Post-Market Surveillance Study to Evaluate the Long-Term Safety and Effectiveness of the LVIS Device
Intracranial Aneurysms
What this study involves
The registry does not currently label this study as recruiting. Ask about its status before planning a screening visit.
- Study type
- Observational
- Phase
- Not applicable / not listed
- Age range
- 18 years - Not specified
- Sex eligible
- All sexes
- Healthy volunteers
- Not accepted
- Participants
- 250 Estimated
These are starting points, not an eligibility decision. The research team must review the full requirements.
About the research
The proposed study is a multi-center single arm retrospective and prospective data collection, of patients treated with the LVIS device of specific sizes of 3.5mm, 4.0mm, 4.5mm, 5.5mm with up to 5 years follow-up. Information collected during the study will be standardized across centers to include pre-treatment baseline characteristics of patients including aneurysm(s) symptoms, procedural information, prespecified clinical safety events of interest, and follow-up imaging, clinical visits or telephone calls.
Who may be able to participate?
The list below is the sponsor’s full registry wording. It can include conditions, prior treatment, test results and other requirements. A match in search does not mean you qualify.
Inclusion Criteria:
The following criteria match the FDA-approved indications for use per PMA (P170013)
- Subjects treated with the LVIS® Device in accordance with currently approved indications for use;
- Treatment of wide-necked (neck ≥ 4mm or dome to neck ratio \< 2) intracranial saccular aneurysm arising from a parent vessel with a diameter ≥ 2.0 mm and ≤ 4.5 mm who underwent treatment with LVIS device of researched sizes within the last 5 years.
(Device models: 212517-LVIS, 212525-LVIS, 213015-LVIS, 213025-LVIS, 213041-LVIS, 214035-LVIS, 214049-LVIS; 212912-LVIS, 212917-LVIS, 212922-LVIS, 212928-LVIS, and 212931-LVIS);
- Availability of Medical Health Records;
- Subject whose age is ≥ 18;
- Appropriate or Waived Consent:
1. For retrospective review: Local Institutional Review Board approves the research as exempt, allowing an all-inclusive retrospective examination of medical records documenting treatments using the study devices and available clinical and imaging follow up;
2. For prospective follow up: Subject or his/her Legally Authorized Representative consents to participation in the study follow up visits up to 5 years, and provides a signed informed consent form as applicable;.
Exclusion Criteria:
- Subjects not treated according to the currently approved indications for use
Study population
The study population conforms to currently approved Indications for Use: Subjects with wide-necked (neck ≥ 4 mm or dome to neck ratio \< 2) intracranial, saccular aneurysms arising from a parent vessel with a diameter ≥ 2.0 mm and ≤ 4.5 mm who underwent treatment with LVIS device since approval in the local geography of researched sizes.
Understand screeningTreatment, groups and participation
The registry may describe treatments and study duration without a complete visit calendar. Ask the study team for the exact schedule, procedures, risks, costs and alternatives. Keep your usual care plan unless your treating clinician tells you otherwise.
- Assignment
- Not reported
- Masking
- Not reported
What researchers are measuring
Outcome measures describe what is being studied. They are not proof that a treatment works.
Primary measures
Complete or Stable Raymond Roy II
Time frame: 5 year
The Raymond-Roy occlusion classification (RROC) is an angiographic classification scheme for grading the occlusion of endovascularly treated intracranial aneurysms. It is also known as the Raymond class, Montreal scale or the Raymond Montreal scale
Intracranial hemorrhage including SAH and IPH
Time frame: 5 year
Determined by adverse event adjudication by the clinical events committee
All ischemic and hemorrhagic stroke
Time frame: 5 year
Determined by adverse event adjudication by the clinical events committee
Neurological deaths
Time frame: 5 year
Determined by adverse event adjudication by the clinical events committee
Transient Ischemic Attack
Time frame: 5 year
Determined by adverse event adjudication by the clinical events committee
Parent artery patency
Time frame: 5 year
Determined by the corelab adjudication of images
In-stent stenosis
Time frame: 5 year
Determined by the corelab adjudication of images
Target aneurysm retreatment
Time frame: 5 year
Presented by the subject medical records
Cerebral vasospasm
Time frame: 5 year
Presented by the subject medical records
Review the complete result tables and limitations in the official record.
Open official results ↗Research locations (1)
The overall study status and a local site’s status can differ. Confirm that location’s availability before traveling.
1 locations
MicroventionAliso Viejo, California, United StatesStatus unknown
Study team and timeline
- Lead sponsor
- Microvention-Terumo, Inc.
- Study start
- Nov 17, 2020 Actual
- Primary completion
- Mar 31, 2025 Actual
- Study completion
- Jan 1, 2027 Estimated
- First posted
- Jul 12, 2022 Actual
- Last updated
- Nov 10, 2026 Actual
Official study contacts
No central contact is listed. Check the locations and the official record.
Official study title
Post-Approval Study - Post-Market Surveillance Study to Evaluate the Long-Term Safety and Effectiveness of the LVIS® Device
Ask Wellness Clinical Research
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Source: ClinicalTrials.gov API v2. Information is submitted by sponsors and investigators. NLM does not approve the safety or science of all listed studies. Registry disclaimer.
Retrieved: Nov 12, 2026 · Last registry update: Nov 10, 2026
