Ambulatory Stroke Unit Treatment for Elderly Patients

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age60+
SponsorUniversity Hospital Heidelberg

About this trial

ARTIFICE is a prospective, multicenter, randomized, controlled, exploratory non-inferiority trial evaluating whether an ambulatory stroke unit model (aSU) is non-inferior to conventional inpatient stroke unit care (SU) in patients aged 60 years or older with acute ischemic stroke, transient ischemic attack (TIA), or retinal ischemia and non-disabling neurological deficits.

Eligible patients are randomized 1:1 to same-day comprehensive ambulatory multiprofessional stroke evaluation (aSU) or guideline-based inpatient stroke unit treatment (SU). The primary endpoint is favorable functional outcome at 90 days, defined as modified Rankin Scale (mRS) 0-2 or return to pre-stroke mRS. Endpoint assessment at 90 days is performed by blinded assessors (PROBE design).

Secondary outcomes include early neurological deterioration, recurrent stroke, delirium, mortality, health-related quality of life, healthcare utilization, and cost-effectiveness. A mixed-methods process evaluation examines feasibility, acceptability, and implementation aspects of the ambulatory care model.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age ≥ 60 years

Diagnosis of acute ischemic stroke (ICD-10 I63.), transient ischemic attack (G45.), or retinal ischemia (H34.*)

Symptom onset ≤ 7 days before enrollment

No or non-disabling newly occurring neurological deficit allowing safe ambulatory management

Disqualifiers

Requirement for urgent surgical or interventional secondary prevention (e.g., carotid revascularization)

Fluctuating stroke symptoms within the previous 48 hours

Acute febrile infection or isolation-requiring infectious disease

Clinically relevant dysphagia with high aspiration risk

Trial design

Design model

Parallel

Treatments tested in this trial

  • Ambulatory Stroke Unit Care

    Other intervention

    Structured ambulatory stroke care model providing same-day neurological assessment, diagnostic work-up, therapeutic evaluation, and multidisciplinary case review, followed by discharge home if medically appropriate.

  • Conventional Stroke Unit Care

    Other intervention

    Standard inpatient stroke unit treatment according to national clinical guidelines, including hospital-based monitoring, diagnostic evaluation, and initiation of secondary prevention.

Treatment groups

400 Participants
are divided into 2 treatment groups
Group A: Ambulatory Stroke Unit Care (aSU)Experimental treatment 1 intervention
Group B: Inpatient Stroke Unit Care (SU)Active comparator 1 intervention

Trial outcomes

Primary outcomes

1

Favorable Functional Outcome at 90 Days

Favorable functional outcome defined as modified Rankin Scale (mRS) score 0-2 or return to pre-stroke mRS level, assessed by blinded outcome assessors.

Time frame
90 days (±14 days) after randomization

Secondary outcomes

1

Early Neurological Deterioration

Increase in National Institutes of Health Stroke Scale (NIHSS) score of ≥4 points compared to baseline.

Time frame
Within 7 days after randomization
2

Recurrent Stroke

Occurrence of recurrent ischemic stroke, hemorrhagic stroke, or transient ischemic attack during follow-up.

Time frame
Up to 90 days after randomization (primary safety observation period)
3

Delirium Occurrence

Occurrence of delirium assessed using the Confusion Assessment Method (CAM).

Time frame
Within 7 days after randomization
4

All-Cause Mortality

Death from any cause.

Time frame
90 days and 12 months after randomization

Other outcomes

Sponsors and contacts

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University Hospital Heidelberg

Lead sponsor

Heinrich-Heine University, Duesseldorf

Collaborator

inav - Institute for Applied Health Services Research GmbH, Berlin, Germany

Collaborator