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Prof. Thomas Zeller Department Angiology University Heart-Center Freiburg - Bad Krozingen Bad Krozingen , Germany The MIMICS-2 IDE study: interim update on BioMimics 3D in US, Japan, and Europe

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  • Prof. Thomas ZellerDepartment AngiologyUniversity Heart-Center Freiburg - Bad KrozingenBad Krozingen , Germany

    The MIMICS-2 IDE study: interim update on

    BioMimics 3D in US, Japan, and Europe

  • Faculty Disclosure

    For the 12 months preceding this presentation, I disclose the following types of financial relationships:

    • Honoraria received from: Abbott Vascular, Bard Peripheral Vascular, Veryan, Biotronik, Boston Scientific Corp., Cook Medical, Cordis Corp., Gore & Associates, Medtronic, Spectranetics, Straub Medical, TriReme

    • Consulted for: Abbott Vascular, Bard Peripheral Vascular, Boston Scientific Corp., Cook Medical, Gore & Associates, Medtronic, Spectranetics

    • Research, clinical trial, or drug study funds received from:480 biomedical, Bard Peripheral Vascular, Veryan, Biotronik, Cook Medical, Cordis Corp., Gore & Associates, Abbott Vascular, Medtronic, Spectranetics, Terumo, TriReme, Volcano

    Thomas Zeller, MD

  • Biomimicry: Platform for Stent Design Innovation

    Vascular system uses

    non-planar curvature to promote

    swirling blood flow that protects

    vessels by increasing wall shear

    on endothelial cells and promotes

    diffusion of Oxygen to the

    arterial wall

    Protective

    Suboptimal

    Pathogenic

    1.5

    0.5

    7.0

    Wall Shear Stress (Pascal)

    1.

    1. Malek et al JAMA 1999

  • What’s Unique about the BioMimics 3D stent?

    SHORT co-linear connectors LONG co-linear connectors

    LifeStentSPIRAL connectors

    Unique BioMimics 3D design:SHORT + LONG connectors SPIRAL configuration

    Zilver PTXComplete SE

    … and 3D helical centreline in Nitinol shape memory.

    Imparts non-planar curvatureto stented segment

    Improves biomechanical performance 2

    Promotes swirling flow to increasewall shear stress 1

    1. Caro et al., 2013

    2. Data held on file at Veryan Medical

  • MIMICS Clinical Program

    Feasibility StudyN=101 site

    MIMICS

    RandomizedControlledvs. straight stent

    N=508 sites24-month follow-up 1

    CE Mark

    MIMICS-2

    Prospective, multinational evaluation of safety and primary patency at 12 months

    N=27147 sites36-monthfollow-up

    IDE Study (US, Japan, Germany)

    MIMICS-3D

    Prospective, observational evaluation within real-world clinical population

    N=500+25 sites36-monthfollow-up

    EuropeanPost-market Surveillance Registry

    MIMICS et seq

    Investigator-initiated and retrospective studies evaluating safety, efficacy and performance

    Targets of interest:- popliteal- calcified lesions- DCB combination

    Post-market & Geographic

    1. Zeller et al Circulation CI 2016

  • Mimics Study: Lesion Characteristics

    BioMimics 3D (N=50)

    Control stent(N=26)

    P value

    Lesion Location SFA 92% 77% 0.08SFA/Popliteal 6% 12% 0.41

    Popliteal 2% 12% 0.11TASC II A 42% 42% 1.00

    B 56% 58% 1.00C 2% 0% 1.00

    Lesion Length mm 66 ± 29 63 ± 28 0.66Stent Length mm 99 ± 30 88 ± 22 0.08Occlusion Total 44% 46% 1.00Calcification Moderate to Severe 52% 58% 0.81

    Comparison with Other Studies

    Superb Zilver PTX Durability II

    Mimics IN.PACT LEVANT 2

    Total Occlusions 25% 30% 48% 44% 25.8% 20.6%

    Calcium (severe) 44% 37% 43% 42% 8% 17.6%

  • ControlBioMimics3D

    2.25

    2.00

    1.75

    1.50

    1.25

    1.00

    0.75

    0.50

    Wall

    Shear

    Str

    ess

    (Pa)

    In the Mimics randomized clinical trial, compared to Control stents, BioMimics 3D stents generated:

    • 55% more swirling flow* (P= 0.017)

    • 18% more wall shear stress (P= 0.054)

    (n=42)(n=23)

    * Swirling flow = Steady state adaptation of helical flow defined by Gallo J. Biomech. 45, (2012), 2398-2404

    ControlBioMimics3D

    0.00004

    0.00003

    0.00002

    0.00001

    0.00000

    Sw

    irlin

    g F

    low

    (m

    ^4

    s^

    -2)

    Swirling Flow & Wall Shear Stress

    Data on file at Veryan Medical

  • Kaplan Meier Estimate of Survival from Loss of Patency

    PSVR >2.0, or >50% diameter stenosis, or adjudicated, clinically-driven TLR

    Mimics Study: Primary Patency

    Log rank test

    P = 0.05

    80%72%

    71%

    55%

    Months 246 12

    0

    20

    40

    60

    80

    100

    __ BioMimics 3D

    __ Control Stent

    Cu

    mu

    lative

    Su

    rviv

    al

  • 24 Months12

    0

    20

    40

    60

    80

    100

    Cu

    mu

    lative

    Su

    rviv

    al

    Log rank

    test

    P = 0.03

    Kaplan Meier Estimate of Survival from CDTLR (Landmark Analysis)

    (Clinically-driven TLR determined through Event Adjudication)

    Mimics Study: Durable Benefit

    __ BioMimics 3D

    __ Control Stent

  • Mimics Study: Curvature Confirmed

    Non-planar curvature in stented segment

    Swirling flow patterns revealed by CFD modelling

  • Mimics Study: Real-World CurvatureIf lesion is heavily calcified, is curvature of the stented segment attenuated?

