Head-to-head evidence
liraglutide vs lixisenatide
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: GLP-1 receptor · full Type 2 Diabetes pipeline
liraglutide · Saxenda / Victoza
Marketed by Novo Nordisk
NCT00318461 · Phase 3 · completed
This was a large (n=1091), randomized, double-blind, parallel-group trial with both a placebo-controlled comparison (liraglutide + metformin vs metformin + liraglutide placebo) and an active-controlled comparison (glimepiride + metformin). The primary endpoint was change in HbA1c at week 26, a hard, regulator-accepted outcome for type 2 diabetes. The prespecified primary comparisons for liraglutide 1.2 mg and 1.8 mg/day were met: both were significantly superior to metformin alone (p<0.0001) and non-inferior to glimepiride + metformin within the 0.4% margin. The 0.6 mg dose was superior to metformin but did not meet non-inferiority against glimepiride + metformin, which does not negate the positive results for the clinically relevant doses.
Next expected readout: June 2027 · NCT03883412 (registry estimate)
lixisenatide · Adlyxin / Lyxumia
Marketed by Sanofi
NCT00707031 · Phase 3 · completed
The 639 participants were randomly assigned to lixisenatide or active treatment with exenatide, but the study was not blinded. The primary HbA1c comparison met its prespecified non-inferiority criterion, with a between-group difference of 0.17 percentage points and a 95% confidence interval of 0.033 to 0.297, but HbA1c is a surrogate endpoint rather than a hard clinical outcome.
Next expected readout: June 2027 · NCT07173712 (registry estimate)
The full competitive landscape for each asset (every same-race competitor with aligned evidence, sortable) is on the asset pages: liraglutide's landscape · lixisenatide's landscape