OptiCal COherence ToMography ABoard InformiNg AtherEctomy (COMBINE)

Avinger

Status: Terminated

Conditions: Atherectomy in Diseased Lower Extremity Arteries

Treatments: Device: Wolverine System to perform atherectomy

Study type: Interventional

Funder types: Industry

Identifiers

NCT01775410

P 0218

Details and patient eligibility

About

This is a prospective, multi-center, non-randomized single arm feasibility trial of the Wolverine OCT guided atherectomy system.The trial will enroll up to 50 subjects diagnosed with peripheral vascular disease of the lower extremities.The primary disease must be located in reference vessel diameters ≥ 2.5 mm which is significant enough to cause moderate to severe symptoms and warrant vascular intervention.

Full description

This is a prospective, multi-center, non-randomized single arm feasibility trial of the Wolverine OCT guided atherectomy system. The trial is predominantly descriptive and, as such, not powered statistically although endpoint comparisons may be made to the published literature on peripheral atherectomy.

The trial will enroll up to 50 subjects diagnosed with peripheral vascular disease of the lower extremities. The primary disease must be located in reference vessel diameters ≥ 3.0 mm which is significant enough to cause moderate to severe symptoms and warrant vascular intervention. Trial success is focused on short term safety including rates of major adverse events. An evaluation of efficacy will also be performed and will include an evaluation of technical success defined as the percent of target lesions that has a residual diameter stenosis <50% post the Wolverine device alone as assessed by an independent review at the time of treatment using quantitative angiography or visual estimate.

Enrollment: 4 patients

Sex: All

Ages: 18 to 100 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Age ≥ 18 years old.
2. Patient is a candidate for percutaneous intervention for peripheral vascular disease in the legs.
3. Patient is willing and able to give informed consent
4. Documented symptomatic atherosclerotic peripheral vascular disease Rutherford Classification 2-5.
5. Reference vessel lumen proximal to target lesion >2.5 mm in diameter by visual estimation.
6. Subject has de novo target lesion(s) with stenosis >70% by visual estimation distal to the profunda femoral artery. No more than 2 lesions may be treated with the Wolverine device.
7. Target lesion length <10 cm if target lesion >70% and <99% stenosed. If target lesion a chronic total occlusion (99-100% stenosed), target lesion length <4 cm.
8. Patient is capable of meeting requirements and be present at the follow-up clinic visits at 30 days.
9. At least one patent tibial run-off vessel at baseline.

Exclusion criteria

1. Subject is pregnant or breast feeding.
2. Rutherford Class 0 to 1 (asymptomatic and mild claudication).
3. Rutherford Class 6 (critical limb ischemia).
4. Severe calcification of the target lesion.
5. Target lesion with any type of stent or graft.
6. Target lesion in the iliac artery.
7. Target lesion stenosis <70%.
8. Subjects with significant (>70%) occlusive lesions proximal to the target lesion not successfully treated during the index procedure (upstream disease) and prior to treatment of the target lesion.
9. Endovascular or surgical procedure performed on the index limb less than or equal to 30 days prior to the index procedure.
10. Planned endovascular or surgical procedure 30 days after the index procedure.
11. Lesion in the contralateral limb requiring intervention during the index procedure or within 30 days of the index procedure.
12. Subjects with active infections whether they are being currently treated or not.
13. Hemodialysis or GFR <30 mL/min or creatinine level >2.5mg/dL.
14. Evidence or history of intracranial or gastrointestinal bleeding, intracranial aneurysm, myocardial infarction or stroke within the past 2 months.
15. Evidence or history of aneurysmal target vessel within the past 2 months.
16. History of severe trauma, fracture, major surgery or biopsy of a parenchymal organ within the past 14 days.
17. Known allergy to contrast agents or medications used to perform endovascular intervention that cannot be adequately pre-treated.
18. Subjects in whom anti-platelet, anticoagulant, or thrombolytic therapy is contraindicated.
19. History of heparin-induced thrombocytopenia (HIT).
20. Uncorrectable bleeding diathesis, platelet dysfunction, thrombocytopenia with platelet count less than 125,000/mm2 , known coagulopathy, or INR >1.5.
21. Any thrombolytic therapy within 2 weeks of the index procedure.
22. Any clinical and/or angiographic complication attributed to the use of another device prior to the insertion of the Wolverine into the subject.
23. Subjects or their legal guardians who have not or will not sign the Informed Consent.
24. Subjects who are unwilling or unable to comply with the follow-up study requirements.
25. Participation in any study of an investigational device, medication, biologic or other agent within 30 days prior to enrollment that is either a cardiovascular study or could, in the judgment of the investigator, affect the results of the study.

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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4 participants in 1 patient group

Wolverine System

Experimental group

Description:

Wolverine System to perform atherectomy while using directional visualization and imaging as an adjunct to fluoroscopy to aid removal of plaque from diseased lower extremity arteries

Treatment:

Device: Wolverine System to perform atherectomy