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CompletedNCT00180505Updated Feb 24, 2010

ASSESS Study: Evaluation of ABSOLUTE™ Stent System for Occluded Arteries

A Phase 4 interventional study of ABSOLUTE™: Self-Expandable Peripheral Nitinol Stent in Peripheral Vascular Diseases, sponsored by Abbott Medical Devices. Completed at 13 sites in 7 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2010-02-24.

Sponsored by Abbott Medical Devices · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
120
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to investigate the performance of the ABSOLUTE™ .035 peripheral self-expanding stent system in preventing restenosis of occluded or stenotic superficial femoral or proximal popliteal arteries.

Read the detailed description

The treatment of stenosis in superficial femoral arteries and/or proximal popliteal arteries with stenting is associated with high restenosis rates, especially with the first generation stents (stainless steel). Currently, self-expandable nitinol stents are commercialized which lead to higher primary patency rates as compared to the first generation stents, even in longer lesions. However, until now most data available are retrospective and uni-center. The ASSESS study is a prospective multi-center study investigating the performance (restenosis rate, patency rates) of the ABSOLUTE™. 035 peripheral self-expandable stent in longer lesions (lesion length from 4.00 mm to 200.00 mm).

Moreover, literature shows stent fracture in nitinol stents, with a possible clinical relationship. For this reason, the ASSESS study will analyze the stent fractures of the ABSOLUTE™ stent, and a possible relationship between stent fracture and restenosis.

02

Conditions studied

  • Peripheral Vascular Diseases

Keywords

  • Peripheral Artery Disease
  • Restenosis Rate
  • Patency Rates
  • Self-Expandable Nitinol Stents
  • Stent Fractures
03

In context

Vascular Diseases

1,027 studies on the registry are indexed under Vascular Diseases; 167 are open to participants now.

This study's planned enrollment of 120 is above the median of 78 across 639 interventional studies indexed under Vascular Diseases.

Browse Vascular Diseases studies →

Lead sponsor

Abbott Medical Devices is the lead sponsor of 525 studies on the registry; 35 are open to participants now.

Of its 52 completed or terminated interventional studies of FDA-regulated products, 43 (83%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • De novo lesion of the superficial femoral artery (SFA) or proximal popliteal artery within the following parameters:

    • 10 mm distal to the origin of the profunda femoris (= 10 mm from the femoral bifurcation in the SFA) and
    • 20 mm from the proximal margin of the intercondylar fossa.
  • Patients must have symptomatic leg ischemia, requiring treatment of the superficial femoral/proximal popliteal vessel
  • Target vessel reference diameter visually estimated to be > 4.0 mm and \< 7.0 mm
  • Target lesion length visually estimated to be > 40 mm and \< 200 mm
  • If the patient has a contralateral SFA or contralateral proximal popliteal lesion, this lesion can be treated as a non-target lesion. The time and way of treatment of the non-target lesion will be left up to the discretion of the investigator
  • At least one-vessel run-off to the foot confirmed by baseline angiography
  • Patent common iliac artery, common femoral artery and profunda confirmed by baseline angiography. The patent common iliac artery can be obtained during the index procedure by a successful treatment prior to the treatment of the target lesion. Successful treatment being defined as attainment of final residual diameter stenosis of \< 30% without death, stroke, bleeding requiring > 2 units transfusion, or any other complication which was device or procedure related.
  • Patient is acceptable candidate for femoral-popliteal artery bypass surgery

Exclusion criteria

Exclusion Criteria:

  • Previous ipsilateral femoro-popliteal or femoro-tibial surgery
  • Presence of a stent in the target vessel
  • Prescheduled staged procedures of multiple lesions within the ipsilateral iliac or ipsilateral popliteal arteries within 30 days after the index procedure
  • Co-existing aneurysmal disease of the abdominal aorta or iliac or popliteal arteries
  • Acute thrombophlebitis or deep vein thrombus
  • Any immunosuppressive disorders, groin infection, or acute systemic infection due to any cause or any viral or bacterial infection
  • Significant gastrointestinal (GI) bleed within the past month that would contraindicate the use of anti-platelet therapy
  • Hemodynamic instability
  • Target lesion is restenotic from previous intervention
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
120 participants (estimated)

Study arms

  • Other
    1

    The purpose of the ASSESS Registry is to investigate the performance of the ABSOLUTE™ .035 Peripheral Self-Expanding Stent System (ABSOLUTE™ Stent) in preventing restenosis of occluded or stenotic superficial femoral or proximal popliteal arteries.

    Device: ABSOLUTE™: Self-Expandable Peripheral Nitinol Stent

Interventions

  • DeviceABSOLUTE™: Self-Expandable Peripheral Nitinol Stent

    A prospective, non-randomized, multi-center study to investigate the performance of the ABSOLUTE™ .035 Peripheral Self-Expanding Stent System (ABSOLUTE™ Stent) in preventing restenosis of occluded or stenotic superficial femoral or proximal popliteal arteries. Follow up at 30, 180, 270, 365 days and 2 years.

06

What researchers measure

Primary outcomes

  1. Restenosis rate (diameter stenosis ≥ 50% as determined by Duplex ultrasound).

    Time frame: At 180 days

Secondary outcomes

  1. Clinically driven target lesion revascularization

    Time frame: at 12 and 24 month follow-up

  2. Target lesion primary, primary assisted and secondary patency rates

    Time frame: at 6, 12 and 24 month follow-up

  3. Major complications

    Time frame: at 1, 6, 12 and 24 month follow-up

  4. Angiographic binary restenosis rate in a subset of patients

    Time frame: at 9 month follow-up

  5. Device and procedure success

    Time frame: Acute

  6. Vascular and bleeding complications (local and puncture site)

    Time frame: 1, 6, 12, 24 months

  7. Stent fracture determined by biplane X-ray

    Time frame: at 12 month follow-up

  8. Restenosis rate at 365 days, and 2 years (diameter stenosis ≥ 50% as determined by Duplex ultrasound)

    Time frame: 365 days and 2 years

07

Study locations

13 sites
  • Landeskrankenhaus Klagenfurt
    Klagenfurt, 9026, Austria
  • Allgemeines Krankenhaus der Stadt Wien (AKH Wien)
    Wien, 1090, Austria
  • CHR de Namur
    Namur, 5000, Belgium
  • Polyclinique Louis Pasteur
    Essey les Nancy, 54270, France
  • Hôpital Pontchaillou- CHU
    Rennes Cedex, 35033, France
  • Herzzentrum Bad Krozingen
    Bad Krozingen, 79189, Germany
  • Universitäres Herz & Gefässzentrum Hamburg
    Hamburg, 22527, Germany
  • Herzzentrum Leipzig
    Leipzig, 04289, Germany
  • Papageorgiou Hospital
    Thessaloniki, 57001, Greece
  • Nuovo Ospedale Civile Sant' Agostino
    Baggiovara (Modena), 41100, Italy
  • Casa di Cura Montevergine
    Mercogliano, 83013, Italy
  • Policlinico San Matteo
    Pavia, 27100, Italy
  • Hospital de Donostia
    Donostia-San Sebastian, 20014, Spain
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 24, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00180505
Lead sponsor
Abbott Medical Devices
First posted
Sep 16, 2005
Start date
Mar 2005
Primary completion
Mar 2006
Completion
Oct 2009
Last update
Feb 24, 2010

Study contacts

Thomas Zeller, M.D.
principal investigator · Herzzentrum Bad Krozingen, Germany

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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