| Recruitment status | Completed |
| Unique ID issued by UMIN | UMIN000032742 |
| Receipt No. | R000037343 |
| Scientific Title | A verification study of effectiveness to sleep and of influence on cognitive function of the black tea fragrance |
| Date of disclosure of the study information | 2018/05/30 |
| Last modified on | 2020/10/09 (Ver. 3) |
| Basic information | ||
| Public title | A verification study of effectiveness to sleep and of influence on cognitive function of the black tea fragrance | |
| Acronym | A verification study of effectiveness to sleep and of influence on cognitive function of the black tea fragrance | |
| Scientific Title | A verification study of effectiveness to sleep and of influence on cognitive function of the black tea fragrance | |
| Scientific Title:Acronym | A verification study of effectiveness to sleep and of influence on cognitive function of the black tea fragrance | |
| Region |
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| Condition | ||
| Condition | Not applicable | |
| Classification by specialty |
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| Classification by malignancy | Others | |
| Genomic information | NO | |
| Objectives | |
| Narrative objectives1 | To confirm the effectiveness to improvement of sleep and the influence on cognitive function by smelling the black tea fragrance. |
| Basic objectives2 | Efficacy |
| Basic objectives -Others | |
| Trial characteristics_1 | |
| Trial characteristics_2 | |
| Developmental phase | |
| Assessment | |
| Primary outcomes | 1. Evaluation of sleep : QOL questionnaire
2.Evaluation of cognitive function : Brain stress test, Walking measurement |
| Key secondary outcomes | |
| 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 |
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| Interventions/Control_1 | During 4 weeks of first term, smell the fragrance of black tea for 3 hours a day at bedtime. Then visit the clinic, answer the QOL questionnaires, take the brain stress test and attend the walking measurement. During 4 weeks of second term, smell the fragrance of control for 3 hours a day at bedtime. Then visit the clinic, answer the QOL questionnaires, take the brain stress test and attend the walking measurement. | |
| Interventions/Control_2 | During 4 weeks of first term, smell the fragrance of control for 3 hours a day at bedtime. Then visit the clinic, answer the QOL questionnaires, take the brain stress test and attend the walking measurement. During 4 weeks of second term, smell the fragrance of the black tee for 3 hours a day at bedtime. Then visit the clinic, answer the QOL questionnaires, take the brain stress test and attend the walking measurement. | |
| 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 |
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| Age-upper limit |
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| Gender | Male and Female | |||
| Key inclusion criteria | (1) Male and females aged over 40 years old who recognize by themselves that they can't sleep well physiologically. (For examples, subjects who can't fall in sleep within 30 min, subjects who have middle awakening and/or subjects who are short of sleeping time)
(2) Subjects who don't dislike black tea. (3) Subjects who show understanding of the clinical study procedures and agreement with participating the study by written informed consent prior to the study. |
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| Key exclusion criteria | (1)Subjects who have been determined ineligible by the investigator of this clinical test. | |||
| Target sample size | 80 | |||
| Research contact person | |||||||
| Name of lead principal investigator |
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| Organization | University of Tsukuba
School of Integrative |
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| Division name | Global Majors | ||||||
| Zip code | 305-8577 | ||||||
| Address | 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577 Japan | ||||||
| TEL | 029-853-7344 | ||||||
| yada.yukihiri.gb@u.tsukuba.ac.jp | |||||||
| Public contact | |||||||
| Name of contact person |
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| Organization | CPCC Company Limited | ||||||
| Division name | Planning & Sales Department | ||||||
| Zip code | 101-0047 | ||||||
| Address | 4F Chusin Building, 3-3-5 Uchikanda Chiyoda-ku, Tokyo 101-0047, Japan | ||||||
| TEL | 03-5297-3112 | ||||||
| Homepage URL | |||||||
| cpcc-contact@cpcc.co.jp | |||||||
| Sponsor | |
| Institute | University of Tsukuba
School of Integrative |
| Institute | |
| Department | |
| Funding Source | |
| Organization | Mitsui Norin 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 | Institutional Review Board of Chiyoda Paramedical Care Clinic |
| Address | 2F Chusin Building, 3-3-5 Uchikanda Chiyoda-ku, Tokyo 101-0047, Japan |
| Tel | 03-5297-5548 |
| 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 | |
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| Date of disclosure of the study information |
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| 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 |
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| Anticipated trial start date |
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| Date analysis concluded | |||||||
| Other | |
| Other related information | |
| Management information | |||||||
| Registered date |
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| Last modified on |
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| Link to view the page | |
| URL(English) | https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000037343 |