Type 2 & other diabetes

Tirzepatide Associated With Reduced Albuminuria in Participants With Type 2 Diabetes: Pooled Post Hoc Analysis From the Randomized Active- and Placebo-Controlled SURPASS-1–5 Clinical Trials

Diabetes CarePublished Pooled post hoc analysis of the SURPASS-1–5 randomised trials

Authors' conclusion

In this post hoc analysis in people with type 2 diabetes, including those with chronic kidney disease, tirzepatide was associated with a clinically relevant decreased UACR versus comparators, suggesting a potential kidney-protective effect.

Study context

Population
People with T2D from the SURPASS-1–5 trials; subgroups by baseline urine albumin-to-creatinine ratio (UACR) ≥30 mg/g
Comparison
Tirzepatide vs pooled active and placebo comparators
Primary endpoint
Change from baseline in UACR
Follow-up
Week 40/42
Methodological detailsactive- and placebo-controlled, mixed model for repeated measures, on-treatment data
  • Active- and placebo-controlled
  • Mixed model for repeated measures
  • On-treatment data

Primary result

As reported in the abstract

Adjusted mean % change from baseline in UACR vs all pooled comparators
Each group vs pooled comparatorsAdjusted mean percent change, % (95% CI)
Tirzepatide 5 mg
−19.3(−25.5 to −12.5)
Tirzepatide 10 mg
−22.0(−28.1 to −15.3)
Tirzepatide 15 mg
−26.3(−32.0 to −20.0)

Further findings

UACR by comparator type

Results similar across pooled placebo, active and insulin comparator studies

UACR, subgroups with baseline UACR ≥30 mg/g

UACR lowering appeared more pronounced in subgroups with UACR ≥30 mg/g

Mediation analysis

Approximately one-half of the albuminuria reduction with tirzepatide may be weight loss related

Estimated glomerular filtration rate (eGFR) · week 40/42

No difference in eGFR between tirzepatide and pooled comparators

Original publication

Tirzepatide Associated With Reduced Albuminuria in Participants With Type 2 Diabetes: Pooled Post Hoc Analysis From the Randomized Active- and Placebo-Controlled SURPASS-1–5 Clinical Trials. Diabetes Care. Published 2 January 2025. doi:10.2337/dc24-1773

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