Status and phase
Conditions
Treatments
About
To establish the safety and effectiveness of the SEAL™ Saccular Endovascular Aneurysm Lattice system for the treatment of saccular intracranial aneurysms.
The data from this study will be used to support a premarket approval (PMA) submission.
Full description
Prospective, United States (US) and Outside of the United States (OUS) single-arm, multicenter, interventional study. Patients presenting with evidence of Wide Neck unruptured or ruptured intracranial aneurysm (≤ 19 mm in widest diameter) requiring treatment will be enrolled into the study and treated using the SEAL™ System. Immediate post-procedure angiographic findings, clinical presentation, safety, and optional imaging follow-up for each subject will be collected at 24 hours or discharge, 3 months, 6 months, and required primary end point 12 months post-procedure. Digital subtraction angiography (DSA) at 12 months will be required imaging for the primary effectiveness endpoint assessment. After the PMA application, subjects follow up will continue annually for a total of five years post procedure.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
22 to 80 years of age at the time of screening.
Unruptured aneurysm requiring endovascular treatment suitable for SEAL device and meet the American Heart Association (AHA) guidelines for management of unruptured aneurysm.5
Ruptured aneurysm A ruptured aneurysm is defined as a patient with computed tomography (CT), magnetic resonance imaging (MRI), or lumbar puncture (LP) evidence of Subarachnoid Hemorrhage (SAH) attributed to the index aneurysm within the last 60 days. Ruptured aneurysm may be included according to the following criteria:
The subject is neurologically stable with no seizure at the onset of the SAH, not requiring External Ventricular Drain (EVD) placement prior to inclusion.
The index intracranial aneurysm (IA) to be treated must include the following features:
Aneurysm treatment does not require the preplanned use of any additional implanted devices.
Subject is able to maintain compliance with all aspects of screening, evaluation, treatment, and post-procedure follow-up schedule.
Baseline pre-procedure mRS of 0-2 for unruptured aneurysm and 0-2 prior to the SAH for the ruptured aneurysms.
Ability to obtain written informed consent document (ICD) subject or legally authorized representative in SAH subjects prior to the initiation of any study procedures.
Exclusion criteria
Aneurysm features unsuitable for endovascular treatment with an intrasaccular device such as fusiform, dissecting pseudo aneurysm, or mycotic aneurysm.
Aneurysms smaller than 2 mm and larger than 19 mm in dome width.
Patients with untreated multiple aneurysms [≥2mm]. Patient with multiple aneurysms, should have the none index aneurysms treated no less than 60 days prior to enrollment in the SEAL™ IT trial, ≤ 7mm, and not treated with flow diverter or stent assisted endovascular therapy.
Inability to access target aneurysm with microcatheter due to intracranial atherosclerosis, proximal or intracranial vessel tortuosity or poor aneurysm angle take-off.
Patients with two 360 degrees loops in the carotid or vertebral arteries.
Presence of vascular disease or other vascular abnormality that could prohibit access to index aneurysm such carotid stenosis or diminished caliber of the target artery.
Clinical, angiographic, or CT evidence of central nervous system (CNS) arterial vasculitis, Moyamoya disease, intracranial tumor (except small meningioma < 3 cm), or any other intracranial vascular malformations.
Patients with high risk for recurrent ischemic stroke due to previous history of ischemic stroke symptoms such as TIAs, minor, or major strokes within the past 60 days. Other stroke risk factors such as intracranial stenosis or atrial fibrillation.
Patients with hemodynamic or medical compromise due to medical comorbidities such as severe unstable congestive heart failure (ejection fraction <30%) or severe chronic obstructive pulmonary disease (COPD) requiring home oxygen.
Target index aneurysm that has been previously treated and contains devices, implants, or coils that could interfere with correct SEAL™ device placement.
Subject is pregnant or a lactating female (For females of child-bearing potential, a positive pregnancy test within 7 days of the day of procedure or refusal to use a medically accepted method of birth control for the duration of the study.
Currently on anticoagulation therapy or has a known blood dyscrasia, coagulopathy, or hemoglobinopathy.
Currently enrolled in another investigational study or post-market study that could affect the safety and efficacy of aneurysm treatment or interfere with the study follow-up schedule.
Presence of an acute life-threatening illness requiring treatment.
Life expectancy of < 5 years.
Subject has an uncontrolled co-morbid medical, neurological, or psychiatric condition, that would adversely affect participation in the study procedures and follow up.
Patient with chronic kidney disease (and not on dialysis) with creatinine > 2.0.
Subject with a known, uncontrolled hypersensitivity to iodine-based contrast dye, procedure related materials or medications, or device components^
Subject is a prisoner or member of other vulnerable population.
The subject that is in the opinion of the treating interventionalist is not suitable for the study.
Subjects with history of intracranial bleeding (SAH, SDH or ICH) within 90 days of the index aneurysm treatment.
Primary purpose
Allocation
Interventional model
Masking
279 participants in 1 patient group
Loading...
Central trial contact
Osama O Zaidat, MD, MS; Alyssa Axe, MBA, MPH
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal