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La influencia de la modificación de las lesiones coronarias altamente calcificadas en la microcirculación coronaria

10 de noviembre de 2026 actualizado por: Medical University of Silesia

This is a prospective, single-center, three-arm study to evaluate the impact of severely calcified coronary lesions treatment on microvascular circulation. We will enroll 30 conveniently sampled subjects assigned to one of three therapeutical methods lithotripsy, super-high pressure balloon, and orbital atherectomy prior to implantation of drug-eluting stents (DES).

Descripción general del estudio

Descripción detallada

This prospective, non-randomized, single-center study includes subjects who meet all of the inclusion and none of the exclusion criteria and sign the ICF. 30 patients with severe coronary stenosis will be enrolled. The severity will be assessed by Optical Coherence Tomography (OCT) based on the degree of calcification in the coronary lesion as defined by this protocol. Subjects will be assigned to one of three arms (lithotripsy, super-high pressure balloon or orbital atherectomy) followed by an implantation of drug-eluting stents (DES). The aposition and expansion of DES will be evaluated using OCT . Patients will be followed through discharge, 30 days and 12 months.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

30

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

      • Katowice, Polonia, 40-081
        • Upper Silesian Medical Centre

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

18 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • Subjects with native coronary artery disease (including stable or unstable angina and NSTEMI) suitable for PCI.
  • The lesion must be crossable with the study guide wire.
  • The target vessel reference diameter must be ≥ 2.5mm and ≤ 4.0 mm.
  • The target lesion must have evidence of severe calcium deposit at the lesion site based on the protocol criterion.
  • Subject or legally authorized representative, signs a written Informed Consent form to participate in the study, prior to any study-mandated procedures.
  • Male or female, age above or equal to 18 years at the time of signing informed consent.

Further inclusion criteria may apply

Exclusion Criteria:

  • Inability to understand the study or a history of non-compliance with medical advice.
  • Unwilling or unable to sign the Informed Consent Form (ICF).
  • History of any cognitive or mental health status that would interfere with trial participation.
  • Male or female, age under 18 years at the time of signing informed consent.
  • Female subjects who are pregnant or planning to become pregnant within the study period.
  • Subject has a known sensitivity to contrast media, which cannot be adequately pre-medicated.
  • Subject has evidence of an active infection on the day of the procedure requiring oral or intravenous antibiotics.
  • Limited long term prognosis due to other conditions.
  • Subjects in cardiogenic shock or with decompensated heart failure (NYHA class IV).
  • Subject diagnosed with chronic kidney disease stage 4 or greater (eGFR <30).
  • Most recent left ventricular ejection fraction ≤ 20%.
  • Subject is an acceptable candidate for coronary artery bypass surgery.
  • The target vessel reference diameter is under 2.0 mm.
  • Target lesion is located in or supplied by an arterial or venous bypass graft.
  • The target vessel has angiographically visible or suspected thrombus.
  • The target lesion is in an in-stent restenosis.
  • Subject has received a heart transplant.
  • Subject has major valve disease and underwent intervention within 30 days prior to randomization.

Further exclusion criteria may apply

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: No aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Único

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: High-pressure non-compliant balloon

The SIS Medical OPN NC® super high-pressure coronary balloon will be used for balloon angioplasty vessel preparation prior to implantation of a drug-eluting stent.

Calcified lesion preparation using high-pressure non-compliant balloon before implantation of a drug-eluting stent

Optical coherence tomography assessment of coronary arteries.

A coronary thermodilution system used for evaluate differences between the impact of calcified lesion preparation methods on coronary microvascular function.

Experimental: Orbital atherectomy

The Diamondback 360® Coronary Orbital Atherectomy System (OAS) will be used for orbital atherectomy (OA) vessel preparation prior to implantation of a drug-eluting stent.

Optical coherence tomography assessment of coronary arteries.

A coronary thermodilution system used for evaluate differences between the impact of calcified lesion preparation methods on coronary microvascular function.

Calcified lesion preparation using orbital atherectomy before implantation of a drug-eluting stent

Experimental: Lithotripsy

The Shockwave® Medical system will be used for intravascular lithotripsy (IVL) vessel preparation prior to implantation of a drug-eluting stent.

