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Background <p>Mild cognitive impairment (MCI) and its course have multiple determining factors with both detrimental and compensatory processes in the brain. Computerized working memory training can improve cognitive function and individuals with MCI are potential targets. Since more than 1/3 of these individuals develop dementia within 5 years, any intervention postponing the progression will be immensely important. We aim to investigate the efficiency and cost-effectiveness of working memory training in MCI.</p> Methods <p>In this blinded randomized controlled trial, 213 participants will be allocated to three groups: (1) one 5-week period of working memory training, (2) two 5-week periods of working memory training, or (3) the active control group. The participants are followed for a period of 48 months (3, 6, 12, 24, and 48 months). Furthermore, we investigate microstructural effects of working memory training on magnetic resonance imaging and seek to identify high responders to training by assessing the association with function in the glymphatic system and genetic variations. Finally, the impact of working memory training on quality of life and relatives’ stress, and whether it is a cost-effective approach in MCI, will be assessed.</p> Discussion <p>Effective therapy for MCI is lacking. Finding an intervention postponing the progression of MCI is of great importance for patients as well as for the global economy and health care.</p> Trial registration <p>ClinicalTrials.gov NCT04792528. Registered on 02.23.2021.</p>

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The REACT MCI study: a randomized controlled clinical trial on the effect of repeated advanced cognitive training in mild cognitive impairment

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月7日

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  • S. S. Hernes,
  • P. R. Nordnes,
  • H. R. Hol,
  • G. Ringstad,
  • A. B. Knapskog,
  • P. Emhjellen,
  • G. Løhaugen,
  • M. Emini,
  • T. H. Edwin

摘要

Background

Mild cognitive impairment (MCI) and its course have multiple determining factors with both detrimental and compensatory processes in the brain. Computerized working memory training can improve cognitive function and individuals with MCI are potential targets. Since more than 1/3 of these individuals develop dementia within 5 years, any intervention postponing the progression will be immensely important. We aim to investigate the efficiency and cost-effectiveness of working memory training in MCI.

Methods

In this blinded randomized controlled trial, 213 participants will be allocated to three groups: (1) one 5-week period of working memory training, (2) two 5-week periods of working memory training, or (3) the active control group. The participants are followed for a period of 48 months (3, 6, 12, 24, and 48 months). Furthermore, we investigate microstructural effects of working memory training on magnetic resonance imaging and seek to identify high responders to training by assessing the association with function in the glymphatic system and genetic variations. Finally, the impact of working memory training on quality of life and relatives’ stress, and whether it is a cost-effective approach in MCI, will be assessed.

Discussion

Effective therapy for MCI is lacking. Finding an intervention postponing the progression of MCI is of great importance for patients as well as for the global economy and health care.

Trial registration

ClinicalTrials.gov NCT04792528. Registered on 02.23.2021.