Citadel Embolization Device Study

NCT ID: NCT04057352

Last Updated: 2025-09-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-07-18

Study Completion Date

2026-11-15

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to gather safety and effectiveness data on Stryker Neurovascular's Next Generation Target Detachable Coil (hereafter referred to as the Citadel Embolization Device), when used with Target Detachable Coils, in the treatment of wide-neck intracranial aneurysms.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

In this study, use of the Citadel Embolization Device will be limited to a population of patients with unruptured or ruptured wide-neck aneurysms who meet all study eligibility criteria. The Citadel Embolization Device is intended to endovascularly obstruct or occlude blood flow in intracranial aneurysms.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Unruptured Wide-neck Aneurysms

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Citadel Embolization Device

The Citadel Embolization Device is intended to endovascularly obstruct or occlude blood flow in intracranial aneurysms.

Group Type OTHER

Citadel Embolization Device

Intervention Type DEVICE

The Citadel Embolization Device is intended to endovascularly obstruct or occlude blood flow in intracranial aneurysms.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Citadel Embolization Device

The Citadel Embolization Device is intended to endovascularly obstruct or occlude blood flow in intracranial aneurysms.

Intervention Type DEVICE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

1. Age is ≥18 and ≤80 years
2. Has a single, unruptured or ruptured target intracranial aneurysm that is suitable for endovascular treatment. Definition: For the purposes of this study, a ruptured intracranial aneurysm is defined as one with CT/MRI/LP evidence of subarachnoid hemorrhage attributed to the index aneurysm within the last 60 days.
3. Aneurysm morphology is saccular
4. Aneurysm size is between 6-12 mm
5. Has a wide-neck, saccular aneurysm, either bifurcation or sidewall, with a dome to neck ratio \<2 or neck ≥4 mm
6. If the target intracranial aneurysm is classified as ruptured, patient must be neurologically stable with a Hunt \& Hess Score of 1 or 2.
7. Must be willing to comply with protocol required procedures and follow up
8. Subject or LAR must be willing to sign and date an IRB approved written informed consent prior to initiation of any screening or study procedures

Exclusion Criteria

1. Target aneurysm has been previously treated
2. Target aneurysm is in any extradural location, including the extradural cavernous segment
3. Has vessel characteristics, tortuosity or morphology or unfavorable aneurysm morphology (e.g., determined from baseline or preprocedure imaging, or which may be evidenced by excessive resistance felt during the procedure) that would preclude safe endovascular access to the target aneurysm necessary for treatment with the study device
4. Has significant intracranial atherosclerotic disease or stenosis determined from baseline or pre-procedure imaging
5. If the target intracranial aneurysm is classified as ruptured, patient is neurologically unstable or has a Hunt \& Hess Score of ≥ 3
6. Has a history of intracranial vasospasm not responsive to medical therapy
7. Has undergone coiling or stenting of a non-target intracranial aneurysm within 30 days prior to study treatment or has a non-target intracranial aneurysm that is expected to be treated within 12 months following the treatment of the target aneurysm
8. Treatment with flow diverting stent implant is anticipated
9. A planned, staged procedure is anticipated
10. Has Moya-Moya disease, arteriovenous malformation(s), arteriovenous fistula(e), intracranial tumor(s), intracranial hematoma(s), any other intracranial vascular malformation, or any previous major intracranial surgery
11. Has had a recent (within 90 days) ischemic stroke, TIA, or intracranial hemorrhage
12. Has a baseline mRS score ≥2
13. Has a known coagulopathy or is on chronic anticoagulant therapy
14. Is pregnant or intends to become pregnant during the study or is breastfeeding
15. Is concurrently involved in another study that could affect outcomes of IA treatment
16. Has evidence of active cancer, terminal illness, high risk of embolic stroke, unstable atrial fibrillation, significant co-morbidities, major surgery ≤ 30 days pre-procedure, psychiatric disorders, substance abuse, or a life expectancy of less than 5 years
17. Has a contraindication to angiography, radiographic contrast agents, or any medications that are typically used during the procedure, and any other contraindications listed in the Investigational DFU
18. Has a confirmed allergy to platinum, tungsten, nickel (e.g. nitinol), or other elements used in the manufacturing of the investigational device
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Stryker Neurovascular

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Ansaar Rai, MD

Role: PRINCIPAL_INVESTIGATOR

West Virginia University

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Carondelet St. Joseph Hospital

Tucson, Arizona, United States

Site Status

Cedars-Sinai Medical Center

Los Angeles, California, United States

Site Status

California Pacific Medical Center

San Francisco, California, United States

Site Status

UCSF Medical Center

San Francisco, California, United States

Site Status

John Muir Health

Walnut Creek, California, United States

Site Status

RIA Neurovascular

Englewood, Colorado, United States

Site Status

University of Florida

Gainesville, Florida, United States

Site Status

Baptist Health

Jacksonville, Florida, United States

Site Status

University of Miami/Jackson Memorial

Miami, Florida, United States

Site Status

Tampa General Hospital

Tampa, Florida, United States

Site Status

Northwestern University

Chicago, Illinois, United States

Site Status

Indiana Methodist

Indianapolis, Indiana, United States

Site Status

Kansas University Medical Center

Kansas City, Kansas, United States

Site Status

Baptist Health

Lexington, Kentucky, United States

Site Status

University of Kentucky

Lexington, Kentucky, United States

Site Status

UMass Memorial Health

Worcester, Massachusetts, United States

Site Status

McLaren Health Center

Flint, Michigan, United States

Site Status

Spectrum Health

Grand Rapids, Michigan, United States

Site Status

Washington University

St Louis, Missouri, United States

Site Status

Weill Cornell

New York, New York, United States

Site Status

Montefiore Medical Center

New York, New York, United States

Site Status

Cleveland Clinic

Cleveland, Ohio, United States

Site Status

University of Pennsylvania Hospital

Philadelphia, Pennsylvania, United States

Site Status

Thomas Jefferson University

Philadelphia, Pennsylvania, United States

Site Status

University of Washington

Seattle, Washington, United States

Site Status

West Virginia University Hospital

Morgantown, West Virginia, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

CDM10001448

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

ClearWay™ RX Registry Trial
NCT00804024 COMPLETED