Drug
Sulfamethoxazole clinical trials
Counted the way a researcher would: Sulfamethoxazole with its salts, dosage forms, brands and biosimilars. Looking for a trial to join? Including related medicines shows more you could take part in.
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Watch these studiesHow studies write it
Studies that test it under each name
Studies by the year they started
12 studies that test it; most in 2026 (2)
| Year | Studies |
|---|---|
| 1997 | 1 |
| 1998 | 1 |
| 1999 | 1 |
| 2001 | 1 |
| 2003 | 1 |
| 2006 | 1 |
| 2010 | 1 |
| 2013 | 1 |
| 2015 | 1 |
| 2018 | 1 |
| 2026 | 2 |
By phase
A phase 1/2 study counts in both.
What it is tested for
Each study’s main condition, where its own words name it.
Who runs them
Industry 3 · Other 23
National Institute of Allergy and Infectious Diseases (NIAID) (12) · Texas Tech University Health Sciences Center (1) · Gary Morrow (1) · IRCCS Burlo Garofolo (1) · UMC Utrecht (1) · Bandim Health Project (1) · U.S. Bioscience (1) · Lederle Laboratories (1)
Often tested with
Tested in the same studies.
Trimethoprim (24) · Dapsone (4) · Leucovorin (2) · Clindamycin (2) · Zidovudine (2) · Ciprofloxacin (2) · Clarithromycin (2) · Primaquine (1)
Studies
Open first, then newest update. How each study uses Sulfamethoxazole is read from its arms, and is right about nine times in ten.
Testing it · 26
- Prophylactic Antibiotics for Outpatient Urethral BulkingRecruitingPhase 4University of MiamiNCT07501065Written as Bactrim (800/160 mg), Keflex (500 mg), Cipro (250 mg), or Macrobid (100mg)
- Bacteriophage Therapy for Mycobacterium Abscessus Pulmonary InfectionEnrolling by invitationPhase 1Vancouver Coastal HealthNCT07228702Written as Sulfamethoxazole/Trimethoprim
- S. Aureus Decolonization in HPN Patients.TerminatedNot applicableRadboud University Medical CenterNCT03173053Written as Sulfamethoxazole/trimethoprim
- A Randomized, Comparative, Prospective Study of Daily Trimethoprim / Sulfamethoxazole (TMS) and Thrice-Weekly TMS for Prophylaxis Against PCP in HIV-Infected PatientsCompletedPhase 3National Institute of Allergy and Infectious Diseases (NIAID)NCT00000748Written as Sulfamethoxazole-Trimethoprim
- Gradual Initiation of Sulfamethoxazole/Trimethoprim as Primary Pneumocystis Carinii Pneumonia ProphylaxisCompletedPhase 4National Institute of Allergy and Infectious Diseases (NIAID)NCT00000816Written as Sulfamethoxazole-Trimethoprim
- Comparison of Trimetrexate Plus Leucovorin Calcium Rescue Versus Sulfamethoxazole-Trimethoprim in the Treatment of Pneumocystis Carinii Pneumonia (PCP) in Patients With AIDSCompletedPhase 3National Institute of Allergy and Infectious Diseases (NIAID)NCT00001013Written as Sulfamethoxazole-Trimethoprim
- Trimetrexate Plus Leucovorin Calcium Rescue Versus Sulfamethoxazole-Trimethoprim in the Treatment of Pneumocystis Carinii Pneumonia (PCP) in Patients With AIDSCompletedPhase 3National Institute of Allergy and Infectious Diseases (NIAID)NCT00001014Written as Sulfamethoxazole-Trimethoprim
- A Controlled Comparative Trial of Sulfamethoxazole-Trimethoprim Versus Aerosolized Pentamidine for Secondary Prophylaxis of Pneumocystis Carinii Pneumonia in AIDS Patients Receiving Azidothymidine (AZT)CompletedPhase 3National Institute of Allergy and Infectious Diseases (NIAID)NCT00000727Written as Sulfamethoxazole/Trimethoprim
- A Phase III Comparative Study of Dapsone / Trimethoprim and Clindamycin / Primaquine Versus Sulfamethoxazole / Trimethoprim in the Treatment of Mild-to-Moderate PCP in Patients With AIDSCompletedPhase 3National Institute of Allergy and Infectious Diseases (NIAID)NCT00000640Written as Sulfamethoxazole-Trimethoprim
- Evaluation of the Interaction Between Low Dose Sulfamethoxazole-Trimethoprim and ZidovudineCompletedNot applicableNational Institute of Allergy and Infectious Diseases (NIAID)NCT00000732Written as Sulfamethoxazole-Trimethoprim
