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BioMimics 3D Stent Clinical Investigation: The Mimics Study (Mimics)

Primary Purpose

Peripheral Arterial Disease

Status
Completed
Phase
Not Applicable
Locations
Germany
Study Type
Interventional
Intervention
Femoropopliteal stenting
Sponsored by
Veryan Medical Ltd.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Peripheral Arterial Disease focused on measuring Peripheral arterial disease (PAD), Peripheral vascular disease (PVD), Biomimetic stent, Helical centerline

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • >18 years of age
  • The subject or legal guardian has been informed of the nature of the study and agrees to its provisions and has provided informed written consent
  • The subject is willing to be available for the appropriate follow-up for the duration of the study
  • Rutherford 1-4(mild claudication to ischemic rest pain), with an occlusion or de novo and/or restenotic SFA/PPA lesion ≥50% and ABI/TBI <0.90/0.80
  • Single target lesion located at least 1 cm distal to the take-off of the profunda femoris artery and at least 3 cm proximal to the highest point of the cortical margin of the femur
  • Target vessel reference diameter is ≥3.5 mm and ≤7.0 mm
  • Target lesion length is ≥4.0 cm and ≤10.0 cm, and must be intended to be covered with one single stent only. A second stent is permitted to be placed only if, in the physician's opinion, the first stent did not achieve an optimum clinical result
  • Adequate distal run-off to the ankle in the target limb (defined as having at least one patent calf vessel <50% stenosed
  • Life expectancy >24 months

Exclusion Criteria:

  • Women who do not have a negative serum or urine pregnancy test documented within 7 days prior to enrollment (if not already post menopausal) or women who do not agree to use an adequate birth control method for up to 24 months after Device implantation
  • An uncontrolled infectious disease
  • A condition that inhibits radiographic visualisation of the arteries
  • Any condition that precludes safe access with PTA devices, such as: excessive common femoral artery disease, unresolved fresh thrombus in the target lesion/vessel, or a target lesion/vessel that is excessively tortuous or calcified
  • Known allergy to, or intolerance of, Nitinol
  • Known intolerance of aspirin and/or clopidogrel
  • Known hypersensitivity to contrast media which cannot be pre-treated
  • Participation in another device or drug study. Subject must have completed the follow- up phase of any previous study at least 30 days prior to enrollment into this study. The subject may only be enrolled in this study once
  • The subject is unable and/or unwilling to cooperate with study procedures or required follow-up visits
  • History of bleeding diatheses or coagulopathy or will refuse blood transfusions
  • Known impaired renal function, defined as creatinine >2.5 mg/dl except subjects under chronic renal replacement therapy
  • Known platelet count <80,000 cells/mm3 or >700,000 cells/mm3
  • Known WBC of <3,000 cells/mm3
  • The subject is unable to bend lower limbs (full knee flexion) and/or has a knee prosthesis
  • Previous treatment of the target lesion 6 months prior to enrollment; previous femoropopliteal bypass in the target vessel; previous stenting of the target lesion
  • Previous stenting of the SFA, popliteal and tibial arteries within the target limb
  • Target lesion located within an aneurysm or associated with an aneurysm in the vessel segment either proximal or distal to the target lesion
  • Target lesion requires treatment other than standard PTA prior to stent placement (i.e., no other devices or procedures such as cutting balloons and laser atherectomy are permitted to be used during the index procedure)
  • Lesions in contralateral SFA that require intervention during the index procedure, or within 30 days after the index procedure, unless both limbs are able to be and are included in the study
  • Multiple lesions in the target vessel that require stenting within 30 days after study procedure
  • Target lesion length is > 10cm or the physician believes prior to stent placement that the lesion cannot be covered by one single stent
  • The target lesion is severely calcified

Sites / Locations

  • Universitaets-Herzzentrum Freiburg-Bad Krozingen

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

BioMimics 3D

Control

Arm Description

The BioMimics 3D Stent System, delivering a self-expanding Nitinol stent with 3D helical centerline geometry.

