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Clozapine Use and Forensic Outcomes in Psychiatric Inpatients Deemed Incompetent to Stand Trial
Amarpreet Singh1, Darci Delgado1, Maria I Ventura1
1Dr. Singh is Assistant Medical Director, DSH-Napa, Dr. Delgado is Senior Psychologist, Supervisor, Clinical Operations, Dr. Meyer is Psychopharmacology Consultant, and Dr. Schwartz is Psychopharmacology Consultant, California Department of State Hospitals, Patton, CA. Dr. Ventura is Data Analysis Supervisor, and Mr. Williams is Staff Research Associate, Department of Psychiatry and Behavioral Sciences, UC Davis School of Medicine, Davis, CA.
Summary
Clozapine effectively treats incompetent to stand trial (IST) patients with schizophrenia, restoring competency in over a third. This study highlights the importance of offering clozapine to forensic patients with severe mental illness.
Area of Science:
- Forensic Psychiatry
- Psychopharmacology
- Mental Health Law
Background:
- Referrals for competency restoration are rising, with schizophrenia being a primary diagnosis among incompetent to stand trial (IST) patients.
- Treatment resistance affects 25% of schizophrenia patients, impacting legal system processes.
- Clozapine is highly effective for treatment-resistant schizophrenia but underutilized in forensic settings.
Purpose of the Study:
- To evaluate the clinical and forensic outcomes of incompetent to stand trial (IST) patients newly started on clozapine.
- To assess the efficacy and safety of clozapine treatment in a forensic psychiatric population.
- To determine the rate of restoration to trial competency among IST patients treated with clozapine.
Main Methods:
- Retrospective chart review of IST admissions to a California hospital from 2014-2018.
- Analysis of patients newly initiated on clozapine during their admission.
- Examination of clinical outcomes (discharge on clozapine) and forensic outcomes (restoration to trial competency).
Main Results:
- 191 IST patients were newly started on clozapine, 92.7% with schizophrenia or other psychoses.
- Over 90% of patients were discharged while on clozapine.
- 36.1% of patients were restored to trial competency, achieving the shortest length of stay.
Conclusions:
- Clozapine is a viable and effective treatment for IST patients with severe mental illness, including those with treatment resistance.
- Forensic programs have a medical responsibility to offer clozapine trials to eligible IST patients.
- Successful clozapine treatment can lead to restoration of competency and reduced length of stay in forensic settings.
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