E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Acute Ischemic Stroke |
Ictus isquémico agudo de circulación anterior secundario a lesión en tándem |
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E.1.1.1 | Medical condition in easily understood language |
Acute Ischemic Stroke |
Accidente cerebrovascular isquémico agudo |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cardiovascular Diseases [C14] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 22.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10055221 |
E.1.2 | Term | Ischemic stroke |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 22.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10061256 |
E.1.2 | Term | Ischaemic stroke |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
|
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLT |
E.1.2 | Classification code | 10008192 |
E.1.2 | Term | Cerebrovascular and spinal necrosis and vascular insufficiency |
E.1.2 | System Organ Class | 10047065 - Vascular disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | HLGT |
E.1.2 | Classification code | 10003216 |
E.1.2 | Term | Arteriosclerosis, stenosis, vascular insufficiency and necrosis |
E.1.2 | System Organ Class | 10047065 - Vascular disorders |
|
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | SOC |
E.1.2 | Classification code | 10047065 |
E.1.2 | Term | Vascular disorders |
E.1.2 | System Organ Class | 10047065 - Vascular disorders |
|
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess the efficacy and safety of the use of tirofiban versus aspirin in patients with ischemic stroke secondary to tandem injury, by determining the rate of reocclusion as well as determining the rate of symptomatic bleeding defined as any hemorrhagic transformation associated with a worsening of 4 or more points on the National Institutes of Health Stroke Scale. |
Valorar la eficacia y la seguridad del uso de tirofiban frente a aspirina en pacientes con ictus isquémico secundario a lesión en tándem, mediante la determinación de la tasa de reoclusión así como la determinación de la tasa de hemorragia sintomática definida como cualquier transformación hemorrágica asociada a un empeoramiento de 4 o más puntos en la escala National Institutes of Health Stroke Scale. |
|
E.2.2 | Secondary objectives of the trial |
- Determine the rescue therapy rate in the presence of intra-stent aggregation phenomena during the procedure - Detection of good functional prognosis rates at 90 days in the different subgroups (defined as a score on the modified Rankin scale (mRS) between 0-2). - Improve the pathophysiological knowledge of the complications associated with the endovascular treatment of tandem lesions (re-occlusion) through the identification of related plasma biomarkers. - Assessment of any of the biomarkers identified as a therapeutic target for reocclusion. - Reocclusion or significant restenosis at 30 days. |
- Determinar la tasa de terapia de rescate ante la presencia de fenómenos de agregación intra-stent durante el procedimiento - Detección de las tasas de buen pronóstico funcional a los 90 días en los diferentes subgrupos (definido como una puntuación en la escala de Rankin modificada (mRS) entre 0-2). - Mejorar el conocimiento fisiopatológico de las complicaciones asociadas al tratamiento endovascular de las lesiones en tándem (re-oclusión) a través de la identificación de biomarcadores plasmáticos relacionados. - Valoración de alguno de los biomarcadores identificados como diana terapéutica de reoclusión. - Reoclusión o reestenosis significativa a los 30 días. |
|
E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Sub-study of Blood Biomarkers, Version 1.0 (10/December/21).
Objectives: - Improve the pathophysiological knowledge of the complications associated with the endovascular treatment of tandem lesions (re-occlusion) through the identification of related plasma biomarkers - Assessment of some of the biomarkers identified as a therapeutic target for reocclusion. |
Sub-estudio de Biomarcadores sanguíneos, Version 1.0 (10/December/21).
Objetivos: - Mejorar el conocimiento fisiopatológico de las complicaciones asociadas al tratamiento endovascular de las lesiones en tándem (re-oclusión) a través de la identificación de biomarcadores plasmáticos relacionados
- Valoración de alguno de los biomarcadores identificados como diana terapéutica de reoclusión. |
|
E.3 | Principal inclusion criteria |
• Patients with acute ischemic stroke of the anterior territory secondary to a tandem lesion, with an indication for thrombectomy treatment according to the current recommendations of the Clinical Practice Guidelines, and the need for cervical stent placement. • The intracranial occlusion locations that may be included are: carotid "T", M1 and M2 segments of the middle cerebral artery, segment A1 of the anterior cerebral artery; and in the case that the posterior cerebral artery has fetal origin and is the site of intracranial occlusion. • ASPECTS (Alberta Stroke Program Early computerized Tomography Score) ≥6. • Greater than or equal to 18 years of age. • Signed informed consent. |
• Pacientes con ictus isquémico agudo de territorio anterior secundario a lesión en tándem, con indicación de tratamiento de trombectomía, y necesidad de colocación de stent cervical. • Las localizaciones de oclusión intracraneal que podrán ser incluidas son: “T” carotídea, segmentos M1 y M2 de arteria cerebral media, segmento A1 de arteria cerebral anterior; y en el caso de que la arteria cerebral posterior tenga origen fetal y sea el lugar de oclusión intracraneal. • ASPECTS (Alberta Stroke Program Early CT Score) ≥6. • Mayor o igual a 18 años de edad. • Consentimiento informado firmado. |
|
E.4 | Principal exclusion criteria |
