UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000062398
Receipt number R000071415
Scientific Title Evaluation of Hydration-Related Physiological Responses Following Consumption of Functional Beverages
Date of disclosure of the study information 2026/08/01
Last modified on 2026/08/24 02:15:28

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Basic information

Public title

Evaluation of Hydration-Related Physiological Responses Following Consumption of Functional Beverages

Acronym

Study of hydration beverage effects

Scientific Title

Evaluation of Hydration-Related Physiological Responses Following Consumption of Functional Beverages

Scientific Title:Acronym

Study of hydration beverage effects

Region

Japan


Condition

Condition

NA

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To elucidate the effects of functional beverage consumption on body fluid balance.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Beverage hydration index

Key secondary outcomes

Cumulative urine output and net fluid balance


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

No need to know


Intervention

No. of arms

4

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

Investigational hydration beverage A

Interventions/Control_2

Investigational hydration beverage B

Interventions/Control_3

Investigational hydration beverage C

Interventions/Control_4

Investigational hydration beverage D

Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

30 years-old >

Gender

Male and Female

Key inclusion criteria

Healthy young adult men and women, approximately 18-30 years of age, who are considered healthy based on self-report and do not have any diagnosed disease or symptoms requiring medical treatment, regular hospital visits, or medical follow-up.

Key exclusion criteria

Participants will be excluded for any of the following:

1. current smoking or BMI >=25 kg/m2;
2. history of cardiovascular disease, bronchial asthma, gastrointestinal disease, epilepsy, kidney disease, kidney stones, kidney dysfunction, electrolyte abnormalities, or endocrine disorders (e.g., diabetes), or presence of cardiac arrhythmia;
3. medication use for a chronic disease or other ongoing medical condition;
4. previous vasovagal reaction to needle puncture or blood sampling, or inability to undergo capillary blood sampling;
5. consumption >=3 times/week of foods for specified health uses, foods with functional claims, health foods, or supplements that may affect study outcomes (e.g., products containing capsaicin or spices or affecting blood flow, body temperature, or sweating);
6. alcohol intake >2 standard drinks/day or caffeine intake >400 mg/day;
7. relevant medication or food allergies;
8. current participation in a clinical study involving pharmaceuticals or health foods, completion of such a study within the previous 4 weeks, or planned participation in another clinical study after consent;
9. donation of blood components or 200 mL whole blood within 1 month, donation of 400 mL whole blood within 3 months, or total blood collection during the previous 12 months plus planned study collection >1200 mL;
10. pregnancy, lactation, or planned pregnancy during the study;
11. vomiting, diarrhea, or fever within 2 weeks before screening;
12. inability to comply with alcohol/caffeine washout requirements;
13. initiation or change of hormonal contraceptives within 3 months before screening; or
14. any other reason considered unsuitable by the principal investigator.

Target sample size

25


Research contact person

Name of lead principal investigator

1st name Tatsuro
Middle name
Last name Amano

Organization

Niigata University

Division name

Faculty of Education

Zip code

950-2181

Address

8050 Igarashi-Ninocho, Nishiku, Niigata

TEL

0252627161

Email

amano@ed.niigata-u.ac.jp


Public contact

Name of contact person

1st name Tatsuro
Middle name
Last name Amano

Organization

Niigata University

Division name

Faculty of Education

Zip code

950-2181

Address

8050 Igarashi-Ninocho, Nishiku, Niigata

TEL

0252627161

Homepage URL


Email

amano@ed.niigata-u.ac.jp


Sponsor or person

Institute

Niigata University

Institute

Department

Personal name

Tatsuro Amano


Funding Source

Organization

The Coca-Cola Company

Organization

Division

Category of Funding Organization

Outside Japan

Nationality of Funding Organization

The United States


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

The human ethical committee of Niigata University

Address

8050, Igarashi 2, Nishi-ku, Niigata, Niigata

Tel

025-227-2625

Email

ethics@adm.niigata-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

新潟大学教育学部(新潟県)/Faculty of Education, Niigata University, Niigata


Other administrative information

Date of disclosure of the study information

2026 Year 08 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

Open public recruiting

Date of protocol fixation

2026 Year 07 Month 07 Day

Date of IRB

2026 Year 07 Month 07 Day

Anticipated trial start date

2026 Year 08 Month 03 Day

Last follow-up date

2026 Year 12 Month 15 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 07 Month 30 Day

Last modified on

2026 Year 08 Month 24 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071415