NCT03731000

Brief Summary

The purpose of this study is to collect information about how the PHIL® Embolic System works in the treatment of intracranial dural arteriovenous fistulas. Data collected in this study will be used to evaluate the safety and probable benefits in treating DAVFs. The PHIL® Embolic System is a Humanitarian Use Device (HUD). The U.S. Food and Drug Administration (FDA) approved the use of the PHIL Embolic System as a HUD in June 2016.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
15

participants targeted

Target at below P25 for not_applicable

Timeline
19mo left

Started Apr 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress82%
Apr 2019Dec 2027

First Submitted

Initial submission to the registry

August 29, 2018

Completed
2 months until next milestone

First Posted

Study publicly available on registry

November 5, 2018

Completed
5 months until next milestone

Study Start

First participant enrolled

April 16, 2019

Completed
8.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2027

Last Updated

March 27, 2026

Status Verified

March 1, 2026

Enrollment Period

8.6 years

First QC Date

August 29, 2018

Last Update Submit

March 23, 2026

Conditions

Keywords

Pediatric

Outcome Measures

Primary Outcomes (2)

  • Proportion of participants with neurological death or major ipsilateral stroke

    The proportion of subjects with neurological death or major ipsilateral stroke (defined as a major stroke within the vascular distribution of the vessel targeted for treatment) within 12 months following completion of treatment, reported as one composite data variable

    12 months

  • Proportion of participants with angiographic occlusion

    Proportion of subjects with Angiographic occlusion of the pre-specified target vessel intended for treatment at procedure following completion of treatment

    up to 12 months

Secondary Outcomes (16)

  • Incidence of angiographic cure

    up to 12 months

  • Incidence of new-onset permanent morbidity

    up to 12 months

  • Incidence of new-onset Intracranial hemorrhage (ICH)

    up to 12 months

  • Number of significant technical events

    up to 12 months

  • Incidence of device-related adverse events at procedure

    Day 1 during procedure

  • +11 more secondary outcomes

Study Arms (1)

PHIL® device

EXPERIMENTAL

Using device

Device: PHIL® device

Interventions

Using PHIL® device for treatment of intracranial dural arteriovenous fistulas

PHIL® device

Eligibility Criteria

AgeUp to 21 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Subject is \<22 years of age
  • Subject and legally authorized representative are willing and capable of complying with all study protocol requirements, including specified follow-up period.
  • Subject's legally authorized representative(s) must sign and date an IRB approved written informed consent prior to initiation of any study procedure
  • Subject has an intracranial dAVF that is deemed appropriate for embolization with PHIL without significantly increased risk to collateral or adjacent territories, OR subject has been previously treated with other embolic materials for dAVF.

You may not qualify if:

  • Subject presents with an intracranial mass or is currently undergoing radiation therapy for carcinoma or sarcoma of the head or neck region
  • Subject has known allergies to DMSO (dimethyl sulfoxide), iodine or heparin.
  • Subject with a history of life threatening allergy to contrast media (unless treatment for allergy is tolerated).
  • Female subject is currently pregnant.
  • Subject has an acute or chronic life-threatening illness other than the neurological disease to be treated in this study including but not limited to any malignancy or debilitating autoimmune disease
  • Subject has existing severe or advanced comorbid conditions which significantly increase general anesthesia and/ or surgical risk
  • Evidence of active infection at the time of treatment.
  • Subject has a history of bleeding diathesis or coagulopathy, international normalized ratio (INR) greater than 1.5, or will refuse blood transfusions.
  • Subject weighs ≤ 2.5kg Angiographic
  • Subject has severe calcification or vascular tortuosity that may preclude the safe introduction of the sheath, guiding catheter, or access to the lesion with the microcatheter.
  • Contra-indication to DSA, CT scan or MRI/ MRA
  • History of intracranial vasospasm not responsive to medical therapy
  • Extra-cranial stenosis or parent vessel stenosis \> 50% proximal to the target lesion to be treated.
  • Subject has a propensity to contrast induced renal injury or a potential to nephrogenic systemic fibrosis

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mount Sinai Hospital

New York, New York, 10029, United States

RECRUITING

MeSH Terms

Conditions

Arteriovenous FistulaIntracranial Arteriovenous Malformations

Condition Hierarchy (Ancestors)

Arteriovenous MalformationsVascular MalformationsCardiovascular AbnormalitiesCardiovascular DiseasesVascular FistulaVascular DiseasesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesFistulaPathological Conditions, AnatomicalPathological Conditions, Signs and SymptomsCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCentral Nervous System Vascular MalformationsNervous System MalformationsIntracranial Arterial Diseases

Study Officials

  • Alejandro Berenstein, MD

    Icahn School of Medicine at Mount Sinai

    PRINCIPAL INVESTIGATOR
  • Tomoyoshi Shigematsu, MD, PhD

    Icahn School of Medicine at Mount Sinai

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Single Group
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 29, 2018

First Posted

November 5, 2018

Study Start

April 16, 2019

Primary Completion (Estimated)

December 1, 2027

Study Completion (Estimated)

December 1, 2027

Last Updated

March 27, 2026

Record last verified: 2026-03

Locations