Key clinical point: Once-weekly tirzepatide vs. insulin glargine slowed estimated glomerular filtration rate (eGFR) decline, and reduced urine albumin-creatinine ratio (UACR) and the risk for composite kidney outcomes in patients with type 2 diabetes (T2D) with varying degrees of chronic kidney disease and high cardiovascular risk.
Major finding: Combined tirzepatide vs. insulin glargine was associated with slower annual rates of eGFR decline (between-group difference [Δ], 2.2 [95% CI, 1.6-2.8] mL/min per 1.73 m²) and reduced UACR increase (Δ, −31.9%; 95% CI, −37.7% to −25.7%) and risk for composite kidney outcomes (hazard ratio, 0.58; 95% CI, 0.43-0.80).
Study details: This was a post hoc analysis of SURPASS-4 trial including 2,002 patients with T2D and high cardiovascular risk who were randomly assigned to receive once-weekly tirzepatide (5, 10, or 15 mg; n=997) or insulin glargine (n=1,005).
Disclosures: This study was funded by Eli Lilly and Company. Some authors declared receiving research grants, contract support, payment/honoraria for speaking, and/or consulting fees from various sources, including Eli Lilly. Some authors declared being employees and shareholders of Eli Lilly.
Source: Heerspink HJL et al. Effects of tirzepatide versus insulin glargine on kidney outcomes in type 2 diabetes in the SURPASS-4 trial: Post-hoc analysis of an open-label, randomised, phase 3 trial. Lancet Diabetes Endocrinol. 2022 (Sep 21). Doi: 10.1016/S2213-8587(22)00243-1.