Renal Effects of Aliskiren Compared With and in Combination With Irbesartan in Patients With Type 2 Diabetes, Hypertension, and Albuminuria  

Oleh:

Persson, Frederik ; Rossing, Peter ; Reinhard, Henrik ; Juhl, Tina ; Stehouwer, Coen D.A.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Diabetes Care vol. 32 no. 10 (Oct. 2009), page 1873-1879 .

Ketersediaan

Perpustakaan FK Nomor Panggil: D05.K.2009.03 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

OBJECTIVE We investigated whether the antiproteinuric effect of the direct renin inhibitor aliskiren is comparable to that of irbesartan and the effect of the combination. RESEARCH DESIGN AND METHODS This was a double-blind, randomized, crossover trial. After a 1-month washout period, 26 patients with type 2 diabetes, hypertension, and albuminuria (>100 mg/day) were randomly assigned to four 2-month treatment periods in random order with placebo, 300 mg aliskiren once daily, 300 mg irbesartan once daily, or the combination using identical doses. Patients received furosemide in a stable dose throughout the study. The primary end point was a change in albuminuria. Secondary measures included change in 24-h blood pressure and glomerular filtration rate (GFR). RESULTS Placebo geometric mean albuminuria was 258 mg/day (range 84–2,361), mean ± SD 24-h blood pressure was 140/73 ± 15/8 mmHg, and GFR was 89 ± 27 ml/min per 1.73 m2. Aliskiren treatment reduced albuminuria by 48% (95% CI 27–62) compared with placebo (P < 0.001), not significantly different from the 58% (42–79) reduction with irbesartan treatment (P < 0.001 vs. placebo). Combination treatment reduced albuminuria by 71% (59–79), more than either monotherapy (P < 0.001 and P = 0.028). Fractional clearances of albumin were significantly reduced (46, 56, and 67% reduction vs. placebo). Twenty-four-hour blood pressure was reduced 3/4 mmHg by aliskiren (NS/P = 0.009), 12/5 mmHg by irbesartan (P < 0.001/P = 0.002), and 10/6 mmHg by the combination (P = 0.001/P < 0.001). GFR was significantly reduced 4.6 (95% CI 0.3–8.8) ml/min per 1.73 m2 by aliskiren, 8.0 (3.6–12.3) ml/min per 1.73 m2 by irbesartan, and 11.7 (7.4–15.9) ml/min per 1.73 m2 by the combination. CONCLUSIONS The combination of aliskiren and irbesartan is more antiproteinuric in type 2 diabetic patients with albuminuria than monotherapy.

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