UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000052685
Receipt number R000060118
Scientific Title Randomized Controlled Trial of an Intervention using Genetic Information and AI Health App for People with Elevated Blood Pressure
Date of disclosure of the study information 2023/12/18
Last modified on 2025/10/19 18:13:12

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Basic information

Public title

Randomized Controlled Trial of an Intervention using Genetic Information and AI Health App for People with Elevated Blood Pressure

Acronym

CALO mama Plus RCT

Scientific Title

Randomized Controlled Trial of an Intervention using Genetic Information and AI Health App for People with Elevated Blood Pressure

Scientific Title:Acronym

CALO mama Plus RCT

Region

Japan


Condition

Condition

Hypertension

Classification by specialty

Cardiology Adult

Classification by malignancy

Others

Genomic information

YES


Objectives

Narrative objectives1

This study aims to examine the effect of sending personalized advice through the AI health app "CALO mama Plus" on diet in individuals with salt-sensitive genotypes and elevated blood pressure.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Salt intake

Key secondary outcomes

Health awareness, systolic and diastolic blood pressure, and body mass index


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Central registration


Intervention

No. of arms

3

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

The intervention group will be notified that they have the salt-sensitive genotype and required to record their daily diet in "CALO mama Plus." In addition, information and quiz on salt reduction will be distributed for the intervention group.

Interventions/Control_2

The control group (1) will receive no intervention.

Interventions/Control_3

The control group (2) will be required to record their daily diet in "CALO mama Plus," but information and quiz on salt reduction will not be distributed. To consider the effect of simply using the app, an auxiliary comparison between the intervention group and control group (2) will be conducted.

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

65 years-old >=

Gender

Male and Female

Key inclusion criteria

- Persons between 20 and 65 years of age
- Those with angiotensinogen gene polymorphism (AGT M235T)
- Those who have an elevated blood pressure (systolic blood pressure 120 or higher, or diastolic blood pressure 80 or higher) in a health checkup during 2022FY or 2023FY
- Those who have not used "CALO mama Plus" before
- Those who submitted urine and responded to the questionnaire before the intervention

Key exclusion criteria

- Pregnant or nursing mothers
- Those who cannot use "CALO mama Plus" because they do not have a smartphone (iPhone or Android)
- Those who cannot understand Japanese
- Consenters whom the investigators deem inappropriate as subjects of the study

Target sample size

311


Research contact person

Name of lead principal investigator

1st name Kosuke
Middle name
Last name Inoue

Organization

Graduate School of Medicine and School of Public Health, Kyoto University

Division name

Department of Social Epidemiology

Zip code

606-8315

Address

Floor 2, Science Frontier Laboratory, Yoshida-Konoecho, Sakyo-ku, Kyoto-shi, Kyoto

TEL

+81-(0)75-753-4355

Email

inoue.kosuke.2j@kyoto-u.ac.jp


Public contact

Name of contact person

1st name Koryu
Middle name
Last name Sato

Organization

Graduate School of Medicine and School of Public Health, Kyoto University

Division name

Department of Social Epidemiology

Zip code

606-8315

Address

Floor 2, Science Frontier Laboratory, Yoshida-Konoecho, Sakyo-ku, Kyoto-shi, Kyoto

TEL

+81-(0)75-753-4355

Homepage URL


Email

sato.koryu.8i@kyoto-u.ac.jp


Sponsor or person

Institute

Kyoto University

Institute

Department

Personal name

Koryu Sato


Funding Source

Organization

Japan Agency for Medical Research and Development

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor

TOSHIBA CORPORATION, Wellmira Inc.

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ethics Committee, Kyoto University Graduate School and Faculty of Medicine

Address

Yoshida-Konoecho, Sakyo-ku, Kyoto-shi, Kyoto

Tel

075-753-4680

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

2023 Year 12 Month 18 Day


Related information

URL releasing protocol

https://cdn.jamanetwork.com/ama/content_public/journal/jamanetworkopen/939703/zoi251034supp1_prod_17

Publication of results

Published


Result

URL related to results and publications

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2840279

Number of participants that the trial has enrolled

312

Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results

2025 Year 10 Month 16 Day

Baseline Characteristics


Participant flow


Adverse events

None.

Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2023 Year 11 Month 01 Day

Date of IRB

2024 Year 01 Month 05 Day

Anticipated trial start date

2024 Year 09 Month 17 Day

Last follow-up date

2024 Year 12 Month 16 Day

Date of closure to data entry

2025 Year 01 Month 31 Day

Date trial data considered complete

2025 Year 02 Month 12 Day

Date analysis concluded

2025 Year 02 Month 14 Day


Other

Other related information



Management information

Registered date

2023 Year 11 Month 02 Day

Last modified on

2025 Year 10 Month 19 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000060118

Research Plan
Registered date File name
2025/04/16 240705_IRB研究計画書_食塩感受性RCT.docx
Research case data specifications
Registered date File name
2025/04/16 Data Description.docx
Research case data
Registered date File name
2025/04/16 share.csv

Single case data URL

Value
https://center6.umin.ac.jp/ice/60118