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Coronary Artery DiseasePhase 3NCT00371748

A Study of the TAXUS Liberté Stent for the Treatment of de Novo Coronary Artery Lesions in Small Vessels

A Phase 3 study testing TAXUS Liberté-SR, TAXUS™ Express2 and Express2 in people with Coronary Artery Disease, run by Boston Scientific Corporation at 25 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

TAXUS ATLAS Small Vessel is a global, multi-center, single-arm, trial of patients with coronary arteries less than 2.5 mm in diameter who are treated with the TAXUS Liberté stent versus an historical TAXUS Express control derived from a subset of lesion-matched TAXUS V patients treated with a 2.25 mm stent. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Coronary Artery Disease
What is being tested?
TAXUS Liberté-SR, TAXUS™ Express2 and Express2
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
261 participants
Where
25 sitesin 3 countries
Study dates
Feb 2005to Apr 2011
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

General Inclusion Criteria:

  1. Patient is at least 18 years old.
  2. Eligible for percutaneous coronary intervention (PCI)
  3. Documented stable angina pectoris or unstable angina pectoris with documented ischemia, or documented silent ischemia
  4. Left ventricular ejection fraction (LVEF) of at least 25%
  5. Acceptable candidate for coronary artery bypass grafting (CABG)
  6. 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
  7. Willing to comply with all specified follow-up evaluations

Angiographic Inclusion Criteria:

  1. Only one lesion (target lesion) may be treated with the study stent.However, one additional lesion in a non-target vessel may be treated during the index procedure with a commercially avaiable bare metal stent, heparin-coated stent or TAXUS Express stent.
  2. Successful predilation is mandatory for entry into study
  3. Target lesion located within a single native coronary artery
  4. Target lesion enrolled for treatment may be composed of multiple lesions (not more than 10mm between diseased segments) but must be completely covered by one study stent.
  5. Cumulative target lesion length is greater than or equal to 10 mm and less than or equal to 28 mm (visual estimate)
  6. Target lesion RVD of 2.25 mm [2.2 - 2.5 mm (visual estimate)]
  7. Target lesion diameter stenosis at least 50% (visual estimate)
  8. Target lesion is de novo (i.e., a coronary lesion not previously treated)

General Exclusion Criteria:

  1. Known hypersensitivity to paclitaxel
  2. Any previous, concurrent or planned treatment with a non-study anti-restenotic drug-coated or drug-eluting coronary stent.
  3. Planned use of both the study stent and a non-study stent (i.e., commercial stent) in the treatment of the target vessel
  4. Previous or planned treatment with intravascular brachytherapy in the target vessel
  5. Planned CABG within 9-months post-index procedure
  6. MI within 72 hours prior to the index procedure and/or creatine kinase(CK) >2x the local laboratory's ULN unless CK-MB is <2x ULN
  7. Cerebrovascular Accident (CVA) within the past 6 months
  8. Cardiogenic Shock
  9. Acute or chronic renal dysfunction
  10. Contraindication to ASA, or to both clopidogrel and ticlopidine
  11. Leukopenia
  12. Thrombocytopenia or thrombocytosis
  13. Active peptic ulcer or active gastrointestinal (GI) bleeding
  14. Known allergy to stainless steel
  15. Any prior true anaphylactic reaction to contrast agents
  16. Patient is currently, or has been treated with paclitaxel or other chemotherapeutic agents within 12-months of the index procedure
  17. Anticipated treatment with paclitaxel or oral rapamycin during any period in the 9-months after the index procedure
  18. Male or female with known intention to procreate within 3 months after the index procedure
  19. Female of childbearing potential with a positive pregnancy test within 7 days before the index procedure, or lactating
  20. Life expectancy of less than 24 months due to other medical condition
  21. 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
  22. 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:

  1. Unprotected and protected left main coronary artery disease (patient with protected left main disease can be enrolled ONLY if the target lesion is in the RCA)
  2. Target lesion is ostial in location (within 3.0 mm of vessel origin)
  3. Target lesion and/or target vessel proximal to the target lesion is moderately or severely calcified by visual estimate
  4. Target lesion and/or target vessel proximal to the target lesion is tortuous
  5. Target lesion is located within or distal to a >60 degree bend in the vessel
  6. Target lesion involves a bifurcation with a side branch vessel >1.5 mm (visual estimate)
  7. Target lesion is totally occluded (TIMI flow <1), either at baseline or predilation
  8. Angiographic presence of probable or definite thrombus
  9. Pre-treatment of teh target vessel at the index procedure is not allowed with any device except for predilation with balloon angioplasty or cutting balloon
  10. A previously treated lesion within the target vessel:
  • <15mm from the target lesion (visual estimate)
  • Performed </= 6 months from index procedure
  • >30% residual stenosis after previous treatment

Trial locations and contacts

25 sites in 3 countries.

