UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000046336
Receipt number R000052727
Scientific Title Effects of postprandial hyperglycemia on vascular endothelial function and pressor response to static handgrip exercise
Date of disclosure of the study information 2021/12/20
Last modified on 2023/06/12 12:22:09

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Basic information

Public title

Effects of postprandial hyperglycemia on vascular endothelial function and pressor response to static handgrip exercise

Acronym

Effects of postprandial hyperglycemia on vascular endothelial function and pressor response to static handgrip exercise

Scientific Title

Effects of postprandial hyperglycemia on vascular endothelial function and pressor response to static handgrip exercise

Scientific Title:Acronym

Effects of postprandial hyperglycemia on vascular endothelial function and pressor response to static handgrip exercise

Region

Japan


Condition

Condition

Healthy adults

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Postprandial hyperglycemia/hyperinsulinemia acutely impairs vascular endothelial function (VEF) and exaggerates sympathetic activation, which may augment the pressor response to static handgrip exercise (HG-ex). The purpose of this study was to examine the effects of postprandial hyperglycemia and hyperinsulinemia on VEF in brachial artery and mean arterial pressure (MAP) responses to HG-ex.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Explanatory

Developmental phase

Not applicable


Assessment

Primary outcomes

endothelial function, pressor response to static handgrip exercise

Key secondary outcomes

blood glucose, plasma insulin, blood pressure, heart rate


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -participants are blinded

Control

Dose comparison

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

3

Purpose of intervention

Prevention

Type of intervention

Food Other

Interventions/Control_1

Participants consume a high glycemic index breakfast meal at 8:30-9:00, and subsequently rest for 3 hours. Before (baseline) and 1 and 3 hours after consumption of breakfast meal, vascular endothelial function in brachial artery is evaluated using flow mediated dilation (FMD) method by ultrasonography. FMD is calculated as percent change of diameter (%FMD), which is normalized to shear rate area under the curve (AUC) from cuff release to peak dilation (%FMDSRauc). Subsequently, participants perform 30% maximal voluntary contraction static handgrip exercise, followed by postexercise ischemia (PEMI). Blood glucose and plasma insulin levels are measured every 15 or 30 min after consumption of meal and each of area under the curve (AUC) is calculated.

Interventions/Control_2

Participants consume a low glycemic index breakfast meal at 8:30-9:00, and subsequently rest for 3 hours. Before (baseline) and 1 and 3 hours after consumption of breakfast meal, vascular endothelial function in brachial artery is evaluated using flow mediated dilation (FMD) method by ultrasonography. FMD is calculated as percent change of diameter (%FMD), which is normalized to shear rate area under the curve (AUC) from cuff release to peak dilation (%FMDSRauc). Subsequently, participants perform 30% maximal voluntary contraction static handgrip exercise, followed by postexercise ischemia (PEMI). Blood glucose and plasma insulin levels are measured every 15 or 30 min after consumption of meal and each of area under the curve (AUC) is calculated.

Interventions/Control_3

Participants skip a breakfast meal at 8:30-9:00, and subsequently rest for 3 hours. Before (baseline) and 1 and 3 hours after consumption of breakfast meal, vascular endothelial function in brachial artery is evaluated using flow mediated dilation (FMD) method by ultrasonography. FMD is calculated as percent change of diameter (%FMD), which is normalized to shear rate area under the curve (AUC) from cuff release to peak dilation (%FMDSRauc). Subsequently, participants perform 30% maximal voluntary contraction static handgrip exercise, followed by postexercise ischemia (PEMI). Blood glucose and plasma insulin levels are measured every 15 or 30 min after consumption of meal and each of area under the curve (AUC) is calculated.

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

59 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Age between 20 and 59 years old
2. Not taking any medications and dietary supplements
3. No medical and surgical diseases
4. No smoker
5. A participant who not performed weight changes plus or minus 3 kg in the past three months and who has no intention to weight loss during the study
6. Must not be the participant of others research within the research period (confirm by asking the participants directly and orally when explaining the research content)
7. A participant who can consume the test meal in the study
8. A participant whose menstrual cycle is normal

Key exclusion criteria

1. Not age between 20 and 59 years old
2. A participant who takes medications and dietary supplements
3. A participant who has medical and surgical diseases
4. Smoker
5. A participant who performed weight changes plus or minus 3 kg in the past three months and who has an intention to weight loss during the study
6. A participant who are scheduled to participate to others research.
7. A participant who cannot consume the test meal in the study
8. A participant who is pregnant, suspected of being pregnant, and within 1 year of parturition

Target sample size

15


Research contact person

Name of lead principal investigator

1st name Hideaki
Middle name
Last name Kashima

Organization

Prefectural University of Hiroshima

Division name

Faculty of Health Sciences

Zip code

734-8558

Address

1-1-71 Ujina-higashi, Minami-ku, Hiroshima

TEL

0822519806

Email

h-kashima@pu-hiroshima.ac.jp


Public contact

Name of contact person

1st name Hideaki
Middle name
Last name Kashima

Organization

Prefectural University of Hiroshima

Division name

Faculty of Health Sciences

Zip code

734-8558

Address

1-1-71 Ujina-higashi, Minami-ku, Hiroshima

TEL

0822519806

Homepage URL


Email

h-kashima@pu-hiroshima.ac.jp


Sponsor or person

Institute

Prefectural University of Hiroshima

Institute

Department

Personal name



Funding Source

Organization

Japan Society for the Promotion of Science KAKENHI

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Prefectural University of Hiroshima

Address

1-1-71 Ujina-higashi, Minami-ku, Hiroshima

Tel

0822519534

Email

kikaku2@pu-hiroshima.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

2021 Year 12 Month 20 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

15

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

Completed

Date of protocol fixation

2021 Year 03 Month 22 Day

Date of IRB

2021 Year 03 Month 22 Day

Anticipated trial start date

2021 Year 12 Month 20 Day

Last follow-up date

2023 Year 03 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded

2022 Year 06 Month 30 Day


Other

Other related information



Management information

Registered date

2021 Year 12 Month 09 Day

Last modified on

2023 Year 06 Month 12 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000052727