UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059351
Receipt number R000067880
Scientific Title Effect of Imidazole Dipeptide Supplementation on Lipid Metabolism During Aerobic Exercise
Date of disclosure of the study information 2025/10/09
Last modified on 2025/10/09 11:04:36

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Basic information

Public title

Effect of Imidazole Dipeptide Supplementation on Lipid Metabolism During Aerobic Exercise

Acronym

Effect of Imidazole Dipeptide Supplementation on Lipid Metabolism During Aerobic Exercise in Collegiate Rugby Players

Scientific Title

Effect of Imidazole Dipeptide Supplementation on Lipid Metabolism During Aerobic Exercise

Scientific Title:Acronym

Effect of Imidazole Dipeptide Supplementation on Lipid Metabolism During Exercise

Region

Japan


Condition

Condition

healthy individuals

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The study examines the effects of four-week continuous imidazole dipeptide intake on lipid metabolism during aerobic exercise and on changes in oxidative stress markers before and after exercise in male university students who belong to the university rugby club.

Basic objectives2

Others

Basic objectives -Others

The study is designed as a double-blind, controlled trial. Prior to the intervention, participants will undergo measurement of maximal oxygen uptake (VO2max). Before and after imidazole dipeptide supplementation, a 40-minute cycling exercise at 65% VO2max will be performed. During exercise, respiratory gas parameters and heart rate will be continuously monitored to evaluate changes in lipid metabolism. Body composition, and oxidative stress markers in venous blood samples also will be measuredbefore and after exercise.

Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

lipid metabolism

Key secondary outcomes

body composition, oxidative stress markers


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

No need to know


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

Participants will consume 2.0 g of imidazole dipeptides or placebo daily for four weeks.

Interventions/Control_2

Participants will consume 2.0 g of imidazole dipeptides or placebo daily for four weeks.

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

18 years-old <=

Age-upper limit

25 years-old >=

Gender

Male

Key inclusion criteria

1. Male university students aged 18 to 25.
2. No history of major injury or surgery within the past six months.
3. Deemed safe to participate by the physician based on self-reported medical history and medication use.

Key exclusion criteria

1. History of cardiovascular, respiratory, or metabolic diseases
2. Allergies to supplement ingredients (e.g., chicken-derived protein, beta-alanine)
3. Current use of substances listed on the 2025 WADA Prohibited List

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Tomoko
Middle name
Last name Kaburagi

Organization

Daito Bunka University

Division name

Faculty of Sports and Health Sciences

Zip code

355-8501

Address

Iwadono 560, Higashimatsuyama, Saitama

TEL

09054465497

Email

t-kabu@ic.daito.ac.jp


Public contact

Name of contact person

1st name Tomoko
Middle name
Last name Kaburagi

Organization

Daito Bunka University

Division name

Faculty of Sports and Health Sciences

Zip code

355-8681

Address

Iwadono 560, Higashimatsuyama, Saitama

TEL

0493-31-1552

Homepage URL


Email

t-kabu@ic.daito.ac.jp


Sponsor or person

Institute

Daito Bunka University

Institute

Department

Personal name

Tomoko Kaburagi


Funding Source

Organization

Daito Bunka University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor

TOKAI BUSSAN Co.,LTD.

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Office of Research Promotion, Daito Bunka University

Address

1-9-1 Takashimadaira, Itabashi-ku, Tokyo

Tel

03-5399-7830

Email

kenkyu@jm.daito.ac.jp


Secondary IDs

Secondary IDs

YES

Study ID_1

DHR25-015-1

Org. issuing International ID_1

Daito Bunka University Ethics Review Committee for Life Sciences and Medical Research Involving Human Subjects

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 10 Month 09 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 06 Month 23 Day

Date of IRB

2025 Year 07 Month 25 Day

Anticipated trial start date

2025 Year 09 Month 22 Day

Last follow-up date

2025 Year 12 Month 10 Day

Date of closure to data entry

2026 Year 05 Month 31 Day

Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 10 Month 09 Day

Last modified on

2025 Year 10 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067880