UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000063526
Receipt number R000072688
Scientific Title A Study to Evaluate the Effects of a Functional Beverage containing Lemon Juice on Cognitive Task-Induced Fatigue
Date of disclosure of the study information 2026/11/09
Last modified on 2026/11/05 16:12:12

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

A Study to Evaluate the Effects of a Functional Beverage containing Lemon Juice on Cognitive Task-Induced Fatigue

Acronym

A Study to Evaluate the Effects of a Functional Beverage containing Lemon Juice on Cognitive Task-Induced Fatigue

Scientific Title

A Study to Evaluate the Effects of a Functional Beverage containing Lemon Juice on Cognitive Task-Induced Fatigue

Scientific Title:Acronym

A Study to Evaluate the Effects of a Functional Beverage containing Lemon Juice on Cognitive Task-Induced Fatigue

Region

Japan


Condition

Condition

Healthy Adult

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the effect of a functional beverage on alleviating cognitive fatigue during computerized task performance.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

VAS-based subjective assessment of fatigue and related symptoms

Key secondary outcomes

Change in fatigue-inducing task performance
Changes in autonomic nerve activity
Changes in salivary stress markers
STAI scores
Blood pressure


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


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Ingestion of the Test beverage

Interventions/Control_2

Ingestion of the Control beverage

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

Female

Key inclusion criteria

1. Healthy female aged 20 to 59 years
2. Individuals who understand the informed consent information and are able to provide voluntary written consent

Key exclusion criteria

1. Individuals employed by a food or pharmaceutical company.
2. Individuals with a history of neurological or cardiovascular disease, renal failure, or any other serious illness.
3. Individuals with a history of seizures (such as loss of consciousness, coma, or convulsions) due to neurological disorders.
4. Individuals currently receiving ongoing treatment or taking medication for any medical condition.
5. Individuals who have difficulty performing essential evaluation items in this study due to hearing or visual impairments.
6. Individuals with olfactory or taste disorders.
7. Individuals who are currently pregnant or breastfeeding.
8. Individuals with food allergies.
9. Individuals who dislike sour tastes.
10. Individuals who regularly consumed foods containing functional ingredients at least three times per week during the month prior to providing informed consent.
11. Individuals who consumed foods containing functional ingredients between 8:00 p.m. on the day before the study and the start of the study procedures.
12. Individuals who are currently participating in another clinical trial or who participated in another clinical trial within one month prior to providing informed consent.
13. Individuals judged as inappropriate for participation by the principal investigator.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Yasuyoshi
Middle name
Last name Watanabe

Organization

Integrated Health Science Co., Ltd.

Division name

Research Division

Zip code

530-0011

Address

JAM-OFFICE 5-D, JAM BASE, 5F, GRAND GREEN OSAKA North 6-38 Ofukacho, Kita-ku, Osaka, JAPAN

TEL

080-2466-6100

Email

contact@integhs.jp


Public contact

Name of contact person

1st name Kyosuke
Middle name
Last name Watanabe

Organization

Integrated Health Science Co., Ltd.

Division name

Research Division

Zip code

530-0011

Address

JAM-OFFICE 5-D, JAM BASE, 5F, GRAND GREEN OSAKA North 6-38 Ofukacho, Kita-ku, Osaka, JAPAN

TEL

080-2466-6100

Homepage URL


Email

contact@integhs.jp


Sponsor or person

Institute

Integrated Health Science Co., Ltd.

Institute

Department

Personal name



Funding Source

Organization

POKKA SAPPORO Food & Beverage 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

The Ethics Committee of Umekita Digital Health

Address

JAM-OFFICE 5-D, JAM BASE, 5F, GRAND GREEN OSAKA North 6-38 Ofukacho, Kita-ku, Osaka, JAPAN

Tel

080-2466-6100

Email

hrerc@integhs.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



Other administrative information

Date of disclosure of the study information

2026 Year 11 Month 09 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

2026 Year 08 Month 18 Day

Date of IRB

2026 Year 08 Month 19 Day

Anticipated trial start date

2026 Year 11 Month 09 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

2026 Year 11 Month 05 Day

Last modified on

2026 Year 11 Month 05 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072688