A Phase 2, Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy, Safety, and Tolerability of NBI-1065890 in Adult Participants With Tardive Dyskinesia

Key Inclusion Criteria: * Medically confirmed diagnosis of schizophrenia, schizoaffective disorder, bipolar disorder, or major depressive disorder (MDD) as defined in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) for at least 3 months prior to screening. * Medically confirmed diagnosis of neuroleptic-induced TD as defined in the DSM-5 for at least 3 months prior to screening. * Moderate or severe TD (AIMS Item 8, severity of abnormal movement overall) as assessed by a blinded, external AIMS video reviewer using a video recording of the participant's AIMS ass…