DURABILITY+ : a Prospective, Multi-center, Controlled Study With the Everflex+ Stent in SFA Lesions (DURABILITY+)
Primary Purpose
Peripheral Arterial Disease
Status
Completed
Phase
Phase 4
Locations
Belgium
Study Type
Interventional
Intervention
stent placement
Sponsored by
About this trial
This is an interventional treatment trial for Peripheral Arterial Disease
Eligibility Criteria
General Inclusion Criteria:
- De novo, restenotic or reoccluded (from PTA or adjunct therapy, not including stents or stent grafts) lesion located in the superficial femoral artery (without popliteal involvement) with proximal point at least one centimeter below the origin of the profunda femoralis and suitable for stenting
- Patient presenting with a score from 2 to 4 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 enrollment in the study
Angiographic Inclusion Criteria
- The length of the target lesion is minimally 40 mm and maximally 180 mm, to be covered with one stent
- The target lesion has angiographic evidence of stenosis or restenosis > 50% or occlusion which can be passed with standard guidewire manipulation
- Target vessel diameter visually estimated is >3.5 mm and <7.5 mm
- Prior to enrollment, the guidewire has crossed target lesion
- There is angiographic evidence of at least one-vessel-runoff to the foot, irrespective of whether or not outflow was re-established by means of previous endovascular intervention
- Patient is eligible for treatment with the Protégé Everflex+ stent system
General Exclusion Criteria:
- Presence of another stent or stent graft in the target vessel that was placed during a previous procedure
- Previous by-pass surgery in the same limb requiring access to the target lesion
- Patients for whom antiplatelet therapy, anticoagulants or thrombolytic drugs are contraindicated or no alternative is available
- Patients with known hypersensitivity to nickel-titanium
- Patients with uncorrected bleeding disorders
- Female patient with child bearing potential not using adequate contraceptives or currently breastfeeding
- Life expectancy of less than twelve months
- Use of thrombectomy, artherectomy, cryoplasty, cutting balloon, drug-eluting balloon, embolic protection or laser devices during 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.
Angiographic Exclusion Criteria
- Presence of an aortic thrombosis or significant common femoral ipsilateral stenosis
- Patients who exhibit persistent acute intraluminal thrombus of the proposed target lesion site
- Perforation, dissection or other injury of the access site or target vessel requiring additional stenting or surgical intervention prior to start of the index procedure
- Perforation at the angioplasty site evidenced by extravasation of contrast medium
- Aneurysm located at the level of the SFA and/or proximal popliteal
Sites / Locations
- Imelda Hospital
- University Hospital Antwerp
- A.Z. Sint-Blasius
Arms of the Study
Arm 1
Arm Type
Experimental
Arm Label
Protégé EverFlex+
Arm Description
Stenting with Protégé EverFlex+
Outcomes
Primary Outcome Measures
Major Adverse Event rate
The primary safety endpoint of the study is the Major Adverse Event (MAE) rate at 30 days. MAE is defined as: clinically-driven target lesion revascularization, amputation of treated limb or all-cause mortality through 30 days post procedure.
Primary stent patency
The primary effectiveness endpoint of the study is primary stent patency at 12 months. Primary patency is defined as absence of a hemodynamically significant stenosis on duplex ultrasound (systolic velocity ratio no greater than 2.4) at the target lesion and without TLR within 12 months.
Secondary Outcome Measures
Technical success
Technical success, defined as the ability to cross and stent the lesion, after predilation, and with or without additional post-dilation, and achieve residual angiographic stenosis no greater than 30%
Primary stent patency at 1 and 6 months
Primary patency at 1, 6 months. Primary patency is defined as absence of a hemodynamically significant stenosis on duplex ultrasound (systolic velocity ratio no greater than 2.4) at the target lesion and without TLR within the time of procedure and the given follow-up.
Primary assisted patency
Primary assisted patency rate at 1, 6, 12-month follow-up. Defined as flow through the treated lesion maintained by repeat percutaneous intervention completed prior to complete vessel closure.
Secondary patency
Secondary patency rate at 1, 6, 12-month follow-up. Defined as flow through the treated lesion maintained by repeat percutaneous intervention after occlusion of the target lesion.
