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DURABILITY-200: EverFlex 200mm Long Nitinol Stents in TASC C&D Femoropopliteal Lesions

Primary Purpose

Peripheral Vascular Disease, Intermittent Claudication, Critical Limb Ischemia

Status
Completed
Phase
Phase 4
Locations
Belgium
Study Type
Interventional
Intervention
Everflex 200
Sponsored by
Flanders Medical Research Program
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Peripheral Vascular Disease focused on measuring Peripheral Vascular Disease, Intermittent claudication, Critical Limb Ischemia, TASC

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

GENERAL

  • De novo, restenotic or reoccluded lesion located in the femoropopliteal arteries suitable for stenting
  • Patient presenting a score from 2 to 5 following Rutherford classification
  • Patient is willing to comply with specified follow-up evaluations at the specified times
  • Patient is >18 years old
  • Patient (or their legal representative) understands the nature of the procedure and provides written informed consent, prior to enrolment in the study
  • Prior to enrollment, the guidewire has crossed target lesion
  • Patient is eligible for treatment with the self-expanding nitinol EverFlex (ev3) stent

ANGIOGRAPHIC

  • The target lesion is located within the native femoropopliteal artery until maximally 3 cm proximally of the knee joint.
  • The target lesion has angiographic evidence of stenosis or restenosis > 50% or occlusion which can be passed with standard guidewire manipulation
  • The target lesion, visually estimated, has a minimal length of 15 cm and can be categorized as either a type C or D lesions according the TASC II guidelines
  • Target vessel diameter visually estimated is >4mm and <6.5 mm
  • There is angiographic evidence of at least one-vessel-runoff to the foot

Exclusion Criteria:

  • Presence of another stent in the target vessel that was placed during a previous procedure
  • Presence of an aortic thrombosis or significant common femoral ipsilateral stenosis
  • Previous by-pass surgery in the same limb
  • Patients for whom antiplatelet therapy, anticoagulants or thrombolytic drugs are contraindicated
  • Patients who exhibit persistent acute intraluminal thrombus of the proposed lesion site
  • Perforation at the angioplasty site evidenced by extravasation of contrast medium
  • Patients with known hypersensitivity to nickel-titanium
  • Patients with uncorrected bleeding disorders
  • Aneurysm located at the level of the SFA
  • Female patient with child bearing potential not taking adequate contraceptives or currently breastfeeding
  • Life expectancy of less than twelve months
  • Ipsilateral iliac treatment before the target lesion procedure with a residual stenosis > 30% or ipsilateral iliac treatment conducted after the target lesion procedure
  • Use of thrombectomy, artherectomy or laser devices during procedure
  • Any planned surgical intervention/procedure within 30 days of the study procedure
  • Any patient considered to be hemodynamically unstable at onset of procedure
  • Patient is currently participating in another investigational drug or device study that has not completed the entire follow up period.

Sites / Locations

  • Imelda Hospital
  • AZ Sint-Blasius

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Everflex 200

Arm Description

study group treated with at least one 200 mm Everflex stent

Outcomes

Primary Outcome Measures

Primary patency defined as a target lesion without a hemodynamically significant stenosis on duplex ultrasound (systolic velocity ratio no greater than 2.4) and without TLR

Secondary Outcome Measures

Technical success, defined as the ability to cross and dilate the lesion to achieve residual angiographic stenosis no greater than 30% and residual stenosis less than 50% by duplex imaging.
Primary patency defined as a target lesion without a hemodynamically significant stenosis on duplex ultrasound (systolic velocity ratio no greater than 2.4) and without TLR
Clinical success at follow-up defined as an improvement of Rutherford classification of one class or more as compared to the pre-procedure
Stent fracture rate determined on x-ray (Mild - single strut fracture; Moderate - fracture of more than one strut but without complete separation; Severe - complete separation)
Serious adverse events

Full Information

First Posted
March 12, 2008
Last Updated
November 30, 2010
Sponsor
Flanders Medical Research Program
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1. Study Identification

Unique Protocol Identification Number
NCT00637741
Brief Title
DURABILITY-200: EverFlex 200mm Long Nitinol Stents in TASC C&D Femoropopliteal Lesions
Official Title
Physician Initiated Trial Investigating the Efficacy of the Implant of EverFlex 200mm Long Nitinol Stents in TASC C&D Femoropopliteal Lesions
Study Type
Interventional

2. Study Status

Record Verification Date
November 2010
Overall Recruitment Status
Completed
Study Start Date
March 2008 (undefined)
Primary Completion Date
September 2009 (Actual)
Study Completion Date
November 2010 (Actual)

