UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000010360
Receipt number R000012118
Scientific Title Influence of polymorphisms of adenosine A2 receptor and dopamine D2 receptor on mental calculations, blood pressure and pulse rate after intake of caffeine: a double-blind randomized placebo-controlled clinical trial.
Date of disclosure of the study information 2013/04/01
Last modified on 2017/09/19 17:06:33

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Basic information

Public title

Influence of polymorphisms of adenosine A2 receptor and dopamine D2 receptor on mental calculations, blood pressure and pulse rate after intake of caffeine: a double-blind randomized placebo-controlled clinical trial.

Acronym

Influence of polymorphisms of adenosine A2 receptor and dopamine D2 receptor on the effect of caffeine

Scientific Title

Influence of polymorphisms of adenosine A2 receptor and dopamine D2 receptor on mental calculations, blood pressure and pulse rate after intake of caffeine: a double-blind randomized placebo-controlled clinical trial.

Scientific Title:Acronym

Influence of polymorphisms of adenosine A2 receptor and dopamine D2 receptor on the effect of caffeine

Region

Japan


Condition

Condition

Effect of caffeine

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

YES


Objectives

Narrative objectives1

To reveal the influence of polymorphisms of adenosine A2 receptor and dopamine D2 receptor on effect of caffeine 200 mg on mental calculation ability, blood pressure and pulse rate.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Explanatory

Developmental phase

Not applicable


Assessment

Primary outcomes

Change of the accurate number of mental calculation after intake caffeine 200 mg compared to decafe

Key secondary outcomes

Change of blood pressure and pulse rate after intake caffeine 200 mg compared to decafe


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

intake coffee 150 mL with caffeine 200mg

Interventions/Control_2

intake coffee 150 mL without caffeine

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


Not applicable

Gender

Male and Female

Key inclusion criteria

Healthy adult volunteers

Key exclusion criteria

1. cardiovascular disease that should be treated
2. severe liver disease
3. severe renal disease
4. pregnant women and women suspected of being pregnant
5. severe allergic reaction and allergic reaction to caffeine
6. gastric ulcer
7. glaucoma
8. On medical treatment
9. Not appropriate to this study by other reasons

Target sample size

500


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Toshiyuki Sasaguri

Organization

Faculty of Medical Science, Kyushu University

Division name

Department of Clinical Pharmacology

Zip code


Address

3-1-1 Maidashi Higashi-ku Fukuoka

TEL

+81-92-642-6082

Email

sasaguri@clipharm.med.kyushu-u.ac.jp


Public contact

Name of contact person

1st name
Middle name
Last name Tatsuya Yoshihara

Organization

Faculty of Medical Sciences, Kyushu University

Division name

Department of Clinical Pharmacology

Zip code


Address

3-1-1 Maidashi Higashi-ku Fukuoka

TEL

+81-92-642-6082

Homepage URL


Email

tatsuya@clipharm.med.kyushu-u.ac.jp


Sponsor or person

Institute

Department of Clinical Pharmacology, Faculty of Medical Science, Kyushu University

Institute

Department

Personal name



Funding Source

Organization

Self funding

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

2013 Year 04 Month 01 Day


Related information

URL releasing protocol


Publication of results

Published


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

2013 Year 03 Month 01 Day

Date of IRB


Anticipated trial start date

2013 Year 04 Month 01 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

2013 Year 03 Month 29 Day

Last modified on

2017 Year 09 Month 19 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000012118


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name