To demonstrate that the BioMimics 3D Stent System meets the performance goals defined by VIVA Physicians, Inc. for the safety and effectiveness of Nitinol stents used in the treatment of symptomatic disease of the femoropopliteal artery. It is a prospective, single-arm, multicenter clinical trial.
The BioMimics 3D stent is intended to improve luminal diameter in the treatment of symptomatic de-novo, obstructive or occlusive lesions in native femoropopliteal arteries with reference vessel diameters ranging from 4.0 - 6.0 mm. Subjects with symptomatic atherosclerotic disease of the femoropopliteal artery who comply with all study eligibility criteria may be considered for enrollment.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
271
Femoropopliteal stenting
Primary Safety Endpoint (Freedom From a Composite of Major Adverse Events (MAE)
Freedom from a composite of major adverse events (MAE) comprising death, any major amputation performed on the target limb or clinically-driven target lesion revascularization (TLR) through 30 days.
Time frame: 30 days
Primary Effectiveness Endpoint (Primary Stent Patency Rate)
The primary effectiveness endpoint of the MIMICS-2 Study was defined as the primary stent patency rate at 12 months. Patency was defined as no significant reduction in luminal diameter (\< 50% diameter stenosis) since the index procedure. Loss of patency was determined by an independent core laboratory when the peak systolic velocity ratio (PSVR) exceeds 2.0, or where angiography revealed \> 50% diameter stenosis, or where the subject had a CDTLR.
Time frame: 12 months
Secondary Safety (Overall MAE Rate at 30 Days)
Contribution of individual MAE rates for death, major amputation performed on the target limb and clinically-driven target lesion revascularization to the overall MAE rate at 30 days.
Time frame: 30 Days
Long Term Safety (Overall MAE Rate at Month 12)
Overall MAE rate at Month 12 and contribution of individual event rates to the overall MAE.
Time frame: 12 months
Number of Participants With Serious Adverse Events
Overall rate and incidence of type of serious adverse events from Day 0 through completion of Study follow-up at Month 36.
Time frame: 36 Months
Technical Success
Percentage of subjects in which a final result of ≤50% residual diameter stenosis (in-stent) was achieved at index procedure
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Brookwood Medical Center
Birmingham, Alabama, United States
Cardiology Associates of Mobile
Mobile, Alabama, United States
Arizona Heart Hospital
Phoenix, Arizona, United States
Yale New Haven Hospital
New Haven, Connecticut, United States
Bradenton Cardiology Center
Bradenton, Florida, United States
MediQuest Research Group/ Munroe Regional Medical Center
Ocala, Florida, United States
Coastal Vascular
Pensacola, Florida, United States
OSF St. Francis Medical Center
Peoria, Illinois, United States
Prairie Education and Research Cooperative
Springfield, Illinois, United States
Kings Daughters Medical Center
Ashland, Kentucky, United States
...and 33 more locations
Time frame: Procedural (at end of index procedure)
Primary Stent Patency
Determined at Months-12 and 24 using values of: PSVR \>2.0, \>2.4; \>2.5; and \>3.5, each to indicate loss of patency on duplex ultrasound or where angiography reveals \>50% diameter stenosis or where the subject undergoes clinically-driven TLR. Further analysis of the patency data purely using a reference PSVR of \>2.4, \>2.5 and \>3.5 was not feasible from the data that was collected.
Time frame: Months 12 & 24
Number of Participants With Improvement of Rutherford Clinical Category by 1 or More
Comparison of Rutherford Clinical Category measured at Baseline, Day 30, Months 12 and 24. Categories 0 - Asymptomatic 1. \- Mild claudication 2. \- Moderate claudication 3. \- Severe claudication 4. \- Ischemic rest pain 5. \- Minor tissue loss 6. \- Major tissue loss
Time frame: Baseline, Day 30, Months 12 & 24
Clinical Outcome (Six-Minute Walk Test)
Comparison of measured at Baseline, Day 30, Months 12 and 24 (subgroup of US investigational sites only).
Time frame: Baseline, Day 30, Months 12 & 24
Functional Outcome (Ankle Brachial Index (ABI) Measurement)
Comparison of the ankle brachial index (ABI) measurement at Baseline, within 30 days after index procedure, then at Months 12 and 24.
Time frame: Baseline, Day 30, Months 12 & 24
Change of Walking Impairment Questionnaire Score
Comparison of the Walking Impairment Questionnaire at Baseline, within 30 days after index procedure, then at Months 12 and 24. The WIQ consists of 3 primary categories assessing walking distance, stair-climbing, and walking speed, as previously described. Individuals are asked to rate the degree of difficulty of various activities with responses ranging from 0 (unable) to 4 (none).
Time frame: Baseline, Day 30, Months 12 & 24
Number of Participants With Freedom From Stent Fracture
Stent integrity measured as freedom from fracture, defined as clear interruption of a stent strut observed in a minimum of two projections, determined by core lab examination of X-rays taken with the leg in extension at 12, 24 and 36 Months.
Time frame: Months 12, 24 & 36