Clinical trials
Completed Opioid-Related Disorders trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
758 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 5 |
| 2001 | 7 |
| 2002 | 4 |
| 2003 | 8 |
| 2004 | 4 |
| 2005 | 25 |
| 2006 | 19 |
| 2007 | 17 |
| 2008 | 18 |
| 2009 | 10 |
| 2010 | 17 |
| 2011 | 14 |
| 2012 | 20 |
| 2013 | 20 |
| 2014 | 16 |
| 2015 | 28 |
| 2016 | 29 |
| 2017 | 35 |
| 2018 | 40 |
| 2019 | 63 |
| 2020 | 75 |
| 2021 | 66 |
| 2022 | 54 |
| 2023 | 32 |
| 2024 | 26 |
| 2025 | 15 |
| 2026 | 5 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 758 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Yale University | 64 |
| National Institute on Drug Abuse (NIDA) | 62 |
| Johns Hopkins University | 33 |
| New York State Psychiatric Institute | 31 |
| Indivior Inc. | 23 |
| University of California, Los Angeles | 19 |
| University of Chicago | 19 |
| NYU Langone Health | 15 |
| University of Pennsylvania | 15 |
| University of Vermont | 14 |
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 |
|---|---|
| Opioid-Related Disorders | 758 |
| Substance-Related Disorders | 133 |
| Chronic Pain | 47 |
| Heroin Dependence | 38 |
| Cocaine-Related Disorders | 32 |
| Pain | 23 |
| Drug Overdose | 19 |
| HIV Infections | 17 |
| Anxiety Disorders | 14 |
| Acquired Immunodeficiency Syndrome | 12 |
Trials
Showing 1 to 25 of 758. Each trial links to its page on Pharma Observatory.
658 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.