01/04/2026 Alkermes announced initiation of Phase 3 Brilliance studies evaluating alixorexton for NT1 and NT2 Alkermes announced initiation of Phase 3 Brilliance studies evaluating alixorexton for NT1 and NT2 ( Ref ) Alkermes announced the initiation of the Phase 3 Brilliance studies program, which evaluated  the safety and efficacy of alixorexton (ALKS 2680; selective OX2R agonist) for the treatment of adult patients with narcolepsy type 1 (NT1) and narcolepsy type 2 (NT2) T