A Randomized, Double-blind Study to Assess Paclitaxel-eluting Stents in Treatment of Longer Lesions

Last updated: April 20, 2017
Sponsor: Boston Scientific Corporation
Overall Status: Completed

Phase

2/3

Condition

Coronary Artery Disease

Cardiovascular Disease

Hypercholesterolemia

Treatment

N/A

Clinical Study ID

NCT00297804
S2009
TAXUS VI
  • Ages > 18
  • All Genders

Study Summary

The clinical investigation is an international, prospective, multi-center, double-blind, randomized safety and efficacy trial. The purpose of this study is to evaluate the safety and effectiveness of the TAXUS(TM)Stent System with 1µg/mm2 (loaded drug/stent surface area) of paclitaxel incorporated into a moderate rate-release formulation of triblock copolymer carrier system in patients with a higher risk of target lesion revascularisation and restenosis.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • General Inclusion Criteria
  1. Patient >or= 18 years old

  2. Eligible for percutaneous coronary intervention

  3. Documented stable angina pectoris or unstable angina pectoris with documentedischemia or documented silent ischemia

  4. Acceptable candidate for CABG

  5. Patient (or legal guardian) understands the study requirements and the treatmentprocedures and provides written Informed Consent before any study-specific testsor procedures are performed

  6. Willing to comply with all specified follow-up evaluations

  • Angiographic Inclusion Criteria
  1. Target lesion located within a single native coronary vessel

  2. Target lesion randomized to treatment with the study device may be composed ofmultiple lesions but must be completely coverable by up to 2 study stents (maximum allowable stent length of 48 mm).

  3. Cumulative target lesion length is >or= 18 mm and <or= 40 mm (visual estimate)

  4. RVD of >or= 2.5 mm to <or= 3.75 mm (visual estimate)

  5. Target lesion diameter stenosis >or=50% (visual estimate)

  6. Target lesion is de novo

Exclusion

Exclusion Criteria:

  • General Exclusion Criteria:
  1. Known sensitivity to paclitaxel

  2. Any previous or planned treatment with any anti-restenotic drug-coated ordrug-eluting coronary stent (Note: previous or planned treatment with heparin orphosphorylcholine coated stents is acceptable, as long as the procedure with thestent meets the protocol defined criteria for staged procedures)

  3. Previous or planned treatment with intravascular brachytherapy in the targetvessel

  4. MI within 72 hours prior to the study procedure and/or CK-MB >2x the locallaboratory's upper limits of normal (refers to a measured value on the day of thestudy procedure)

  5. Left ventricular ejection fraction <25%

  6. Cerebrovascular Accident within the past 6 months

  7. Acute or chronic renal dysfunction (creatinine >1.7 mg/dl or >150 µmol/L)

  8. Contraindication to ASA, or to both clopidogrel and ticlopidine

  9. Leukopenia (leukocyte count <3.5 x 109/liter)

  10. Thrombocytopenia (platelet count <100,000/mm3)

  11. Active peptic ulcer or active gastrointestinal bleeding

  12. Known allergy to stainless steel

  13. Any prior true anaphylactic reaction to contrast agents

  14. Known anaphylactoid or other non-anaphylactic allergic reactions to contrastagents that cannot be adequately pre-medicated prior to the study procedure

  15. Patient is currently taking colchicine

  16. Patient is currently, or has been treated with paclitaxel within 12 months of thestudy procedure

  17. Female of childbearing potential with a positive pregnancy test within 7 daysbefore the study procedure, or lactating, or intends to become pregnant duringthe study

  18. Life expectancy of less than 24 months due to other medical conditions

  19. Co-morbid condition(s) that could limit the patient's ability to participate inthe study, compliance with follow-up requirements or impact the scientificintegrity of the study

  20. Currently participating in another investigational drug or device study that hasnot completed the primary endpoint or that clinically interferes with theendpoints of this study

  • Angiographic Exclusion Criteria
  1. Left main coronary artery disease (stenosis >50%), whether protected orunprotected

  2. Target lesion is ostial in location (within 3.0 mm of vessel origin)

  3. Target lesion(s) and/or target vessel proximal to the target lesion(s) ismoderately or severely calcified by visual estimation

  4. Target lesion is located within or distal to a >60°bend in the vessel

  5. Target lesion involves a bifurcation with a diseased (>50% stenotic) branchvessel >2.0 mm in diameter

  6. Target lesion is totally occluded Thrombolysis in MI (TIMI flow <or= 1)

  7. Angiographic presence of probable or definite thrombus

  8. Target vessel will be pre-treated with an unapproved device, directional orrotational coronary atherectomy, laser, cutting balloon or transluminalextraction catheter immediately prior to stent placement

Study Design

Total Participants: 448
Study Start date:
May 01, 2002
Estimated Completion Date:
February 29, 2008

Study Description

The ultimate goal of a paclitaxel eluting stent system is to prevent restenosis by blunting the initial response to stent implant injury and sustaining the arrested response until vascular healing has taken place.

The purpose of the TAXUS VI trial is to study the safety and efficacy of the TAXUS(TM)Stent under controlled trial circumstances and targets patients with a higher risk of target lesion revascularisation and restenosis. The study population will include longer lesions, smaller diameter vessels, multiple lesions in the same vessel, and allows for the use of up to 2 randomized study stents.

The clinical investigation will evaluate the safety and effectiveness of the TAXUS(TM)Stent with 1 µg/mm2 (loaded drug/stent surface area) of paclitaxel incorporated into a moderate rate-release formulation of a triblock copolymer carrier system for treatment of de novo coronary artery lesions.

Patients are stratified by site and presence or absence of medically treated diabetes mellitus and then randomized to receive either the TAXUS(TM)Stent or the uncoated EXPRESS(TM)stent.

The primary objective of the study is to show superior 9-month target vessel revascularization (TVR) rate for TAXUS(TM) Stent compared to uncoated Express(TM)control stent.

Connect with a study center

  • HELIOS Clinic

    Siegburg, 53721
    Germany

    Site Not Available

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