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DAISe 1 Feasibility Study to Evaluate the DAISe Thrombectomy System for Acute Ischemic Stroke

M

MIVI Neuroscience

Status

Terminated

Conditions

Acute Ischemic Stroke

Treatments

Device: DAISe Thrombectomy System

Study type

Interventional

Funder types

Industry

Identifiers

Details and patient eligibility

About

The study is a prospective, multi-center, single arm, feasibility study that will enroll a maximum of 36 subjects. The maximum enrollment is 10 subjects per site. A maximum of 6 investigational centers in Europe will participate. Enrollment is expected to take about 9 months, subject participation will last about 3 months.

Enrollment

16 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age 18 years or older.
  • Pre-stroke (24 hours prior to stroke onset) independent functional status in activities of daily living with modified Rankin Score 0-1. Patient must be living in their own home, apartment or seniors lodge where no nursing care is required.
  • Diagnosis of acute ischemic stroke and referred to interventional neuroradiology center for mechanical thrombectomy with study enrollment time planned within 8 hours from onset of symptoms.
  • Disabling stroke defined as a baseline NIHSS > 6.
  • Thrombolytic therapy (IV tPA) received within 4.5 hours of onset/ last known well according to prescribed dosing OR documented ineligibility for thrombolytic therapy.
  • Confirmed symptomatic, large vessel occlusion of the intracranial internal carotid artery, middle cerebral artery, M1, or M2 with mTICI 0-1.
  • The following baseline imaging criteria should be met: MRI criterion- volume of diffusion restriction visually assessed ≤50 mL OR ASPECTs score 5-10 or T criterion- ASPECTS 6-10 on imaging NE-CT, CTA and/or CTP available
  • Signed informed consent from patient or legal representative or if applicable, documented medical necessity for inclusion in a clinical study in an emergency followed by signed informed consent.
  • Patient is affiliated in the social security system.

Exclusion criteria

  • Computed tomography (CT) or Magnetic Resonance Imaging (MRI) evidence of recent/ fresh hemorrhage on presentation.
  • Clinical history, past imaging or clinical judgment suggests that the intracranial occlusion is chronic.
  • Rapidly improving neurological deficits based on the investigator's clinical judgement.
  • Pregnancy; if a woman is of child-bearing potential and urine or serum beta HCG test is positive.
  • Severe contrast allergy or absolute contraindication to iodinated contrast.
  • Renal failure (serum creatinine level ≥ 3 mg/dL or on dialysis).
  • Severe, sustained hypertension resistant to treatment (SBP >185 mmHg or DBP >110 mmHg).
  • Use of warfarin anticoagulation (or other applicable anti-vitamin k anticoagulants) with International Normalized Ratio (INR) > 3.0 at the time of the procedure or any known hemorrhagic or coagulation deficiency.
  • Use of a direct thrombin inhibitor within the last 48 hours; partial thromboplastin time (PTT) > 2.0 times the normal prior to procedure.
  • Cerebral vasculitis or evidence of active systemic infection.
  • Suspicion of aortic dissection, presumed septic embolus or suspicion of bacterial endocarditis.
  • Clinical symptoms suggestive of bilateral stroke or occlusions in multiple vascular territories (e.g., bilateral anterior circulation, or anterior/posterior circulation).
  • Seizure due to stroke.
  • Difficult endovascular access, difficult aortic arch or severe neurovascular tortuosity that will result in an inability to deliver endovascular therapy.
  • Evidence of dissection in the carotid or target artery for treatment.
  • Presence of a carotid artery stenosis or occlusion requiring balloon angioplasty or stenting at time of the procedure.
  • A severe or fatal comorbid illness that will prevent improvement or follow-up or that will render the procedure unlikely to benefit the patient.
  • Patient cannot undergo an MRI of the head due to MRI contraindication.
  • Patient is unable or unwilling complete follow up visits.
  • If before the stroke, the patient is under a legal protective measure, they will not be able to participate in the study.

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

16 participants in 1 patient group

DAISe Thrombectomy System
Experimental group
Description:
Mechanical thrombectomy utilizing the DAISe Thrombectomy System, consisting of the DAISe Thrombectomy Device and DAISe Delivery Catheter, used with aspiration.
Treatment:
Device: DAISe Thrombectomy System

Trial contacts and locations

6

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Central trial contact

Heather Cronin

Data sourced from clinicaltrials.gov

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