Clinical trials
Phase 3 trials in the United Kingdom
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
5,526 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 38 |
| 2001 | 74 |
| 2002 | 69 |
| 2003 | 105 |
| 2004 | 128 |
| 2005 | 155 |
| 2006 | 195 |
| 2007 | 179 |
| 2008 | 207 |
| 2009 | 188 |
| 2010 | 202 |
| 2011 | 210 |
| 2012 | 222 |
| 2013 | 243 |
| 2014 | 223 |
| 2015 | 259 |
| 2016 | 210 |
| 2017 | 261 |
| 2018 | 275 |
| 2019 | 253 |
| 2020 | 226 |
| 2021 | 282 |
| 2022 | 236 |
| 2023 | 249 |
| 2024 | 252 |
| 2025 | 254 |
| 2026 | 162 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 3,380 |
| Active, not recruiting | 668 |
| Terminated | 639 |
| Recruiting | 567 |
| Unknown status | 198 |
| Enrolling by invitation | 29 |
| Withdrawn | 22 |
| Not yet recruiting | 21 |
| Suspended | 2 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Novartis Pharmaceuticals | 260 |
| AstraZeneca | 256 |
| Hoffmann-La Roche | 256 |
| Pfizer | 171 |
| GlaxoSmithKline | 164 |
| Eli Lilly and Company | 161 |
| Sanofi | 139 |
| Novo Nordisk A/S | 124 |
| Merck Sharp & Dohme LLC | 123 |
| Bristol-Myers Squibb | 119 |
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 | 209 |
| Diabetes Mellitus, Type 2 | 182 |
| Carcinoma, Non-Small-Cell Lung | 179 |
| Neoplasms | 124 |
| Prostatic Neoplasms | 111 |
| Neoplasm Metastasis | 109 |
| Diabetes Mellitus | 96 |
| Multiple Myeloma | 94 |
| Pulmonary Disease, Chronic Obstructive | 93 |
| Arthritis, Rheumatoid | 77 |
Trials
Showing 76 to 100 of 5,526. Each trial links to its page on Pharma Observatory.
5,426 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.