search
Back to results

PREVENT: Promus BTK (PREVENT)

Primary Purpose

Peripheral Arterial Disease

Status
Completed
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
Everolimus-Eluting Stent (PROMUS ELEMENT)
Sponsored by
Flanders Medical Research Program
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, Claudication, Drug-Eluting Stent, BTK, Everolimus, CLI

Eligibility Criteria

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

General Inclusion Criteria:

  • Patient presenting with rest pain or minor tissue loss (Rutherford class 4 or 5)
  • Patient is willing to comply with specified follow-up evaluations at the specified times
  • Patient is >18 years old
  • Patient understands the nature of the procedure and provides written informed consent, prior to enrolment in the study
  • Patient has a projected life-expectancy of at least 12 months
  • The treating physician consider the patient eligible for below-the-knee treatment with the PROMUS ELEMENT Stent (Boston Scientific) and PROMUS ELEMENT PLUS Stent (Boston Scientific)
  • Male, infertile female, or female of child bearing potential practicing an acceptable method of birth control with a negative pregnancy test within 7 days prior to study procedure

Angiographic Inclusion Criteria:

  • Single or multiple lesions with minimally 70% stenosis in one or more infrapopliteal arteries, including the tibiofibular trunk
  • A maximum of two focal target lesions in one or more infrapopliteal vessels
  • Length of lesion is maximally 40 mm, allowing maximally 2 planned stents to be implanted
  • Target vessel diameter visually estimated to be >2.5mm and <4.0mm
  • Guidewire and delivery system successfully traversed lesion

General Exclusion Criteria:

  • Patient refusing treatment
  • Previously implanted stent in the artery to be treated
  • Failed PTA of target lesion/vessel less than 3 months prior to study procedure
  • The reference segment diameter is not suitable for the available stent design
  • Untreated flow-limiting inflow lesions
  • Perioperative unsuccessful ipsilateral percutaneous vascular procedure to treat inflow disease just prior to enrollment
  • Any previous surgery in the target vessel (including prior ipsilateral crural bypass)
  • Aneurysm in the target vessel
  • Patient presents with renal failure, evidenced by a serum creatinine level >2.0mg/dL
  • Patient presents with platelet levels above or below normal range
  • Non-atherosclerothic disease resulting in occlusion (e.g. embolism, Buerger's disease, vasculitis)
  • Severe medical comorbidities (untreated CAD/CHF, severe COPD, metastatic malignancy, dementia, etc) or other medical condition that would preclude compliance with the study protocol or 1-year life expectancy
  • Major distal amputation (above the transmetatarsal) in the study limb or non-study limb
  • Septicemia or bacteremia
  • Any previously known coagulation disorder, including hypercoagulability
  • Contraindication to anticoagulation or antiplatelet therapy
  • Known allergies to stent or stent components
  • Known allergy to contrast media that cannot be adequately pre-medicated prior to the study procedure
  • Patient with known hypersensitivity to heparin, including those patients who have had a previous incidence of heparin-induced thrombocytopenia (HIT) type II
  • Currently participating in another clinical research trial
  • Angiographic evidence of intra-arterial thrombus or atheroembolism from inflow treatment
  • Target lesion access not performed by transfemoral approach.

Sites / Locations

  • Imelda Hospital
  • OLV Aalst
  • AZ Sint-Blasius
  • RZ Heilig Hart Tienen
  • Herzzentrum Leipzig
  • Herzzentrum Bad-Krözingen
  • St. Fransiskus Hospital
  • Auckland City Hospital

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Drug-eluting stent

Arm Description

Patients implanted with the PROMUS ELEMENT Everolimus-Eluting Stent System (Boston Scientific) or the PROMUS ELEMENT PLUS Everolimus-Eluting Stent System (Boston Scientific).

Outcomes

Primary Outcome Measures

Primary patency
Absence of restenosis (50% stenosis) or occlusion within the originally treated lesion based on angiography.

