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| Withdrawn | 23 |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 1 to 25 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.