Evaluation of a smartphone app for self-monitoring alcohol use

A randomized controlled trial of a self-monitoring smartphone app for reducing risky alcohol drinking - A randomized controlled trial of a self-monitoring smartphone app for reducing risky alcohol drinking

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000041680

Enrollment

260

Registered

2021-06-01

Start date

2021-06-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Risky alcohol drinking

Interventions

Self-monitoring utilizing a smartphone app for 8 weeks Provision of information regarding risky alcohol drinking for 8 weeks

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Risky alcohol drinkers (AUDIT score 8 to 19 points) 2. Those who own a smartphone 3. Those who can communicate via email 4. Those aged 20 years or older

Exclusion criteria

Exclusion criteria: 1. Those who cannot read/write in Japanese 2. Those who unable to access the internet or complete online questionnaires 3. Those who cannot participate in this study for 6 months

Design outcomes

Primary

Measure	Time frame
Alcohol consumption per day in the past week at 8-week follow-up (immediately after the intervention): the TimeLine Follow Back method (TLFB)	—

Secondary

Measure	Time frame
1. Alcohol consumption per day in the past week at 4- and 24-week follow-up: the TLFB 2. The number of alcohol drinking days during the intervention period (56 days): the TLFB 3. Continuance of abstinence: the TLFB 4. Behavioral change: the Japanese version of the University of Rhode Island Change Assessment Scale. 5. Mental health: The General Health Questionnaire-30. 6. Health related QOL: the SF-8.	—

Measure

Time frame

1. Alcohol consumption per day in the past week at 4- and 24-week follow-up: the TLFB 2. The number of alcohol drinking days during the intervention period (56 days): the TLFB 3. Continuance of abstinence: the TLFB 4. Behavioral change: the Japanese version of the University of Rhode Island Change Assessment Scale. 5. Mental health: The General Health Questionnaire-30. 6. Health related QOL: the SF-8.

—

Countries

Japan

Contacts

Public ContactAyumi Takano

Tokyo Medical and Dental University Graduate School of Health Care Sciences, Department of Mental Health and Psychiatric Nursing

ayumi-takano@umin.ac.jp03-5803-5348

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026