Identification, Assessment, and Treatment of Tardive Dyskinesia With Deutetrabenazine in Adults With Intellectual/Developmental Disabilities and Co-occurring Psychiatric and/or Behavioral Disorders
The primary goal of this study is to investigate the efficacy of deutetrabenazine treatment of TD in this previously untreated patient population. Compare movement disorder deutetrabenazine treatment response in persons with IDD to response seen in patients without IDD treated with deutetrabenazine in other treatment settings (per literature review). Compare global deutetrabenazine treatment response with validated instruments. In addition, we plan to: * Assess the safety of deutetrabenazine in the treatment of TD in persons with IDD. * Assess change in Activities of Daily Living (ADLs) in persons with IDD and TD treated with deutetrabenazine, utilizing a validated ADL instrument. * Assess change in Quality of Life (QOL) in persons with IDD and TD treated with deutetrabenazine, utilizing a validated QOL instrument. * Assess caregiver burden with a validated caregiver burden instrument. In this study, 25 participants with IDD and TD will undergo Deutetrabenazine treatment for 24 weeks. The participants will be seen for a total of 5 visits: at baseline, and at follow up visits at 3 weeks, 6 weeks, 12 weeks, and 24 weeks. This study does not include a comparison group. Therefore, researchers will compare the response of the study participants to deutetrabenazine treatment with those from a previous reported work that resulted in the FDA approval of this medication. This will be an open-label, Phase 4 study.
• Diagnosis of IDD (IQ \< 70; social/adaptive dysfunction, onset \< age 22) as per DSM-5
• Clinical diagnosis of Tardive Dyskinesia (TD) per DSM-5 for at least 3 months before study inclusion (presence of movement disorder for at least 3 months, in absence of previous formal diagnosis of TD).
• Eligible to receive deutetrabenazine, according to current product labeling Stable doses of all psychotropic medications for minimum of three months before study inclusion
• Willing to remain on stable doses of all psychotropics for 24 weeks of study. If female of childbearing age, practicing acceptable form of birth control throughout study duration.
• Subject able to comply with scheduled visits and assessments
• Consent of subject, or legally authorized representative to study protocol.
• Able to understand and answer questionnaires
• Able to comply with scheduled visits
• Ability to be primary Caregiver for 24 weeks of study