A study to determine if BHV- 7000 is safe and tolerable in adults with refractory focal onset epilepsy

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