UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058745
Receipt number R000066893
Scientific Title A Study on the Immunostimulatory Effects of the Test Food -A Randomized, Double-blind, Parallel-group Study-
Date of disclosure of the study information 2025/08/19
Last modified on 2025/08/21 23:51:14

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Basic information

Public title

A Study on the Immunostimulatory Effects of the Test Food -A Randomized, Double-blind, Parallel-group Study-

Acronym

A Study on the Immunostimulatory Effects of the Test Food

Scientific Title

A Study on the Immunostimulatory Effects of the Test Food -A Randomized, Double-blind, Parallel-group Study-

Scientific Title:Acronym

A Study on the Immunostimulatory Effects of the Test Food

Region

Japan


Condition

Condition

Healthy adults

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine the effects of the test food on immune function, primarily IgA, in healthy adults for eight weeks.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Salivary s-IgA concentration

Key secondary outcomes

- Questionnaire on cold-like symptoms
- Fecal IgA concentration
- IgA antibody titer (Influenza A)
- Immune function assessment (T cell count, CD4 T cell count, CD8 T cell count, CD4/CD8 ratio, naive T cell count, memory T cell count, naive/memory ratio, CD8+CD28+ T cell count, B cell count, NK cell count, immune score, T lymphocyte age)
- Salivary tests (cortisol, DHEA, oxytocin)
- Blood tests (BAP, d-ROM)
- Gut microbiota


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

Prevention

Type of intervention

Food

Interventions/Control_1

Consumption of the test food (1 pack a day, 8 weeks)

Interventions/Control_2

Consumption of the placebo food (1 pack a day, 8 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

20 years-old <=

Age-upper limit

65 years-old >

Gender

Male and Female

Key inclusion criteria

1. Participants aged 20 to 64 years
2. Japanese men and women
3. BMI over 18.5 and less than 30.0 kg/m^2
4. History of upper respiratory tract infection at least once per year
5. Able to enter electronic diaries via smartphone or PC
6. Sufficiently informed about the study and voluntarily consented in writing

Key exclusion criteria

1. Currently receiving treatment for any disease with medication or Kampo (as-needed use allowed)
2. Under physician-supervised dietary or exercise therapy
3. History or presence of serious illness
4. History of gastrointestinal surgery (except appendicitis)
5. Atopic dermatitis, allergic rhinitis (seasonal/perennial), bronchial asthma, chronic bronchitis, or other immune-related diseases (e.g., autoimmune diseases)
6. Current or past treatment for dry mouth or Sjogren's syndrome
7. Consumes yogurt, lactic acid bacteria, or bifidobacteria foods at least 3 times per week, or unwilling to refrain during the study
8. Currently taking quasi-drugs, FOSHU, FFC, supplements, or health foods (allowed if discontinued after consent)
9. Plans to use drugs affecting immune function or gut flora (e.g., antiallergics, antibiotics) during the study
10. Vaccinated against influenza, COVID-19, etc., within 1 month before consent, or plans to be vaccinated during the study
11. Participants with current or past drug or food allergies
12. Irregular lifestyle due to night or shift work
13. Plans to significantly change lifestyle (diet, sleep, exercise) during the study
14. Heavy alcohol consumption (more than or equal to 40 g per day)
15. Excessive smoking (more than or equal to 21 cigarettes per day)
16. Plans for overseas travel during the study
17. Pregnant, breastfeeding, or planning pregnancy during the study
18. Currently using or planning to use oral contraceptives during the study
19. Donated more than 200 mL of blood within 1 month or more than 400 mL within 3 months before consent
20. Participated in other clinical studies within 1 month before consent, currently participating, or planning to participate during the study
21. Considered unsuitable for participation by the principal or sub-investigator

Target sample size

40


Research contact person

Name of lead principal investigator

1st name Mamiko
Middle name
Last name Kohno

Organization

Morishita Jintan Co., Ltd.

Division name

Fundamental Research and Development Department, Research and Development Headquarters

Zip code

573-0128

Address

2-11-1, Tsudayamate, Hirakata-shi, Osaka, 573-0128, Japan

TEL

072-800-1044

Email

m_kohno@jintan.co.jp


Public contact

Name of contact person

1st name Yoshitada
Middle name
Last name Hira

Organization

IMEQRD Co., Ltd.

Division name

Planning and Sales Department

Zip code

104-0061

Address

Daiwa Ginza Bld. 3F, 6-2-1, Ginza, Chuo-ku, Tokyo, Japan

TEL

0367045968

Homepage URL


Email

clinical-trial@imeqrd.co.jp


Sponsor or person

Institute

IMEQRD Co. Ltd.

Institute

Department

Personal name



Funding Source

Organization

Morishita Jintan Co., Ltd.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Suda Clinic institutional review board

Address

2-8-14,Takadanobaba,Shinjyuku,Tokyo

Tel

0367045968

Email

jimukyoku@imeqrd.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 08 Month 19 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 07 Month 08 Day

Date of IRB

2025 Year 07 Month 15 Day

Anticipated trial start date

2025 Year 08 Month 20 Day

Last follow-up date

2025 Year 12 Month 12 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 08 Month 08 Day

Last modified on

2025 Year 08 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066893