UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000057916
Receipt number R000066181
Scientific Title Verification of effects on autonomic nervous system, by inhalation of test products-including aroma
Date of disclosure of the study information 2026/05/21
Last modified on 2025/10/24 16:58:34

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Basic information

Public title

Verification of effects on autonomic nervous system, by inhalation of test products-including aroma

Acronym

Verification of effects on autonomic nervous system, by inhalation of test products-including aroma

Scientific Title

Verification of effects on autonomic nervous system, by inhalation of test products-including aroma

Scientific Title:Acronym

Verification of effects on autonomic nervous system, by inhalation of test products-including aroma

Region

Japan


Condition

Condition

Healthy female volunteers

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to compare the physiological and psychological effects of using fragrances containing synthetic fragrances as air fresheners in women aged 20 to 49 years old, using a placebo fragrance as a control.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Pupillary light reflex

Key secondary outcomes

Subjective questionnaire/skin temperature/brain activity


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Other

Interventions/Control_1

Smell the test products-including aromas

Interventions/Control_2

Smell the control product

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

49 years-old >=

Gender

Female

Key inclusion criteria

(1) Women aged 20 to 50 at the time of obtaining informed consent
(2) Those with a BMI of 18.5 or more and less than 25.0 kg/m2
(3) Individuals who have received a sufficient explanation of the study, can understand the contents, and can give their own informed consent

Key exclusion criteria

(1) People who dislike citrus scents such as lemon, herbal scents such as lavender and eucalyptus, and woody scents such as incense and cypress.
(2) People who have a habit of smoking (excluding those who have quit smoking for more than six months)
(3) Those taking foods for specified health uses, foods with functional claims (GABA, lactobacillus drinks for stress relief, etc.), health foods (including supplements), etc. that may affect the study
(4) Persons whose eyes (exotropia, esotropia, ptosis, etc.) or eyelashes are not suitable for pupil measurement
(5) Persons who have dry eyes or other conditions that impede pupil measurement
(6) Persons who are aware of claustrophobia or nyctophobia
(7) Persons who are aware of daily daytime sleepiness or who have irregular sleep hours due to night shifts, etc.
(8) People who are taking medications on an ongoing basis
(9) People who are aware of poor circulation (including people who feel cold hands and feet even in summer)
(10) People who have stuffy noses due to allergic rhinitis, or who cannot distinguish between scents
(11) Persons with external wound at the measurement site
(12) Persons currently participating in clinical trials of other drugs or health foods, or who have completed the trial within 4 weeks
(13) Persons with symptoms of skin diseases such as atopic dermatitis
(14) Persons with a history or current history of serious diseases of the heart, liver, kidneys, digestive system, etc.
(15) Persons who are pregnant, wish to become pregnant, or are breastfeeding
(16) Individuals with chemical sensitivity or allergies to essential oils, alcohol, or synthetic fragrances
(17) Individuals who have experienced or may experience nausea from the smell of alcohol or synthetic fragrances
(18) Individuals who are deemed inappropriate for participation in this study by the principal investigator, etc.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Koji
Middle name
Last name Sakamoto

Organization

KOBAYASHI Pharmaceutical Co.,Ltd.

Division name

Personal & House Care Product Development Dpmt R&D Headquarters

Zip code

567-0057

Address

1-30-3,Toyokawa,Ibaraki-city,Osaka 567-0057 Japan

TEL

080-3459-9170

Email

k.sakamoto@kobayashi.co.jp


Public contact

Name of contact person

1st name Yuri
Middle name
Last name Tanaka

Organization

KOBAYASHI Pharmaceutical Co.,Ltd.

Division name

Personal & House Care Product Development Dpmt R&D Headquarters

Zip code

567-0057

Address

1-30-3,Toyokawa,Ibaraki-city,Osaka 567-0057 Japan

TEL

080-3499-6257

Homepage URL


Email

yur.tanaka@kobayashi.co.jp


Sponsor or person

Institute

KOBAYASHI Pharmaceutical Co.,Ltd.

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Chiyoda Paramedical Care Clinic Ethics Committee

Address

3-3-10,Hongoku-cho,Nihonbashi,Chuo-ku,Tokyo JAPAN

Tel

03-6225-9005

Email

IRB@cpcc.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

2026 Year 05 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

Completed

Date of protocol fixation

2025 Year 04 Month 21 Day

Date of IRB

2025 Year 04 Month 18 Day

Anticipated trial start date

2025 Year 05 Month 21 Day

Last follow-up date

2025 Year 05 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

2025 Year 05 Month 20 Day

Last modified on

2025 Year 10 Month 24 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000066181