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Long-Term Sequential Dual Antiplatelet Therapy Based on Cilostazol in Symptomatic Intracranial Arterial Stenosis (SPDACSIS-RCT)

8 de noviembre de 2026 actualizado por: Second Affiliated Hospital of Soochow University

The Secondary Preventive Effect of Long-term Sequential Dual Antiplatelet Therapy Based on Cilostazol in Cerebral Infarction Patients With Symptomatic Moderate to Severe Intracranial Arterial Stenosis: A Single-Center, Randomized, Open-Label, Blinded-Endpoint Clinical Trial (SPDACSIS-RCT)

This study aims to evaluate whether long-term dual antiplatelet therapy (DAPT) with cilostazol reduces the risk of recurrent symptomatic ischemic stroke or all-cause mortality compared with single antiplatelet therapy (SAPT) in patients with symptomatic moderate-to-severe intracranial arterial stenosis, following the completion of standard DAPT.

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Intervención / Tratamiento

Descripción detallada

Patients with symptomatic intracranial arterial stenosis remain at high risk of recurrent stroke despite standard medical treatment. Although short-term DAPT is recommended, the optimal long-term antiplatelet strategy following standard treatment remains uncertain. Cilostazol-based DAPT may provide additional protection against recurrent ischemic events with an acceptable bleeding risk. Therefore, this study aims to evaluate whether long-term cilostazol-based DAPT reduces the risk of recurrent symptomatic ischemic stroke or all-cause mortality compared to SAPT in patients with symptomatic moderate-to-severe intracranial arterial stenosis.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

480

Fase

  • Fase 4

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

  • Nombre: Yongjun Cao, M.D, PhD
  • Número de teléfono: +86 512 67784789
  • Correo electrónico: yongjuncao@126.com

Ubicaciones de estudio

  • Porcelana
    • Jiangsu
      • Suzhou, Jiangsu, Porcelana, 215004
        • Reclutamiento
        • Second Affiliated Hospital of Soochow University
        • Contacto:
          • Yongjun Cao, M.D, PhD
          • Número de teléfono: +86 512 67784789
          • Correo electrónico: yongjuncao@126.com

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 a 80 años (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  1. Age: 18-80 years old.
  2. Acute mild non-cardioembolic stroke.
  3. Ischemic stroke or transient ischemic attack (TIA) occurring 2 to 4 weeks prior to enrollment.
  4. NIHSS score ≤15 at enrollment and pre-stroke mRS score ≤2.
  5. Ischemic stroke or TIA attributable to the territory of the qualifying intracranial artery.
  6. Symptomatic 70%-99% intracranial atherosclerotic stenosis confirmed by DSA, CTA, or MRA.
  7. Completion of 3 months of standard dual antiplatelet therapy (DAPT).
  8. Medication adherence ≥80% during the 3 months of standard DAPT.
  9. High risk for recurrent stroke (defined by at least one prespecified high-risk feature) at the second screening after 3 months of standard DAPT.
  10. No intracranial endovascular or surgical revascularization within the preceding 3 months.
  11. No newly developed contraindications to cilostazol-based DAPT or single antiplatelet therapy.
  12. Signed informed consent by the patient or legally authorized representative.

Exclusion Criteria:

  1. High-risk cardioembolic source requiring or potentially requiring long-term anticoagulation, including persistent or paroxysmal atrial fibrillation, mechanical heart valve or severe valvular disease, intracardiac thrombus, recent myocardial infarction with significant wall-motion abnormality, or severe cardiomyopathy.
  2. Stroke or TIA caused by nonatherosclerotic disease, including moyamoya disease, vasculitis, arterial dissection, or other definite nonatherosclerotic causes.
  3. Known allergy or serious adverse reaction to cilostazol, aspirin, clopidogrel, ticagrelor, or other antiplatelet agents.
  4. Current or previous severe heart failure.
  5. Severe bleeding event within the previous 6 months, including spontaneous intracranial hemorrhage, major gastrointestinal bleeding, or other bleeding requiring blood transfusion.
  6. Significant bleeding tendency or coagulation abnormality.
  7. Medical condition requiring long-term oral anticoagulation.
  8. Active malignancy or other serious illness with a life expectancy of less than 1 year.
  9. Severe cognitive impairment or psychiatric illness that would prevent adherence to study treatment or long-term follow-up.

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: Prevención
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Único

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Cilostazol-Based Dual Antiplatelet Therapy

Participants will receive cilostazol 50 mg twice daily in combination with one antiplatelet agent: aspirin 100 mg once daily, clopidogrel 75 mg once daily, or ticagrelor 90 mg twice daily, for 12 months.
Droga: Cilostazol

Cilostazol 50 mg twice daily for 12 months. Cilostazol is administered in the experimental arm in combination with one antiplatelet agent: aspirin, clopidogrel, or ticagrelor.

