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- Ensayo clínico NCT01033084
Efficacy Study of Transcranial Direct Current Stimulation to Treat Major Depressive Disorder (SELECT-TDCS)
A Factorial, Double-blinded, Randomized Clinical Trial on Major Depressive Disorder Using Transcranial Direct Current Stimulation
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
Major Depressive Disorder (MDD) is a common mental disorder, with a lifetime prevalence of 15% and an incidence of 5% per year. Its core symptoms include lack of pleasure in daily activities, thoughts of guilt and depressed mood. According to the World Health Organization, MDD is one of the ten most impairing conditions, leading to missing workdays, loss of quality of life and increasing expenses in health care. Besides, about 1% of patients with MDD complete suicide. Moreover, one third of patients with MDD remain depressed after more than two adequate treatments, i.e., they are refractory to conventional antidepressant treatments; also, most treated patients remain with residual symptoms. Therefore, the development of new treatments is necessary. Transcranial direct current stimulation (tDCS) is a novel, promising technique in the study of several neuropsychiatric conditions.
Transcranial DCS is a non-invasive brain stimulation method in which a low intensity direct current is applied through the skull, with neurophysiologic studies showing that a considerable amount of electrical current reach the brain tissues, vis-à-vis the specified parameters. Thus, the DC could be applied over brain MDD-related areas, such as the dorsolateral prefrontal cortex, thereby leading to neuroplasticity and MDD treatment. Indeed, some pilot studies showed that tDCS might ameliorate depressive symptoms. However, it is necessary to replicate these findings in larger populations to increase the generalizability of the results and to verify the efficacy of the intervention. Our aim is to perform a double blind, randomized, factorial study comparing tDCS and sertraline for MDD treatment, enrolling 120 eligible patients of both genders between 21-65 years not presenting active suicidal ideation. They will be allocated in 4 groups at random to receive active tDCS or sham and sertraline 50mg/day or placebo. Transcranial DCS will be applied in a daily basis for 10 consecutive working days (2 weeks), after that, the patients will be followed weekly for 6 weeks. Our primary outcome is the depression rating scores at 6 weeks, measured by the Hamilton Depression Rating Scale (HDRS), 17-itens. In conclusion, our purpose is to perform a clinical tDCS study to verify its efficacy in the treatment of MDD in a sample of patients of several levels of severity and refractoriness.
Our secondary objectives are also to verify the safety of the intervention as well as to compare tDCMajor Depressive Disorder (MDD) is a common mental disorder, with a lifetime prevalence of 15% and an incidence of 5% per year. Its core symptoms include lack of pleasure in daily activities, thoughts of guilt and depressed mood. According to the World Health Organization, MDD is one of the ten most impairing conditions, leading to missing workdays, loss of quality of life and increasing expenses in health care. Besides, about 1% of patients with MDD complete suicide. Moreover, one third of patients with MDD remain depressed after more than two adequate treatments, i.e., they are refractory to conventional antidepressant treatments; also, most treated patients remain with residual symptoms. Therefore, the development of new treatments is necessary. Transcranial direct current stimulation (tDCS) is a novel, promising technique in the study of several neuropsychiatric conditions.
Transcranial DCS is a non-invasive brain stimulation method in which a low intensity direct current is applied through the skull, with neurophysiologic studies showing that a considerable amount of electrical current reach the brain tissues, vis-à-vis the specified parameters. Thus, the DC could be applied over brain MDD-related areas, such as the dorsolateral prefrontal cortex, thereby leading to neuroplasticity and MDD treatment. Indeed, some pilot studies showed that tDCS might ameliorate depressive symptoms. However, it is necessary to replicate these findings in larger populations to increase the generalizability of the results and to verify the efficacy of the intervention. Our aim is to perform a double blind, randomized, factorial study comparing tDCS and sertraline for MDD treatment, enrolling 120 eligible patients of both genders between 21-65 years not presenting active suicidal ideation. They will be allocated in 4 groups at random to receive active tDCS or sham and sertraline 50mg/day or placebo. Transcranial DCS will be applied in a daily basis for 10 consecutive working days (2 weeks), after that, the patients will be followed weekly for 6 weeks. Our primary outcome is the depression rating scores at 6 weeks, measured by the Hamilton Depression Rating Scale (HDRS), 17-itens. In conclusion, our purpose is to perform a clinical tDCS study to verify its efficacy in the treatment of MDD in a sample of patients of several levels of severity and refractoriness.
Our secondary objectives are also to verify the safety of the intervention as well as to compare tDCS vs. sertraline and the association of sertraline and tDCS vs. each treatment alone in major depression treatment.
Tipo de estudio
Inscripción (Actual)
Fase
- Fase 2
- Fase 3
Contactos y Ubicaciones
Ubicaciones de estudio
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SP
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Sao Paulo, SP, Brasil, 01403-020
- University of Sao Paulo
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- Depressive Disorder, Major (SCID)
- HDRS > 18
Exclusion Criteria:
- Other axis I disorders, including Bipolar Disorder, Schizophrenia, Substance Abuse Disorders.
- Any axis II disorders.
