Citation

Franklin R, Zorowitz S, Corse AK, Widge AS, Deckersbach T. Neuropsychiatr. Dis. Treat. 2015; 11: 2143-2152.

Copyright

(Copyright © 2015, Dove Press)

DOI

10.2147/NDT.S50961

PMID

unavailable

Abstract

Bipolar disorder (BD) is a debilitating and difficult-to-treat psychiatric disease that presents a serious burden to patients' lives as well as health care systems around the world. The essential diagnostic criterion for BD is episodes of mania or hypomania; however, the patients report that the majority of their time is spent in a depressive phase. Current treatment options for this component of BD have yet to achieve satisfactory remission rates. Lurasidone is a drug in the benzisothiazole class approved by the US Food and Drug Administration in June 2013 for the acute treatment of bipolar depression. Its pharmacological profile features high-affinity antagonism at D2, 5-HT2A, and 5-HT7 receptors; moderate-affinity antagonism at α2C-adrenergic receptors; low- to very low-affinity antagonism at α1A-adrenergic, α2A-adrenergic, H1, M1, and 5-HT2C receptors; and high-affinity partial agonism at 5-HT1A. Preliminary findings from two recent double-blinded clinical trials suggest that lurasidone is efficacious in treating bipolar I depression, with clinical effects manifesting as early as the first 2-3 weeks of treatment (as measured by the Montgomery-Åsberg Depression Rating Scale and Clinical Global Impressions Scale for use in bipolar illness). Its therapeutic benefit appears to be comparable to the current US Food and Drug Administration-indicated treatments: quetiapine and olanzapine-fluoxetine, according to a measure of effect size known as number needed to treat. These studies reported relatively limited extrapyramidal and metabolic side effects as a result of treatment with lurasidone, with the most common side effect being nausea. Safety data drawn from these studies, as well as a more extensive body of schizophrenia research, indicate that in comparison with other atypical antipsychotics, treatment with lurasidone is less likely to result in metabolic side effects such as weight gain or disturbances of serum glucose or lipid levels. Lurasidone holds clinical potential as a novel, efficacious pharmacological treatment for bipolar depression. However, current data on its use for the treatment of BD are limited, and more extensive research, both longer in duration as well as independently conducted, is needed. © 2015 Ogawa et al.

Language: en

Keywords

human; suicide; Bipolar disorder; schizophrenia; suicidal behavior; bipolar depression; serotonin 1A receptor; Bipolar depression; cholesterol blood level; prolactin; triacylglycerol; drug metabolism; sedation; headache; quetiapine; somnolence; nonhuman; drug safety; placebo; drug efficacy; drug receptor binding; extrapyramidal symptom; drug tolerability; nausea; tremor; weight gain; akathisia; low density lipoprotein cholesterol; bipolar I disorder; side effect; glucose blood level; evidence based medicine; hyperlipidemia; parkinsonism; cytochrome P450 3A4; drug half life; glucose; body weight disorder; dopamine 2 receptor; monotherapy; Article; binding affinity; serotonin 2A receptor; fluoxetine plus olanzapine; receptor blocking; randomized controlled trial (topic); Atypical antipsychotic; lurasidone; serotonin 7 receptor; Lurasidone