This study is to find out if a new treatment called BHV-7000 is safe and works well for people having manic episodes due to bipolar disorder I. A manic episode is when someone feels extremely excited or irritable. To join, you need to be in the hospital for mania, be between 18-75 years old, and have a healthy weight. You must have had at least one mood episode before and your current mania should not last more than 12 weeks. You also need to stop any other mental health medicines during the study. You cannot join if you have had very frequent mood changes, have certain brain disorders, or any other health issue that might affect the study.

• The treatment focuses on those currently hospitalized for mania.
• Participants must stop other mental health medications.
• Medical conditions or frequent mood changes may disqualify you.