Secondary Outcome Measures

Technical success
The ability to cross and dilate the lesion to achieve residual angiographic stenosis no greater than 30%.
Hemodynamic primary patency rate
Patients that present without a hemodynamically significant stenosis at the target area on duplex ultrasound (systolic velocity ratio no greater than 2.4) and without prior TLR are defined as being primary patent at the given follow-up.
Limb-salvage
Absence of major amputation, 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).
Primary assisted patency rate
Defined as flow through the treated lesion maintained by repeat percutaneous intervention completed prior to complete vessel closure.
Secondary patency rate
Defined as flow through the treated lesion maintained by repeat percutaneous intervention after occlusion of the target lesion.
Target lesion revascularization (TLR)
Defined as a repeat intervention 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.
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.
Improvement of ankle-brachial index (ABI)
Defined as an increase of the ABI at 1 day and 1, 6, 12-month follow-up compared to baseline in subjects with compressible arteries and baseline ABI <0.9.
Serious Adverse Events (SAE)
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

First Posted
December 19, 2011
Last Updated
August 10, 2016
Sponsor
Flanders Medical Research Program
search

1. Study Identification

Unique Protocol Identification Number
NCT01500070
Brief Title
PREVENT: Promus BTK
Acronym
PREVENT
Official Title
PREVENT: a Prospective, Multi-center, Monitored Trial Investigating the Implant of the Promus Everolimus-Eluting Stent System in Critically Ischemic Lesions BTK
Study Type
Interventional

2. Study Status

Record Verification Date
August 2016
Overall Recruitment Status
Completed
Study Start Date
August 2012 (undefined)
Primary Completion Date
January 2016 (Actual)
Study Completion Date
January 2016 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Flanders Medical Research Program

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is a single-arm, prospective, multi-center monitored trial recruiting patients with critical limb ischemia and with one or more lesions in the arteries below the knee. The immediate and long-term (up to 12 months) outcome of the PROMUS ELEMENT Everolimus-Eluting Stent System (Boston Scientific) and the PROMUS ELEMENT PLUS Everolimus-Eluting Stent System (Boston Scientific) will be evaluated. In 2 Belgian centers, 3 German centers and 1 New Zealand center a total of 70 patients will be recruited. Primary endpoint is primary patency at 12 months, defined as absence of restenosis (≥50% stenosis) or occlusion within the originally treated lesion based on angiography.

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, Claudication, Drug-Eluting Stent, BTK, Everolimus, CLI

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
70 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Drug-eluting stent
Arm Type
Experimental
Arm Description
Patients implanted with the PROMUS ELEMENT Everolimus-Eluting Stent System (Boston Scientific) or the PROMUS ELEMENT PLUS Everolimus-Eluting Stent System (Boston Scientific).
Intervention Type
Device
Intervention Name(s)
Everolimus-Eluting Stent (PROMUS ELEMENT)
Intervention Description
PROMUS ELEMENT Everolimus-Eluting Stent System (Boston Scientific) or PROMUS ELEMENT PLUS Everolimus-Eluting Stent System (Boston Scientific).
Primary Outcome Measure Information:
Title
Primary patency
Description
Absence of restenosis (50% stenosis) or occlusion within the originally treated lesion based on angiography.
Time Frame
12 months
Secondary Outcome Measure Information:
Title
Technical success
Description
The ability to cross and dilate the lesion to achieve residual angiographic stenosis no greater than 30%.
Time Frame
1 day post-procedure
Title
Hemodynamic primary patency rate
Description
Patients that present without a hemodynamically significant stenosis at the target area on duplex ultrasound (systolic velocity ratio no greater than 2.4) and without prior TLR are defined as being primary patent at the given follow-up.
Time Frame
1, 6 and 12 month follow-up
Title
Limb-salvage
Description
Absence of major amputation, 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
1, 6 and 12 month follow-up
Title
Primary assisted patency rate
Description
Defined as flow through the treated lesion maintained by repeat percutaneous intervention completed prior to complete vessel closure.
Time Frame
1, 6 and 12 month follow-up
Title
Secondary patency rate
Description
Defined as flow through the treated lesion maintained by repeat percutaneous intervention after occlusion of the target lesion.
Time Frame
1, 6 and 12 month follow-up
Title
Target lesion revascularization (TLR)
Description
Defined as a repeat intervention 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
1 day, 1 month, 6 month and 12 month follow-up
Title
Clinical success at follow-up
Description
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 day, 1 month, 6 month and 12 month follow-up
Title
Improvement of ankle-brachial index (ABI)
Description
Defined as an increase of the ABI at 1 day and 1, 6, 12-month follow-up compared to baseline in subjects with compressible arteries and baseline ABI <0.9.
Time Frame
1 day, 1 month, 6 month and 12 month follow-up
Title
Serious Adverse Events (SAE)
Description
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
1 day, 1 month, 6 month and 12 month follow-up

