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  • Title: Treatment of a first episode of psychotic illness with quetiapine: an analysis of 2 year outcomes.
    Author: Kopala LC, Good KP, Milliken H, Buiteman C, Woodley H, Rui Q, Whitehorn D, Love L, Balshaw R, Kiss I, Honer WG.
    Journal: Schizophr Res; 2006 Jan 01; 81(1):29-39. PubMed ID: 16263246.
    Abstract:
    BACKGROUND: The first episode of a psychotic disorder provides a unique opportunity to initiate optimal treatment but when a new medication becomes available, little data exist to guide the appropriate use in this population. OBJECTIVES: The objectives were to determine the optimal doses and titration of quetiapine for this group and to measure outcomes (including symptom response, social functioning, mood alterations, motor symptoms, metabolic parameters and cognitive functioning) over 2 years of treatment with quetiapine. DESIGN: Thirty nine subjects with a first episode of psychosis referred to the Nova Scotia Early Psychosis Program in Halifax, Canada, were invited to participate in this study. Standardized clinical, laboratory, and neuropsychological assessments were performed at baseline and following treatment with quetiapine at intervals out to 2 years. RESULTS: Quetiapine was effective in treating the psychotic and mood symptoms while not causing extra-pyramidal signs or symptoms (EPSS). Pre-existing motor dysfunction improved. No anticholinergic medications were required. Several domains of cognitive function also improved (sustained attention, the number of perseverative errors, visuomotor speed and sequencing, verbal fluency and verbal memory). Weight gain was observed along with increases in cholesterol levels but there was no glucose dysregulation. CONCLUSIONS: The results of this two year, naturalistic study of people with a first episode of psychosis indicated that quetiapine was well tolerated and effective for this population. Significant improvements in cognitive functioning also provided evidence for potential longer-term benefits of early and optimal treatment with this agent. However, monitoring metabolic parameters, as recommended for other atypicals, is likely prudent.
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