Misago Iliac Study

Study Overview
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Brief Summary
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The objective of this clinical study is to evaluate, in a controlled setting, the long-term (up to 24 months) outcome of the self-expanding nitinol rapid-exchange Misago (Terumo) stent in TASC A and B iliac lesions.

Official Title
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Physician Initiated Multi-center Belgian-German Trial Investigating the Terumo Misago Stent in the Treatment of TASC A & B Iliac Lesions

Conditions
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Vascular Lesions

Intervention / Treatment
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* Device: Misago (stent placement)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient presenting with a stenotic or occlusive lesion at the iliac arteries suitable for stenting (on indication for primary stenting, based on the discretion of the investigator) Patient presenting a score from 2 to 5 following Rutherford classification Patient is willing to comply with specified follow-up evaluations at the specified times for the duration of the study Patient is >18 years old Patient (or their legal representative) understands the nature of the procedure and provides written informed consent, prior to enrolment in the study Patient is eligible for treatment with the Misago (Terumo) The target lesion is either a modified TASC-II class A or B lesion with one of the listed specifications: Type A lesions Unilateral or bilateral stenoses of the Common Iliac Artery Unilateral or bilateral single short (≤3 cm) stenosis of the External Iliac Artery Type B lesions Unilateral Common Iliac Artery occlusion Single or multiple stenosis totaling 3-10 cm involving the External Iliac Artery not extending into the Common Femoral Artery Unilateral External Iliac Artery occlusion not involving the origins of Internal Iliac Artery or Common Iliac Artery The target lesion has angiographic evidence of stenosis or restenosis > 50% or occlusion which can be passed with standard guidewire manipulation There is angiographic evidence of a patent Common an Deep Femoral Artery Exclusion Criteria: The target lesion is either a modified TASC-II class B lesion with aortic lesion involvement: Short (≤3 cm) stenosis of infrarenal aorta The target lesion is either a modified TASC-II class C or D lesion with aortic lesion involvement: Presence of aneurysm at the level of the iliac arteries Previously implanted stent(s) at the same lesion site Reference segment diameter is not suitable for available stent design Untreatable lesion located at the distal outflow arteries Use of alternative therapy (e.g. atherectomy, cutting balloon, laser, radiation therapy) as part of the index procedure Patients refusing treatment Patients for whom antiplatelet therapy, anticoagulants or thrombolytic drugs are contraindicated Patients who exhibit persistent acute intraluminal thrombus of the proposed lesion site Perforation at the angioplasty site evidenced by extravasation of contrast medium Patients with a history of prior life-threatening contrast medium reaction Patients with known hypersensitivity to nickel-titanium Patients with uncorrected bleeding disorders Female patient with child bearing potential not taking adequate contraceptives or currently breastfeeding Life expectancy of less than twelve months Any planned surgical intervention/procedure within 30 days of the study procedure Any patient considered to be hemodynamically unstable at onset of procedure Patient is currently participating in another investigational drug or device study that has not completed the entire follow up period.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Iliac lesions TASC A or B<br>All lesion types belonging to the iliac TASC A or B. | Device: Misago (stent placement)<br>* Misago iliac stent<br>* Other names: Misago iliac stent;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Primary patency, defined as a target lesion without a hemodynamically significant stenosis on duplex ultrasound (>50%, systolic velocity ratio no greater than 2.0) and without Target Lesion Revascularization (TLR) within 12 months. |  | 12 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Technical success, defined as the ability to achieve final residual angiographic stenosis no greater than 30%. |  | procedural | 
| Patients that present without a hemodynamically significant stenosis at the target area on duplex ultrasound (>50%, systolic velocity ratio no greater than 2.0) and without prior TLR are defined as being primary patent at the given follow-up. |  | 1 & 24 months | 
| Clinical success, defined as an improvement of Rutherford classification of one class or more as compared to the pre-procedure Rutherford classification |  | 1, 12 & 24 months | 
| Serious adverse events |  | up to 24 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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To obtain the first iliac long-term results for a patient cohort treated with nitinol stents only