UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000058604
Receipt number R000067009
Scientific Title Placebo-controlled randomized double-blind crossover trial on the effect of continuous intake of lactic acid bacteria on improving weather-related illness symptoms
Date of disclosure of the study information 2026/07/24
Last modified on 2025/07/25 22:17:31

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Basic information

Public title

Placebo-controlled randomized double-blind crossover trial on the effect of continuous intake of lactic acid bacteria on improving weather-related illness symptoms

Acronym

Placebo-controlled randomized double-blind crossover trial on the effect of continuous intake of lactic acid bacteria on improving weather-related illness symptoms

Scientific Title

Placebo-controlled randomized double-blind crossover trial on the effect of continuous intake of lactic acid bacteria on improving weather-related illness symptoms

Scientific Title:Acronym

Placebo-controlled randomized double-blind crossover trial on the effect of continuous intake of lactic acid bacteria on improving weather-related illness symptoms

Region

Japan


Condition

Condition

Healthy subjects

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

A placebo-controlled, randomized, double-blind crossover trial will be conducted on women with weather-related illness to examine the effects of continuous consumption of the test food for four weeks on improving weather-related illness.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

(1) Frequency of symptoms caused by weather conditions

Key secondary outcomes

(1) POMS-2 Adult Short Form
(2) Japanese Version of the Weather-Related Illness and Weather Sensitivity Questionnaire (Japanese Version of METEO-Q)
(3) VAS (neck and shoulder stiffness, headache, dizziness, fatigue, mental distress)
(4) Salivary cortisol, salivary amylase *Objective indicators only
(5) Autonomic nervous system stress indicators (LF/HF, total power) *Objective indicators only


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


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

Consume the test food for four weeks, then consume the placebo food for four weeks after a washout period.

Interventions/Control_2

Consumption of placebo food for four weeks, followed by consumption of test food for four weeks after washout period.

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

50 years-old >

Gender

Female

Key inclusion criteria

(1) Healthy adult women aged 20 to 49 at the time of obtaining consent to participate in the trial
(2) Individuals who are aware of changes in their physical condition due to weather conditions
(3) Individuals who have received sufficient explanation of the purpose and content of this trial, have the capacity to consent, have fully understood the trial, have volunteered of their own free will, and have given their consent through electronic informed consent

Key exclusion criteria

(1) Under treatment or planning treatment for gynecological conditions (e.g., dysmenorrhea, PMS, PMDD, menopausal symptoms, uterine/ovarian/breast disorders).
(2) Under treatment or planning treatment for mental (e.g., depression, anxiety, insomnia), thyroid (e.g., Graves's, Hashimoto's), autonomic, migraine, or ENT disorders (e.g., vertigo, tinnitus, hearing loss).
(3) Having chronic diseases requiring regular treatment.
(4) History of major gastrointestinal surgery (e.g., gastrectomy, bowel resection), or under treatment for serious gastrointestinal conditions (excluding appendectomy only).
(5) Pregnant, breastfeeding, possibly pregnant, or planning pregnancy during the study.
(6) Allergy to study product.
(7) Regular use of health/functional foods or supplements that cannot be discontinued.
(8) Heavy smokers (>=21 cigarettes/day).
(9) High alcohol consumers (>=60 g/day, >=6 days/week; e.g., 3 servings of sake, 1500 mL beer, 2 shochu, or 5 glasses of wine).
(10) Irregular lifestyle (e.g., night/shift workers).
(11) Anticipated major lifestyle changes (e.g., relocation, long trip) or changes in diet/exercise.
(12) Participation in other trials within 4 weeks or during the study period.
(13) Judged ineligible by the investigator.

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Soma
Middle name
Last name Ode

Organization

Macromill, Inc.

Division name

Clinical Trial Department , Life Science Division

Zip code

108-0075

Address

Shinagawa East One Tower 11F, 2-16-1 Konan, Minato-ku, Tokyo, Japan

TEL

03-6716-0700

Email

ohde@macromill.com


Public contact

Name of contact person

1st name Yuki
Middle name
Last name Mori

Organization

Macromill, Inc.

Division name

Clinical Trial Department , Life Science Division

Zip code

108-0075

Address

Shinagawa East One Tower 11F, 2-16-1 Konan, Minato-ku, Tokyo, Japan

TEL

03-6716-0700

Homepage URL


Email

yuk_mori@macromill.com


Sponsor or person

Institute

Macromill, Inc.

Institute

Department

Personal name



Funding Source

Organization

Asahi Group Food 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

Institutional review board of Tsukiji Futaba Clinic

Address

1-9-9, Tsukiji, Chuou-ku, Tokyo, Japan

Tel

03-6226-5812

Email

tohru@hikobae.net


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

2026 Year 07 Month 24 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 22 Day

Date of IRB


Anticipated trial start date

2025 Year 07 Month 25 Day

Last follow-up date

2025 Year 12 Month 28 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 07 Month 25 Day

Last modified on

2025 Year 07 Month 25 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067009