• Patients under 18 years of age. • Patients with ASPECTS <6. • Bilateral strokes or those produced by simultaneous occlusion of an artery in the anterior and posterior territory. • Patients whose carotid stenosis is due to a re-stenosis or reocclusion of a pre-existing cervical stent. • Candidate patients for carotid puncture. • Previous treatment with double antiplatelet therapy for another cause prior to inclusion. • Severe comorbidity and / or reduced life expectancy. • Modified Rankin scale (mRS)> 2. • Severe allergy to contrast medium. • Pregnant. • Patients with intracranial occlusive arteriosclerotic disease or extra or intracranial dissection. • Documented allergy to acetylsalicylic acid or Tirofiban. • Personal history of platelet penia (Platelets <100,000) • Concomitant anticoagulant treatment (with presence of INR (International Normalized Ratio) > 1.7 in case of anti-vitamin K treatment or taking direct oral anticoagulant <48 hours ago) • Medical history of the patient that carries a high risk of bleeding according to the investigator's criteria. |
• Menores de 18 años. • Pacientes con ASPECTS < 6. • Ictus bilaterales o que se produzcan por oclusión simultánea de alguna arteria de territorio anterior y posterior. • Pacientes cuya estenosis carotidea, sea debida a una re-estenosis o reoclusión de un stent cervical pre-existente. • Pacientes candidatos a punción carotidea. • Tratamiento previo con doble antiagregación por otra causa previa a la inclusión. • Comorbilidad grave y/o esperanza de vida reducida. • Escala de Rankin modificada (mRS) >2. • Alergia grave al medio de contraste. • Embarazadas. • Pacientes con enfermedad arterioclerótica oclusiva intracraneal o disección extra o intracraneal. • Alergia documentada a AAS o a tirofiban. • Antecedente personal de plaquetopenia (Plaquetas <100.000), o de haber desarrollado trombocitopenia durante la administración anterior de antagonistas de los receptores GP IIb/IIIa o de AAS iv. • Tratamiento anticoagulante concomitante (con presencia de INR >1.7 en caso de tratamiento con anti-vitamina K o toma de anticoagulante oral directo hace <48 horas). • Hemorragia activa o reciente (dentro de los 30 días previos al tratamiento antiagregante) clínicamente relevante (p. ej., hemorragia gastrointestinal). • Ulcera péptica activa en los 3 últimos meses. • Antecedente médico del paciente que conlleve elevado riesgo hemorrágico según criterio del investigador. |
|
E.5 End points |
E.5.1 | Primary end point(s) |
1. Carotid Reocclusion. Carotid reocclusion will be assessed on ultrasound doppler within first 24-36 hours after mechanical thrombectomy and it is defined by the presence at the level of the occlusion point, by a characteristic biphasic, brief and low speed pattern both in the Doppler spectrum and in color mode (color image with both orthodromic and antidromic flow, redblue just proximal to the occlusion). In addition, the image detected in mode B will show an anechoic appearance with a false appearance of permeable light, detecting the absence of flow in color and Doppler modes. In addition, carotid reocclusion will be evaluated on angio-Computerized Tomography that will demonstrate complete blockage of the artery.
2. Platelet aggregation phenomena. Parietal irregularity in the intra-stent contrast filling.
3. Symptomatic intracranial hemorrhage (sICH). The sICH is defined as a new intracranial hemorrhage in brain computerized tomography within hospitalization related to an National institute of Health Stroke Scale score increase >4 points compared with stroke admission. |
1. Reoclusión carotídea. La reoclusión carotídea se valorará mediante ecografía doppler en las primeras 24-36 horas tras la trombectomía mecánica y se define por la presencia, a nivel del punto de oclusión, de un patrón característico bifásico, breve y de baja velocidad tanto en el espectro Doppler como en color (imagen en color con flujo ortodrómico y antidrómico, rojo-azul justo proximal a la oclusión). Además, la imagen detectada en modo B mostrará una apariencia anecoica con una falsa apariencia de luz permeable, detectando la ausencia de flujo en el color y Doppler.La reoclusión carotídea se evaluará mediante angio-tomografía computarizada que demostrará el bloqueo completo de la arteria.
2. Fenómenos de agregación plaquetaria. Irregularidad parietal en el relleno de contraste intra-stent.
3. Hemorragia intracraneal sintomática: se define como una nueva hemorragia intracraneal en la tomografía computarizada de cerebro realizada durante la hospitalización relacionada con un aumento de la puntuación de la escala de accidente cerebrovascular (NIHSS) > 4 puntos en comparación con la que presentaba a su ingreso por el accidente cerebrovascular. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
1. Carotid Reocclusion. [Time Frame: Quarterly basis]
2. Platelet aggregation phenomena. [Time Frame: Annually (Single Evaluation)]
3. Symptomatic intracranial hemorrhage (sICH). [Time Frame: Annually ( Single evaluation)] |
1. Reoclusión carotídea. [Evaluación trimestral]
2. Fenómenos de agregación plaquetaria. [Anualmente (evaluación única)]
3. Hemorragia intracraneal sintomática (SICH). [Anualmente (evaluación única)] |
|
E.5.2 | Secondary end point(s) |
Good functional prognosis. Defined as a score on the modified rankin scale (mRS) between 0-2 at 90 days. |
Buen pronóstico funcional. Definido como una puntuación en la escala de rankin modificada (mRS) entre 0-2 a los 90 días. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
Quarterly basis (singe evaluation). |
Trimestral (evaluación única) |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | Yes |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 10 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
LVLS |
Última visita del último paciente |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 5 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 5 |
E.8.9.2 | In all countries concerned by the trial days | 0 |