Target lesion revascularization
Target lesion revascularization (TLR) is defined as a repeat intervention, within the study follow-up period of 12 months, to maintain or re-establish patency within the region of the treated arterial vessel plus 5 mm proximal and distal to the treated lesion edge.
limb-salvage
Limb-salvage rate at all follow-up visits for the subgroup of patients with critical limb ischemia (Rutherford category 4), defined as absence of major amputation. Major amputation is defined as amputation at or above the ankle, as opposed to minor amputation, being an amputation at or below metatarsal level, preserving functionality of the foot)
Clinical success
Clinical success at follow-up, defined as an improvement of Rutherford classification at 1 day and 1, 6, 12-month follow-up of one class or more as compared to the pre-procedure Rutherford classification
Serious adverse events
Serious adverse events defined as any clinical event that is fatal, life-threatening, or judged to be severe by the investigator; resulted in persistent or significant disability; necessitated surgical or percutaneous intervention; or required prolonged hospitalization.
Full Information
NCT ID
NCT01412463
First Posted
August 8, 2011
Last Updated
September 30, 2013
Sponsor
Flanders Medical Research Program
Collaborators
Medtronic Neurovascular Clinical Affairs
1. Study Identification
Unique Protocol Identification Number
NCT01412463
Brief Title
DURABILITY+ : a Prospective, Multi-center, Controlled Study With the Everflex+ Stent in SFA Lesions
Acronym
DURABILITY+
Official Title
DURABILITY+ : a Prospective, Multi-center, Controlled Study Measuring the Durability in Lesions of the Superficial Femoral Artery of the Protégé Everflex+ Stent
Study Type
Interventional
2. Study Status
Record Verification Date
September 2013
Overall Recruitment Status
Completed
Study Start Date
May 2011 (undefined)
Primary Completion Date
January 2013 (Actual)
Study Completion Date
January 2013 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Flanders Medical Research Program
Collaborators
Medtronic Neurovascular Clinical Affairs
4. Oversight
Data Monitoring Committee
Yes
5. Study Description
Brief Summary
The objective of this study is to evaluate the immediate and long-term (up to 12 months) safety and effectiveness of primary stenting with the Protégé Everflex+ stent system for the treatment of superficial femoral artery (SFA) lesions (without involvement of the popliteal artery) between 40 mm and 180 mm in length.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Peripheral Arterial Disease
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
60 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Protégé EverFlex+
Arm Type
Experimental
Arm Description
Stenting with Protégé EverFlex+
Intervention Type
Device
Intervention Name(s)
stent placement
Other Intervention Name(s)
Protégé EverFlex+
Intervention Description
pre-dilation of the study lesion is mandatory
stent placement with 1 Protégé Everflex+ stent
only 1 stent is allowed within the study protocol
post-dilation may be performed but is not mandatory
Primary Outcome Measure Information:
Title
Major Adverse Event rate
Description
The primary safety endpoint of the study is the Major Adverse Event (MAE) rate at 30 days. MAE is defined as: clinically-driven target lesion revascularization, amputation of treated limb or all-cause mortality through 30 days post procedure.
Time Frame
30 days post-procedure
Title
Primary stent patency
Description
The primary effectiveness endpoint of the study is primary stent patency at 12 months. Primary patency is defined as absence of a hemodynamically significant stenosis on duplex ultrasound (systolic velocity ratio no greater than 2.4) at the target lesion and without TLR within 12 months.
Time Frame
12 months post-procedure
Secondary Outcome Measure Information:
Title
Technical success
Description
Technical success, defined as the ability to cross and stent the lesion, after predilation, and with or without additional post-dilation, and achieve residual angiographic stenosis no greater than 30%
Time Frame
1 day post-procedure
Title
Primary stent patency at 1 and 6 months
Description
Primary patency at 1, 6 months. Primary patency is defined as absence of a hemodynamically significant stenosis on duplex ultrasound (systolic velocity ratio no greater than 2.4) at the target lesion and without TLR within the time of procedure and the given follow-up.
Time Frame
1 and 6 months post-procedure
Title
Primary assisted patency
Description
Primary assisted patency rate at 1, 6, 12-month follow-up. Defined as flow through the treated lesion maintained by repeat percutaneous intervention completed prior to complete vessel closure.