CR Bard LifeStent System, delivering a self-expanding Nitinol stent

Outcomes

Primary Outcome Measures

Primary safety endpoint
Freedom from major adverse events defined as death, amputation and target lesion revascularization (TLR)
Primary performance endpoint
Freedom from clinically driven TLR

Secondary Outcome Measures

Acute procedural outcomes
Device deployment success Acute procedural success Procedural complications
Post implant anatomical outcomes
- Stented vessel geometry, i.e. presence/absence of 3D helical geometry in the stented region
Mechanical outcomes
- Stent integrity, i.e. presence/absence of kinks and fractures
Haemodynamic outcomes
Restenosis measured by duplex ultrasound and angiography. Swirling flow
Clinical and functional outcomes
Rutherford classification (not at discharge) ABI Walking impairment questionnaire (not at discharge) Freedom from major adverse events at 30 days, 6, 12 and 24 months.

Full Information

First Posted
June 9, 2014
Last Updated
November 12, 2019
Sponsor
Veryan Medical Ltd.
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1. Study Identification

Unique Protocol Identification Number
NCT02163863
Brief Title
BioMimics 3D Stent Clinical Investigation: The Mimics Study
Acronym
Mimics
Official Title
BioMimics 3D Stent Clinical Investigation: The Mimics Study
Study Type
Interventional

2. Study Status

Record Verification Date
November 2019
Overall Recruitment Status
Completed
Study Start Date
February 2010 (undefined)
Primary Completion Date
October 2012 (Actual)
Study Completion Date
July 2014 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Veryan Medical Ltd.

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
Primary purpose of the Mimics Study is to evaluate the safety and performance of the BioMimics 3D Stent System in the treatment of symptomatic SFA/proximal popliteal disease.
Detailed Description
The Mimics Study is a prospective, part randomized study; an initial roll-in registry of 10 subjects treated with BioMimics 3D followed by a randomized assignment to treatment with BioMimics 3D or Control on a 2:1 basis for 76 subjects. The primary purpose of the study is to evaluate the safety and performance of the BioMimics 3D Stent System in the treatment of symptomatic SFA/proximal popliteal disease based on: Safety; measured by freedom from major adverse events determined at 30 days after the procedure, compared to historic controls. Performance; measured by freedom from clinically driven TLR at 6 months, compared to historic controls.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Peripheral Arterial Disease
Keywords
Peripheral arterial disease (PAD), Peripheral vascular disease (PVD), Biomimetic stent, Helical centerline

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
86 (Actual)

8. Arms, Groups, and Interventions

Arm Title
BioMimics 3D
Arm Type
Experimental
Arm Description
The BioMimics 3D Stent System, delivering a self-expanding Nitinol stent with 3D helical centerline geometry.
Arm Title
Control
Arm Type
Active Comparator
Arm Description
CR Bard LifeStent System, delivering a self-expanding Nitinol stent
Intervention Type
Device
Intervention Name(s)
Femoropopliteal stenting
Primary Outcome Measure Information:
Title
Primary safety endpoint
Description
Freedom from major adverse events defined as death, amputation and target lesion revascularization (TLR)
Time Frame
30 days
Title
Primary performance endpoint
Description
Freedom from clinically driven TLR
Time Frame
6 months
Secondary Outcome Measure Information:
Title
Acute procedural outcomes
Description
Device deployment success Acute procedural success Procedural complications
Time Frame
Within 30 days of the procedure
Title
Post implant anatomical outcomes
Description
- Stented vessel geometry, i.e. presence/absence of 3D helical geometry in the stented region
Time Frame
Immediately post implant but within the index procedure
Title
Mechanical outcomes
Description
- Stent integrity, i.e. presence/absence of kinks and fractures
Time Frame
30 days, 6, 12 and 24 months
Title
Haemodynamic outcomes
Description
Restenosis measured by duplex ultrasound and angiography. Swirling flow
Time Frame
discharge, 30 days, 6, 12 and 24 months
Title
Clinical and functional outcomes
Description
Rutherford classification (not at discharge) ABI Walking impairment questionnaire (not at discharge) Freedom from major adverse events at 30 days, 6, 12 and 24 months.
Time Frame
discharge, 30 days, 6, 12 and 24 months

