Mechanisms of Antidepressant Non-Response in Late-Life Depression
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Descripción detallada
Tipo de estudio
Tipo de estudio
Inscripción (Actual)
Inscripción
Fase
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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New York
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New York, New York, Estados Unidos, 10032
- New York State Psychiatric Institute
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Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- Men and women aged 60-90 years
- Diagnosis with nonpsychotic Diagnostic and Statistical Manual (DSM) IV MDD
- 24-item Hamilton Rating Scale for Depression (HRSD) score ≥ 16
- Willing to and capable of providing informed consent and complying with study procedures
Exclusion Criteria:
- Current comorbid Axis I DSM IV disorder other than Nicotine Dependence, Adjustment Disorder, or Anxiety Disorder
- diagnosis of substance abuse or dependence (excluding Nicotine Dependence) within the past 12 months
- History of psychosis, psychotic disorder, mania, or bipolar disorder
- Diagnosis of probable Alzheimer's Disease, Vascular Dementia, or Parkinson's Disease
- MMSE < 24
- HRSD suicide item > 2 or Clinical Global Impressions (CGI)-Severity score of 7 at baseline
- history of allergic or adverse reaction to escitalopram, or non-response to adequate trial of escitalopram (at least 4 weeks at dose of 20mg) during the current episode
- current treatment with psychotherapy, antidepressants, antipsychotics, or mood stabilizers
- having contraindication to MRI scanning (such as metal in body) or unable to tolerate the scanning procedures (i.e., severe obesity, claustrophobia)
- acute, severe, or unstable medical or neurological illness
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Cuadruplicar
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
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Comparador de placebos: Double Blind-Placebo
Blinded treatment with placebo, one pill a day.
If after the 4 weeks, the patient has not remitted, they will be increased to 2 pills a day.
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Inert substance or treatment which is designed to have no therapeutic value but resemble the active medication in this study
Otros nombres:
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Comparador activo: Double Blind-Escitalopram
Blinded treatment with either escitalopram 10mg, increased to escitalopram 20mg at week 4 if depression has not remitted.
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Escitalopram is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class.
It is FDA approved for the treatment of major depressive disorder (MDD) and generalized anxiety disorder (GAD) in adults and children over 12 years of age.
Otros nombres:
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Comparador activo: Open Treatment with Escitalopram
Open treatment with 10mg of escitalopram, increased to 20mg if depression has not remitted at week 4.
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Escitalopram is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class.
It is FDA approved for the treatment of major depressive disorder (MDD) and generalized anxiety disorder (GAD) in adults and children over 12 years of age.
Otros nombres:
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¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Escala de calificación de Hamilton para la depresión (HRSD)
Periodo de tiempo: Base
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Nuestro objetivo es la sintomatología depresiva medida por la escala de calificación de Hamilton para la depresión (HRSD).
El HRSD es un cuestionario de 24 ítems que se utiliza como indicador de depresión y como guía para evaluar la recuperación.
Las puntuaciones totales oscilan entre 0 y 74, sin incluir la subescala de síntomas atípicos.
Por lo general, se considera que una puntuación de 16 o más indica la presencia de síntomas depresivos.
Las puntuaciones más altas indican una mayor gravedad.
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Base
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Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Hamilton Rating Scale for Depression (HRSD)
Periodo de tiempo: Week 8
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Our target is depressive symptomatology as measured by the Hamilton Rating Scale for Depression (HRSD).
The HRSD is a 24-item questionnaire used as an indication of depression and a guide to evaluate recovery.
Total scores range from 0-74, not including atypical symptoms sub-scale.
A score of 16 or above is typically considered to indicate the presence of depressive symptoms.
Higher scores indicate greater severity.
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Week 8
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Quick Inventory of Depressive Symptoms (QIDS-SR)
Periodo de tiempo: Baseline
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QIDS-SR is a 16 item scale self-report form that was used to measure depression outcomes.
This self-report is valuable in this study, because it is less susceptible to clinician and rater bias.
The QIDS-SR has been increasingly used in antidepressant studies due to its equivalent weightings for each symptom item, clearly understandable anchor points, and inclusion of all DSM criteria for depression.
The scores range from 0-27 with 27 being worse depressive symptoms.
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Baseline
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Quick Inventory of Depressive Symptoms (QIDS-SR)
Periodo de tiempo: Week 8
|
QIDS-SR is a 16 item scale self-report form that was used to measure depression outcomes.
This self-report is valuable in this study, because it is less susceptible to clinician and rater bias.
The QIDS-SR has been increasingly used in antidepressant studies due to its equivalent weightings for each symptom item, clearly understandable anchor points, and inclusion of all DSM criteria for depression.
The scores range from 0-27 with 27 being worse depressive symptoms.
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Week 8
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Credibility and Expectancy Scale-Better (CES)
Periodo de tiempo: Pre-Baseline
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CES is an 8 item scale in which subjects rate their impression of the credibility of the treatment and how they estimate their expectation of improvement.
The CES is the most widely used measure of expectancy and has demonstrated good psychometric properties in multiple studies.
Question 2 ('Better') asks the patient the chances of their depression being completely better at the end of this study, from 1 = very poor to 7 = very good.
The higher the number, the higher the expectancy that they will be better.
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Pre-Baseline
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Credibility and Expectancy Scale-Better (CES)
Periodo de tiempo: Week 0
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CES is an 8 item scale in which subjects rate their impression of the credibility of the treatment and how they estimate their expectation of improvement.
