UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000049616
Receipt number R000056476
Scientific Title A study to confirm the effect of lactic acid bacteria intake on improving immune function - Randomized, double-blind, placebo-controlled, parallel-group comparison method -
Date of disclosure of the study information 2024/06/29
Last modified on 2025/11/07 10:16:00

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Basic information

Public title

A study to confirm the effect of lactic acid bacteria intake on improving immune function - Randomized, double-blind, placebo-controlled, parallel-group comparison method -

Acronym

A study to confirm the effect of lactic acid bacteria intake on improving immune function

Scientific Title

A study to confirm the effect of lactic acid bacteria intake on improving immune function - Randomized, double-blind, placebo-controlled, parallel-group comparison method -

Scientific Title:Acronym

A study to confirm the effect of lactic acid bacteria intake on improving immune function

Region

Japan


Condition

Condition

Healthy adults

Classification by specialty

Not applicable

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To confirm the effect of study food intake on immune functions

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

cold-like symptoms questionnaire

Key secondary outcomes

pDC activity, mDC activity, salivary sIgA, NK cell activity at 4 weeks after intake
pDC activity, mDC activity, salivary sIgA, NK cell activity at 8 weeks after intake
POMS-2


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

8-week intake of lactic acid bacteria

Interventions/Control_2

8-week intake of placebo (not containing lactic acid bacteria)

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) Healthy Japanese males and females from 20 to 65 years old.
2) Subjects who have received sufficient explanation of the purpose and content of the study, have the capacity to consent, have voluntarily volunteered to participate based on a good understanding of the study, and have agreed to participate in the study in writing.

Key exclusion criteria

Subjects--
1) suffering from, undergoing treatment, or with a history of diabetes, renal or hepatic disease, or other serious illness, thyroid disease, adrenal gland disease, psychiatric disease, autoimmune disease, or other metabolic disease.
2) who cannot stop taking foods containing lactic acid bacteria, bifidobacteria, oligosaccharides, or other bacteria during the study period.
3) who regularly use foods that may affect immunity.
4) who constantly consumes more than the appropriate amount of alcohol.
5) who are unable to abstain from alcohol for 2 days prior to each test.
6) who have declared having food allergies.
7) with a history of gastrointestinal diseases or gastrointestinal surgery (except appendicitis).
8) who are pregnant, breast feeding, or planning to be pregnant during the study period.
9) with a history or current history of drug or alcohol dependence.
10) who are participating or intend to participate in other studies involving the use of other foods, drugs or cosmetics.
11) who regularly use medicines that may affect immunity, or who are unable to stop taking them during the study period.
12) with hay fever, atopic dermatitis, allergic rhinitis, bronchial asthma, or chronic bronchitis.
13) who have oral problems that involve bleeding, or plan to undergo dental or oral treatment.
14) who engage in strenuous exercise.
15) who plan to travel abroad during the study period.
16) who have taken antibiotics within 1 month of the screening test.
17) who smoke.
18) who have donated more than a certain amount of blood drawn or component blood within 3 months prior to the date of obtaining consent.
19) who work in day and night shifts, late at night, or who are full telecommuters or blue-collar workers.
20) who are diagnosed with dry mouth.
21) who have not had any cold-like symptoms within the last year.
22) with BMI less than 18.5 or greater than 30.0.
23) who are determined to be inappropriate as research subjects by the principal investigator--.

Target sample size

200


Research contact person

Name of lead principal investigator

1st name Yoshitaka
Middle name
Last name Iwama

Organization

Nihonbashi Cardiology Clinic

Division name

Director

Zip code

103-0001

Address

Kyodo Bldg. #201, 13 - 4 Nihonbashi Kodenmacho, Chuo-ku, Tokyo

TEL

03-5641-4133

Email

yiwama@well-sleep.jp


Public contact

Name of contact person

1st name Eiji
Middle name
Last name Yoshikawa

Organization

KSO Corporation

Division name

Clinical Trial Management department

Zip code

105-0023

Address

1-9-7 Shibaura, Minato-ku, Tokyo

TEL

03-3452-7733

Homepage URL


Email

eigyou@kso.co.jp


Sponsor or person

Institute

KSO Corporation

Institute

Department

Personal name



Funding Source

Organization

Ezaki Glico 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

Ethical Committee of Kobuna Orthopedics Clinic

Address

5-656-17 Joto-machi, Maebashi-shi, Gunma

Tel

027-212-5608

Email

sagawa@mc-connect.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

2024 Year 06 Month 29 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

Main results already published

Date of protocol fixation

2022 Year 09 Month 08 Day

Date of IRB

2022 Year 09 Month 08 Day

Anticipated trial start date

2023 Year 01 Month 23 Day

Last follow-up date

2023 Year 03 Month 26 Day

Date of closure to data entry

2023 Year 05 Month 18 Day

Date trial data considered complete

2023 Year 06 Month 14 Day

Date analysis concluded



Other

Other related information



Management information

Registered date

2022 Year 11 Month 25 Day

Last modified on

2025 Year 11 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000056476