Investigational Device Exemption Study to Determine the Safety and Efficacy of the Astron and Pulsar Stents

Inclusion Criteria

To support the objectives of this study, the following initial inclusion criteria must be met for a subject to be enrolled and considered for the index procedure:

• Age ≥ 18 years
• Willingness to comply with study follow-up requirements
• Candidate for PTA
• Life-style limiting claudication or rest pain with an ABI ≤ 0.9 (resting or exercise). Thigh brachial index (TBI) may be used / performed if ABI is inadequate.
• Written informed consent

For a subject to receive an investigational stent, the following procedure-related criteria must be met:

• One de novo, restenotic or occluded lesion representing a femoro-popliteal or iliac indication OR Two de novo, restenotic or occluded lesions representing one femoro-popliteal indication and one iliac indication on contralateral limbs - (i.e. one lesion per limb)
• Lesions may be one solid lesion or a series of multiple, smaller lesions to be treated as one lesion
• Subjects with bilateral, SFA/PPA disease (i.e. one SFA/PPA lesion per limb) are eligible for enrollment into the study. The target lesion will be selected at the investigator's discretion based on study eligibility criteria. The contralateral SFA/PPA intervention may be performed at the time of the index procedure (prior to treatment of study lesion); however, the use of an investigational treatment is prohibited. If the contralateral SFA/PPA intervention is not performed at the time of the index procedure, the intervention must be performed at least 30 days after the index procedure. The use of an investigational treatment for the contralateral intervention is prohibited.
• Subjects with bilateral, iliac disease (i.e. one iliac lesion per limb) are eligible for enrollment into the study. The target lesion will be selected at the investigator's discretion based on study eligibility criteria. The contralateral iliac intervention may be performed at the time of the index procedure; however, the use of an investigational treatment is prohibited. If the contralateral iliac intervention is not performed at the time of the index procedure, the intervention must be performed at least 30 days after the index procedure. The use of an investigational treatment for the subsequent contralateral intervention is also prohibited.
• Femoro-popliteal lesions must be located at least 1 cm distal to the profunda femoris artery and at least 3 cm above the knee joint (radiographic joint space)
• Iliac lesions must be located only in either the common or external iliac artery
• Lesions must be treatable with a maximum of two stents
• Angiographic evidence of ≥ 70% stenosis or occlusion (operator visual assessment)
• Lesion length ≤ 190 mm (if de novo or restenotic) or ≤ 100 mm (if occluded)
• Target vessel reference diameter: 2.5 to 6 mm (SFA/PPA) or 6 to 9 mm (iliac arteries) by visual estimate
• Angiographic evidence of patent SFA and PPA (iliac indication) and angiographic evidence of at least one distal vessel runoff to the foot (both femoro-popliteal and iliac indications). Patent is defined as 70%) or occlusion of an ipsilateral, inflow artery (e.g. aortoiliac, common femoral) must be successfully treated (use of investigational treatment prohibited) just prior to treatment of the target lesion. Successful treatment is defined as no complications and less than 30% residual stenosis following intervention.

Exclusion Criteria

To support the objectives of this study, the following initial exclusion criteria must not be present for a subject to be enrolled:

• Subjects pregnant or planning to become pregnant during the course of the study
• Life expectancy of less than one year
• Rutherford-Becker category 5 or 6. Subjects with ulcers caused by venous disease may be enrolled in the study.
• Previously stented lesion(s) in the target vessel
• Target lesion(s) received previous treatment within 30 days prior to enrollment
• Prior peripheral vascular bypass surgery involving the target limb(s)
• Thrombophlebitis or deep