| Recruitment status | Completed |
| Unique ID issued by UMIN | UMIN000039370 |
| Receipt No. | R000044894 |
| Scientific Title | Effects of consumption of the test food on eye functions in healthy Japanese subjects: A randomized double-blind placebo-controlled trial |
| Date of disclosure of the study information | 2020/02/03 |
| Last modified on | 2021/05/31 (Ver. 6) |
| Basic information | ||
| Public title | Effects of consumption of the test food on eye functions in healthy Japanese subjects | |
| Acronym | Effects of consumption of the test food on eye functions in healthy Japanese subjects | |
| Scientific Title | Effects of consumption of the test food on eye functions in healthy Japanese subjects: A randomized double-blind placebo-controlled trial | |
| Scientific Title:Acronym | Effects of consumption of the test food on eye functions in healthy Japanese subjects | |
| Region |
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| Condition | |||
| Condition | Healthy Japanese subjects | ||
| Classification by specialty |
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| Classification by malignancy | Others | ||
| Genomic information | NO | ||
| Objectives | |
| Narrative objectives1 | To verify the effects of consumption of the test food on eye functions in healthy Japanese subjects. |
| Basic objectives2 | Efficacy |
| Basic objectives -Others | |
| Trial characteristics_1 | Confirmatory |
| Trial characteristics_2 | Pragmatic |
| Developmental phase | Not applicable |
| Assessment | |
| Primary outcomes | The amount of change of percentage of pupillary response (average of both eyes) before and after VDT load between at examination before the start of test-food consumption (screening) and after four-week test-food consumption (4w). |
| Key secondary outcomes | 1. The measured value of percentage of pupillary response (average of both eyes) before VDT load and after VDT load at examination after 4w
2-1. The measured value of percentage of pupillary response (average of both eyes, dominant eye, non-dominant eye) before VDT load and after VDT load at examination after 4w 2-2. The amount of change of percentage of pupillary response (average of both eyes) before VDT load and after VDT load between at screening and after 4w 3-1. The measured value of flicker value (average of both eyes, dominant eye, non-dominant eye) before VDT load, after VDT load, and before and after VTD load at examination after 4w 3-2. The amount of change of flicker value (average of both eyes, dominant eye, non-dominant eye) before VDT load, after VDT load, and before and after VTD load between at screening and after 4w 4-1. The measured value of "blood flow velocity", "visibility of vessels", "density of vessels", "diameter of vessels", "distance between vessels", "length of vessels" and "shape of vessels" before VDT load, after VDT load, and before and after VTD load at examination after 4w 4-2. The amount of change of "blood flow velocity", "visibility of vessels", "density of vessels", "diameter of vessels", "distance between vessels", "length of vessels" and "shape of vessels" before VDT load, after VDT load, and before and after VTD load between at screening and after 4w 5. The ratio of number of subjects of each shape of blood vessel after 4w 6-1. The measured value of subjective symptoms before VDT load, after VDT load, and before and after VTD load at examination after 4w 6-2. The amount of change of subjective symptoms before VDT load, after VDT load, and before and after VTD load between at screening and after 4w 7. The ratio of number of subjects of improving subjective symptoms before and after VTD load after 4w |
| Base | |
| Study type | Interventional |
| Study design | |
| Basic design | Parallel |
| Randomization | Randomized |
| Randomization unit | Individual |
| Blinding | Double blind -all involved are blinded |
| Control | Placebo |
| Stratification | YES |
| Dynamic allocation | NO |
| Institution consideration | Institution is not considered as adjustment factor. |
| Blocking | NO |
| Concealment | Central registration |
| Intervention | ||
| No. of arms | 2 | |
| Purpose of intervention | Prevention | |
| Type of intervention |
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| Interventions/Control_1 | Duration: Four weeks
Test food: Pintokurukashisu Administration: Take three tablets once per day at any time between lunch and dinner with water without chewing. * If you forget to take the test food, take it as soon as you remember within the day. |
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| Interventions/Control_2 | Duration: Four weeks
Test food: Placebo Administration: Take three tablets once per day at any time between lunch and dinner with water without chewing. * If you forget to take the test food, take it as soon as you remember within the day. |
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| 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. Healthy Japanese subjects
2. Subjects who are experiencing eye fatigue when they work on Visual Display Terminals (VDT) operation 3. Subjects who have corrected vision of both eyes with 1.0 or more and who do not use contact lenses, or who can switch to using eye glasses during the test period 4. Subjects who are judged as eligible to participate in the study by the physician 5. Subjects whose percentage of pupil constriction (average of both eyes) dropped at a relatively larger rate before and after VDT load at screening and examination before ingestion |
