Long Superficial Femoral Artery Stenting With SuperA Interwoven Nitinol Stents (STELLASUPERA)

Endovascular treatment with stenting is currently used in the treatment of femoro-popliteal lesions. This technique tends to extend to lesions for which the gold standard remains until now the open surgery treatment (lesions TASC C and D).

The primary objective of the study was to evaluate the clinical efficacy at 12 months of the SuperA stent (Abbott) in the treatment of long de novo atherosclerotic lesions TASC C and D in patients with symptomatic peripheral arterial disease. The secondary objectives are to evaluate the clinical effectiveness of the SuperA stent at 24 months, according to clinical, morphological and haemodynamic criteria, the possible influence of calcifications and the quality of life of patients.

The SuperA stent treatment is not specifically provided for by the Protocol but is carried out within the framework of the care. This study is an observationnal study.

Study Overview

• Status: Completed
• Conditions: Atherosclerosis Obliterans
• Intervention / Treatment: Device: Endovascular treatment for PAD during medical care (SuperA stent (Abbott))

Detailed Description

Patient will be recruiting during 1 year. Patient will be followed in the study during 2 years. Pre-operative exams are collected. Patients are asked to give their oral authorization to participate in the study by their surgeon.

Patient can be included up to the next day of the intervention.

Endovascular treatment of femoropopliteal lesion with SuperA stents during medical care:

Intervention will be achieved in operative room, under local anesthesia and sedation or general anesthesia. An angio-CT or an arteriography is necessary to attest the presence for TASC C or D lesion involving the superficial femoral and/or popliteal arteries.

The long femoropopliteal lesion must be pre-dilated during 3 minutes with a balloon of 1mm diameter more than the stent to be implanted.

A control arteriography will be done before the implantation of the stent and at the end of the intervention to assess the success of the procedure.

If needed, endovascular treatment could be realized on the inflow or outflow in the same time.

Patient follow-up :

Patient follow-up is performed at 1, 6, 12 and 24 months. Follow-up will systematically include a clinical evaluation and a duplex scan with the ankle brachial index (ABI).

The x-rays and the quality of life questionnaire will be done at 1, 12 and 24 months.

All clinical surveillance events, complications and re-hospitalizations will be collected.

• Study Type: Observational
• Enrollment (Actual): 335

Contacts and Locations

Study Locations

• France
  • La Roche-sur-Yon, France, 85925
    • CHD Vendée
  • Nantes, France, 44093
    • Nantes CHU

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: Non-Probability Sample

Study Population

The patients included in this study are major patients and have lower limb arteriopathy requiring a therapeutic gesture in the femoro-popliteal segment. The inclusion in this study will be proposed to the patients during the consultation of preoperative vascular surgery or during the hospitalization, until the day after their intervention. The number of subjects planned is 50.

In the case where the patient has bilateral femoropopliteal lesions, the limbs being treated in separate hospitalizations, both members may be treated with SuperA stents. The two members will then be considered independently of each other.

Patients with associated lesions requiring treatment, any artery confused, may be treated at the same operative time if deemed necessary by the surgeon.

Description

Inclusion criteria:

• Age > 18 years,
• Symptomatic PAD, Rutherford 2 to 6
• Atherosclerotic femoropopliteal lesion TASC C or D (on CT scan or arteriography)
• De novo femoropopliteal lesion
• Patient informed of the study and oral authorization collected

Exclusion Criteria:

• Under-age patient
• Patient of age, but under legal guardianship or care
• Potentially pregnant women
• Patients do not understand the French language
• Asymptomatic lesion
• Acute ischemia or acute thrombosis
• Lesion already treated
• No-atherosclerotic disease
• hemostasis disorder
• severe comorbidity with life expectancy less than 2 years
• contraindication of antiplatelet (dual antiplatelet therapy required during at least 2 month post-intervention)
• patient participating in a clinical trial likely to interfer
• Comorbidity or other, according investigator, that may interferer with the conduct of the study
• lesion near to an aneurysm
• Patient follow-up impossible
• Patient refuse to participate

