NCT06398366

Brief Summary

This is a multi-center retrospective analysis of consecutive adult patients with cryptogenic stroke patients following a comprehensive workup for the underlying stroke etiology. Patients will be eligible for inclusion if the index stroke event occurred between 1/1/2016 and 06/30/2022.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,000

participants targeted

Target at P75+ for all trials

Timeline
8mo left

Started Sep 2022

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

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 Progress85%
Sep 2022Dec 2026

Study Start

First participant enrolled

September 14, 2022

Completed
1.2 years until next milestone

First Submitted

Initial submission to the registry

December 14, 2023

Completed
5 months until next milestone

First Posted

Study publicly available on registry

May 3, 2024

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2025

Completed
1.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

January 23, 2025

Status Verified

January 1, 2025

Enrollment Period

2.7 years

First QC Date

December 14, 2023

Last Update Submit

January 21, 2025

Conditions

Keywords

carotid atherosclerosisheart failurecardiomyopathyembolic stroke

Outcome Measures

Primary Outcomes (3)

  • Prevalence of potential embolic sources

    Epidemiological estimates of prevalence of various potential embolic sources in the cryptogenic stroke population will be calculated across the cohort

    through study completion, an average of 2 years

  • The odds of recurrent stroke, major bleeding (according to the International Society of Thrombosis and Hemostasis), and/or death will be estimated across the cohort, with annualized event rates also calculated

    . This outcome will be evaluated across each subgroup of potential embolic source (e.g., valvular lesions present vs. absent, nonstenotic carotid plaque present or absent). Adjusted estimates of event probability will be calculated between patients treated with various antithrombotic types (or class, e.g. anticoagulant vs. antiplatelet) using propensity score matching according to propensity of antithrombotic use

    At any point during follow-up over a minimum of 90 days after stroke (average of 2 years)

  • Number of patients treated with antiplatelet, anticoagulant, or combination antithrombotic therapy

    Following the index cryptogenic stroke, the outcome of specific antithrombotic treatment will be compared between patient groups (antiplatelet, anticoagulant, combination antithrombotic)

    through study completion, an average of 2 years

Study Arms (1)

Cooper Health System

Patients from Cooper Health System and additional sites

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Consecutive adult patients (18 yrs of age or older) diagnosed with cryptogenic stroke despite complete neurodiagnostic workup. Patients admitted between 1/1/2016 and 6/30/2022 with acute ischemic stroke will be screened for inclusion.

You may qualify if:

  • Consecutive adult patients (18 yrs of age or older) diagnosed with cryptogenic stroke despite complete neurodiagnostic workup, including the following:
  • Left ventricular ejection fraction greater than or equal to 20%

You may not qualify if:

  • Patients with an established stroke mechanism that is diagnosed prior to or at the time of the index stroke event. Examples include but are not limited to:
  • A. New diagnosis of atrial fibrillation during index stroke admission, or history of prior atrial fibrillation B. Cervical or intracranial atherosclerosis in a vessel supplying the infarcted brain region, with 50% luminal stenosis by NASCET criteria C. Cervical or intracranial arterial dissection D. Inflammatory vasculopathy (e.g., giant cell arteritis, primary central nervous system angiitis) E. Acute myocardial infarction or cardiac arrest at the time of stroke F. Intracardiac thrombus (e.g., left ventricular, left atrial, left atrial appendage thrombus), irrespective of cardiac function G. Small vessel disease (defined by the presence of a single, subcortical infarction less than 1.5cm in diameter on computed tomography, less than 2.0cm in diameter on diffusion-weighted imaging, or without radiographic evidence of infarction BUT with symptoms consistent with a subcortical syndrome-e.g., pure motor hemiparesis, pure hemisensory impairment, mixed motor-sensory syndrome, ataxic hemiparesis, or dysarthria-clumsy hand syndrome)
  • Patients enrolled in a randomized clinical trial in which antithrombotic group is blinded to the investigator
  • Transient ischemic attack
  • Primary intracerebral hemorrhage

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cooper Health System

Camden, New Jersey, 08013, United States

Location

Related Publications (1)

  • Siegler JE, Goicoechea EB, Penckofer M, Eklund K, Yaghi S, Stretz C, Lineback CM, Stamm B, Peter S, D'Souza M, Conyers FG, Khasiyev F, Kerrigan D, Lewis S, Ali H, Aboul-Nour H, Sharma R, Nahab FB, Glover P, Thompson SL, Alshaer QN, Thottempudi N, de Havenon A, Culbertson CJ, Melkumova E, Chionatos RA, Jillella DV, Daniel JA, Ro J, Frankel MR, Dumitrascu OM, Brown S, Parikh P, Doolittle C, Yahnke I, Sathya A, Kang J, Kirchhoffer K, Bowman A, Smith MM, Brorson JR, Asabere A, Shahrivari M, Elangovan C, Sheibani N, Krishnaiah B, Gaudio E, Sloane KL, Rothstein A, Alvi MM, Annam S, Amankwah C, Kam W, Abburi N, Farooqui M, Rojas-Soto D, Molaie A, Khezri N, Zubair AS, Abbasi M, Van Coevering RJ, Chen L, Nedelcu S, Herpich F, Chahien D, Sehgal S, Liebeskind DS, Linares G, Zha A, Sarkar M, Xi R, Nelson A, Abu Qdais A, Al Kasab S, Singh E, Patel V, Aziz YN, Mehndiratta P, DeMarco A, Sharrief A, Cucchiara B, Salehi Omran S, Nguyen TN, Dubinski M, Ackerman J, Thon J. Outcomes of Patients With Embolic Stroke of Undetermined Source Treated With Antiplatelet Agents or Anticoagulation: A Multicenter Cohort Study. Neurology. 2025 Aug 12;105(3):e213876. doi: 10.1212/WNL.0000000000213876. Epub 2025 Jul 3.

MeSH Terms

Conditions

Ischemic StrokeCarotid Artery DiseasesHeart FailureCardiomyopathiesEmbolic Stroke

Condition Hierarchy (Ancestors)

StrokeCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular DiseasesHeart Diseases

Study Officials

  • Jesse Thon

    Cooper Health System

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

December 14, 2023

First Posted

May 3, 2024

Study Start

September 14, 2022

Primary Completion

May 30, 2025

Study Completion (Estimated)

December 31, 2026

Last Updated

January 23, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations