UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000000889
Receipt number R000001071
Scientific Title Case-control association study to identify key single nucleotide polymorphisms (SNPs) of cardio-renal association in type 2 diabetes.
Date of disclosure of the study information 2007/11/14
Last modified on 2008/12/09 11:07:18

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Basic information

Public title

Case-control association study to identify key single nucleotide polymorphisms (SNPs) of cardio-renal association in type 2 diabetes.

Acronym

SNPs of Cardio-Renal Association in Type 2 Diabetes: SOCRATES

Scientific Title

Case-control association study to identify key single nucleotide polymorphisms (SNPs) of cardio-renal association in type 2 diabetes.

Scientific Title:Acronym

SNPs of Cardio-Renal Association in Type 2 Diabetes: SOCRATES

Region

Japan


Condition

Condition

Chronic kidney disease (CKD) due to type-2 diabetes mellitus

Classification by specialty

Cardiology Endocrinology and Metabolism Nephrology

Classification by malignancy

Others

Genomic information

YES


Objectives

Narrative objectives1

Identify key SNPs of cardio-renal association.

Basic objectives2

Others

Basic objectives -Others

Purpose of this study is to find gene polymorphisms which are related to progressions of cardio-vascular disease (CVD) and chronic kidney disease (CKD) in type 2 diabetic CKD patients. In our cohort, we survey 100 SNPs (including insertion/ deletion) correlated with atheloscrelosis, inflammation, renin-angiotensin-aldosterone system, fibrolytic system and etc. simultaneously.

Purpose 1) Identify gene polymorphisms which have associations with CVD complications in the beginning of hemodialysis (HD) in patients with type 2 diabetes.

Purpose 2) Identify gene polymorphisms which have associations with progression to end-stage renal disease (ESRD) in patients with type 2 diabetes.

Purpose 3) Identify gene polymorphisms which have associations with CVD complications in HD patients due to type 2 diabetic nephropathy.

Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Study 1) Of all the patients entered, compare the frequency of the gene polymorphisms between the case group and the control group.
Case consists of patients with history of CVD complications at 3 months after starting hemodialysis. Control consists of those without.

Study 2) Compare the frequency of the gene polymorphisms between the case group and the control group.
Case consists of the patients entered to this study. Control consists of type-2 diabetic patients who do not excrete proteinuria despite more than 10-years duration of DM among the cohort we have previously collected. In the control group, age, gender and duration of disease are matched to the case.

Study 3) Among the patients entered, compare the frequency of the gene polymorphisms between the case group and the control group.
Case consists of patients with CVD complications (including both death and hospitalization) at 3 years after starting hemodialysis. Control consists of those without.

Key secondary outcomes

Only in the study 3, secondary outcomes are; total hospitalizations, total deaths, occlusions of arteriovenous fistula (AVF), cardio thoracic rate (CTR), and natriuretic peptides.


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


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

20 years-old <=

Age-upper limit

75 years-old >=

Gender

Male and Female

Key inclusion criteria

Type 2 diabetic patients who have newly entered maintenance hemo-dialysis after at least 10 years duration of DM. Absence of diabetic retinopathy can be included.

Key exclusion criteria

Newly entered HD patients due to benign nephroscrelosis, nephritis, hereditary renal disease and type 1 DM. Deaths within 3 months of starting dialysis. Patients who do not need dialysis any more due to recovery of renal function. Peritoneal Dialysis. Patients who are planning to undertake living kidney transplantation. Patients with malignant tumors, liver cirrhosis, immuno-deficiencies, collagen diseases and severe mental disorders.

Target sample size

300


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Enyu Imai

Organization

Osaka University Graduate School of Medicine

Division name

Nephrology

Zip code


Address

Box A8, 2-2 Yamadaoka, Suita-city, Osaka, Japan

TEL

06-6879-3632

Email



Public contact

Name of contact person

1st name
Middle name
Last name Yoshiyuki Furumatsu

Organization

Osaka University Graduate School of Medicine

Division name

Nephrology

Zip code


Address

Box A8, 2-2 Yamadaoka, Suita-city, Osaka, Japan

TEL

06-6879-3632

Homepage URL


Email

furumatsu@yahoo.co.jp


Sponsor or person

Institute

Osaka University Graduate School of Medicine

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


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

2007 Year 11 Month 14 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

Terminated

Date of protocol fixation

2007 Year 10 Month 10 Day

Date of IRB


Anticipated trial start date

2007 Year 11 Month 01 Day

Last follow-up date

2015 Year 11 Month 01 Day

Date of closure to data entry

2016 Year 11 Month 01 Day

Date trial data considered complete

2016 Year 11 Month 01 Day

Date analysis concluded

2016 Year 11 Month 01 Day


Other

Other related information

We have reported atherosclerotic genetic risk factors of 690 diabetic patients (Yamasaki Y et al. Diabetes Care 29: 2445-2451, 2006). Since then, we have enrolled more patients and the number reached up to 2500. Among them, as a control of study 2, we selected those who have at least 10 years of disease duration, who do not excrete overt proteinuria and whose age and sex are matched with those of case group in study 2.


Management information

Registered date

2007 Year 11 Month 14 Day

Last modified on

2008 Year 12 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000001071


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name