UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000063026
Receipt number R000072146
Scientific Title Effects of Gut Microbiota Modulation on Body Composition in Middle-Aged and Older Adults
Date of disclosure of the study information 2026/09/23
Last modified on 2026/09/23 12:26:47

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Basic information

Public title

Does Fructan Induced Modulation of the Gut Microbiota Improve Body Composition in Middle Aged and Older Adults?

Acronym

Association Between Fructan-Induced Gut Microbiota Modulation and Improvements in Body Composition

Scientific Title

Effects of Gut Microbiota Modulation on Body Composition in Middle-Aged and Older Adults

Scientific Title:Acronym

Association Between Fructan-Induced Gut Microbiota Modulation and Improvements in Body Composition

Region

Japan


Condition

Condition

Middle-Aged and Older Adults

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

YES


Objectives

Narrative objectives1

In middle-aged and older adults, we will analyze the gut microbiota and assess health-related outcomes, including body composition, physical function, depressive symptoms, and sleep status, to evaluate the effects of consuming a sweetener containing the prebiotics 1-kestose and inulin.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Participants in the prebiotic group will consume 17 g of an oligosaccharide-containing sweetener (3.4 g of 1-kestose and 8.5 g of inulin; 33 kcal) once daily with breakfast, while those in the placebo group will consume 10 g of maltose (33 kcal) once daily with breakfast. The intervention will continue for 8 weeks.

All participants will also be instructed to perform a prescribed 15-minute exercise program, consisting of stretching,calisthenics, amd aerobic exercises every day.

Before and after the intervention, body composition and physical function will be assessed, and questionnaires will be administered to evaluate depressive symptoms, sleep status, dietary habits, and exercise habits.

Key secondary outcomes

To assess genetic predisposition, polymorphisms in the beta-3 adrenergic receptor gene (ADRB3), which is involved in lipolysis; the uncoupling protein 3 gene (UCP3), which is associated with energy metabolism; and the mechanistic target of rapamycin gene (MTOR, formerly FRAP1), which is involved in muscle protein synthesis, will be analyzed. These genetic factors will be examined to explore interindividual differences in the effects of prebiotic supplementation on body composition.


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

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Food

Interventions/Control_1

Participants in the prebiotic group will consume 17 g of an oligosaccharide-containing sweetener (3.4 g of 1-kestose and 8.5 g of inulin; 33 kcal) once daily with breakfast. The intervention will continue for 8 weeks.
All participants will also be instructed to perform a prescribed 15-minute exercise program, consisting of stretching,calisthenics, and aerobic exercises every day.

Interventions/Control_2

Participants in the placebo group will consume 10 g of maltose (33 kcal) once daily with breakfast. The intervention will continue for 8 weeks.All participants will also be instructed to perform a prescribed 15-minute exercise program, consisting of stretching,calisthenics, and aerobic exercises every day.

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

40 years-old <=

Age-upper limit

90 years-old >

Gender

Male and Female

Key inclusion criteria

Participants without a physician-diagnosed gastrointestinal disease who provide written informed consent will be included.

Key exclusion criteria

Individuals with a physician-diagnosed gastrointestinal disease or those currently taking antibiotics will be excluded.

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Kotoyo
Middle name
Last name Fujiki

Organization

Nagoya University of Arts and Sciences

Division name

Department of Nutrition

Zip code

470-0196

Address

57 Takenoyama Iwasaki-cho Nisshin, Aichi, Japan

TEL

0561-75-2573

Email

kfujiki@nuas.ac.jp


Public contact

Name of contact person

1st name Kotoyo
Middle name
Last name Fujiki

Organization

Nagoya University of Arts and Sciences

Division name

Department of Nutrition

Zip code

470-0196

Address

57 Takenoyama Iwasaki-cho Nisshin, Aichi, Japan

TEL

0561-75-2573

Homepage URL


Email

kfujiki@nuas.ac.jp


Sponsor or person

Institute

Nagoya University of Arts and Sciences

Institute

Department

Personal name

Kotoyo Fujiki


Funding Source

Organization

Nagoya University of Arts and Sciences

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Nagoya University of Arts and Sciences

Address

57 Takenoyama Iwasaki-cho Nisshin, Aichi, Japan

Tel

0561-75-2573

Email

kfujiki@nuas.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

名古屋学芸大学


Other administrative information

Date of disclosure of the study information

2026 Year 09 Month 23 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 08 Month 26 Day

Date of IRB

2026 Year 08 Month 27 Day

Anticipated trial start date

2026 Year 08 Month 26 Day

Last follow-up date

2026 Year 12 Month 04 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 09 Month 23 Day

Last modified on

2026 Year 09 Month 23 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072146