25 sites in 3 countries

United States19 sites
  • Riverside Methodist Hospital

    Columbus, Ohio, 43214

  • St. Mary's Duluth Clinic Regional Heart Center

    Duluth, Minnesota, 55805

  • North Ohio Research Elyria Memorial Hospital

    Elyria, Ohio, 44035

  • The Pennsylvania State University Milton S Hershey Medical Center

    Hershey, Pennsylvania, 17033-0850

  • Methodist DeBakey Heart Center

    Houston, Texas, 77030-2767

  • The Heart Center

    Indianapolis, Indiana, 46290

  • Wellmont Holston Valley Medical Center

    Kingsport, Tennessee, 37660

  • Columbia University Medical Center

    New York, New York, 10032

  • Christiana Hospital

    Newark, Delaware, 19718-0002

  • Oklahoma Foundation for Cardiovascular Research

    Oklahoma City, Oklahoma, 73120

  • Florida Hospital

    Orlando, Florida, 32803

  • Northern Michigan Hospital

    Petoskey, Michigan, 49770

  • Maine Medical Center

    Portland, Maine, 04102

  • Wake Medical Center

    Raleigh, North Carolina, 27610

  • Mercy General Hospital

    Sacramento, California, 95819

  • St. John's Hospital

    Springfield, Illinois, 62701

  • Washington Adventist Hospital

    Takoma Park, Maryland, 20912

  • Scott & White Memorial Hospital

    Temple, Texas, 76508

  • North Mississippi Medical Center

    Tupelo, Mississippi, 38801

Other trials in United States

New Zealand4 sites
  • Mercy Angiography Unit, 98 Mountain Road, First Floor

    Auckland, Epsom, 1003

  • Auckland City Hospital

    Auckland, 1023

  • Christchurch Hospital

    Christchurch, 8001

  • Dunedin Hospital

    Dunedin

Other trials in New Zealand

Singapore2 sites
  • National University Hospital

    Singapore, 119074

  • National Heart Centre

    Singapore, 168752

Other trials in Singapore

About this study

Official title: TAXUS ATLAS SMALL VESSEL: A Multi-center, Single-arm Study of the TAXUS Liberté™-SR Stent for the Treatment of Patients With de Novo Coronary Artery Lesions in Small Vessels

TAXUS ATLAS Small Vessel is a global, multi-center, single-arm, trial of patients with coronary arteries less than 2.5 mm in diameter who are treated with the TAXUS Liberté stent versus an historical TAXUS Express control derived from a subset of lesion-matched TAXUS V patients treated with a 2.25 mm stent. The objective of the study is to evaluate clinical and angiographic outcomes of TAXUS Liberté-SR 2.25 mm stent in de novo lesions. The hypothesis is that the TAXUS Liberté-SR stent has non-inferior safety and efficacy to the TAXUS Express-SR stent in the treatment of de novo lesions in small coronary vessels.

Read the detailed description

TAXUS ATLAS Small Vessel is a global, multi-center, single-arm, trial of patients receiving the TAXUS Liberté-SR 2.25 mm paclitaxel-eluting stent. The results will be compared with two different historical control groups. The first control group consists of a subset of lesion-matched TAXUS V patients treated with a 2.25 mm TAXUS Express-SR paclitaxel-eluting stent. The objective of this analysis is to evaluate clinical and angiographic outcomes of TAXUS Liberté-SR 2.25 mm stent in de novo lesions versus the TAXUS Express-SR stent. The hypothesis is that the TAXUS Liberté-SR stent has non-inferior safety and efficacy to the TAXUS Express-SR stent in the treatment of de novo lesions in small coronary vessels. The second control group consists of a subset of lesion-matched TAXUS V patients treated with either a 2.5 mm or a 2.25 mm bare metal Express stent. The objective of this analysis is to evaluate clinical and angiographic outcomes of TAXUS Liberté-SR 2.25 mm stent in de novo lesions versus the Express bare metal stent. The hypothesis is that the TAXUS Liberté-SR stent has superior safety and efficacy to the Express bare metal stent in the treatment of de novo lesions in small coronary vessels.

