Clinical trials
Completed Phase 4 Asthma trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
307 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 4 |
| 2001 | 3 |
| 2002 | 11 |
| 2003 | 19 |
| 2004 | 16 |
| 2005 | 23 |
| 2006 | 23 |
| 2007 | 30 |
| 2008 | 12 |
| 2009 | 17 |
| 2010 | 13 |
| 2011 | 18 |
| 2012 | 10 |
| 2013 | 13 |
| 2014 | 12 |
| 2015 | 7 |
| 2016 | 13 |
| 2017 | 8 |
| 2018 | 7 |
| 2019 | 7 |
| 2020 | 5 |
| 2021 | 11 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 7 |
| 2025 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 307 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| GlaxoSmithKline | 47 |
| AstraZeneca | 20 |
| Organon and Co | 17 |
| University of Saskatchewan | 11 |
| University of Dundee | 10 |
| Centre of Chinese Medicine, Georgia | 8 |
| Imperial College London | 6 |
| Novartis | 6 |
| Boehringer Ingelheim | 5 |
| Medical University of Lodz | 5 |
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 |
|---|---|
| Asthma | 307 |
| Pulmonary Disease, Chronic Obstructive | 18 |
| Rhinitis, Allergic | 13 |
| Respiratory Hypersensitivity | 8 |
| Emergencies | 7 |
| Pulmonary Eosinophilia | 7 |
| Respiratory Sounds | 5 |
| Lymphoma, Follicular | 4 |
| Asthma, Exercise-Induced | 3 |
| Pneumonia | 3 |
Trials
Showing 1 to 25 of 307. Each trial links to its page on Pharma Observatory.
207 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.
No changes to these trials in the last 7 days.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.