Misago Iliac Study (MISAGO ILIAC)

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

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.

Study Overview

• Status: Completed
• Conditions: Vascular Lesions
• Intervention / Treatment: Device: Misago (stent placement)

• Study Type: Observational
• Enrollment (Anticipated): 100

Contacts and Locations

Study Locations

• Belgium
  • Antwerp
    • Bonheiden, Antwerp, Belgium, 2820
      • Imelda Hospital
  • East-Flanders
    • Dendermonde, East-Flanders, Belgium, 9200
      • AZ Sint-Blasius
    • Gent, East-Flanders, Belgium, 9000
      • UZ Gent
• Germany
  • Nordrhein-Westfalen
    • Münster, Nordrhein-Westfalen, Germany, 48145
      • St Franziskus Hospital
  • Sachsen
    • Leipzig, Sachsen, Germany, 04289
      • Herzzentrum Leipzig

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Patients with peripheral arterial disease, Rutherford 2 to 5.

Description

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.

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Iliac lesions TASC A or B; All lesion types belonging to the iliac TASC A or B.	Device: Misago (stent placement); Misago iliac stent; Other Names: Misago iliac stent

What is the study measuring?

Primary Outcome Measures

Outcome Measure	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	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

Collaborators and Investigators

• Sponsor: Flanders Medical Research Program
• Investigators: Study Director: Vladimir Borovicanin, MD, Terumo Europe NV

Study record dates

Study Major Dates

• Study Start: January 1, 2010
• Primary Completion (Actual): October 1, 2012
• Study Completion (Actual): October 1, 2013

Study Registration Dates

• First Submitted: November 18, 2009
• First Submitted That Met QC Criteria: November 18, 2009
• First Posted (Estimate): November 19, 2009

Study Record Updates

• Last Update Posted (Estimate): August 6, 2014
• Last Update Submitted That Met QC Criteria: August 5, 2014
• Last Verified: August 1, 2014

More Information

Terms related to this study

• Keywords: To obtain the first iliac long-term results for a patient cohort treated with nitinol stents only
• Other Study ID Numbers: FMRP-007