Clinical trials
Phase 4 Cognitive Dysfunction trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
57 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2000 | 2 |
| 2002 | 1 |
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 4 |
| 2006 | 1 |
| 2007 | 2 |
| 2008 | 1 |
| 2009 | 3 |
| 2010 | 4 |
| 2011 | 7 |
| 2012 | 1 |
| 2013 | 4 |
| 2014 | 1 |
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 37 |
| Terminated | 7 |
| Recruiting | 4 |
| Unknown status | 3 |
| Enrolling by invitation | 3 |
| Withdrawn | 1 |
| Not yet recruiting | 1 |
| Active, not recruiting | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| New York State Psychiatric Institute | 4 |
| Emory University | 3 |
| University of Maryland, Baltimore | 3 |
| University of Pennsylvania | 3 |
| Duke University | 2 |
| Eisai Inc. | 2 |
| Indiana University | 2 |
| James J. Peters Veterans Affairs Medical Center | 2 |
| Massachusetts General Hospital | 2 |
| Mayo Clinic | 2 |
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 | 57 |
| Dementia | 11 |
| Alzheimer Disease | 9 |
| Schizophrenia | 6 |
| Delirium | 4 |
| Parkinson Disease | 4 |
| Psychotic Disorders | 4 |
| Bipolar Disorder | 3 |
| Major Depressive Disorder | 3 |
| Anosmia | 2 |
Trials
Showing 1 to 25 of 57. 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.