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: >18 years of age The subject or legal guardian has been informed of the nature of the study and agrees to its provisions and has provided informed written consent The subject is willing to be available for the appropriate follow-up for the duration of the study Rutherford 1-4(mild claudication to ischemic rest pain), with an occlusion or de novo and/or restenotic SFA/PPA lesion ≥50% and ABI/TBI <0.90/0.80 Single target lesion located at least 1 cm distal to the take-off of the profunda femoris artery and at least 3 cm proximal to the highest point of the cortical margin of the femur Target vessel reference diameter is ≥3.5 mm and ≤7.0 mm Target lesion length is ≥4.0 cm and ≤10.0 cm, and must be intended to be covered with one single stent only. A second stent is permitted to be placed only if, in the physician's opinion, the first stent did not achieve an optimum clinical result Adequate distal run-off to the ankle in the target limb (defined as having at least one patent calf vessel <50% stenosed Life expectancy >24 months Exclusion Criteria: Women who do not have a negative serum or urine pregnancy test documented within 7 days prior to enrollment (if not already post menopausal) or women who do not agree to use an adequate birth control method for up to 24 months after Device implantation An uncontrolled infectious disease A condition that inhibits radiographic visualisation of the arteries Any condition that precludes safe access with PTA devices, such as: excessive common femoral artery disease, unresolved fresh thrombus in the target lesion/vessel, or a target lesion/vessel that is excessively tortuous or calcified Known allergy to, or intolerance of, Nitinol Known intolerance of aspirin and/or clopidogrel Known hypersensitivity to contrast media which cannot be pre-treated Participation in another device or drug study. Subject must have completed the follow- up phase of any previous study at least 30 days prior to enrollment into this study. The subject may only be enrolled in this study once The subject is unable and/or unwilling to cooperate with study procedures or required follow-up visits History of bleeding diatheses or coagulopathy or will refuse blood transfusions Known impaired renal function, defined as creatinine >2.5 mg/dl except subjects under chronic renal replacement therapy Known platelet count <80,000 cells/mm3 or >700,000 cells/mm3 Known WBC of <3,000 cells/mm3 The subject is unable to bend lower limbs (full knee flexion) and/or has a knee prosthesis Previous treatment of the target lesion 6 months prior to enrollment; previous femoropopliteal bypass in the target vessel; previous stenting of the target lesion Previous stenting of the SFA, popliteal and tibial arteries within the target limb Target lesion located within an aneurysm or associated with an aneurysm in the vessel segment either proximal or distal to the target lesion Target lesion requires treatment other than standard PTA prior to stent placement (i.e., no other devices or procedures such as cutting balloons and laser atherectomy are permitted to be used during the index procedure) Lesions in contralateral SFA that require intervention during the index procedure, or within 30 days after the index procedure, unless both limbs are able to be and are included in the study Multiple lesions in the target vessel that require stenting within 30 days after study procedure Target lesion length is > 10cm or the physician believes prior to stent placement that the lesion cannot be covered by one single stent The target lesion is severely calcified
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Thomas Zeller, M.D.
Organizational Affiliation
Universitäts-Herzzentrum Freiburg Bad Krozingen
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Sebastian Sixt, MD
Organizational Affiliation
Medizinisches Versorgungszentrum Hamburg
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Henrik Schroeder, MD
Organizational Affiliation
Zentrum für Minimal Invasive Therapie Berlin
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Horst Sievert, MD
Organizational Affiliation
Cardiovascular Center Frankfurt
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Karl-Ludwig Schulte, MD
Organizational Affiliation
Königin Elisabeth Herzberge Berlin
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Gunnar Tepe, MD
Organizational Affiliation
Klinikum Rosenheim
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Giovanni Torsello, MD
Organizational Affiliation
St. Franziskus Hospital Münster
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Dierk Scheinert, MD
Organizational Affiliation
Park-Krankenhaus Leipzig
Official's Role
Principal Investigator
Facility Information:
Facility Name
Universitaets-Herzzentrum Freiburg-Bad Krozingen
City
Bad Krozingen
Country
Germany

12. IPD Sharing Statement

Citations:
PubMed Identifier
27208046
Citation
Zeller T, Gaines PA, Ansel GM, Caro CG. Helical Centerline Stent Improves Patency: Two-Year Results From the Randomized Mimics Trial. Circ Cardiovasc Interv. 2016 Jun;9(6):e002930. doi: 10.1161/CIRCINTERVENTIONS.115.002930.
Results Reference
result

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BioMimics 3D Stent Clinical Investigation: The Mimics Study

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