UMIN-CTR Clinical Trial
| Unique ID issued by UMIN | UMIN000058812 |
|---|---|
| Receipt number | R000067255 |
| Scientific Title | A study of the effectiveness of capitalization using AI chatbots |
| Date of disclosure of the study information | 2025/08/20 |
| Last modified on | 2025/08/16 08:48:00 |
* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments
Basic information
Public title
A study of positive psychology intervention using AI chatbots for workers
Acronym
A study of positive psychology intervention using AI chatbots for workers
Scientific Title
A study of the effectiveness of capitalization using AI chatbots
Scientific Title:Acronym
A study of the effectiveness of capitalization using AI chatbots
Region
| Japan |
Condition
Condition
Healthy Adult Population
Classification by specialty
| Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
To examine the effects of an intervention based on capitalization using an AI chatbot for mental health and work-related outcomes among workers.
Basic objectives2
Efficacy
Basic objectives -Others
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
Perceived stress (PSS)
Emotions (PANAS, Affect Grid)
Creativity (self-perceived creativity)
Key secondary outcomes
Psychological distress (K6)
Generalised Anxiety (GAD-7)
Loneliness (UCLA)
Satisfaction with Life (SWLS)
Optimism (LOT-R)
Self-esteem (RSES)
Self-compassion (SCS)
Automatic thoughts (ATQ)
Cognitive flexibility (CFS)
Cognitive Emotion Regulation (CERQ)
Health and Work Performance (WHO-HPQ)
Occupational Stress (Occupational Stress Brief Survey)
Psychological safety (Psychological Safety Scale)
Recovery experience (REQ)
Job crafting (JCS)
Job Instability (JIS)
Perception of AI responses (PRCA)
Work alliance (WAI-SR)
Impressions of Robots (Godspeed Questionnaire)
Insomnia (ISI)
Bedtime Procrastination Tendency (BPS)
Eating Habits (Lettuce)
Base
Study type
Interventional
Study design
Basic design
Cross-over
Randomization
Randomized
Randomization unit
Individual
Blinding
Open -no one is blinded
Control
No treatment
Stratification
NO
Dynamic allocation
NO
Institution consideration
Institution is not considered as adjustment factor.
Blocking
YES
Concealment
Pseudo-randomization
Intervention
No. of arms
2
Purpose of intervention
Educational,Counseling,Training
Type of intervention
| Behavior,custom |
Interventions/Control_1
<Intervention group>
Using an AI chatbot, participants engage in a conversation about "something good that happened today" once a day for one month.
Interventions/Control_2
<Control group>
Nothing will be provided for waiting-list controls.
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
| 18 | years-old | <= |
Age-upper limit
| 54 | years-old | >= |
Gender
Male and Female
Key inclusion criteria
Employees working more than 20 hours per week
Key exclusion criteria
(1) Not on administrative leave
(2) Not having been diagnosed with a mental health disorder
(3) Not a student
(4) Japanese is the language used in everyday conversation.
Target sample size
140
Research contact person
Name of lead principal investigator
| 1st name | Ryu |
| Middle name | |
| Last name | Takizawa |
Organization
The University of Tokyo
Division name
Graduate School of Education
Zip code
113-0033
Address
7-3-1, Hong, Bunkyuo-ku, Tokyo
TEL
0358411397
takizawar-tky@umin.ac.jp
Public contact
Name of contact person
| 1st name | Ryu |
| Middle name | |
| Last name | Takizawa |
Organization
The University of Tokyo
Division name
Graduated School of Education
Zip code
113-0033
Address
7-3-1, Hongo, Bukyo-ku, Tokyo
TEL
0358411397
Homepage URL
takizawar-tky@umin.ac.jp
Sponsor or person
Institute
The University of Tokyo
Institute
Department
Personal name
Ryu Takizawa
Funding Source
Organization
Japan Society for the Promotion of Science (JSPS)
Organization
Division
Category of Funding Organization
Non profit foundation
Nationality of Funding Organization
Japan
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
Office for Life Science Research Ethics and Safety of The University of Tokyo
Address
7-3-1, Hongo, Bunkyo-ku, Tokyo
Tel
03-5841-0620
kenkyu-kihan.adm@gs.mail.u-tokyo.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
東京大学大学院教育学研究科滝沢研究室（東京都）／Graduate School of Education, The University of Tokyo・Takizawa Lab.
Other administrative information
Date of disclosure of the study information
| 2025 | Year | 08 | Month | 20 | 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
Preinitiation
Date of protocol fixation
| 2025 | Year | 08 | Month | 05 | Day |
Date of IRB
| 2025 | Year | 08 | Month | 04 | Day |
Anticipated trial start date
| 2025 | Year | 08 | Month | 20 | Day |
Last follow-up date
| 2025 | Year | 11 | Month | 30 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
Management information
Registered date
| 2025 | Year | 08 | Month | 16 | Day |
Last modified on
| 2025 | Year | 08 | Month | 16 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067255