- A Controlled Trial Comparing the Efficacy of Aerosolized Pentamidine and Parenteral/Oral Sulfamethoxazole-Trimethoprim in the Treatment of Pneumocystis Carinii Pneumonia in AIDSCompletedPhase 3National Institute of Allergy and Infectious Diseases (NIAID)NCT00000715Written as Sulfamethoxazole-Trimethoprim
- Effect of Fluconazole, Clarithromycin, and Rifabutin on the Pharmacokinetics of Sulfamethoxazole-Trimethoprim and Dapsone and Their Hydroxylamine MetabolitesCompletedPhase 1National Institute of Allergy and Infectious Diseases (NIAID)NCT00000826Written as Sulfamethoxazole-Trimethoprim
- Evaluation of the Interaction Between High Dose Sulfamethoxazole/Trimethoprim and ZidovudineCompletedNot applicableNational Institute of Allergy and Infectious Diseases (NIAID)NCT00000734Written as Sulfamethoxazole-Trimethoprim
- Effect of Weight and/or Obesity on Sulfamethoxazole and Trimethoprim ConcentrationsCompletedPhase 4Texas Tech University Health Sciences CenterNCT01167452Written as Sulfamethoxazole/trimethoprim
- Islet Transplantation for Type 1 DiabetesCompletedPhase 2National Institute of Allergy and Infectious Diseases (NIAID)NCT00014911Written as Sulfamethoxazole
- Sulfamethoxazole for the Treatment of Primary PREPL DeficiencyStatus unknownPhase 2Universitair Ziekenhuis BrusselNCT02640443Written as Sulfamethoxazole
- Computer Stop Order Alert to Prevent Concurrent Prescribing of Trimethoprim/Sulfamethoxazole and WarfarinTerminatedNot applicableUniversity of PennsylvaniaNCT00870298Written as Trimethoprim/Sulfamethoxazole and Warfarin
- Clarithromycin, Sulfamethoxazole/Trimethoprim or Observation in Newly Diagnosed Multiple MyelomaStatus unknownPhase 2Henrik GregersenNCT02624440Written as Sulfamethoxazole/trimethoprim
- Antibiotic Therapy in Preventing Early Infection in Patients With Multiple Myeloma Who Are Receiving ChemotherapyCompletedPhase 3Gary MorrowNCT00002850Written as 160 mg trimethoprim and 800 mg sulfamethoxazole
- A Randomized Controlled Trial on Antibiotic Prophylaxis in Children With Vesico-Ureteral RefluxCompletedPhase 4IRCCS Burlo GarofoloNCT00382343Written as Sulfamethoxazole/trimethoprim
See all 26 studies that test Sulfamethoxazole →
Given in every arm · 2 — Sulfamethoxazole is usual care beside what is tested
- A Study of LBP-EC01 in the Treatment of Acute Uncomplicated UTI Caused by Drug Resistant E. Coli (ELIMINATE Trial)RecruitingPhase 2Locus BiosciencesNCT05488340Written as TMP/SMX
- Steroid-Free Versus Steroid-Based Immunosuppression in Pediatric Renal (Kidney) TransplantationCompletedPhase 1/2National Institute of Allergy and Infectious Diseases (NIAID)NCT00141037Written as Trimethoprim and sulfamethoxazole
As the comparator · 2 — what is tested is compared with Sulfamethoxazole
- Oral Antimicrobial Treatment vs. Outpatient Parenteral for Infective EndocarditisRecruitingPhase 4Fundacion Clinic per a la Recerca BiomédicaNCT05398679Written as Sulfamethoxazole / Trimethoprim Injectable Product
- Single Dose Monurol for Treatment of Acute CystitisCompletedNot applicableUniversity of WashingtonNCT00976963Written as TMP/SMX
Codes
What other systems call Sulfamethoxazole · ClinicalTrials.gg INT008254
- MeSH (NLM) D013420SulfamethoxazoleConfirmed ClinicalTrials.gov, NLM, Wikidata
- UNII (FDA) JE42381TNVSULFAMETHOXAZOLEConfirmed FDA, NLM, Wikidata
- RxNorm 10180Confirmed FDA, Wikidata
- Wikidata Q415843sulfamethoxazoleConfirmed FDA, NLM, Wikidata
- NCI Thesaurus C47737SulfamethoxazoleOne source FDA
- DrugBank DB01015One source Wikidata
| System | Code | Name there | Checked by |
|---|---|---|---|
| MeSH (NLM) | D013420 | Sulfamethoxazole | Confirmed ClinicalTrials.gov, NLM, Wikidata |
| UNII (FDA) | JE42381TNV | SULFAMETHOXAZOLE | Confirmed FDA, NLM, Wikidata |
| RxNorm | 10180 | — | Confirmed FDA, Wikidata |
| Wikidata | Q415843 | sulfamethoxazole | Confirmed FDA, NLM, Wikidata |
| NCI Thesaurus | C47737 | Sulfamethoxazole | One source FDA |
| DrugBank | DB01015 | — | One source Wikidata |
“Confirmed” means two independent publishers link the code to this drug; “one source”, one does and its name agrees.