Evidence receipt

SURPASS-CVOT: what the trial found

A plain-language summary of one study: who took part, what they got, what it was compared with, what happened in each group, its limits and who paid for it. One trial. Results are group averages, not a prediction for any one person.

Study: SURPASS-CVOT[1]

Is tirzepatide at least as good as dulaglutide at preventing heart attacks, strokes and cardiovascular deaths in type 2 diabetes with heart disease?

Who was in it
13,299 adults with type 2 diabetes and atherosclerotic cardiovascular disease
What they got
Tirzepatide up to 15 mg once a week
Compared with
Dulaglutide 1.5 mg once a week (another GLP-1 medicine)
How long
Event-driven, multi-year
What happened
Heart attack, stroke or cardiovascular death: 12.2% on tirzepatide vs 13.1% on dulaglutide.
Relative effect
Hazard ratio 0.92 (95.3% CI 0.83–1.01): non-inferior; superiority not shown
Limits
  • No placebo group — compared with another GLP-1 medicine
  • Superiority was not shown
Funded by
Eli Lilly

Summary by Joshua Nichvolodoff, from the published paper — not written by the study's authors. Clinical review: not yet reviewed by a clinician.

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Sources

  1. Cardiovascular outcomes with tirzepatide versus dulaglutide in type 2 diabetes (SURPASS-CVOT). New England Journal of Medicine, December 18, 2025. https://pubmed.ncbi.nlm.nih.gov/41406444/ · DOI 10.1056/NEJMoa2505928 · PMID 41406444. Accessed November 2, 2026. Back to the text

Discussed in: Tirzepatide, explained · Mounjaro, explained

General information, not medical advice.