Study Stopped
Insufficient inclusion and end of funding
Improved Prediction of Recurrent Stroke and Detection of Small Volume Stroke
ENCLOSE
1 other identifier
observational
439
1 country
3
Brief Summary
Rationale: Over 20.000 people suffer an ischemic stroke in the Netherlands each year. Large artery occlusions are easy to identify and can be treated with endovascular clot removal. 70% of patient will however suffer from a more distal occlusion resulting in small volume stroke or a transient ischemic attack (TIA). Small ischemic lesions are hard to detect with current acute stroke protocols. TIA and small volume stroke patients, are at an increased risk for recurrent stroke, making immediate diagnosis critical. Because thrombo-embolic sources often cause these strokes, identifying and treating the underlying aetiology has the potential to radically lower the risk of recurrence and improve the outcome of these patients. Objectives: 1) To identify clinical and imaging predictors of recurrent stroke; 2) To improve early detection of small volume stroke with admission computed tomography perfusion (CTP) in patients with suspected acute ischemic stroke with small volume stroke or no ischemia on admission imaging. Study design: Prospective, multicenter cohort study. Study population: All patients who visited the University Medical Center (UMC) Utrecht, the Amsterdam University Medical Centers (Amsterdam UMC), location Academic Medical Center (AMC) or the St. Antonius Hospital and who underwent a CT-scan of the brain within 9 hours after onset of stroke symptoms with an age ≥18 years. Within 36 months, 720 patients will be enrolled in the study. Of these patients, 300 patients will be included for the follow-up magnetic resonance imaging (MRI). Main study parameters/endpoints: The main study endpoints are: 1) Stroke recurrence rate at 2 years; 2) Presence and volume of acute ischemic lesions on follow-up diffusion weighted imaging MRI.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jan 2018
Longer than P75 for all trials
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 23, 2018
CompletedFirst Submitted
Initial submission to the registry
July 10, 2019
CompletedFirst Posted
Study publicly available on registry
July 15, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2024
CompletedMay 17, 2024
May 1, 2024
6 years
July 10, 2019
May 16, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Recurrent ischemic stroke
2 years
Secondary Outcomes (2)
Recurrent ischemic stroke
90 days
modified Rankin scale
90 days
Eligibility Criteria
Patients 18 years or older with acute stroke symptoms who visited the UMC Utrecht, the Amsterdam UMC, location AMC or the St. Antonius Hospital and who underwent a CT-scan within 9 hours after onset of stroke symptoms.
You may qualify if:
- Age ≥18 years;
- Time from symptom onset until imaging is \<9 hours\*;
- Clinical diagnosis of acute ischemic stroke or TIA;
- Informed consent from patient or family after the admission scan (unless the patient died).
- Patients who awaken with stroke symptoms can only be included if they went to sleep without any stroke symptoms and the time from going to sleep until imaging is less than 9 hours.
You may not qualify if:
- Patients with another diagnosis such as intracerebral hemorrhage, subarachnoid hemorrhage or tumor;
- Patients with known contrast allergy or renal failure.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- UMC Utrechtlead
- Dutch Heart Foundationcollaborator
- Netherlands Organisation for Scientific Researchcollaborator
Study Sites (3)
Amsterdam UMC, location AMC
Amsterdam, North Holland, 1105 AZ, Netherlands
St. Antonius Hospital
Nieuwegein, Utrecht, 3435 CM, Netherlands
University Medical Center Utrecht
Utrecht, 3584 CX, Netherlands
Related Publications (2)
Kauw F, Velthuis BK, Takx RAP, Guglielmo M, Cramer MJ, van Ommen F, Bos A, Bennink E, Kappelle LJ, de Jong HWAM, Dankbaar JW. Detection of Cardioembolic Sources With Nongated Cardiac Computed Tomography Angiography in Acute Stroke: Results From the ENCLOSE Study. Stroke. 2023 Mar;54(3):821-830. doi: 10.1161/STROKEAHA.122.041018. Epub 2023 Feb 13.
PMID: 36779342DERIVEDKauw F, van Ommen F, Bennink E, Cramer MJ, Kappelle LJ, Takx RA, Velthuis BK, Viergever MA, Wouter van Es H, Schonewille WJ, Coutinho JM, Majoie CB, Marquering HA, de Jong HW, Dankbaar JW. Early detection of small volume stroke and thromboembolic sources with computed tomography: Rationale and design of the ENCLOSE study. Eur Stroke J. 2020 Dec;5(4):432-440. doi: 10.1177/2396987320966420. Epub 2020 Oct 23.
PMID: 33598562DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
July 10, 2019
First Posted
July 15, 2019
Study Start
January 23, 2018
Primary Completion
February 1, 2024
Study Completion
February 1, 2024
Last Updated
May 17, 2024
Record last verified: 2024-05
Data Sharing
- IPD Sharing
- Will not share