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Clinical potential of lurasidone in the management of schizophrenia

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Author(s): Samalin L | Garnier M | Llorca PM

Journal: Therapeutics and Clinical Risk Management
ISSN 1176-6336

Volume: 2011;
Issue: default;
Start page: 239;
Date: 2011;
Original page

ABSTRACT
Ludovic Samalin, Marion Garnier, Pierre-Michel LlorcaCentre Hospitalier Universitaire, Clermont-Ferrand, FranceAbstract: Lurasidone is a new second-generation antipsychotic approved in October 2010 by the Food and Drug Administration for the treatment of schizophrenia. Like other second-generation antipsychotics, lurasidone is a powerful antagonist of D2 dopamine and 5HT2A serotonin receptors, but differs from the other second-generation antipsychotics in its action profile for certain receptors. Lurasidone is the second-generation antipsychotic with the greatest affinity for 5HT7 receptors and has a high affinity for 5HT1A serotonin receptors, compatible with favorable effects on cognitive function and an antidepressant action. By contrast, lurasidone has a low affinity for α1 and α2C-adrenergic and 5HT2C serotonin receptors, and no affinity for histaminergic H1 or muscarinic M1 receptors, suggesting a better tolerability profile than the other second-generation antipsychotics. Lurasidone has demonstrated its efficacy in several short-term trials in acute schizophrenia, promptly and significantly reducing total Positive and Negative Syndrome Scale and Brief Psychiatric Rating Scale scores compared with placebo. Several long-term studies are in progress to assess its efficacy in the maintenance treatment of schizophrenic patients. The efficacy of lurasidone with regard to cognitive functions and depressive symptoms seems good, but requires further work. Lurasidone differs from the other second-generation antipsychotics by having a good tolerability profile, in particular for cardiometabolic tolerability. However, it seems to have a significant although moderate link with the occurrence of akathisia, extrapyramidal symptoms, and hyperprolactinemia at the start of treatment. This tolerance profile greatly broadens the scope of second-generation antipsychotics and so supports the view of some authors that the term “second-generation antipsychotic” is now outdated. Other therapeutic perspectives of lurasidone are assessed here, in particular bipolar depression.Keywords: lurasidone, second-generation antipsychotic, schizophrenia, efficacy, safety

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