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Clozapine in Older Patients With Psychosis and Behavioral Disruption
Carl Salzman1, Bernard Vaccaro1, Jonathan Lieff1
1Department of Psychiatry, Harvard Medical School, Boston, MA.
Summary
Clozapine effectively managed severe behavioral disruption in older adults with psychosis, though some experienced side effects like leukopenia. This suggests clozapine
Area of Science:
- Geriatric Psychiatry
- Pharmacology
- Clinical Psychology
Background:
- Severe behavioral disruption in older adults often stems from psychotic symptoms.
- Clozapine is an atypical antipsychotic with a complex side effect profile.
- Limited data exists on clozapine's efficacy and safety in elderly populations.
Purpose of the Study:
- To evaluate the effectiveness of clozapine in managing severe behavioral disruption in older patients.
- To assess the safety and tolerability of clozapine in this demographic.
- To identify potential risks associated with clozapine use in the elderly.
Main Methods:
- Retrospective chart review of 20 older patients treated with clozapine.
- Analysis of clozapine dosage, duration of treatment, and hospitalization length.
- 12-month follow-up post-discharge to monitor behavioral and psychotic symptoms, and adverse events.
Main Results:
- Significant behavioral improvement observed in all patients.
- Modest reduction in psychotic symptoms (hallucinations, delusions).
- Adverse events included respiratory symptoms (n=2), seizures (n=1), and leukopenia (n=3), leading to clozapine discontinuation in affected individuals.
Conclusions:
- Clozapine appears potentially useful for controlling behavioral disruption in older patients with psychosis.
- Older patients may have an increased risk of leukopenia due to higher clozapine and norclozapine blood levels.
- Careful monitoring for adverse events, particularly leukopenia, is crucial in elderly patients receiving clozapine.
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