UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061354
Receipt number R000069496
Scientific Title A Study on the Secretory Dynamics of GLP-1 Following Beverage Consumption
Date of disclosure of the study information 2026/09/01
Last modified on 2026/04/22 19:12:21

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Basic information

Public title

A Study on the Secretory Dynamics of GLP-1 Following Beverage Consumption

Acronym

A Study on the Secretory Dynamics of GLP-1 Following Beverage Consumption

Scientific Title

A Study on the Secretory Dynamics of GLP-1 Following Beverage Consumption

Scientific Title:Acronym

A Study on the Secretory Dynamics of GLP-1 Following Beverage Consumption

Region

Japan


Condition

Condition

Volunteer

Classification by specialty

Endocrinology and Metabolism

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To clarify changes in blood GLP-1 concentration following consumption of functional beverages (matcha beverage, flavonoid-containing beverage, whey protein beverage, green tea catechin beverage, indigestible dextrin-containing beverage).

Basic objectives2

Others

Basic objectives -Others

GLP-1 (glucagon-like peptide-1) is an incretin hormone secreted from the small intestine. It plays a crucial role in blood glucose control by promoting insulin secretion in a glucose-dependent manner and suppressing glucagon secretion. Furthermore, due to its effects of delaying gastric emptying and suppressing appetite, it is attracting attention in diabetes treatment and obesity countermeasures. Recent animal and cell culture studies have demonstrated that various food components influence GLP-1 secretion. Specifically, catechins in green tea, flavonoids in citrus fruits, and whey protein have been suggested to promote GLP-1 secretion.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

iAUC 0-120 min of GLP-1 concentration after each beverage intake

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

5

Purpose of intervention

Diagnosis

Type of intervention

Food

Interventions/Control_1

This study evaluates GLP-1 secretion dynamics after consuming five types of functional beverages in healthy adults.
Each subject will consume the five beverages on separate days, with changes in hormone dynamics (including GLP-1) and blood glucose levels observed before and after consumption. No randomization will be performed; all subjects will consume the five beverages in the same order (Visit 1: Beverage A, Visit 2: Beverage B, Visit 3: Beverage C, Visit 4: Beverage D, Visit 5: Beverage E).

Interventions/Control_2

This study evaluates GLP-1 secretion dynamics after consuming five types of functional beverages in healthy adults.
Each subject will consume the five beverages on separate days, with changes in hormone dynamics (including GLP-1) and blood glucose levels observed before and after consumption. No randomization will be performed; all subjects will consume the five beverages in the same order (Visit 1: Beverage A, Visit 2: Beverage B, Visit 3: Beverage C, Visit 4: Beverage D, Visit 5: Beverage E).

Interventions/Control_3

This study evaluates GLP-1 secretion dynamics after consuming five types of functional beverages in healthy adults.
Each subject will consume the five beverages on separate days, with changes in hormone dynamics (including GLP-1) and blood glucose levels observed before and after consumption. No randomization will be performed; all subjects will consume the five beverages in the same order (Visit 1: Beverage A, Visit 2: Beverage B, Visit 3: Beverage C, Visit 4: Beverage D, Visit 5: Beverage E).

Interventions/Control_4

This study evaluates GLP-1 secretion dynamics after consuming five types of functional beverages in healthy adults.
Each subject will consume the five beverages on separate days, with changes in hormone dynamics (including GLP-1) and blood glucose levels observed before and after consumption. No randomization will be performed; all subjects will consume the five beverages in the same order (Visit 1: Beverage A, Visit 2: Beverage B, Visit 3: Beverage C, Visit 4: Beverage D, Visit 5: Beverage E).

Interventions/Control_5

This study evaluates GLP-1 secretion dynamics after consuming five types of functional beverages in healthy adults.
Each subject will consume the five beverages on separate days, with changes in hormone dynamics (including GLP-1) and blood glucose levels observed before and after consumption. No randomization will be performed; all subjects will consume the five beverages in the same order (Visit 1: Beverage A, Visit 2: Beverage B, Visit 3: Beverage C, Visit 4: Beverage D, Visit 5: Beverage E).

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

65 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Individuals capable of providing written informed consent to participate in the study of their own free will
2. Age: 18 years or older and 65 years or younger
3. Individuals capable of understanding the content of this study and adhering to the trial schedule

Key exclusion criteria

1. Individuals with severe heart disease, liver disease, kidney disease, or endocrine disorders
2. Individuals with a history of or currently undergoing treatment for gastrointestinal disorders (e.g., inflammatory bowel disease, irritable bowel syndrome)
3. Individuals allergic to dairy products, soy, or tea
4. Women who are pregnant, may be pregnant, or are breastfeeding
5. Individuals with a history of anemia or currently undergoing treatment for anemia
6. Individuals with sensitivity to caffeine
7. Individuals deemed unsuitable by their primary physician or the principal investigator

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Michiaki
Middle name
Last name Fukui

Organization

Kyoto Prefectural University of Medicine

Division name

Department of Endoclinology and Metabolism

Zip code

602-8566

Address

465, Kajii-cho, Kamigyo-ku

TEL

0752515506

Email

mhama@koto.kpu-m.ac.jp


Public contact

Name of contact person

1st name Masahide
Middle name
Last name Hamaguchi

Organization

Kyoto Prefectural University of medicine

Division name

Department of Endoclinology and Metabolism

Zip code

6028566

Address

465, Kajii-cho, Kamigyo-ku

TEL

0752515506

Homepage URL


Email

mhama@koto.kpu-m.ac.jp


Sponsor or person

Institute

Kyoto Prefectural University of Medicine

Institute

Department

Personal name

Masahide Hamaguchi


Funding Source

Organization

Oishii Kenko Inc

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto Prefectural University of medicine

Address

465, Kajii-cho, Kamigyo-ku

Tel

0752515506

Email

mhama@koto.kpu-m.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

京都府


Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 09 Month 01 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

2026 Year 04 Month 22 Day

Date of IRB


Anticipated trial start date

2026 Year 06 Month 01 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 04 Month 22 Day

Last modified on

2026 Year 04 Month 22 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000069496