Clinician JUdgment Versus Risk Score to Predict Stroke outComes: The JURASSIC Clinical Trial

Study Overview
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Brief Summary
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Background: Several risk score models are now available to assist clinicians estimate outcomes after an acute ischemic stroke. Limited information is available on the predictive value of these scores compared to real outcomes and clinical judgment. Objectives: To compare clinician judgment with the use of a validated stroke risk score (iScore) and patients' outcomes.

Detailed Description
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A convenience sample of 111 practicing clinicians (general and vascular neurologists, internists, and ER physicians) predicted the outcomes of 5 stroke patients based on case summaries. Cases were randomly selected as being representative of the 10 most common clinical scenarios (n=1,415) from a pool of over 12,000 patients admitted to stroke centers in Ontario, Canada. Stroke cases had known clinical presentation, comorbidities, stroke severity, and outcomes. All participants are active practicing physicians caring for patients with acute stroke. Conditions were standardized to mimic clinical practice. Main outcomes of interest included 30-day mortality and death or disability at discharge. Secondary outcome: death or institutionalization at discharge

Official Title
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Clinician JUdgment Versus Risk Score to Predict Stroke outComes:

Conditions
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Stroke, Ischemic Stroke, Cerebrovascular Disease

Intervention / Treatment
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* Other: Clinical scenarios


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Practicing and active physicians managing patients with stroke Exclusion Criteria: retired physicians physicians not exposed to care for stroke patients

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Randomized clinical scenarios<br>Clinicians are randomized to a sequence of 5 clinical scenarios | Other: Clinical scenarios<br>* Clinicians will be randomized to a sequence of 5 clinical scenarios with a variable range of expected outcome [i.e. from low (<10%) to high (>50%) expected risk death at 30 days].<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 30 Day Mortality or Disability (mRS >3) at discharge |  | Death after 30 days from ischemic stroke onset or Disability following hospital discharge | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Death at 30 days |  | 30 days | 
| Death or institutionalization at discharge |  | up to 30 days after discharge | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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stroke, risk score, iScore, outcomes, mortality, disability, institutionalization