Please select the eligibility criteria that correspond to the clinical trial below.
Title: Evaluation of the Zilver PTX Drug-Eluting Stent in the Above-the-Knee Femoropopliteal Artery
Brief Summary: The Zilver® PTX™ Drug Eluting Vascular Stent is indicated for the treatment of symptomatic vascular disease of the above-the-knee femoropopliteal artery (ranging from 4 mm to 9 mm in reference vessel diameter) for lesions up to 7 cm long. The clinical trial is stratified by lesion length. The trial will be conducted in 2 phases, with Phase 1 enrolling patients with lesions less than 7 cm long. Phase 2 of the trial will include longer lesions (up to 14 cm long) and will be initiated upon approval by the Food and Drug Administration (FDA).


Options:
A: Inclusion Criteria:

* Symptomatic leg ischemia requiring treatment of the superficial femoral or popliteal arteries
* Rutherford clinical category 2, 3 or 4
* Male or non-pregnant female at least 18 years

Exclusion Criteria:

* Co-existing clinically significant aneurismal disease of the abdominal aorta, iliac or popliteal arteries
* Significant gastrointestinal bleeding or any coagulopathy that would contraindicate the use of anti-platelet therapy
* Known intolerance of study medications, paclitaxel or contrast agent
* Active participation in another investigational device or drug study
B: Inclusion Criteria:

* Patient has signed and dated the informed consent.
* Patient has up to 2 documented stenotic or occluded atherosclerotic lesions (up ro 14 cm long) of the above-the-knee femoropopliteal artery, up to one in each limb, that meet all of the inclusion criteria and none of the exclusion criteria.
* Patient has a de novo or restenotic lesion(s) with \>50% stenosis documented angiographically and no prior stent in the target lesion.
* Patient has symptoms of peripheral arterial disease classified as Rutherford Category 2 or greater.
* Patient has a resting Ankle Brachial Index (ABI) \<0.9 or an abnormal exercise ABI if resting ABI is normal. Patient with incompressible arteries (ABI \>1.2) must have a Toe Brachial Index (TBI) \<0.8.
* Patient agrees to return for a clinical status assessment and duplex ultrasound at 6 months, 12 months, and at 2, 3, 4, and 5 years.
* Patient agrees to return for x-rays at 6 and 12 months.
* Patient agrees to return for angiography at 12 months.
* Patient agrees to be contacted by telephone at 1, 3, 9, and 18 months to assess clinical status.

Exclusion Criteria:

* Patient is pregnant or breast-feeding.
* Patient is simultaneously participating in another investigational drug or device study.
* Patient has significant stenosis or occlusion of inflow tract not successfully treated before this procedure.
* Patient has any planned surgical or interventional procedure within 30 days after the study procedure.
* Patient has had previous stenting of target vessel.
* Patient in whom antiplatelet and/or anticoagulant therapy is contraindicated.
* Patient has known hypersensitivity or contraindication to aspirin, antiplatelet medication, contrast dye, paclitaxel or nitinol and, in the opinion of the investigator, cannot be adequately premedicated.
* Patient lacks at least one patent vessel of runoff with \<50% stenosis throughout its course.
* Patient has untreated angiographically-evident thrombus in the target lesion.

\[Additional criteria may apply.\]
C: Inclusion Criteria:

* Written informed consent approved by the IRB.
* ≥ 18 years old.
* Lifestyle-limiting claudication defined as: Rutherford Cat. 1-3.
* Target lesion(s) is de-novo or restenotic and located within the native SFA and/or proximal popliteal artery
* Angiographic evidence of ≥ 50% stenosis or occlusion
* Target RVD is ≥ 4.0 mm and ≤ 7.0 mm
* Target total length of the lesion or series of lesions is ≤ 150 mm.
* Angiographic evidence of at least one vessel runoff to the foot.

Exclusion Criteria:

* Unable to conform to the study protocol procedures and visits.
* Lifestyle-limiting claudication/CLI (Rutherford Cat. 4-6)
* Patients who are pregnant or planning to become pregnant during the clinical investigation
* Contraindication to study related medications, Ni, Ti, Ta, or other media that is not amenable to pretreatment.
* History of bleeding diatheses or coagulopathy.
* Concomitant renal failure with a creatinine of \> 2.0 mg/dL.
* Concomitant hepatic insufficiency, thrombophlebitis, uremia, SLE, or DVT at the time of the study procedure.
* Receiving dialysis or immunosuppressive therapy.
* Suffered a hemorrhagic stroke ≤ 6 mo prior to the study procedure.
* Prior peripheral vascular bypass surgery involving the target limb.
* Target vessel has been previously stented.
* Target lesion(s) received angioplasty intervention ≤ 6 mo. prior
* Any non-iliac percutaneous intervention(s) \< 7 days prior.
* Currently participating in an investigational drug/device study.
* Limited life expectancy of less than two years.
* Extensive PVD that precludes safe insertion of an sheath.
* Target lesion(s) is located within an aneurysm or associated with an aneurysm in the vessel segment either proximal or distal to the target lesion(s).
* Unresolved thrombus within the target vessel.
* Poor inflow which would not support a vascular bypass graft.
* Diagnosed with septicemia at the time of the study procedure.
* Additional percutaneous interventional procedures (cardiac/peripheral) planned ≤ 30 days following procedure.
D: Inclusion Criteria:

* Angiographically proven coronary artery disease
* Angina II-IV° following the Canadian Cardiovascular Society Classification criteria and/or reproducible ischemia in the target area by ECG or scintigraphy
* The patient signing an informed written consent

From the following angiographic criteria, lesions must fulfil all first degree criteria and at least one second-degree criterion to be eligible for inclusion.

First degree criteria

* De-novo lesion in a native coronary artery
* Target reference vessel diameter between 2.5 and 4.0 mm by visual estimation
* Luminal diameter reduction of 70-99% by visual estimation
* Moderate to severe calcification of the target lesion (clearly defined)

Second degree criteria

* Ostial location
* Bifurcational lesions
* Long lesions (≥ 15mm)

Exclusion Criteria:

* Myocardial infarction within 4 weeks
* Left ventricular ejection fraction \< 30%
* Limited long term prognosis due to other conditions

Angiographic exclusion criteria:

* Unprotected left main lesions
* Coronary artery bypass graft stenoses
* In-stent restenoses
* Chronic total occlusions
* Target vessel thrombus
* Target vessel dissection

Answer: B