Clinical trials
Completed Phase 4 Cognitive Dysfunction trials
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
67 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 1 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 5 |
| 2006 | 3 |
| 2007 | 4 |
| 2009 | 1 |
| 2010 | 7 |
| 2011 | 7 |
| 2012 | 1 |
| 2013 | 6 |
| 2014 | 1 |
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 67 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Eisai Inc. | 3 |
| New York State Psychiatric Institute | 3 |
| University of Maryland, Baltimore | 3 |
| University of Pennsylvania | 3 |
| Emory University | 2 |
| James J. Peters Veterans Affairs Medical Center | 2 |
| VA Office of Research and Development | 2 |
| Aarhus University Hospital | 1 |
| Ariel Gildengers, MD | 1 |
| Beni-Suef University | 1 |
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 | 67 |
| Alzheimer Disease | 9 |
| Dementia | 9 |
| Delirium | 5 |
| Schizophrenia | 4 |
| Bipolar Disorder | 3 |
| Major Depressive Disorder | 3 |
| Parkinson Disease | 3 |
| Anosmia | 2 |
| Anxiety Disorders | 2 |
Trials
Showing 1 to 25 of 67. Each trial links to its page 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.