Clinical trials
Completed Observational Major Depressive Disorder trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
223 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2001 | 4 |
| 2002 | 6 |
| 2003 | 5 |
| 2004 | 8 |
| 2005 | 7 |
| 2006 | 6 |
| 2007 | 7 |
| 2008 | 12 |
| 2009 | 11 |
| 2010 | 9 |
| 2011 | 13 |
| 2012 | 9 |
| 2013 | 10 |
| 2014 | 7 |
| 2015 | 11 |
| 2016 | 12 |
| 2017 | 11 |
| 2018 | 5 |
| 2019 | 9 |
| 2020 | 12 |
| 2021 | 9 |
| 2022 | 13 |
| 2023 | 10 |
| 2024 | 5 |
| 2025 | 1 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 223 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| National Institute of Mental Health (NIMH) | 28 |
| AstraZeneca | 11 |
| Mclean Hospital | 8 |
| Massachusetts General Hospital | 6 |
| Stanford University | 6 |
| Duke University | 4 |
| Janssen Research & Development, LLC | 4 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 4 |
| Pfizer | 4 |
| Charite University, Berlin, Germany | 3 |
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 |
|---|---|
| Major Depressive Disorder | 223 |
| Bipolar Disorder | 40 |
| Anxiety Disorders | 15 |
| Mood Disorders | 14 |
| Depressive Disorder | 12 |
| Schizophrenia | 10 |
| Psychotic Disorders | 8 |
| Stress Disorders, Post-Traumatic | 8 |
| Anhedonia | 6 |
| Depressive Disorder, Treatment-Resistant | 6 |
Trials
Showing 1 to 25 of 223. Each trial links to its page on Pharma Observatory.
123 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
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