Semaglutide and tirzepatide effects on cardiovascular outcomes in people with overweight or obesity in the real world (STEER)

Jan 6, 2026Diabetes, obesity & metabolism

Semaglutide and tirzepatide effects on heart health in people with overweight or obesity in everyday life

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Abstract

10,625 patients were included in each matched cohort, showing that semaglutide was associated with a 29% reduction in the risk of major adverse cardiovascular events compared to tirzepatide.

  • Semaglutide was linked to a statistically significant 29% reduction in the risk of revised 3-point major adverse cardiovascular events (rMACE-3).
  • A 22% reduction in the risk of revised 5-point major adverse cardiovascular events (rMACE-5) was also observed with semaglutide.
  • In a secondary analysis, semaglutide demonstrated a 57% lower risk of rMACE-5 compared to tirzepatide.
  • The findings suggest that semaglutide may be more effective than tirzepatide in reducing cardiovascular risks among patients with overweight or obesity and established atherosclerotic cardiovascular disease.

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Key numbers

29%
Reduction in rMACE-3 Risk
Hazard ratio of 0.71 for rMACE-3.
22%
Reduction in rMACE-5 Risk
Hazard ratio of 0.78 for rMACE-5.
57%
Per-Protocol rMACE-3 Reduction
Hazard ratio of 0.43 in per-protocol analysis.

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