UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058025
Receipt number R000066224
Scientific Title Clinical Trial on Leucine Requirement in Japanese Adult Men Using the Indicator Amino Acid Oxidation (IAAO) Method
Date of disclosure of the study information 2025/06/01
Last modified on 2025/05/23 14:34:31

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Basic information

Public title

Clinical Trial on Leucine Requirement in Japanese Adult Men Using the Indicator Amino Acid Oxidation (IAAO) Method

Acronym

Clinical Trial on Leucine Requirement in Japanese Adult Men Using the Indicator Amino Acid Oxidation (IAAO) Method

Scientific Title

Clinical Trial on Leucine Requirement in Japanese Adult Men Using the Indicator Amino Acid Oxidation (IAAO) Method

Scientific Title:Acronym

Clinical Trial on Leucine Requirement in Japanese Adult Men Using the Indicator Amino Acid Oxidation (IAAO) Method

Region

Japan


Condition

Condition

Healthy adult male

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the requirement of L-leucine in healthy Japanese adult males.

Basic objectives2

Others

Basic objectives -Others

Amino acid requirement

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Expired rate of CO2 release
13CO2 enrichment in breath
13C phenylalanine enrichment in urine
Resting energy expenditure

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Dose comparison

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

6

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Oral intake of one of the study foods A to G in each period.

Interventions/Control_2

Oral intake of one of the study foods A to G in each period.

Interventions/Control_3

Oral intake of one of the study foods A to G in each period.

Interventions/Control_4

Oral intake of one of the study foods A to G in each period.

Interventions/Control_5

Oral intake of one of the study foods A to G in each period.

Interventions/Control_6

Oral intake of one of the study foods A to G in each period.

Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit

49 years-old >

Gender

Male

Key inclusion criteria

1. Japanese men aged 20 to below 49 years at the time of consent acquisition.
2. Individuals who have a habit of consuming three meals per day.
3. Individuals whose body weight at the screening examination is 70 kg with a tolerance of plus or minus 2.5 kg.
4. Individuals who are able to give informed consent to participate in this study after receiving a detailed explanation of the protocol and understanding its contents.

Key exclusion criteria

1. Individuals who are aware of a weight change of more than 5 kg in the month prior to obtaining consent.
2. Individuals with excessive alcohol intake.
3. Individuals suffering from diseases that affect protein and amino acid metabolism, such as diabetes, cancer, liver disease, kidney disease, HIV, etc.
4. Individuals with previous and/or current medical history of serious diseases in heart, liver, kidney and/or digestive organs.
5. Individuals with allergies to medications and/or food.
6. Individuals who donated blood or component (200 mL) within the last 1 months.
7. Individuals who donated blood (400 mL) within the last 3 months.
8. Individuals who being collected in total of blood (1200 mL) within the last 12 months and in this study.
9. Individuals deemed unsuitable for participation in the trial by the principal investigator or sub-investigator.

Target sample size

6


Research contact person

Name of lead principal investigator

1st name Terutaka
Middle name
Last name Kodama

Organization

The International Council on Amino Acid Science

Division name

Executive managing director

Zip code

100-0003

Address

c/o MAINICHI ACADEMIC FORUN, Inc. Palace side Building 1-1-1 Hitotsubashi, Chiyoda-ku Tokyo

TEL

03-6267-4550

Email

secretariat01@e-icaas.org


Public contact

Name of contact person

1st name Masanori
Middle name
Last name Numa

Organization

CPCC Company Limited

Division name

Clinical Planning Department

Zip code

103-0021

Address

4F Daiwa Building, 3-3-10 Nihonbashi-Hongoku-Cho, Chuo-ku, Tokyo, Japan

TEL

03-6225-9001

Homepage URL


Email

cpcc-contact@cpcc.co.jp


Sponsor or person

Institute

CPCC Company Limited

Institute

Department

Personal name



Funding Source

Organization

The International Council on Amino Acid Science

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

Institutional Review Board of Chiyoda Paramedical Care Clinic

Address

2F Daiwa Building, 3-3-10 Nihonbashi-Hongoku-Cho, Chuo-ku, Tokyo 103-0021, Japan

Tel

03-6225-9005

Email

IRB@cpcc.co.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 06 Month 01 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

2025 Year 05 Month 20 Day

Date of IRB

2025 Year 05 Month 16 Day

Anticipated trial start date

2025 Year 06 Month 02 Day

Last follow-up date

2025 Year 09 Month 08 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 05 Month 30 Day

Last modified on

2025 Year 05 Month 23 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066224