Study Objective: This research is testing a new medicine called NBI-1117568 to see if it helps people with bipolar I disorder feel less manic. Mania is when someone feels super excited or has lots of energy. The study will compare this medicine to a placebo, which looks like medicine but doesn't have any active ingredients.
Who Can Join:- Adults who have been diagnosed with bipolar I disorder.
- Must have had at least one manic episode that needed treatment before.
- Should be experiencing a current manic episode, which might include feeling very excited or having mixed feelings.
- If you have other serious health issues or diseases.
- If bipolar I disorder is not your main diagnosis.
- If you've been hospitalized for mental health reasons for more than 30 days recently.
- Participants will be monitored for safety and effectiveness of the treatment.
- Some participants will receive a placebo instead of the actual medicine.
- It is important to check if you meet all the criteria before joining.