Optical coherence tomography assessment of coronary arteries.

A coronary thermodilution system used for evaluate differences between the impact of calcified lesion preparation methods on coronary microvascular function.

Calcified lesion preparation using lithotripsy before implantation of a drug-eluting stent

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Coronary Flow Reserve (CFR)
Periodo de tiempo: Intraprocedural

Determination of a difference between Coronary Flow Reserve (CFR) at the beginning and at the end of the procedure using CoroFlow™ Cardiovascular System.

Intraprocedural
Index of Microcirculatory Resistance (IMR)
Periodo de tiempo: Intraprocedural

Determination of a difference between Index of Microcirculatory Resistance (IMR) at the beginning and at the end of the procedure using CoroFlow™ Cardiovascular System.

Intraprocedural

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Stent expansion
Periodo de tiempo: Intraprocedural

Stent expansion (%) evaluated by optical coherence tomography.

Intraprocedural
Acceptable stent expansion
Periodo de tiempo: Intraprocedural

Acceptable stent expansion (cut-off value defined as >80%) evaluated by optical coherence tomography.

Intraprocedural
Optimal stent expansion
Periodo de tiempo: Intraprocedural

Optimal stent expansion (cut-off value defined as >90%) evaluated by optical coherence tomography.

Intraprocedural
Minimal lumen diameter (MLD) difference
Periodo de tiempo: Intraprocedural

Determination of a difference between quantitative OCT measured minimal lumen diameter (MLD) at the beginning and at the end of the procedure.

Intraprocedural
Procedural Success
Periodo de tiempo: Up to 3 years

Procedural success - defined as successful stent delivery and angiographic in-vessel residual stenosis <30%, and with the absence of any of the following: stent loss, coronary artery dissection, coronary artery perforation, PCI no reflow phenomenon or MACCE (defined as a composite of cardiovascular death, myocardial infarction at the targeted vessel, targeted coronary vessel revascularization (PCI or CABG), TIA or stroke).

Up to 3 years
Strategy Success
Periodo de tiempo: Intraprocedural

Strategy success - defined as procedural success without crossover to alternative treatment.

Intraprocedural

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
The proportion of subjects that experience Major Adverse Cardiovascular and Cerebrovascular Events (MACCE)
Periodo de tiempo: Up to 3 years

30-day and 1 year MACCE defined as a composite of cardiovascular death, myocardial infarction at the targeted vessel, targeted coronary vessel revascularization (PCI or CABG), TIA or stroke.

Up to 3 years
The proportion of subjects that experience Target Vessel Revascularization (TVR)
Periodo de tiempo: Up to 3 years

30-day and 1 year Target Vessel Revascularization (TVR) - defined as any repeat revascularization at the target vessel (inclusive of the target lesion) and target vessel collaterals after the completion of the procedure.

Up to 3 years
The proportion of subjects that experience Target Lesion Revascularization (TLR)
Periodo de tiempo: Up to 3 years

30-day and 1 year Target Lesion Revascularization (TLR) - defined as repeat intervention PCI or surgery within the index procedure stent or 5mm proximal or distal to the stent.

Up to 3 years
Myocardial infarction (MI) rate at 30-day and 1 year
Periodo de tiempo: Up to 3 years

The proportion of subjects that experience a Myocardial Infarction (MI) at 30-day and 1 year.

Up to 3 years

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Colaboradores

Investigadores

  • Investigador principal: Paweł Gąsior, MD, PhD, Division of Cardiology and Structural Heart Diseases, Medical University of Silesia

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 (Actual)

10 de noviembre de 2026

Finalización primaria (Estimado)

1 de agosto de 2027

Finalización del estudio (Estimado)

1 de diciembre de 2027

Fechas de registro del estudio

Enviado por primera vez

12 de julio de 2024

Primero enviado que cumplió con los criterios de control de calidad

12 de julio de 2024

Publicado por primera vez (Actual)

18 de julio de 2024

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

12 de noviembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

10 de noviembre de 2026

Última verificación

1 de noviembre de 2026

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

Sí

producto fabricado y exportado desde los EE. UU.

Sí

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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