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Intracranial AneurysmsLVIS PASNCT05453240

Post-Market Surveillance Study to Evaluate the Long-Term Safety and Effectiveness of the LVIS Device

An observational study of Intracranial Aneurysms, run by Microvention-Terumo, Inc. at 1 site in United States.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Intracranial Aneurysms
How many people
250 participants
Where
1 siteUnited States
Study dates
17 Nov 2020to 1 Jan 2026
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

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.

Who may be able to join

  • 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;
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  • Appropriate or Waived Consent:
  • 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;
  • 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;.

Who cannot join

  • Subjects not treated according to the currently approved indications for use

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site
  • Microvention

    Aliso Viejo, California, 92656

Other trials in United States

About this study

Official title: Post-Approval Study - Post-Market Surveillance Study to Evaluate the Long-Term Safety and Effectiveness of the LVIS® Device

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.

Medical subject headings
Intracranial Aneurysm

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Complete or Stable Raymond Roy II

    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

    Measured: 5 year

  2. Intracranial hemorrhage including SAH and IPH

    Determined by adverse event adjudication by the clinical events committee

    Measured: 5 year

  3. All ischemic and hemorrhagic stroke

    Determined by adverse event adjudication by the clinical events committee

    Measured: 5 year

  4. Neurological deaths

    Determined by adverse event adjudication by the clinical events committee

    Measured: 5 year

  5. Transient Ischemic Attack

    Determined by adverse event adjudication by the clinical events committee

    Measured: 5 year

  6. Parent artery patency

    Determined by the corelab adjudication of images

    Measured: 5 year

  7. In-stent stenosis

    Determined by the corelab adjudication of images

    Measured: 5 year

  8. Target aneurysm retreatment

    Presented by the subject medical records

    Measured: 5 year

  9. Cerebral vasospasm

    Presented by the subject medical records

    Measured: 5 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Jul 2022
  2. Study start17 Nov 2020
  3. Primary completion1 Oct 2025 (estimated)
  4. Study completion1 Jan 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
250 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05453240
Sponsor's protocol ID
CL11008
Acronym
LVIS PAS
Status last verified
Jun 2025
First submitted
1 Jul 2022
Last updated
17 Jun 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Intracranial Aneurysms, run by Microvention-Terumo, Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 17 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Complete or Stable Raymond Roy II (time frame: 5 year). The study lists 9 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Jun 2025.

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