Testing a medication to reduce involuntary movements caused by psychiatric drugs

This trial is testing a medication called valbenazine to see if it can help reduce involuntary movements (like twitching or jerking) that sometimes develop as a side effect of psychiatric medications. The study will look at how well the medication works based on both what doctors observe and how patients themselves feel over 24 weeks.

Some people taking medications for conditions like schizophrenia, bipolar disorder, or depression develop involuntary movements as a side effect. This medication is already approved for this condition, but researchers want to understand how well it works in people who are still having symptoms despite other treatments they may have tried.