| Recruitment status | Completed |
| Unique ID issued by UMIN | UMIN000022301 |
| Receipt No. | R000025638 |
| Official scientific title of the study | Observational study of placebo effect for a variable factor between individuals-reactive character mediated serotonin transporter genotype |
| Date of disclosure of the study information | 2017/08/31 |
| Last modified on | 2016/05/13 (Ver. 1) |
| Basic information | ||
| Official scientific title of the study | Observational study of placebo effect for a variable factor between individuals-reactive character mediated serotonin transporter genotype | |
| Title of the study (Brief title) | placebo effect for a variable factor between individuals | |
| Region |
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| Condition | ||
| Condition | Hearthy volunteers | |
| Classification by specialty |
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| Classification by malignancy | Others | |
| Genomic information | YES | |
| Objectives | |
| Narrative objectives1 | Observational study of placebo effect for a variable factor between individuals - reactive character mediated serotonin transporter genotyp |
| Basic objectives2 | Pharmacodynamics |
| Basic objectives -Others | |
| Trial characteristics_1 | Confirmatory |
| Trial characteristics_2 | Pragmatic |
| Developmental phase | Not applicable |
| Assessment | |
| Primary outcomes | Finding of responders and non-responders for placebo effect by gene polymorphism of serotonine trasporter |
| Key secondary outcomes | Finding of cognitive indicator of placebo reaction by brain prefrontal cortex activity |
| In outcomes field, the entry of just a few words such as "safety" or "efficiency" will not be accepted. Specify the name of outcome measures, including the time when you plan to measure. Usually, only one primary outcome is accepted. Write the other outcomes in "secondary outcomes" field. |
| Base | |
| Study type | Interventional |
| Study design | |
| Basic design | Parallel |
| Randomization | Randomized |
| Randomization unit | Individual |
| Blinding | Double blind -all involved are blinded |
| Control | Active |
| Stratification | YES |
| Dynamic allocation | NO |
| Institution consideration | Institution is considered as a block. |
| Blocking | YES |
| Concealment | Numbered container method |
| Intervention | ||
| No. of arms | 2 | |
| Purpose of intervention | Treatment | |
| Type of intervention |
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| Interventions/Control_1 | placebo drug (lactose) | |
| Interventions/Control_2 | caffine | |
| Interventions/Control_3 | ||
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| Interventions/Control_5 | ||
| Interventions/Control_6 | ||
| Interventions/Control_7 | ||
| Interventions/Control_8 | ||
| Interventions/Control_9 | ||
| Interventions/Control_10 | ||
| In interventions field, include the details of interventions, such as duration, amount, and frequency. If the intervention includes prescription or use of medical devices, duration is required. |
| Eligibility | ||||
| Age-lower limit |
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| Age-upper limit |
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| Gender | Male and Female | |||
| Key inclusion criteria | Participants who Candidates received a doctor's examination and physical examination(height, weight, temperature, and blood pressure) | |||
| Key exclusion criteria | Participants are selected by doctor | |||
| Target sample size | 42 | |||
| Research contact person | |
| Name of lead principal investigator | Emi Nakashima |
| Organization | Faculty of Pharmacy, Keio University |
| Division name | Division of Pharmaceutics |
| Address | 1-5-30, Shibako-en, Minato-ku, Tokyo |
| TEL | 03-5400-2660 |
| nakashima-em@pha.keio.ac.jp | |
| Public contact | |
| Name of contact person | Minae Isawa |
| Organization | Faculty of Pharmacy, Keio University |
| Division name | Division of Pharmaceutics |
| Address | 1-5-30, Shibako-en, Minato-ku, Tokyo |
| TEL | 03-5400-2660 |
| Homepage URL | |
| isawa-mn@pha.keio.ac.jp | |
| Sponsor | |
| Institute | Faculty of Pharmacy, Keio University
Division of Pharmaceutics |
| Institute | |
| Department | |
| Sponsor means an organization that is responsible for plan, deployment and report of the research including funding management. It doesn't mean funding agency". Therefore, all clinical trial should have the one. |
| Funding Source | |
| Organization | Grants-in-Aid for Scientific Research from Japan Society for the Promotion of Science |
| Organization | |
| Division | |
| Category of Funding Organization | Japanese Governmental office |
| Nationality of Funding Organization | |
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| Co-sponsor | |
| Name of secondary funder(s) | |
| Secondary IDs | |
| Secondary IDs | NO |
| Study ID_1 | |
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| IND to MHLW | |
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| Progress | |||||||
| Recruitment status | Completed | ||||||
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| Related information | |
| URL releasing protocol | |
| Publication of results | Unpublished |
| URL releasing results | |
| Results | |
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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=R000025638 |