Clinical trials
Observational trials in Belgium
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
2,752 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 8 |
| 2001 | 4 |
| 2002 | 11 |
| 2003 | 12 |
| 2004 | 28 |
| 2005 | 21 |
| 2006 | 34 |
| 2007 | 45 |
| 2008 | 54 |
| 2009 | 61 |
| 2010 | 89 |
| 2011 | 99 |
| 2012 | 123 |
| 2013 | 114 |
| 2014 | 162 |
| 2015 | 122 |
| 2016 | 130 |
| 2017 | 147 |
| 2018 | 148 |
| 2019 | 191 |
| 2020 | 219 |
| 2021 | 216 |
| 2022 | 170 |
| 2023 | 184 |
| 2024 | 129 |
| 2025 | 148 |
| 2026 | 69 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 1,519 |
| Unknown status | 459 |
| Recruiting | 442 |
| Active, not recruiting | 129 |
| Terminated | 89 |
| Not yet recruiting | 42 |
| Withdrawn | 36 |
| Enrolling by invitation | 32 |
| Suspended | 4 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Universitaire Ziekenhuizen KU Leuven | 337 |
| University Hospital, Ghent | 163 |
| KU Leuven | 110 |
| Universitair Ziekenhuis Brussel | 85 |
| University Hospital, Antwerp | 76 |
| University of Liege | 67 |
| Cliniques universitaires Saint-Luc- Université Catholique de Louvain | 66 |
| University Ghent | 66 |
| Hasselt University | 53 |
| Erasme University Hospital | 52 |
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 |
|---|---|
| COVID-19 | 69 |
| Breast Neoplasms | 53 |
| Stroke | 53 |
| Neoplasms | 47 |
| Atrial Fibrillation | 42 |
| Coronary Artery Disease | 39 |
| Heart Failure | 39 |
| Colorectal Neoplasms | 37 |
| Sleep Apnea, Obstructive | 37 |
| Obesity | 35 |
Trials
Showing 26 to 50 of 2,752. Each trial links to its page on Pharma Observatory.
2,652 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.
No changes to these trials in the last 7 days.
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