Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Brain Stimulation and Enhancing Cognition in Older Adults

7. juli 2021 opdateret af: Eric Lenze, Washington University School of Medicine

Enhancing Cognition in Older Persons: A Randomized Controlled Trial of Mindfulness-Based Stress Reduction (MBSR) and Transcranial Direct Current Stimulation (tDCS).

The aim of the current research is to evaluate the efficacy of a combination of Mindfulness-Based Stress Reduction (MBSR) and transcranial direct current stimulation (tDCS) to improve cognitive function in individuals with anxiety, depression and/or cognitive complaints.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Neurocognitive difficulties are a common problem in the older adult population. Previous research has shown memory complaints are higher in older adults with depression or anxiety versus those without these diagnoses. This suggests that mood symptoms, or a diagnosis of a mood disorder, may represent significant predictors of cognitive impairment. If left untreated, symptoms of depression and memory complaints may lead to greater cognitive impairment, i.e. Mild Cognitive Impairment (MCI) and diagnosis of dementia. Therefore, early interventions are urgently needed to prevent decline in memory and cognitive function in individuals with MCI, depression and/or anxiety.

Ideal interventions for the older aged population would be those that are easily accessible and associated with minimal burden on family members, the healthcare system and the individuals themselves. Mindfulness- Based Stress Reduction (MBSR) therapy and Transcranial Direct Current Stimulation (tDCS) are two interventions that may be effective in targeting cognitive deficits in individuals with anxiety, depression and/ or cognitive complaints. MBSR has been shown to decrease symptoms of depression and improve cognition and tDCS has been shown to improve cognition in the older aged population. The effectiveness of these two interventions combined to elicit changes in cognition has yet to be demonstrated. Therefore, the overall aim of the current research is to evaluate the efficacy of a combination of MBSR and tDCS to improve cognitive function in individuals with anxiety, depression and/or cognitive complaints.

This will be a randomized pilot study. Sixteen individuals (separated into 2 groups of 8) will be randomized to receive a combination of MBSR + active tDCS or MBSR + sham tDCS over 8 weeks. Participants will visit the Healthy Mind Lab once per week for in-class group sessions and will complete the intervention daily at home for the duration of the study. Participants will be aged 60 and older with cognitive complaints, with or without symptoms of anxiety and/or depression. Participants will be trained to self-administer tDCS and given guidelines for the completion of daily MBSR activities at home. It is hypothesized that the combination of active tDCS+MBSR will enhance cognition compared to the combination of sham tDCS + MBSR.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

26

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • Missouri
      • Saint Louis, Missouri, Forenede Stater, 63110
        • Washington University School of Medicine
      • Saint Louis, Missouri, Forenede Stater, 63110
        • Washington University in Saint Louis

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

60 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  1. Community-dwelling men and women aged 60 or above.
  2. Current cognitive complaints per participant self-report, but with intact cognitive function as defined by a score of 0-9 on the Short Blessed Test (SBT) and a Montreal Cognitive Assessment (MoCA) score ≥25 per PI discretion.
  3. PROMIS depression scale score of greater or equal to 16 and/or PROMIS anxiety score greater or equal to 14.
  4. Ability to read and speak English fluently enough to complete all research assessments.
  5. Corrected visual ability to read newspaper headlines.
  6. Hearing capacity to respond to a raised conversational voice.
  7. Willingness and ability to provide informed consent.

Exclusion Criteria:

  1. The Mini-International Neuropsychiatric Interview (MINI) criteria for current or life-time bipolar disorder, schizophrenia, schizoaffective disorder.
  2. Untreated current post-traumatic stress disorder.
  3. A MoCA score <25 or SBT score >9, per PI discretion.
  4. Use of cognitive enhancers (namely, cholinesterase inhibitors such as donepezil; or memantine) within the past 6 weeks.
  5. MINI criteria for any substance abuse within 6 months that would affect their participation, per PI discretion.
  6. Unstable medical illness (e.g. uncontrolled diabetes mellitus or hypertension).
  7. Concurrent cognitive training, such as brain-training software, participation in psychotherapy or regular engagement in mindfulness practice and/or yoga.
  8. Taking anticonvulsant or antipsychotics that cannot be safely tapered and discontinued.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Sham-komparator: Sham tDCS and MBSR
Includes a combination of 8 weeks of in-class group MBSR + sham tDCS and daily at home MBSR + sham tDCS.
Enhed: Sham Transcranial Direct Current Stimulation (tDCS)
Transcranial Direct Current Stimulation (tDCS) is a form of neurostimulation (also known as neuromodulation) where very low levels of direct electrical current are delivered to specifically targeted areas of the brain, in order to increase neuroplasticity. The direct current in active tDCS will be of 2 milliampere (mA) (current density = 0.57 A/m2), however, the device is pre-programmed to turn off after 1 minute of active stimulation (and then turn back on briefly at the end of the 30 minutes).
Aktiv komparator: Active tDCS and MBSR
Includes a combination of 8 weeks of in-class group MBSR + active tDCS and daily at home MBSR + active tDCS.
Enhed: Active Transcranial Direct Current Stimulation (tDCS)
Transcranial Direct Current Stimulation (tDCS) is a form of neurostimulation (also known as neuromodulation) where very low levels of direct electrical current are delivered to specifically targeted areas of the brain, in order to increase neuroplasticity. The direct current in active tDCS will be of 2 mA (current density = 0.57 A/m2) and will be applied for approximately 30 minutes per day during meditative practices of the MBSR protocol.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Cognitive and Memory Function
Tidsramme: 8 weeks

NIH Toolbox Fluid Cognition Composite Score: provides a global assessment of general fluid cognition functioning. Higher scores indicate higher levels of cognitive functioning. A score at or near 100 indicates ability that is average compared with others nationally. Scores around 115 suggest above-average cognitive ability, while scores around 130 suggest superior ability ( in the top 2 percent nationally). Conversely, a score around 85 suggests below-average cognitive ability and a score in the range of 70 or below suggests significant impairment, which may also be indicative of difficulties in general functioning.

Fluid abilities are used to solve problems, think and act quickly, and encode new episodic memories. They are presumed to be especially influenced by biological processes and are less dependent on past exposure (learning experiences).

There is only one primary outcome. No secondary outcomes were reported.
8 weeks

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Washington University School of Medicine

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

27. juni 2018

Primær færdiggørelse (Faktiske)

22. april 2019

Studieafslutning (Faktiske)

22. april 2019

Datoer for studieregistrering

Først indsendt

25. juli 2018

Først indsendt, der opfyldte QC-kriterier

28. august 2018

Først opslået (Faktiske)

31. august 2018

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

8. juli 2021

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. juli 2021

Sidst verificeret

1. juli 2021

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • ID#201805097

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ja

produkt fremstillet i og eksporteret fra U.S.A.

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Sham Transcranial Direct Current Stimulation (tDCS)

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in United States

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

3
Abonner