UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000062229
Receipt number R000071184
Scientific Title Exploratory study on long-term yogurt ingestion and glycemic variability in local residents of Fukui Prefecture: A non-ingestion controlled randomized trial using FreeStyle Libre 2
Date of disclosure of the study information 2026/07/14
Last modified on 2026/07/14 10:26:08

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Basic information

Public title

Exploratory study on long-term yogurt ingestion and glycemic variability in local residents of Fukui Prefecture

Acronym

Study on the effects of long-term yogurt ingestion on glycemic variability in local residents of Fukui Prefecture

Scientific Title

Exploratory study on long-term yogurt ingestion and glycemic variability in local residents of Fukui Prefecture: A non-ingestion controlled randomized trial using FreeStyle Libre 2

Scientific Title:Acronym

Study on the effects of long-term yogurt ingestion on glycemic variability in local residents

Region

Japan


Condition

Condition

Prediabetes (Individuals at high risk for type 2 diabetes)

Classification by specialty

Endocrinology and Metabolism

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study aims to exploratorily evaluate the suppressive effect of long-term (12-week) ingestion of yogurt containing MI-2 lactic acid bacteria on postprandial glucose spikes in local residents with prediabetes who are at high risk for type 2 diabetes. Utilizing the FreeStyle Libre 2 system and a dietary management app (glucose flight), we will clarify the detailed changes in glycemic dynamics.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Glycemic variability from screening/baseline (-2 weeks) to V3 (12 weeks) measured by FreeStyle Libre 2 indices (Mean Glucose, Standard Deviation, AC_Var).

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

Intake of yogurt for 12 weeks

Interventions/Control_2

No treatment

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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1. Japanese men and women aged 18 years or older.
2. Individuals with an HbA1c level between 5.6% and 6.4% within one year prior to obtaining informed consent.
3. Residents of Fukui Prefecture or neighboring areas who can regularly visit the designated medical institution.
4. Individuals who own a smartphone and can appropriately install and operate the designated apps (glucose flight, LibreLink, etc.) and record/take photos of meals.

Key exclusion criteria

1. Individuals already diagnosed with diabetes and using diabetes medications (oral hypoglycemic agents, GLP-1 receptor agonists, insulin, etc.).
2. Individuals who regularly consume health foods, supplements, Foods for Specified Health Uses (FOSHU), or Foods with Function Claims that claim to lower or maintain blood glucose levels and who are unable to discontinue their use during the study period (from screening to the end of the study).
3. Women who are pregnant, lactating, or may be pregnant.
4. Patients with severe hepatic or renal disease.
5. Individuals with a milk allergy, a history of lactose intolerance, or otherwise considered unsuitable for yogurt consumption.
6. Individuals who plan to remove the FreeStyle Libre 2 sensor during the study period (e.g., for health checkups), or who are judged to have difficulty maintaining compliance during the study period.
7. Others judged inappropriate by the principal investigator.

Target sample size

300


Research contact person

Name of lead principal investigator

1st name Atsushi
Middle name
Last name Masuyama

Organization

THE PHAGE, Inc.

Division name

NA

Zip code

150-0002

Address

VEIL SHIBUYA 2F, 2-16-8 Shibuya, Shibuya-ku, Tokyo 150-0002, Japan

TEL

03-4500-1654

Email

masuyama@thephage.life


Public contact

Name of contact person

1st name Kosuke
Middle name
Last name Iwasa

Organization

THE PHAGE, Inc.

Division name

NA

Zip code

150-0002

Address

VEIL SHIBUYA 2F, 2-16-8 Shibuya, Shibuya-ku, Tokyo 150-0002, Japan

TEL

03-4500-1654

Homepage URL


Email

kosuke.iwasa@thephage.life


Sponsor or person

Institute

THE PHAGE, Inc.

Institute

Department

Personal name



Funding Source

Organization

Meiji Co., Ltd.

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

THE PHAGE, Inc. Ethics Committee

Address

VEIL SHIBUYA 2F, 2-16-8 Shibuya, Shibuya-ku, Tokyo

Tel

070-4813-6517

Email

kotaro.fujino@thephage.life


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

2026 Year 07 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

Open public recruiting

Date of protocol fixation

2026 Year 06 Month 25 Day

Date of IRB

2026 Year 07 Month 05 Day

Anticipated trial start date

2026 Year 07 Month 13 Day

Last follow-up date

2027 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

2026 Year 07 Month 14 Day

Last modified on

2026 Year 07 Month 14 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071184