NCT07463391

Brief Summary

Subjective cognitive decline (SCD) is considered a preclinical condition associated with an increased risk of dementia and Alzheimer's disease. Effective early behavioral interventions remain limited, and the neurobiological mechanisms underlying cognitive training effects are not fully understood, particularly in culturally specific educational contexts. This randomized, assessor-blinded, controlled clinical trial will enroll 60 individuals with SCD to evaluate the effects of a six-month structured Chinese Classics recitation training program. Participants will be randomly assigned to either an intervention group or a non-active control group. Assessments will be conducted at baseline, immediately post-intervention, and during annual follow-up. Multimodal evaluations will include neuropsychological testing, functional magnetic resonance imaging (fMRI), electroencephalography (EEG), blood biomarker profiling, gut microbiota analysis, and fecal metabolomics. The study aims to examine clinical outcomes and explore potential neurobiological and systemic correlates associated with culturally adapted cognitive training.

Trial Health

63
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Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
78mo left

Started Aug 2026

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

First Submitted

Initial submission to the registry

March 1, 2026

Completed
10 days until next milestone

First Posted

Study publicly available on registry

March 11, 2026

Completed
5 months until next milestone

Study Start

First participant enrolled

August 1, 2026

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2029

Expected
3.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2032

Last Updated

March 11, 2026

Status Verified

March 1, 2026

Enrollment Period

3 years

First QC Date

March 1, 2026

Last Update Submit

March 5, 2026

Conditions

Keywords

subjective cognitive declinememory trainingChinese Classicsrecitationrandomized controlled trial

Outcome Measures

Primary Outcomes (1)

  • Change in task-related brain activation measured by functional MRI

    Unit of measure: Whole-brain blood-oxygen-level-dependent (BOLD) signal change (%) Detail Functional magnetic resonance imaging (fMRI) will be used to evaluate changes in task-related brain activation associated with the intervention. Whole-brain blood-oxygen-level-dependent (BOLD) signals will be analyzed using voxel-wise general linear modeling to identify activation patterns during task performance compared with resting baseline. First-level analyses will generate subject-specific contrast maps reflecting task-related neural activation. Group-level random-effects analyses will then be conducted to compare activation patterns between study groups and across time points. Statistical significance will be determined using a voxel-level threshold corrected for multiple comparisons using the false discovery rate (FDR). Effect sizes extracted from significant brain regions will be used for group-level comparisons.

    Baseline and 6 months

Secondary Outcomes (17)

  • Resting-state electroencephalogram (EEG) spectral activity

    Baseline and 6 months

  • Global Cognitive Function - MMSE

    Baseline and 6 months

  • Global Cognitive Function - MoCA

    Baseline and 6 months

  • Verbal Episodic Memory - RAVLT

    Baseline and 6 months

  • Executive Function - Stroop Test

    Baseline and 6 months

  • +12 more secondary outcomes

Study Arms (2)

Intervention

EXPERIMENTAL

Chinese Classics Recitation for six months

Behavioral: Memory training by Chinese Classics recitation

non-active control

NO INTERVENTION

Interventions

At least five minutes memory training per day, for six months

Intervention

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥ 60 years old
  • At least two "yes" responses to the following questions are required:
  • Forgetting where things are placed?
  • Unable to recall the names of good friends?
  • Unable to follow and recall conversation?
  • Subjective memory problems?
  • Consider own memory to be worse than others of a similar age?

You may not qualify if:

  • Objective cognitive impairment defined as ≥ 1.5 standard deviations below standardized cognitive testing (e.g., MMSE)
  • Diagnosis of MCI
  • Clinical Dementia Rating (CDR) ≥ 0.5
  • Diagnosis of major depressive disorder
  • Beck Anxiety Inventory score ≥ 16
  • Other medical or neurological conditions that could explain cognitive decline (e.g., vascular dementia, traumatic brain injury)
  • Claustrophobia
  • Contraindications of MRI (e.g., non-MRI-compatible cardiac pacemaker or devices implanted within the past three months)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

China Medical University Hospital

Taichung, 404, Taiwan

Location

Central Study Contacts

Sheng-Ta Tsai, M.D., Ph.D.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

March 1, 2026

First Posted

March 11, 2026

Study Start

August 1, 2026

Primary Completion (Estimated)

July 31, 2029

Study Completion (Estimated)

December 31, 2032

Last Updated

March 11, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will share

De-identified individual participant data will be made available upon reasonable request after publication.

Locations