Clinical trials
Completed Observational Cognitive Dysfunction trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
410 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2002 | 1 |
| 2003 | 4 |
| 2004 | 5 |
| 2005 | 4 |
| 2006 | 4 |
| 2007 | 5 |
| 2008 | 9 |
| 2009 | 14 |
| 2010 | 12 |
| 2011 | 15 |
| 2012 | 17 |
| 2013 | 18 |
| 2014 | 15 |
| 2015 | 22 |
| 2016 | 17 |
| 2017 | 31 |
| 2018 | 30 |
| 2019 | 32 |
| 2020 | 32 |
| 2021 | 35 |
| 2022 | 40 |
| 2023 | 20 |
| 2024 | 18 |
| 2025 | 6 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 410 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Ohio State University | 5 |
| University of Southern California | 5 |
| Assistance Publique - Hôpitaux de Paris | 4 |
| Brigham and Women's Hospital | 4 |
| Chang Gung Memorial Hospital | 4 |
| Emory University | 4 |
| Stanford University | 4 |
| University of Aarhus | 4 |
| Vanderbilt University Medical Center | 4 |
| Chinese University of Hong Kong | 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 |
|---|---|
| Cognitive Dysfunction | 410 |
| Alzheimer Disease | 103 |
| Dementia | 69 |
| Delirium | 23 |
| Fatigue | 15 |
| COVID-19 | 13 |
| Cognition Disorders | 13 |
| Stroke | 13 |
| Dementia, Vascular | 12 |
| Memory Disorders | 12 |
Trials
Showing 1 to 25 of 410. Each trial links to its page on Pharma Observatory.
310 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
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