UMIN-CTR Clinical Trial

Public title

A systematic review of the function of " Corosolic acid derived from banaba " to lower blood glucose level.

Acronym

A systematic review of the function of " Corosolic acid derived from banaba " to lower blood glucose level.

Scientific Title

A systematic review of the function of " Corosolic acid derived from banaba " to lower blood glucose level.(updated version from 2018)

Scientific Title:Acronym

A systematic review of the function of " Corosolic acid derived from banaba " to lower blood glucose level.

Region

Japan

Condition

Healthy volunteers (those who are not suffering from any diseases, excluding those under 18 years old, pregnant women, and lactating women and incuding those with borderline fasting plasma glucose or 2-hour 75g OGTT values).
Borderline: Fasting blood glucose level: 110-125mg/dL or 2-hour value after 75g OGTT: 140-199mg/dL

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO

Narrative objectives1

The objective of this study is to verify whether the function of " Corosolic acid derived from banaba " to lower blood glucose level.

Basic objectives2

Efficacy

Basic objectives -Others

Trial characteristics_1

Others

Trial characteristics_2

Others

Developmental phase

Not applicable

Primary outcomes

Evaluation of blood glucose lowering function (fasting blood glucose level, area under the curve of postprandial blood glucose level (postprandial blood glucose level AUC))

Key secondary outcomes

Study type

Others,meta-analysis etc

Basic design

Randomization

Randomization unit

Blinding

Control

Stratification

Dynamic allocation

Institution consideration

Blocking

Concealment

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

Age-lower limit

18

years-old

<=

Age-upper limit

Not applicable

Gender

Male and Female

Key inclusion criteria

P:
The subjects were healthy volunteers (those who are not suffering from any diseases, excluding those under 18 years old, pregnant women, and lactating women and incuding those with borderline fasting plasma glucose or 2-hour 75g OGTT values)
Borderline: Fasting blood glucose level: 110-125mg/dL or 2-hour value after 75g OGTT: 140-199mg/dL

I:
The intervention condition was defined as the intake of foods containing " Corosolic acid derived from banaba ", with unlimited intake quantities, intake period, and follow-up period.

C:
A comparison was made among one receiving a placebo, another serving as a control group in which food was substituted with food that does not contain' Corosolic acid derived from banaba',and group with no intervention.

O:
Main outcomes: Evaluation of blood glucose lowering function (fasting blood glucose level, area under the curve of postprandial blood glucose level (postprandial blood glucose level AUC))

S:
The research designs used in the literature were randomized parallel group controlled trials (RCTPs), randomized crossover trials (RCTCOs), and quasi-randomized controlled trials (quasi-RCTs). In addition, the languages of presentation were documents written in Japanese and English. As a general rule, the presentation format will be an original paper, and papers in the form of short reports or summaries will also be accepted if the content can be specified. Abstracts of academic conference presentations (conference minutes) were excluded because their descriptive content was considered insufficient. There was no question as to whether or not the journal in which the article was published had been peer-reviewed. To avoid publication bias, we also included studies with results published in clinical trial registry databases. Regarding gray literature, we decided to use doctoral theses, reports from government agencies, think tanks, etc. whose detailed contents could be identified.

Key exclusion criteria

The literature which does not meet the key inclusion criteria will be excluded.

Target sample size

Name of lead principal investigator

1st name	Sachiyuki
Middle name
Last name	Teramoto

Organization

FANCL Corporation

Division name

Functional Food Research Institute

Zip code

244-0806

Address

12-13, Kamishinano, Totsuka-ku, Yokohama, Kanagawa

TEL

045-820-3525

Email

gakujutsu_sdi@fancl.co.jp

Name of contact person

1st name	Masakazu
Middle name
Last name	Katsu

Organization

FANCL Corporation

Division name

Functional Food Research Institute

Zip code

231-8528

Address

89-1, Yamashita-cho, Naka-ku, Yokohama, Kanagawa

TEL

045-226-1392

Homepage URL

Email

gakujutsu_sdi@fancl.co.jp

Institute

FANCL Corporation

Institute

Department

Personal name

Organization

FANCL Corporation

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization

Co-sponsor

Name of secondary funder(s)

Organization

N/A

Address

N/A

Tel

045-226-1392

Email

gakujutsu_sdi@fancl.co.jp

Secondary IDs

NO

Study ID_1

Org. issuing International ID_1

Study ID_2

Org. issuing International ID_2

IND to MHLW

Institutions

Date of disclosure of the study information

2024

Year

10

Month

15

Day

URL releasing protocol

Publication of results

Unpublished

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

Recruitment status

Completed

Date of protocol fixation

2024

Year

10

Month

10

Day

Date of IRB

2024

Year

10

Month

10

Day

Anticipated trial start date

2024

Year

10

Month

15

Day

Last follow-up date

2024

Year

11

Month

29

Day

Date of closure to data entry

Date trial data considered complete

Date analysis concluded

Other related information

[Literature search]Search across 14 databases. The search targets studies published from the time the site was first established or installed up to the date of each search. The search will be conducted by researcher E

[Literature selection and data extraction]Three researchers (A, B, C) will independently screen the literature and extract data based on the eligibility criteria.

[Research quality evaluation]Two researchers (A and B) will independently assess risk of bias and indirectness.

The inconsistency is evaluated as high (-2) when the agreement rate is between 50.0% and 59.9%, medium (-1) when it is between 60.0% and 79.9%, and low(0) when it is between 80.0% and 100%. If the number of reports is only one, set it to high (-2) by default.

[Evaluation of inaccuracy]"Accurate (low (0))" if the total sample size of the target study is 100 or more "Slightly inaccurate (medium (-1))" if the total sample size is 40 or more and less than 100. If it is less than 40,it is evaluated as "inaccurate (high (-2))".

[Meta-analysis]If there are multiple references and no heterogeneity is detected, A and B will conduct a meta-analysis using the free software RevMan5 or EZR. Forest plots will be used to test for heterogeneity, and funnel plots will be employed to clarify publication bias in the synthesis.

Registered date

2024

Year

10

Month

15

Day

Last modified on

2025

Year

07

Month

01

Day

Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000063815