Controlled Trial of Brexpiprazole For The Treatment of Co-occurring Schizophrenia and Substance Use Disorder

U

University of Massachusetts, Worcester

Status and phase

Completed
Phase 4

Conditions

Schizophrenia
Schizoaffective Disorder
Substance Use Disorders

Treatments

Drug: Brexpiprazole
Other: Treatment as Usual

Study type

Interventional

Funder types

Other
Industry

Identifiers

NCT03526354
14611

Details and patient eligibility

About

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).

Full description

STUDY OBJECTIVES The primary objectives of the study include: examine the effect of brexpiprazole treatment on the number of days of substance use in the past week as measured by the Timeline Follow-Back (TLFB) assessment; examine the effect of brexpiprazole treatment on substance craving using 100-mm visual analogue scale (VAS). The secondary objectives are to examine the effect of brexpiprazole treatment on: the dollar amount spent on substances in the past week; the psychiatric symptoms as measured using PANSS

Enrollment

52 patients

Sex

All

Ages

18 to 65 years old

Volunteers

No Healthy Volunteers

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)

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

52 participants in 2 patient groups

Experimental
Experimental group
Description:
Brexpiprazole 4mg daily for 12 weeks
Treatment:
Drug: Brexpiprazole
Treatment as Usual
Active Comparator group
Description:
Stay on current antipsychotic medication for 12 weeks
Treatment:
Other: Treatment as Usual

Trial contacts and locations

4

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Central trial contact

Abaigeal Grant, BA

Data sourced from clinicaltrials.gov

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