Pilot Study of Acute Stroke Using the Brainpulse™

Jan Medical, Inc.252 enrolled

Overview

The aim of this pilot study is to collect data on stroke patients and non-stroke patients or healthy volunteers using the BrainPulse Stroke Monitor. Subject characteristics, diagnostic procedures and clinical outcomes will be documented as part of the data collected to assess the clinical utility of the BrainPulse device. All eligible patients and healthy volunteers will be enrolled and assigned to a study Group based on confirmation of their diagnosis: Acute Ischemic Stroke, Hemorrhagic Stroke, Transient Ischemic Attack or No Stroke. The data collected from the BrainPulse will be compared across the different study groups in an attempt to distinguish stroke from other non-stroke conditions that present with similar symptoms and LVO from non-LVO types of strokes. Further assessments will also be made to evaluate if the BrainPulse can identify the presence of stroke.

The study is a prospective, non-randomized, non-blinded, hospital-based study of patients presenting with acute stroke symptoms within 48 hours of symptom onset (last known normal or actual time) as evidenced by radiological imaging. The study will be executed in two parts: Study Phase I and Study Phase II. Each study phase will consist of the same sequence of events and study procedures. The first part of the study is designed to enroll a smaller sample size to evaluate the feasibility of incorporating the BrainPulse device in the Stroke patient care workflow. Patients will be consecutively recruited and once patients have met eligibility, they will be assigned to one of the four study Groups based on their confirmed clinical diagnosis. Each subject will complete one BrainPulse recording before neuro-intervention and within four hours of IV pharmacologic intervention. All subjects will also complete comprehensive neurological, cognitive and NIH Stroke Scale (NIHSS) assessments. Additionally, Ischemic Stroke subjects (Group A) that receive neuro-intervention will complete one additional, and optional BrainPulse recording along with a neurological exam after intervention. If these procedures have been completed as part of standard of care, the data can be captured directly from the medical records. If such procedures were not conducted as part of hospital's standard of care, they will need to be completed for the purpose of the study.

Study Type

OBSERVATIONAL

Enrollment

252

Interventions

BrainPulse DeviceDEVICE

The BrainPulse is used on a patient's head to non-invasively detect, amplify and capture the skull motion caused by pulsatile cerebral blood flow from the cardiac cycle. The BrainPulse consists of a reusable headset that contains the accelerometers used to measure motion caused by pulsatile cerebral blood flow. The system is powered by a rechargeable battery pack. The headset is placed on the subject's head and outputs data to a data collector that forwards the data to the computer. Each accelerometer has an attached tip that makes contact with the subject's head through hair. The headset also includes a photoplethysmograph (PPG) that simultaneously captures the subject's heart-rate information. There is no energy delivered to the brain or subject by these highly sensitive sensors.

Eligibility

Sex: ALLMin age: 18 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: 1. Male or female subjects 18 years or older 2. Patient undergoes or will undergo radiological imaging (CT/MR) as part of stroke evaluation (n/a for Group D2) 3. Demonstrated at least 1 of the following symptoms (n/a for Group D2): 1. Hemiparesis, monoparesis, or quadriparesis 2. Hemisensory deficits 3. Monocular/binocular visual loss 4. Visual field deficits 5. Diplopia 6. Dysarthria 7. Facial droop 8. Ataxia 9. Vertigo 10. Aphasia 11. Severe and sudden onset of headache 12. Nausea, and/or vomiting 13. Dizziness 14. Altered or loss of consciousness 15. Imbalance/ Incoordination 4. Last known normal or actual time point, whichever is known, since commencement of symptoms \< 48 hours prior to enrollment (n/a for Group D2) 5. Consent procedures followed per applicable IRB approvals at site Exclusion Criteria: 1. Not a candidate for radiological imaging (CT/MR) or angiography (CTA/MRA/DSA) (n/a for Group D2) 2. Patient meets the hospital criteria for brain death 3. Wound or laceration on the head in the area of one of the BrainPulse sensors that would impede use of the BrainPulse device 4. Any serious medical, social or psychological condition that in the opinion of the investigator would disqualify a patient from participation 5. Symptoms due to head trauma 6. IV tPA commenced or completed \> 4 hours ago 7. Any neuro-intervention commenced or completed between admission and time of enrollment 8. If does not satisfy the eligibility criteria for groups A, B, C, and D.

Outcomes

Primary Outcomes

Compare Stroke subject recordings with non-stroke subject recordings

The primary endpoint in Part I of the study is to enroll and record BrainPulse data from 35 eligible subjects who present with classic stroke symptoms and either have a confirmed diagnosis of stroke or no stroke. The BrainPulse device will be used to analyze and compare the differences in signal characteristics between stroke, TIA and control subjects.

Time frame: 6 months

Compare differences in signal charactertistics between LVO stroke and all other subjects

BrainPulse signal of all subjects will be analyzed to compare the difference in signal characteristics between LVO stroke and all other subjects enrolled in the study.

Time frame: 12 months

Secondary Outcomes

Compare Ischemic stroke subject recordings with hemorrhagic stroke or stroke mimic subject recordings

BrainPulse signal will be analyzed to compare the similarity and difference of the BrainPulse signal between hemorrhagic stroke, ischemic stroke subjects or stroke mimics.