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Validation study about improvement effects on sleep and brain fatigue by inhalation of citrus oil-inducing odorant

Validation study about improvement effects on sleep and brain fatigue by inhalation of citrus oil-inducing odorant - Validation study about improvement effects on sleep and brain fatigue by inhalation of citrus oil-inducing odorant

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000042494
Enrollment
24
Registered
2021-11-23
Start date
2020-11-23
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy male/female adults

Interventions

Inhalation of a test odorant-containing tap-water mist (100 mL), which is emitted from an aroma-diffuser, to the volunteer at his/her normal bedtime for a week. Inhalation of a deionized water-contain

Sponsors

CPCC Company Limited
Lead Sponsor
Graduate School of Integrative and Global Majors, Tsukuba University
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Healthy male/female volunteers ranging in age from 30 to 45, living in Tokyo and the surrounding area. (2) Volunteers with physiologically sleepless, because of feebleness (e.g., difficulty in falling asleep for not less than 30 min, in waking up perspicuously; and/or having a nocturnal awakening, a lack of sleeping time, etc.) (3) Volunteers working for not less than 4 days a week, restricting for above 3.5 hours in the daytime. (4) Volunteers who have no difficulty in refraining from using a smartphone, a mobile phone or a personal computer, since an hour before their time to go to bed. (5) Volunteers being not poor at a sweet-smelling citrus (e.g., orange and lemon). (6) Volunteers who have no difficulty in refraining from taking in some kind of alcohol/caffeine on and after 17 o'clock during this trial. (7) Volunteers who are not planning to go on a trip, and/or be a way overnight. (8) Volunteers equipped with a capacity to breath in the odorant from the diffuser, being at home. (9) Volunteers who can give informed consent to take part in this trial after being provided with an explanation of the protocol detail.

Exclusion criteria

Exclusion criteria: (1) Volunteers falling into the habit of smoking. (2) Volunteers with the condition of being over-sensitiveness to cold, even during the summer season. (3) Volunteers with nasal congestion and/or wrong judgement of fragrance. (4) Volunteers with some kind of continuous medical treatment, at the present time. (5) Volunteers who have undergone a remedy for their sleep disorder. (6) All through this trial, volunteers who have any difficulty in refraining from taking steadily in the health-specific/functional/health foods, which might affect their sleep and/or fatigue. (7) Volunteers with high blood pressure-- a maximal blood pressure of not less than 160 mmHg, a minimal blood one of not less than 100 mmHg--, and so on. (8) Volunteers who realized that the volunteers themselves must be in a state of menopausal disorder. (9) Pregnant, lactating women, or possibly pregnant ones. (10) Volunteers having present/previous medical history of serious diseases in liver, kidney, heart, lung, and/or blood. (11) Volunteers who are now under the other clinical tests with some kind of medicine/food, or participated in those within a month before this trial. (12) Volunteers sleeping together with their family and/or children (especially in pre-school children) in a bed time. (13) Others who have been determined as ineligible for participation, according to the investigator's opinions.

Design outcomes

Primary

MeasureTime frame
1. OSA sleep inventory 2. Pittsburg sleep questionnaire

Secondary

MeasureTime frame
1. Stress Check List 30 2. Active mass 3. Flicker 4. Mental age

Countries

Japan

Contacts

Public ContactMasanori Numa

CPCC Company Limited Planning & Sales Department

cpcc-contact@cpcc.co.jp03-5297-3112

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026