Clinical trials
Phase 1/2 trials in the United Kingdom
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,036 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 2 |
| 2001 | 6 |
| 2002 | 9 |
| 2003 | 7 |
| 2004 | 7 |
| 2005 | 15 |
| 2006 | 14 |
| 2007 | 20 |
| 2008 | 24 |
| 2009 | 27 |
| 2010 | 32 |
| 2011 | 35 |
| 2012 | 47 |
| 2013 | 42 |
| 2014 | 50 |
| 2015 | 47 |
| 2016 | 49 |
| 2017 | 70 |
| 2018 | 71 |
| 2019 | 64 |
| 2020 | 65 |
| 2021 | 63 |
| 2022 | 60 |
| 2023 | 58 |
| 2024 | 53 |
| 2025 | 64 |
| 2026 | 32 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 473 |
| Recruiting | 190 |
| Terminated | 176 |
| Active, not recruiting | 115 |
| Unknown status | 48 |
| Withdrawn | 23 |
| Enrolling by invitation | 4 |
| Not yet recruiting | 4 |
| Suspended | 3 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| AstraZeneca | 33 |
| University of Oxford | 30 |
| Novartis Pharmaceuticals | 26 |
| Hoffmann-La Roche | 25 |
| Bristol-Myers Squibb | 23 |
| Imperial College London | 21 |
| University College, London | 21 |
| Merck Sharp & Dohme LLC | 20 |
| GlaxoSmithKline | 14 |
| BioMarin Pharmaceutical | 12 |
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 |
|---|---|
| Neoplasms | 75 |
| Carcinoma, Non-Small-Cell Lung | 65 |
| Breast Neoplasms | 55 |
| Prostatic Neoplasms | 39 |
| Colorectal Neoplasms | 38 |
| Ovarian Neoplasms | 38 |
| Melanoma | 35 |
| Recurrence | 33 |
| Leukemia, Myeloid, Acute | 30 |
| Lymphoma, Non-Hodgkin | 29 |
Trials
Showing 26 to 50 of 1,036. Each trial links to its page on Pharma Observatory.
936 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.