Clinical trials
Active, not recruiting trials in Bulgaria
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
306 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2008 | 1 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 4 |
| 2016 | 1 |
| 2017 | 7 |
| 2018 | 10 |
| 2019 | 20 |
| 2020 | 22 |
| 2021 | 42 |
| 2022 | 33 |
| 2023 | 51 |
| 2024 | 50 |
| 2025 | 53 |
| 2026 | 8 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Active, not recruiting | 306 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| AstraZeneca | 30 |
| AbbVie | 22 |
| Novartis Pharmaceuticals | 21 |
| Hoffmann-La Roche | 17 |
| Janssen Research & Development, LLC | 14 |
| Novo Nordisk A/S | 12 |
| Pfizer | 12 |
| Sanofi | 10 |
| Amgen | 7 |
| GlaxoSmithKline | 6 |
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 |
|---|---|
| Breast Neoplasms | 18 |
| Neoplasms | 17 |
| Colitis, Ulcerative | 15 |
| Lupus Erythematosus, Systemic | 13 |
| Carcinoma, Non-Small-Cell Lung | 12 |
| Crohn Disease | 10 |
| Arthritis, Psoriatic | 8 |
| Multiple Sclerosis | 8 |
| Obesity | 8 |
| Primary Myelofibrosis | 8 |
Trials
Showing 26 to 50 of 306. Each trial links to its page on Pharma Observatory.
206 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.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.