Being tested
TAXUS Liberté-SR, TAXUS™ Express2, Express2
Medical subject headings
Coronary Artery Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • TAXUS Liberté-SRDevice

    Paclitaxel-Eluting Coronary Stent, 2.25 mm

  • TAXUS™ Express2Device

    Paclitaxel-Eluting Coronary Stent System

  • Express2Device

    Coronary Stent System

Study groups in NCT00371748
Study groupRoleWhat they receive
Arm 1ExperimentalNot described
Receives: Device: TAXUS Liberté-SR
Arm 2OtherHistorical Comparator: control data derived from a TAXUS V de novo lesion and stent size-matched cohort randomized to receive a single, planned 2.25 mm DES
Receives: Device: TAXUS™ Express2
Arm 3OtherHistorical Comparator: control data derived from a TAXUS V de novo lesion size-matched cohort randomized to receive a 2.25 mm or 2.5 mm BMS
Receives: Device: Express2

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percent diameter stenosis - analysis segment at 9 months

    Measured: 9 Months

Secondary outcomes (7)
  1. Clinical procedural and technical success

    Measured: 5 Years

  2. Utilization parameters (equipment utilization; catheters, guidewires and balloons, procedure time, fluoroscopic time and amount of contrast used)

    Measured: 9 months

  3. MACE rates at discharge, 1, 4 and 9 months and 1, 2, 3, 4, and 5 years post-index procedure.

    Measured: 5 years

  4. Stent thrombosis rate

    Measured: 5 Years

  5. Target Vessel Failure (TVF)

    Measured: 5 Years

  6. Target Vessel Revascularization (TVR)

    Measured: 5 Years

  7. QCA parameters (binary restenosis rate, in-stent %DS, MLD and late loss)

    Measured: 9 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Sep 2006 (estimated)
  2. Study startFeb 2005
  3. Primary completionDec 2006
  4. Study completionApr 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
261 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00371748
Sponsor's protocol ID
S2033
Other IDs
TAXUS ATLAS Small Vessel
Status last verified
Feb 2012
First submitted
1 Sep 2006
Last updated
2 Feb 2012
Results posted
No
Data monitoring committee
Yes

Publications

  • Ormiston JA, Charles O, Mann T, Hall JJ, McGarry T, Cannon LA, Webster MW, Mishkel GJ, Underwood PL, Dawkins KD. Final 5-year results of the TAXUS ATLAS, TAXUS ATLAS Small Vessel, and TAXUS ATLAS Long Lesion clinical trials of the TAXUS Liberte paclitaxel-eluting stent in de-novo coronary artery lesions. Coron Artery Dis. 2013 Jan;24(1):61-8. doi: 10.1097/MCA.0b013e32835b3932.

    PubMed 23232250
  • Doi H, Maehara A, Mintz GS, Yu A, Wang H, Mandinov L, Popma JJ, Ellis SG, Grube E, Dawkins KD, Weissman NJ, Turco MA, Ormiston JA, Stone GW. Impact of post-intervention minimal stent area on 9-month follow-up patency of paclitaxel-eluting stents: an integrated intravascular ultrasound analysis from the TAXUS IV, V, and VI and TAXUS ATLAS Workhorse, Long Lesion, and Direct Stent Trials. JACC Cardiovasc Interv. 2009 Dec;2(12):1269-75. doi: 10.1016/j.jcin.2009.10.005.

    PubMed 20129555
  • Mahmud E, Ormiston JA, Turco MA, Popma JJ, Weissman NJ, O'Shaughnessy CD, Mann T, Hall JJ, McGarry TF, Cannon LA, Webster MW, Mandinov L, Baim DS. TAXUS Liberte attenuates the risk of restenosis in patients with medically treated diabetes mellitus: results from the TAXUS ATLAS program. JACC Cardiovasc Interv. 2009 Mar;2(3):240-52. doi: 10.1016/j.jcin.2008.12.009.

    PubMed 19463432
  • Turco MA, Ormiston JA, Popma JJ, Hall JJ, Mann T, Cannon LA, Webster MW, Mishkel GJ, O'Shaughnessy CD, McGarry TF, Mandinov L, Dawkins KD, Baim DS. Reduced risk of restenosis in small vessels and reduced risk of myocardial infarction in long lesions with the new thin-strut TAXUS Liberte stent: 1-year results from the TAXUS ATLAS program. JACC Cardiovasc Interv. 2008 Dec;1(6):699-709. doi: 10.1016/j.jcin.2008.09.007.

    PubMed 19463387

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing TAXUS Liberté-SR, TAXUS™ Express2 and Express2 in people with Coronary Artery Disease, run by Boston Scientific Corporation at 25 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Feb 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 25 sites in United States, New Zealand, Singapore. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percent diameter stenosis - analysis segment at 9 months (time frame: 9 Months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00371748, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Feb 2012.

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