Trimethoprim-sulfamethoxazole is named as a drug or biological intervention in 3 clinical trials in our China and USA trial registers, 2 of which are recruiting. Lead sponsors include Astellas Institute for Regenerative Medicine (1), Tongji Hospital (1) and Second Affiliated Hospital, Zhejiang University, School of Medicine (1). Registered phases: Phase 1, Phase 4 and Not applicable. Conditions studied include Age-Related Macular Degeneration; Pneumonia, Pneumocystis; Autoimmune Inflammatory Rheumatic Disease.
| NCT ID | Study | Phase | Status |
|---|---|---|---|
| NCT06499233 | Efficacy and Safety of Prophylactic Treatment for Pneumocystis Jirovecii Pneumonia in Patients With Autoimmune Inflammatory Rheumatic Disease (ClinicalTrials.gov ↗) Pneumonia, Pneumocystis, Autoimmune Inflammatory Rheumatic Disease, Autoimmune Diseases |
Phase 4 | Recruiting |
| NCT03178149 | A Study of the Safety and Tolerability of ASP7317 in Senior Adults Who Are Losing Their Clear, Sharp Central Vision Due to Geographic Atrophy Secondary to Dry Age-related Macular Degeneration (ClinicalTrials.gov ↗) Age-Related Macular Degeneration |
Phase 1 | Recruiting |
| NCT07665359 | Study on the Impact of Decolonization Treatment of Pneumocystis Jirovecii on the Frequency of Acute Exacerbation in COPD (ClinicalTrials.gov ↗) Chronic Obstructive Pulmonary Disease (COPD) |
Not applicable | Not yet open |
Registers list studies that are recruiting, about to open, active but closed to enrolment, or enrolling by invitation. The UK and USA registers cover industry-sponsored studies only. Trial titles and statuses are copied from the registry as published.
| Condition (as registered) | Trials |
|---|---|
| Age-Related Macular Degeneration | 1 |
| Pneumonia, Pneumocystis | 1 |
| Autoimmune Inflammatory Rheumatic Disease | 1 |
| Autoimmune Diseases | 1 |
| Connective Tissue Disease | 1 |
| Chronic Obstructive Pulmonary Disease (COPD) | 1 |
| Lead sponsor | Trials |
|---|---|
| Astellas Institute for Regenerative Medicine | 1 |
| Tongji Hospital | 1 |
| Second Affiliated Hospital, Zhejiang University, School of Medicine | 1 |
| Register | Trimethoprim-sulfamethoxazole trials |
|---|---|
| Clinical trials in China | 2 |
| Clinical trials in USA | 1 |
A trial with sites in more than one country appears in each of those registers.
Everything on this page is copied from public ClinicalTrials.gov registry records — it is not written from memory, and nothing here describes how Trimethoprim-sulfamethoxazole works or whether it is effective. Each trial links to its own record so you can check it yourself.
This page is built automatically: a daily sync job reads the registry records behind our country trial registers, collects every trial that lists Trimethoprim-sulfamethoxazole (or a registered synonym) as a drug or biological intervention, and tabulates the registry fields directly. Placebos and generic comparators are excluded. There is no AI drafting and no per-compound editorial pass, and the page has not been clinically reviewed. The “last verified” date above is the timestamp of that sync, not a review date. Our general editorial approach is described in our editorial standards and corrections policy. The ClinicalTrials.gov data on this page was last retrieved on 24 Sep 2026.