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Cerebral Blood Flow-guided Early Rehabilitation Intervention After Stroke: a Pilot Randomized Trial (STAND-OP) (STAND-OP)

Cerebral Blood Flow-guided Early Rehabilitation Intervention After Stroke: a Pilot Randomized Trial

The primary goal of most acute stroke interventions is to restore cerebral blood flow (CBF) in the affected region and prevent hypoperfusion during early clinical course. Diffuse optical technology offers a new opportunity for invasive, real time and bedside assessment of brain function biomarkers, including CBF. However, whether CBF monitoring can identify patients who are most likely to benefit from therapies is unclear Recently, it was suggested that the benefit of early mobilization (EM) after stroke on motor recovery may be outweighed by a deleterious effect on cerebral perfusion if cerebral autoregulation (CA) is impaired. Hypothetically, EM could improve recovery outcomes after stroke in selected patients based on CA function. Our objective is to investigate if EM leads to superior motor and functional outcome after stroke compared to standard care (SC) in selected patients based on optical biomarkers of CA and evaluate the feasibility of the clinical use of a novel transcranial optical monitoring system adapted to deliver biomarkers of CA at the bedside. The investigators designed a randomized controlled, open-labeled trial with blinded assessment of outcome end-points in a stroke unit of a tertiary stroke center. Patients with an ischemic or hemorrhagic stroke will be recruited and randomly assigned within 24 hours after symptoms onset to receive SC alone or EM in addition to SC. All patients will undergo optical monitoring of CA on admission to the Stroke Unit during the first mobilization. Randomization will be stratified by stroke severity and type of stroke. Clinical outcome will be assessed with the Postural Assessment Scale for Stroke (PASS) and modified Rankin scale at 90 days. Safety outcome will be assessed by recording the incidence of neurological deterioration, recurrence and falls.

Descripción general del estudio

Estado

Terminado

Descripción detallada

Background: The primary goal of most acute stroke interventions is to restore cerebral blood flow (CBF) in the affected region and prevent hypoperfusion during early clinical course. Diffuse optical technology offers a new opportunity for invasive, real time and bedside assessment of brain function biomarkers, including CBF.

However, whether CBF monitoring can identify patients who are most likely to benefit from therapies is unclear. The results of AVERT trial suggested that the benefit of early mobilization (EM) after stroke on functional outcome may be outweighed by a hypothetical deleterious effect on cerebral perfusion if cerebral autoregulation (CA) is impaired. EM could improve recovery outcomes after stroke in selected patients based on the status of CA function.

Objectives: 1) to investigate if EM leads to superior motor and functional outcome after stroke compared to standard care (SC) in selected patients based on optical biomarkers of CA. 2) To evaluate the feasibility of the clinical use of a novel transcranial optical monitoring system adapted to deliver biomarkers of CA at the bedside.

Methodology: A randomized controlled, open-labeled trial with blinded assessment of outcome end-points in a stroke unit of a tertiary stroke center. Patients with an ischemic or hemorrhagic stroke will be randomly assigned within 24 hours after symptoms onset to receive SC alone or EM in addition to SC. All patients will undergo optical monitoring of CA on admission to the Stroke Unit. Randomization will be stratified according to stroke severity measured with the National institute of Health Stroke Scale (NIHSS) and type of stroke (ischemic or hemorrhagic). Clinical outcome will be assessed with the Postural Assessment Scale for Stroke (PASS) and modified Rankin scale at 90 days. Safety outcome will be assessed by recording the incidence of neurological deterioration, recurrence and falls.

Expected results: to provide a new in vivo biomarker of cerebrovascular function for more accurate and earlier prediction of response to therapy, leading to improved clinical decisions and outcomes.

Tipo de estudio

Intervencionista

Inscripción (Actual)

106

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

      • Barcelona, España, 08025
        • Hospital Santa Creu i Sant Pau

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

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • Patients 18 years or over, with a clinical diagnosis of first or recurrent stroke, either ischemic or hemorrhagic.
  • Recruitment within 24 hours of onset of stroke symptoms.
  • Admission to the stroke unit
  • Informed consent obtained from the patient or responsible third party

Exclusion Criteria:

  • Pre-stroke modified Rankin scale score >3
  • Transient ischemic attacks
  • Exclusively retinal stroke
  • Deterioration in patient´s neurological condition in the first hours of admission resulting in urgent surgery, admission to ICU or a documented decision for palliative care.
  • Unstable medical condition
  • A suspected or confirmed lower limb fracture at the time of stroke preventing the implementation of the mobilization protocol.

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: Único

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Comparador activo: Standard care group
Standard of care (SC) mobility protocol performed by the Stroke Unit nursing and physiotherapy staff. The SC consists of one or two sessions per days of out-of-bed sitting and standing, adapted to patient´s tolerability, and one session of physiotherapy per day. Mobilization will be schedule to start from 24 hours from symptoms onset according to the local Stroke Unit protocol.
Standard protocol of mobilization in acute stroke patients admitted to the Stroke Unit at the discretion of the nursing and physiotherapy staff
Experimental: Intensive mobilization group
The Intensive mobilization intervention will include the standard care plus at least two additional sessions each day of at least 20 minutes each session focused on task specific sitting, standing and walking activities. The intervention will be schedule to start at 24 hours from symptoms onset and will last 14 days or until the patient is discharged.
Additional 2 or more sessions of out-of-bed activity to the standard stroke care, focused in active sitting, standing and walking assisted by physiotherapists

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Postural Assessment Scale for Stroke
Periodo de tiempo: 90 days
Balance and mobility assessed with the Postural Assessment Scale for Stroke patients (PASS), in its validated Spanish version. The PASS contains 12 four-level items of varying difficulty for assessing ability to maintain or change a given lying, sitting, or standing posture. Each item is scored from 0 to 3, with 0 being the lowest level of functionality and 3 the highest. The total score ranges from 0 to 36 (highest score best).
90 days

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Health-related quality of life
Periodo de tiempo: Discharge and 90 days
Assessment of Quality of life with the questionnaire EuroQol 5 Dimensions (5D) 5 Levels (5L) (EQ-5D-5L), where 1 means no problems and 5 means extreme problems in each dimension (mobility, self-care, usual activities, pain/discomfort and anxiety/depression).
Discharge and 90 days
Modified Rankin scale
Periodo de tiempo: 90 days
Functional assessment with the modified Rankin scale (0 to 6, highest score worse).
90 days
Neurological deterioration measured with the NIHSS
Periodo de tiempo: 14 days
Neurological deterioration during hospitalization measured as an increase in the NIHSS score in 2 or more points score (early at 24 hours and during the intervention)
14 days
Recurrent Stroke
Periodo de tiempo: 90 days
Stroke recurrence during hospitalization
90 days
Falls after stroke
Periodo de tiempo: 90 days
Reported incidence of Falls after stroke
90 days

Colaboradores e Investigadores

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

Investigadores

  • Investigador principal: Raquel Delgado-Mederos, MD, PhD, Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau

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)

2 de abril de 2019

Finalización primaria (Actual)

18 de octubre de 2021

Finalización del estudio (Actual)

18 de octubre de 2021

Fechas de registro del estudio

Enviado por primera vez

6 de abril de 2021

Primero enviado que cumplió con los criterios de control de calidad

13 de abril de 2021

Publicado por primera vez (Actual)

19 de abril de 2021

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

10 de diciembre de 2021

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

29 de noviembre de 2021

Última verificación

1 de noviembre de 2021

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.

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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