Real-World Study of Woven EndoBridge for Intracranial Aneurysm Treatment

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
AgeNot listed
SponsorXuanwu Hospital, Beijing

About this trial

We designed the Real-World Study of Woven EndoBridge for Intracranial Aneurysm Treatment (WEB-RWS), an ambidirectional, multicenter, post-market real-world study with a prospective active surveillance component. The study will include patients with IAs treated with commercially available WEB devices under the direction of treating physicians in routine clinical practice. Clinical, procedural, imaging, and safety data will be collected using a standardized electronic data capture system, with safety events adjudicated by an independent clinical events committee and imaging outcomes assessed by an independent core laboratory. The primary objective is to evaluate 12-month adequate aneurysm occlusion and major adverse events after WEB treatment. The study is expected to provide comprehensive post-market evidence on the real-world performance of the WEB device in China, including its safety, effectiveness, clinical appropriateness, and health economic value in routine neurointerventional practice.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Participants of any age and sex.

Patients treated for an intracranial aneurysm using a commercially available MicroVention Woven EndoBridge device.

Patients who completed at least one postoperative imaging follow-up.

Participants of any age and sex.

Disqualifiers

Patients treated with a Woven EndoBridge device for whom intraoperative or postoperative follow-up imaging data are not available.

Patients considered by the investigator to be unsuitable for participation in this study.

Participants who are currently participating in, or plan to participate during the follow-up period, another clinical study that may affect the results of this study.

Patients who are currently unable or expected to be unable to complete follow-up.

Trial population

The study population includes patients with intracranial aneurysms who are treated with the commercially available MicroVention Woven EndoBridge device as part of routine clinical care at participating study centers in China. The registry includes both retrospectively identified patients and prospectively enrolled patients. Clinical, procedural, imaging, and safety data will be collected according to the study protocol.

Trial design

Design model

Cohort

Time perspective

Other

Treatments tested in this trial

  • Intrasaccular Flow Disruption Device

    Device

    The intervention of interest is treatment of intracranial aneurysms using the commercially available MicroVention Woven EndoBridge device. The device is an intrasaccular flow disruption device used during endovascular treatment according to routine clinical practice and the approved instructions for use. Treatment decisions and procedural details are determined by the treating physician.

Treatment groups

1,000 Participants
are divided into 1 treatment group
Group A: Patients Treated With the Woven EndoBridge Device1 intervention

Trial outcomes

Primary outcomes

1

Incidence of Major Adverse Events

Major adverse events include unexpected death or major stroke within 30 days after the procedure, and neurological death or major stroke from 31 days to 1 year after the procedure. Major stroke is defined as an ischemic or hemorrhagic stroke associated with an increase of more than 4 points in the NIHSS score.

Time frame
Up to 1 Year After the Index Procedure
2

Proportion of Aneurysms With Adequate Occlusion Based on Raymond-Roy Occlusion Classification

Adequate aneurysm occlusion is defined as Raymond-Roy Occlusion Classification class I or II at the 12-month follow-up. Class I indicates complete occlusion, and class II indicates residual neck without contrast filling of the aneurysm sac.

Time frame
12 Months After the Index Procedure

Secondary outcomes

1

Proportion of Aneurysms With Adequate Occlusion Based on WEB Occlusion Scale

Adequate aneurysm occlusion will be assessed by an independent imaging core laboratory using the Woven EndoBridge Occlusion Scale. The Woven EndoBridge Occlusion Scale is a categorical angiographic scale ranging from Class A to Class D: Class A indicates complete occlusion, Class B indicates complete occlusion with recess filling, Class C indicates neck remnant, and Class D indicates aneurysm remnant. Adequate occlusion is defined as Class A, Class B, or Class C. Class D indicates inadequate occlusion. This is a categorical scale; higher or lower numerical scores are not applicable.

Time frame
12 Months After the Index Procedure
2

Aneurysm Occlusion Status Based on Raymond-Roy Occlusion Classification and WEB Occlusion Scale

Aneurysm occlusion status will be assessed by an independent imaging core laboratory using the Raymond-Roy Occlusion Classification and the Woven EndoBridge Occlusion Scale. The Raymond-Roy Occlusion Classification is a categorical angiographic classification ranging from Class I to Class III: Class I indicates complete occlusion, Class II indicates residual neck, and Class III indicates residual aneurysm. The Woven EndoBridge Occlusion Scale is a categorical angiographic scale ranging from Class A to Class D: Class A indicates complete occlusion, Class B indicates complete occlusion with recess filling, Class C indicates neck remnant, and Class D indicates aneurysm remnant. These are categorical scales; higher or lower numerical scores are not applicable.