3. Sponsor/Collaborators

Name of the Sponsor
Flanders Medical Research Program

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
The objective of this clinical investigation is to evaluate the long-term (up to 12 months) outcome of the 200 mm long self-expanding nitinol EverFlex (ev3) stent in long femoropopliteal lesions (TASC C & D) Is is the first time that the use of 200 mm long stents will be evaluated in these lesions. It is expected that the outcome of the treatment with this type of long stents will be better as the treatment of identical lesions lengths with multiple shorter stents.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Peripheral Vascular Disease, Intermittent Claudication, Critical Limb Ischemia
Keywords
Peripheral Vascular Disease, Intermittent claudication, Critical Limb Ischemia, TASC

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
100 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Everflex 200
Arm Type
Experimental
Arm Description
study group treated with at least one 200 mm Everflex stent
Intervention Type
Device
Intervention Name(s)
Everflex 200
Primary Outcome Measure Information:
Title
Primary patency defined as a target lesion without a hemodynamically significant stenosis on duplex ultrasound (systolic velocity ratio no greater than 2.4) and without TLR
Time Frame
12 months
Secondary Outcome Measure Information:
Title
Technical success, defined as the ability to cross and dilate the lesion to achieve residual angiographic stenosis no greater than 30% and residual stenosis less than 50% by duplex imaging.
Time Frame
procedure
Title
Primary patency defined as a target lesion without a hemodynamically significant stenosis on duplex ultrasound (systolic velocity ratio no greater than 2.4) and without TLR
Time Frame
6 months
Title
Clinical success at follow-up defined as an improvement of Rutherford classification of one class or more as compared to the pre-procedure
Time Frame
6 & 12 months
Title
Stent fracture rate determined on x-ray (Mild - single strut fracture; Moderate - fracture of more than one strut but without complete separation; Severe - complete separation)
Time Frame
12 months
Title
Serious adverse events
Time Frame
12 months

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: GENERAL De novo, restenotic or reoccluded lesion located in the femoropopliteal arteries suitable for stenting Patient presenting a score from 2 to 5 following Rutherford classification Patient is willing to comply with specified follow-up evaluations at the specified times Patient is >18 years old Patient (or their legal representative) understands the nature of the procedure and provides written informed consent, prior to enrolment in the study Prior to enrollment, the guidewire has crossed target lesion Patient is eligible for treatment with the self-expanding nitinol EverFlex (ev3) stent ANGIOGRAPHIC The target lesion is located within the native femoropopliteal artery until maximally 3 cm proximally of the knee joint. The target lesion has angiographic evidence of stenosis or restenosis > 50% or occlusion which can be passed with standard guidewire manipulation The target lesion, visually estimated, has a minimal length of 15 cm and can be categorized as either a type C or D lesions according the TASC II guidelines Target vessel diameter visually estimated is >4mm and <6.5 mm There is angiographic evidence of at least one-vessel-runoff to the foot Exclusion Criteria: Presence of another stent in the target vessel that was placed during a previous procedure Presence of an aortic thrombosis or significant common femoral ipsilateral stenosis Previous by-pass surgery in the same limb Patients for whom antiplatelet therapy, anticoagulants or thrombolytic drugs are contraindicated Patients who exhibit persistent acute intraluminal thrombus of the proposed lesion site Perforation at the angioplasty site evidenced by extravasation of contrast medium Patients with known hypersensitivity to nickel-titanium Patients with uncorrected bleeding disorders Aneurysm located at the level of the SFA Female patient with child bearing potential not taking adequate contraceptives or currently breastfeeding Life expectancy of less than twelve months Ipsilateral iliac treatment before the target lesion procedure with a residual stenosis > 30% or ipsilateral iliac treatment conducted after the target lesion procedure Use of thrombectomy, artherectomy or laser devices during procedure Any planned surgical intervention/procedure within 30 days of the study procedure Any patient considered to be hemodynamically unstable at onset of procedure Patient is currently participating in another investigational drug or device study that has not completed the entire follow up period.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Marc Bosiers, MD
Organizational Affiliation
AZ Sint-Blasius, Dendermonde, Belgium
Official's Role
Principal Investigator
Facility Information:
Facility Name
Imelda Hospital
City
Bonheiden
ZIP/Postal Code
2820
Country
Belgium
Facility Name
AZ Sint-Blasius
City
Dendermonde
ZIP/Postal Code
9200
Country
Belgium

12. IPD Sharing Statement

Citations:
PubMed Identifier
21636239
Citation
Bosiers M, Deloose K, Callaert J, Moreels N, Keirse K, Verbist J, Peeters P. Results of the Protege EverFlex 200-mm-long nitinol stent (ev3) in TASC C and D femoropopliteal lesions. J Vasc Surg. 2011 Oct;54(4):1042-50. doi: 10.1016/j.jvs.2011.03.272. Epub 2011 Jun 2.
Results Reference
derived
Links:
URL
http://www.fmrp.be
Description
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DURABILITY-200: EverFlex 200mm Long Nitinol Stents in TASC C&D Femoropopliteal Lesions

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