Brexpiprazole Study

• Status: Recruiting
• Trial end date: 2022-09-19
• Target enrollment: 0
• Participant gender: All

Summary

The proposed study is a 3-site, 12-week, novel, feasibility, investigation of patients who have co-occurring diagnoses of schizophrenia and current substance use disorder (alcohol, cocaine, heroin, or cannabis). Eighty patients will be randomly assigned to switch to brexpiprazole (the brexpiprazole group) or remain on the same antipsychotic treatment (the control group). The study will be conducted at 3 sites in the US. The investigators expect to enroll 80 subjects across 3 sites. UMass Medical School, Worcester MA is the lead site. Sub-sites include Massachusetts General Hospital (MGH) and the University of North Carolina at Chapel Hill (UNC).

• Phase: Phase 4
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: University of Massachusetts, Worcester
• Collaborators: Massachusetts General Hospital; Otsuka Pharmaceutical Co., Ltd.; University of North Carolina, Chapel Hill
• Treatments: Antipsychotic Agents; Brexpiprazole

Criteria

Inclusion Criteria:

1. Age 18-65 years old

2. Meets the DSM-5 criteria for diagnoses of schizophrenia or schizoaffective disorder and substance use disorder (alcohol, cocaine, heroin, or cannabis) based on the Structured Clinical Interview for the DSM-5 (SCID)

3. Uses substance on at least 4 of the past 30 days prior to randomization with at least one use in the week prior to randomization for one of substances (cocaine, heroin, cannabis or alcohol) assessed by the TLFB interview

4. Stable dose of antipsychotic agent for at least one month

5. Well established compliance with outpatient medications

6. Female subjects of child-bearing potential are required to practice appropriate birth control methods during the study.

Exclusion Criteria:

1. Psychiatrically unstable

2. Currently meets DSM-5 criteria for any substance use disorder other than caffeine, nicotine, alcohol, cocaine, heroin and cannabis

3. Significant, unstable medical conditions including severe cardiovascular, hepatic, renal or other medical diseases

4. History of a seizure disorder

5. Pregnancy or breastfeeding

6. Currently on aripiprazole or cariprazine

7. Currently on medications to treat substance use (disulfiram, naltrexone, acamprosate,methadone, buprenorphine, varenicline or buproprion)