Clinical trials
Asthma trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
1,586 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 10 |
| 2001 | 13 |
| 2002 | 25 |
| 2003 | 41 |
| 2004 | 45 |
| 2005 | 53 |
| 2006 | 82 |
| 2007 | 85 |
| 2008 | 90 |
| 2009 | 71 |
| 2010 | 90 |
| 2011 | 72 |
| 2012 | 87 |
| 2013 | 76 |
| 2014 | 64 |
| 2015 | 78 |
| 2016 | 64 |
| 2017 | 78 |
| 2018 | 59 |
| 2019 | 60 |
| 2020 | 44 |
| 2021 | 57 |
| 2022 | 40 |
| 2023 | 47 |
| 2024 | 43 |
| 2025 | 31 |
| 2026 | 46 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 1,181 |
| Terminated | 140 |
| Recruiting | 99 |
| Withdrawn | 54 |
| Unknown status | 47 |
| Active, not recruiting | 46 |
| Not yet recruiting | 9 |
| Enrolling by invitation | 8 |
| Suspended | 2 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| GlaxoSmithKline | 108 |
| AstraZeneca | 84 |
| Teva Branded Pharmaceutical Products R&D, Inc. | 41 |
| Novartis Pharmaceuticals | 36 |
| Brigham and Women's Hospital | 35 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 34 |
| University of California, San Francisco | 33 |
| Johns Hopkins University | 28 |
| Sanofi | 27 |
| National Institute of Environmental Health Sciences (NIEHS) | 25 |
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 | 1,586 |
| Pulmonary Disease, Chronic Obstructive | 104 |
| Hypersensitivity | 72 |
| Lung Diseases | 61 |
| Obesity | 51 |
| Respiratory Sounds | 37 |
| Respiratory Tract Diseases | 31 |
| Diabetes Mellitus | 30 |
| Heart Failure | 30 |
| Rhinitis, Allergic | 28 |
Trials
Showing 1 to 25 of 1,586. Each trial links to its page on Pharma Observatory.
1,486 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.