Time Frame
1, 6 and 12 months post-procedure
Title
Secondary patency
Description
Secondary patency rate at 1, 6, 12-month follow-up. Defined as flow through the treated lesion maintained by repeat percutaneous intervention after occlusion of the target lesion.
Time Frame
1, 6 and 12 months post-procedure
Title
Target lesion revascularization
Description
Target lesion revascularization (TLR) is defined as a repeat intervention, within the study follow-up period of 12 months, to maintain or re-establish patency within the region of the treated arterial vessel plus 5 mm proximal and distal to the treated lesion edge.
Time Frame
12 months post-procedure
Title
limb-salvage
Description
Limb-salvage rate at all follow-up visits for the subgroup of patients with critical limb ischemia (Rutherford category 4), defined as absence of major amputation. Major amputation is defined as amputation at or above the ankle, as opposed to minor amputation, being an amputation at or below metatarsal level, preserving functionality of the foot)
Time Frame
12-months post-procedure
Title
Clinical success
Description
Clinical success at follow-up, defined as an improvement of Rutherford classification at 1 day and 1, 6, 12-month follow-up of one class or more as compared to the pre-procedure Rutherford classification
Time Frame
1, 6 and 12 months post-procedure
Title
Serious adverse events
Description
Serious adverse events defined as any clinical event that is fatal, life-threatening, or judged to be severe by the investigator; resulted in persistent or significant disability; necessitated surgical or percutaneous intervention; or required prolonged hospitalization.
Time Frame
12-months post-procedure
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
General Inclusion Criteria:
De novo, restenotic or reoccluded (from PTA or adjunct therapy, not including stents or stent grafts) lesion located in the superficial femoral artery (without popliteal involvement) with proximal point at least one centimeter below the origin of the profunda femoralis and suitable for stenting
Patient presenting with a score from 2 to 4 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 enrollment in the study
Angiographic Inclusion Criteria
The length of the target lesion is minimally 40 mm and maximally 180 mm, to be covered with one stent
The target lesion has angiographic evidence of stenosis or restenosis > 50% or occlusion which can be passed with standard guidewire manipulation
Target vessel diameter visually estimated is >3.5 mm and <7.5 mm
Prior to enrollment, the guidewire has crossed target lesion
There is angiographic evidence of at least one-vessel-runoff to the foot, irrespective of whether or not outflow was re-established by means of previous endovascular intervention
Patient is eligible for treatment with the Protégé Everflex+ stent system
General Exclusion Criteria:
Presence of another stent or stent graft in the target vessel that was placed during a previous procedure
Previous by-pass surgery in the same limb requiring access to the target lesion
Patients for whom antiplatelet therapy, anticoagulants or thrombolytic drugs are contraindicated or no alternative is available
Patients with known hypersensitivity to nickel-titanium
Patients with uncorrected bleeding disorders
Female patient with child bearing potential not using adequate contraceptives or currently breastfeeding
Life expectancy of less than twelve months
Use of thrombectomy, artherectomy, cryoplasty, cutting balloon, drug-eluting balloon, embolic protection or laser devices during 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.
Angiographic Exclusion Criteria
Presence of an aortic thrombosis or significant common femoral ipsilateral stenosis
Patients who exhibit persistent acute intraluminal thrombus of the proposed target lesion site
Perforation, dissection or other injury of the access site or target vessel requiring additional stenting or surgical intervention prior to start of the index procedure
Perforation at the angioplasty site evidenced by extravasation of contrast medium
Aneurysm located at the level of the SFA and/or proximal popliteal
Facility Information:
Facility Name
Imelda Hospital
City
Bonheiden
State/Province
Antwerp
ZIP/Postal Code
2820
Country
Belgium
Facility Name
University Hospital Antwerp
City
Edegem
State/Province
Antwerp
ZIP/Postal Code
2650
Country
Belgium
Facility Name
A.Z. Sint-Blasius
City
Dendermonde
State/Province
East-Flanders
ZIP/Postal Code
9200
Country
Belgium
12. IPD Sharing Statement
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DURABILITY+ : a Prospective, Multi-center, Controlled Study With the Everflex+ Stent in SFA Lesions
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