UMIN-CTR Clinical Trial
| Unique ID issued by UMIN | UMIN000062257 |
|---|---|
| Receipt number | R000071237 |
| Scientific Title | Bioequivalence Study of Beverages Containing Green Tea Catechin Extracts: A Randomized, Single-Blind, Crossover Trial |
| Date of disclosure of the study information | 2026/07/21 |
| Last modified on | 2026/07/16 15:12:09 |
* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments
Basic information
Public title
Bioequivalence Study of Beverages Containing Green Tea Catechin Extracts: A Randomized, Single-Blind, Crossover Trial
Acronym
A comparative study of absorption and metabolism of catechins
Scientific Title
Bioequivalence Study of Beverages Containing Green Tea Catechin Extracts: A Randomized, Single-Blind, Crossover Trial
Scientific Title:Acronym
A comparative study of absorption and metabolism of catechins
Region
| Japan |
Condition
Condition
Not applicable
Classification by specialty
| Not applicable | Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
To evaluate the absorption and metabolism of catechins.
Basic objectives2
Pharmacokinetics
Basic objectives -Others
Trial characteristics_1
Confirmatory
Trial characteristics_2
Others
Developmental phase
Not applicable
Assessment
Primary outcomes
Pharmacokinetic and Metabolite Analysis of Catechins
Key secondary outcomes
Base
Study type
Interventional
Study design
Basic design
Cross-over
Randomization
Randomized
Randomization unit
Individual
Blinding
Single blind -participants are blinded
Control
Placebo
Stratification
NO
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
Prevention
Type of intervention
| Food |
Interventions/Control_1
Single Administration of Catechin-Containing Beverage A
Interventions/Control_2
Single Administration of Catechin-Containing Beverage B
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
| 60 | years-old | > |
Gender
Male and Female
Key inclusion criteria
ealthy male and female employees of the R&D Division, SCM Division, or Manufacturing Division of ITO EN, Ltd., aged 18 years or older and younger than 60 years at the time of providing written informed consent.
Key exclusion criteria
a. Individuals receiving pharmacological treatment for any disease.
b. Individuals with severe anemia.
c. Individuals with known or suspected allergies to the test beverage or any foods consumed during the study period.
d. Individuals with a current or past history of gastrointestinal disease, cardiovascular disease, nephritis, hepatitis, pancreatitis, or other clinically significant diseases, or those with severe psychiatric disorders.
e. Individuals who are likely to experience changes in their lifestyle during the study period (e.g., night-shift work or extended travel).
f. Current smokers.
g. Individuals who routinely consume Foods for Specified Health Uses (FOSHU) or Foods with Function Claims (FFC).
h. Individuals who regularly use medications (including herbal medicines) or dietary supplements.
i. Individuals who are pregnant, breastfeeding, or intending to become pregnant during the study period.
j. Individuals considered unsuitable for participation in the study by the principal investigator.
Target sample size
5
Research contact person
Name of lead principal investigator
| 1st name | Makoto |
| Middle name | |
| Last name | Kobayashi |
Organization
ITO EN, Ltd.
Division name
Central Research Institute
Zip code
421-0516
Address
21 Mekami, Makinohara-shi, Shizuoka, Japan
TEL
0548-54-1247
m-kobayasi@itoen.co.jp
Public contact
Name of contact person
| 1st name | Kazutoshi |
| Middle name | |
| Last name | Okawa |
Organization
ITO EN, Ltd.
Division name
Central Research Institute
Zip code
421-0516
Address
21 Mekami, Makinohara-shi, Shizuoka, Japan
TEL
0548-54-1247
Homepage URL
k-okawa@itoen.co.jp
Sponsor or person
Institute
Central Research Institute, ITO EN, Ltd.
Institute
Department
Personal name
Funding Source
Organization
Central Research Institute, ITO EN, Ltd.
Organization
Division
Category of Funding Organization
Self funding
Nationality of Funding Organization
Other related organizations
Co-sponsor
Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University
Name of secondary funder(s)
IRB Contact (For public release)
Organization
ITO EN, Ltd. Institutional review board
Address
Hon-machi, Shibuya-ku, Tokyo
Tel
03-5371-7111
t-okano@itoen.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
株式会社伊藤園
Other administrative information
Date of disclosure of the study information
| 2026 | Year | 07 | Month | 21 | 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 | 30 | Day |
Date of IRB
| 2026 | Year | 04 | Month | 13 | Day |
Anticipated trial start date
| 2026 | Year | 07 | Month | 15 | Day |
Last follow-up date
| 2026 | Year | 07 | Month | 23 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
Management information
Registered date
| 2026 | Year | 07 | Month | 16 | Day |
Last modified on
| 2026 | Year | 07 | Month | 16 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071237
