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Stent Thrombosis clinical trials

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NCT ID: NCT00931502 Completed - Clinical trials for Acute Coronary Syndrome

Stent Thrombosis In Acute Coronary Syndromes

Start date: April 2008
Phase: N/A
Study type: Observational

The purpose of this study is to better understand what treatment methods result in the best outcomes for patients who have heart attacks due to blood clots forming within stents.

NCT ID: NCT00914368 Completed - Clinical trials for Coronary Artery Disease

Tailoring Of Platelet Inhibition to Avoid Stent Thrombosis

TOPAS-1
Start date: January 2009
Phase: Phase 2
Study type: Interventional

The primary objective of this study is to establish a cut off level of platelet inhibition that separates patients with or without previous stent occlusion with acute clinical onset while on aspirin and clopidogrel treatment within 6 months after coronary stenting for coronary artery disease.

NCT ID: NCT00822536 Completed - Clinical trials for Coronary Artery Disease

Optimal Duration of Dual Antiplatelet Therapy After Drug-eluting Stent Implantation

OPTIDUAL
Start date: January 2009
Phase: Phase 4
Study type: Interventional

To compare treatment with aspirin alone versus the combined antiplatelet treatment aspirin and clopidogrel after 12 months of combined antiplatelet treatment following drug-eluting stent (DES) implantation.

NCT ID: NCT00753753 Completed - Bleeding Clinical Trials

VerifyNow French Registry

VERIFRENCHY
Start date: February 2008
Phase: N/A
Study type: Observational

The purpose of this study is to determine the effect of clopidogrel or aspirin reactivity as measured by a point-of-care platelet function assay on thrombotic or bleeding events after percutaneous coronary intervention (PCI) with drug eluting or bare metal stent. Methods: Platelet reactivity on clopidogrel and aspirin therapy is measured before PCI with VerifyNow (Accumetrics Inc.,San Diego, CA, USA) P2Y12 or aspirin assay respectively in 1000 consecutive patients from 20 centers in France undergoing coronary angioplasty with stent. Exclusion criteria are: Acute myocardial infarction, treatment with vitamin K antagonists and the use of antiGP2b3a before PCI. All patients are pre-treated with clopidogrel and aspirin. Non-response to aspirin or clopidogrel is determined according to the result of the VerifyNow assay (cut off : < 15 % for P2Y12 and > 550 ARU for aspirin). The primary end point is the occurrence of definite or probable stent thrombosis (ARC definition) and the secondary end-points include global and cardio-vascular mortality, non fatal myocardial infarction and major bleeding. A clinical evaluation is scheduled at discharge and by telephone contact at one month and one year.

NCT ID: NCT00647504 Completed - Stent Thrombosis Clinical Trials

Prospective Clinical Observational Registry Including Consecutive Patients With In-stent Restenosis or Stent Thrombosis

NIVUS
Start date: October 2007
Phase: N/A
Study type: Observational

Prospective clinical observational registry study including consecutive patients with clinical signs or symptoms due to in-stent restenosis (ISR) or definite (ARC criteria) stent thrombosis (ST). Study hypothesis: Initial Stent implantation quality (due to technique/problems) are possible major determinants of ST and ISR in real life practice. Both early, late, and very late ST, and ISR are important factors for long term outcome after initial stent implantation. Primary objective: - To elucidate the possible cause(s) of thrombosis or restenosis after stent implantation in real life practice by clinical, angiographic and IVUS evaluation. Secondary objective: - To describe the clinical manifestation [stable angina pectoris (AP), unstable AP, non-ST-elevation myocardial infarction (NSTEMI), or ST-elevation MI] of the index event (inclusion). - To describe the characteristics of patient, lesion and procedure of the initial percutaneous coronary intervention (PCI). - To describe the antithrombotic pharmacological therapy preceding the index event. - To describe clinical outcome (death, MI, revascularization, CCS angina class) following treatment of the index event during 12 month follow-up. - To describe safety of the IVUS procedure (product or procedural related complications/ malfunctions).

NCT ID: NCT00496938 Completed - Clinical trials for Coronary Artery Disease

XIENCE V: SPIRIT WOMEN

Start date: July 2007
Phase: Phase 4
Study type: Interventional

The purpose of this Clinical Evaluation is the continued assessment of the XIENCE Everolimus Eluting Coronary Stent System (XIENCE V® and XIENCE PRIME™ EECSS) with the primary focus on clinical outcomes in the treatment of female patients with de novo coronary artery lesions, and the characterization of the female population undergoing stent implantation with a XIENCE stent.

NCT ID: NCT00180479 Completed - Clinical trials for Coronary Artery Disease

SPIRIT III Clinical Trial of the XIENCE V® Everolimus Eluting Coronary Stent System (EECSS)

Start date: June 2005
Phase: Phase 3
Study type: Interventional

This study is divided into 5 arms: 1. Randomized Clinical Trial (RCT): Prospective, randomized, active-controlled, single blind, parallel two-arm multi-center clinical trial in the United States (US) comparing XIENCE V® Everolimus Eluting Coronary Stent System (CSS) (2.5, 3.0, 3.5 mm diameter stents) to the Food and Drug Administration (FDA) approved commercially available active control TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary Stent (TAXUS® EXPRESS2™ PECS) System 2. US 2.25 mm non-randomized arm using 2.25 mm diameter XIENCE V® Everolimus Eluting CSS 3. US 4.0 mm non-randomized arm using 4.0 mm diameter XIENCE V® Everolimus Eluting CSS 4. US 38 mm non-randomized arm using 38 mm in length XIENCE V® Everolimus Eluting CSS 5. Japanese non-randomized arm using XIENCE V® Everolimus Eluting CSS (2.5, 3.0, 3.5, 4.0 mm diameter stents) in Japan The TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary Stent System is Manufactured by Boston Scientific.