UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000063187
Receipt number R000071887
Scientific Title A Study to Evaluate the Equivalence Between the Self-Administered Digital Cognitive Assessment Tool MoCA Solo-J and Its Paper-Based Version, MoCA-J
Date of disclosure of the study information 2026/10/06
Last modified on 2026/10/06 11:15:09

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Basic information

Public title

A Study to Evaluate the Equivalence Between the Self-Administered Digital Cognitive Assessment Tool MoCA Solo-J and Its Paper-Based Version, MoCA-J

Acronym

An Equivalence Study of MoCA Solo-J and the Paper-Based MoCA-J

Scientific Title

A Study to Evaluate the Equivalence Between the Self-Administered Digital Cognitive Assessment Tool MoCA Solo-J and Its Paper-Based Version, MoCA-J

Scientific Title:Acronym

An Equivalence Study of MoCA Solo-J and the Paper-Based MoCA-J

Region

Japan


Condition

Condition

To verify the equivalence between the paper-and-pencil cognitive assessment tool MoCA-J (Japanese version of the Montreal Cognitive Assessment) and MoCA Solo-J, a fully self-administered digital cognitive assessment tool (Japanese version of MoCA Solo).

Classification by specialty

Neurology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To verify the equivalence between the paper-and-pencil cognitive assessment tool MoCA-J (Japanese version of the Montreal Cognitive Assessment) and MoCA Solo-J, a fully self-administered digital cognitive assessment tool (Japanese version of MoCA Solo).

Basic objectives2

Others

Basic objectives -Others

This study will enroll 50 patients aged 40-90 years with subjective or objective cognitive complaints who visit the Department of Neurology at Oita University Hospital. Using a prospective, randomized crossover design, each participant will undergo both the paper-and-pencil MoCA-J and MoCA Solo-J, administered approximately 4 weeks apart (+/-7 days). The study will evaluate the agreement between the total scores of the two tests (using CCC, RMSD, etc.), the correlation of domain-specific scores, systematic bias, the effect of the avatar-guided self-administration feature on participant performance, and usability (ease of use, burden, completion rate without assistance, etc.). The overall aim is to establish the clinical validity and utility of MoCA Solo-J as a screening tool for mild cognitive impairment (MCI) in Japan.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Agreement between the total scores of the paper-and-pencil MoCA-J and MoCA Solo-J, assessed by:

Concordance Correlation Coefficient (CCC)
Root Mean Squared Difference (RMSD)
Distribution of the discrepancy score, and the proportion of participants whose scores differ by 1 point or less and 2 points or less

Equivalence criteria: Excellent = CCC 0.90 or higher with 80% or more of participants within +/-2 points; Good = CCC 0.80 or higher with 70% or more; Acceptable = CCC 0.70 or higher with 60% or more.

Key secondary outcomes

1. Correlation between the two tests for each cognitive domain score (visuospatial/executive function, attention, language and naming, abstraction, memory, orientation), using Pearson's correlation coefficient
2. Difference in mean domain scores between the two tests (paired t-test)
3. Assessment of systematic bias (Bland-Altman plot, one-sample t-test, linear regression)
4. Test administration time, date/time of administration, and interval between tests
5. Rate of completion without assistance and number of assistance events for MoCA Solo-J
6. Usability assessment via brief questionnaires for both administrators and participants (ease of use, perceived burden, perceived differences between the paper and digital versions, and intended follow-up actions/behavior change after receiving results)
7. Agreement in stratified analyses by background factors (age group, years of education, sex, cognitive function level, and technology familiarity)


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

40 years-old <=

Age-upper limit

90 years-old >

Gender

Male and Female

Key inclusion criteria

Patients visiting the Department of Neurology, Oita University Hospital, who meet all of the following criteria:
1) Patients with subjective or objective cognitive complaints (selected at the discretion of the physician)
2) Patients aged 40 years or older and 90 years or younger at the time of consent
3) Native Japanese speakers
4) Patients who are able to understand the explanation of the study and provide written informed consent by themselves

Key exclusion criteria

Patients who meet any of the following criteria are excluded:
1) Patients newly prescribed anti-dementia drugs within the past 6 months (patients on long-term anti-dementia drug treatment with stable symptoms are eligible)
2) Patients whose anti-dementia medication was started or changed within the past 1 month
3) Patients with severe cognitive impairment
4) Patients with severe psychiatric disorders (such as schizophrenia or bipolar disorder)
5) Patients with alcohol or drug dependence
6) Patients with a history of serious head trauma
7) Patients with marked visual or hearing impairment
8) Patients with a physical disability that makes the use of a tablet device markedly difficult
9) Patients with suspected dementia with Lewy bodies (due to large fluctuations in cognitive function)
10) Patients judged to be inappropriate as study participants by the investigators for any other reason

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Noriyuki
Middle name
Last name Kimura

Organization

Oita University Faculty of Medicine

Division name

Department of Neurology

Zip code

879-5593

Address

1-1 Idaigaoka, Hasma, Yufu, Oita, Japan

TEL

097-586-5814

Email

noriyuki@oita-u.ac.jp


Public contact

Name of contact person

1st name Shinichi
Middle name
Last name Murayama

Organization

Theoria technologies Co., Ltd.

Division name

Product Development Department

Zip code

100-0011

Address

17F Hibiya Parkfront, 2-1-6 Uchisaiwai-cho, Chiyoda-ku, Tokyo , Japan

TEL

03-6777-9129

Homepage URL


Email

s.murayama@theoriatec.com


Sponsor or person

Institute

Oita University Faculty of Medicine

Institute

Department

Personal name



Funding Source

Organization

Theoria technologies Co., Ltd.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

The institutional review board of Oita University, Faculty of medicine

Address

1-1 Idaigaoka, Hasma, Yufu, Oita, Japan

Tel

097-586-5157

Email

rinrikenkyu@oita-u.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 10 Month 06 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled

50

Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2025 Year 12 Month 08 Day

Date of IRB

2026 Year 01 Month 28 Day

Anticipated trial start date

2026 Year 03 Month 02 Day

Last follow-up date

2026 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Prospective observational study. Each participant undergoes both the paper-and-pencil MoCA-J and MoCA Solo-J, with an interval of 4 weeks (+/-7 days) between the two assessments. To offset learning effects and order effects, the order of the two assessments is determined at random by computer after informed consent is obtained: Arm A (paper MoCA-J first, then MoCA Solo-J) or Arm B (MoCA Solo-J first, then paper MoCA-J). Both assessments are cognitive screening tests used in routine clinical practice, and no medical intervention other than the assessments is allocated. Scoring is performed by a physician or psychologist through the administrator portal using de-identified data.


Management information

Registered date

2026 Year 10 Month 06 Day

Last modified on

2026 Year 10 Month 06 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071887