Bypass or Thurpass for Superficial Femoral Artery Occlusion? Scandinavian Thurpass Study

NCT ID: NCT00810134

Last Updated: 2008-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

44 participants

Study Classification

INTERVENTIONAL

Study Start Date

2003-01-31

Study Completion Date

2008-04-30

Brief Summary

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The aim of the study is to compare PTFE-graft bypass surgery versus Viabahn endoprosthesis for femoropopliteal arterial occlusion in intermittent claudication and critical ischaemia in patients who would be technically amenable for both treatments. The primary objective is to compare primary patencies of the two treatments. The secondary objective of the study is to evaluate secondary patency, functional status, the quality of life and costs of the new endovascular therapy.

Detailed Description

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Femoropopliteal bypass graft surgery with PTFE-prosthesis has proven to be an acceptable treatment for stable incapacitating claudication and critical ischaemia in patients with superficial femoral artery occlusion. Preliminary results of a thrupass endoprosthesis in the treatment of femoral lesions are promising. Less morbidity and better cost-effectiveness are suggested to be achieved in treatment of chronic lower limb ischaemia with endovascular treatment comparing to surgical treatment.

A randomised multicentre trial aims to enrol a pilot group of 60 + 60 patients to be followed for 3 years. Patients are treated either with Viabahn thrupass endoprosthesis (Gore corp.) or with 6 mm PTFE-prosthesis bypass graft surgery. Primary patency at three years is the primary end point and secondary patency, functional success, costs and quality of life are the secondary end points.

Conditions

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Femoral Artery Occlusion

Keywords

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Superficial femoral artery occlusion (TASC II B or C)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Thrupass

Endovascular treatment (Thrupass) is performed as a femoropopliteal above knee endovascular recanalisation and Viabahn introduction with 6-7 mm Viabahn endo-prosthesis.

Group Type OTHER

Thrupass

Intervention Type PROCEDURE

Endovascular treatment (Thrupass) is performed as a femoropopliteal above knee endovascular recanalisation and Viabahn introduction with 6-7 mm Viabahn endo-prosthesis.

Bypass

Surgical procedure is performed as a femoropopliteal above knee by-pass with 6 mm non-coated PTFE-graft

Group Type OTHER

Bypass

Intervention Type PROCEDURE

Surgical procedure is performed as a femoropopliteal above knee by-pass with 6 mm non-coated PTFE-graft

Interventions

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Thrupass

Endovascular treatment (Thrupass) is performed as a femoropopliteal above knee endovascular recanalisation and Viabahn introduction with 6-7 mm Viabahn endo-prosthesis.

Intervention Type PROCEDURE

Bypass

Surgical procedure is performed as a femoropopliteal above knee by-pass with 6 mm non-coated PTFE-graft

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. Superficial femoral artery occlusion from 5 to 25 cm in length above the knee joint.
2. Patient must be equally eligible for both procedures.
3. Patient must present intermittent claudication with resistance to medical therapy and exercise or critical ischaemia.
4. Normal adjacent vessel diameter must be between 4.8 and 6.5 mm.
5. At least one patent distal run-off vessel and at least 1 cm of healthy superficial femoral artery below and above the lesion to allow proper placement of the endoprosthesis.
6. Patient must be 18 years or older.
7. Women of childbearing age must have negative pregnancy test prior to inclusion.

Exclusion Criteria

1. Known allergy or contraindications to aspirin, clopidogrel, dipyridamole or anticoagulants.
2. Bleeding diatheses
3. Presence of one or several previously placed endoprosthesis or grafts in the superficial femoral artery segment.
4. Planned other endovascular therapy of the same segment.
5. Other than 6-7 mm diameter endoprosthesis or 6 mm PTFE-prosthesis is needed.
6. Presence of evolving malignant cancer or any other illness posing an immediate threat to life.
7. Life-expectancy less than 2 years due to co-morbidity or other situation that would make the patient unlikely candidate for follow-up visits.
8. Participation in another vascular clinical study less than 30 days prior to inclusion.
9. Patients unable to fill out the prescribed quality of life questionnaires themselves or unable to understand the full meaning of the informed consent.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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W.L.Gore & Associates

INDUSTRY

Sponsor Role collaborator

University of Helsinki

OTHER

Sponsor Role lead

Responsible Party

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Department of Vascular Surgery, Helsinki University Central Hospital

Principal Investigators

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Mauri Lepantalo, M.D., PhD

Role: PRINCIPAL_INVESTIGATOR

Department of Vascular Surgery, Helsinki University Central Hospital

Locations

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Department of Vascular Surgery, Helsinki University Central Hospital

Helsinki, , Finland

Site Status

Countries

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Finland

Other Identifiers

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Version 1.7 - Oct 15th 2002

Identifier Type: -

Identifier Source: org_study_id