UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000046682
Receipt number R000053251
Scientific Title Elucidation of the mechanism of visual hallucinations in dementia and development of a new test
Date of disclosure of the study information 2022/01/24
Last modified on 2022/01/21 17:01:42

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Basic information

Public title

Elucidation of the mechanism of visual hallucinations in dementia and development of a new test

Acronym

Elucidation of the mechanism of visual hallucinations in dementia and development of a new test

Scientific Title

Elucidation of the mechanism of visual hallucinations in dementia and development of a new test

Scientific Title:Acronym

Elucidation of the mechanism of visual hallucinations in dementia and development of a new test

Region

Japan


Condition

Condition

1. Patients with dementia, mild cognitive impairment, or subjective cognitive impairment
2. Healthy volunteers

Classification by specialty

Psychiatry Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to develop an algorithm to estimate the presence and severity of dementia, mild cognitive impairment, and subjective cognitive impairment using data from the Pareidolia test, and to extract features of the diseases and build a face detection model to emulate visual hallucination.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Features extracted from the results of the pareidolia test using machine learning.

Key secondary outcomes



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

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients who meet the following 1), 2), and 3) criteria will be included in the prospective observation, and patients who meet the following 4) criteria will be included in the retrospective observation.

1) Out/in-patients at study sites diagnosed as dementia, mild cognitive impairment, or subjective cognitive impairment, or healthy volunteers who are offered participation to the study through web site.
2) 20 years old or older
3) Decisionally not impaired judged by treating physician. If judged as decisionally impaired, patients' guardians can give consent
4) Patients who underwent pareidolia testing for clinical necessity at study sites between June 1, 2012 and November 30, 2020, and who were20 years old or older.

Key exclusion criteria

1) Patients whose illness can be exacerbated by interview of the study.
3) Those who are considered to be ineligible by the PI or investigators.

Target sample size

200


Research contact person

Name of lead principal investigator

1st name Taishiro
Middle name
Last name Kishimoto

Organization

Keio University School of Medicine

Division name

Hills Joint Research Laboratory for Future Preventive Medicine and Wellnes

Zip code

106-0032

Address

Roppongi Hills North Tower 7F, 6-2-31 Roppongi, minato-ku, Tokyo, Japan

TEL

03-5786-0006

Email

tkishimoto@keio.jp


Public contact

Name of contact person

1st name Momoko
Middle name
Last name Kitazawa

Organization

Keio University School of Medicine

Division name

Department of Neuropsychiatry

Zip code

160-8582

Address

35 Shinanomachi, Shinjuku-ku, Tokyo, JAPAN

TEL

03-5363-3492

Homepage URL

http://psy.keiomed.jp/research/34.html_http://psy.keiomed.jp/research/34.html

Email

m.kitazawa@keio.jp


Sponsor or person

Institute

Keio University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Japan Science and Technology Agency (JST)

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor

National Institute of Informatics
Tokyo Dental College Ichikawa General Hospital
Tsutsuji Mental Hospital

Name of secondary funder(s)



IRB Contact (For public release)

Organization

The Clinical and Translational Research Center

Address

35 Shinanomachi, Shinjuku-ku, Tokyo, JAPAN

Tel

03-3353-1211

Email

med-rinri-jimu@adst.keio.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

2022 Year 01 Month 24 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


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

Open public recruiting

Date of protocol fixation

2021 Year 05 Month 11 Day

Date of IRB

2021 Year 06 Month 28 Day

Anticipated trial start date

2021 Year 07 Month 24 Day

Last follow-up date

2025 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This study will use both newly collected pareidolia test data from prospective observation and existing pareidolia test data collected from retrospective observation. Consent forms will be obtained for subjects undergoing prospective observation, and opt-out will be provided for use of data under retrospective observation.

For healthy volunteers, the Mini-Mental State Examination (MMSE) will be administered in conjunction with the Pareidolia test to confirm that they do not have DSM-5 dementia or mild cognitive impairment.

The observation items for the prospective and retrospective observations are as follows,
A: Background factors and information on cognitive function
Background information on diagnosis, gender, severity, and duration of illness will be obtained from medical records. The MMSE will be administered to healthy volunteers.
B: Results of pareidolia test
The number of correct answers, the number of pareidolia, the number of oversights, the illusory response rate, and the location of the illustration where the hallucination occurred.


Management information

Registered date

2022 Year 01 Month 20 Day

Last modified on

2022 Year 01 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000053251


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name