Clozapine  for the treatment of schizophrenia.
BACKGROUND
Despite considerable progress in the pharmacological treatment of schizophrenia, about 30% of patients are minimally responsive to antipsychotics and there is still an excessively high rate of mortality in schizophrenia patients. Clozapine , a D(2)-5HT(2) antagonist, was the first antipsychotic to demonstrate efficacy in treatment-resistant patients, and to be associated with the lowest risk of death.


METHODS
The pharmacodynamics, pharmacokinetics, clinical efficacy, safety and cost-effectiveness of clozapine are covered in this article, based on a literature review (PubMed) from 1975 to 2012. Pivotal, as well as supporting, randomized controlled trials are reviewed, along with observational and/or naturalistic safety studies. This review of clozapine will allow the reader to determine the place for clozapine in the schizophrenia treatment landscape.


CONCLUSIONS
Studies conducted so far suggest that clozapine is the treatment of choice for schizophrenic patients who are refractory to treatment, display violent behaviors, or who are at high risk of suicide. However, it is also the antipsychotic with the worst side effect profile, the highest risk of complications, and the most difficult to prescribe. Experience with clozapine should therefore be included in the education of future physicians.
Pôle Universitaire de Psychiatrie - Solaris, Hôpital Sainte Marguerite, Marseille, France. eric.fakra@ap-hm.fr
Eric
E
Fakra
Jean-Michel
JM
Azorin
D000818:Animals; D014150:Antipsychotic Agents / Q000009:adverse effects / Q000191:economics / Q000627:therapeutic use*; D003024:Clozapine / Q000009:adverse effects / Q000191:economics / Q000627:therapeutic use*; D003362:Cost-Benefit Analysis; D018492:Dopamine Antagonists / Q000009:adverse effects / Q000191:economics / Q000627:therapeutic use; D065127:Dopamine D2 Receptor Antagonists; D004351:Drug Resistance; D006801:Humans; D012559:Schizophrenia / Q000188:drug therapy* / Q000191:economics / Q000503:physiopathology; D058830:Serotonin 5-HT2 Receptor Antagonists / Q000009:adverse effects / Q000191:economics / Q000627:therapeutic use; D000092864:Suicide Prevention
D014150:Antipsychotic Agents; D018492:Dopamine Antagonists; D065127:Dopamine D2 Receptor Antagonists; D058830:Serotonin 5-HT2 Receptor Antagonists; D003024:Clozapine