UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000062038
Receipt number R000070920
Scientific Title The Effect of Ingestion of Ginkgo Biloba-derived Flavonoid Glycosides and Terpene Lactones on Cognitive Function: A Systematic Review.
Date of disclosure of the study information 2026/06/25
Last modified on 2026/06/24 09:55:49

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Basic information

Public title

The Effect of Ingestion of Ginkgo Biloba-derived Flavonoid Glycosides and Terpene Lactones on Cognitive Function: A Systematic Review.

Acronym

Effect of Ginkgo Biloba-derived Flavonoid Glycosides and Terpene Lactones on Cognitive Function: A Systematic Review.

Scientific Title

The Effect of Ingestion of Ginkgo Biloba-derived Flavonoid Glycosides and Terpene Lactones on Cognitive Function: A Systematic Review.

Scientific Title:Acronym

Effect of Ginkgo Biloba-derived Flavonoid Glycosides and Terpene Lactones on Cognitive Function: A Systematic Review.

Region

Japan


Condition

Condition

Healthy adults aged 40 years or older.

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the effects of Ginkgo biloba-derived flavonoid glycosides and terpene lactones intake on cognitive function.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Cognitive function (memory and judgment accuracy)

Key secondary outcomes



Base

Study type

Others,meta-analysis etc


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


Not applicable

Gender

Male and Female

Key inclusion criteria

Healthy adults aged 40 and older with no diagnosed diseases.

Key exclusion criteria

Individuals with diseases, pregnant women (including those planning to become pregnant), and lactating women.

Target sample size



Research contact person

Name of lead principal investigator

1st name Toshiharu
Middle name
Last name Miyai

Organization

Yamada Bee Company, Inc.

Division name

Dietary Supplement Development Section.

Zip code

708-0393

Address

194 Ichiba, Kagamino-cho, Tomata-gun, Okayama, Japan.

TEL

0868-54-5138

Email

tm1614@yamada-bee.com


Public contact

Name of contact person

1st name Aika
Middle name
Last name Ohnishi

Organization

Yamada Bee Company, Inc.

Division name

Dietary Supplement Development Section.

Zip code

708-0393

Address

194 Ichiba, Kagamino-cho, Tomata-gun, Okayama, Japan.

TEL

0868-54-5138

Homepage URL


Email

ao2179@yamada-bee.com


Sponsor or person

Institute

Yakujihou Marketing Jimusho Co., Ltd.

Institute

Department

Personal name



Funding Source

Organization

Yamada Bee Company, Inc.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

N/A

Address

N/A

Tel

0868-54-5138

Email

ao2179@yamada-bee.com


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

2026 Year 06 Month 25 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

Preinitiation

Date of protocol fixation

2026 Year 06 Month 19 Day

Date of IRB


Anticipated trial start date

2026 Year 06 Month 26 Day

Last follow-up date

2026 Year 08 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This research review will be conducted in accordance with PRISMA 2020.


Management information

Registered date

2026 Year 06 Month 24 Day

Last modified on

2026 Year 06 Month 24 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000070920