UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000053914
Receipt number R000061520
Scientific Title Evaluating the relaxation effects of Shikuwasa (Citrus depressa Hayata) essential oil inhalation in young female adults: study protocol for a randomised controlled trial
Date of disclosure of the study information 2024/04/01
Last modified on 2024/04/02 16:04:51

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Basic information

Public title

Evaluating the relaxation effects of Shikuwasa (Citrus depressa Hayata) essential oil inhalation in young female adults: study protocol for a randomised controlled trial

Acronym

Clinical trial to investigate the relaxation effects of Shikuwasa (Citrus depressa Hayata) essential oil inhalation

Scientific Title

Evaluating the relaxation effects of Shikuwasa (Citrus depressa Hayata) essential oil inhalation in young female adults: study protocol for a randomised controlled trial

Scientific Title:Acronym

Clinical trial to investigate the relaxation effects of Shikuwasa (Citrus depressa Hayata) essential oil inhalation

Region

Japan


Condition

Condition

Young female adults

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To explore the short-term relaxation effects of Shikuwasa essential oil in young healthy adults, which is one of the less-studied varieties.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The tense arousal subscale scores of the Japanese version of the University of Wales Institute of Science and Technology Mood Adjective Checklist [JUMACL] after two minutes of inhalation of Shikuwasa essential oil fragrance or odour-free air.

Key secondary outcomes

1. The changes of miosis rate (autonomic nervous activity) before and after inhalation of Shikuwasa essential oil fragrance or odour-free air for 2 minutes.
2. The changes in peripheral skin temperature (autonomic nervous activity) before and after inhalation of Shikuwasa essential oil fragrance or odour-free air for 2 minutes.
3. The changes in cerebral blood flow (central nervous activity) before and after inhalation of Shikuwasa essential oil fragrance or odour-free air for 2 minutes.
4. Visual Analogue Scale (VAS) evaluation of preference and impression regarding Shikuwasa essential oil inhalation or odour-free air inhalation.
5. Adverse events


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification

YES

Dynamic allocation

YES

Institution consideration

Institution is not considered as adjustment factor.

Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

inhalation of Shikuwasa essential oil

Interventions/Control_2

Inhalation of odour-free air (non-active control condition)

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

18 years-old <=

Age-upper limit

39 years-old >=

Gender

Male and Female

Key inclusion criteria

1.Female aged 18-39 years at the time of obtaining written informed consent.
2.Not being averse to the smell of citrus fruits, including Shikuwasa.
3.Expressing a willingness to participate in the study and providing voluntary consent by signing the informed consent form.

Key exclusion criteria

1.Having a history of or currently suffering from clinically problematic respiratory, gastrointestinal, hepatobiliary, haematological, renal, endocrine, cardiovascular, dermatological, or mental disorders.
2.Having a history of serious trauma or surgery within 12 weeks prior to the study.
3.Being sensitive to cold even in summer.
4.Unable to detect odours.
5.Having a history of or suspected allergy to foods (especially citrus fruits) or drugs requiring some kind of medical treatment.
6.Regularly taking psychotropic drugs (e.g. antidepressants, anxiolytics, or hypnotics)
7.Heavy smoker (21 or more cigarettes per day), heavy drinker (regularly drinking more than 60g pure alcohol per day), or having or suspected to have alcohol/substance misuse problems.
8.Regularly taking medicines, eating foods for specified health use, foods with function claims, or health food products that may affect the study results.
9.Being or possibly being pregnant or breastfeeding.
10.Have participated in other clinical trials within 4 weeks prior to the study.
11.Identifications of additional reasons, as deemed by study investigators, rendering the participant unsuitable for inclusion in the study.

Target sample size

40


Research contact person

Name of lead principal investigator

1st name Yasuji
Middle name
Last name Arimura

Organization

University of Miyazaki

Division name

Department of Health Care Research, Organization for Promotion of Research and Industry-Academic Regional Collaboration, University of Miyazaki (Kiyotake Branch)

Zip code

889-1692

Address

Kihara5200, Kiyotake, Miyazaki889-1692, Japan

TEL

0985-85-9577

Email

yasuji_arimura@med.miyazaki-u.ac.jp


Public contact

Name of contact person

1st name Yasuji
Middle name
Last name Arimura

Organization

University of Miyazaki

Division name

Department of Health Care Research, University of Miyazaki (Kiyotake Branch)

Zip code

889-1692

Address

Kihara5200, Kiyotake, Miyazaki889-1692, Japan

TEL

0985-85-9577

Homepage URL


Email

yasuji_arimura@med.miyazaki-u.ac.jp


Sponsor or person

Institute

University of Miyazaki

Institute

Department

Personal name



Funding Source

Organization

Ogawa & 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

Research Ethics Committee of University of Miyazaki

Address

Kihara 5200, Kiyotake, Miyazaki 889-1692, Japan

Tel

0985-85-9010

Email

igakubu_kenkyu@med.miyazaki-u.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 04 Month 01 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

Open public recruiting

Date of protocol fixation

2024 Year 02 Month 22 Day

Date of IRB

2024 Year 03 Month 21 Day

Anticipated trial start date

2024 Year 04 Month 01 Day

Last follow-up date

2024 Year 06 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

2024 Year 03 Month 20 Day

Last modified on

2024 Year 04 Month 02 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000061520


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name