Occlusion, Restenosis, Stenosis
Conditions
Keywords
below the knee artery, endovascular, drug coated balloon, critical limb ischemia
Brief summary
Patients with claudication or critical limb ischemia will be treated either with uncoated balloons or paclitaxel coated balloons in order to enhance the vessel patency in stenosed or occluded below the knee arteries
Detailed description
After successful guide wire passage of the below the knee index lesions the patients will either receive a treatment with a conventional uncoated balloon or a balloon coated with paclitaxel. Only patients who require follow-up angiography after 6 months will be included in this study. The primary endpoint (index vessel occluded or still open) is at 6 months - the patients will be also followed for 24 months for clinical endpoints. In addition an MRI is planned at 12 months.
Interventions
PTA with SequentPlease OTW paclitaxel coated balloon catheter
PTA with uncoated balloon for BTK endovascular therapy
Sponsors
Study design
Masking description
drug coated balloon versus uncoated balloon
Intervention model description
The vessel patency (measured by angiography at 6 months) will be compared after patients have been treated either with paclitaxel coated or uncoated balloons (control) in BTK arteries
Eligibility
Inclusion criteria
* \>18 years of age * Chronic stenotic or occlusive atherosclerotic disease of the infrapopliteal arteries * Rutherford 2-5 patients * Patients with ≤ 2 BTK lesions (≥ 70% diameter stenosis) * Lesion length limited to 5-25 cm
Exclusion criteria
* Planned or foreseeable amputation * Previous amputation at the index limb * Index vessel with no run-off to the foot distal to the index lesion * Prior treatment of the index lesion with a drug coated balloon * In-stent restenosis * Life expectancy \<1 year * Known creatinine \>1.4 mg% if patient is not on dialysis * Acute thrombus in the index limb * Aneurysm in the index leg * Known hypersensitivity or contraindication to aspirin, heparin, clopidogrel, abciximab, paclitaxel * Patients with concomitant medical illnesses that require cytostatic or radiation therapy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Occlusion rate of the target lesion at 6 months | 6 +/- 1 months | by digital substraction angiogram or MRI |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| target lesion revascularization | 3, 6, 12 and 24 months | repeat intervention |
Other
| Measure | Time frame | Description |
|---|---|---|
| Wound status | 3, 6, 12 and 24 months | improvement, no change, worsening |
| Walking distance | 3, 6, 12 and 24 months | Evaluation of Rutherford category |
Countries
Austria, Germany