UMIN-ICDS Clinical Trial
| Unique ID issued by UMIN | UMIN000062453 |
|---|---|
| Receipt number | R000071332 |
| Scientific Title | Effect of a Single Ingestion of Herb Tea on Temporary Psychological Stress: A Randomized, Double-Blind, Placebo-Controlled, Crossover Study |
| Date of disclosure of the study information | 2026/08/26 |
| Last modified on | 2026/07/24 16:50:47 |
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Basic information
Public title
Effect of a Single Ingestion of Herb Tea on Temporary Psychological Stress: A Randomized, Double-Blind, Placebo-Controlled, Crossover Study
Acronym
Effect of a Single Ingestion of Herb Tea on Temporary Psychological Stress
Scientific Title
Effect of a Single Ingestion of Herb Tea on Temporary Psychological Stress: A Randomized, Double-Blind, Placebo-Controlled, Crossover Study
Scientific Title:Acronym
Effect of a Single Ingestion of Herb Tea on Temporary Psychological Stress
Region
| Japan |
Condition
Condition
Healthy adults
Classification by specialty
| Not applicable | Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
To evaluate the effects of a single ingestion of herb tea on temporary psychological stress in a randomized, double-blind, placebo-controlled, crossover study.
Basic objectives2
Safety,Efficacy
Basic objectives -Others
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
Change in visual analog scale (VAS) score for psychological stress from baseline (pre-stress) to post-stress.
Key secondary outcomes
Visual analog scale (VAS) score for fatigue, tension, calm, wakefulness, and concentration
Vital signs
Uchida-Kraepelin test score
Heart rate variability measured by a portable electrocardiograph
Base
Study type
Interventional
Study design
Basic design
Cross-over
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
YES
Concealment
Central registration
Intervention
No. of arms
2
Purpose of intervention
Prevention
Type of intervention
| Food |
Interventions/Control_1
A single dose of 100 mL of a beverage containing herb extract, followed by a 1-week washout period, and then a single dose of 100 mL of a placebo beverage.
Interventions/Control_2
A single dose of 100 mL of a placebo beverage, followed by a 1-week washout period, and then a single dose of 100 mL of a beverage containing herb extract.
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
1. Subjects who fully understand significance, content and purpose of this study and who agree to participate in this study with a written informed consent.
2. BDI score < 21.
Key exclusion criteria
1. Current or past history of psychiatric or sleep disorders requiring treatment, medication, or lifestyle guidance.
2. Under physician's advice, treatment, and/or medication for hypertension, dyslipidemia, and/or diabetes.
3. Use of medicine, functional foods, or supplements which affect blood clotting and/or platelet aggregation.
4. Implantable electronic medical devices.
5. Serious cerebrovascular, cardiac, hepatic, renal, gastrointestinal diseases, respiratory diseases or infectious diseases requiring reports to the authorities.
6. Major surgical history relevant to the digestive system such as gastrectomy, gastric suturing, or bowel resection.
7. Unusually high/low blood pressure, or abnormal anthropometric or hematological data.
8. Severe anemia.
9. Pre- or post-menopausal women complaining of obvious physical changes.
10. Risk of having allergic reactions to drugs or foods.
11. Regular intake of medicine, functional foods, or supplements which would affect sleep, stress, or fatigue.
12. Regular intake of energy drink or nutritional supplement drinks.
13. Subjects whose lifestyle is planned to change during the study.
14. Low stress response to mental arithmetic tasks.
15. Heavy smokers, alcohol addicts or subjects with disordered lifestyle.
16. Blood donation prior to the study: either 400 mL whole blood within 16 wks (women), 12 wks(men), 200 mL whole blood within 4 wks (men and women), or blood components within 2 wks (men and women).
17. Pregnant or lactating women or those planning to become pregnant.
18. Current participation in other clinical trials, or participation within the last 4 weeks prior to the study.
19. Any other medical and/or health reasons unfavorable to participation in the current study, as judged by the principal investigator.
Target sample size
36
Research contact person
Name of lead principal investigator
| 1st name | Naoyuki |
| Middle name | |
| Last name | HONMA |
Organization
Hokkaido Information University
Division name
Department of Medical Management and Informatics
Zip code
069-8585
Address
59-2, Nishi-nopporo, Ebetsu, Hokkaido, 069-8585, Japan
TEL
011-385-4430
hisc-acad.res@s.do-johodai.ac.jp
Public contact
Name of contact person
| 1st name | Naoyuki |
| Middle name | |
| Last name | HONMA |
Organization
Hokkaido Information University
Division name
Health Information Science Center
Zip code
069-0832
Address
45-7, Nishi-nopporo, Ebetsu, Hokkaido, 069-0832, Japan
TEL
011-385-4430
Homepage URL
hisc-acad.res@s.do-johodai.ac.jp
Sponsor or person
Institute
Hokkaido Information University
Institute
Department
Personal name
Funding Source
Organization
S&B FOODS INC.
Organization
Division
Category of Funding Organization
Profit organization
Nationality of Funding Organization
Japan
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
The ethics committee of Hokkaido Information University
Address
59-2, Nishi-nopporo, Ebetsu, Hokkaido, 069-8585, Japan
Tel
011-385-4411
soumu@do-johodai.ac.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
北海道情報大学 保健センター（北海道）
Other administrative information
Date of disclosure of the study information
| 2026 | Year | 08 | Month | 26 | 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 | 29 | Day |
Date of IRB
| 2026 | Year | 06 | Month | 29 | Day |
Anticipated trial start date
| 2026 | Year | 09 | Month | 01 | Day |
Last follow-up date
| 2026 | Year | 11 | Month | 20 | 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 | 08 | Month | 03 | Day |
Last modified on
| 2026 | Year | 07 | Month | 24 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071332
