UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059186
Receipt number R000067675
Scientific Title Reexamination of the correlation between caffeine concentrations in blood and saliva
Date of disclosure of the study information 2025/10/01
Last modified on 2025/09/25 16:12:28

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Basic information

Public title

Reexamination of the correlation between caffeine concentrations in blood and saliva

Acronym

Reexamination of the correlation between caffeine concentrations in blood and saliva

Scientific Title

Reexamination of the correlation between caffeine concentrations in blood and saliva

Scientific Title:Acronym

Reexamination of the correlation between caffeine concentrations in blood and saliva

Region

Japan


Condition

Condition

Healthy adult men and women

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To verify the correlation between caffeine concentrations in blood and saliva when caffeine is ingested

Basic objectives2

Pharmacokinetics

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Verification of the correlation between caffeine concentrations in blood and saliva

Key secondary outcomes

Individual differences in peak concentration time among caffeine drinking groups


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

A beverage containing 150 mg of caffeine in 200 mL of water

Interventions/Control_2


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

Healthy males and females aged 20 to 60 years

Key exclusion criteria

None

Target sample size

10


Research contact person

Name of lead principal investigator

1st name MASAKI
Middle name
Last name MOGI

Organization

Graduate School of Medicine, Ehime University

Division name

Department of Pharmacology

Zip code

791-0295

Address

Shizukawa, Tohon, Ehime 791-0295, Japan

TEL

0899605260

Email

mogi.masaki.me@ehime-u.ac.jp


Public contact

Name of contact person

1st name Yumi
Middle name
Last name Hosoki

Organization

Glico Nutrition Co., Ltd.

Division name

R&D Center

Zip code

555-8502

Address

4-6-5, Utajima, Nishiyodogawa-Ku, Osaka, 555-8502, Japan

TEL

050-1744-4293

Homepage URL


Email

yumi.hosogi@glico.com


Sponsor or person

Institute

Department of Pharmacology, Graduate School of Medicine, Ehime University

Institute

Department

Personal name



Funding Source

Organization

Glico Nutrition Co., Ltd.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ehime University Clinical Research Review Committee

Address

Shizukawa, Tohon, Ehime 791-0295, Japan

Tel

089-960-5172

Email

rinri@m.ehime-u.ac.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



Institutions

Institutions

愛媛大学大学院医学系研究科薬理学


Other administrative information

Date of disclosure of the study information

2025 Year 10 Month 01 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

2025 Year 08 Month 21 Day

Date of IRB

2025 Year 09 Month 22 Day

Anticipated trial start date

2025 Year 10 Month 01 Day

Last follow-up date

2026 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 09 Month 25 Day

Last modified on

2025 Year 09 Month 25 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067675