UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000022910
Receipt number R000026358
Scientific Title Evaluation of the efficacy of dietary carbohydrate restriction intervention in patients with type 2 diabetes.
Date of disclosure of the study information 2016/06/28
Last modified on 2023/07/04 10:04:40

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Basic information

Public title

Evaluation of the efficacy of dietary carbohydrate restriction intervention in patients with type 2 diabetes.

Acronym

Evaluation of the efficacy of dietary carbohydrate restriction intervention in patients with type 2 diabetes.

Scientific Title

Evaluation of the efficacy of dietary carbohydrate restriction intervention in patients with type 2 diabetes.

Scientific Title:Acronym

Evaluation of the efficacy of dietary carbohydrate restriction intervention in patients with type 2 diabetes.

Region

Japan


Condition

Condition

Type 2 diabetes

Classification by specialty

Endocrinology and Metabolism

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To determine whether moderately low-carbohydrate diet is sustainable, we enrolled 200 type 2 diabetic patients with this diet sequentially and observed for 24 months.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

We compered the values of HbA1c, at the first nutritional intervention and every 6-month intervals post-intervention.

Key secondary outcomes

We compared body weight, lipid profile (TC, LDL-C, HDL-C, TG), blood pressure (SBP, DBP), liver enzyme (AST, ALT), and renal function (UN, Cr, eGFR), and dietary intake date.


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Behavior,custom

Interventions/Control_1

We compered the test values, at the first nutritional intervention and every 6-month intervals post-intervention during 96 months.

Interventions/Control_2


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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Diabetic patients who have a carbohydrate restriction intervention with type 2 diabetes receiving outpatient treatment in our hospital during 96 months between August 2009 and October 2022.

Key exclusion criteria

Patients with diabetic nephropathy more than 4 and during pregnancy and children were excluded from this study.

Target sample size

200


Research contact person

Name of lead principal investigator

1st name Satoru
Middle name
Last name Yamada

Organization

Kitasato University Kitasato Institute Hospital

Division name

Diabetes Center

Zip code

108-8642

Address

5-9-1 Shirokane,Minato-ku,Tokyo,Japan

TEL

03-3444-6161

Email

yamada-s@insti.kitasato-u.ac.jp


Public contact

Name of contact person

1st name Satoru
Middle name
Last name Yamada

Organization

Kitasato University Kitasato Institute Hospital

Division name

Diabetes Center

Zip code

108-8642

Address

5-9-1 Shirokane,Minato-ku,Tokyo,Japan

TEL

03-3444-6161

Homepage URL


Email

yamada-s@insti.kitasato-u.ac.jp


Sponsor or person

Institute

Kitasato University Kitasato Institute Hospital

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Institutional review board of Kitasato University Kitasato Institute Hospital

Address

5-9-1 Shirokane,Minato-ku,Tokyo,Japan

Tel

03-3444-6161

Email

kenkyu@insti.kitasato-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



Other administrative information

Date of disclosure of the study information

2016 Year 06 Month 28 Day


Related information

URL releasing protocol

https://www.mdpi.com/2072-6643/10/5/528

Publication of results

Partially published


Result

URL related to results and publications

https://www.mdpi.com/2072-6643/10/5/528

Number of participants that the trial has enrolled

200

Results

Over 36 months, the mLCD intervention showed sustained effectiveness (without safety concerns) in improving HbA1c, lipid profile, and liver enzymes in Japanese patients with type 2 diabetes.

Results date posted

2023 Year 01 Month 21 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

We retrospectively enrolled 200 patients with type 2 diabetes who received outpatient treatment at Kitasato Institute Hospital, Tokyo, Japan between August 2009 and October 2013.

Female/Male 71/129
Age     59.7
BMI (kg/m2) 26.4
FPG (mg/dL) 151
HbA1c (%) 8.0
TG (mg/dL) 147
LDL-C (mg/dL) 116
HDL-C (mg/dL) 60
BP (mmHg) 128/76

Participant flow

The characteristics of the 200 patients enrolled. Of these, 43 participants were lost to follow-up during the 36-month study period. The most common reasons for drop-out were a discontinuation of visits to our hospital (n = 24) and referral to general physicians (n = 15). The other four participants lost to follow-up died (two from myocardial infarction, one from cardiac arrest, and one from a head injury). There were no differences in the baseline characteristics between the 43 patients who dropped out and the remaining 157.

Adverse events

No answer.

Outcome measures

At the first nutritional intervention and at six-month intervals thereafter, we measured the following: glycated hemoglobin (HbA1c), body weight, lipid profile (total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglyceride (TG)), blood pressure (systolic blood pressure (SBP), diastolic blood pressure (DBP)), liver enzymes (aspartate aminotransferase (AST), alanine aminotransferase (ALT)), and renal function (urea nitrogen (UN), uric acid (UA), creatinine (Cr), estimated glomerular filtration rate (eGFR)). We also recorded the incidence of hypoglycemia (defined as self-monitored blood glucose levels less than 70 mg/dL, with or without hypoglycemic symptoms) for 2 months before the first intervention and for 2-month intervals during the intervention, and calculated the corresponding before/after ratios. Missing values were replaced with values obtained during the previous or following two months.

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2009 Year 08 Month 01 Day

Date of IRB

2016 Year 03 Month 01 Day

Anticipated trial start date

2009 Year 08 Month 03 Day

Last follow-up date

2023 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

2016 Year 06 Month 27 Day

Last modified on

2023 Year 07 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000026358


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name