NCT04916210Recruiting
Determinants of Incident Stroke Cognitive Outcomes and Vascular Effects on RecoverY
Source: ClinicalTrials.gov · Last updated 14 Sept 2026
Brief summary (registry, in English)
The overall goal of the DISCOVERY study is to better understand what factors contribute to changes in cognitive (i.e., thinking and memory) abilities in patients who experienced a stroke. The purpose of the study is to help doctors identify patients at risk for dementia (decline in memory, thinking and other mental abilities that significantly affects daily functioning) after their stroke so that future treatments may be developed to improve outcomes in stroke patients. For this study, a "stroke" is defined as either (1) an acute ischemic stroke (AIS, or blood clot in the brain), (2) an intracerebral hemorrhage (ICH, or bleeding in the brain), (3) or an aneurysmal subarachnoid hemorrhage (aSAH, or bleeding around the brain caused by an abnormal bulge in a blood vessel that bursts). The investigators hypothesize that: 1. The size, type and location of the stroke play an important role in recovery of thinking and memory abilities after stroke, and pre-existing indicators of brain health further determine the extent of this recovery. 2. Specific stroke events occurring in individuals with underlying genetic or biological risk factors can cause further declines in brain heath, leading to changes in thinking and memory abilities after stroke. 3. Studying thinking and memory alongside brain imaging and blood samples in patients who have had a stroke allows for earlier identification of declining brain health and development of individualized treatment plans to improve patient outcomes in the future.
- Status (registry)
- Recruiting
- Study type
- Observational
- Enrollment
- 8000 (estimated)
- First submitted
- 13 May 2021
- Start date
- 5 Mar 2021
- Primary completion date
- 31 Aug 2027
- Lead sponsor
- Massachusetts General Hospital
- Diseases
- Stroke
- NCT number
- NCT04916210
What you commit to
- Study type: Observational
- Planned participants: 8000
- From 5 Mar 2021 to the primary completion date, 31 Aug 2027
- 31 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Documented history of pre-stroke dementia or fails dementia pre-screen
- Contraindication to MRI: presence of electrically, magnetically, or mechanically activated implants (such as cardiac pacemakers, cochlear implants, implanted pumps); or metallic clips in the brain
- Additional exclusion criteria for Tier 3 participants:
- Known to have one of the following genetic conditions which can increase the risk of developing cancer: Cowden disease, Lynch syndrome, hypogammaglobulinemia, Wiskott-Aldrich syndrome, Down's syndrome.
Age
- Age \<50 years
Other
- Concurrently enrolled into a study that is not approved under the DISCOVERY Co-Enrollment Policy
- Unable to complete study protocol (advanced directives such as comfort measures only, or inability to complete the study due to severe medical/behavioral co-morbidities), as determined by physician investigator during screening process
- Additional exclusion criteria for Tier 2 participants:
- Biologically female individuals who are pregnant or seeking to become pregnant
Who the study is looking for
- Age ≥18 years
- Admitted to the enrolling clinical performance site (CPS) hospital with a diagnosis of acute ischemic stroke (AIS), intracerebral hemorrhage (ICH), or aneurysmal subarachnoid hemorrhage (aSAH)
- Radiographic confirmatory evidence of: (1) AIS (based on a focal area of restricted diffusion on MRI), (2) non-traumatic primary ICH (based on evidence of acute parenchymal hemorrhage on CT or brain MRI) or (3) non-traumatic acute aSAH (based on evidence of subarachnoid hemorrhage on CT or MRI and evidence of aneurysm on CT angiography, MR angiography, or conventional catheter-based angiography)
- Able to complete baseline visit in person or by phone within 6 weeks of stroke onset
- Able to provide informed consent by self or proxy
- Fluent in English or Spanish prior to stroke onset
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (31)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University of Michigan Coordinator of this site? Confirm its status | Ann Arbor | United States | Active, not recruiting |
| University of Maryland Medical Center Coordinator of this site? Confirm its status | Baltimore | United States | Recruiting |
| Boston Medical Center Coordinator of this site? Confirm its status | Boston | United States | Recruiting |
| Massachusetts General Hospital Coordinator of this site? Confirm its status | Boston | United States | Recruiting |
| University of Virginia Coordinator of this site? Confirm its status | Charlottesville | United States | Recruiting |
| The University of Chicago Medical Center Coordinator of this site? Confirm its status | Chicago | United States | Recruiting |
| University of Cincinnati Coordinator of this site? Confirm its status | Cincinnati | United States | Recruiting |
| University of Colorado Coordinator of this site? Confirm its status | Denver | United States | Recruiting |
| Duke University Medical Center Coordinator of this site? Confirm its status | Durham | United States | Recruiting |
| Houston Methodist Research Institute Coordinator of this site? Confirm its status | Houston | United States | Recruiting |
| UTHealth Coordinator of this site? Confirm its status | Houston | United States | Recruiting |
| Indiana University Coordinator of this site? Confirm its status | Indianapolis | United States | Recruiting |
| University of Iowa Coordinator of this site? Confirm its status | Iowa City | United States | Active, not recruiting |
| University of Mississippi Medical Center Coordinator of this site? Confirm its status | Jackson | United States | Recruiting |
| Mayo Clinic Coordinator of this site? Confirm its status | Jacksonville | United States | Recruiting |
| Cedars-Sinai Medical Center Coordinator of this site? Confirm its status | Los Angeles | United States | Recruiting |
| Kaiser Permanente Los Angeles Medical Center Coordinator of this site? Confirm its status | Los Angeles | United States | Recruiting |
| University of California, Los Angeles Coordinator of this site? Confirm its status | Los Angeles | United States | Recruiting |
| Methodist University Hospital Coordinator of this site? Confirm its status | Memphis | United States | Recruiting |
| University of Miami Health System Coordinator of this site? Confirm its status | Miami | United States | Recruiting |
| University of Minnesota Health Coordinator of this site? Confirm its status | Minneapolis | United States | Recruiting |
| Icahn School of Medicine at Mount Sinai Coordinator of this site? Confirm its status | New York | United States | Recruiting |
| The Hospital of the University of Pennsylvania Coordinator of this site? Confirm its status | Philadelphia | United States | Recruiting |
| Barrow Neurological Institute Coordinator of this site? Confirm its status | Phoenix | United States | Recruiting |
| Mayo Clinic Coordinator of this site? Confirm its status | Rochester | United States | Recruiting |
| University of Utah Coordinator of this site? Confirm its status | Salt Lake City | United States | Recruiting |
| University of Texas Health Science Center at San Antonio Coordinator of this site? Confirm its status | San Antonio | United States | Recruiting |
| University of California San Diego Coordinator of this site? Confirm its status | San Diego | United States | Recruiting |
| University of Washington - Harborview Medical Center Coordinator of this site? Confirm its status | Seattle | United States | Recruiting |
| Montefiore Medical Center Coordinator of this site? Confirm its status | The Bronx | United States | Recruiting |
| Wake Forest Baptist Health Coordinator of this site? Confirm its status | Winston-Salem | United States | Active, not recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.