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Alkermes Presents Detailed Positive Results From Vibrance-2 Phase 2 Study of Alixorexton in Adults With Narcolepsy Type 2 at SLEEP 2026

$ALKSPress releaseJun 17, 2026, 4:15 PM ETRead the release

Alkermes announced positive detailed results from the Phase 2 Vibrance-2 study of alixorexton in adults with narcolepsy type 2. The study met its dual primary endpoints, demonstrating statistically significant and clinically meaningful improvements in wakefulness and excessive daytime sleepiness compared to placebo on the MWT and ESS scales.

Key figures

Drug Name
Alixorexton
Phase Of Trial
Phase 2
Indication
Narcolepsy Type 2 (NT2)
Study name
Vibrance-2
Doses tested
["10 mg","14 mg","18 mg"]
Patient count
93
Ess p value 18mg
p=0.046
Mwt p value 14mg
p=0.049
Mwt p value 18mg
p=0.047
Completion rate ole
~90%
Completion rate rdbt
>95%

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