UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000009465
Receipt number R000011065
Scientific Title Cross-over study of eating snacks at different timing on glycemic excursions assessed by continuous glucose monitoring system (CGMS) in patients with and without type 2 diabetes
Date of disclosure of the study information 2012/12/03
Last modified on 2019/06/10 14:09:09

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Basic information

Public title

Cross-over study of eating snacks at different timing on glycemic excursions assessed by continuous glucose monitoring system (CGMS) in patients with and without type 2 diabetes

Acronym

Cross-over study of eating snacks at different timing on glycemic excursions assessed by CGMS

Scientific Title

Cross-over study of eating snacks at different timing on glycemic excursions assessed by continuous glucose monitoring system (CGMS) in patients with and without type 2 diabetes

Scientific Title:Acronym

Cross-over study of eating snacks at different timing on glycemic excursions assessed by CGMS

Region

Japan


Condition

Condition

Type 2 diabetes

Classification by specialty

Endocrinology and Metabolism

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The objective of the study is to determine whether the timing of eating snacks at varying timing differ glycemic excursions in people with and without type 2 diabetes.

Basic objectives2

Others

Basic objectives -Others

The objective of the study is to determine whether the timing of eating snacks at varying timing differ glycemic excursions in outpatients with and without type 2 diabetes.

Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Daily glucose excursions; mean glucose, glucose standard diviaion, mean amplitude of glycemic excursions (MAGE), largest amplitude of glycemic excursions (LAGE).

Key secondary outcomes

Postaprandial plasma glucose, incremental area under the curve (IAUC)


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification

NO

Dynamic allocation

YES

Institution consideration


Blocking


Concealment

Pseudo-randomization


Intervention

No. of arms

3

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Behavior,custom

Interventions/Control_1

All participants are assigned to perform CGM for 6 days by eating snacks after lunch or dinner or between lunch and dinner in a randomized cross-over design. At 12:00 of the first day, each participant wears a CGM at clinic, and the 2nd to the 4th day they consume the test meals at 7:00, 12:00, and 19:00 at home, and at noon of the 6th day a CGM is removed at clinic. At least four daily SMBG measurements are obtained with a gluco-meter and enter into the CGM for calibration. CGM data are downloaded using the software and saved electrically. All subjects receive dietary instructions from the dietitians. All participants are not permitted eating besides test meals, alcohol consumption, and intensive physical activities during the study period. The test meals consist of rice/bread, meat/fish, 500 g of vegetables, milk and energy ratios are 58 % from carbohydrates, 17% from proteins and 25% from fat. The subjects eat the first dish of vegetables for 5 min, then the main dishes (frozen foods) for 5 min, and consume rice or bread for 5 min with a 10-min interval between vegetables and carbohydrates in each meal.
Snacks are consumed in the different time on 3 days (2nd to 4th day). All participants consume the snack after lunch.

Interventions/Control_2

All participants consume the identical test meals and consume the snack between lunch and dinner.

Interventions/Control_3

All participants wihout type 2 diabetes consume the identical test meals and consume the snack after dinner.

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

90 years-old >

Gender

Male and Female

Key inclusion criteria

Consecutive adult patients with type 2 diabetes are recruited among outpatients regularly attending diabetes clinic, Kajiyama Clinic located in Kyoto, Japan. All patients had type 2 diabetes as defined by Word Health Organization criteria, and HbA1c less than 9%. Healthy adults without type 2 diabetes are recruited.

Key exclusion criteria

Patients who have liver disease, any life-threatening disease, severe complications of diabetes, nephropathy, history of cerebral or myocardial infarction, and treatment with steroidal anti-inflammatory drugs, and drug or alcohol abuse are excluded.

Target sample size

30


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, Faculty of Home Economics

Zip code

605-8501

Address

35, Imakumano, Kitahiyoshi-cho, Higashiyama-ku, Kyoto 605-8501

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, Faculty of Home Economics

Zip code

605-8501

Address

35, Imakumano, Kitahiyoshi-cho, Higashiyama-ku, Kyoto 605-8501

TEL

075-531-7128

Homepage URL


Email

imais@kyoto-wu.ac.jp


Sponsor or person

Institute

Department of Food and Nutrition, Kyoto Women's University

Institute

Department

Personal name



Funding Source

Organization

Grant-in Aid for Scientific Research from the Ministry of Education, Science, and Culuture

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor

Kajiyama Clinic, Kyoto, Japan

Name of secondary funder(s)

Kajiyama Clinic, Kyoto, Japan


IRB Contact (For public release)

Organization

Kyoto women's University

Address

35, Imakumano Kitahiyoshi-cho, 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

梶山内科クリニック (京都市)(Kajiyama Clinic, Kyoto, Japan)


Other administrative information

Date of disclosure of the study information

2012 Year 12 Month 03 Day


Related information

URL releasing protocol

https://upload.umin.ac.jp/cgi-bin/icdr/ctr_view_reg.cgi?recptno=R000011065

Publication of results

Published


Result

URL related to results and publications

https://www.sciencedirect.com/science/article/abs/pii/S1262363618301228?via%3Dihub

Number of participants that the trial has enrolled

39

Results

This study demonstrated that consuming snacks at post-dinner affects the postprandial glucose levels even in the following post-breakfast. On the other hand, consuming snacks at mid-afternoon could be a successful strategy for reduction of glucose excursions in healthy women. Consuming snacks well separated from lunch may be an effective way to suppress postprandial glucose levels in both people with and without type 2 diabetes.

Results date posted

2019 Year 06 Month 10 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results

2018 Year 09 Month 01 Day

Baseline Characteristics

Seventeen people with type 2 diabetes: age 67.4 years, BMI 23.5, HbA1c 7.2%. Seventeen healthy women: 21.2 years, BMI 20.7, HbA1c 5.1% (mean).

Participant flow

Twenty volunteers with type 2 diabetes were enrolled in the study, but 3 were excluded due to discontinuation of the study protocol. Ninteen healthy volunteers enrolled in the study, but 2 were excluded becaause of non-adherence to the study protocol.

Adverse events

none

Outcome measures

mean blood glucose, standard deviation of blood glucose, mean amplitude of glycemic excursions, incremental area under the glucose curve

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Main results already published

Date of protocol fixation

2012 Year 11 Month 20 Day

Date of IRB

2011 Year 07 Month 25 Day

Anticipated trial start date

2012 Year 12 Month 17 Day

Last follow-up date

2017 Year 12 Month 20 Day

Date of closure to data entry

2017 Year 12 Month 31 Day

Date trial data considered complete

2018 Year 01 Month 31 Day

Date analysis concluded

2018 Year 02 Month 20 Day


Other

Other related information



Management information

Registered date

2012 Year 12 Month 03 Day

Last modified on

2019 Year 06 Month 10 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000011065


Research Plan
Registered date File name
2021/11/22 間食論文糖尿病患者.pdf

Research case data specifications
Registered date File name
2020/04/02 間食健常者Diabetes & Metabolism.pdf

Research case data
Registered date File name