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N/A N=108 Treatment

EverFlex Post Approval Study

Peripheral Arterial Disease · Lower Extremity Arterial Disease

Enrolled (actual)
108
Serious AEs
61.1%
Results posted
Dec 2019
Primary outcome: Primary: Primary Outcome - Freedom From Acute Death, Freedom From 36-month Amputation, and Freedom From 36-month Clinically-driven Target Lesion Revascularization — 15; 23; 24 Participants — p=<0.001

Study Design & Population

Study type
Interventional
Phase
N/A
Interventions
EverFlex™ Self-Expanding Peripheral Stent System (Device)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
Medtronic Endovascular
Primary completion
Oct 2018

Outcome Measures

OutcomeResultp-value
PRIMARY
Primary Outcome - Freedom From Acute Death, Freedom From 36-month Amputation, and Freedom From 36-month Clinically-driven Target Lesion Revascularization
15; 23; 24 <0.001 sig
SECONDARY
Secondary Outcome - Freedom From Stent Fracture
0; 1; 3
SECONDARY
Secondary Outcome - Freedom From Acute Death, Freedom From Amputation and Freedom From Clinically-driven Target Lesion Revascularization at 1 and 2 Years
15; 23
SECONDARY
Secondary Outcome - Freedom From 36-month Amputation
0; 1; 1
SECONDARY
Secondary Outcome - Freedom From 36-month Clinically-driven Target Lesion Revascularization
15; 22; 23
SECONDARY
Secondary Outcome - Number of Participants Free From Acute Death
108
SECONDARY
Secondary Outcome - Number of Successfully Implanted Stents
118
SECONDARY
Secondary Outcome - Number of Participants With Improvement in Rutherford Clinical Category at 1 Year
88
SECONDARY
Secondary Outcome - Number of Participants With Improvement in Ankle-Brachial Index at 1 Year
62
SECONDARY
Secondary Outcome - Change in Score of Walking Impairment Questionnaire at 1 Year
30.42; 28.08; 21.77; 21.83
SECONDARY
Secondary Outcome - Number of Adverse Events
206

Summary

This post-approval study is designed to confirm the long-term safety and effectiveness of the EverFlex™ Self-Expanding Stent System for the treatment of atherosclerotic superficial femoral artery (SFA) and proximal popliteal arteries.

Eligibility Criteria

General Inclusion Criteria

  • Has stenotic, restenotic (from PTA or adjunct therapy, not including stents or stent grafts), or occluded lesion(s) located in the native superficial femoral artery or superficial femoral and proximal popliteal arteries suitable for primary stenting.
  • Has a Rutherford Clinical Category Score of 2, 3 or 4.
  • Is willing to comply with all follow-up evaluations at the specified times.
  • Is ≥ to18 years old.
  • Provides written informed consent prior to enrollment in the study.

Angiographic Inclusion Criteria Subjects must meet all of the following angiographic inclusion criteria. The implanting physician bases all angiographic inclusion criteria on visual determination at the time of the procedure.

  • Target lesion(s) located within the native SFA/proximal popliteal: distal point at least 3 cm above the cortical margin of the femur and proximal point at least 1 cm below the origin of the profunda femoralis measured by straight posteroanterior (PA) view for distal lesions, ipsilateral oblique view for proximal lesions.
  • Evidence of ≥ 50% stenosis or restenosis (from PTA or adjunct therapy, not including stents or stent grafts), or occlusion of target lesion(s).
  • Target lesion(s) total length is ≥ 4 cm and ≤ 18 cm.
  • Target vessel diameter is ≥ 4.5 mm and ≤ 7.5 mm.
  • There is evidence of at least one runoff vessel to the ankle/foot of the limb to be treated that does not also require treatment for significant (> 50% stenosis or occlusion) stenosis during the index procedure.

General Exclusion Criteria

  • Has undergone previous implantation of stent(s) or stent graft(s) in the target vessel.
  • Has a contraindication or known allergy to antiplatelet therapy, anticoagulants, thrombolytic drugs, contrast media or any other drug used in study according to the protocol.
  • Has known hypersensitivity to nickel-titanium.
  • Has bleeding diathesis, coagulopathy, known hypercoagulable condition, or refuses blood transfusion.
  • Female currently breastfeeding, pregnant, or of childbearing potential not using adequate contraceptive measures.
  • Has life expectancy of less than 1 year.
  • Has planned use of thrombectomy, atherectomy, brachytherapy or laser devices during procedure.
  • Has previously been enrolled in the DURABILITY PAS study.
  • Has received endovascular treatment of target lesion by percutaneous transluminal angioplasty or any other means of previous endovascular treatment (e.g. cutting balloon, scoring balloon, cryoplasty, thrombectomy, atherectomy, brachytherapy or laser devices) within six months of the index procedure.
  • Has any planned surgical intervention or endovascular procedure 14 days before or 30 days after the index procedure.
  • Is currently participating in an investigational drug or another device study that has not completed the primary endpoint or that clinically interferes with the current study endpoints.
  • Has any co-morbid condition that precludes endovascular treatment.

Angiographic Exclusion Criteria The subject must not meet any of the following angiographic exclusion criteria. The implanting physician bases all angiographic exclusion criteria on visual determination at the time of the procedure.

  • Exchangeable guidewire cannot cross the target lesion and/or re-enter true vessel lumen distal to lesion(s).
  • Presence of significant (> 50% stenosis or occlusion) ipsilateral common femoral stenosis.
  • Aneurysmal target vessel.
  • Presence of an acute intraluminal thrombus at the proposed lesion site.
  • Perforation, dissection or other injury of the access or target vessel requiring additional stenting or surgical intervention prior to start of PTA procedure.
  • Focal popliteal disease in the absence of femoral disease.
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT01680835). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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