UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000055353
Receipt number R000055647
Scientific Title Effect of Mulberry Lingzhi tea on the inhibition of elevated blood glucose and its safety: Randomized, double-blind, placebo-controlled, crossover comparative study
Date of disclosure of the study information 2024/08/28
Last modified on 2024/08/28 16:29:48

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Basic information

Public title

Effect of Mulberry Lingzhi tea on the inhibition of elevated blood glucose and its safety: a short-term ingestion study

Acronym

Short-term ingestion study of Mulberry Lingzhi tea

Scientific Title

Effect of Mulberry Lingzhi tea on the inhibition of elevated blood glucose and its safety: Randomized, double-blind, placebo-controlled, crossover comparative study

Scientific Title:Acronym

Short-term intake study of Mulberry Lingzhi Tea

Region

Japan


Condition

Condition

Impaired glucose tolerance

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Evaluating the effect of short-term drinking of Mulberry Lingzhi tea on the suppression of elevated blood glucose.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

postprandial blood glucose level during the treatment period

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Cluster

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

3

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Mulberry Lingzhi tea before meals

Interventions/Control_2

Before every meal for 2 weeks

Interventions/Control_3

Continuous measurement using an extracorporeal continuous blood glucose meter

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

69 years-old >=

Gender

Male and Female

Key inclusion criteria

Fasting blood glucose level of at least 110 mg/dL but less than 126 mg/dL
or hemoglobin A1c level is between 6.1% and 6.5%.

Key exclusion criteria

(1) Those whose blood glucose and hemoglobin A1c levels correspond to diabetes (fasting blood glucose level of 126 mg/dL or higher, hemoglobin A1c of 6.5% or higher)
(2) Patients who are on continuous treatment with medication
(3) Consuming medicines, foods for specified health use, functional foods, or health foods that may affect the results of the study.
(4) Persons with a history of serious diseases of the heart, liver, kidney, digestive organs, etc.
(5) Those with anemia (hemoglobin level of 12.5 g/dl or less for men and 11.5 g/dl or less for women)
(6) Those who consume excessive amounts of alcohol (more than 60 g of pure alcohol, which is 3 times the appropriate amount, e.g., more than 1.5 L of beer or more than 3 g of sake).
(7) Shift workers, late-night workers, and others with an irregular rhythm of life.
(8) Persons who are allergic to medicines or food
(9) Pre-menopausal women
(10) Persons with implanted pacemakers
(11) Other subjects deemed unsuitable by the investigator.
(12) Subjects who have requested discontinuation of the study (excluded at any time upon receipt of a written withdrawal of consent).

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Megumi
Middle name
Last name Hara

Organization

Saga University

Division name

Medicine

Zip code

849-8501

Address

Nabeshima 5-1-1

TEL

0952342289

Email

harameg@cc.saga-u.ac.jp


Public contact

Name of contact person

1st name Megumi
Middle name
Last name Hara

Organization

Saga University

Division name

Medicine

Zip code

849-8501

Address

Nabeshima 5-1-1

TEL

0952342289

Homepage URL


Email

harameg@cc.saga-u.ac.jp


Sponsor or person

Institute

Saga University

Institute

Department

Personal name



Funding Source

Organization

Kanzaki City

Organization

Division

Category of Funding Organization

Local Government

Nationality of Funding Organization



Other related organizations

Co-sponsor

Kanzaki city

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Saga University

Address

Nabeshima5-1-1, Saga

Tel

0952342289

Email

harameg@cc.saga-u.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

神埼市役所(佐賀県)


Other administrative information

Date of disclosure of the study information

2024 Year 08 Month 28 Day


Related information

URL releasing protocol


Publication of results

Partially published


Result

URL related to results and publications


Number of participants that the trial has enrolled

31

Results

The Kuwahishi tea group showed less fluctuation in blood glucose levels. There was no significant difference in the incidence of hypoglycemia among the beverages.

Results date posted

2024 Year 08 Month 28 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results

2024 Year 03 Month 31 Day

Baseline Characteristics

31 subjects whose blood glucose and hemoglobin A1c did not correspond to diabetes (<126mg/dL, <6.5%) but were concerned about their blood glucose levels

Participant flow

Citizens were invited to apply to participate.

Adverse events

No adverse events of note

Outcome measures

Inhibition of postprandial blood glucose elevation

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2022 Year 06 Month 14 Day

Date of IRB

2022 Year 08 Month 10 Day

Anticipated trial start date

2022 Year 11 Month 01 Day

Last follow-up date

2023 Year 11 Month 30 Day

Date of closure to data entry

2023 Year 12 Month 31 Day

Date trial data considered complete

2023 Year 12 Month 31 Day

Date analysis concluded

2024 Year 03 Month 31 Day


Other

Other related information



Management information

Registered date

2024 Year 08 Month 28 Day

Last modified on

2024 Year 08 Month 28 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000055647