Clinical trials
Observational trials in Portugal
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
726 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 2 |
| 2002 | 3 |
| 2003 | 3 |
| 2004 | 4 |
| 2005 | 6 |
| 2006 | 3 |
| 2007 | 9 |
| 2008 | 17 |
| 2009 | 17 |
| 2010 | 19 |
| 2011 | 23 |
| 2012 | 34 |
| 2013 | 25 |
| 2014 | 34 |
| 2015 | 37 |
| 2016 | 23 |
| 2017 | 32 |
| 2018 | 36 |
| 2019 | 48 |
| 2020 | 59 |
| 2021 | 66 |
| 2022 | 53 |
| 2023 | 51 |
| 2024 | 40 |
| 2025 | 45 |
| 2026 | 30 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 379 |
| Recruiting | 136 |
| Unknown status | 99 |
| Active, not recruiting | 58 |
| Terminated | 26 |
| Not yet recruiting | 13 |
| Enrolling by invitation | 11 |
| Suspended | 2 |
| Withdrawn | 2 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Universidade do Porto | 39 |
| Association for Innovation and Biomedical Research on Light and Image | 27 |
| AstraZeneca | 26 |
| Bayer | 20 |
| Universidade Nova de Lisboa | 16 |
| Hoffmann-La Roche | 15 |
| AbbVie | 9 |
| Abbott Medical Devices | 9 |
| Bioceramed | 9 |
| Ipsen | 9 |
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 | 20 |
| Atrial Fibrillation | 19 |
| Heart Failure | 19 |
| Coronary Artery Disease | 17 |
| Diabetic Retinopathy | 16 |
| Diabetes Mellitus, Type 2 | 14 |
| Neoplasms | 14 |
| Arrhythmias, Cardiac | 13 |
| Macular Degeneration | 13 |
| Multiple Sclerosis | 13 |
Trials
Showing 1 to 25 of 726. Each trial links to its page on Pharma Observatory.
626 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
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