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| Key exclusion criteria | 1. Subjects who are undergoing medical treatment or have a medical history of malignant tumor, heart failure, and myocardial infarction
2. Subjects who have a pacemaker or an implantable cardioverter defibrillator (ICD) 3. Currently undergoing treatment for any of the following chronic disease: cardiac arrhythmia, liver disorder, kidney disorder, cerebrovascular disorder, rheumatism, diabetes mellitus, dyslipidemia, hypertension, hemorrhagic disorder, intestinal disorder, or any other chronic diseases 4. Subjects who were diagnosed as presbyopia or are aware of presbyopia 5. Subjects who have eye diseases, entropion or trichiasis 6. Subjects who use eye drops for treatment of eye diseases 7. Subjects who have ametropia and do not be treated orthoptics properly 8. Subjects who were treated with LASIK 9. Subjects who are strong astigmatism 10. Subjects who are experiencing eye fatigue causing by nerve function and others (except accommodative function) 11. Subjects who use or take "Foods for Specified Health Uses", "Foods with Functional Claims", or other functional food/beverage in daily 12. Currently taking medicines (include herbal medicines) and supplements 13. Subjects who regularly take or may take antihypertensives, antiplatelet drug or anticoagulants 14. Subjects who may use anesthetics during the test period, such as surgery 15. Subjects who are allergic to medicines and/or the test food related products 16. Subjects who are pregnant, breast-feeding, and planning to become pregnant 17. Subjects who have been enrolled in other clinical trials within the last three months before the agreement to participate in this trial or plan to participate another trial during this trial 18 Subjects who are judged as ineligible to participate in the study by the physician |
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| Target sample size | 60 | |||
| Research contact person | |||||||
| Name of lead principal investigator |
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| Organization | ORTHOMEDICO Inc. | ||||||
| Division name | CEO | ||||||
| Zip code | 112-0002 | ||||||
| Address | 2F Sumitomo Fudosan Korakuen Bldg., 1-4-1, Koishikawa, Bunkyo-ku, Tokyo, Japan. | ||||||
| TEL | 03-3818-0610 | ||||||
| kazu@orthomedico.jp | |||||||
| Public contact | |||||||
| Name of contact person |
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| Organization | ORTHOMEDICO Inc. | ||||||
| Division name | R&D Department | ||||||
| Zip code | 112-0002 | ||||||
| Address | 2F Sumitomo Fudosan Korakuen Bldg., 1-4-1, Koishikawa, Bunkyo-ku, Tokyo, Japan. | ||||||
| TEL | 03-3818-0610 | ||||||
| Homepage URL | |||||||
| nao@orthomedico.jp | |||||||
| Sponsor | |
| Institute | ORTHOMEDICO Inc. |
| Institute | |
| Department | |
| Funding Source | |
| Organization | YASOUKOUSO.CO., Ltd |
| Organization | |
| Division | |
| Category of Funding Organization | Profit organization |
| Nationality of Funding Organization | |
| Other related organizations | |
| Co-sponsor | Ario Nishiarai Eye Clinic
Medical Corporation Seishinkai, Takara Clinic |
| Name of secondary funder(s) | |
| IRB Contact (For public release) | |
| Organization | the ethical committee of the Takara Clinic, Medical Corporation Seishinkai |
| Address | 9F Taisei Building, 2-3-2, Higashi-gotanda, Shinagawa-ku, Tokyo, Japan. |
| Tel | 03-5793-3623 |
| info@takara-clinic.com | |
| 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 | アリオ西新井クリニック眼科 (東京都)
Ario Nishiarai Eye Clinic (Tokyo, Japan) 医療法人社団盛心会 タカラクリニック (東京都) Medical Corporation Seishinkai, Takara Clinic (Tokyo, Japan) |
| Other administrative information | |||||||
| Date of disclosure of the study information |
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| Related information | |
| URL releasing protocol | Unpublished |
| Publication of results | Published |
| Result | |||||||
| URL related to results and publications | http://www.newfoodindustry.com/cn7/2101.html | ||||||
| Number of participants that the trial has enrolled | 66 | ||||||
| Results | Kanai T, Takahashi Y, Takara T. Effects of the consumption of "Pintokuru-cassis" foods containing cassis extract on eye functions in healthy Japanese subjects: A randomized, placebo-controlled, double-blind, parallel-group comparison study. New Food Indust. 2021; 63(1): 3-21
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| Results date posted |
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| Results Delayed | |||||||
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| Date of the first journal publication of results |
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| Baseline Characteristics | Refer to the paper | ||||||
| Participant flow | Refer to the paper | ||||||
| Adverse events | Refer to the paper | ||||||
| Outcome measures | Refer to the paper | ||||||
| Plan to share IPD | Undecided | ||||||
| IPD sharing Plan description | To require consultation among related companies | ||||||
| Progress | |||||||
| Recruitment status | Completed | ||||||
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| Other | |
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| Management information | |||||||
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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=R000044894 |