The CES is the most widely used measure of expectancy and has demonstrated good psychometric properties in multiple studies.
Question 2 ('Better') asks the patient the chances of their depression being completely better at the end of this study, from 1 = very poor to 7 = very good.
The higher the number, the higher the expectancy that they will be better.
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Week 0
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Credibility and Expectancy Scale-Depression
Periodo de tiempo: Pre-baseline
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CES is an 8 item scale in which subjects rate their impression of the credibility of the treatment and how they estimate their expectation of improvement.
The CES is the most widely used measure of expectancy and has demonstrated good psychometric properties in multiple studies.
CES question 3 ('Depression') asks how the patient's depression will be at the end of the study, compared with now, from 1 = much worse to 7= much better.
The higher the number, the higher the expectancy that their depression will be much better.
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Pre-baseline
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Credibility and Expectancy Scale-Depression
Periodo de tiempo: Week 0
|
CES is an 8 item scale in which subjects rate their impression of the credibility of the treatment and how they estimate their expectation of improvement.
The CES is the most widely used measure of expectancy and has demonstrated good psychometric properties in multiple studies.
CES question 3 ('Depression') asks how the patient's depression will be at the end of the study, compared with now, from 1 = much worse to 7= much better.
The higher the number, the higher the expectancy that their depression will be much better.
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Week 0
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Quick Inventory of Depression Scale (QIDS-SR): Expectancy
Periodo de tiempo: Pre-Baseline
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This 16-items assessment is used to rate the 9 criterion symptom domains of a major depressive episode: 4 items are used to rate sleep disturbance (early, middle, and late insomnia plus hypersomnia); 2 items are used to rate psychomotor disturbance (agitation and retardation); 4 items are used to rate appetite/weight disturbance (appetite increase or decrease and weight increase or decrease).
Only 1 item is used to rate the remaining 6 domains (depressed mood, decreased interest, decreased energy, worthlessness/guilt, concentration/decision making, and suicidal ideation).
Each item is rated 0-3.
For symptom domains that require more than 1 item, the highest score of the item relevant for each domain is taken.
The total score ranges from 0-27.
A lower rating indicates higher expectancy of improvement and lower expectation of depressive symptomatology, and a higher rating indicates lower expectancy of improvement, higher expectation of depression.
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Pre-Baseline
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Quick Inventory of Depression Scale (QIDS-SR): Expectancy
Periodo de tiempo: Week 0
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This 16-items assessment is used to rate the 9 criterion symptom domains of a major depressive episode: 4 items are used to rate sleep disturbance (early, middle, and late insomnia plus hypersomnia); 2 items are used to rate psychomotor disturbance (agitation and retardation); 4 items are used to rate appetite/weight disturbance (appetite increase or decrease and weight increase or decrease).
Only 1 item is used to rate the remaining 6 domains (depressed mood, decreased interest, decreased energy, worthlessness/guilt, concentration/decision making, and suicidal ideation).
Each item is rated 0-3.
For symptom domains that require more than 1 item, the highest score of the item relevant for each domain is taken.
The total score ranges from 0-27.
A lower rating indicates higher expectancy of improvement and lower expectation of depressive symptomatology, and a higher rating indicates lower expectancy of improvement, higher expectation of depression.
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Week 0
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Executive Dysfunction: Stroop Color Word
Periodo de tiempo: Pre-Baseline
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Stroop Color Word test asks patients to name the color of a word rather than reading the word.
Stroop Color Word is how many colors they can name in 45 sec (higher is better, e.g., less executive dysfunction).
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Pre-Baseline
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Executive Dysfunction: Stroop Interference
Periodo de tiempo: Pre-Baseline
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The Stroop is a measure of inhibition under distracting conditions that is sensitive to frontal lobe dysfunction.
in Stroop Color Word test patients are to name the color of a word rather than reading the word.
Stroop Color Word is how many colors they can name in 45 sec (higher is better, e.g., less executive dysfunction).
Stroop Interference is this score adjusted for age and education.
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Pre-Baseline
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White Matter Hyperintensity (WMH) Outcome- Total WMH
Periodo de tiempo: Pre-Baseline
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Magnetic Resonance Imaging (MRI) of the Brain was acquired.
We rated the severity of WMH on axial T2 FLAIR images using the Fazekas modified Coffey Rating Scale.
Deep WMH are scored as 0 (absent), 1 (punctate foci), 2 (beginning confluence of foci), and 3 (large confluent areas); subcortical gray matter HIs (basal ganglia) are scored as 0 (absent), 1 (punctate), 2 (multipunctate), and 3 (diffuse); periventricular HIs are scored as 0 (absent), 1 (caps), 2 (smooth halo), and 3 (irregular and extending into the deep white matter).
Our primary measure of WMH burden will be DWMH score, which has been used to establish the only empirically validated diagnostic criteria for vascular depression, where scores of 0-1 were normal, but 2-3 indicated WHM.
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Pre-Baseline
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Publicaciones y enlaces útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Inicio del estudio
Finalización primaria (Actual)
Finalización primaria
Finalización del estudio (Actual)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
- Desordenes mentales
- Trastornos del estado de ánimo
- Desorden depresivo
- 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
- Agentes antidepresivos, segunda generación
- Citalopram
Otros números de identificación del estudio
Otros números de identificación del estudio
- 6836 (Sponsor ref)
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
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