UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000024015
Receipt number R000027652
Scientific Title Placebo-controlled , double-blind, randomized controlled trials that verify effects of caffeine to university students' concentration
Date of disclosure of the study information 2016/10/31
Last modified on 2017/12/15 17:56:38

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Basic information

Public title


Placebo-controlled , double-blind, randomized controlled trials that verify effects of caffeine to university students' concentration

Acronym

caffeine trial for university students

Scientific Title


Placebo-controlled , double-blind, randomized controlled trials that verify effects of caffeine to university students' concentration

Scientific Title:Acronym

caffeine trial for university students

Region

Japan


Condition

Condition

Adult

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Verify effect of caffeine to university students' concentration.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Accuracy and speed of calculation

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

Regular Coffee 150ml, 1time

Interventions/Control_2

Decaf 150ml, 1time

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

20 years-old <=

Age-upper limit

60 years-old >

Gender

Male and Female

Key inclusion criteria

University Students of Keio Univesity, School of Medicine

Key exclusion criteria

Subjetct who cannot drink or have not drunk coffee

Target sample size

70


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Toru Takebayashi

Organization

Keio University

Division name

School of Medicine

Zip code


Address

35 Shinanomachi, Shinjyuku-ku

TEL

0353633758

Email

ayanotakeuchi@keio.jp


Public contact

Name of contact person

1st name
Middle name
Last name Ayano Takeuchi

Organization

Keio University

Division name

School of Medicine

Zip code


Address

35 Shinanomachi, Shinjyuku-ku

TEL

0353633758

Homepage URL


Email

ayanotakeuchi@keio.jp


Sponsor or person

Institute

Keio University

Institute

Department

Personal name



Funding Source

Organization

Keio University

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



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



Other administrative information

Date of disclosure of the study information

2016 Year 10 Month 31 Day


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

Preinitiation

Date of protocol fixation

2018 Year 10 Month 13 Day

Date of IRB


Anticipated trial start date

2018 Year 10 Month 15 Day

Last follow-up date


Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2016 Year 09 Month 12 Day

Last modified on

2017 Year 12 Month 15 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000027652


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name