Clinical trials
Completed Syphilis trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
60 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 2 |
| 2004 | 1 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 1 |
| 2011 | 4 |
| 2012 | 3 |
| 2013 | 3 |
| 2014 | 3 |
| 2015 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 60 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Institute of Allergy and Infectious Diseases (NIAID) | 5 |
| Centers for Disease Control and Prevention | 3 |
| London School of Hygiene and Tropical Medicine | 3 |
| Population Council | 3 |
| British Columbia Centre for Disease Control | 2 |
| Columbia University | 2 |
| Jacobi Medical Center | 2 |
| University of California, Los Angeles | 2 |
| University of California, San Diego | 2 |
| University of North Carolina, Chapel Hill | 2 |
Top conditions
MeSH conditions the trials were registered with, not their broader categories. A condition with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Syphilis | 60 |
| HIV Infections | 19 |
| Sexually Transmitted Diseases | 19 |
| Gonorrhea | 15 |
| Chlamydia Infections | 14 |
| Acquired Immunodeficiency Syndrome | 6 |
| Hepatitis B | 4 |
| Hepatitis C | 4 |
| Trichomonas Infections | 4 |
| Trichomonas Vaginitis | 3 |
Trials
Showing 26 to 50 of 60. Each trial links to its page on Pharma Observatory.
Recently changed trials
Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.
No changes to these trials in the last 7 days.
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