UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058012
Receipt number R000066312
Scientific Title Unguided Web-Based Brief Intervention with Genetic Risk Education to Reduce Unhealthy Alcohol Consumption: Protocol for a Randomized Controlled Trial
Date of disclosure of the study information 2025/05/29
Last modified on 2025/05/29 15:01:13

* 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 brief intervention to promote health behaviors: A randomized controlled trial.

Acronym

BIGRE Trial

Scientific Title

Unguided Web-Based Brief Intervention with Genetic Risk Education to Reduce Unhealthy Alcohol Consumption: Protocol for a Randomized Controlled Trial

Scientific Title:Acronym

BIGRE Trial

Region

Japan


Condition

Condition

Japanese adults with ALDH2*2 genotype who drink alcohol at moderate levels

Classification by specialty

Medicine in general

Classification by malignancy

Others

Genomic information

YES


Objectives

Narrative objectives1

Alcohol use is one of the leading causes of disease burden worldwide and a major risk factor for esophageal cancer for those with the aldehyde dehydrogenase 2*2 (ALHD2*2) genotype. Reducing alcohol consumption can significantly reduce the risks of developing esophageal cancer. The present study will investigate the efficacy of a non-invasive and unguided web-based brief intervention (BI) using genetic risk education (BIGRE) to moderate alcohol consumption in the Japanese general population. This approach presents less costly and more scalable intervention approaches, reducing healthcare system burdens.

Basic objectives2

Others

Basic objectives -Others

To inform future iterations of unguided web-based BI interventions in terms of development and feasibility.

Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Mean endpoint past 4-week alcohol quantity at 3 months post-randomization, measured in the number of standard drinks with the Daily Drinking Questionnaire (DDQ).

Key secondary outcomes

Secondary outcomes include the quantity or standard drinks at 1- and 2-month follow-ups; alcohol use in grams, severity, motivation to change, health knowledge retention, and quality of life at 1-, 2-month, and 3-month follow-ups post-randomization. Participant satisfaction will be measured after the intervention program has been delivered.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Behavior,custom

Interventions/Control_1

BIGRE Intervention Group
BIGRE consists of an animated educational video with a host medical doctor avatar voiced by a professional voice-over artist. It provides spoken information, animated content, and graphical depictions of graphs, charts, and genetic processes. The components will emphasize that they are likely ALDH2*2 carriers, they have an increasing risk for specific cancers with increased alcohol consumption, and reducing alcohol consumption reduces the risk of developing alcohol-related cancers.

Interventions/Control_2

Sham Control Group
The control group will receive a sham attention control video that describes the importance of quality of life (QoL) and health, description of QoL concepts, and ways to change health behaviors to improve QoL. The sham control intervention consists of an animated educational video with a host medical doctor avatar voiced by a professional voice-over artist. It provides spoken information and animated content. The video will last 6 minutes.

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

64 years-old >=

Gender

Male and Female

Key inclusion criteria

1. 20 to 64 years of age
2. At least 4 alcohol drinks per week on average
3. Positive screening for probable ALDH2*2 allele

Key exclusion criteria

1. Current alcohol use treatment
2. Lifetime cancer diagnosis
3. Pregnant

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Ethan
Middle name Kyle
Last name Sahker

Organization

Kyoto University Graduate School of Medicine

Division name

Population Health and Policy Research Unit, Center for Medical Education and Internationalization

Zip code

606-8501

Address

Faculty of Medicine Campus, Bldg E, Rm 109

TEL

075-753-9292

Email

sahker.ethan.2e@kyoto-u.ac.jp


Public contact

Name of contact person

1st name Ethan
Middle name Kyle
Last name Sahker

Organization

Kyoto University Graduate School of Medicine

Division name

Population Health and Policy Research Unit, Center for Medical Education and Internationalization

Zip code

606-8501

Address

Faculty of Medicine Campus, Bldg E, Rm 109

TEL

075-753-9292

Homepage URL


Email

sahker.ethan.2e@kyoto-u.ac.jp


Sponsor or person

Institute

Kyoto University

Institute

Department

Personal name



Funding Source

Organization

Japan Society for the Promotion of Science (24K20239)

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto University Graduate School of Medicine and Faculty of Medicine, Ethics Committee

Address

53 Shogoin-kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan

Tel

075-366-7618

Email

ethcom@kuhp.kyoto-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

2025 Year 05 Month 29 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 05 Month 29 Day

Date of IRB


Anticipated trial start date

2025 Year 08 Month 01 Day

Last follow-up date

2025 Year 08 Month 01 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 05 Month 29 Day

Last modified on

2025 Year 05 Month 29 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066312