The WEB-IT Clinical Study (WEB-IT)

December 9, 2024 updated by: Microvention-Terumo, Inc.

The WEB® Intrasaccular Therapy Study (WEB-IT)

The study is a prospective, multicenter single-arm cohort. Patients with wide neck bifurcation aneurysms (WNBAs) have few choices for safe and effective endovascular treatment. In this study, all patients with qualifying WNBAs will be treated with the WEB. The primary effectiveness outcome of the study is the likelihood of complete intracranial aneurysm occlusion on the 1 year angiogram as adjudicated by a core laboratory.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
150

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Saskatchewan
      • Saskatoon, Saskatchewan, Canada, S7N 0W8
        • Royal University Hospital
  • Denmark
      • Copenhagen, Denmark, 2100
        • Rigshospitalet
  • Germany
      • Erfurt, Germany, 99028
        • Helios Hospital
  • Hungary
      • Budapest, Hungary, 1145
        • National Institute of Neurosciences
  • Turkey
      • Ankara, Turkey
        • Koru Hospital
      • Istanbul, Turkey
        • Marmara University Faculty of Medicine Pendik Training and Research Hospital
  • United States
    • Arizona
      • Phoenix, Arizona, United States, 85013
        • Barrow Neurological Institute
    • California
      • Aliso Viejo, California, United States, 92565
        • Sequent Medical
    • Colorado
      • Englewood, Colorado, United States, 80112
        • Radiology Imaging Associates P.C.
    • Florida
      • Jacksonville, Florida, United States, 32207
        • Lyerly Baptist, Inc
    • Illinois
      • Chicago, Illinois, United States, 60612
        • Rush University Medical Center
    • Kentucky
      • Louisville, Kentucky, United States, 40202
        • University of Louisville
    • Maryland
      • Baltimore, Maryland, United States, 21287
        • Johns Hopkins Hospital
    • Massachusetts
      • Boston, Massachusetts, United States, 02111
        • Tufts Medical Center
      • Boston, Massachusetts, United States, 021115
        • Brigham and Women's Hospital
    • Minnesota
      • Minneapolis, Minnesota, United States, 55407
        • Abbott Northwestern Hospital
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic
    • New York
      • Albany, New York, United States, 12208
        • Albany Medical Center
      • Buffalo, New York, United States, 14203
        • Buffalo General Medical Center
      • New York, New York, United States, 10029
        • The Mount Sinai Medical Center
      • Stony Brook, New York, United States, 11794
        • Stony Brook University
    • North Carolina
      • Charlotte, North Carolina, United States, 28204
        • Carolina NeuroSurgery & Spine Associates, P.A.
    • Ohio
      • Columbus, Ohio, United States, 43214
        • Riverside Methodist Hospital/ Ohio Health Research Institute
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19107
        • Thomas Jefferson University Hospital
    • South Carolina
      • Charleston, South Carolina, United States, 29425
        • Medical University of South Carolina (MUSC)
    • Tennessee
      • Knoxville, Tennessee, United States, 37916
        • Ft. Sanders Regional Medical Center
      • Memphis, Tennessee, United States, 38120
        • Baptist Memorial Hospital
      • Memphis, Tennessee, United States, 38104
        • Methodist University Hospital
    • Texas
      • Houston, Texas, United States, 77030
        • Baylor College of Medicine
      • Houston, Texas, United States, 77030
        • University of Texas Health Science Center at Houston
    • Utah
      • Salt Lake City, Utah, United States, 84132
        • University of Utah Medical Center
    • West Virginia
      • Morgantown, West Virginia, United States, 26505
        • West Virginia University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patient whose age ≥18 and ≤75 years.
  • Patient must have a single ruptured or unruptured IA (intracranial aneurysm) requiring treatment.
  • Patient must sign and date an IRB/EC-approved written informed consent prior to initiation of any study procedures.

Exclusion Criteria:

  • Patient has an IA with characteristics unsuitable for endovascular treatment
  • Patient has stroke-in-evolution within the prior 60 days
  • Patient has had an SAH (subarachnoid hemorrhage) from a nonindex IA or any other intracranial hemorrhage within 90 days
  • Patient's index IA was previously treated
  • Patient is pregnant

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: WEB Aneurysm Embolization Device

The WEB is an intra-aneurysmal device intended for use in endovascular embolization of intracranial aneurysms.

The intended therapeutic effect of the WEB device is to line the neck of the aneurysm with a metallic structure that disrupts the inflow of blood, causing hemostasis within the aneurysm sac, and leading to thrombus formation within the implant.
Device: WEB
The WEB is an intra-aneurysmal device intended for use in endovascular embolization of intracranial aneurysms.
Other Names:
  • WEB Aneurysm Embolization Device

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
The Primary Safety Endpoint Included Any Death or Major Stroke in the First 30 Days and Neurologic Death or Ipsilateral Major Stroke Between Day 31 and Day 365.
Time Frame: 12 months
The study's primary safety endpoint was the proportion of subjects with death of any nonaccidental cause or any major stroke (defined as an ischemic or hemorrhagic stroke resulting in an increase of 4 points or more on the National Institutes of Health Stroke Scale (NIHSS)) within the first 30 days after treatment or major ipsilateral stroke or death due to neurologic cause from day 31 to 365 days after treatment.
12 months
Percentage of Subjects With Complete Aneurysm Occlusion Assessed Using the WEB Occlusion Scale (WOS) Without Retreatment, Recurrent Subarachnoid Hemorrhage, Without Significant Parent Artery Stenosis (>50% Stenosis) at One Year After Treatment
Time Frame: 12 months
The primary effectiveness endpoint was defined as the percentage of subjects with complete aneurysm occlusion assessed using the WEB Occlusion Scale (WOS) without retreatment, recurrent subarachnoid hemorrhage, without significant parent artery stenosis (>50% stenosis) at one year after treatment in the mITT population.
12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Microvention-Terumo, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Adam Arthur, MD, Methodist University Hospital, Memphis, TN
  • Principal Investigator: David Fiorella, MD, Stony Brook University, Stony Brook, NY

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2017

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 14, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 15, 2014

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 16, 2014

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 9, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CP13-001

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings