Investigating the Safety and Efficacy of the Treatment With Luminor DCB and Angiolite DES of iVascular in TASC C and D Tibial Occlusive Disease in Patients With Critical Limb Ischemia (MERLION)

Physician Initiated, Prospective, Non-Randomized Multi-center Trial, Investigating the Safety and Efficacy of the Treatment With Luminor DCB and Angiolite DES of iVascular in TASC C and D Tibial Occlusive Disease in Patients With Critical Limb Ischemia

This study aims to evaluate the 12 month outcome of the mono- or combination therapy with iVascular Luminor DCB and Angiolite DES for treatment of TASC C and TASC D long tibial occlusive disease, presenting with critical limb ischemia.

Study Overview

• Status: Completed
• Conditions: Critical Limb Ischemia
• Intervention / Treatment: Device: Luminor DCB and Angiolite DES

Detailed Description

Extensive arterial occlusions significantly reduces distal arterial perfusion, and may eventually lead to Critical Limb Ischemia (CLI). The pathology gives rise to symptoms such as ischemic pain, slow healing wounds at lower extremity and gangrene. It places patients with multi-segment occlusion at high risks of amputations and mortality.

The treatment methods for such long occlusive lesions are limited. Traditionally, the standard of care would be surgical revascularization. This is because lesion length have been identified in several studies as an independent risk factor for the development of restenosis after angioplasty and/or stenting. However, thanks to recent advances in endovascular techniques, such as the utilization of subintimal technique for crossing long segment occlusions, it is now possible to employ endovascular techniques for suitable patients.

The re-establishment of an in-line flow, even if only temporary, can allow tissue healing, which is vital in achieving limb salvage. In addition, the use of Drug Coated Balloons (DCB) and Drug Eluting Stents (DES) can potentially reduce restenosis rate.

To date, there are few studies that have evaluated the performance of DCB in lesions that are longer than 10cm. We hope to evaluate the performance of iVascular Luminor DCB and Angiolite DES when used in the treatment of such lesions.

• Study Type: Interventional
• Enrollment (Actual): 50
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Singapore
  • Singapore, Singapore, 169608
    • Singapore General Hospital
  • Singapore, Singapore, 768828
    • Khoo Teck Puat Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 21 years to 90 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Patient 21 and above
• Patient has critical limb ischemia, presenting a score from 4 to 6 following Rutherford Classification
• Patient is willing to comply with the specified follow-up evaluations at specified time points
• Patient understands the nature of the procedure and provides written informed consent, prior to enrolment in the study
• Patient has a projected life expectancy of at least 12 months
• Prior to enrolment, the guidewire has crossed target lesion
• Patient is eligible for treatment with Luminor Paclitaxel-Eluting Peripheral Balloon Dilation Catheter and Angiolite Drug Eluting Stent
• De novo and post-PTA restenotic lesions located in the tibial arteries suitable for endovascular surgery
• The target lesion is located within the native tibial artery
• The length of the target lesion is >100mm and considered as TASC C or D lesion according to TASC II Classification
• The target lesion has angiographic evidence of stenosis >50% or occlusion, which can be passed with standard guidewire manipulation
• Target vessel diameter visually estimated is >1.5mm and <4.5mm below the knee
• Either one or two different tibial arteries may be treated. Lesions in the treated segment may be continuous or may have gaps present between stenosis and occlusions.
• Any tibial vessel intervened on must have distal reconstitution above the ankle
• Inflow iliac, SFA and popliteal lesions can be treated during the same procedure using standard angioplasty and/or approved device. These inflow lesions must be treated first prior to consideration of the BTK lesion. The patient can be enrolled if the inflow lesions are treated with good angiographic results (must have <30% residual stenosis and no evidence of embolization).
• There is angiographic evidence of at least one-vessel-runoff to the foot, irrespective of whether or not outflow-was established by means of previous endovascular intervention.

Exclusion Criteria:

• Patient refusing treatment
• Patient is permanently wheelchair-bound or bedridden
• Presence of a stent in the target lesions that was placed during a previous procedure
• Untreated flow-limiting inflow lesions
• Any previous surgery in the same limb
• Presence of an aortic thrombosis or significant common femoral ipsilateral stenosis
• Previous bypass surgery in the same limb
• Patient 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 known hypersensitivity to heparin, including those patients who have a previous incidence of heparin-induced thrombocytopenia (HIT) type II
• Patients with uncorrected bleeding disorders
• Aneurysm located at the level of SFA/popliteal artery
• Non-atherosclerotic disease resulting in occlusion (e.g. embolism, Buerger's disease, vasculitis)
• Severe medical comorbidities (untreated CFA/CHF, severe COPD, metastatic malignancy, dementia, etc.) or other medical conditions that would preclude compliance with the study protocol or 1-year life expectancy
• Major distal amputation (above the transmetatarsal) in the study limb or non-study limb
• Septicemia or bacteremia
• Patient has undrained pus or spreading wet gangrene in the foot that is not controlled at the time of revascularization procedure.
• Episode of acute limb ischemia within the previous 1 month
• Use of thrombectomy, atherectomy, or laser devices during procedure
• Any patient considered to be hemodynamically unstable at onset of procedure
• Known allergy to contrast media that cannot be adequately pre-medicated prior to the study procedure.
• Patient is participating in another research study of a device, medication, biologic or other agent within 30 days which could in the opinion of the investigator affect the results of this study.

