Head-to-head evidence
Insulin Efsitora Alfa vs Insulin Lispro
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 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.
Insulin Lispro · Humalog
Marketed by Eli Lilly
NCT00551356 · Phase 3 · completed
The study was randomized and compared two active treatments, but it was open-label, enrolled 53 participants, and used a glucose-excursion measure rather than a hard clinical endpoint. Because the registry provides no results, it is not possible to determine whether the primary endpoint was met.
Next expected readout: December 2026 · NCT06251635 (registry estimate)
The full competitive landscape for each asset (every same-race competitor with aligned evidence, sortable) is on the asset pages: Insulin Efsitora Alfa's landscape · Insulin Lispro's landscape