title: Targeted pharmacogenetic analysis of antipsychotic response in the CATIE study.
abstract: OBJECTIVE
  This study evaluated the impact of 6789 SNPs on treatment response to antipsychotics in Caucasian patients from the CATIE study.
  
  
  METHODS
  An Illumina (CA, USA) BeadChip was designed that targeted genes potentially impacting disease risk, disease presentation or antipsychotic response. SNPs tagged regions of linkage disequilibrium or functional variants not detectable using previous genotypes for CATIE. Change in Positive and Negative Syndrome scale total score was modeled using a mixed model repeated measures method that assumed a 30-day lag period. Genetic association analysis was performed using linear regression.
  
  
  RESULTS
  Association analysis identified 20 SNPs with p-values of ≤5 × 10(-4). Many of these are in genes previously implicated in schizophrenia and other neuropsychiatric diseases.
  
  
  CONCLUSIONS
  The targeted approach identified SNPs possibly influencing response to antipsychotic drugs in Caucasian patients suffering from schizophrenia. The findings support a biological link between disease risk and presentation and antipsychotic response.
authors.affiliation: SureGene, LLC, 600 Envoy Circle, Louisville, KY 40299, USA.
authors.forename: Qian
authors.initials: Q
authors.lastname: Liu
authors.forename: Maidar
authors.initials: M
authors.lastname: Jamba
authors.forename: Calvin
authors.initials: C
authors.lastname: Patrick
authors.forename: Saranya
authors.initials: S
authors.lastname: Padmanabhan
authors.forename: Mark D
authors.initials: MD
authors.lastname: Brennan
mesh_terms: D000328:Adult; D014150:Antipsychotic Agents / Q000008:administration & dosage*; D054316:Biomarkers, Pharmacological; D002986:Clinical Trials as Topic; D005260:Female; D056726:Genetic Association Studies; D006801:Humans; D015810:Linkage Disequilibrium; D008297:Male; D010597:Pharmacogenetics; D020641:Polymorphism, Single Nucleotide; D012559:Schizophrenia / Q000188:drug therapy* / Q000235:genetics*; D014481:United States; D044465:White People
chemical_list: D014150:Antipsychotic Agents; D054316:Biomarkers, