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Assessment of the Numen Stent With Evaluation in a Randomized Study (ANSWERS)

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ClinicalTrials.gov Identifier: NCT00790283
Recruitment Status : Unknown
Verified February 2009 by International Biomedical Systems S.p.A..
Recruitment status was:  Recruiting
First Posted : November 13, 2008
Last Update Posted : February 17, 2009
Sponsor:
Information provided by:
International Biomedical Systems S.p.A.

Brief Summary:
The purpose of this study is to Evaluate the Short-Term and Mid-Term Safety and Efficacy of the NUMEN Cobalt-Chromium coronary stent for the treatment of de novo lesions in native coronary arteries and compare it to the VISION/MINIVISION coronary stent

Condition or disease Intervention/treatment Phase
Lesion Device: PTCA with stent implantation Phase 2 Phase 3

Detailed Description:

The success of bare metal coronary stenting is limited by the restenosis phenomenon, with rates depending on patient vascular morphology and lesion-related factors, the indication for and technique of stent deployment, and others. Drug-eluting stents (DES) improve the treatment of many coronary artery lesions by significantly reducing in-stent restenosis. However, there have numerous limitations resulting from the need for long-term dual antiplatelet therapy, the consequent bleeding risk (old patients, surgery, colon or gastric cancer, trauma), the unknown side-effects of long-term antiplatelet therapy, the cost associated with a long-term thienopyridine regimen, the body's reaction to the stent polymer, and the 0.2% per year increase in late stent thrombosis in comparison with bare metal stents (BMS).

For these reasons, continuous research is devoted to improve the effectiveness of bare metal stents. The ideal stent should be non-thrombogenic, with a low rate of restenosis and late thrombotic events. The NUMEN stent has been designed to meet these criteria, using an extremely low stent strut thickness.


Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 500 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Treatment
Official Title: Assessment of the Numen Stent With Evaluation in a Randomized Study
Study Start Date : September 2008
Estimated Primary Completion Date : September 2009
Estimated Study Completion Date : September 2009

Arm Intervention/treatment
Experimental: Numen Device: PTCA with stent implantation

Eligible patients will be randomly assigned to the implantation of one (or more) Numen or Vision/Mini Vision stent.

Each patient will undergo a 1-month follow-up and a clinical visit at 6 months from the procedure.


Active Comparator: Vision/MiniVision Device: PTCA with stent implantation

Eligible patients will be randomly assigned to the implantation of one (or more) Numen or Vision/Mini Vision stent.

Each patient will undergo a 1-month follow-up and a clinical visit at 6 months from the procedure.





Primary Outcome Measures :
  1. Cumulative incidence of Major Adverse Cardiac Events (MACE), Cerebrovascular Events CVE) and Major Bleedings (according to TIMI classification) [ Time Frame: 6 months ]

Secondary Outcome Measures :
  1. Any death, cardiac death, stent related fatal / non fatal MI, TVR [ Time Frame: 1 month ]
  2. Any death, cardiac death, stent related fatal / non fatal MI, TVR [ Time Frame: 6 months ]
  3. Cardiac death, fatal/non fatal MI [ Time Frame: In hospital ]
  4. Procedural success, TLR, TVR, ST [ Time Frame: In hospital ]


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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Age > 18 years
  • Clinical or instrumental documentation of stable/unstable myocardial ischemia or angina with a >50% lesion on a major coronary vessel and/or side branch > 2.0 mm
  • Lesion length ≤ 20 mm
  • Vessel requiring stent size with diameter ≥ 2.5 mm

Exclusion Criteria:

  • Age < 18 years
  • Life expectancy < 6 months
  • Chronic renal failure (serum creatinine > 2 mg %)
  • Ongoing acute myocardial infarction
  • Left ventricular ejection fraction (LVEF) <30%
  • Cardiogenic shock
  • Documented or suspected systemic and/or infectious disease
  • Hypersensitivity to cobalt chromium or contrast media
  • Anti-thrombotic drug intolerance
  • Cardiac and/or extracardiac documented disease requiring surgical repair
  • Patient is not an acceptable candidate for emergent coronary artery bypass surgery
  • Primary or secondary pulmonary hypertension (by echo-doppler)
  • Planned > 2 stent implantation (except bail-out)
  • Recent (< 6 months) PCI or CABG
  • Other type of stent implantation (also in case of bail-out)
  • Visible endocoronary thrombosis
  • Diffuse, severe coronary calcifications
  • Use of debulking devices
  • Extreme vessel tortuosity
  • Unprotected left main stenosis (ULM)
  • Bifurcation lesion
  • In stent restenosis (ISR)
  • Saphenous vein graft (SVG) and arterial by pass (internal mammary artery,IMA)
  • Chronic total occlusion (CTO)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00790283


Contacts
Contact: Thierry Corcos, MD, FACC +33-(0)1-40-088806

Locations
France
CHU Cote de Nacre Active, not recruiting
Caen Cedex, France, 14033
CMC De Parly II Active, not recruiting
Le Chesnay, France, 78150
Clinique Vert Coteau Active, not recruiting
Marseille Cedex 12, France, 13375
Clinique Valmente Active, not recruiting
Marseille, France, 13009
Centre Hospitalier Privé Beauregard Recruiting
Marseille, France, 13012
Contact: Olivier Wittemberg    0033491121090    olwitt@aol.com   
Principal Investigator: Olivier Wittemberg         
Clinique Turin Not yet recruiting
Paris, France, 75006
Principal Investigator: Thierry Corcos, MD, FACC         
Clinique Alleray-Labrouste Active, not recruiting
Paris, France, 75018
Clinique Saint Gatien Active, not recruiting
Tours Cedex, France, 37042
Sponsors and Collaborators
International Biomedical Systems S.p.A.
Investigators
Principal Investigator: Thierry Corcos, MD, FACC Clinique Turin, Paris, France

Responsible Party: Nader Shehata, International Biomedical Systems S.p.A.
ClinicalTrials.gov Identifier: NCT00790283     History of Changes
Other Study ID Numbers: IBS/04-2007
2008-A00111-54
First Posted: November 13, 2008    Key Record Dates
Last Update Posted: February 17, 2009
Last Verified: February 2009

Keywords provided by International Biomedical Systems S.p.A.:
Treatment of de novo lesions in native coronary arteries