UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000061316
Receipt number R000070020
Scientific Title Glycemic Variability of consuming late-night carbohydrate intake: A Randomized Crossover Study in healthy young women
Date of disclosure of the study information 2026/04/21
Last modified on 2026/04/20 09:58:30

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Basic information

Public title

Glycemic Variability of consuming late-night carbohydrate intake: A Randomized Crossover Study in healthy young women

Acronym

Glycemic Variability of consuming late-night carbohydrate intake

Scientific Title

Glycemic Variability of consuming late-night carbohydrate intake: A Randomized Crossover Study in healthy young women

Scientific Title:Acronym

Glycemic Variability of consuming late-night carbohydrate intake

Region

Japan


Condition

Condition

healthy women

Classification by specialty

Endocrinology and Metabolism Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

We investigate the effects of a divided-meal pattern, vegetables and protein consumed at 18:00, followed by vegetables and carbohydrates at 21:00 on glycemic responses in healthy young women using continuous glucose monitoring.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Others

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

The primary outcome was MAGE.

Key secondary outcomes

The secondary outcome was the IAUC for glucose.


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

No need to know


Intervention

No. of arms

3

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Behavior,custom

Interventions/Control_1

Dinner is administered under three different timing and eating-pattern conditions.
21:00 dinner, in which the entire dinner is consumed at 21:00 in the following order over a 20-minute period: the side dish (vegetables), the main dish (protein-rich food), and rice (carbohydrates);

Interventions/Control_2

Carbohydrate-first divided dinner, in which rice is consumed at 18:00 and the main and side dishes at 21:00

Interventions/Control_3

Carbohydrate-last divided dinner, in which the main and side dishes are consumed at 18:00 and rice at 21:00.

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

25 years-old >=

Gender

Female

Key inclusion criteria

Healthy female undergraduate students at the university are recruited as volunteers. Only individuals who is confirmed not to have diabetes are eligible for inclusion.

Key exclusion criteria

Individuals who are pregnant, suspected of being pregnant, or taking medications known to affect glucose metabolism were excluded.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Saeko
Middle name
Last name Imai

Organization

Kyoto Women's University

Division name

department of Food and Nutrition, Faculity of Home Economics

Zip code

605-8501

Address

35, Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto

TEL

075-531-7128

Email

imais@kyoto-wu.ac.jp


Public contact

Name of contact person

1st name Saeko
Middle name
Last name Imai

Organization

Kyoto Women's University

Division name

Department of Food and Nutrition, Faculity of Home Economics

Zip code

605-8501

Address

35, Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto

TEL

075-531-7128

Homepage URL


Email

imais@kyoto-wu.ac.jp


Sponsor or person

Institute

Kyoto Women's University

Institute

Department

Personal name



Funding Source

Organization

Kyoto Women's University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto Women's University

Address

35, Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto

Tel

075^531-7128

Email

imais@kyoto-wu.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

京都女子大学


Other administrative information

Date of disclosure of the study information

2026 Year 04 Month 21 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

20

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

Enrolling by invitation

Date of protocol fixation

2026 Year 04 Month 17 Day

Date of IRB

2026 Year 03 Month 17 Day

Anticipated trial start date

2026 Year 04 Month 18 Day

Last follow-up date

2026 Year 06 Month 15 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 20 Day

Last modified on

2026 Year 04 Month 20 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000070020