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

Primary Purpose

Coronary Artery Disease

Status
Completed
Phase
Phase 2
Locations
Germany
Study Type
Interventional
Intervention
TAXUS Express Paclitaxel-Eluting Coronary Stent System
Control stent
Sponsored by
Boston Scientific Corporation
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Coronary Artery Disease focused on measuring Coronary Artery Disease, Percutaneous Coronary Intervention, Stent Implant, Drug-coated Stent

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria: General Inclusion Criteria Patient >or= 18 years old Eligible for percutaneous coronary intervention Documented stable angina pectoris or unstable angina pectoris with documented ischemia or documented silent ischemia Acceptable candidate for CABG Patient (or legal guardian) understands the study requirements and the treatment procedures and provides written Informed Consent before any study-specific tests or procedures are performed Willing to comply with all specified follow-up evaluations Angiographic Inclusion Criteria Target lesion located within a single native coronary vessel Target lesion randomized to treatment with the study device may be composed of multiple lesions but must be completely coverable by up to 2 study stents (maximum allowable stent length of 48 mm). Cumulative target lesion length is >or= 18 mm and <or= 40 mm (visual estimate) RVD of >or= 2.5 mm to <or= 3.75 mm (visual estimate) Target lesion diameter stenosis >or=50% (visual estimate) Target lesion is de novo Exclusion Criteria: General Exclusion Criteria: Known sensitivity to paclitaxel Any previous or planned treatment with any anti-restenotic drug-coated or drug-eluting coronary stent (Note: previous or planned treatment with heparin or phosphorylcholine coated stents is acceptable, as long as the procedure with the stent meets the protocol defined criteria for staged procedures) Previous or planned treatment with intravascular brachytherapy in the target vessel MI within 72 hours prior to the study procedure and/or CK-MB >2x the local laboratory's upper limits of normal (refers to a measured value on the day of the study procedure) Left ventricular ejection fraction <25% Cerebrovascular Accident within the past 6 months Acute or chronic renal dysfunction (creatinine >1.7 mg/dl or >150 µmol/L) Contraindication to ASA, or to both clopidogrel and ticlopidine Leukopenia (leukocyte count <3.5 x 109/liter) Thrombocytopenia (platelet count <100,000/mm3) Active peptic ulcer or active gastrointestinal bleeding Known allergy to stainless steel Any prior true anaphylactic reaction to contrast agents Known anaphylactoid or other non-anaphylactic allergic reactions to contrast agents that cannot be adequately pre-medicated prior to the study procedure Patient is currently taking colchicine Patient is currently, or has been treated with paclitaxel within 12 months of the study procedure Female of childbearing potential with a positive pregnancy test within 7 days before the study procedure, or lactating, or intends to become pregnant during the study Life expectancy of less than 24 months due to other medical conditions Co-morbid condition(s) that could limit the patient's ability to participate in the study, compliance with follow-up requirements or impact the scientific integrity of the study Currently participating in another investigational drug or device study that has not completed the primary endpoint or that clinically interferes with the endpoints of this study Angiographic Exclusion Criteria Left main coronary artery disease (stenosis >50%), whether protected or unprotected Target lesion is ostial in location (within 3.0 mm of vessel origin) Target lesion(s) and/or target vessel proximal to the target lesion(s) is moderately or severely calcified by visual estimation Target lesion is located within or distal to a >60°bend in the vessel Target lesion involves a bifurcation with a diseased (>50% stenotic) branch vessel >2.0 mm in diameter Target lesion is totally occluded Thrombolysis in MI (TIMI flow <or= 1) Angiographic presence of probable or definite thrombus Target vessel will be pre-treated with an unapproved device, directional or rotational coronary atherectomy, laser, cutting balloon or transluminal extraction catheter immediately prior to stent placement

Sites / Locations

  • HELIOS Clinic

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

Arm 1

Arm 2

Arm Description

Outcomes

Primary Outcome Measures

Rate of TVR 9 months after index procedure

Secondary Outcome Measures

• Rates of composite Major Adverse Cardiac Events (MACE) and the individual components of MACE, assessed at 1, 3, 6 and 9 months after the study procedure and annually for 5 years (i.e., 1, 2, 3, 4, and 5 years after the study procedure).
Stent thrombosis rate.
Target Vessel Failure.
Clinical procedural success.
Binary restenosis rate.
• Additional angiographic endpoints at 9 month angiographic follow-up
IVUS assessment in a subset of approximately 200 patients. At the baseline procedure (post-procedural) and at 9 month follow-up the absolute neointimal volume and the change in neointimal volume from post-procedure to follow-up will be analysed.

Full Information

First Posted
February 27, 2006
Last Updated
April 20, 2017
Sponsor
Boston Scientific Corporation
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1. Study Identification

Unique Protocol Identification Number
NCT00297804
Brief Title
A Randomized, Double-blind Study to Assess Paclitaxel-eluting Stents in Treatment of Longer Lesions
Acronym
TAXUS VI
Official Title
TAXUS VI - A Randomized, Double-blind Study to Assess Paclitaxel-eluting Stents in Treatment of Longer Lesions
Study Type
Interventional

2. Study Status

Record Verification Date
April 2017
Overall Recruitment Status
Completed
Study Start Date
May 2002 (undefined)
Primary Completion Date
October 2003 (Actual)
Study Completion Date
February 2008 (Actual)

3. Sponsor/Collaborators

Name of the Sponsor
Boston Scientific Corporation

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief 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.
Detailed 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.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Coronary Artery Disease
Keywords
Coronary Artery Disease, Percutaneous Coronary Intervention, Stent Implant, Drug-coated Stent

