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- Title
Direct Renin Inhibition in Non-diabetic chronic Kidney disease (DRINK): a prospective randomized trial.
- Authors
Tang, Sydney C W; Chan, Kam Wa; Ip, Dennis K M; Yap, Desmond Y H; Ma, Maggie K M; Mok, Maggie M Y; Chan, Gary C W; Tam, Sidney; Lai, Kar Neng
- Abstract
Background The potential long-term safety and efficacy of aliskiren in nondiabetic chronic kidney disease (CKD) are unknown. We sought to investigate the renoprotective effect of aliskiren on nondiabetic CKD patients. Methods In this open-label, parallel, randomized controlled trial, nondiabetic CKD Stages 3–4 patients were randomized to receive aliskiren added to an angiotensin II receptor blocker (ARB) at the maximal tolerated dose, or ARB alone. Primary outcome was the rate of change in estimated glomerular filtration rate (eGFR). Secondary endpoints included rate of change in urine protein-to-creatinine ratio (UPCR), cardiovascular events and hyperkalemia. Composite renal outcomes of doubling of baseline serum creatinine or a 40% reduction in eGFR or incident end-stage renal disease or death were analyzed as post hoc analysis. Results Seventy-six patients were randomized: 37 to aliskiren (mean age 55.1 ± 11.1 years) and 39 to control (mean age 55.0 ± 9.4 years). Their baseline demographics were comparable to eGFR (31.9 ± 9.0 versus 27.7 ± 9.0 mL/min/1.73 m2, P = 0.05) and UPCR (30.7 ± 12.6 versus 47.8 ± 2.8 mg/mmol, P = 0.33) for treatment versus control subjects. After 144 weeks of follow-up, there was no difference in the rate of eGFR change between groups. Six patients in the aliskiren group and seven in the control group reached the renal composite endpoint (16.2% versus 17.9%, P = 0.84). The cardiovascular event rate was 10.8% versus 2.6% (P = 0.217). The hyperkalemia rate was 18.9% versus 5.1% with an adjusted hazard ratio of 7.71 (95% confidence interval 1.14 to 52.3, P = 0.04) for the aliskiren arm. Conclusion Aliskiren neither conferred additional renoprotective benefit nor increased adverse events, except for more hyperkalemia in nondiabetic CKD patients.
- Subjects
ANGIOTENSIN II; CHRONIC kidney failure; ANGIOTENSIN-receptor blockers; RENIN; EPIDERMAL growth factor receptors; GLOMERULAR filtration rate
- Publication
Nephrology Dialysis Transplantation, 2021, Vol 36, Issue 9, p1648
- ISSN
0931-0509
- Publication type
Article
- DOI
10.1093/ndt/gfaa085