Oshima, M; Neuen, BL; Li, J; Perkovic, V; Charytan, DM; de Zeeuw, D; Edwards, R; ... Heerspink, HJL; + view all Oshima, M; Neuen, BL; Li, J; Perkovic, V; Charytan, DM; de Zeeuw, D; Edwards, R; Greene, T; Levin, A; Mahaffey, KW; De Nicola, L; Pollock, C; Rosenthal, N; Wheeler, DC; Jardine, MJ; Heerspink, HJL; - view fewer (2020) Early Change in Albuminuria with Canagliflozin Predicts Kidney and Cardiovascular Outcomes: A PostHoc Analysis from the CREDENCE Trial. Journal of the American Society of Nephrology 10.1681/ASN.2020050723. (In press).

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Abstract

BACKGROUND: The association between early changes in albuminuria and kidney and cardiovascular events is primarily based on trials of renin-angiotensin system blockade. It is unclear whether this association occurs with sodium-glucose cotransporter 2 inhibition. METHODS: The Canagliflozin and Renal Events in Diabetes with Established Nephropathy Clinical Evaluation (CREDENCE) trial enrolled 4401 patients with type 2 diabetes and CKD (urinary albumin-creatinine ratio [UACR] >300 mg/g). This post hoc analysis assessed canagliflozin's effect on albuminuria and how early change in albuminuria (baseline to week 26) is associated with the primary kidney outcome (ESKD, doubling of serum creatinine, or kidney death), major adverse cardiovascular events, and hospitalization for heart failure or cardiovascular death. RESULTS: Complete data for early change in albuminuria and other covariates were available for 3836 (87.2%) participants in the CREDENCE trial. Compared with placebo, canagliflozin lowered UACR by 31% (95% confidence interval [95% CI], 27% to 36%) at week 26, and significantly increased the likelihood of achieving a 30% reduction in UACR (odds ratio, 2.69; 95% CI, 2.35 to 3.07). Each 30% decrease in UACR over the first 26 weeks was independently associated with a lower hazard for the primary kidney outcome (hazard ratio [HR], 0.71; 95% CI, 0.67 to 0.76; P<0.001), major adverse cardiovascular events (HR, 0.92; 95% CI, 0.88 to 0.96; P<0.001), and hospitalization for heart failure or cardiovascular death (HR, 0.86; 95% CI, 0.81 to 0.90; P<0.001). Residual albuminuria levels at week 26 remained a strong independent risk factor for kidney and cardiovascular events, overall and in each treatment arm. CONCLUSIONS: In people with type 2 diabetes and CKD, use of canagliflozin results in early, sustained reductions in albuminuria, which were independently associated with long-term kidney and cardiovascular outcomes.

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