UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057526
Receipt number R000065113
Scientific Title Development of a mobile app for a patient-participatory consultation for gastroenterology outpatients with a history of heavy alcohol drinking
Date of disclosure of the study information 2025/04/14
Last modified on 2026/03/19 16:29:59

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Basic information

Public title

Development of an app to enable consultations to listen to patients dealing with alcohol issues.

Acronym

Development of an app to enable consultations to listen to patients dealing with alcohol issues.

Scientific Title

Development of a mobile app for a patient-participatory consultation for gastroenterology outpatients with a history of heavy alcohol drinking

Scientific Title:Acronym

Development of a mobile app for a patient-participatory consultation for gastroenterology outpatients with a history of heavy alcohol drinking

Region

Japan


Condition

Condition

chronic liver disease

Classification by specialty

Hepato-biliary-pancreatic medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Using a smartphone-based communication tool (a sobriety LINE bot), patients will be asked to record their drinking behavior and physical symptoms. The recorded information will be summarized and presented to the physician during medical consultations. This study aims to evaluate whether this tool can effectively share information about alcohol consumption and drinking frequency with the attending physician.

Basic objectives2

Others

Basic objectives -Others

Evaluation of the accuracy of AI summary statements based on sobriety LINEbot input.

Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Evaluation of the accuracy of AI summary statements based on sobriety LINEbot input.

Key secondary outcomes

Evaluation of the accuracy of AI summary statements based on sobriety LINEbot input.
1) Weekly alcohol intake (alcohol equivalents/week) before and after 12 weeks of using the abstinence LINE bot.
2) Number of participants who remained abstinent from alcohol during the participation period / number of participants
3) Number of participants who reduced their alcohol intake by 33% or more before and after the participation period / number of participants
4) Percentage of participants who used the abstinence LINE bot (number of days abstinence LINE bot was used/number of follow-up days)
5) Whether or not the use of the abstinence LINE bot reduced the burden of medical care (questionnaire to examining physicians, VAS display)
6) Descriptive evaluation of medication compliance status if medication status is included in the summary statement.
7) Conduct a survey on the user experience of the LINE chatbot to contribute to functional improvements.


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Prevention

Type of intervention

Other

Interventions/Control_1

Sobriety Diary entry on the Sobriety Line bot

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

1) Patients with hepatic disease attending or hospitalized at the Department of Gastroenterology and Hepatology, KMU Medical Center, or the Department of Gastroenterology and Hepatology, Kansai Medical University Hospital.
2) Patients who are 20 years of age or older at the time of consent (regardless of gender).
3) Patients with a history of heavy drinking of alcohol. Heavy alcohol drinkers are defined here as those who drink in amounts that increase the risk of lifestyle-related diseases (net alcohol intake of 40 g or more per day for men and 20 g or more per day for women).
4) Those who have an AUDIT score of 8 or higher.
5) Those whose physician has determined that abstinence from alcohol or sobriety is necessary as treatment.
6) Those who have agreed to our sobriety intervention regarding abstinence from alcohol or sobriety.
7) Those who have received a thorough explanation of their participation in this study, and who have given written consent of their own free will based on a thorough understanding of the situation.
8) Those who have a smart phone with a LINE account.

Key exclusion criteria

1) Patients who are unwilling to abstain from alcohol or to sobriety
2) Patients who fail to comply with hospital admissions and outpatient visits
3) Patients who refuse sobriety interventions
4) Patients with severe mental illness other than alcohol use disorder
5) Patients who have already been diagnosed with dementia
6) Patients who have been sober for more than one year
7) Other patients deemed inappropriate as research subjects by the principal investigator
8) Patients who cannot consent to the use of the experimental specification communication application (LINE) on their smart phones

Target sample size

90


Research contact person

Name of lead principal investigator

1st name Noriyo
Middle name
Last name Yamashiki

Organization

Kansai Medical University

Division name

Department of Gastroenterology and Hepatology

Zip code

573-1010

Address

2-5-1 Shin-machi, Hirakata City, Osaka

TEL

072-804-0101

Email

yamashiki.nor@kmu.ac.jp


Public contact

Name of contact person

1st name Noriyo
Middle name
Last name Yamashiki

Organization

Kansai Medical University

Division name

Department of Gastroenterology and Hepatology

Zip code

573-1010

Address

2-5-1 Shin-machi, Hirakata City, Osaka

TEL

072-804-0101

Homepage URL


Email

yamashiki.nor@kmu.ac.jp


Sponsor or person

Institute

Kansai Medical University

Institute

Department

Personal name

Noriyo Yamashiki


Funding Source

Organization

Japan Society for the Promortion of Science

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor

Science and Technology, Nara Institute of Science and Technology (NAIST);
Division of Drug Informatics, Keio University Faculty of Pharmacy

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Center for Ethical Review, Kansai Medical University

Address

2-5-1 Shinmachi, Hirakata, Japan

Tel

072-804-0101

Email

rinriirb@hirakata.kmu.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

2025 Year 04 Month 14 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

Enrolling by invitation

Date of protocol fixation

2024 Year 12 Month 03 Day

Date of IRB

2025 Year 01 Month 09 Day

Anticipated trial start date

2025 Year 03 Month 01 Day

Last follow-up date

2028 Year 03 Month 31 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 04 Month 05 Day

Last modified on

2026 Year 03 Month 19 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000065113