Time frame
12 Months After the Index Procedure
3

Aneurysm Occlusion Without Rebleeding in Ruptured Aneurysms

In participants with ruptured aneurysms, aneurysm occlusion status will be assessed together with the absence of rebleeding.

Time frame
12 Months After the Index Procedure
4

Aneurysm Occlusion Without Rebleeding or Retreatment in Aneurysms With Residual Filling

In aneurysms with residual filling, occlusion status will be assessed together with absence of rebleeding in ruptured aneurysms or absence of retreatment.

Time frame
12 Months After the Index Procedure

Other outcomes

1

Healthcare resource utilization

Healthcare resource utilization will be assessed by collecting data on procedure-related and follow-up medical resource use, including length of hospital stay, intensive care unit admission, additional procedures or retreatment, rehospitalization, emergency visits, outpatient visits, imaging examinations, and other aneurysm treatment-related healthcare services.

Time frame
From the index procedure through 12 months after treatment
2

Health-related quality of life

Health-related quality of life will be assessed using protocol-specified patient-reported quality-of-life instruments. Changes in health-related quality-of-life scores from baseline to follow-up will be evaluated.

Time frame
Baseline and 12 months after treatment

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Xuanwu Hospital, Beijing

Lead sponsor

Shenzhen Second People's Hospital

Collaborator

ZhuHai Hospital

Collaborator

Third Affiliated Hospital, Sun Yat-Sen University

Collaborator

First Affiliated Hospital, Sun Yat-Sen University

Collaborator

Guangdong Provincial People's Hospital

Collaborator

Guangdong Second Provincial General Hospital

Collaborator

Zhujiang Hospital

Collaborator

Nanfang Hospital, Southern Medical University

Collaborator

The First Medical Center of Chinese PLA General Hospital

Collaborator

Beijing Chao Yang Hospital

Collaborator

Beijing Tiantan Hospital

Collaborator

Zhongnan Hospital

Collaborator

Tongji Hospital

Collaborator

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Collaborator

Huashan Hospital

Collaborator

Fudan University

Collaborator

RenJi Hospital

Collaborator

Ruijin Hospital

Collaborator

Henan Provincial People's Hospital

Collaborator

The First Affiliated Hospital of Zhengzhou University

Collaborator

Nanyang Central Hospital

Collaborator

First Affiliated Hospital Xi'an Jiaotong University

Collaborator

The First Affiliated Hospital of Air Force Medicial University

Collaborator

The Second Affiliated Hospital of Air Force Military Medical University

Collaborator

Sichuan Provincial People's Hospital

Collaborator

West China Hospital

Collaborator

The First Affiliated Hospital of Anhui Medical University

Collaborator

First Affiliated Hospital of Harbin Medical University

Collaborator

The Second Affiliated Hospital of Harbin Medical University

Collaborator

Xiangya Hospital of Central South University

Collaborator

The Second Xiangya Hospital, Central South University

Collaborator

The First Hospital of Jilin University

Collaborator

Second Hospital of Jilin University

Collaborator

Nanjing Gulou Hospital

Collaborator

First Hospital of China Medical University

Collaborator

Qilu Hospital of Shandong University

Collaborator

First Affiliated Hospital of Chongqing Medical University

Collaborator

People's Hospital of Guangxi Zhuang Autonomous Region

Collaborator

The Affiliated Hospital Of Guizhou Medical University

Collaborator

First Affiliated Hospital of Fujian Medical University

Collaborator

MicroVention, Inc., a Terumo company

Collaborator

Anhui Provincial Hospital

Collaborator

Zhongshan Hospital of Hubei Province

Collaborator

Beijing Haidian Hospital

Collaborator

Peking University Third Hospital

Collaborator

Beijing Anzhen Hospital

Collaborator

Yichang Central People's Hospital

Collaborator

The General Hospital of Eastern Theater Command

Collaborator

The General Hospital of Northern Theater Command

Collaborator

Southwest Hospital, China

Collaborator

Guangxi Hospital of the First Affiliated Hospital, Sun Yat-sen University

Collaborator

Affiliated Hospital of Yunnan University

Collaborator

Second Affiliated Hospital, School of Medicine, Zhejiang University

Collaborator

Tangshan Worker's Hospital

Collaborator

The Affiliated Hospital of Qingdao University

Collaborator