First-in-man Study of Titanium-Nitride Coated Woven-nitinol Peripheral Arterial Stent

First-in-man Study to Assess Efficacy and Safety of a Novel Titanium-Nitride Coated Woven-nitinol Peripheral Arterial Stent

The GoldenFlow (Lifetech Scientific, Shenzhen, China) is a novel woven-nitinol stent designed to have superior radial strength, flexibility and durability compared to standard nitinol stents for femoropopliteal lesions. This is a first-in-man study to evaluate the safety and efficacy of GoldenFlow woven-nitinol stent for intraluminal treatment of peripheral vascular disease in the femoropopliteal arteries.

Study Overview

• Status: Completed
• Conditions: Peripheral Arterial Disease
• Intervention / Treatment: Device: GoldenFlow Stent

Detailed Description

Endovascular treatment in femoropopliteal segment is the most challenging area due to restenosis and stent fracture after endovascular treatment. The titanium-nitride coated woven-nitinol peripheral arterial stent system (GoldenFlow, Lifetech Science, Shenzhen, China) is designed to have superior radial strength, flexibility and durability to withstand the compression, torsion, bending, lengthening and shortening found in femoropopliteal disease. Compared to another commercially available woven-nitinol stent, the GoldenFlow stent has the potential advantage to be repositionable and is less likely to lengthen during deployment. This is a first-in-man study is to evaluate the safety and efficacy of GoldenFlow woven-nitinol stent for intraluminal treatment of peripheral vascular disease in de-novo femoropopliteal lesions.

• Study Type: Interventional
• Enrollment (Actual): 5
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Hong Kong
  • New Territories
    • Shatin, New Territories, Hong Kong
      • Prince of Wales Hospital

Participation Criteria

Eligibility Criteria

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

Description

Inclusion Criteria:

1. Age ≥18 years
2. Symptomatic leg ischemia (Rutherford class 2 to 4)
3. Ankle Brachial Index <0.9
4. De novo femoropopliteal stenosis (≥70%) or occlusion
5. Reference diameter 4 and 7mm
6. Lesion length 4 to 15cm
7. At least one patent (<50% stenosis) infrapopliteal run-off vessel
8. The lesion(s) can be successfully crossed with a guidewire and dilated

9. Patients with bilateral femoropopliteal disease is eligible for enrollment into the study

   - Staged contralateral limb procedure can be performed >30 days after index procedure

10. Able to provide written informed consent and willing to comply with specified follow-up evaluation schedule

Exclusion Criteria:

1. Tissue loss or gangrene (Rutherford class 5 and 6)
2. Previous bypass surgery or stenting in target vessel
3. Untreated aortoiliac or common femoral artery inflow disease >50%
4. Intervention of ipsilateral lesions during the index procedure or staged intervention within 30 days after index procedure

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: GoldenFlow stent; Titanium nitrite coated woven nitinol stent	Device: GoldenFlow Stent; The GoldenFlow stent (Lifetech Science, Shenzhen, China) is a TiN coated self-expanding stent consisting of interwoven nitinol wires braided in a closed cell design. Stents used in this study ranged from 4-12mm in diameter and 20-160mm in length.; Other Names: Titanium-nitride coated GoldenFlow woven-nitinol stent

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
In-stent binary restenosis of the treated segment	Determined by Duplex ultrasound	at 6 month

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Technical Success	defined as residual diameter stenosis <30%	intraoperation
Safety Outcomes as assessed by composite of death, index limb amputation and ischemic driven target vessel revacularization	Composite of death, index limb amputation and ischemic driven target vessel revacularization at 30 days	30 days
Clinically driven target vessel revascularization		6 months
Stent fracture	defined by plain x-ray	6 months

Collaborators and Investigators

• Sponsor: Chinese University of Hong Kong
• Collaborators: Lifetech Scientific (Shenzhen) Co., Ltd.
• Investigators: Principal Investigator: Bryan Ping Yen Yan, Chinese University of Hong Kong

