UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058728
Receipt number R000067144
Scientific Title Effect of AI Advisory on Step Count Increase: A Randomized Controlled Trial
Date of disclosure of the study information 2025/08/07
Last modified on 2025/08/07 16:11:30

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Basic information

Public title

Effect of AI Advisory on Step Count Increase: A Randomized Controlled Trial

Acronym

Effect of AI Advisory on Step Count Increase Trial

Scientific Title

Effect of AI Advisory on Step Count Increase: A Randomized Controlled Trial

Scientific Title:Acronym

AI-RAC Trial

Region

Japan


Condition

Condition

healthy subjects

Classification by specialty

Medicine in general Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The World Health Organization (WHO) recommends that adults engage in physical activity in its guidelines on physical activity and sedentary behavior. Physical activity is associated with various health benefits, including reduced all-cause and cardiovascular mortality, prevention of hypertension, site-specific cancers, and type 2 diabetes, as well as improvements in mental health. Similarly, the Japanese Ministry of Health, Labour and Welfare emphasizes the importance of physical activity in its 2023 Physical Activity and Exercise Guidelines for Health Promotion, recommending that adults aim to walk approximately 8,000 steps per day.
In recent years, mobile applications have gained attention as tools to promote behavioral change necessary to increase physical activity in daily life. Furthermore, with rapid advancements in artificial intelligence (AI) technologies, some applications have demonstrated improved health outcomes by providing personalized advice based on AI models. Although some of these applications have been implemented in Japan, limited data are available regarding their effectiveness in increasing step counts.

The aim of this study is to evaluate the effectiveness of AI-generated advice delivered via a mobile application in increasing daily step counts.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Difference in Step Counts Between the AI Advisory Group and the Control Group

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -but assessor(s) are blinded

Control

No treatment

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Other

Interventions/Control_1

An application equipped with an AI advisory function

Interventions/Control_2

An application equipped without an AI advisory function

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

22 years-old <=

Age-upper limit

65 years-old >

Gender

Male and Female

Key inclusion criteria

1.Written informed consent will be obtained from each participant after providing a thorough explanation of the study and ensuring full understanding and voluntary agreement.
2.Participants must be aged 22 years or older and younger than 65 years at the time of consent.
3.Participants must be able to read Japanese.
4.Participants must be able to walk more than 10 steps without using a cane, walker, or wheelchair.
5.Participants must own a device compatible with the iOS operating system.

Key exclusion criteria

1.Individuals whose physical activity has been restricted by a physician will be excluded from the study.
2.Those who have experienced a myocardial infarction or stroke within the past six months will also be excluded.
3.Individuals with a systolic blood pressure of 180 mmHg or higher, or a diastolic blood pressure of 110 mmHg or higher, will not be eligible to participate.
4.Pregnant individuals, as well as those who plan to become pregnant during the study period, will be excluded.
5.In addition, individuals who are deemed unsuitable for participation by the principal investigator or co-investigators for any reason will not be included in the study.

Target sample size

300


Research contact person

Name of lead principal investigator

1st name Yasuhiro
Middle name
Last name Osugi

Organization

Fujita Health University

Division name

Community Based Medicine

Zip code

4701192

Address

1-98 Dengakugakubo, Kutsukake-cho,Toyoake, Aichi 470-1192, JAPAN

TEL

0562932000

Email

yosugi77@fujita-hu.ac.jp


Public contact

Name of contact person

1st name Yuya
Middle name
Last name Yamashita

Organization

Rakuten Group Inc

Division name

Department of Healthcare

Zip code

1580094

Address

1 Chome-14-1 Tamagawa, Setagaya City, Tokyo, JAPAN

TEL

050-5581-6910

Homepage URL


Email

yuya.a.yamashita@rakuten.com


Sponsor or person

Institute

Fujita Health University

Institute

Department

Personal name



Funding Source

Organization

Rakuten Group Inc

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Institutional Review Board of Fujita Health University

Address

1-98 Dengakugakubo, Kutsukake-cho,Toyoake, Aichi 470-1192, JAPAN

Tel

0562-93-2865

Email

f-irb@fujita-hu.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 08 Month 07 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 07 Month 18 Day

Date of IRB

2025 Year 07 Month 18 Day

Anticipated trial start date

2025 Year 08 Month 08 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 07 Day

Last modified on

2025 Year 08 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067144