| Recruitment status | Completed |
| Unique ID issued by UMIN | UMIN000041636 |
| Receipt No. | R000047518 |
| Scientific Title | Examination of the effect of cacao intake on performance and brain activity during cognitive task: single blind - investigators and assessors blind - cross over comparison study |
| Date of disclosure of the study information | 2020/10/13 |
| Last modified on | 2022/11/21 (Ver. 4) |
| Basic information | ||
| Public title | Examination of the effect of cacao intake on performance and brain activity during cognitive task: single blind - investigators and assessors blind - cross over comparison study | |
| Acronym | Examination of the effect of cacao intake on performance and brain activity during cognitive task | |
| Scientific Title | Examination of the effect of cacao intake on performance and brain activity during cognitive task: single blind - investigators and assessors blind - cross over comparison study | |
| Scientific Title:Acronym | Examination of the effect of cacao intake on performance and brain activity during cognitive task | |
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| Condition | ||
| Condition | Healthy adults | |
| Classification by specialty |
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| Classification by malignancy | Others | |
| Genomic information | NO | |
| Objectives | |
| Narrative objectives1 | To examine effects of single ingestion of cacao products on subjective feelings (fatigue, stress, boring, sleepiness, motivation, healng, joy, relax, and concentration), autonomic nervous function, cognitive function and brain function. |
| Basic objectives2 | Efficacy |
| Basic objectives -Others | |
| Trial characteristics_1 | |
| Trial characteristics_2 | |
| Developmental phase | |
| Assessment | |
| Primary outcomes | Comparison of brain activity during cognitive task at the period from 25 to 40 minutes after test food ingestion and from 50 to 65 minutes after test food ingestion. |
| Key secondary outcomes | Comparison of cognitive task performance at the period from 25 to 40 minutes after test food ingestion and from 50 to 65 minutes after test food ingestion.
Comparison of subjective feelings, measured by visual analog scale, before and after test food ingestion. Comparison of autonomic nervous function before and after test food ingestion. |
| Base | |
| Study type | Interventional |
| Study design | |
| Basic design | Cross-over |
| Randomization | Randomized |
| Randomization unit | Individual |
| Blinding | Single blind -investigator(s) and assessor(s) are blinded |
| Control | Dose comparison |
| Stratification | |
| Dynamic allocation | |
| Institution consideration | |
| Blocking | |
| Concealment | |
| Intervention | ||
| No. of arms | 2 | |
| Purpose of intervention | Treatment | |
| Type of intervention |
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| Interventions/Control_1 | Single ingestion of test food 1-> Washout (3 days or more) -> Single ingestion of test food 2 | |
| Interventions/Control_2 | Single ingestion of test food 2-> Washout (3 days or more) -> Single ingestion of test food 1 | |
| Interventions/Control_3 | ||
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| Interventions/Control_5 | ||
| Interventions/Control_6 | ||
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| 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) Individual who has received sufficient explanation about purpose and content of research, and consenting ability, and who volunteers with his/her free intent and gives written informed consent.
2) Healthy men and women aged 30 to under 50 at the time of informed consent. |
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| Key exclusion criteria | - Individual who has been taken medications, quasi-drugs and supplements for more than 5 days a week within a month before screening test, or who plans to take those for more than 5 days a week during research period
- Individual who has a serious disease such as cranial nerve disease, liver disease, kidney disease, heart disease, cardiovascular disease, malignancy, or who has history of that - Individual who has nervous seizure, color blindness, diabetes, or arrhythmia, or who has history of that - Individual who has food allergy - Individual who cannot intake foods containing a large amount of test food ingredients - Individual who consume excessive alcohol - Individual who has a smoking habit - Individual who have day and night shift work and night work during research period - Individual who quite poor performance for cognitive function task in the SCR - Individual who did not complete the measurement of autonomic nervous system test in the SCR - Individual who is left-handed - Individual using internal or external life support devices - Individual with a metallic foreign body inside - Individual using orthodontic metal bridges - Individual who is applying tattoos and permanent makeup - Individual who is or has been engaged in the metalworking industry or in work that frequently handle metals - Individual with mental attacks or claustrophobia - Individual with impaired hearing, vocalization, or grip strength - Individual who have difficulty in regulating body temperature regulation or sweating - Individual who cannot continue supine for more than 1 hour - Individual who has participated in other clinical research within a month before the research, or plan to participate that during the research period - Individual who is pregnant, possibly pregnant, or breastfeeding, or who has plan or wish for pregnancy during the study period - Individual whom principal investigator or sub-investigator judged to be inappropriate as a subject. |
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| Target sample size | 30 | |||
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| Name of lead principal investigator |
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| Organization | RIKEN Center for Biosystems Dynamics Research | ||||||
| Division name | Laboratory for Pathophysiological and Health Science | ||||||
| Zip code | 650-0047 | ||||||
| Address | 6-7-1, Minatojimaminami-machi, Chuo-ku, Kobe, Hyogo 650-0047, Japan | ||||||
| TEL | +81-78-569-8868 | ||||||
| akihiro.sasaki@riken.jp | |||||||
| Public contact | |||||||
| Name of contact person |
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| Organization | RIKEN Center for Biosystems Dynamics Research | ||||||
| Division name | Laboratory for Pathophysiological and Health Science | ||||||
| Zip code | 650-0047 | ||||||
| Address | 6-7-1, Minatojimaminami-machi, Chuo-ku, Kobe, Hyogo 650-0047, Japan | ||||||
| TEL | +81-78-569-8868 | ||||||
| Homepage URL | |||||||
| akihiro.sasaki@riken.jp | |||||||
| Sponsor | |
| Institute | RIKEN |
| Institute | |
| Department | |
| Funding Source | |
| Organization | Meiji Co., Ltd. |
| Organization | |
| Division | |
| Category of Funding Organization | Profit organization |
| Nationality of Funding Organization | |
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| IRB Contact (For public release) | |
| Organization | RIKEN Kobe Institute Safety Center |
| Address | 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan |
| Tel | 078-306-3036 |
| kobe-ankan@ml.riken.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 | |
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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 | |
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| Baseline Characteristics | |
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| Progress | |||||||
| Recruitment status | Completed | ||||||
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| Link to view the page | |
| URL(English) | https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000047518 |