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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

Full criteria on ClinicalTrials.gov

Sites (31)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
University of Michigan
Coordinator of this site? Confirm its status
Ann ArborUnited StatesActive, not recruiting
University of Maryland Medical Center
Coordinator of this site? Confirm its status
BaltimoreUnited StatesRecruiting
Boston Medical Center
Coordinator of this site? Confirm its status
BostonUnited StatesRecruiting
Massachusetts General Hospital
Coordinator of this site? Confirm its status
BostonUnited StatesRecruiting
University of Virginia
Coordinator of this site? Confirm its status
CharlottesvilleUnited StatesRecruiting
The University of Chicago Medical Center
Coordinator of this site? Confirm its status
ChicagoUnited StatesRecruiting
University of Cincinnati
Coordinator of this site? Confirm its status
CincinnatiUnited StatesRecruiting
University of Colorado
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DenverUnited StatesRecruiting
Duke University Medical Center
Coordinator of this site? Confirm its status
DurhamUnited StatesRecruiting
Houston Methodist Research Institute
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HoustonUnited StatesRecruiting
UTHealth
Coordinator of this site? Confirm its status
HoustonUnited StatesRecruiting
Indiana University
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IndianapolisUnited StatesRecruiting
University of Iowa
Coordinator of this site? Confirm its status
Iowa CityUnited StatesActive, not recruiting
University of Mississippi Medical Center
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JacksonUnited StatesRecruiting
Mayo Clinic
Coordinator of this site? Confirm its status
JacksonvilleUnited StatesRecruiting
Cedars-Sinai Medical Center
Coordinator of this site? Confirm its status
Los AngelesUnited StatesRecruiting
Kaiser Permanente Los Angeles Medical Center
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Los AngelesUnited StatesRecruiting
University of California, Los Angeles
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Los AngelesUnited StatesRecruiting
Methodist University Hospital
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MemphisUnited StatesRecruiting
University of Miami Health System
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MiamiUnited StatesRecruiting
University of Minnesota Health
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MinneapolisUnited StatesRecruiting
Icahn School of Medicine at Mount Sinai
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New YorkUnited StatesRecruiting
The Hospital of the University of Pennsylvania
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PhiladelphiaUnited StatesRecruiting
Barrow Neurological Institute
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PhoenixUnited StatesRecruiting
Mayo Clinic
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RochesterUnited StatesRecruiting
University of Utah
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Salt Lake CityUnited StatesRecruiting
University of Texas Health Science Center at San Antonio
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San AntonioUnited StatesRecruiting
University of California San Diego
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San DiegoUnited StatesRecruiting
University of Washington - Harborview Medical Center
Coordinator of this site? Confirm its status
SeattleUnited StatesRecruiting
Montefiore Medical Center
Coordinator of this site? Confirm its status
The BronxUnited StatesRecruiting
Wake Forest Baptist Health
Coordinator of this site? Confirm its status
Winston-SalemUnited StatesActive, not recruiting

This page is information, not medical advice. Discuss any trial with your doctor.