Head-to-head evidence
Diastat vs Staccato Alprazolam
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.
Epilepsy
Shared mechanism: GABA-A receptor · full Epilepsy pipeline
Diastat
Marketed by Bausch Health
NCT03953820 · Phase 1/2 · completed
The study randomized participants to treatment sequences and used Diastat as an active comparator, but it was open-label and small, with 31 randomized participants. Its primary endpoints were pharmacokinetic measures rather than clinical seizure outcomes, and the registry does not clearly report whether the primary comparison met its prespecified statistical criteria.
Staccato Alprazolam
Developed by UCB
NCT03478982 · Phase 2 · completed
The study randomized participants to Staccato alprazolam or matching placebo and was described as quadruple-blind, with 156 participants enrolled and 38, 38, and 40 participants in the evaluable 1.0-mg, 2.0-mg, and placebo groups, respectively. Its primary clinical endpoint—seizure cessation within 2 minutes without recurrence for 2 hours—was statistically significantly better with both alprazolam doses than with placebo.
Next expected readout: October 2026 · NCT05077904 (registry estimate)
The full competitive landscape for each asset (every same-race competitor with aligned evidence, sortable) is on the asset pages: Diastat's landscape · Staccato Alprazolam's landscape