- Any serious/life-threatening axis III disorders, such as Congestive Heart Failure, Pulmonary Obstructive Chronic Disease, Active Neoplasia.
- Neurological diseases such as Stroke (and Post-Stroke Depression), Dementias and others.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación factorial
- Enmascaramiento: Cuadruplicar
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
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Experimental: Sham stimulation / sertraline
In this arm, patients will receive sham stimulation and sertraline 50mg/day.
In sham stimulation, the tDCS device is set in the same fashion as the active stimulation, but the device is turned off after one minute of stimulation.
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Patient will receive sertraline 50mg/day.
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Comparador falso: Sham stimulation / placebo pill
Placebo pills are sugar pills having the same size and shape of the active pills. In sham stimulation, the tDCS device is set in the same fashion as the active stimulation, but the device is turned off after one minute of stimulation. |
double placebo arm (sham stimulation/placebo pill)
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Experimental: Active stimulation / Sertraline
In active stimulation, the anode is placed over the left dorsolateral prefrontal cortex and the cathode is placed over the right prefrontal cortex. They are located five centimeters ventrally of the primary motor area, which are located five centimeters laterally of the central point of the scalp (which is located on the intersection of the sagittal and median curves). The device will deliver a charge of 2mA for 30 minutes. Patients will receive Sertraline 50mg/day. |
Patient will receive sertraline 50mg/day.
Transcranial direct current stimulation will be applied at 2mA, 30 minutes/day, for 10 weekdays consecutively and two extra stimulations at week 4 and 6.
|
Experimental: Active stimulation / placebo pill
In active stimulation, the anode is placed over the left dorsolateral prefrontal cortex and the cathode is placed over the right prefrontal cortex. They are located five centimeters ventrally of the primary motor area, which are located five centimeters laterally of the central point of the scalp (which is located on the intersection of the sagittal and median curves). The device will deliver a charge of 2mA for 30 minutes. Placebo pills are sugar pills having the same size and shape of the active pill |
Transcranial direct current stimulation will be applied at 2mA, 30 minutes/day, for 10 weekdays consecutively and two extra stimulations at week 4 and 6.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
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MADRS score
Periodo de tiempo: repeated-measures
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repeated-measures
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Medidas de resultado secundarias
Medida de resultado |
Periodo de tiempo |
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HDRS-17 score at week 6.
Periodo de tiempo: week 6
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week 6
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Remission rate (MADRS<=10)
Periodo de tiempo: week 6
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week 6
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MADRS score
Periodo de tiempo: week 2
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week 2
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Andre R Brunoni, MD, University of Sao Paulo
Publicaciones y enlaces útiles
Publicaciones Generales
- Brunoni AR, Valiengo L, Baccaro A, Zanao TA, de Oliveira JF, Vieira GP, Bueno VF, Goulart AC, Boggio PS, Lotufo PA, Bensenor IM, Fregni F. Sertraline vs. ELectrical Current Therapy for Treating Depression Clinical Trial--SELECT TDCS: design, rationale and objectives. Contemp Clin Trials. 2011 Jan;32(1):90-8. doi: 10.1016/j.cct.2010.09.007. Epub 2010 Sep 18.
- Alessandra Baccaro, Andre Russowsky Brunoni, Isabela Martins Bensenor, Felipe Fregni. Hypomanic episode in unipolar depression during transcranial direct current stimulation. Acta Neuropsychiatrica 22(6):316-318, 2010.
- Brunoni AR, Kemp AH, Dantas EM, Goulart AC, Nunes MA, Boggio PS, Mill JG, Lotufo PA, Fregni F, Bensenor IM. Heart rate variability is a trait marker of major depressive disorder: evidence from the sertraline vs. electric current therapy to treat depression clinical study. Int J Neuropsychopharmacol. 2013 Oct;16(9):1937-49. doi: 10.1017/S1461145713000497. Epub 2013 Jun 12.
- Brunoni AR, Valiengo L, Baccaro A, Zanao TA, de Oliveira JF, Goulart A, Boggio PS, Lotufo PA, Bensenor IM, Fregni F. The sertraline vs. electrical current therapy for treating depression clinical study: results from a factorial, randomized, controlled trial. JAMA Psychiatry. 2013 Apr;70(4):383-91. doi: 10.1001/2013.jamapsychiatry.32.
Enlaces Útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Síntomas de comportamiento
- Desordenes mentales
- Procesos Patológicos
- Trastornos del estado de ánimo
- Depresión
- Desorden depresivo
- Enfermedad
- Trastorno Depresivo Mayor
- Efectos fisiológicos de las drogas
- Agentes neurotransmisores
- Mecanismos moleculares de acción farmacológica
- Drogas psicotropicas
- Inhibidores de la captación de serotonina
- Inhibidores de la captación de neurotransmisores
- Moduladores de transporte de membrana
- Agentes de serotonina
- Agentes antidepresivos
- Sertralina
Otros números de identificación del estudio
- USP-HU-001
- FAPESP2009/05728-7 (Otro número de subvención/financiamiento: FAPESP 2009/05728-7)
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