Long-term Safety and Tolerability of BHV-7000

Key Inclusion Criteria: * Subjects who completed the double-blind phase (DBP) of prior parent study, BHV7000-302 or BHV7000-303. * (FOCBP) Females of Child Bearing Potential must have a negative urine pregnancy test at the Baseline/Day 0 visit Key Exclusion Criteria: * Any condition, such as an ongoing AE with/without sequelae, or is poorly tolerating IP in the double-blind phase of the parent study, that would interfere with the subject's ability to comply with study instructions, place the subject at unacceptable risk, and/or confound the interpretation of safety or efficacy data from the study, as judged by the Investigator. * Any medical condition, based on the judgement of the Investigator, that would confound the ability to adequately assess safety and efficacy outcome measures