    p = 0.14

    % P

    ate

    ncy

    Curv

    atu

    re m

    m-1

    240 6 12 months

    20

    40

    60

    80

    100

    0

    Calcification

    ___none – mild

    ___moderate - severe

    log rank test

    p = 0.73

    • Curvature and freedom from loss of primary patency are independent of calcification

    Data on file at Veryan Medical

  • MIMICS-2 IDE StudyEvaluation of Safety and Effectiveness of BioMimics 3D in Femoropopliteal Intervention

    • Primary Endpoints:

    • Safety: composite of death, any major amputation performed on the index limb or

    clinically-driven target lesion revascularisation (CDTLR) through 30 days

    • Effectiveness: 12-month Primary Patency

    • Follow-up: 3 years

    • IDE Study extended to Japan through FDA/PMDA Harmonization by Doing Initiative

    • 47 investigational sites: 35 US; 6 Germany; 6 Japan

    Study Principal Investigators

    Professor Timothy M. Sullivan, M.D Minneapolis, MN, USA

    Professor Thomas Zeller, MD Bad Krozingen, Germany

    Professor Masato Nakamura, MD Tokyo, Japan

    • Independent core labs: ultrasound; angiography; clinical event adjudication

    Enrolment Completed Oct-2016

  • N= 271 Subjects

    Age Mean years ± SD (N) 68.4 ± 9.5 (271/271)Gender Male / Female 180 (66.4%) / 91 (33.6%)Risk Factors Diabetes Mellitus 45.4% (123/271)

    Hypertension 90.0% (244/271)Hypercholesterolemia 81.9% (222/271)

    Smoker Current / Former 80.8% (219/271)Cardiac History Coronary artery disease 46.1% (125/271)Previous Intervention None in target vessel 98.9% (268/271)Rutherford Category

    1 0% (0/271)2 26.9% (73/271)3 67.5% (183/271)4 5.2% (14/271)5 0.4% (1/271)

    Ankle Brachial Index Mean ± SD (N) 0.69 ± 0.20 (266/271)

    MIMICS-2 IDE StudyBaseline Patient Demographics

  • MIMICS-2 IDE StudyBaseline Angiographic Characteristics

    N= 271 Subjects

    Reference Vessel Diameter2 Mean ± SD (mm) 5.18 ± 0.9Lesion Type1 De novo 100% (271/271)Lesion Location2 Prox SFA 9.0% (24/265)

    Mid SFA 48.7% (129/265)Distal SFA 40.0% (106/265)

    Prox Popliteal 2.3% (6/265)Lesion Length2 Mean ± SD (mm) 80.7 ± 38.2 (265/271)Occlusion2 Total 29.5% (80/271)Calcification2 None - Mild 53.6% (142/265)

    Moderate - Severe 46.4% (123/265)Patent Infrapopliteal Vessels2 0 0% (0/252)

    1 27.8% (70/252)2 52.0% (131/252)3 20.2% (51/252)

    1. Per investigator

    2. Core Lab

  • MIMICS-2 IDE StudyIndex Procedure Data

    N= 271 Subjects

    BioMimics 3D Stents placed1 # Stents / N 305 / 271# Subjects with 1 stent 87.5% (237/271)# Subjects with 2 stents 12.5% (34/271)# Subjects with 3 stents 0% (0/271)

    Stented Segment Length2 Mean ± SD (mm) 112.5 ± 36.4 (265/271)Diameter Stenosis2 Pre-stent % ± SD 78.8 ± 22.1 (265/271)

    Post-stent % ± SD 12.8 ± 8.0 (265/271)Dissections2 No Dissection 97.7% (259/265)

    Type A-C 2.3% (6/265)Type D-F 0% (0/265)

    Device Success 100% (271/271)Technical Success2 100% (265/265)

    Device Success: Successful delivery of System; placement of stent and retrieval of System

    Technical Success: Core Lab determination of ≤50% residual diameter stenosis (in-stent) at

    conclusion of index procedure

    1. Per investigator

    2. Core Lab

  • MIMICS-3D RegistryProspective, multicentre observational study to evaluate BioMimics 3D in peripheral arterial disease

    • Primary Endpoints:

    • Safety: composite of death, any major amputation performed on the index limb or

    clinically-driven target lesion revascularisation (CDTLR) through 30 days

    • Effectiveness: 12-month Primary Patency

    • Follow-up: 3 years

    • Post-market surveillance study

    • 25 investigational sites in Europe

    Study Principal Investigator

    Michael Lichtenberg MD Arnsberg, Germany

    • Independent clinical event adjudication

    Enrolment Ongoing

  • MIMICS Clinical Program

    Feasibility StudyN=101 site

    MIMICS

    RandomizedControlledvs. straight stent

    N=508 sites24-month follow-up1

    CE Mark

    MIMICS-2

    Prospective, multinational evaluation of safety and primary patency at 12 months

    N=27147 sites36-monthfollow-up

    IDE Study (US, Japan, Germany)

    MIMICS-3D

    Prospective, observational evaluation within real-world clinical population

    N=500+25 sites36-monthfollow-up

    EuropeanPost-market Surveillance Registry

    MIMICS et seq

    Investigator-initiated and retrospective studies evaluating safety, efficacy and performance

    Targets of interest:- popliteal- calcified lesions- DCB combination

    Post-market & Geographic

    1. Zeller et al Circulation CI 2016

  • Prof. Thomas ZellerDepartment AngiologyUniversity Heart-Center Freiburg - Bad KrozingenBad Krozingen , Germany

    The MIMICS-2 IDE study: interim update on

    BioMimics 3D in US, Japan, and Europe