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Effects of Semaglutide on Chronic Kidney Disease in Patients with Type 2 Diabetes

The FLOW trial randomized 3,533 adults with type 2 diabetes and chronic kidney disease (eGFR 50–75 mL/min/1.73 m² with UACR >300–<5000 mg/g, or eGFR 25 to <50 with UACR >100–<5000 mg/g) to semaglutide 1.0 mg weekly versus placebo; after median 3.4 years the primary composite of major kidney disease events was lower with semaglutide (HR 0.76), with lower cardiovascular mortality and all-cause mortality in the primary hierarchical secondary testing.

Design

  • Double-blind RCT; n = 3,533 (1,767 semaglutide vs 1,766 placebo)
  • Population: type 2 diabetes + CKD defined by eGFR 50–75 ml/min/1.73 m² and UACR >300 and <5000 mg/g, or eGFR 25 to <50 and UACR >100 and <5000 mg/g (ratio definition per NEJM)
  • Intervention: once-weekly semaglutide 1.0 mg vs placebo on standard care
  • Median follow-up: 3.4 y (stopped early after prespecified interim analysis)

Primary outcome (major kidney disease events)

Composite of onset of kidney failure (dialysis, transplantation, or eGFR <15 ml/min/1.73 m²), ≥50% reduction in eGFR from baseline, or death from kidney-related or cardiovascular causes.

  • Events: 331 (semaglutide) vs 410 (placebo); HR 0.76 (95% CI 0.66–0.88; P = 0.0003)

Selected secondary / hierarchical outcomes (abstract)

  • Kidney-specific components composite: HR 0.79 (95% CI 0.66–0.94)
  • Cardiovascular death: HR 0.71 (95% CI 0.56–0.89)
  • 3-point MACE: HR 0.82 (95% CI 0.68–0.98; P = 0.029)
  • All-cause mortality: HR 0.80 (95% CI 0.67–0.95; P = 0.01)
  • Mean annual eGFR slope: less steep decline by 1.16 ml/min/1.73 m² (P < 0.001)

Evidence hygiene

  • Population-specific: T2D + CKD—do not merge with STEP-1 obesity-without-diabetes evidence.
  • Dose: 1.0 mg weekly here vs 2.4 mg obesity/HFpEF programmes elsewhere.

Publication

Perkovic V, Tuttle KR, Rossing P, et al. N Engl J Med. 2024 Jun 13;390(22):2079–2091. PMID 38785209.

Outcomes

  • All-Cause Mortality Risk
    Events: /
  • Cardiovascular Mortality Rate
    Events: /
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