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
General Inclusion Criteria: Patient presenting with rest pain or minor tissue loss (Rutherford class 4 or 5) Patient is willing to comply with specified follow-up evaluations at the specified times Patient is >18 years old Patient understands the nature of the procedure and provides written informed consent, prior to enrolment in the study Patient has a projected life-expectancy of at least 12 months The treating physician consider the patient eligible for below-the-knee treatment with the PROMUS ELEMENT Stent (Boston Scientific) and PROMUS ELEMENT PLUS Stent (Boston Scientific) Male, infertile female, or female of child bearing potential practicing an acceptable method of birth control with a negative pregnancy test within 7 days prior to study procedure Angiographic Inclusion Criteria: Single or multiple lesions with minimally 70% stenosis in one or more infrapopliteal arteries, including the tibiofibular trunk A maximum of two focal target lesions in one or more infrapopliteal vessels Length of lesion is maximally 40 mm, allowing maximally 2 planned stents to be implanted Target vessel diameter visually estimated to be >2.5mm and <4.0mm Guidewire and delivery system successfully traversed lesion General Exclusion Criteria: Patient refusing treatment Previously implanted stent in the artery to be treated Failed PTA of target lesion/vessel less than 3 months prior to study procedure The reference segment diameter is not suitable for the available stent design Untreated flow-limiting inflow lesions Perioperative unsuccessful ipsilateral percutaneous vascular procedure to treat inflow disease just prior to enrollment Any previous surgery in the target vessel (including prior ipsilateral crural bypass) Aneurysm in the target vessel Patient presents with renal failure, evidenced by a serum creatinine level >2.0mg/dL Patient presents with platelet levels above or below normal range Non-atherosclerothic disease resulting in occlusion (e.g. embolism, Buerger's disease, vasculitis) Severe medical comorbidities (untreated CAD/CHF, severe COPD, metastatic malignancy, dementia, etc) or other medical condition that would preclude compliance with the study protocol or 1-year life expectancy Major distal amputation (above the transmetatarsal) in the study limb or non-study limb Septicemia or bacteremia Any previously known coagulation disorder, including hypercoagulability Contraindication to anticoagulation or antiplatelet therapy Known allergies to stent or stent components Known allergy to contrast media that cannot be adequately pre-medicated prior to the study procedure Patient with known hypersensitivity to heparin, including those patients who have had a previous incidence of heparin-induced thrombocytopenia (HIT) type II Currently participating in another clinical research trial Angiographic evidence of intra-arterial thrombus or atheroembolism from inflow treatment Target lesion access not performed by transfemoral approach.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Marc Bosiers, MD
Organizational Affiliation
AZ Sint Blasius, Dendermonde, Belgium
Official's Role
Principal Investigator
Facility Information:
Facility Name
Imelda Hospital
City
Bonheiden
State/Province
Antwerpen
ZIP/Postal Code
2820
Country
Belgium
Facility Name
OLV Aalst
City
Aalst
State/Province
Oost-Vlaanderen
ZIP/Postal Code
9300
Country
Belgium
Facility Name
AZ Sint-Blasius
City
Dendermonde
State/Province
Oost-Vlaanderen
ZIP/Postal Code
9200
Country
Belgium
Facility Name
RZ Heilig Hart Tienen
City
Tienen
ZIP/Postal Code
3300
Country
Belgium
Facility Name
Herzzentrum Leipzig
City
Leipzig
State/Province
Freistaat Sachsen
ZIP/Postal Code
04289
Country
Germany
Facility Name
Herzzentrum Bad-Krözingen
City
Bad-Krözingen
State/Province
Land Baden-Württemberg
ZIP/Postal Code
79189
Country
Germany
Facility Name
St. Fransiskus Hospital
City
Münster
State/Province
Nordrhein-Westfalen
ZIP/Postal Code
48145
Country
Germany
Facility Name
Auckland City Hospital
City
Auckland City
State/Province
Auckland
ZIP/Postal Code
1023
Country
New Zealand

12. IPD Sharing Statement

Links:
URL
http://www.fmrp.be
Description
Flanders Medical Research Program

Learn more about this trial

PREVENT: Promus BTK

We'll reach out to this number within 24 hrs