Publications and helpful links

General Publications

• Dormandy JA, Rutherford RB. Management of peripheral arterial disease (PAD). TASC Working Group. TransAtlantic Inter-Society Consensus (TASC). J Vasc Surg. 2000 Jan;31(1 Pt 2):S1-S296. No abstract available.
• Johnston KW. Femoral and popliteal arteries: reanalysis of results of balloon angioplasty. Radiology. 1992 Jun;183(3):767-71. doi: 10.1148/radiology.183.3.1294068.
• Minar E, Pokrajac B, Maca T, Ahmadi R, Fellner C, Mittlbock M, Seitz W, Wolfram R, Potter R. Endovascular brachytherapy for prophylaxis of restenosis after femoropopliteal angioplasty : results of a prospective randomized study. Circulation. 2000 Nov 28;102(22):2694-9. doi: 10.1161/01.cir.102.22.2694.
• Capek P, McLean GK, Berkowitz HD. Femoropopliteal angioplasty. Factors influencing long-term success. Circulation. 1991 Feb;83(2 Suppl):I70-80.
• Henry M, Amor M, Beyar R, Henry I, Porte JM, Mentre B, Tricoche O, Ethevenot G. Clinical experience with a new nitinol self-expanding stent in peripheral arteries. J Endovasc Surg. 1996 Nov;3(4):369-79. doi: 10.1583/1074-6218(1996)0032.0.CO;2.
• Cejna M, Thurnher S, Illiasch H, Horvath W, Waldenberger P, Hornik K, Lammer J. PTA versus Palmaz stent placement in femoropopliteal artery obstructions: a multicenter prospective randomized study. J Vasc Interv Radiol. 2001 Jan;12(1):23-31. doi: 10.1016/s1051-0443(07)61397-9.
• Vroegindeweij D, Vos LD, Tielbeek AV, Buth J, vd Bosch HC. Balloon angioplasty combined with primary stenting versus balloon angioplasty alone in femoropopliteal obstructions: A comparative randomized study. Cardiovasc Intervent Radiol. 1997 Nov-Dec;20(6):420-5. doi: 10.1007/s002709900186.
• Grimm J, Muller-Hulsbeck S, Jahnke T, Hilbert C, Brossmann J, Heller M. Randomized study to compare PTA alone versus PTA with Palmaz stent placement for femoropopliteal lesions. J Vasc Interv Radiol. 2001 Aug;12(8):935-42. doi: 10.1016/s1051-0443(07)61572-3.
• Zdanowski Z, Albrechtsson U, Lundin A, Jonung T, Ribbe E, Thorne J, Norgren L. Percutaneous transluminal angioplasty with or without stenting for femoropopliteal occlusions? A randomized controlled study. Int Angiol. 1999 Dec;18(4):251-5.
• Becquemin JP, Favre JP, Marzelle J, Nemoz C, Corsin C, Leizorovicz A. Systematic versus selective stent placement after superficial femoral artery balloon angioplasty: a multicenter prospective randomized study. J Vasc Surg. 2003 Mar;37(3):487-94. doi: 10.1067/mva.2003.155.
• Schillinger M, Minar E. Endovascular stent implantation for treatment of peripheral artery disease. Eur J Clin Invest. 2007 Mar;37(3):165-70. doi: 10.1111/j.1365-2362.2007.01774.x.
• Tetteroo E, van der Graaf Y, Bosch JL, van Engelen AD, Hunink MG, Eikelboom BC, Mali WP. Randomised comparison of primary stent placement versus primary angioplasty followed by selective stent placement in patients with iliac-artery occlusive disease. Dutch Iliac Stent Trial Study Group. Lancet. 1998 Apr 18;351(9110):1153-9. doi: 10.1016/s0140-6736(97)09508-1.

Study record dates

Study Major Dates

• Study Start: October 1, 2015
• Primary Completion (Actual): November 1, 2017
• Study Completion (Actual): May 1, 2018

Study Registration Dates

• First Submitted: May 11, 2015
• First Submitted That Met QC Criteria: July 15, 2015
• First Posted (Estimate): July 16, 2015

Study Record Updates

• Last Update Posted (Actual): July 29, 2019
• Last Update Submitted That Met QC Criteria: July 26, 2019
• Last Verified: July 1, 2019

More Information

Terms related to this study

• Keywords: restenosis; femoropopliteal disease
• Additional Relevant MeSH Terms: Cardiovascular Diseases; Vascular Diseases; Arteriosclerosis; Arterial Occlusive Diseases; Atherosclerosis; Peripheral Arterial Disease; Peripheral Vascular Diseases
• Other Study ID Numbers: Not_applicable