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Efficacy of Cognitive Training in Subjective Memory Impairment

6. august 2018 oppdatert av: Jae-Hong Lee, Asan Medical Center

A Prospective, Three-arm, Parallel Design, Controlled Trial to Assess Efficacy of Cognitive Training in Subjective Memory Impairment

This study evaluates the efficacy of cognitive training in subjects with subjective memory impairment. The first group will receive cognitive training and lifestyle modification in combination, the second group will receive only lifestyle modification, and the third group will receive no intervention.

Studieoversikt

Detaljert beskrivelse

Subjective memory impairment is currently thought to be a risky state of progression to Alzheimer's disease. This study aims to confirm whether cognitive training in subjective memory impairment would show improvement in the subjective and objective cognition. We include subjects with normal cognition but complained subjective feeling of memory decline and conduct cognitive training programs combined with lifestyle modifications for 3 months. We evaluate the neuropsychological tests and questionnaires about subjective improvement after 3 months of interventions.

Studietype

Intervensjonell

Registrering (Faktiske)

65

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

55 år til 75 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • Subjects who showed normal range (above 16percentile of norm) in all domains of detailed neuropsychological tests battery named Seoul Neuropsychological Screening Battery (SNSB)
  • Clinical dementia rating (CDR) score of 0
  • Subjects with at least 3 years of formal education

Exclusion Criteria:

  • Subjects with mild cognitive impairment or dementia
  • Subjects who was diagnosed as any neurological disorders such as epilepsy, stroke, hemorrhage, hydrocephalus, Parkinson's disease or brain tumor
  • Subjects with uncontrolled severe medical conditions according to investigator's opinion

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: cognitive training
Cognitive training programs 2 times a week for 3 months (totally 24 sessions) for 90 minutes per session. Lifestyle modification is educated first, then weekly phone call for lifestyle modification is done by investigators.
cognitive training is held 2 times a week for 3 months, 90 minutes per 1 session. It includes cognitive exercise of multiple cognitive domains such as memory, attention, calculation, executive function and visuospatial function.
education about lifestyle modification is done by investigators at the first day of the trial and the investigators conduct weekly phone call to participants to educate the lifestyle modifications
Aktiv komparator: lifestyle modification
This group receives only lifestyle modification for 3 months. Lifestyle modification is educated at the first, then weekly phone call for lifestyle modification is done by investigators. The method of lifestyle modification is same with the first arm.
education about lifestyle modification is done by investigators at the first day of the trial and the investigators conduct weekly phone call to participants to educate the lifestyle modifications
Ingen inngripen: No intervention
This group receives no intervention.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Paired associates learning test
Tidsramme: 3 month
paired associates learning test is a part of computerized neuropsychological tests battery named CANTAB (Cambridge Neuropsychological Test Automated Battery). The scores are shown as total number of errors.
3 month
Rapid visual information processing test
Tidsramme: 3 month
rapid visual information processing is a part of computerized neuropsychological test battery named CANTAB. The score is shown as correct response rate.%
3 month
Pattern recognition memory test
Tidsramme: 3 month
paired associates learning test is a part of computerized neuropsychological tests battery named CANTAB (Cambridge Neuropsychological Test Automated Battery). The score is shown as correct response rate.%
3 month
Spatial working memory test
Tidsramme: 3 month
paired associates learning test is a part of computerized neuropsychological tests battery named CANTAB (Cambridge Neuropsychological Test Automated Battery). The scores are shown as total number of errors.
3 month

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
cognitive failure questionnaire
Tidsramme: 3 month
questionnaire for measuring self reported cognitive status. score range: 0-100. Higher score means worse cognitive status.
3 month
Mini-mental state examination
Tidsramme: 3 month
mini-mental state examination that examines general cognition. range 0-20. Higher score means better cognition.
3 month
Geriatric depression scale
Tidsramme: 3 month
questionnaire for depression measuring. score range:0-15. lower score means less depression.
3 month
Beck anxiety index
Tidsramme: 3 month
questionnaire for self reporting anxiety measuring. range:0-63. low score means less anxiety.
3 month
Seoul instrumental activities of daily living
Tidsramme: 3 month
scale for measuring activities of daily living limitation. score range 0-45. low score means better ability.
3 month
Rey complex figure copy test
Tidsramme: 3 month
test for visuospatial function. Participants should copy the complex figure. score range: 0-36. Higher score means better visuospatial function.
3 month
Digit symbol test
Tidsramme: 3 month
a test for attention and psychomotor speed. Participants are instructed to write an appropriately matched code for each number. Correct number is counted. score range: 0-76. Higher score means better function.
3 month
Seoul verbal learning test, immediate recall
Tidsramme: 3 month
measuring tool for immediate memory function. Investigators read 12 words to participants. Participants should remember the words. Tests are done 3 times. score range: 0-36. Higher score means better immediate memory function
3 month
Seoul verbal learning test, delayed recall
Tidsramme: 3 month
measuring tool for 20 minutes delayed memory function. After 20 minutes from the immediate recall test, participants should remember the words. score range: 0-12. Higher score means better delayed memory function
3 month
Seoul verbal learning test, delayed recall
Tidsramme: 3 month
measuring tool for cued recall of verbal memory function. score range: 0-24. 2. Higher score means better memory recognition function
3 month
Logical memory test, delayed recall
Tidsramme: 3 month
logical memory test is a part of a neuropsychological test named Wechsler
3 month

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Jae-Hong Lee, MD,PhD, Asan Medical Center

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. mai 2014

Primær fullføring (Faktiske)

1. november 2015

Studiet fullført (Faktiske)

1. februar 2016

Datoer for studieregistrering

Først innsendt

18. september 2015

Først innsendt som oppfylte QC-kriteriene

21. september 2015

Først lagt ut (Anslag)

22. september 2015

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

7. august 2018

Siste oppdatering sendt inn som oppfylte QC-kriteriene

6. august 2018

Sist bekreftet

1. august 2018

Mer informasjon

Begreper knyttet til denne studien

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