UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000046109
Receipt number R000052588
Scientific Title Clinical study on the effects of green tea components on sleep and stress
Date of disclosure of the study information 2021/11/18
Last modified on 2021/11/18 15:18:44

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

Clinical study on the effects of green tea components on sleep and stress

Acronym

Clinical study on the effects of green tea components on sleep and stress

Scientific Title

Clinical study on the effects of green tea components on sleep and stress

Scientific Title:Acronym

Clinical study on the effects of green tea components on sleep and stress

Region

Japan


Condition

Condition

Healthy person

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the effects of different ratios of caffeine, epigallocatechin gallate, theanine and arginine in green tea on stress reduction and sleep.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Brain waves in sleep

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

General green tea.

Interventions/Control_2

Green tea including low caffeine.

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

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

(1)Being at least 20 years old when obtaining informed consent
(2)Able to take green tea
(3)Able to collect saliva
(4)Able to collect information by a wearable activity tracker (wristwatch style)
(5)Obtained written informed consent from subjects

Key exclusion criteria

(1)Subjects taking drugs that affect sleep such as stimulants (diethylpropion, epinephrine), sleep inducing drug and antianxiety drugs (etizolam, diazepam)
(2)Subjects who take beverages containing caffein or theanine such as green tea, coffee, coke and energy drink from Monday to Friday during the study
(3)Subjects diagnosed by physicians inappropriate to participate in the study

Target sample size

80


Research contact person

Name of lead principal investigator

1st name Daisuke
Middle name
Last name Furushima

Organization

University of Shizuoka

Division name

School of Pharmaceutical Sciences

Zip code

422-8526

Address

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

TEL

0542645102

Email

dfuru@u-shizuoka-ken.ac.jp


Public contact

Name of contact person

1st name Daisuke
Middle name
Last name Furushima

Organization

University of Shizuoka

Division name

School of Pharmaceutical Sciences

Zip code

422-8526

Address

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

TEL

0542645102

Homepage URL


Email

dfuru@u-shizuoka-ken.ac.jp


Sponsor or person

Institute

University of Shizuoka

Institute

Department

Personal name



Funding Source

Organization

University of Shizuoka

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

University of Shizuoka

Address

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

Tel

0542645102

Email

dfuru@u-shizuoka-ken.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 11 Month 18 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

Enrolling by invitation

Date of protocol fixation

2021 Year 10 Month 15 Day

Date of IRB

2021 Year 10 Month 15 Day

Anticipated trial start date

2021 Year 11 Month 15 Day

Last follow-up date

2021 Year 12 Month 28 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2021 Year 11 Month 18 Day

Last modified on

2021 Year 11 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000052588