UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059713
Receipt number R000067132
Scientific Title Human safety test of Macaranga tanarius fruit extract
Date of disclosure of the study information 2025/11/10
Last modified on 2025/11/10 09:53:25

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Basic information

Public title

Human safety test of Macaranga tanarius fruit extract

Acronym

Human safety test of Macaranga tanarius fruit extract

Scientific Title

Human safety test of Macaranga tanarius fruit extract

Scientific Title:Acronym

Human safety test of Macaranga tanarius fruit extract

Region

Japan


Condition

Condition

healthy adult

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Macaranga tanarius (scientific name: Macaranga tanarius) grows wild south of the Ryukyu Islands. The prenylflavonoids contained in Macaranga tanarius exhibit strong antibacterial and antioxidant properties, and have been reported to have antibacterial, anti-inflammatory, antioxidant, anti-cancer properties, promote glucose uptake in skeletal muscle cells, and promote tooth germ formation.
Furthermore, Macaranga tanarius fruit ethanol extract has been shown to suppress weight gain and blood sugar levels in obese and diabetic model mice. Safety tests showed no safety issues when administered to rats and mice at 2g/kg of Macaranga tanarius fruit extract (test product). Thus, if Macaranga tanarius fruit extract is commercialized, it is expected to promote health through its anti-inflammatory, blood sugar-lowering, and anti-obesity properties. Therefore, in this study, we first conducted human safety tests.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

General blood tests and blood biochemistry tests

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

The test product will be a No. 2 hard capsule (made of hydroxypropyl methylcellulose) containing 100 mg of Macaranga tanarius fruit extract.
The administration period will generally be four weeks, and the drug will be taken once daily in the morning.

Interventions/Control_2

The placebo will be a No. 2 hard capsule containing dextrin.
The administration period will generally be four weeks, and the drug will be taken once daily in the morning.

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

65 years-old >=

Gender

Male and Female

Key inclusion criteria

Basically, healthy men and women aged 20 to 65

Key exclusion criteria

Participants who meet any of the following criteria will be excluded.
1) Participants currently receiving treatment for or have a history of malignant tumors, heart failure, or myocardial infarction.
2) Participants with a pacemaker or implantable cardioverter-defibrillator.
3) Participants currently receiving treatment for the following chronic diseases: arrhythmia, liver damage, chronic kidney disease, cerebrovascular disease, rheumatic disease, diabetes,
dyslipidemia, hypertension, cardiovascular disease, and other chronic diseases.
4) Participants currently taking foods for specified health uses or foods with functional claims.
5) Participants currently taking or using medicines (including herbal medicines) or supplements.
6) Participants with allergies (to medicines or foods related to the test food).
7) Participants currently pregnant, breastfeeding, or intending to become pregnant during the study period.
8) Participants who have participated in other clinical trials within the 28 days prior to the consent acquisition date,
or who plan to participate in such trials during the study period.
9) Participants deemed inappropriate for this study by the investigator.

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Kimio
Middle name
Last name Sugaya

Organization

Southen Knights' Laboratory Co., Ltd.

Division name

Representative Director

Zip code

904-0113

Address

823 Arture Mihama, 1-1 Miyagi, Chatan, Okinawa, Japan

TEL

09049987459

Email

sugaya0822@yahoo.co.jp


Public contact

Name of contact person

1st name Kimio
Middle name
Last name Sugaya

Organization

Southen Knights' Laboratory Co., Ltd.

Division name

Representative Director

Zip code

904-0113

Address

823 Arture Mihama, 1-1 Miyagi, Chatan, Okinawa, Japan

TEL

09049987459

Homepage URL


Email

sugaya0822@yahoo.co.jp


Sponsor or person

Institute

Southen Knights' Laboratory Co., Ltd.

Institute

Department

Personal name

Kimio Sugaya


Funding Source

Organization

Natu Pharma Ryukyu Co., Ltd.

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Sendan Medical Corporation Kitakami Central Hospital Ethics Committee

Address

631-9 Kamisedo, Chatan, Okinawa, Japan

Tel

0989365111

Email

kitakami@ryucom.ne.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

2025 Year 11 Month 10 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

30

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

Completed

Date of protocol fixation

2025 Year 06 Month 10 Day

Date of IRB

2025 Year 08 Month 05 Day

Anticipated trial start date

2025 Year 09 Month 08 Day

Last follow-up date

2025 Year 11 Month 05 Day

Date of closure to data entry

2025 Year 11 Month 10 Day

Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 11 Month 10 Day

Last modified on

2025 Year 11 Month 10 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067132