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Efficacy and Safety Study of Probucol in Patients With Diabetic Nephropathy

A Phase II, Multicenter, Randomized, Double Blind, Double-dummy, 16-week, Placebo Controlled Study to Evaluate the Efficacy and Safety of Probucol in Patients With Nephropathy Due to Type 2 Diabetes.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01726816
Enrollment
126
Registered
2012-11-15
Start date
2012-10-31
Completion date
2014-09-30
Last updated
2017-05-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetic Nephropathy

Keywords

Diabetic nephropathy, Albumin creatinine ratio, Probucol

Brief summary

This trial is randomized, placebo-controlled, double blind, double dummy, multi-centre trial. * Screening period (4 week) * Double blind treatment period (16 weeks)

Detailed description

1. Usage: 16 week, BID, Prescribed Oral with the breakfast and dinner 2. Dosage:Placebo group: placebo 2 tablets, 16 weeks Probucol 250mg group: probucol 125mg 2 tablets, 16 weeks Probucol 500mg group: probucol 250 mg 2 tablets, 16 weeks

Interventions

DRUGProbucol 250mg/day

Probucol 250mg + Placebo

DRUGProbucol 500mg/day

Probucol 500mg + Placebo

DRUGPlacebo

Probucol matching placebo

Sponsors

Korea Otsuka Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
20 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. The subject is male or female diagnosed with type 2 diabetes mellitus and must be aged 20 to 75 years at the time of screening visit 2. Urinary albumin excretion \> 300 mg/g Cr at screening visit 3. Subjects administered ACEI or ARB without changing dosage prior to 3 months at the screening visit (if subjects administered ACEI or ARB) 4. Subjects administered statins without changing dosage prior to 3 months at the screening visit(if subjects administered statins) or subjects have no plan to administered to statin(if subjects is not administered statin) 5. 15 mL/min ≤ eGFR ≤ 90 mL min 6. Subjects must be willing and able to give signed and dated written informed consent.

Exclusion criteria

1. Type 1 DM or gestational diabetes 2. Subjects on Renal replacement therapy or Renal transplantation prior to Screening visit 3. Ventricular arrhythmia (multiple and multifocal premature ventricular contractions) 4. Cardiac damage (abnormally levels of Troponin I) 5. Subject with medical history of cardiac syncope or primary syncope 6. Has condition that may prolong QTc interval (for man QTc interval\>450msec, for woman QTc interval\>470msec) at screening 7. Pregnant or lactating woman before randomization 8. Inflammatory bowel disease (ulcerative colitis, Crohn's disease) 9. Cholestasis 10. Congestive heart failure 11. Subjects with a myocardial infarction, Unstable angina, or cerebral infarction within the latest 6 months 12. Subjects has a diagnosis of NYHA grade III-IV status 13. AST or ALT is 3.0 times higher than the upper limit of the normal range 14. Active hepatitis Or Liver cirrhosis 15. Subjects with Hyperkalemia (K\>5.5 mEq/L) 16. Subjects with Renal Artery stenosis 17. Subjects with Malignancy within the 5 years at the time of screening visit(except for treated Basal cells carcinoma or squamous cell carcinoma) 18. Urinary tract disease (urinary tract infection, Neurogenic bladder) 19. Kidney disease (nephritis, chronic glomerulonephritis or polycystic kidney disease) 20. Has an allergic history to probucol 21. HbA1c \> 9% 22. Systolic blood pressure ≥ 160 mmHg or Diastolic blood pressure ≥ 100 mmHg 23. Subjects taken probucol within 3 months prior to Screening 24. The subject has received an investigational product or biological agent within 3 months prior to screening 25. Subjects otherwise judged by the investigator or sub investigator to be inappropriate for inclusion in the trial

Design outcomes

Primary

MeasureTime frameDescription
A/C ratio16 weekThe change in the A/C ratio from baseline to the end of treatment(16 week) \[Time Frame: baseline to 16 weeks\]

Secondary

MeasureTime frameDescription
Serum creatinine16 weekThe change in the Serum creatinine from baseline to the end of treatment.
eGFR16 weekThe change in the eGFR from baseline to the end of treatment(16 week)
cystatin C16 weekThe change in the cystatin C from baseline to the end of treatment(16 week)
urine albumin16 weekThe change in the urine albumin from baseline to the end of treatment(16 week)
P/C ratio16 weekThe change in the P/C ratio from baseline to the end of treatment(16 week)

Other

MeasureTime frameDescription
urinary fibronectin16 weekThe change in the urinary fibronectin from baseline to the end of treatment(16 week)
urinary transferrin16 weekThe change in the urinary transferrin from baseline to the end of treatment(16 week)
Total Cholesterol16 weekThe change in the Total cholesterol from baseline to the end of treatment(16 week)
c-peptide16 weekThe change in the c-peptide from baseline to the end of treatment(16 week)
insulin16 weekThe change in the insulin from baseline to the end of treatment(16 week)
Triglyceride16 weekThe change in the Triglyceride from baseline to the end of treatment(16 week)
LDL-C16 weekThe change in the LDL-C from baseline to the end of treatment(16 week)
HDL-C16 weekThe change in the HDL-C from baseline to the end of treatment(16 week)
oxidized LDL16 weekThe change in the oxidized LDL from baseline to the end of treatment(16 week)
d-ROM16 weekThe change in the d-ROM from baseline to the end of treatment(16 week)

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 12, 2026