UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000001588
Receipt number R000001910
Scientific Title An open-label, multicenter, randomized, controlled, parallel-group comparative study on the effectiveness of carbohydrate-counting and calorie-counting as a dietary management in type 2 diabetic patients treated without insulin therapy
Date of disclosure of the study information 2008/12/25
Last modified on 2012/10/15 09:20:10

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Basic information

Public title

An open-label, multicenter, randomized, controlled, parallel-group comparative study on the effectiveness of carbohydrate-counting and calorie-counting as a dietary management in type 2 diabetic patients treated without insulin therapy

Acronym

Carbohydrate Counting and Calorie Counting study of dietary management in type 2 diabetic patients without insulin therapy (4C study)

Scientific Title

An open-label, multicenter, randomized, controlled, parallel-group comparative study on the effectiveness of carbohydrate-counting and calorie-counting as a dietary management in type 2 diabetic patients treated without insulin therapy

Scientific Title:Acronym

Carbohydrate Counting and Calorie Counting study of dietary management in type 2 diabetic patients without insulin therapy (4C study)

Region

Japan


Condition

Condition

Type 2 diabetes mellitus

Classification by specialty

Endocrinology and Metabolism

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To compare the effectiveness of carbohydrate-counting focusing on amount of carbohydrate and calorie-counting with a food exchange list mainly focusing on nutrient balance and energy restriction as a dietary management in type 2 diabetic patients treated without insulin therapy.

Basic objectives2

Bio-equivalence

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

Glycemic control status (HbA1c)

Key secondary outcomes

1. Other measures of glycemic status (FPG, 1,5-AG, IRI, rate of achievement of glycemic goal (HbA1c < 7.0 or < 6.5%))
2. Body weight, BMI
3. Lipid profile (LDL, HDL, TG, FFA, etc.)
4. Albuminuria
5. Level of continuation and performance of dietary management (intake energy and nutrition survey)
6. Level of satisfaction with therapy, QOL (questionnaire survey)


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is considered as a block.

Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Behavior,custom

Interventions/Control_1

Calorie-counting group:
A nationally registered dietitian guides a calorie-restricted diet of 25-30 kcal/IBW/day using a food exchange list. Periodic guidance is repeated during the 6-month study period.
Manuals for each dietary intervention are provided and methods of guidance are shared among facilities.

Interventions/Control_2

Carbohydrate-counting group:
A nationally registered dietitian guides a diet using criteria according to which carbohydrate amount is correspond to 50-60% of a 25-30 kcal/IBW/day diet. Periodic guidance is repeated during the 6-month study period.
Manuals for each dietary intervention are provided and methods of guidance are shared among facilities.

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

70 years-old >

Gender

Male and Female

Key inclusion criteria

1. Patients with type 2 diabetes mellitus.
2. Age 20 to less than 70 years.
3. Under treatment with no antidiabetic agents, or with oral hypoglycemic drugs.
4. Not undergoing dietary intervention during the 6-month period prior to initiation of the study.
5. Patients with HbA1c of 6.5-10.0% at entry.
6. No initiation or changes in hypoglycemic drugs or antidyslipidemic drugs within the 3-month period preceding initiation of the study.

Key exclusion criteria

1. Complication by stage 3B or more severe diabetic nephropathy, or stage 3 or more severe chronic kidney disease (CKD) not associated with diabetes.
2. Malignant or acute disease.
3. Severe liver disease.
4. Decreased pancreatic function due to chronic pancreatitis, etc.
5. Past history of surgery of the gastrointestinal tract or complication by gastrointestinal disease requiring dietary restriction.
6. Heart failure.
7. Pregnant or lactating women
8. Under insulin treatment
9. Under steroid treatment
10. Patient judged to have difficulty in performing dietetics on his/her own due to dementia, etc.
11. Other patients judged unsuitable by the attending physician.

Target sample size

200


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Yoshiki Nishizawa

Organization

Osaka City University Graduate School of Medicine

Division name

Department of Metabolism, Endocrinology and Molecular Medicine

Zip code


Address

1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan

TEL

06-6645-3806

Email



Public contact

Name of contact person

1st name
Middle name
Last name Shinya Fukumoto

Organization

Osaka City University Graduate School of Medicine

Division name

Department of Metabolism, Endocrinology and Molecular Medicine

Zip code


Address

1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan

TEL

06-6645-3806

Homepage URL


Email

sfukumoto@med.osaka-cu.ac.jp


Sponsor or person

Institute

4C-study Research Group

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization

None


Other related organizations

Co-sponsor

None

Name of secondary funder(s)

None


IRB Contact (For public release)

Organization


Address


Tel


Email



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

2008 Year 12 Month 25 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

2008 Year 12 Month 11 Day

Date of IRB


Anticipated trial start date

2009 Year 01 Month 01 Day

Last follow-up date

2012 Year 09 Month 01 Day

Date of closure to data entry

2012 Year 12 Month 01 Day

Date trial data considered complete

2013 Year 03 Month 01 Day

Date analysis concluded

2013 Year 08 Month 01 Day


Other

Other related information



Management information

Registered date

2008 Year 12 Month 18 Day

Last modified on

2012 Year 10 Month 15 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000001910


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name