UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000045060
Receipt number R000051476
Scientific Title Prevention of acute upper respiratory tract inflammation by green tea gargling: concentration-dependent effects in a randomized controlled trial
Date of disclosure of the study information 2021/08/05
Last modified on 2022/08/26 16:51:09

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Basic information

Public title

Prevention of acute upper respiratory tract inflammation by green tea gargling: concentration-dependent effects

Acronym

Prevention of acute upper respiratory tract inflammation by green tea gargling

Scientific Title

Prevention of acute upper respiratory tract inflammation by green tea gargling: concentration-dependent effects in a randomized controlled trial

Scientific Title:Acronym

Prevention of acute upper respiratory tract inflammation by green tea gargling

Region

Japan


Condition

Condition

Acute upper respiratory tract inflammation

Classification by specialty

Medicine in general

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the concentration dependent effects of green tea gargling on the incidence of acute upper respiratory tract inflammation

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

1 The occurrence of acute upper respiratory tract inflammation.

Key secondary outcomes

1 The occurrence of influenza
2 The occurrence of SARS COVID-2
3 Term from when clinical trial starts to when acute upper respiratory tract inflammation occurs
4 Severity of symptoms
5 Number of occurrences
6 Complication such as pneumonia and encephalopathy or hospitalization
7 Adverse events


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Placebo

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is considered as a block.

Blocking

YES

Concealment

Central registration


Intervention

No. of arms

3

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

12 weeks,
Active drink, green tea including high catechin concentration
three times a day

Interventions/Control_2

12 weeks,
Active drink, green tea including low catechin concentration,
three times a day

Interventions/Control_3

12 weeks,
Control-drink, water
three times a day

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

15 years-old <=

Age-upper limit

75 years-old >

Gender

Male and Female

Key inclusion criteria

(1) Men and women, high school/university students
(2) Able to give written informed consent
(3) Able to gargle and
to write questionnaire

Key exclusion criteria

(1) Potentially having the allergy to green tea
(2) Having severe systemic chronic infectious diseases
(3) Subjects diagnosed by physicians inappropriate to participate in the study

Target sample size

405


Research contact person

Name of lead principal investigator

1st name Hiroshi
Middle name
Last name Yamada

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

+81-54-264-5762

Email

hyamada@u-shizuoka-ken.ac.jp


Public contact

Name of contact person

1st name Hiroshi
Middle name
Last name Yamada

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

+81-54-264-5762

Homepage URL

http://u-shizuoka-ken.ac.jp

Email

hyamada@u-shizuoka-ken.ac.jp


Sponsor or person

Institute

Department of Drug Evaluation and Information Graduate School of Pharmaceutical Science, University of Shizuoka

Institute

Department

Personal name



Funding Source

Organization

Japan Society for the promotion of science

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor

Laboratory of Animal Physiology, School of Agriculture, Meiji University

Name of secondary funder(s)



IRB Contact (For public release)

Organization

the Ethics Committee of the University of Shizuoka

Address

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

Tel

054-264-5103

Email

rinri@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

静岡県立大学(静岡県)、明治大学(神奈川県)


Other administrative information

Date of disclosure of the study information

2021 Year 08 Month 05 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

209

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

No longer recruiting

Date of protocol fixation

2021 Year 06 Month 14 Day

Date of IRB

2021 Year 08 Month 05 Day

Anticipated trial start date

2021 Year 08 Month 20 Day

Last follow-up date

2022 Year 02 Month 28 Day

Date of closure to data entry

2022 Year 03 Month 31 Day

Date trial data considered complete

2022 Year 05 Month 20 Day

Date analysis concluded



Other

Other related information



Management information

Registered date

2021 Year 08 Month 04 Day

Last modified on

2022 Year 08 Month 26 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000051476


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name