Type 2 Diabetes With Nephropathy
Conditions
Keywords
ACEI, ARB, DN, aliskiren, proteinuria
Brief summary
Activation of renin-angiotensin plays a crucial role diabetic nephropathy. Angiotensin converting enzyme inhibitor (ACEI) and Angiotensin I receptor blocker (ARB) has been shown renoprotection whether it was used alone or in combination. Aliskiren is a direct renin inhibitor (DRI) that has shown renal benefits and safety when combined with ARB. However, to date, the safety of add on aliskiren to the combination treatment of ACEI and ARB in diabetic nephropathy patients remains to elucidate.
Interventions
Aliskiren 300mg/d v.s. placebo for 12wk
Sponsors
Study design
Eligibility
Inclusion criteria
* Type2 diabetes patients * Age \<30yrs-70yrs\> * Overt proteinuria (Urinary protein creatinine ratio \> 200mg/g 2 times or more during past 6 Mo) * Scr \< 2.5 mg/dL * HbA1C \< 7.5 * Systolic blood pressure \> 160 mmHg without antihypertensive drugs or \> 140 with antihypertensive drug * No history of previous cardiovascular event (Stroke, Myocardial infarction, unstable angina, hospitalization, surgical correction PVD or PVD with claudication) * No hospitalization within 1 yr except for elective surgery
Exclusion criteria
* Physical examination found or suspected serious co-morbid (AF, carotid bruit, structural heart disease, cirrhosis and decompensate liver disease) * Non adherence to protocol * Intolerable to ACEI or ARB during run-in * Abnormal liver function test at the run-in period * Rapid declining renal function (SCr increase \> 40%) during run-in * Hyperkalemia (serum K \> 5.5 mEq/L at randomization) * Malignancy detected o * SBP lower than 110 mmHg (at randomization)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Assess short-term safety of the combination of aliskiren 300 mg/valsartan 160 mg /enalapril 20 mg in patients with diabetic nephropathy | 12 wk after randomization |
Secondary
| Measure | Time frame |
|---|---|
| Reduction of systolic blood pressure | 12 wk after randomization |
| Reduction of proteinuria | 12 wk after randomization |
| Change in GFR/mo | 12 wk after randomization |
| Change of Serum prorenin level compare to baseline | 12 wk after randomization |
| Change of Urinary TGFb1 compare to baseline | 12 wk after randomization |
Countries
Thailand