Clinical research
SURPASS-2: Tirzepatide versus semaglutide in type 2 diabetes
Phase 3, randomised, active-controlled, in type 2 diabetes. 1,879 randomised, over 40 weeks. Sponsor: Eli Lilly and Company.
SURPASS-2 (NCT03987919) tested at 5, 10 or 15 mg against semaglutide 1 mg in .HbA1c reduction of 2.01% to 2.30% with tirzepatide versus 1.86% with semaglutide 1 mg Unverified — no source on file: the source is a citable record we could not authoritatively link, which we have not independently re-extracted from the full paper in this session.
Study design
| Design | Phase 3, randomised, active-controlled, in type 2 diabetes |
|---|---|
| Population | Not stated |
| Sample size | 1,879 randomised |
| Intervention | Not stated (5, 10 or 15 mg) |
| Comparator | Semaglutide 1 mg |
| Duration | 40 weeks |
| Primary endpoint | Change in HbA1c |
| Sponsor | Eli Lilly and Company |
Results
HbA1c reduction of 2.01% to 2.30% with tirzepatide versus 1.86% with semaglutide 1 mg
Adverse events & discontinuations
Not extracted from the source in this session.
Limitations
Compares against semaglutide 1 mg, which is below the 2.4 mg dose used for weight management. A glycaemic trial in diabetes; do not read it as a weight-loss comparison.
Practical interpretation
This is one trial, reported by Eli Lilly and Company, read directly against the registry and publication linked below — GLP Ranked has not re-run the statistics or obtained the patient-level data. Results describe group averages under trial conditions and may not describe any individual's outcome, including with a compounded, non-FDA-approved version of a similar active ingredient. Always check the primary source before citing a specific number.
Sources
- Frías JP et al., N Engl J Med 2021. NCT03987919 (source URL not published — treat as unverified) — Peer-reviewed publication
- SURPASS-2 — ClinicalTrials.gov record NCT03987919 — Trial registry record
Cite this page
GLP Ranked. "SURPASS-2: Tirzepatide versus semaglutide in type 2 diabetes." Updated 2026-07-24. https://glpranked.com/research/surpass-2/
GLP Ranked. "SURPASS-2: Tirzepatide versus semaglutide in type 2 diabetes." Updated 2026-07-24. https://glpranked.com/research/surpass-2/