Clinical trials
Phase 1 trials in Bulgaria
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
143 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2006 | 3 |
| 2007 | 3 |
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 2 |
| 2011 | 5 |
| 2012 | 4 |
| 2013 | 5 |
| 2014 | 8 |
| 2015 | 13 |
| 2016 | 9 |
| 2017 | 6 |
| 2018 | 11 |
| 2019 | 8 |
| 2020 | 8 |
| 2021 | 7 |
| 2022 | 12 |
| 2023 | 7 |
| 2024 | 13 |
| 2025 | 13 |
| 2026 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 103 |
| Terminated | 13 |
| Recruiting | 13 |
| Active, not recruiting | 9 |
| Withdrawn | 2 |
| Unknown status | 1 |
| Not yet recruiting | 1 |
| Enrolling by invitation | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Novartis Pharmaceuticals | 10 |
| AstraZeneca | 9 |
| Bayer | 7 |
| Chiesi Farmaceutici S.p.A. | 5 |
| Eli Lilly and Company | 4 |
| Norgine | 4 |
| Pfizer | 4 |
| Sanofi | 4 |
| Hoffmann-La Roche | 3 |
| Lakefront Biotherapeutics NV | 3 |
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 |
|---|---|
| Hemophilia A | 13 |
| Renal Insufficiency | 10 |
| Lupus Erythematosus, Systemic | 9 |
| Arthritis, Rheumatoid | 8 |
| Autoimmune Diseases | 4 |
| Heart Failure | 4 |
| Hepatitis B, Chronic | 4 |
| Neoplasms | 4 |
| Pulmonary Disease, Chronic Obstructive | 4 |
| Renal Insufficiency, Chronic | 4 |
Trials
Showing 51 to 75 of 143. Each trial links to its page on Pharma Observatory.
43 more trials match. See them on Pharma Observatory
Recently changed trials
Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.
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