UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000006670
Receipt number R000007878
Scientific Title Seasonal variation of endothelium-dependent flow-mediated vasodilation
Date of disclosure of the study information 2011/11/04
Last modified on 2011/11/04 18:02:48

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Basic information

Public title

Seasonal variation of endothelium-dependent flow-mediated vasodilation

Acronym

Seasonal variation of FMD

Scientific Title

Seasonal variation of endothelium-dependent flow-mediated vasodilation

Scientific Title:Acronym

Seasonal variation of FMD

Region

Japan


Condition

Condition

hypertension, diabetes, hyperlipidemia

Classification by specialty

Medicine in general Cardiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

We try to investigate the climate change on FMD.

Basic objectives2

Others

Basic objectives -Others

Observational study

Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

The change of FMD between warm season and cool season.

Key secondary outcomes



Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


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

40 years-old <=

Age-upper limit

85 years-old >=

Gender

Male and Female

Key inclusion criteria

Patients recruited from outpatients who regularly visited the Miyashita clinic in Shizuoka-city, Shizuoka, Japan because of hypertension, diabetes mellitus and hyperlipidemia.

Key exclusion criteria

Patients with severe illness.

Target sample size

30


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Hiromichi Kumagai

Organization

University of Shizuoka

Division name

Clinical Nutrition

Zip code


Address

52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan

TEL

054-264-5567

Email



Public contact

Name of contact person

1st name
Middle name
Last name Hiromichi Kumagai

Organization

University of Shizuoka

Division name

Clinical Nutrition

Zip code


Address

52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan

TEL

054-264-5567

Homepage URL


Email

kumagai@u-shizuoka-ken.ac.jp


Sponsor or person

Institute

University of Shizuoka

Institute

Department

Personal name



Funding Source

Organization

Global Center of Excellence Program at Japanese Ministry of Education, Culture, Sports, Science and Technology

Organization

Division

Category of Funding Organization

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor

Miyashita Clinic

Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



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

宮下クリニック(静岡県)Miyashita Clinic (Shizuoka)


Other administrative information

Date of disclosure of the study information

2011 Year 11 Month 04 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

FMD was significantly higher in the warm season than in the cool season when the measurements were performed in the same participants and the paired comparison was made.

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

2009 Year 08 Month 30 Day

Date of IRB


Anticipated trial start date

2009 Year 09 Month 01 Day

Last follow-up date

2010 Year 09 Month 01 Day

Date of closure to data entry

2011 Year 10 Month 01 Day

Date trial data considered complete

2011 Year 10 Month 01 Day

Date analysis concluded

2011 Year 10 Month 01 Day


Other

Other related information

Mean resting brachial artery diameter was significantly larger in the warm season than in the cool season. The maximal post-deflation brachial artery diameter was also significantly larger in the warm season than in the cool season. FMD that was calculated from the resting diameter and the maximal diameter was significantly higher in the warm season than in the cool season even if it was expressed as the relative value (%) or absolute value (mm). Twenty-one participants showed an increase of FMD in the warm season, although remained 6 participants exhibited paradoxical changes. No specific characteristics were found in these 6 participants.
The change of FMD value by the seasonal variation was not associated with gender, age, body mass index, smoking and alcohol consumption. There was no association between the seasonal change of FMD and the seasonal change of blood pressure in this study.


Management information

Registered date

2011 Year 11 Month 04 Day

Last modified on

2011 Year 11 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000007878


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name