UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000050437
Receipt number R000057445
Scientific Title Effectiveness of the Brief Online Intermittent Fasting Program for Weight Loss: A Randomized Controlled Pilot Study
Date of disclosure of the study information 2023/02/27
Last modified on 2024/02/02 10:45:57

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Basic information

Public title

Online weight-loss trial of intermittent fasting

Acronym

Online IF Study

Scientific Title

Effectiveness of the Brief Online Intermittent Fasting Program for Weight Loss: A Randomized Controlled Pilot Study

Scientific Title:Acronym

Online IF study

Region

Japan


Condition

Condition

Obesity and Overweight

Classification by specialty

Medicine in general Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the effectiveness, feasibility and safety of the Brief Online Intermittent Fasting Program for weight-loss, as a pilot study of a randomized controlled trial.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Change in body weight after 12 week-intervention

Key secondary outcomes

Effectiveness:
- Change in BMI
- Change in body fat percentage
- Change in fat mass
- Change in fat-free mass
- Change in muscle mass
- Change in blood pressure (SBP and DBP)
- Change in HbA1c
- Change in triglyceride
- Change in total cholesterol
- Change in HDL cholesterol
- Change in LDL cholesterol
- Change in QOL score (physical and mental 2-component summary score) measured by SF-12v2 Japanese ver
- Change in Total Physical Activity measured by IPA-Q short ver
- Read status of weekly messages sent via mobile app

Feasibility:
- Follow-up proportion of each group
- Adherence to each intervention

Safety Analysis:
- Self-reported adverse events
- Within Group Difference in QOL score

Exploratory Analysis:
- Change in self-reported body weight recorded via mobile app (exploratory)
- Change in self-reported number of steps recorded via mobile app (exploratory)
- Comments and feedbacks to the IF program measured by questionaire


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -but assessor(s) are blinded

Control

Active

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food Behavior,custom

Interventions/Control_1

Instruction to the brief online intermittent fasting program (about 10 minutes) at beginning.
Weekly 1 day fasting - participants intake around 400kcal by provided fasting food.
Weekly message via app: encouragement and reminder of fasting

Interventions/Control_2

Minimal care
- Weekly message via app: general advices on eating, exercise, sleep

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

65 years-old >

Gender

Male and Female

Key inclusion criteria

Generally healthy adults who
aged 20 to 65
whose BMI 23 or more.
can take regular 1 day off.
can communicate in Japanese.
have access to the Internet and can use mobile app during the study.
can visit Kyoto university at baseline and 12th week for the outcome measurement.
can have blood drawn and fast before at the measurements.
understand the study content and are willing to join the program.

Key exclusion criteria

BMI 35 or more.
have history of heart disease, kidney disease, and other major medical conditions.
medication of anti-diabetics.
smoker or heavy drinker - average 4 or more drinks per day, or 14 or more drinks per week.
night-shift worker.
possibility of moving, job change, travel abroad and other substantial change of living condition.
lactating, pregnant, or plan to be pregnant during the study.
men with fat percentage of 10% or less, or women with fat percentage of 20% or less.
professional or amateur athletes.
commitment to athletic or physical training of 12 hours or more per week.
other reasons recognized as inappropriate by the researcher.

Target sample size

40


Research contact person

Name of lead principal investigator

1st name Taku
Middle name
Last name Iwami

Organization

Graduate School of Medicine of Kyoto University

Division name

Department of Preventive Services, School of Public Health.

Zip code

606-8501

Address

Yoshida-Konoe-cho, Sakyo-ku, Kyoto

TEL

075-753-2426

Email

iwami.taku.8w@kyoto-u.ac.jp


Public contact

Name of contact person

1st name Tomonari
Middle name
Last name Shimamoto

Organization

Graduate School of Medicine of Kyoto University

Division name

Department of Preventive Services, School of Public Health.

Zip code

606-8501

Address

Yoshida-Konoe-cho, Sakyo-ku, Kyoto

TEL

075-753-2426

Homepage URL

https://yobou.med.kyoto-u.ac.jp/onlineifstudy_pilot/

Email

onlineifstudy@yobou.med.kyoto-u.ac.jp


Sponsor or person

Institute

Kyoto University

Institute

Department

Personal name



Funding Source

Organization

Ritsuan STC Inc

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor

Department of Health and Nutrition, The University of Shimane.
Faculty of Home Economics, Department of Food Science, Otsuma Women's University.

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto University Graduate School and Faculty of Medicine, Ethics Committee

Address

Yoshida-Konoe-cho, Sakyo--ku, Kyoto

Tel

075-753-4680

Email

ethcom@kuhp.kyoto-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

京都大学大学院医学研究科(京都府)
医療法人大和会 日下病院(三重県)
(株)コールドストレージ・ジャパン(東京都)
(株)バディトレ(東京都)


Other administrative information

Date of disclosure of the study information

2023 Year 02 Month 27 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

Completed

Date of protocol fixation

2023 Year 05 Month 01 Day

Date of IRB

2023 Year 07 Month 20 Day

Anticipated trial start date

2023 Year 07 Month 20 Day

Last follow-up date

2024 Year 01 Month 12 Day

Date of closure to data entry

2024 Year 01 Month 12 Day

Date trial data considered complete

2024 Year 01 Month 15 Day

Date analysis concluded

2024 Year 01 Month 17 Day


Other

Other related information



Management information

Registered date

2023 Year 02 Month 27 Day

Last modified on

2024 Year 02 Month 02 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000057445