Randomized Trial Evaluating Slow-Release Formulation TAXUS Paclitaxel-Eluting Coronary Stent in the Treatment of In-Stent Restenosis (TAXUS V ISR)
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Purpose
The objective of this study is to evaluate the safety and effectiveness of the TAXUS Express2 Paclitaxel-Eluting Coronary Stent System as compared to brachytherapy in patients experiencing in-stent restenosis.
| Condition | Intervention | Phase |
|---|---|---|
|
Coronary Restenosis |
Device: TAXUS Express2 Procedure: Brachytherapy (beta source) |
Phase 2 Phase 3 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Parallel Assignment Masking: Open Label Primary Purpose: Treatment |
| Official Title: | A Prospective, Randomized Trial Evaluating Slow-Release Formulation TAXUS Paclitaxel-Eluting Coronary Stent in the Treatment of In-Stent Restenosis |
- Rate of Target Vessel Revascularization [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
- Incidence of composite major adverse cardiac events (MACE) and the individual components of MACE [ Time Frame: assessed at discharge, 1, 4 and 9 months post index procedure and annually for 5 years ] [ Designated as safety issue: Yes ]
- Stent thrombosis rate [ Time Frame: 5 Years ] [ Designated as safety issue: Yes ]
- Target Vessel Failure (TVF, defined as any ischemia-driven revascularization of the target vessel, MI related to the target vessel, or death related to the target vessel). [ Time Frame: 5 Years ] [ Designated as safety issue: Yes ]
- Clinical procedural success and technical success [ Time Frame: 5 Years ] [ Designated as safety issue: Yes ]
- Binary restenosis rate [ Time Frame: 5 years ] [ Designated as safety issue: Yes ]
- Evaluate outcomes and treatment of recurrent restenosis in the TAXUS stent arm [ Time Frame: 5 Years ] [ Designated as safety issue: Yes ]
- Absolute lesion length [ Time Frame: 9 Months ] [ Designated as safety issue: No ]
- Reference Vessel Diameter (RVD) [ Time Frame: 9 Months ] [ Designated as safety issue: No ]
- Minimum Lumen Diameter (MLD) [ Time Frame: 9 Months ] [ Designated as safety issue: No ]
- Percent diameter stenosis (% DS) [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
- Acute gain [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
- Late loss [ Time Frame: 9 Months ] [ Designated as safety issue: No ]
- Loss index [ Time Frame: 9 Months ] [ Designated as safety issue: No ]
- Patterns of recurrent restenosis, including edge effect [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
- Coronary aneurysm [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
- Identification of potential safety issues. [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
- Change in neointimal volume from post procedure to follow-up [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
- Change in MLD within the stent or area of brachytherapy [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
- Minimum lumen area (MLA) within the stent or area of brachytherapy [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
- Lumen, plaque and vessel measurements at the treatment edges (outside of the stent or area of brachytherapy) [ Time Frame: 9 Months ] [ Designated as safety issue: Yes ]
| Enrollment: | 488 |
| Study Start Date: | June 2003 |
| Study Completion Date: | January 2010 |
| Primary Completion Date: | December 2004 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
| Experimental: Arm 1 |
Device: TAXUS Express2
Paclitaxel-Eluting Coronary Stent System
|
| Active Comparator: Arm 2 |
Procedure: Brachytherapy (beta source)
Brachytherapy (beta source)
|
Detailed Description:
Percutaneous approaches to in-stent restenosis (ISR) have included balloon angioplasty alone, rotational atherectomy, cutting balloon angioplasty, directional coronary atherectomy, excimer laser angioplasty, placement of a second stent or any combination thereof, and intra-coronary brachytherapy. Of these, only brachytherapy has been shown to reduce recurrent restenosis after PCI for ISR, - and is now considered the standard of care. Logistical considerations in establishing and maintaining a radiation program have limited the widespread availability of this modality. These considerations include the need for involvement of radiation oncologists, physicists, and safety officers; nuclear licensing requirements; need for increased shielding and safety training; equipment and procedural complexities; as well as increased procedural time and costs. Furthermore, recurrent ISR after brachytherapy may still occur. Stent based drug delivery for the treatment of ISR holds promise as a much simpler, safer and potentially more effective alternative to brachytherapy.
This is a prospective, randomized (1:1), open-label, multicenter, safety and efficacy trial for the treatment of in-stent restenosis. The primary objective is to demonstrate a superior or non-inferior 9-month target vessel revascularization (TVR) rate for TAXUS-SR stent compared to intra-coronary brachytherapy (beta source).
Eligibility| Ages Eligible for Study: | 18 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Cumulative target lesion length is </= 46 mm (visual estimate).
- Reference vessel diameter (RVD) is >/= 2.5 and </= 3.75 mm (visual estimate)
- Left ventricular ejection fraction (LVEF) is >/= 25%
Exclusion Criteria:
- Any previous or planned treatment with a non-study anti-restenotic drug-coated or drug-eluting coronary stent in the target vessel. (Note:previous or planned treatment with heparin or phosphorylcholine coated stents is acceptable, as long as, the procedure with the non-study stent meets the protocol defined criteria for non-target lesion interventions.)
- Previous or planned treatment with intra-coronary brachytherapy (gamma or beta source) in the target vessel
- Previous external radiotherapy to the heart or target vessel area
- Known genetic radiation sensitivity disorders (i.e. ataxia-telangiectasia, etc.)
- Side branch of the target lesion includes ostial narrowing >/= 50% diameter stenosis (DS) and is >/= 2.0 mm diameter
- Target lesion has been previously treated for ISR with the placement of a second stent(s), which covers >/= 50% of the original stent length (a true "stent sandwich")
- Target vessel is pre-treated with an unapproved device, directional or rotational coronary atherectomy, laser, or transluminal extraction catheter immediately prior to delivery of randomized treatment (stent placement or intra-coronary brachytherapy)
- Recent myocardial infarction (MI) (symptom onset </= 72 hours prior to randomization)
- CK-MB >2x the local laboratory's upper limit of normal (ULN) (refers to a measured value on the day of the index procedure as drawn per protocol)
- Anticipated treatment with warfarin during any period in the 6 months post index procedure
- Anticipated treatment with paclitaxel, oral rapamycin or colchicine during any period in the 9 months post index procedure
- Planned use of both the study stent and a non-study stent (i.e., commercial stent) in the treatment of the target lesion
Contacts and Locations
Show 42 Study Locations| Principal Investigator: | Gregg W. Stone, MD | Columbia University |
| Principal Investigator: | Stephen G. Ellis, MD | The Cleveland Clinic |
More Information
Publications:
| Responsible Party: | Marcie Clarkin, Boston Scientific |
| ClinicalTrials.gov Identifier: | NCT00287573 History of Changes |
| Other Study ID Numbers: | S5442, TAXUS V ISR |
| Study First Received: | February 3, 2006 |
| Last Updated: | August 5, 2010 |
| Health Authority: | United States: Food and Drug Administration United States: Institutional Review Board |
Additional relevant MeSH terms:
|
Coronary Restenosis Coronary Stenosis Coronary Disease Myocardial Ischemia Heart Diseases Cardiovascular Diseases Vascular Diseases Paclitaxel |
Tubulin Modulators Antimitotic Agents Mitosis Modulators Molecular Mechanisms of Pharmacological Action Pharmacologic Actions Antineoplastic Agents, Phytogenic Antineoplastic Agents Therapeutic Uses |
ClinicalTrials.gov processed this record on June 18, 2013