Abstract

BACKGROUND: A sizeable proportion of patients with chronic kidney disease (CKD) are reported to be frail. Here we examined the safety and efficacy of dapagliflozin in patients with CKD by frailty level.METHODS: Adults with CKD, with/without type 2 diabetes, with estimated glomerular filtration rate (eGFR) 25-75mL/min/1.73m 2 and urinary albumin-to-creatinine ratio 200-5000mg/g were randomized to dapagliflozin (10mg/day) or placebo. The primary endpoint was composite of sustained =50% eGFR decline, end-stage kidney disease (ESKD) or death from kidney or cardiovascular (CV) causes.RESULTS: Frailty index (FI), assessed by Rockwood cumulative deficit approach, was calculable in 4303/4304 (99.9%) patients: 1162 (27.0%) in not-to-mildly frail(FI=0.210), 1642 (38.2%) in moderately frail(FI 0.211-0.310), and 1499 (34.8%) in severely frail categories (FI>0.311). Dapagliflozin reduced the risk of the primary composite endpoint across all FI categories (hazard ratios [95% CI]: 0.50 [0.33-0.76], 0.62 [0.45-0.85], and 0.64 [0.49-0.83], respectively (P-interaction =0.67). Results were similar for secondary outcomes including kidney composite outcome (sustained =50% eGFR decline, ESKD or death from kidney cause; P-interaction=0.44), CV endpoint (heart failure hospitalization or CV death; P-interaction=0.63), and all-cause mortality (P-interaction p=0.42). Results were consistent when using FI as a continuous variable. Occurrence of serious adverse events was numerically lower in patients receiving dapagliflozin vs. placebo in all FI categories (16.9% vs. 20.1%, 26.3% vs. 30.7%, and 42.9% vs 47.8%, in not-to-mildly, moderately and severely frail categories, respectively).CONCLUSIONS: The relative benefit of dapagliflozin for all outcomes was consistent across all frailty categories, with no difference in associated safety.

View details for DOI 10.1093/gerona/glad181

View details for PubMedID 37527836