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Ultra-early Identification of Futile Recanalization After Reperfusion Therapy in Acute Ischemic Stroke Based on Cerebral Autoregulation Monitoring (FACTOR)

14 de agosto de 2026 actualizado por: Shen Li, Beijing Shijitan Hospital, Capital Medical University

Ultra-early Identification of Futile Recanalization After Reperfusion Therapy in Acute Ischemic Stroke Based on Cerebral Autoregulation Monitoring: a Multicenter, Prospective, Interventional Study

This multicenter, prospective, and interventional diagnostic accuracy study enrolls patients undergoing thrombectomy with intraoperative cerebral autoregulation monitoring and follows them up at predefined time points up to 90 days post-enrollment.This study aims to evaluate a monitoring system based on cerebral autoregulation function and explore its predictive value for adverse neurological outcomes at the ultra-early stage following mechanical thrombectomy.

Descripción general del estudio

Tipo de estudio

Intervencionista

Inscripción (Estimado)

227

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.

Estudio Contacto

Copia de seguridad de contactos de estudio

  • Nombre: Simeng Wang
  • Número de teléfono: 010-63925615
  • Correo electrónico: wsm990419@163.com

Ubicaciones de estudio

      • Beijing, Porcelana
        • Reclutamiento
        • Beijing Shijitan Hospital, Capital Medical University
        • Investigador principal:
          • Shen Li
        • Contacto:
      • Dalian, Porcelana
        • Aún no reclutando
        • Central Hospital of Dalian University of Technology (Dalian Municipal Central Hospital)
        • Contacto:
        • Investigador principal:
          • Xiaoyan Lan
      • Heilongjiang, Porcelana
        • Aún no reclutando
        • The First Affiliated Hospital of Harbin Medical University
        • Investigador principal:
          • Guang Zhang
        • Contacto:
      • Shandong, Porcelana
        • Reclutamiento
        • Weifang People's Hospital Affiliated to Weifang Medical University
        • Investigador principal:
          • Weili Li
        • Contacto:

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

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Descripción

Inclusion Criteria:

  1. Age ≥ 18
  2. Diagnosis of acute ischemic stroke caused by anterior circulation large vessel occlusion (intracranial internal carotid artery or M1 segment of the middle cerebral artery).
  3. National Institutes of Health Stroke Scale (NIHSS) score ≥ 6 at presentation.
  4. Pre-stroke modified Rankin Scale (mRS) score ≤ 1.
  5. Symptom onset ≤ 24 hours.
  6. For patients with symptom onset within 6 hours: ASPECTS ≥ 6; for patients with symptom onset between 6 and 24 hours: age ≤ 80 years and ASPECTS ≥ 3.
  7. Underwent mechanical thrombectomy and achieved successful recanalization (mTICI 2b-3).
  8. Patient or legally authorized representative provides written informed consent.

Exclusion Criteria:

  1. Pre-procedural baseline imaging showing significant intracranial hemorrhagic transformation, intracranial arterial dissection, large chronic cerebral infarction, or intracranial metastasis from malignant tumors.
  2. Any degree of stenosis, plaque, dissection, severe tortuosity, or imaging evidence of unstable/vulnerable plaque in the target-side or bilateral common carotid artery or the origin of the internal carotid artery.
  3. Known history of carotid sinus hypersensitivity syndrome, severe autonomic dysfunction, sick sinus syndrome, high-grade atrioventricular conduction block, or other malignant arrhythmias.
  4. Refractory malignant hypertensive crisis (systolic blood pressure persistently ≥ 200 mmHg despite standardized intravenous antihypertensive therapy, or hemodynamic instability with shock).
  5. Known severe allergy to contrast agents or anesthetic drugs, or contraindications to antiplatelet/anticoagulation therapy.
  6. Severe systemic active infection, multiple organ failure, or expected survival < 6 months.
  7. Severe hepatic or renal dysfunction (ALT/AST > 3× upper limit of normal; estimated glomerular filtration rate < 30 mL/min) or severe coagulation disorders (platelet count < 40 × 10⁹/L, APTT > 50 s, INR > 3.0).
  8. Blood glucose < 2.7 mmol/L or > 22.2 mmol/L.
  9. Heart failure with NYHA class > II, or persistent systolic blood pressure < 100 mmHg.
  10. Central nervous system infection or intracranial tumor.
  11. Unstable vital signs.
  12. Severe alcohol dependence or drug dependence.
  13. Cognitive impairment or psychiatric disorders that may affect follow-up assessments.
  14. Pregnant or breastfeeding women.
  15. Participation in another clinical drug or device study within the past 30 days.
  16. Local skin damage or other conditions preventing proper placement of monitoring electrodes.
  17. Severe agitation or other conditions that interfere with data acquisition.
  18. Any other condition judged by investigators to potentially affect study results.

