A Comparison of Optical Coherence Tomography Guidance and Angiography-only Guidance for Percutaneous Coronary Intervention With Bioresorbable Vascular Scaffold
26 de julio de 2016 actualizado por: Yonsei University
A Randomized Controlled Comparison of Optical Coherence Tomography Guidance and Angiography-only Guidance for Percutaneous Coronary Intervention With Bioresorbable Vascular Scaffold
It is well-known that non-optimal stent implantation associated with under-expansion or incomplete strut apposition during percutaneous coronary intervention (PCI) leads to a higher incidence of restenosis and stent thrombosis.
OCT-guided PCI with metallic stent has previously been shown to be safe and feasible, resulting in better clinical outcomes compared with angiography-only guided PCI.
Everolimus-eluting bioabsorbable vascular scaffold (BVS; Abbott Vascular, Santa Clara, CA, USA) was made from a bioabsorbable polylactic acid backbone which is coated with a more rapidly absorbed polylactic acid layer that contains and controls the release of the antiproliferative drug, everolimus.
BVS has a number of proposed advantages over current metallic stent technology.
These include elimination of chronic sources of vessel irritation and inflammation, which can reduce the potential risk of late scaffold thrombosis after complete scaffold bioresorption.
Although the current generation of the Absorb BVS have larger strut thickness of 150 μm compared with 80 μm of strut of Xience stent, the acute recoil of the polymeric device was similar to that of metallic stent.
However, operators tented to use dilating devices less aggressively because of the concerns about limitation in elongation-at-break of polylactide.
Previous studies reported 20-30% of under-expansion or malapposition with BVS, which would increase the risk of adverse events including late stent thrombosis.
OCT-guidance may improve more optimized scaffold placement and also better outcomes.
Therefore, investigators will compare OCT guidance and angiography-only guidance for PCI with BVS regarding incomplete scaffold apposition and neointimal scaffold coverage.
Investigators are also going to compare these two strategies regarding clinical outcomes with verification of the cut-off value by OCT-acquired uncovered scaffold rate.
Descripción general del estudio
Estado
Terminado
Condiciones
Tipo de estudio
Intervencionista
Inscripción (Actual)
13
Fase
- No aplica
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Ubicaciones de estudio
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Seoul, Corea, república de, 120-752
- Division of Cardiology, Department of Internal Medicine, Yonsei University College of Medicine
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
19 años y mayores (Adulto, Adulto Mayor)
Acepta Voluntarios Saludables
No
Géneros elegibles para el estudio
Todos
Descripción
Inclusion Criteria:
- Patients ≥ 19 years old
- Patients with ischemic heart disease who are considered for coronary revascularization with PCI
- Significant coronary de novo lesion (stenosis > 70% by quantitative angiographic analysis) treated by single BVS ≤ 25mm
- Reference vessel diameter of 2.5 to 3.5 mm by operator assessment
Exclusion Criteria:
- Myocardial infarction
- Complex lesion morphologies such as aorta-ostial, unprotected left main, chronic total occlusion, graft, thrombosis, and restenosis
- Reference vessel diameter <2.5 mm or >3.5 mm
- Heavy calcified lesions (definite calcified lesions on angiogram)
- Lesions requiring 2 or more BVS
- Contraindication or hypersensitivity to anti-platelet agents or contrast media
- Treated with any metallic stent or BVS within 3 months at other vessel
- Creatinine level ≥ 2.0 mg/dL or ESRD
- Severe hepatic dysfunction (3 times normal reference values)
- Pregnant women or women with potential childbearing
- Inability to follow the patient over the period of 1 year after enrollment, as assessed by the investigator
- Inability to understand or read the informed content
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
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Comparador activo: Angiography-guidance
Everolimus-eluting bioresorbable vascular scaffold (Absorb, Abbott Vascular, Santa Clara, CA, USA) was made from a bioabsorbable polylactic acid backbone which is coated with a more rapidly absorbed polylactic acid layer that contains and controls the release of the antiproliferative drug, everolimus.
PCI will be performed with BVS under conventional coronary angiography without any other intravascular imaging modality.
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Everolimus-eluting bioresorbable vascular scaffold (Absorb, Abbott Vascular, Santa Clara, CA, USA) was made from a bioabsorbable polylactic acid backbone which is coated with a more rapidly absorbed polylactic acid layer that contains and controls the release of the antiproliferative drug, everolimus.
PCI will be performed with BVS under conventional coronary angiography without any other intravascular imaging modality.
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Experimental: OCT-guidance
Everolimus-eluting bioresorbable vascular scaffold (Absorb, Abbott Vascular, Santa Clara, CA, USA) was made from a bioabsorbable polylactic acid backbone which is coated with a more rapidly absorbed polylactic acid layer that contains and controls the release of the antiproliferative drug, everolimus.
For optimized PCI, both conventional coronary angiography and optical coherence tomography can be used before and after stent implantation.
OCT study should be checked at the final post-procedure and stent implantation is optimized.
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Everolimus-eluting bioresorbable vascular scaffold (Absorb, Abbott Vascular, Santa Clara, CA, USA) was made from a bioabsorbable polylactic acid backbone which is coated with a more rapidly absorbed polylactic acid layer that contains and controls the release of the antiproliferative drug, everolimus.
For optimized PCI, both conventional coronary angiography and optical coherence tomography can be used before and after stent implantation.
OCT study should be checked at the final post-procedure and stent implantation is optimized.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Percentage of uncovered scaffold struts
Periodo de tiempo: six months
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Percentage of uncovered scaffold struts between OCT guidance vs. angiography-only guidance PCI on 6 month OCT
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six months
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Major cardiac and cerebrovascular adverse events (MACCEs)
Periodo de tiempo: until one year
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Cardiac death, myocardial infarction, target vessel revascularization, stent thrombosis, cerebrovascular accident and major bleeding between OCT guidance vs. angiography-only guidance PCI until 12 months *Major bleeding ; causing mortality, hypovolemic shock or severe hypotension requiring inotropes or surgery, intrapericardial with tamponade, significant disabling (e.g. intraocular bleeding leading to loss of vision), symptomatic intracranial haemorrhage, intraocular bleeding leading to loss of vision, hemoglobin drop ≥ 3g/dL, or requiring transfusion more than 2 units |
until one year
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Percentage of incomplete scaffold struts apposition
Periodo de tiempo: six months after stent implantation
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Scaffold strut malapposition: Malapposition is defined by a clear seperation between the abluminal side of the strut and the vessel wall.
As a result, scaffold malapposition is defined as the presence of any malapposed struts.
percentage of malapposed struts (% malapposed strut) was the ratio of malapposed struts from total analyzable struts.
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six months after stent implantation
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio
1 de junio de 2015
Finalización primaria (Actual)
1 de mayo de 2016
Finalización del estudio (Actual)
1 de junio de 2016
Fechas de registro del estudio
Enviado por primera vez
3 de junio de 2015
Primero enviado que cumplió con los criterios de control de calidad
4 de junio de 2015
Publicado por primera vez (Estimar)
9 de junio de 2015
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
27 de julio de 2016
Última actualización enviada que cumplió con los criterios de control de calidad
26 de julio de 2016
Última verificación
1 de julio de 2016
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 1-2015-0019
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