Droga: Aspirin

Aspirin 100 mg once daily for 12 months. Aspirin may be administered in combination with cilostazol in the experimental arm or as single antiplatelet therapy in the active comparator arm.

Droga: Clopidogrel

Clopidogrel 75 mg once daily for 12 months. Clopidogrel may be administered in combination with cilostazol in the experimental arm or as single antiplatelet therapy in the active comparator arm.

Droga: Ticagrelor

Ticagrelor 90 mg twice daily for 12 months. Ticagrelor may be administered in combination with cilostazol in the experimental arm or as single antiplatelet therapy in the active comparator arm.
Comparador activo: Single Antiplatelet Therapy

Participants will receive single antiplatelet therapy with aspirin 100 mg once daily, clopidogrel 75 mg once daily, or ticagrelor 90 mg twice daily, for 12 months.
Droga: Aspirin

Aspirin 100 mg once daily for 12 months. Aspirin may be administered in combination with cilostazol in the experimental arm or as single antiplatelet therapy in the active comparator arm.

Droga: Clopidogrel

Clopidogrel 75 mg once daily for 12 months. Clopidogrel may be administered in combination with cilostazol in the experimental arm or as single antiplatelet therapy in the active comparator arm.

Droga: Ticagrelor

Ticagrelor 90 mg twice daily for 12 months. Ticagrelor may be administered in combination with cilostazol in the experimental arm or as single antiplatelet therapy in the active comparator arm.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Time to First Recurrent Symptomatic Ischemic Stroke or All-Cause Death
Periodo de tiempo: From randomization through 12 months

Time from Day 90 randomization to the first occurrence of recurrent symptomatic ischemic stroke or death from any cause.
From randomization through 12 months

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Incidence of Any Stroke
Periodo de tiempo: 12 months

Occurrence of any ischemic or hemorrhagic stroke during follow-up.
12 months
Incidence of Hemorrhagic Stroke
Periodo de tiempo: 12 months

Occurrence of symptomatic intracranial hemorrhage or subarachnoid hemorrhage.
12 months
Incidence of Ischemic Stroke or Transient Ischemic Attack
Periodo de tiempo: Time Frame

Occurrence of ischemic stroke or transient ischemic attack during follow-up.
Time Frame
Modified Rankin Scale Score
Periodo de tiempo: 12 months

Functional outcome assessed using the Modified Rankin Scale (mRS), ranging from 0 to 6. A score of 0 indicates no symptoms, whereas a score of 6 indicates death. Higher scores represent greater disability and worse functional outcomes.(0 = no symptoms; 1 = no significant disability despite symptoms; 2 = slight disability, unable to perform all previous activities but able to manage personal affairs without assistance; 3 = moderate disability, requiring some help but able to walk without assistance; 4 = moderately severe disability, unable to walk without assistance and unable to attend to bodily needs without assistance; 5 = severe disability, bedridden, incontinent, and requiring constant nursing care and attention; and 6 = death.)
12 months
Incidence of All Vascular Events
Periodo de tiempo: 12 months

Composite vascular events including stroke, myocardial infarction, and other vascular events such as aortic dissection, aortic rupture, pulmonary embolism, hospitalization for heart failure, angina or peripheral artery disease, and coronary, aortic, cervicocephalic, or peripheral arterial revascularization.
12 months

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Major Bleeding
Periodo de tiempo: 12 months

Number and proportion of participants who experience bleeding classified as Bleeding Academic Research Consortium (BARC) grade 3 or higher during follow-up.
12 months
Incidence of Adverse Events
Periodo de tiempo: 12 months

Occurrence of any adverse event during the 12-month treatment and follow-up period.
12 months
Incidence of Cilostazol-Related Adverse Events Leading to Treatment Discontinuation
Periodo de tiempo: 12 months

Number and proportion of participants in the cilostazol-based dual antiplatelet therapy group who discontinue cilostazol because of cilostazol-related adverse events, including headache, diarrhea, abnormal stools, palpitations, tachycardia, dizziness, or other adverse reactions considered related to cilostazol.
12 months

Colaboradores e Investigadores

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

Patrocinador

Second Affiliated Hospital of Soochow 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 (Actual)

21 de marzo de 2026

Finalización primaria (Estimado)

28 de febrero de 2029

Finalización del estudio (Estimado)

30 de junio de 2029

Fechas de registro del estudio

Enviado por primera vez

2 de noviembre de 2026

Primero enviado que cumplió con los criterios de control de calidad

8 de noviembre de 2026

Publicado por primera vez (Actual)

12 de noviembre de 2026

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

8 de noviembre de 2026

Última verificación

1 de noviembre de 2026

Más información

Términos relacionados con este estudio

Palabras clave

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • LK2026004
  • SYW2026005 (Otro número de subvención/financiamiento: SuZhou Municipal Health Commission)

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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