- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT02665481
Mindfulness-Based Stress Reduction, Health Education and Exercise (MEDEX)
Remediating Age Related Cognitive Decline: Mindfulness-Based Stress Reduction and Exercise
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
MBSR teaches mindfulness, or the focusing of attention and awareness, through various meditation techniques. Mindfulness meditation practices appear to produce neurocircuitry changes that are the reverse of those seen in age-related cognitive decline. It is widely available, acceptable to older people, and carries minimal risk of side effects or adverse events. Exercise - specifically, intense, multi-component exercise - also appears to affect brain structure and function and improve cognitive performance.
The investigators will randomize 580 non-demented healthy adults aged 65 to 84 to one of four conditions: MBSR alone, exercise alone, MBSR + exercise, or a health education discussion group control condition.
The study will consist of a 6-month acute intervention phase with weekly visits followed by a 12-month maintenance phase with weekly or monthly visits and other prompts to maintain intervention behaviors.
Assessments include cognitive tests, biomarkers, neuroimaging assessments, functional assessments to examine real-world benefits of the interventions, and other behavioral assessments to characterize participants and pave the way for further exploratory analyses.
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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California
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San Diego, California, Estados Unidos, 92122
- University Of California San Diego
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Missouri
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Saint Louis, Missouri, Estados Unidos, 63110
- Washington University School of Medicine
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Community-living men and women age 65 to 84.
- Self-reported cognitive complaints that are a normal part of aging.
- No current meditation practice nor prior training in it.
- Sedentary.
Exclusion Criteria:
- Known diagnosis of dementia, mild cognitive impairment, other clinical neurodegenerative illness (e.g., Parkinson's disease, cerebrovascular disease), psychotic disorder, or any unstable psychiatric condition.
- Medical conditions that suggest shortened lifespan, such as metastatic cancer; or would prohibit safe participation in the interventions, including cardiovascular disease or musculoskeletal conditions; or would interfere with the assessments, such as taking medications for diabetes or ferromagnetic metal/bridgework that would interfere with MRI signal.
- IQ <70 as estimated by the Wechsler Test of Adult Reading
- Sensory impairment (language, hearing, or visual) that would prevent participation.
- Alcohol abuse within 6 months.
- Current illicit drug use.
- Concurrent cognitive training, such as brain-training software, or other interventions expected to affect neuroplasticity.
- Medications that interfere with measurements, including cancer chemotherapy, glucocorticoids, and interferon.
- Inability to cooperate with protocol.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição fatorial
- Mascaramento: Solteiro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
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Experimental: MBSR
Mindfulness-Based Stress Reduction consists of a brief introductory meeting, eight weekly 2.5-hour classes, and a retreat, followed by monthly booster sessions for approximately 15 months.
Content includes instruction in mindfulness meditation practices, gentle mindful movement, and exercises to enhance mindfulness in everyday life.
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Outros nomes:
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Experimental: Exercise
The exercise protocol is optimal for improving aerobic fitness and insulin sensitivity in older adults, as well as improving strength and balance and reducing indices of frailty.It consists of classes twice weekly for 6 months, building up to 1.5 hr, under the direct supervision of trained exercise instructors, followed by once weekly classes for 12 months.
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Outros nomes:
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Experimental: MBSR + Exercise
This condition will receive both MBSR and exercise as described above. Participants in this condition will come in once weekly to receive MBSR and twice weekly to receive exercise classes, with at-home exercise the other two days as well as daily, at-home mindfulness practice. After the initial classes participants will also attend additional weekly or monthly sessions until completion of the study. Note that at each site a pilot group is undergoing MBSR + Exercise (not randomized, separate from the RCT). |
Outros nomes:
Outros nomes:
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Comparador Ativo: Health Education
Health Education is a group-based intervention that increases health-related knowledge and action.
Health Education improves chronic disease management.Health Education consists of ten weekly 2.5-hour classes, followed by monthly classes for approximately 15 months.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Memory Composite Score
Prazo: Month 0, Month 3, Month 6, and Month 18
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The memory composite variable consists of the list recall, paragraph recall, and picture sequence memory tasks.
For each memory variable, a z score is computed for each participant [(participant score - mean)/standard deviation].
Then the composite memory variable is created by averaging the z scores.
The higher the z-score, the better the outcome.
A Z-score of 0 represents the population mean.
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Month 0, Month 3, Month 6, and Month 18
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Cognitive Control Composite Score
Prazo: Month 0, Month 3, Month 6, Month 18
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The cognitive control composite variable uses the CVOE, SART, Color Word Interference, flanker, dimensional change card sort, and list-sorting tasks.
For each cognitive variable, a z score is computed for each participant [(participant score - mean)/standard deviation].
Then the composite cognitive control variable is created by averaging the z scores.
The higher the z-score, the better the outcome.
A Z-score of 0 represents the population mean.
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Month 0, Month 3, Month 6, Month 18
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Hippocampal Volume
Prazo: Month 0, Month 6, Month 18
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The hippocampal volume is derived from structural MRI high-resolution T1-weighted images.
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Month 0, Month 6, Month 18
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DLPFC Surface Area
Prazo: Month 0, Month 6, Month 18
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The Dorsal Lateral Pre-Frontal Cortex (DLPFC) surface area is derived from structural MRI high-resolution T1-weighted images.
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Month 0, Month 6, Month 18
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DLPFC Cortical Thickness
Prazo: Month 0, Month 6, and Month 18
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The Dorsal Lateral Pre-Frontal Cortex Cortical Thickness is derived from structural MRI high-resolution T1-weighted images.
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Month 0, Month 6, and Month 18
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OTDL (Observed Tasks of Daily Living).
Prazo: Month 0, Month 6, Month 18
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The Revised Observed Tasks of Daily Living (OTDL-R) is a performance-based test of everyday problem-solving.
Subjects completed tasks testing medication use (following medicine label directions, and completing a patient record form); telephone use (finding and dialing a number from the yellow pages); and financial management (making change with coins and bills, and balancing a checkbook).
The scores were summed with the total score having a range from 0 to 28.
The higher the score, the more likely the participant is able to complete everyday activities.
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Month 0, Month 6, Month 18
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Quality of Life in Neurological Disorders Cognitive Function Scale (NQoL).
Prazo: Month 0, Month 3, Month 6, Month 18
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The Quality of Life in Neurological Disorders (NQoL) Cognitive Function Scale is an 18-item self-report measure that assesses the health-related quality of life of adults.
The total score ranges from 18 to 90 where a higher score represents a better outcome.
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Month 0, Month 3, Month 6, Month 18
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Eric J Lenze, MD, Washington University School of Medicine
Publicações e links úteis
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- 201410093
- 1R01AG049369-01 (Concessão/Contrato do NIH dos EUA)
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
Descrição do plano IPD
Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .
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