To Evaluate the Safety and Efficacy of Intracranial Stent Assisted Endovascular Treatment of Intracranial Aneurysms

June 26, 2024 updated by: Shanghai Wallaby Medical Technologies Co.,Inc.

Prospective, Multicenter, Single-arm Clinical Trial to Evaluate the Safety and Efficacy of pEGASUS Stent System for Assisted Endovascular Treatment of Intracranial Aneurysms

The purpose of this study is to assess safety and effectiveness of the pEGASUS stent system.

Study Overview

Status

Status

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

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.

Detailed Description

Title: A prospective, multicenter, single-arm clinical trial to evaluate the safety and efficacy of pEGASUS stent system for assisted endovascular treatment of intracranial aneurysms Device: pEGASUS stent system Design: Prospective, Multicenter, Single Arm Clinical Study. Purpose: To assess safety and effectiveness of the pEGASUS stent system. Study duration: 31 months. Sample Size: 130 patients. Number of sites: ≤10. Follow-up time: 12 months.

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 (Estimated)

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.
130

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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Shanghai
      • Shanghai, Shanghai, China, 222018
        • Recruiting
        • Changhai Hospital
        • Contact:
          • Jianmin Liu

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Aged from 18 to 80 years, male or female;
  • Patients diagnosed as wide-neck intracranial aneurysms by brain CTA/MRA/DSA (neck width≥4mm or bodyor a dome-to-neck ratio<2);
  • Parent vessel with a diameter of ≥2.5mm and ≤4.5mm;
  • Patients target aneurysm is planned to be embolized using intracranial stent assisted with coiling;
  • The mRS Score of the patients was 0-2;
  • Patients understand the purpose of the study, accept the follow-up period, and agree to comply with all requirements, agree to participate in the clinical trial and voluntarily sign the informed consent.

Exclusion Criteria:

  • Patients who have contraindications to antiplatelet and/or anticoagulant therapy or do not start antiplatelet therapy in time before treatment.
  • Patients with anatomical structure is not suitable for endovascular treatment due to severe vascular tortuosity or stenosis shown by angiography.
  • Known to be allergic to Nitinol platinum alloy and angiographic agents.
  • Conditions that in the opinion of the investigators would prevent patients from completing the study, such as the expected survival period of active tumor less than 1-year, high-risk group of cerebral thrombosis, heart failure and atrial fibrillation.
  • Patients combined moyamoya disease, intracranial tumor, intracranial arteriovenous malformation, intracranial arteriovenous fistula and intracranial hematoma.
  • The target aneurysm has previously received intravascular embolization or stent implantation treatment;
  • Multiple aneurysms or complex aneurysms;
  • Patients with acute ruptured aneurysm;
  • Serious infection is not controlled and is not suitable for operation;
  • Patients who underwent major surgery or interventional therapy (such as brain, cardiac, chest, abdominal or peripheral vascular) within 30 days before surgery;
  • Obvious abnormal coagulation function or bleeding tendency;
  • Combined with severe renal insufficiency, creatinine greater than or equal to 200umol/L; Patients with severe liver diseases (such as acute and chronic hepatitis, cirrhosis), or ALT more than 3 times the upper normal limit;
  • Pregnancy, lactation, or women of childbearing age who plan to be pregnant during the study period;
  • Participation in any other clinical trial within 30 days prior to signing informed consent;
  • Other conditions considered by the investigator to be inappropriate for enrollment.

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.
Experimental: Test group
Patients can be included in the study if they meet all of the inclusion and none of the exclusion criteria and have provided written informed consent, intent to use pEGASUS stent system assisted to treat intracranial aneurysm.
Device: pEGASUS Stent System
Endovascular intervention with p64/p48 MW HPC pEGASUS Stent System was performed in patients diagnosed with intracranial aneurysms

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
Aneurysm Occlusion of the Treated Target Lesion on 6 Month Angiography
Time Frame: 6 months
Complete aneurysm occlusion (100% occlusion - Raymond Class 1) of the treated target lesion on 6 month angiography, in the absence of retreatment, or parent artery stenosis (> 50%) at the target location.
6 months
Rate of major ipsilateral stroke or neurological death
Time Frame: 12 months
Any major ipsilateral stroke or neurological death
12 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Rate of good clinical prognosis
Time Frame: 3 months, 6 months, 12 months
Good clinical prognosis means mRS 0~2
3 months, 6 months, 12 months
Death, stroke, and thrombotic events
Time Frame: to 12 months
Record the number of death, stroke and thrombotic events throughout the clinical trial period.
to 12 months
Technical success rate
Time Frame: Within 24 hours after surgery
Technical success is defined as the successful placement of pEGASUS stent system.
Within 24 hours after surgery
Rate of successful occlusion
Time Frame: Within 24 hours after surgery, 6 months, 12 months
Aneurysm successful occlusion is defined as Raymond Grade I/II.
Within 24 hours after surgery, 6 months, 12 months
Rate of complete occlusion
Time Frame: Within 24 hours after surgery, 6 months, 12 months
Aneurysm complete occlusion is defined as Raymond Grade I.
Within 24 hours after surgery, 6 months, 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.
Shanghai Wallaby Medical Technologies Co.,Inc.

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Phenox GmbH
Beijing Wallaby Medical Technologies Co.,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: Jianmin Liu, Changhai Hospital

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.
December 29, 2023

Primary Completion (Estimated)

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.
February 20, 2026

Study Completion (Estimated)

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 20, 2026

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).
November 23, 2023

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.
November 28, 2023

First Posted (Actual)

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.
December 6, 2023

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.
June 27, 2024

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.
June 26, 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.
November 1, 2023

More Information

Terms related to this study

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.
  • TP-1319

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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.

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