Clinical trials
Active, not recruiting trials in Bulgaria
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
307 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 | 21 |
| 2020 | 23 |
| 2021 | 42 |
| 2022 | 33 |
| 2023 | 51 |
| 2024 | 51 |
| 2025 | 51 |
| 2026 | 8 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Active, not recruiting | 307 |
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 | 8 |
| 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 | 19 |
| Neoplasms | 17 |
| Colitis, Ulcerative | 15 |
| Carcinoma, Non-Small-Cell Lung | 13 |
| Lupus Erythematosus, Systemic | 13 |
| Crohn Disease | 10 |
| Arthritis, Psoriatic | 8 |
| Multiple Sclerosis | 8 |
| Obesity | 8 |
| Primary Myelofibrosis | 8 |
Trials
Showing 1 to 25 of 307. Each trial links to its page on Pharma Observatory.
207 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.