There is both a poor life expectancy and a poor prognosis of limb salvage in those patience with stenoses or occlusions of the lower limb (TASC Consensus). To date only a small number of these patients could be helped through medication or surgery. In fact within the first year following diagnosis of a critical limb ischemia 25% of patients lose their leg and 90% have to undergo a percutaneous transluminal angioplasty (PTA) or bypass surgery. Using PTA for treatment of long infrapopliteal artery lesions, stenosis reoccurs in 70% to 80% of cases 3 months after index procedure. Even the use of drug-eluting balloons leads only to 1-year primary patency rates up to 30%. The primary objective of this study is to compare the performance of atherectomy followed by a drug-coated balloon angioplasty over drug-coated balloon angioplasty alone in long de-novo infrapopliteal lesions in a prospective, single-center, randomized clinical trial.
This is a single-centre, prospective, randomized study to be conducted in Bad Krozingen (Germany). A total of 80 subjects will be entered into the study and will be randomized on a 1:1 basis to either drug-coated balloon angioplasty or atherectomy and drug-coated balloon angioplasty for infrapopliteal use in subjects with long de-novo stenosis (≥6cm) and symptomatic peripheral artery disease (Rutherford 3, 4, or 5). IVUS of the target lesion prior and after intervention will be performed in 15 patients of each group during index procedure. All subjects will undergo a repeat angiography at 3 months to assess the primary endpoint of In-Segment Binary Restenosis. Follow-up visits are scheduled at 3, 6, 12 months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
80
plain balloon angioplasty followed by paclitaxel-coated balloon angioplasty of the target lesion
atherectomy (TurboHawk, ev3) followed by paclitaxel-coated balloon angioplasty of the target lesion
Universitäts-Herzzentrum Freiburg-Bad Krozingen
Bad Krozingen, Germany
primary patency
Primary patency of the target lesion 6 months after index procedure measured by duplex ultrasound (PVR\>2.4) and angiography (core lab analysis).
Time frame: 6 months
target lesion revascularisation (TLR)
Need for target lesion revascularisation from baseline to 6 months after index procedure.
Time frame: 6 and 12 months
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