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Not yet recruitingNCT05082532Updated Oct 19, 2021

Efficacy and Safety of Interwoven Self-Expandable Nitinol Stent for Femropopliteal Arterial Occlusive Diseases

An interventional study of Interwoven supera stent (IW; Supera Veritas®; Abbott Vascular, Santa Clara, CA, USA) . in Femoropopliteal Occlusive Disease, sponsored by Assiut University. Not yet recruiting at 1 site in Egypt. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-10-19.

Sponsored by Assiut University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Sep 2025, 1 year 1 month ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

Interwoven self-expandable stent is a recent endovascular method to treat complex femoropopliteal lesions trying to reach a reasonable patency and durability like in surgical bypass.

Read the detailed description

Stenting of the femoro-popliteal segment is indicated in case of elastic recoil, flow-limiting dissection, insufficient per- cutaneous transluminal angioplasty (PTA) or long lesion length. However, in-stent restenosis (ISR) or fracture after endovascular treatment remains a serious concern, especially for lesions of a long segment or near the knee joint. Besides the current availability of covered or drug-coated stents, there is the self-expandable bare-metal Nitinol stent which rapidly evolved during the last decade from closed-cell to open-cell and, more recently, to interwoven stents. interwoven nitinol stent design of fully connected structures facilitates a continuous but a traumatic synergy between the stent and vessel wall and hence enables axial compliance. Investigators here conduct a prospective study to evaluate the efficacy and safety of self- expandable nitinol stent especially interwoven supera stent (IW; Supera Veritas®; Abbott Vascular, Santa Clara, CA, USA) in femoropopliteal complex occlusive lesions.

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Conditions studied

  • Femoropopliteal Occlusive Disease
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In context

Arterial Occlusive Diseases

296 studies on the registry are indexed under Arterial Occlusive Diseases; 46 are open to participants now.

This study's planned enrollment of 60 is below the median of 121 across 200 interventional studies indexed under Arterial Occlusive Diseases.

Browse Arterial Occlusive Diseases studies →

Lead sponsor

Assiut University is the lead sponsor of 4,901 studies on the registry; 2,098 are open to participants now.

Of its 13 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

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Who can participate

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

Inclusion criteria

  • Patients with critical limb ischemia(grade 4,5\&6 Rutherford classification) and patients with disabling claudications which interferes with routine activities (grade 3 Rutherford classification).
  • Patients with chronic total occlusion(CTO) of femoropopliteal segment which is equal or beyond 10 centimeters length.
  • Patients with recoil after transluminal angioplasty or occlusion in previously deployed stent.
  • If the lesion extends to popliteal artey against knee flexion.

Exclusion criteria

Exclusion criteria:

  • Pediatric patients.
  • Patients with isolated infra-popliteal occlusion.
  • Patients with popliteal blind segment with bad runoff.
  • Patients with acute thrombotic occlusions.
  • Patients with previous bypass surgery in affected limb.
  • Patients with aneurysmal lesion in the affected limb.
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    patients with critical and subcritical femoropopliteal arterial occlusions

    patients presented with chronic ischemia in rest pain stage or ulcerative and gangrenous toes and by investigations long chronic total occlusion of femoropopliteal segment was documented may need stenting of the diseased segment especially if the lesion recoils after previous angioplasty. Nitinol interwoven stent has a unique design that achieves adherence to vessel wall and also malleability with the vessel and surrounding muscle motion so investigators predict more extended patency time with this interventional option and want to investigate this prediction using a scientific experimental pathway.

    Other: Interwoven supera stent (IW; Supera Veritas®; Abbott Vascular, Santa Clara, CA, USA) .

Interventions

  • OtherInterwoven supera stent (IW; Supera Veritas®; Abbott Vascular, Santa Clara, CA, USA) .

    we here conduct a prospective study to evaluate the efficacy and safety of self- expandable nitinol stent especially interwoven supera stent (IW; Supera Veritas®; Abbott Vascular, Santa Clara, CA, USA) in femoropoliteal complex occlusive lesions.

06

What researchers measure

Primary outcomes

  1. peak systolic velocity in centimeters per second (cm/sec) through the deployed stent in serial duplex imaging

    Crossing the lesion and deploying the stent without residual stenosis or degree of stenosis is less than 30% and assess the time the stent remains patent without re interventions. the outcome will be measured on clinical aspect and imaging aspect. Clinically ,investigators will trace the ankle brachial index (ankle systolic pressure relative to systemic systolic pressure), wound healing progress through cascade measuring of ulcer diameter in centimeters till complete healing and pain improvement depending on visual analogue score from 0 to 10.Imaging follow up, investigators will trace diseased segment diameters after intervention in millimeters and peak systolic velocity through the stent in centimeters per second.

    Time frame: 4 years

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Study locations

1 site
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References and documents

Publications

  • Mewissen MW. Primary nitinol stenting for femoropopliteal disease. J Endovasc Ther. 2009 Apr;16(2 Suppl 2):II63-81. doi: 10.1583/08-2658.1. PubMed 19624075 ↗

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 19, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05082532
Lead sponsor
Assiut University
Responsible party
Ahmed Naser Hussein (principal investigator, Assiut University) — Principal investigator
First posted
Oct 19, 2021
Start date
Oct 2021 (estimated)
Primary completion
Sep 2025 (estimated)
Completion
Sep 2025 (estimated)
Last update
Oct 19, 2021

Study contacts

ahmed A hussein, master of vascular surgery
Contact
ahmednaserhussein7@yahoo.com
+20-088-0291608774

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.

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