NCT04330404

Brief Summary

Subjective cognitive decline (SCD) is the transitional state between normal aging and mild cognitive impairment. SCD is defined as having self-perceived declines in any cognitive domain over time; having normal performance on cognitive testing; no dementia or depression. Cognitive difficulties can lead to a decline on daily function and quality of life. Early intervention can prevent SCD from developing into dementia. Cognitive strategy training (CST) aims to generate individualized strategies to solve cognitive problems, which can be effective to improve daily functions and performances. However, there is limited clinical research aimed at improving daily functions for SCD. Most non-pharmacological studies have conducted objective cognitive training, which may not enhance daily performance. Previous studies also seldom examine the effectiveness of the intervention to improve daily function, quality of life, self-efficacy and motivation. This study adopts a quasi-experimental design. The investigators will recruit 80 community-dwelling people with SCD who are aged 55 and older. There will be 40 participants in each group. The experimental group will receive the CST. The active control group will receive group interactive game. Both groups will have 8 sessions for one hour per week for a total of 8 weeks. Outcome measures include daily function, self-efficacy, motivation for change, and quality of life. Assessments will be performed at baseline, post-intervention, and 3-month follow-up. The demographic data of the two groups will be compared using the independent sample t-test and chi-square test. Changes on outcomes between the two groups will be analyzed by two-way ANOVA. This study was approved by the Human Research Ethics Committee at National Cheng Kung University. All participants provided written informed consent before testing. This study aims to (1) examine the feasibility of the CST in community-dwelling people with SCD; (2) explore the efficacy of the CST on daily function, self-efficacy, motivation for change, and quality of life.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Nov 2019

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2019

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

December 22, 2019

Completed
3 months until next milestone

First Posted

Study publicly available on registry

April 1, 2020

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2020

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2020

Completed
Last Updated

April 1, 2020

Status Verified

March 1, 2020

Enrollment Period

1 year

First QC Date

December 22, 2019

Last Update Submit

March 30, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change from Baseline Canadian Occupational Performance Measure-Chinese version (COPM-C) at post-intervention, and 3-month follow-up.

    Canadian Occupational Performance Measure-Chinese version (COPM-C) is a semi-structured interview questionnaire used to assess self-perceived problems in occupational performance areas. Participants need to identify cognitive-related occupational performance problems, then score the importance from 1 to 10. The higher the score, the more important it is. Participants also need to score their performance and satisfaction from 1 to 10 on the first five important issues. Higher scores mean a better outcome.

    Assessments will be performed at baseline, within one week after the intervention, and 3-month follow-up after the intervention. .

Secondary Outcomes (3)

  • Change from Baseline General Self-Efficacy Scale (GSE) at post-intervention, and 3-month follow-up.

    Assessments will be performed at baseline, within one week after the intervention, and 3-month follow-up after the intervention.

  • Change from Baseline Contemplation ladder at post-intervention, and 3-month follow-up.

    Assessments will be performed at baseline, within one week after the intervention, and 3-month follow-up after the intervention.

  • Change from Baseline COOP/WONCA (World Organization of Family Doctors) charts at post-intervention, and 3-month follow-up.

    Assessments will be performed at baseline, within one week after the intervention, and 3-month follow-up after the intervention.

Study Arms (2)

Cognitive strategy training

EXPERIMENTAL

The experimental group will receive the Cognitive strategy training (CST), which includes awareness enhancement, cognitive-related education, discussion of everyday cognitive difficulties, generation of cognitive strategies, cognitive strategy practice, and homework assignments.

Behavioral: Cognitive strategy training

group interactive game

ACTIVE COMPARATOR

The active control group will receive group interactive game, including table games and games using songs, balloons, newspapers and so on.

Behavioral: group interactive game

Interventions

The Cognitive strategy training, including awareness enhancement, cognitive-related education, discussion of everyday cognitive difficulties, generation of cognitive strategies, cognitive strategy practice, and homework assignments

Cognitive strategy training

The active control group will receive group interactive game, including table games and games using songs, balloons, newspapers and so on.

group interactive game

Eligibility Criteria

Age55 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • aged 55 and above
  • live in community
  • self-perceived decline in cognition compared to five years ago
  • subjective cognitive decline, Cognitive Failure Questionnaire (CFQ) score above zero.

You may not qualify if:

  • objective cognitive impairment, Taiwanese version of the Montreal Cognitive Assessment (MoCA-T) scores below 24
  • any medical, neurological or psychiatric disorders, Brief Symptom Rating Scale (BSRS-5) scores 10 or more
  • severe visual, auditory, verbal or physical impairments interfere with communication, command compliance, and strategy execution
  • participate in other research related to cognitive strategy at the same time.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Occupational Therapy, College of Medicine, National Cheng Kung University

Tainan, 701, Taiwan

Location

Study Officials

  • Shuchen Liu

    Department of Occupational Therapy, College of Medicine, National Cheng Kung University, Taiwan

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
For the interventionist, it is important to build relationships with participants through baseline interviews. The pre-test will be conducted by the interventionist. Assessors at post-intervention, and 3-month follow-up will be blind to the group allocation.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The experimental group will receive the Cognitive strategy training. The active control group will receive group interactive game.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Graduate student, Department of Occupational Therapy, College of Medicine

Study Record Dates

First Submitted

December 22, 2019

First Posted

April 1, 2020

Study Start

November 1, 2019

Primary Completion

October 31, 2020

Study Completion

December 31, 2020

Last Updated

April 1, 2020

Record last verified: 2020-03

Data Sharing

IPD Sharing
Will not share

Locations