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  • Title: Trends in pharmacotherapy in patients referred to a bipolar specialty clinic, 2000-2011.
    Author: Hooshmand F, Miller S, Dore J, Wang PW, Hill SJ, Portillo N, Ketter TA.
    Journal: J Affect Disord; 2014 Feb; 155():283-7. PubMed ID: 24314912.
    Abstract:
    OBJECTIVE: To assess mood stabilizer (MS) and second-generation antipsychotic (SGA) prescribing trends in bipolar disorder (BD) outpatients referred to a bipolar disorder specialty clinic over the past 12 years. METHOD: BD outpatients referred to the Stanford University Bipolar Disorder Clinic during 2000-2011 were assessed with the Systematic Treatment Enhancement Program for BD (STEP-BD) Affective Disorders Evaluation. Prescription rates for MSs and SGAs were compared during the first (2000-2005) and second (2006-2011) six years. RESULTS: Among 597 BD patients (mean±SD age 35.4±8.6 years; 58.1% female; 40.7% Type I, 43.6% Type II, and 15.7% Type Not Otherwise Specified; taking 2.6±1.7 prescription psychotropic medications), lamotrigine, quetiapine, and aripiprazole usage more than doubled, from 14.7% to 37.2% (p<0.0001), 7.2% to 19.7% (p<0.0001), and 3.1% to 10.9% (p=0.0003), respectively, while olanzapine and risperidone use decreased by more than half from 15.0% to 6.6% (p=0.0043), and from 8.7% to 3.8% (p=0.039), respectively. SGA use increased from 34.1% to 44.8% (p=0.013), although MS use continued to be more common (in 65.2% for 2006-2011). Use of other individual MSs and SGAs and MSs as a class did not change significantly. CONCLUSIONS: Over 12 years, in patients referred to a BD specialty clinic, lamotrigine, quetiapine, and aripiprazole use more than doubled, and olanzapine and risperidone use decreased by more than half. Tolerability (for lamotrigine, aripiprazole, olanzapine, and risperidone) more than efficacy (for quetiapine) differences may have driven these findings. Additional studies are needed to explore the relative influences of enhanced tolerability versus efficacy upon prescribing practices in BD patients.
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