Clinical trials
Phase 2/3 trials in Bulgaria
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
75 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 4 |
| 2007 | 5 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 5 |
| 2013 | 1 |
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 7 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 5 |
| 2026 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 43 |
| Terminated | 14 |
| Active, not recruiting | 8 |
| Recruiting | 8 |
| Enrolling by invitation | 1 |
| Unknown status | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Pfizer | 5 |
| CSL Behring | 4 |
| Boehringer Ingelheim | 3 |
| Janssen Research & Development, LLC | 3 |
| Artu Biologicals | 2 |
| AstraZeneca | 2 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 2 |
| Sanofi | 2 |
| Theravance Biopharma | 2 |
| argenx | 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 |
|---|---|
| Colitis, Ulcerative | 7 |
| COVID-19 | 6 |
| Hidradenitis Suppurativa | 3 |
| Inflammatory Bowel Diseases | 3 |
| Angioedemas, Hereditary | 2 |
| Anorexia | 2 |
| Cachexia | 2 |
| Carcinoma, Non-Small-Cell Lung | 2 |
| Carcinoma, Renal Cell | 2 |
| Hemophilia A | 2 |
Trials
Showing 1 to 25 of 75. 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.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.