NCT06110858

Brief Summary

Given that preventing and delaying the onset of dementia is a crucial public health policy issues worldwide, it is essential to develop effective interventions and implement early interventions before the onset of dementia. Subjective Cognitive Decline (SCD) is considered the earliest manifestation of dementia and individuals with SCD may have a higher risk for future cognitive decline and dementia. Despite performing normally on objective cognitive tests, individuals with SCD have been found to exhibit worse performance on some cognitive domains, including executive functions, compared to those without SCD. Executive Functions (EFs) refer to a set of cognitive processes that include working memory, inhibition, cognitive flexibility, planning, problem solving and reasoning, enabling individuals to achieve goals by controlling and regulating thoughts and behaviors. EFs are important for our daily functioning and their decline can negatively impact an individual's quality of life. However, to our knowledge, there is limited research on maintaining or improving EFs in individuals with SCD. Tinkering Activity (TA) is a hands-on cognitive activity that emphasizes process of problem-solving, active engagement and open-ended exploration, which challenges EFs. In addition, previous research has shown the benefits of TA for community-dwelling older adults. Therefore, the goal of this clinical tri is to examine the efficacy of TA based cognitive intervention in enhancing EFs in individuals with SCD. This study will be a one-group pretest-posttest design. Twelve to fifteen individuals with SCD will be recruited from the communities. All participants will receive 12 intervention sessions, each lasting 2 hours, with two sessions per week for 6 weeks. All participants will be assessed before and after the intervention.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
12

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

2 active sites

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 26, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

November 1, 2023

Completed
12 days until next milestone

Study Start

First participant enrolled

November 13, 2023

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 29, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 29, 2024

Completed
Last Updated

September 20, 2024

Status Verified

October 1, 2023

Enrollment Period

10 months

First QC Date

October 26, 2023

Last Update Submit

September 18, 2024

Conditions

Keywords

Subjective Cognitive DeclineCognitive InterventionExecutive FunctionProblem SolvingCognitive Flexibility

Outcome Measures

Primary Outcomes (3)

  • Changes of Tower of Hanoi task(TOH)

    Scoring takes into account the number of movements, completion times, and the number of violations. Fewer movements, shorter completion times, and fewer violations indicate better planning and problem-solving.

    Week 0, Week 6

  • Changes of Task Switching Paradigm(TS)

    Scoring takes into account reaction time and accuracy. Faster reaction times and higher accuracy indicate better cognitive flexibility.

    Week 0, Week 6

  • Changes of Colour Trails Test-2(CTT-2)

    Scoring takes into account times, colour errors, number errors, near-misses and prompts. Fewer times, colours errors, number errors, near-misses and prompts indicate better cognitive flexibility.

    Week 0, Week 6

Secondary Outcomes (12)

  • Changes of Guilford's Alternative Uses Task(GAU)

    Week 0, Week 6

  • Changes of Remote Associates Test(RAT)

    Week 0, Week 6

  • Changes of the Brief University of California San Diego Performance-Based Skills Assessment-Traditional Chinese Version(UPSA-B)

    Week 0, Week 6

  • Changes of Computerized Everyday Cognitive Function Assessment(CECFA)

    Week 0, Week 6

  • Changes of the Taiwanese version of the Montreal Cognitive Assessment(MoCA-T)

    Week 0, Week 6

  • +7 more secondary outcomes

Study Arms (1)

Tinkering Activities

EXPERIMENTAL
Behavioral: Tinkering Activities

Interventions

Tinkering activities encompass elements of science, art and technology. They emphasize that learning is not simply about teachers imparting knowledge to students, but rather about students actively constructing knowledge themselves. Tinkering activities are characterized by three key elements: active engagement, open-ended exploration and problem-solving. In such activities, participants are provided with products without telling the steps. They are then encouraged to attempt creating it on their own. During this hands-on learning process, participants need to flexibly change their mindset, think outside the box and tackle emerging problems, which challenge their executive functions.

Tinkering Activities

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥50 years
  • Can communicate in Mandarin and is literate in Chinese
  • No impairment in basic activities of daily living(BADL) or Barthel Index score of 100
  • Score \>23 on the Taiwanese version of the Montreal Cognitive Assessment(MoCA-T)
  • Willing and able to participate fully in the intervention
  • Individuals with Subjective Cognitive Decline, screened from the communities:
  • Experience subjective cognitive difficulties: answered "yes" to any questions in part I of the Subjective Cognitive Decline Scale(SCDS).
  • Display normal performance in the Color Trails Test and Word Lists Test of the Wechsler Memory Scale-3rd Edition(after adjustment of age, gender and education, scoring on average above -1.5 standard deviations)

You may not qualify if:

  • Diagnosed with Mild Cognitive Impairment(MCI) or Dementia
  • Cognitive changes due to psychiatric or neurological disorders, substance abuse, and those with unstable conditions and symptomatic disturbances, or a score of ≥ 29 on the Beck Depression Inventory II (BDI-II)
  • Unable to participate due to physical illnesses
  • Severe impairment in visual and auditory abilities
  • Participated in other cognitive training while engaged in this study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

National Taiwan University

Taipei, Taiwan

Location

School of Occupational Therapy, College of Medicine, National Taiwan University

Taipei, Taiwan

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 26, 2023

First Posted

November 1, 2023

Study Start

November 13, 2023

Primary Completion

August 29, 2024

Study Completion

August 29, 2024

Last Updated

September 20, 2024

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will not share

Locations