NCT06524388

Brief Summary

Objective A growing body of evidence supports diabetes as a risk factor for cognitive decline. Diabetes is significantly associated with accelerated cognitive decline, poorer cognitive function, and mild cognitive impairment and dementia. Cognitive training is an effective intervention to improve cognitive function. However, the current cognitive training does not fully consider the different areas and degrees of cognitive function impairment of older adults. This study aims to evaluate the effect of adaptive cognitive training on cognitive function of older adults with hypertension in the community. Participants Age 60 years or older, diagnosis of diabetes, fasting blood glucose≥6.1mmol/L and cognitive function assessment showed no dementia. Design The study was designed as a double-blind randomized controlled trial. 120 diabetes participants without dementia aged 60 years or older in Shijingshan, Beijing and Haidian, Beijing were included. Participants will be randomized to adaptive cognitive training (intervention group) and placebo cognitive training (control group) at a ratio of 1:1. Both training will be delivered by using PADs with the same appearance. The interventions will last for 6 months and follow up to 12 months, and both groups will be followed up on the same time schedules for all outcome measurements. The primary outcome is changes in MoCA scores from baseline to post-intervention, 6 months. The current trial has been reviewed by the Ethics Committee of Plastic Surgery Hospital, Chinese Academy of Medical Sciences \& Peking Union Medical College (approval number: 2024-162).

Trial Health

75
On Track

Trial Health Score

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

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
13mo left

Started Oct 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

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

Study Progress59%
Oct 2024Jun 2027

First Submitted

Initial submission to the registry

July 23, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

July 29, 2024

Completed
3 months until next milestone

Study Start

First participant enrolled

October 29, 2024

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2026

Expected
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

December 4, 2025

Status Verified

February 1, 2025

Enrollment Period

1.8 years

First QC Date

July 23, 2024

Last Update Submit

November 27, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Montreal Cognitive Assessment (MoCA)

    MoCA has been widely used in the cognitive function assessment of middle-aged and elderly people in China, including executive function, memory, orientation, computation, conceptual thinking, visual perception, language, and attention. The MoCA scale scores ranged from 0 to 30, and the lower the score, the worse the cognitive function.

    baseline; "post-intervention, 12weeks"

Secondary Outcomes (9)

  • Montreal Cognitive Assessment (MoCA)

    baseline; 6 week-intervention; "post-intervention, 12 weeks"; 24 weeks follow-up

  • the Trail Making Test (TMT)

    baseline; 6 week-intervention; "post-intervention, 12 weeks"; 24 weeks follow-up

  • the Digit Symbol Substitution Test (DSST)

    baseline; 6 week-intervention; "post-intervention, 12 weeks"; 24 weeks follow-up

  • the WHO-UCLA Auditory Verbal Learning Test(AVLT)

    baseline; 6 week-intervention; "post-intervention, 12 weeks"; 24 weeks follow-up

  • the Boston Naming Test (BNT)

    baseline; 6 week-intervention; "post-intervention, 12 weeks"; 24 weeks follow-up

  • +4 more secondary outcomes

Study Arms (2)

adaptive cognitive training

EXPERIMENTAL

The intervention lasted for 12 weeks. Participants will revieve 30 minutes of training per day, at least five days per week. In each task, once a high accuracy (e.g. \>80%) is achieved, the task is automatically upgraded to the next difficulty level.

Device: adaptive cognitive training

placebo cognitive training

PLACEBO COMPARATOR

The intervention lasted for 12 weeks. Participants will revieve 30 minutes of training per day, at least five days per week. The tasks will be set to a fixed level of difficulty.

Device: placebo cognitive training

Interventions

The intervention was computerized, multi-domain, adaptive cognitive training. Training areas include processing speed, attention, perception, long-term memory, working memory, computation, executive control, reasoning, and problem-solving. Embedded in the Adaptive Cognitive training application is an adaptive algorithm that will help provide each participant with a cognitive training task at the right level of difficulty based on their profile and real-time performance.

adaptive cognitive training

Participants received cognitive training tasks of fixed difficulty.

placebo cognitive training

Eligibility Criteria

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

You may qualify if:

  • with a clear diagnosis of diabetes (according to ICD-10 or DSM-criteria), fasting blood glucose≥6.1mmol/L, maintaining the original diabetes treatment strategy
  • age ≥60 years old
  • literate and able to use smart phone or tablet computer skillfully, with CAIDE dementia risk score \>9, but without a diagnosis of dementia (ICD-10 or DSM-dementia diagnostic criteria)
  • have lived in the target community for at least 6 months and continue to live in the original community for the next 12 months

You may not qualify if:

  • Stroke or brain surgery in the previous 12 months
  • Alcohol or drug abuse in the past 12 months
  • Families, important people of participants in the study have concerns
  • Live in the same household as a participant who has been randomly assigned
  • Severe aphasia, physical disability, or any other factor that may prevent completion of neuropsychological testing
  • Use of medications that may affect cognition, including sedatives, anxiolytics, hypnotics, nootropics, and cholinergic drugs; Refusing or not receiving cognitive training
  • currently participating in another clinical trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Xihuangcun Hospital

Beijing, 100144, China

Location

Related Publications (1)

  • Pan Y, Ji M, Liang J, Ma J, Zhang W, Liu Y, Dai Y, Gao D, Zhang Y, Xie W, Zheng F. Effects of COgNitive Training in Community-dwelling Older Adults at High Risk for demENTia (CONTENT): study protocol of two double-blind, randomised, placebo-controlled trials. BMJ Open. 2026 Feb 9;16(2):e095515. doi: 10.1136/bmjopen-2024-095515.

MeSH Terms

Conditions

Diabetes Mellitus, Type 2

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

July 23, 2024

First Posted

July 29, 2024

Study Start

October 29, 2024

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

June 1, 2027

Last Updated

December 4, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will share

Trial outcome data and essential baseline characteristics data are available upon request. Researchers interested in accessing the trial dataset should contact the corresponding author with details of their proposed research use. Data access will be provided subject to review and approval of the research protocol and execution of a data use agreement.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE

Locations