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Effects of valsartan, benazepril and their combination in overt nephropathy of type 2 diabetes: A prospective, randomized, controlled trial.

Ruggenenti, Piero; Trillini, Matias; P Barlovic, Drazenka; Cortinovis, Monica; Pisani, Antonio; Parvanova, Aneliya; Iliev, Ilian P; Ruggiero, Barbara; Rota, Stefano; Aparicio, Maria C; Perna, Annalisa; Peraro, Francesco; Diadei, Olimpia; Gaspari, Flavio; Carrara, Fabiola; Stucchi, Nadia; Martinetti, Davide; Janez, Andrej; Gregoric, Nadan; Riccio, Eleonora; Bossi, Antonio C; Trevisan, Roberto; Manunta, Paolo; Battaglia, Giovanni; David, Salvatore; Aucella, Filippo; Belviso, Antonio; Satta, Andrea; Remuzzi, Giuseppe.
Diabetes Obes Metab; 21(5): 1177-1190, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30793466

AIMS:

To evaluate whether angiotensin-converting enzyme (ACE) inhibitor and angiotensin II receptor blocker (ARB) combination therapy is more nephroprotective than ACE inhibitor or ARB monotherapy in people with type 2 diabetes and overt nephropathy.

MATERIALS AND METHODS:

In this prospective, randomized, open, blind-endpoint phase III trial sponsored by the Italian Drug Agency, 103 consenting patients with type 2 diabetes, aged >40 years, with serum creatinine levels 159 to 309 µmol/L, spot morning urinary albumin-creatinine ratio > 1000 mg/g (or > 500 mg/g in those on ACE inhibitor or ARB therapy at inclusion) were stratified by centre and randomized to 4.5-year treatment with valsartan 320 mg/d (n = 36), benazepril 20 mg/d (n = 34) or halved doses of both medications (n = 33). The primary endpoint was end-stage renal disease (ESRD). Modified intention-to-treat analyses were performed.

RESULTS:

Recruitment took place between June 2007 and February 2013 at 10 centres in Italy and one in Slovenia. A total of 77 participants completed the study and 26 were prematurely withdrawn. During a median (interquartile range) of 41 (18-54) months, 12 participants on benazepril (35.3%) and nine on combination therapy (27.3%) progressed to ESRD, versus five on valsartan (13.9%). Differences between benazepril (hazard ratio [HR] 3.59, 95% confidence interval [CI] 1.25-10.30; P = 0.018) or combination therapy (HR 3.28, 95% CI 1.07-10.0; P = 0.038) and valsartan were significant, even after adjustment for age, gender and baseline serum creatinine, systolic blood pressure and 24-hour proteinuria (HR 5.16, 95% CI 1.50-17.75, P = 0.009 and HR 4.75, 95% CI 1.01-22.39, P = 0.049, respectively). Adverse events were distributed similarly among the groups.

CONCLUSIONS:

In people with type 2 diabetes with nephropathy, valsartan (320 mg/d) safely postponed ESRD more effectively than benazepril (20 mg/d) or than halved doses of both medications.
Selo DaSilva