Efficacy and Safety of Eslicarbazepine Acetate as Adjunctive Therapy for Refractory Partial Epilepsy
23 de junio de 2014 actualizado por: Bial - Portela C S.A.
Efficacy and Safety of BIA 2-093 as Adjunctive Therapy for Refractory Partial Seizures in a Double-blind, Randomized, Placebo-controlled, Parallel-group, Multicenter Clinical Trial
The primary objective was to evaluate the efficacy of eslicarbazepine acetate (ESL) administered once daily at 1200 mg or 800 mg, compared with placebo as adjunctive therapy in patients with refractory partial epilepsy over a 12-week maintenance period.
Descripción general del estudio
Estado
Terminado
Condiciones
Intervención / Tratamiento
Descripción detallada
This was a phase III, 2-part multicenter study. Part I was an 26-week parallel-group, randomized, placebo-controlled design consisting of an 8 week baseline period, a 2 week double-blinded titration period, 12 week maintenance period, and a 4 week tapering-off period. After completing the baseline period, patients were randomized in a 1:1:1 ratio to 1 of the 2 ESL daily dose levels (1200 or 800 mg) or placebo.
Part II was a 1-year open-label extension for patients who had completed Part I. Starting at 800 mg/day, the dosage could be titrated at 400 mg intervals down to a minimum of 400 mg/day or up to a maximum of 1200 mg/day. Patients who completed Part II could participate in a study extension and continue treatment with ESL until marketing authorization is obtained or clinical development is discontinued, with visits scheduled at the discretion of the investigator but at least every 6 months.
Results from Part I & II were presented in two separate reports.
Tipo de estudio
Intervencionista
Inscripción (Actual)
253
Fase
- Fase 3
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
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S. Mamede do Coronado, Portugal, 4745-457
- Bial - Portela & Cª, S.A.
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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:
- written informed consent signed by patient
- aged 18 years or more
- documented diagnosis of simple or complex partial seizures with or without secondary generalisation since at least 12 months prior to screening
- at least 4 partial seizures in each 4 week period during the last 8 weeks prior to screening, currently treated with 1 or 2 AEDs (any except oxcarbazepine and felbamate), in a stable dose regimen during at least 2 months prior to screening (patients using vigabatrin should have been on this medication for at least 1 year with no deficit in visual field identified)
- excepting epilepsy, patient is judged to be in general good health based on medical history, physical examination and laboratory tests
- post-menopausal or otherwise incapable of becoming pregnant by reason of surgery or tubal ligation; in case of woman of childbearing potential, patient must present a serum beta-hCG test consistent with a non-gravid state and agree to remain abstinent or use reliable contraception (oral contraception should be combined with a barrier method)
Exclusion Criteria:
- only simple partial seizures with no motor symptomatology (classified as A2-4 according to the International Classification of Epileptic Seizures) that are not video-EEG documented
- primarily generalised epilepsy
- known rapid progressive neurological disorder; history of status epilepticus or cluster seizures (i.e., 3 or more seizures within 30 minutes) within the 3 months prior to screening
- seizures of psychogenic origin within the last 2 years
- history of schizophrenia or suicide attempt
- currently on or with exposure to felbamate or oxcarbazepine more within one month of screening
- using benzodiazepines on more than on an occasional basis (except when used chronically as AED)
- previous use of ESL or participation in a clinical study with ESL
- known hypersensitivity to carbamazepine, oxcarbazepine or chemically related substances
- history of abuse of alcohol, drugs or medications within the last 2 years
- uncontrolled cardiac, renal, hepatic, endocrine, gastrointestinal, metabolic, haematological or oncology disorder
- second or third-degree atrioventricular blockade not corrected with a pacemaker
- relevant clinical laboratory abnormalities
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: Cuadruplicar
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
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Experimental: ESL 800 mg daily (Part I)
ESL 800mg daily
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oral tablet, 800 mg or 1200 mg once daily
Otros nombres:
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Experimental: ESL 1200 mg daily (Part I)
ESL 1200mg daily
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oral tablet, 800 mg or 1200 mg once daily
Otros nombres:
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Comparador de placebos: placebo (Part I)
placebo
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once daily placebo comparator
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Experimental: ESL - Open-label Extension (Part II)
All patients were treated with only ESL during Part II.
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Part II was a 1-year open-label extension for patients who had completed Part I. Starting at 800 mg/day, the dosage could be titrated at 400 mg intervals down to a minimum of 400 mg/day or up to a maximum of 1200 mg/day
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Seizure Frequency
Periodo de tiempo: 12 weeks
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The primary efficacy endpoint is the natural log transformation of the seizure frequency per 4 weeks.
The primary efficacy analysis was based on results for the ITT population during the 12-week maintenance period.
Seizure frequency was compared between each active treatment group and the placebo group using an ANCOVA model with treatment as a factor and seizure frequency as a covariate
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12 weeks
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PART II: Nº of Treatment-Emergent Adverse Events (TEAE)
Periodo de tiempo: 1-year
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The primary objective for Part II of the study was to evaluate the safety and tolerability of eslicarbazepine acetate (ESL, BIA 2-093) at doses titrated to an efficacy or safety endpoint over a 1-year open-label period.
Safety assessments were based primarily on AEs (Number of participants with at least one treatment-emergent adverse events are reported); assessment of AEs was based on treatment relatedness, action taken on study drug, outcome, and causality.
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1-year
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Investigadores
- Investigador principal: Antonio Gil-Nagel, MD, Hospital Ruber Internacional La Masó 38, Mirasierra 28034 Madrid, Spain
- Investigador principal: Jose Lopes-Lima, MD, Hospital Santo António Largo Prof. Abel Salazar, 4099-001 Porto, Portugal
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
1 de diciembre de 2004
Finalización primaria (Actual)
1 de junio de 2008
Finalización del estudio (Actual)
1 de junio de 2008
Fechas de registro del estudio
Enviado por primera vez
10 de agosto de 2009
Primero enviado que cumplió con los criterios de control de calidad
11 de agosto de 2009
Publicado por primera vez (Estimar)
12 de agosto de 2009
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
2 de julio de 2014
Última actualización enviada que cumplió con los criterios de control de calidad
23 de junio de 2014
Última verificación
1 de junio de 2014
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Enfermedades Cerebrales
- Enfermedades del Sistema Nervioso Central
- Enfermedades del Sistema Nervioso
- Epilepsia
- Epilepsias Parciales
- Mecanismos moleculares de acción farmacológica
- Moduladores de transporte de membrana
- Anticonvulsivos
- Bloqueadores de canales de sodio activados por voltaje
- Bloqueadores de canales de sodio
- Acetato de eslicarbazepina
Otros números de identificación del estudio
- BIA-2093-303
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