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: Luminor DCB and Angiolite DES; Study Devices	Device: Luminor DCB and Angiolite DES; Patient to undergo angioplasty with Luminor DCB and Angiolite DES

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Freedom from Major Adverse Events	No device- and procedure-related mortality through 30 days, no major target limb amputation.	30 days post-operation
Freedom from Target Lesion Revascularization	No re-intervention performed for more than 50% diameter stenosis at the target lesion after documentation of recurrent clinical symptoms of patient.	12 months post-operation

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Primary patency rate	Absence of hemodynamically significant stenosis on duplex ultrasound (systolic velocity ration no greater than 2.5) at the target lesion and without TLR within the time of procedure and given follow-up	6 and 12 months post operation
Technical success	Ability to cross and dilate the lesion and achieve residual angiographic stenosis no greater than 30%	immediately post-operation
Freedom from clinically-driven TLR	Defined as absence of any repeat intervention to maintain and re-establish patency within the region of the treated arterial vessel plus 5mm proximal and distal to the treated lesion edge	6 month follow-up
Clinical success at follow-up	Improvement of Rutherford Classification	1, 6 and 12 months post-operation

Collaborators and Investigators

• Sponsor: Singapore General Hospital

Publications and helpful links

General Publications

• Baril DT, Marone LK, Kim J, Go MR, Chaer RA, Rhee RY. Outcomes of endovascular interventions for TASC II B and C femoropopliteal lesions. J Vasc Surg. 2008 Sep;48(3):627-33. doi: 10.1016/j.jvs.2008.04.059.
• Christenson BM, Rochon P, Gipson M, Gupta R, Smith MT. Treatment of infrapopliteal arterial occlusive disease in critical limb ischemia. Semin Intervent Radiol. 2014 Dec;31(4):370-4. doi: 10.1055/s-0034-1393974. No abstract available.
• Giles KA, Pomposelli FB, Spence TL, Hamdan AD, Blattman SB, Panossian H, Schermerhorn ML. Infrapopliteal angioplasty for critical limb ischemia: relation of TransAtlantic InterSociety Consensus class to outcome in 176 limbs. J Vasc Surg. 2008 Jul;48(1):128-36. doi: 10.1016/j.jvs.2008.02.027. Epub 2008 May 23. Erratum In: J Vasc Surg. 2009 Nov;50(5):1249. Spence, T L [added].
• TASC Steering Committee, Jaff MR, White CJ, Hiatt WR, Fowkes GR, Dormandy J, Razavi M, Reekers J, Norgren L. An Update on Methods for Revascularization and Expansion of the TASC Lesion Classification to Include Below-the-Knee Arteries: A Supplement to the Inter-Society Consensus for the Management of Peripheral Arterial Disease (TASC II). Vasc Med. 2015 Oct;20(5):465-78. doi: 10.1177/1358863X15597877. Epub 2015 Aug 12.
• Soderstrom MI, Arvela EM, Korhonen M, Halmesmaki KH, Alback AN, Biancari F, Lepantalo MJ, Venermo MA. Infrapopliteal percutaneous transluminal angioplasty versus bypass surgery as first-line strategies in critical leg ischemia: a propensity score analysis. Ann Surg. 2010 Nov;252(5):765-73. doi: 10.1097/SLA.0b013e3181fc3c73.
• Clark TW, Groffsky JL, Soulen MC. Predictors of long-term patency after femoropopliteal angioplasty: results from the STAR registry. J Vasc Interv Radiol. 2001 Aug;12(8):923-33. doi: 10.1016/s1051-0443(07)61570-x.
• Zeller T, Rastan A, Macharzina R, Tepe G, Kaspar M, Chavarria J, Beschorner U, Schwarzwalder U, Schwarz T, Noory E. Drug-coated balloons vs. drug-eluting stents for treatment of long femoropopliteal lesions. J Endovasc Ther. 2014 Jun;21(3):359-68. doi: 10.1583/13-4630MR.1.

Study record dates

Study Major Dates

• Study Start (Actual): December 27, 2018
• Primary Completion (Actual): March 10, 2020
• Study Completion (Actual): September 30, 2020

Study Registration Dates

• First Submitted: August 26, 2019
• First Submitted That Met QC Criteria: August 27, 2019
• First Posted (Actual): August 29, 2019

Study Record Updates

• Last Update Posted (Actual): March 17, 2021
• Last Update Submitted That Met QC Criteria: March 16, 2021
• Last Verified: March 1, 2021

More Information

Terms related to this study

• Keywords: Angioplasty; Drug Coated Balloon; Drug Coated Stents
• Additional Relevant MeSH Terms: Pathologic Processes; Ischemia
• Other Study ID Numbers: 2018/2800

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No