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2, Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
448 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Arm 1
Arm Type
Experimental
Arm Title
Arm 2
Arm Type
Active Comparator
Intervention Type
Device
Intervention Name(s)
TAXUS Express Paclitaxel-Eluting Coronary Stent System
Intervention Description
Paclitaxel-Eluting Coronary Stent System
Intervention Type
Device
Intervention Name(s)
Control stent
Intervention Description
control stent
Primary Outcome Measure Information:
Title
Rate of TVR 9 months after index procedure
Time Frame
9 Months
Secondary Outcome Measure Information:
Title
• Rates of composite Major Adverse Cardiac Events (MACE) and the individual components of MACE, assessed at 1, 3, 6 and 9 months after the study procedure and annually for 5 years (i.e., 1, 2, 3, 4, and 5 years after the study procedure).
Time Frame
5 years
Title
Stent thrombosis rate.
Time Frame
5 Years
Title
Target Vessel Failure.
Time Frame
5 years
Title
Clinical procedural success.
Time Frame
Post procedure
Title
Binary restenosis rate.
Time Frame
9 months
Title
• Additional angiographic endpoints at 9 month angiographic follow-up
Time Frame
9 months
Title
IVUS assessment in a subset of approximately 200 patients. At the baseline procedure (post-procedural) and at 9 month follow-up the absolute neointimal volume and the change in neointimal volume from post-procedure to follow-up will be analysed.
Time Frame
9 months

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: General Inclusion Criteria Patient >or= 18 years old Eligible for percutaneous coronary intervention Documented stable angina pectoris or unstable angina pectoris with documented ischemia or documented silent ischemia Acceptable candidate for CABG Patient (or legal guardian) understands the study requirements and the treatment procedures and provides written Informed Consent before any study-specific tests or procedures are performed Willing to comply with all specified follow-up evaluations Angiographic Inclusion Criteria Target lesion located within a single native coronary vessel Target lesion randomized to treatment with the study device may be composed of multiple lesions but must be completely coverable by up to 2 study stents (maximum allowable stent length of 48 mm). Cumulative target lesion length is >or= 18 mm and <or= 40 mm (visual estimate) RVD of >or= 2.5 mm to <or= 3.75 mm (visual estimate) Target lesion diameter stenosis >or=50% (visual estimate) Target lesion is de novo Exclusion Criteria: General Exclusion Criteria: Known sensitivity to paclitaxel Any previous or planned treatment with any anti-restenotic drug-coated or drug-eluting coronary stent (Note: previous or planned treatment with heparin or phosphorylcholine coated stents is acceptable, as long as the procedure with the stent meets the protocol defined criteria for staged procedures) Previous or planned treatment with intravascular brachytherapy in the target vessel MI within 72 hours prior to the study procedure and/or CK-MB >2x the local laboratory's upper limits of normal (refers to a measured value on the day of the study procedure) Left ventricular ejection fraction <25% Cerebrovascular Accident within the past 6 months Acute or chronic renal dysfunction (creatinine >1.7 mg/dl or >150 µmol/L) Contraindication to ASA, or to both clopidogrel and ticlopidine Leukopenia (leukocyte count <3.5 x 109/liter) Thrombocytopenia (platelet count <100,000/mm3) Active peptic ulcer or active gastrointestinal bleeding Known allergy to stainless steel Any prior true anaphylactic reaction to contrast agents Known anaphylactoid or other non-anaphylactic allergic reactions to contrast agents that cannot be adequately pre-medicated prior to the study procedure Patient is currently taking colchicine Patient is currently, or has been treated with paclitaxel within 12 months of the study procedure Female of childbearing potential with a positive pregnancy test within 7 days before the study procedure, or lactating, or intends to become pregnant during the study Life expectancy of less than 24 months due to other medical conditions Co-morbid condition(s) that could limit the patient's ability to participate in the study, compliance with follow-up requirements or impact the scientific integrity of the study Currently participating in another investigational drug or device study that has not completed the primary endpoint or that clinically interferes with the endpoints of this study Angiographic Exclusion Criteria Left main coronary artery disease (stenosis >50%), whether protected or unprotected Target lesion is ostial in location (within 3.0 mm of vessel origin) Target lesion(s) and/or target vessel proximal to the target lesion(s) is moderately or severely calcified by visual estimation Target lesion is located within or distal to a >60°bend in the vessel Target lesion involves a bifurcation with a diseased (>50% stenotic) branch vessel >2.0 mm in diameter Target lesion is totally occluded Thrombolysis in MI (TIMI flow <or= 1) Angiographic presence of probable or definite thrombus Target vessel will be pre-treated with an unapproved device, directional or rotational coronary atherectomy, laser, cutting balloon or transluminal extraction catheter immediately prior to stent placement
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Eberhard Grube, MD
Organizational Affiliation
HELIOS Clinic Siegburg, Germany
Official's Role
Principal Investigator
Facility Information:
Facility Name
HELIOS Clinic
City
Siegburg
ZIP/Postal Code
53721
Country
Germany

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
PubMed Identifier
22496083
Citation
Wakabayashi K, Mintz GS, Weissman NJ, Stone GW, Ellis SG, Grube E, Ormiston JA, Turco MA, Pakala R, Xue Z, Desale S, Laynez-Carnicero A, Romaguera R, Sardi G, Pichard AD, Waksman R. Impact of drug-eluting stents on distal vessels. Circ Cardiovasc Interv. 2012 Apr;5(2):211-9. doi: 10.1161/CIRCINTERVENTIONS.111.965780. Epub 2012 Apr 10.
Results Reference
derived

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

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