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
patients with femoropopliteal lesion; patients with femoropopliteal lesion - Endovascular treatment for PAD during medical care	Device: Endovascular treatment for PAD during medical care (SuperA stent (Abbott)); Long femoropopliteal stenting with SuperA devices during medical care. The endovascular treatment for PAD will be done during the usual medical treatment of patient. The intervention is not carried out within the framework of the research protocol; Other Names: long femoropopliteal revascularization

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of patient with improvement of at least one category of Rutherford classification	To evaluate the sustained clinical effectiveness of the SuperA stent (Abbott) at 12-month for TASC C and D atherosclerotic femoropopliteal lesions in patients with symptomatic primary artery disease (PAD) (RUTHERFORD 2 to 6). Improvement of at least 1 category of Rutherford classification for claudicants. Healing of a trophic disorder and disappearance of resting pain for patient with critical ischemia	12 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of patient with improvement of at least one category of Rutherford classification	clinical effectiveness of the SuperA stent measurement	24 months
number of patient presenting a major adverse cardiovascular event	clinical effectiveness of the SuperA stent measurement	24 months
number of patient presenting a major adverse limb event	clinical effectiveness of the SuperA stent measurement	24 months
limb salvage rate measurement	clinical effectiveness of the SuperA stent measurement	24 months
rate of Target Lesion Revascularization (TLR)	Effectiveness of the SuperA stent measurement	24 months
rate of Target Extremity Revascularization (TER)	Effectiveness of the SuperA stent measurement	24 months
number of patient with sustained permeability without restenosis > 30% in lack of reintervention	hemodynamic effectiveness of the SuperA stent measurement	24 months
number of patient with sustained permeability without restenosis > 30% after reintervention	hemodynamic effectiveness of the SuperA stent measurement	24 months
variation of the ABI (Ankle systolic pression (mmHg) / brachial systolique pression (mmHg) index) before and after surgery	hemodynamic effectiveness of the SuperA stent measurement (restenosis, thrombosis) and morphologic criteria (stenting length, stent fracture).	24 months
restenosis measurement	hemodynamic effectiveness of the SuperA stent measurement	24 months
thrombosis measurement	hemodynamic effectiveness of the SuperA stent measurement	24 months
stenting length measurement	morphologic criteria of effectiveness of the SuperA stent measurement	24 months
stent fracture measurement	morphologic criteria of effectiveness of the SuperA stent measurement	24 months
quality of life in patients treated with the SuperA stent	EuroQol five dimensions questionnaire (EQ5D-3L)	1 month
quality of life in patients treated with the SuperA stent	EQ5D-3L questionnaire	12 months
quality of life in patients treated with the SuperA stent	EQ5D-3L questionnaire	24months
Assessment of vessel calcification rate	For predictive factors of failure	24months
Assessment of elongation rate of SuperA	For predictive factors of failure	24months
Assessment of stent diameter	For predictive factors of failure	24months
Number of patient presenting cardiovascular comorbidity	For predictive factors of failure	24months
Number of patient presenting a renal dysfunction (creatinine clearance < 60 mL/min and/or dialysis)	For predictive factors of failure	24months
Number of patient treated with anti-platelet therapy	For predictive factors of failure	24months

Collaborators and Investigators

• Sponsor: Nantes University Hospital
• Collaborators: Abbott
• Investigators: Principal Investigator: Yann Goueffic, PU-PH, yann.goueffic@chu-nantes.fr

Study record dates

Study Major Dates

• Study Start: December 1, 2016
• Primary Completion (Actual): April 10, 2018
• Study Completion (Actual): April 10, 2018

Study Registration Dates

• First Submitted: December 21, 2016
• First Submitted That Met QC Criteria: January 11, 2017
• First Posted (Estimate): January 13, 2017

Study Record Updates

• Last Update Posted (Actual): September 9, 2021
• Last Update Submitted That Met QC Criteria: September 8, 2021
• Last Verified: September 1, 2019

More Information

Terms related to this study

• Keywords: interwoven nitinol stent; Peripheral Arterial Disease; femoropopliteal artery; self-expanding-endovascular; TASC C and TASC D
• Additional Relevant MeSH Terms: Cardiovascular Diseases; Vascular Diseases; Arteriosclerosis; Arterial Occlusive Diseases; Atherosclerosis
• Other Study ID Numbers: RC15_0464