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Brain Connectivity and Response to Tai Chi in Geriatric Depression

14 de julio de 2021 actualizado por: Helen Lavretsky, MD, University of California, Los Angeles
The purpose of this study is to evaluate the effects after up to 1 year of supervised weekly Tai-Chi-Chi versus Health Education and Wellness classes on reduction of depressive symptoms and improvement in resilience, health functioning, quality of life, cognition, sleep, fMRI neural correlates of working memory, and brain structure.

Descripción general del estudio

Descripción detallada

The proposed randomized trial aims to investigate neural mechanisms of brain connectivity when comparing response to TCC to health and wellness education classes using fMRI biomarkers of emotional regulation and cognition. Control group will include health wellness education programs (HEW) that will help to control for the non-specific social support factors. Primary outcomes include measures of depressive symptom severity. Secondary outcomes include cognition, resilience, health functioning, quality of life. Maintenance of response and relapse of major depression will be determined during 6 month (and 12 month follow-up if MRI eligible). Functional magnetic resonance imaging (fMRI) correlates of emotional processing and connectivity in related functional networks. Neural correlates of working memory, and brain structure will be examined in ½ of the sample. The researchers will investigate whether variations in emotional regulation will moderate or predict emotional and functional improvement linked to TCC.

The investigators will recruit 220 older adults with depressive symptoms who have been on a stable form of treatment for at least 4 months, who will be randomly assigned to 12 weeks of: 1.Ta-Chi-Chih (TCC) class; or 2. Health/Wellness Education Program (HEW); all for 120 minutes per week. All subjects will receive comprehensive evaluations of mood, mental and physical health, and cognition at baseline, 12 weeks, and 6 months. Changes over time in measures of depressive symptoms, resilience, quality of life, and cognition will be assessed in random regression models. The investigators anticipate that greater clinical improvement in mood and cognition will in the TCC group compared to the HEW. The investigators also expect clinical improvement to correlate with the change in the activation in the right ventrolateral prefrontal cortex (VLPFC) and amygdala in an affect labeling task, and working memory-related activation of dorsolateral prefrontal cortex (DLPFC), and change in functional connectivity in brain network activity. This is the first randomized trial of response to TCC that integrates the use of fMRI biomarkers of response to guide the development of treatment and preventive approaches in geriatric depression.

Tipo de estudio

Intervencionista

Inscripción (Actual)

220

Fase

  • No aplica

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

    • California
      • Los Angeles, California, Estados Unidos, 90095
        • UCLA Semel Institute

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

60 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • A 24-item Hamilton Rating Scale for Depression (HAMD) score greater than 14 consistent with moderate-severe depression.
  • Mini-Mental State Exam (MMSE) score greater than 24.
  • Sufficient English proficiency and 8th grade or higher reading level as determined by the word reading subtest of the Wide Range Achievement Test-IV.
  • Capacity to provide informed consent.
  • A stable form of treatment for at least 4 months.

Exclusion Criteria:

  • Any current or past psychiatric disorders, or recent unstable medical or neurological disorders
  • Any disabilities preventing their participation in Tai-Chi Chih exercise (e.g. severe visual or hearing impairment)
  • Insufficient English proficiency
  • Diagnosis of dementia
  • Mini Mental Health Examination score of 24 and below
  • Effective antidepressant, psychotropic medications, or effective therapy
  • Participation in a psychotherapy that involves cognitive training
  • Do not meet criteria for moderate-severe depression with a 24-item Hamilton Rating Scale for Depression (HAMD) score less than 14

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: Cuidados de apoyo
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Doble

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Tai-Chi Chih Classes
Participants will engage in 12 weekly 60 minute Tai-Chi-Chih classes.
Otros nombres:
  • Tai Chi
Comparador activo: Health Education and Wellness Classes
Participants will engage in 12 weekly 60 minute Health Education and Wellness classes.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Change in Hamilton Depression Rating Scale (HDRS) Scores
Periodo de tiempo: Measured at baseline and 3 months
Clinician administered scale measures severity of depressive symptoms. This measure includes 24 items. Response options vary item to item and include the following ranges: [0-2], [0-3], and [0-4]. A score of 0 suggests absence of symptoms and/or difficulties and higher scores represent more severe difficulties. Possible overall score range [0-74], higher scores representing more severe difficulties.
Measured at baseline and 3 months

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Change in Delayed Recall Cognitive Domain Scores
Periodo de tiempo: Measured at baseline and 3 months

Neuropsychological battery of tests which included the following domains:

Delayed Recall (CVLT-II [Long-Delay Free Recall], Rey-Osterrieth Complex Figure Test [30-minute Delayed Recall])

Raw scores were transformed to z-scores (with a mean of 0 and standard deviation of 1) for each test score of interest across all participants. Thus the sample mean (across both arms) is zero for each test score. These z-scores were then averaged within each neuropsychological domain to produce composite scores. Higher scores are indicative of better performance.

Measured at baseline and 3 months
Change in Attention/Executive Function Cognitive Domain Scores
Periodo de tiempo: Measured at baseline and 3 months

Neuropsychological battery of tests which included the following domains:

Attention/Executive Function (Trail Making Test A and B, Stroop Interference [Golden version])

Raw scores were transformed to z-scores (with a mean of 0 and standard deviation of 1) for each test score of interest across all participants. Thus the sample mean (across both arms) is zero for each test score. These z-scores were then averaged within each neuropsychological domain to produce composite scores. Higher scores are indicative of better performance.

Measured at baseline and 3 months
Change in Language Cognitive Domain Scores
Periodo de tiempo: Measured at baseline and 3 months

Neuropsychological battery of tests which included the following domains:

Language (Controlled Oral Word Association test [FAS], Animal Fluency, and Boston Naming Test)

Raw scores were transformed to z-scores (with a mean of 0 and standard deviation of 1) for each test score of interest across all participants. Thus the sample mean (across both arms) is zero for each test score. These z-scores were then averaged within each neuropsychological domain to produce composite scores. Higher scores are indicative of better performance.

Measured at baseline and 3 months

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Number of Participants With Adverse Events
Periodo de tiempo: Measured at 3 months
The UKU (Udvalg for Kliniske Undersogelser) Side Effect Rating Scale organizes symptoms into 4 categories (i.e., Psychic, Neurologic, Autonomic, Other) containing 8-19 symptoms each. Each symptom receives a score for degree and causal relationship. Degree is scored between 0-3 with higher scores being more severe. Causal relationship is scored as improbable, possible, or probable.
Measured at 3 months

Colaboradores e Investigadores

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

Investigadores

  • Investigador principal: Helen Lavretsky, M.D., University of California, Los Angeles

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Publicaciones Generales

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 enero de 2016

Finalización primaria (Actual)

18 de noviembre de 2020

Finalización del estudio (Actual)

1 de diciembre de 2020

Fechas de registro del estudio

Enviado por primera vez

16 de marzo de 2015

Primero enviado que cumplió con los criterios de control de calidad

29 de mayo de 2015

Publicado por primera vez (Estimar)

2 de junio de 2015

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

16 de julio de 2021

Última actualización enviada que cumplió con los criterios de control de calidad

14 de julio de 2021

Última verificación

1 de julio de 2021

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • R01AT008383-01A1 (Subvención/contrato del NIH de EE. UU.)

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

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. .

Ensayos clínicos sobre Trastorno depresivo mayor

Ensayos clínicos sobre Tai-Chi-Chih (TCC)

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