Clinical trials
Trials in Portugal
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
4,023 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 14 |
| 2001 | 30 |
| 2002 | 38 |
| 2003 | 48 |
| 2004 | 64 |
| 2005 | 62 |
| 2006 | 94 |
| 2007 | 69 |
| 2008 | 107 |
| 2009 | 89 |
| 2010 | 95 |
| 2011 | 101 |
| 2012 | 133 |
| 2013 | 115 |
| 2014 | 142 |
| 2015 | 156 |
| 2016 | 133 |
| 2017 | 180 |
| 2018 | 209 |
| 2019 | 225 |
| 2020 | 230 |
| 2021 | 287 |
| 2022 | 284 |
| 2023 | 281 |
| 2024 | 287 |
| 2025 | 289 |
| 2026 | 188 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 2,181 |
| Recruiting | 550 |
| Active, not recruiting | 421 |
| Unknown status | 344 |
| Terminated | 340 |
| Not yet recruiting | 104 |
| Enrolling by invitation | 52 |
| Withdrawn | 19 |
| Approved for marketing | 5 |
| Suspended | 4 |
| No longer available | 3 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Hoffmann-La Roche | 166 |
| Universidade do Porto | 159 |
| Novartis Pharmaceuticals | 139 |
| Boehringer Ingelheim | 119 |
| Sanofi | 116 |
| AstraZeneca | 95 |
| Bayer | 94 |
| University of Coimbra | 75 |
| AbbVie | 73 |
| Pfizer | 72 |
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 | 156 |
| Neoplasms | 92 |
| Carcinoma, Non-Small-Cell Lung | 91 |
| Diabetes Mellitus, Type 2 | 82 |
| Heart Failure | 69 |
| Obesity | 67 |
| Arthritis, Rheumatoid | 59 |
| HIV Infections | 57 |
| Neoplasm Metastasis | 56 |
| Multiple Sclerosis | 54 |
Trials
Showing 1 to 25 of 4,023. Each trial links to its page on Pharma Observatory.
3,923 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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