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: Diagnóstico
  • Asignación: N / A
  • Modelo Intervencionista: Asignación de un solo grupo
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Cerebral Autoregulation Monitoring After Mechanical Thrombectomy
Participants with acute intracranial large vessel occlusion in the anterior circulation who achieve successful recanalization (mTICI 2b-3) after mechanical thrombectomy will undergo bedside cerebral autoregulation monitoring. Monitoring includes continuous near-infrared spectroscopy (NIRS) to record cerebral oxygen saturation and continuous noninvasive or invasive blood pressure measurement for 25-30 minutes immediately after recanalization. A carotid compression test is performed to dynamically assess cerebral autoregulation.
Bedside multimodal cerebral autoregulation monitoring performed immediately after successful mechanical thrombectomy (mTICI 2b-3). Monitoring includes continuous near-infrared spectroscopy (NIRS) to record cerebral oxygen saturation and continuous noninvasive or invasive arterial blood pressure measurement for 25-30 minutes. Cerebral oxygenation index (COx) is calculated as a moving Pearson correlation coefficient between mean arterial pressure and cerebral oxygen saturation over 30 consecutive 10-second epochs (300 seconds). COx ≥ 0.3 indicates impaired cerebral autoregulation, while COx < 0.3 indicates preserved autoregulation. Changes in cerebral oxygen saturation before and after carotid compression are also used to assess autoregulatory.
A carotid compression test is performed by compressing the common carotid artery at the lower one-third of the neck (avoiding the carotid sinus) against the transverse process of C6 until pulsation disappears for 5-10 seconds, followed by release. If the brain oxygen saturation has increased compared to before the test, it indicates that the brain's automatic blood flow regulation function is intact; conversely, if it has decreased, it is regarded as a damaged automatic blood flow regulation function of the brain.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Distribution of Modified Rankin scale
Periodo de tiempo: 90±7days
the distribution of Modified Rankin scale (mRS) [ranging from 0 (normal) to 6 (death)]
90±7days

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Early neurological improvement
Periodo de tiempo: 24±12 hours
Early neurological improvement is defined as a reduction of ≥8 on the National Institutes of Health Stroke Scale [ranging from 0 to 42 points, with higher numbers indicating greater severity] or National nstitutes of Health Stroke Scale zero to one 24 hours after thrombectomy.
24±12 hours

Colaboradores e Investigadores

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

Investigadores

  • Investigador principal: Shen Li, Beijing Shijitan Hospital, Capital Medical University

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 (Estimado)

31 de julio de 2026

Finalización primaria (Estimado)

31 de enero de 2027

Finalización del estudio (Estimado)

5 de febrero de 2027

Fechas de registro del estudio

Enviado por primera vez

31 de julio de 2026

Primero enviado que cumplió con los criterios de control de calidad

31 de julio de 2026

Publicado por primera vez (Actual)

5 de agosto de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

17 de agosto de 2026

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

14 de agosto de 2026

Última verificación

1 de agosto de 2026

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Descripción del plan IPD

The deidentified individual participant data underlying this article will not be publicly available. However, the data may be made available to researchers upon reasonable request to the corresponding author, subject to approval by the institutional review board and execution of a data access agreement.

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.

No

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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