Head-to-head evidence
Sitagliptin vs Vildagliptin
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: DPP-4 · full Type 2 Diabetes pipeline
Sitagliptin · Januvia
Marketed by Merck & Co.
NCT00087516 · Phase 3 · completed
The trial randomized 741 participants to double-blind sitagliptin or placebo groups, providing a substantial controlled comparison. The primary endpoint, change in A1C at week 24, was statistically favorable for both sitagliptin doses (p<0.001), but A1C is a surrogate endpoint, so the evidence is rated moderate rather than strong.
Next expected readout: October 2026 · NCT07711171 (registry estimate)
Vildagliptin · Galvus
Developed by Novartis
NCT00099866 · Phase 3 · completed
The study was randomized and double-blind, with an active metformin comparator and 570 participants. Its primary endpoint was the surrogate measure of HbA1c change, and because no trial results are posted, it cannot be determined whether the primary comparison was favorable.
The full competitive landscape for each asset (every same-race competitor with aligned evidence, sortable) is on the asset pages: Sitagliptin's landscape · Vildagliptin's landscape