Head-to-head evidence
insulin degludec vs Insulin Efsitora Alfa
Same mechanism, same race: design-graded trial evidence for both assets, with the grading rationale shown. Grades describe the quality of the evidence, never the merits of either security.
Type 2 Diabetes
Shared mechanism: Insulin receptor (basal) · full Type 2 Diabetes pipeline
insulin degludec · Tresiba
Marketed by Novo Nordisk
NCT00982644 · Phase 3 · completed
The trial was randomized and actively controlled, with 1,030 participants, but it was not blinded and its primary endpoint was the surrogate measure of change in HbA1c rather than a hard clinical outcome. HbA1c changed by -1.06% with insulin degludec versus -1.19% with insulin glargine, but no statistical comparison is reported, so whether the primary endpoint was met is unclear.
Next expected readout: March 2027 · NCT07032688 (registry estimate)
Insulin Efsitora Alfa
Developed by Eli Lilly
NCT05275400 · Phase 3 · completed
The study randomized 986 participants to efsitora or active-control insulin degludec, but treatment was open-label rather than blinded. The primary HbA1c noninferiority endpoint was met, with a treatment difference of -0.089 percentage points and a 95% confidence interval of -0.191 to 0.013 within the prespecified 0.4% margin; the primary endpoint was a surrogate measure.
The full competitive landscape for each asset (every same-race competitor with aligned evidence, sortable) is on the asset pages: insulin degludec's landscape · Insulin Efsitora Alfa's landscape