary Tract Infection
Interventions
TMP/SMX, Fosfomycin
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 5, 2023 · Synced Oct 1, 2026, 1:41 AM EDT
Active, not recruiting Not applicable Interventional

Prophylactic Antibiotics or Placebo After Hypospadias Repair

NCT02096159
View directory record Official record
Conditions
Hypospadias
Interventions
trimethoprim-sulfamethoxazole, placebo
Drug · Other
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
Up to 5 Years · Male only
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 14, 2024 · Synced Oct 1, 2026, 1:41 AM EDT