UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060145
Receipt number R000055551
Scientific Title Effects of individualized dietary advice using a dietary questionnaire for adults with type 2 diabetes in a small medical institution: A multicenter randomized clinical trial
Date of disclosure of the study information 2025/12/20
Last modified on 2025/12/20 13:18:58

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Basic information

Public title

Effects of individualized dietary advice using a dietary questionnaire for adults with type 2 diabetes in a small medical institution: A multicenter randomized clinical trial

Acronym

Effects of individualized dietary advice using a dietary questionnaire for adults with type 2 diabetes in a small medical institution: A multicenter randomized clinical trial

Scientific Title

Effects of individualized dietary advice using a dietary questionnaire for adults with type 2 diabetes in a small medical institution: A multicenter randomized clinical trial

Scientific Title:Acronym

Effects of individualized dietary advice using a dietary questionnaire for adults with type 2 diabetes in a small medical institution: A multicenter randomized clinical trial

Region

Japan


Condition

Condition

Type 2 diabetes

Classification by specialty

Endocrinology and Metabolism

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

A randomized controlled trial will examine the effects of individualized dietary advice based on food and nutrient intakes using dietary questionnaire for adults with type 2 diabetes in small medical institutions (hospitals or clinics with 99 or fewer general beds).

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Mean change in HbA1c from baseline at 6 months

Key secondary outcomes

Changes in weight, serum triglyceride, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and intakes of foods and nutrients


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -participants are blinded

Control

No treatment

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Food Behavior,custom

Interventions/Control_1

The intervention group will receive dietary advice using the BDHQ individual feedback sheet from their physician approximately two to three times in six months, depending on the frequency of outpatient visits to their physician.

Interventions/Control_2

The control group will not receive the BDHQ feedback sheets, and the sheets will not be disclosed to either the physician or the patient. Patients receive dietary advice to what the physician notices during the interview.
Neither group will receive dietary advice from a dietitian during the intervention and follow-up periods.

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


Not applicable

Gender

Male and Female

Key inclusion criteria

Adults diagnosed with type 2 diabetes.
They must have received and understood a full explanation of the purpose and contents of this study and must have given their free and voluntary consent in writing.

Key exclusion criteria

Pregnant women, those with severe renal dysfunction (overt proteinuria or end-stage renal failure), and those who withdraw their consent to participate during the study period.

Target sample size

220


Research contact person

Name of lead principal investigator

1st name Yuka
Middle name
Last name Omura

Organization

The Jikei University School of Medicine, Tokyo, Japan

Division name

Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine,

Zip code

105-0003

Address

3-25-8 Nishishimbashi, Minato-ku, Tokyo 105-8461, Japan

TEL

03-3433-1111

Email

yukaomura@jikei.ac.jp


Public contact

Name of contact person

1st name Yuka
Middle name
Last name Omura

Organization

The Jikei University School of Medicine, Tokyo, Japan

Division name

Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine,

Zip code

105-0003

Address

3-25-8 Nishishimbashi, Minato-ku, Tokyo 105-8461, Japan

TEL

03-3433-1111

Homepage URL


Email

yukaomura@jikei.ac.jp


Sponsor or person

Institute

The Jikei University School of Medicine, Tokyo, Japan

Institute

Department

Personal name



Funding Source

Organization

The Jikei University School of Medicine, Tokyo, Japan

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

The Jikei University School of Medicine, Tokyo, Japan

Address

3-25-8 Nishishimbashi, Minato-ku, Tokyo 105-8461, Japan

Tel

03-3433-1111

Email

jikei@esct.bvits.com


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

2025 Year 12 Month 20 Day


Related information

URL releasing protocol

https://jikei.bvits.com/rinri/Apply/show.aspx?TYPE=3&ID=33648

Publication of results

Unpublished


Result

URL related to results and publications

https://jikei.bvits.com/rinri/Apply/show.aspx?TYPE=3&ID=33648

Number of participants that the trial has enrolled

81

Results

A total of 81 Japanese adults with type 2 diabetes from six local clinics were randomized into the PN group (n=41) or the control group (n=40).
At baseline, the mean HbA1c was 7.6% (60 mmol/L) for the PN group and 7.3% (56 mmol/L) for the control group, with no statistically significant difference. After 6 months, the mean change in HbA1c was -0.36% for the PN group and -0.02% for the control group. The mean difference in HbA1c change between the two groups was -0.33 (95% CI: -0.71, -0.02).

Results date posted

2025 Year 12 Month 20 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

At baseline, the mean HbA1c was 7.6% (60 mmol/L) for the PN group and 7.3% (56 mmol/L) for the control group, with no statistically significant difference.

Participant flow

A total of 81 Japanese adults with type 2 diabetes from six local clinics were randomized into the PN group (n=41) or the control group (n=40)

Adverse events

No adverse events related to the intervention were reported during the study period.

Outcome measures

After 6 months, the mean change in HbA1c was -0.36% for the PN group and -0.02% for the control group. The mean difference in HbA1c change between the two groups was -0.33 (95% CI: -0.71, -0.02).

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2022 Year 08 Month 28 Day

Date of IRB

2022 Year 10 Month 11 Day

Anticipated trial start date

2022 Year 11 Month 01 Day

Last follow-up date

2024 Year 04 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

2025 Year 12 Month 20 Day

Last modified on

2025 Year 12 Month 20 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000055551