Clinical trials
Phase 1 trials in the United Kingdom
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
2,991 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 6 |
| 2001 | 9 |
| 2002 | 12 |
| 2003 | 13 |
| 2004 | 22 |
| 2005 | 40 |
| 2006 | 55 |
| 2007 | 88 |
| 2008 | 96 |
| 2009 | 143 |
| 2010 | 152 |
| 2011 | 142 |
| 2012 | 130 |
| 2013 | 159 |
| 2014 | 208 |
| 2015 | 196 |
| 2016 | 176 |
| 2017 | 190 |
| 2018 | 168 |
| 2019 | 157 |
| 2020 | 131 |
| 2021 | 173 |
| 2022 | 140 |
| 2023 | 102 |
| 2024 | 105 |
| 2025 | 88 |
| 2026 | 57 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 2,274 |
| Terminated | 284 |
| Recruiting | 156 |
| Active, not recruiting | 129 |
| Unknown status | 98 |
| Withdrawn | 31 |
| Not yet recruiting | 8 |
| Suspended | 7 |
| Enrolling by invitation | 4 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| AstraZeneca | 269 |
| GlaxoSmithKline | 254 |
| University of Oxford | 92 |
| Hoffmann-La Roche | 79 |
| Novartis Pharmaceuticals | 67 |
| Eli Lilly and Company | 59 |
| Pfizer | 51 |
| Novo Nordisk A/S | 47 |
| Imperial College London | 46 |
| Janssen Research & Development, LLC | 40 |
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 | 179 |
| Carcinoma, Non-Small-Cell Lung | 99 |
| Pulmonary Disease, Chronic Obstructive | 91 |
| Asthma | 79 |
| Breast Neoplasms | 60 |
| Neoplasm Metastasis | 58 |
| Colorectal Neoplasms | 55 |
| Ovarian Neoplasms | 48 |
| Prostatic Neoplasms | 44 |
| Lymphoma, Non-Hodgkin | 40 |
Trials
Showing 26 to 50 of 2,991. Each trial links to its page on Pharma Observatory.
2,891 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.