UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000061098
Receipt number R000069250
Scientific Title Effects of using a chamomile essential oil hot eye mask on psychological state and sleep quality: A crossover controlled trial
Date of disclosure of the study information 2026/03/30
Last modified on 2026/03/29 17:39:55

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

Effects of heated eye mask use and the presence or absence of aroma on stress indicators and psychological state

Acronym

Effects of heated eye mask use and the presence or absence of aroma on stress indicators and psychological state

Scientific Title

Effects of using a chamomile essential oil hot eye mask on psychological state and sleep quality: A crossover controlled trial

Scientific Title:Acronym

Effects of using a chamomile essential oil hot eye mask on psychological state and sleep quality: A crossover controlled trial

Region

Japan


Condition

Condition

healthy adult

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine the effects of using a hot eye mask and the presence or absence of fragrance on stress indicators and psychological state.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Phase II


Assessment

Primary outcomes

Changes in stress levels will be assessed using the DASS-21 (Depression Anxiety Stress Scales-21).

Key secondary outcomes

1) The effects of hot eye mask use on depression and anxiety will be evaluated using the DASS-21.
2) Salivary amylase activity will be measured as a physiological indicator of psychological and physical stress, and short-term changes (after the first day of use) and long-term changes (after 6 consecutive days of use) will be evaluated.
3) The effects of hot eye mask use on subjective well-being will be evaluated using the SHS, assessing short-term changes (after the first day of use) and long-term changes (after 6 consecutive days of use).
4) Using the OSA-MA, short-term (the morning after the first use) and long-term (the morning after 6 consecutive days) changes will be assessed to evaluate effects on sleep upon awakening and subjective sleep quality.


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -but assessor(s) are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

3

Purpose of intervention

Prevention

Type of intervention

Behavior,custom

Interventions/Control_1

Intervention 1: Participants will use a heated eye mask without aroma at bedtime.

Interventions/Control_2

Intervention 2: Participants will use a heated eye mask with aroma at bedtime.

Interventions/Control_3

Control condition: Participants will not use a heated eye mask at bedtime.

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

18 years-old <=

Age-upper limit

28 years-old >

Gender

Male and Female

Key inclusion criteria

Those who have received sufficient explanation about the purpose and contents of this research, have the ability to consent, volunteered voluntarily after fully understanding, and agreed to participate in writing.

Key exclusion criteria

Exclusion criteria for study participation are as follows:
1)Individuals who decline to participate of their own will
2)Those who cannot distinguish scents
3)Those who have had an allergic reaction in the patch test at the time of study registration

Target sample size

36


Research contact person

Name of lead principal investigator

1st name Nobuyuki
Middle name
Last name Wakui

Organization

Hoshi University

Division name

Division of Applied Pharmaceutical Education and Research

Zip code

142-8501

Address

2-4-41 Ebara, Shinagawa-ku, Tokyo

TEL

03-5498-5760

Email

n-wakui@hoshi.ac.jp


Public contact

Name of contact person

1st name Nobuyuki
Middle name
Last name Wakui

Organization

Hoshi University

Division name

Practical Education and Research Division

Zip code

142-8501

Address

2-4-41 Ebara, Shinagawa-ku, Tokyo

TEL

03-5498-5760

Homepage URL


Email

n-wakui@hoshi.ac.jp


Sponsor or person

Institute

Hoshi University

Institute

Department

Personal name



Funding Source

Organization

Hoshi University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Hoshi University

Address

142-8501, 2-4-41 Ebara, Shinagawa-ku, Tokyo

Tel

03-3786-1011

Email

y-hashiguchi@hoshi.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



Other administrative information

Date of disclosure of the study information

2026 Year 03 Month 30 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 03 Month 15 Day

Date of IRB

2026 Year 03 Month 19 Day

Anticipated trial start date

2026 Year 05 Month 11 Day

Last follow-up date

2026 Year 11 Month 30 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 03 Month 29 Day

Last modified on

2026 Year 03 Month 29 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000069250