UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062569
Receipt number R000071564
Scientific Title Effects of Continuous Soy Protein Intake on Body Composition: A Randomized, Double-Blind, Placebo-Controlled Trial
Date of disclosure of the study information 2026/08/13
Last modified on 2026/08/13 15:55:59

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Basic information

Public title

Effects of Continuous Soy Protein Intake on Body Composition

Acronym

Effects of Continuous Soy Protein Intake on Body Composition

Scientific Title

Effects of Continuous Soy Protein Intake on Body Composition: A Randomized, Double-Blind, Placebo-Controlled Trial

Scientific Title:Acronym

Effects of Continuous Soy Protein Intake on Body Composition: A Randomized, Double-Blind, Placebo-Controlled Trial

Region

Japan


Condition

Condition

Healthy adults

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the effects of 12-week continuous intake of a soy protein on waist circumference and body composition in healthy adults with a BMI of 25.0 to <30.0 kg/m2.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

waist circumference and body composition

Key secondary outcomes

1)Bowel movement diary
2)Hunger assessed by VAS
3)Total energy intake (3-day dietary record)
4)Fecal water content and short-chain fatty acid concentrations (acetate, propionate, butyrate, etc.)
5) Changes in gut microbiota composition assessed by 16S rRNA amplicon sequencing
6)Plasma GLP-1 and GIP


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

3

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Powdered beverage containing the control food

Interventions/Control_2

Powdered beverage containing test food 1

Interventions/Control_3

Powdered beverage containing test food 2

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

49 years-old >=

Gender

Male and Female

Key inclusion criteria

1)Men and women aged 20 to 49 years at the time of obtaining informed consent
2)Individuals with a BMI of 25.0 to <30.0 kg/m2
3)Individuals able to visit the study site on the scheduled visit dates
4)Individuals who have fully understood the purpose and content of the study and have provided written informed consent before the start of the study

Key exclusion criteria

1)History of serious hepatic, renal, cardiovascular, gastrointestinal, pulmonary, hematological, or metabolic disease.
2)Past or current drug or alcohol dependence.
3)Gastrointestinal disease or surgical history affecting digestion, absorption, or defecation.
4)Chronic disease requiring regular medication.
5)Regular use of medications/foods that may affect the study and cannot be restricted from consent onward. 6)Intake >=3 times/week of medications affecting the intestinal environment (laxatives, intestinal regulators, etc.) or foods (yogurt, lactic acid bacteria beverages, fermented foods, oligosaccharides, sugar alcohols, high-fiber foods/supplements).
7)Food allergy to the study food (soy).
8)Pregnant, lactating, or possibly pregnant during the study.
9)Excessive exercise, alcohol (>20 g pure alcohol/day, >=3 times/week), or smoking (>=21 cigarettes/day). 10)Suspected infection on virological/immunoserological tests at screening.
11)Body weight change of >=+/-5 kg within 3 months before screening. 12)Special dietary management for weight loss, or major increase in exercise, within 3 months before screening.
13)Extremely irregular lifestyle or diet (including night-shift workers).
14)Lifestyle expected to change substantially during the study.
15)Antibiotic use within 1 month before consent, or planned during the study.
16)Participation in another clinical trial within 1 month before consent, currently, or planned during the study.
17)Overseas travel planned during the study.
18)Judged unsuitable based on background survey responses.
19)Otherwise judged unsuitable by the principal or sub-investigator.

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Keita
Middle name
Last name Hirano

Organization

Fuji Oil Co., Ltd.

Division name

Research Institute for Creating the Future

Zip code

300-2497

Address

4-3 Kinunodai, Tsukubamirai, Ibaraki, Japan.

TEL

0297-52-6325

Email

hirano.keita@so.fujioil.co.jp


Public contact

Name of contact person

1st name Keita
Middle name
Last name Hirano

Organization

Fuji Oil Co., Ltd.

Division name

Research Institute for Creating the Future

Zip code

300-2497

Address

4-3 Kinunodai, Tsukubamirai, Ibaraki, Japan.

TEL

0297-52-6325

Homepage URL


Email

hirano.keita@so.fujioil.co.jp


Sponsor or person

Institute

Fuji Oil Co., Ltd.

Institute

Department

Personal name



Funding Source

Organization

Fuji Oil Co., Ltd.

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor

APO PLUS STATION CO., LTD.

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Fuji Oil IRB

Address

4-3 Kinunodai, Tsukubamirai, Ibaraki, Japan.

Tel

0297-52-6325

Email

fujioil.irb@so.fujioil.co.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 08 Month 13 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 10 Day

Date of IRB

2026 Year 08 Month 10 Day

Anticipated trial start date

2026 Year 09 Month 10 Day

Last follow-up date

2027 Year 01 Month 25 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 08 Month 13 Day

Last modified on

2026 Year 08 Month 13 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071564