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Completed

NCT Number: NCT02733653

Safety and Effectiveness of Jetstream Atherectomy System (J-SUPREME)

The purpose of this study is to evaluate the safety and effectiveness of the Jetstream Atherectomy System for the treatment of Japanese patients with symptomatic occlusive atherosclerotic lesions in native superficial femoral artery (SFA) and/or proximal popliteal arteries (PPA).

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Key information

Age range

20 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Nagoya Kyoritsu Hospital, Nagoya, Aichi-ken, Japan

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About this study

A prospective, multicenter, single-arm trial evaluating the safety and efficacy of the Jetstream Atherectomy System in the treatment of symptomatic occlusive atherosclerotic lesions ≤150 mm in length located in the femoropopliteal arteries in subjects with symptoms classified as Rutherford categories 2-4.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Chronic, symptomatic lower limb ischemia defined as Rutherford categories 2-4
  • Stenotic, restenotic or occlusive lesion(s) located in the native SFA and/or PPA of which meet all of the following criteria:
  • Calcified lesions with degree of stenosis ≥70% or occlusions
  • Guidewire must cross lesion(s) within the true lumen, without a sub-intimal course
  • Vessel diameter ≥3.0 mm and ≤6.0 mm
  • Total lesion length (or series of lesions) ≤150mm
  • Target lesion located at least 3 cm above the inferior edge of the femur by visual estimate
  • Patent infrapopliteal and popliteal artery

Exclusion criteria

  • Target lesion/vessel with in-stent restenosis
  • Target lesion/vessel previously treated with drug-coated balloon <12 months prior to the procedure
  • Target lesion/vessel previously treated with any stent placement, atherectomy, laser or other debulking devices prior to the procedure
  • Subjects who have undergone surgery or endovascular of the SFA/PPA in the target vessel to treat atherosclerotic disease within 3 months prior to the index procedure
  • Use of drug-coated devices, atherectomy, laser or other debulking devices other than the Jetstream System, chronic total occlusion (CTO) devices or cutting balloon, Angioscore or similar devices in the target limb SFA/PPA during the index procedure
  • History of major amputation in the target limb
  • Subject has a history of coagulopathy or hypercoagulable bleeding disorder
  • Subject with untreatable hemorrhagic disease or platelet count <80,000mm3 or >600,000mm3 as baseline assessment.
  • Concomitant renal failure with a serum creatinine >2.0 mg/dL
  • Receiving dialysis or immunosuppressant therapy
  • History of myocardial infarction, or stroke/cerebrovascular accident (CVA) within 6 months prior to study enrollment
  • Unstable angina pectoris at the time of the enrollment
  • Septicemia at the time of enrollment
  • Presence of other hemodynamically significant outflow lesions in the target limb requiring a planned surgical intervention or endovascular procedure within 30 days after the index procedure
  • Presence of aneurysm in the target vessel
  • Acute ischemia and/or acute thrombosis of the SFA/PPA prior to the index procedure
  • Perforated vessel as evidenced by extravasation of contrast media prior to the index procedure

Treatment and study plan

Jetstream Atherectomy System

Device

A rotating, aspirating, expandable catheter system for active removal of atherosclerotic debris and thrombus in the SFA and/or PPA

Primary outcomes

  1. Primary Patency Rate

    Time frame: 6 months

Other outcomes

  1. Procedural Success Rate

    Time frame: during procedure

    Bailout stenting or surgical procedure during the index procedure is not needed

  2. Rate of Distal Emboli Requiring Additional Treatment

    Time frame: during procedure or within 24 hours post-index procedure

  3. Reduction in Lesion Stenosis

    Time frame: during procedure

    The difference between the percent stenosis prior to treatment with Jetstream and the percent stenosis following treatment with Jetstream.

  4. Major Adverse Event (MAE) Rate

    Time frame: 1 month, 6 months and 12 months

    All-cause death through 1 month, and/or target limb major amputation and/or Target Lesion Revascularization (TLR) through 12 months

  5. Primary Patency

    Time frame: 1 month, 6 months and 12 months

    Percentage (%) of lesions that reach endpoint without a hemodynamically significant stenosis on Duplex Ultrasound (DUS) and without Target Lesion Revascularization (TLR) or, bypass of the target lesion.

  6. Assisted Primary Patency

    Time frame: 1 month, 6 months and 12 months

    Percentage (%) of lesions without TLR and those with TLR (not due to complete occlusion or by-pass) that reach endpoint without restenosis.

  7. Clinically-driven TLR Rate

    Time frame: 1 month, 6 months and 12 months

  8. Clinically-driven Target Vessel Revascularization (TVR) Rate

    Time frame: 1 month, 6 months and 12 months

  9. Adverse Event Rates

    Time frame: 1 month, 6 months and 12 months

  10. Distribution of Rutherford Class

    Time frame: 6 months and 12 months

    Distribution of Rutherford Class as compared to baseline at 6 months and 12 months

  11. Rate of Primary and Secondary Sustained Clinical Improvement

    Time frame: 1 month, 6 months and 12 months

  12. Rate of Hemodynamic Improvement

    Time frame: 1 month, 6 months and 12 months

Sponsors and collaborators

Lead sponsor

Boston Scientific Corporation

Industry

Registry information

Official study title

A Prospective, Multicenter, Single-arm Clinical Trial of Jetstream Atherectomy System for the Treatment of Japanese Patients With Symptomatic Occlusive Atherosclerotic Lesions in the Superficial Femoral and/ or Proximal Popliteal Arteries

Important dates

Study start
2016
Primary completion
2017
Study completion
2017
First posted
Apr 11, 2016
Registry last updated
Jan 8, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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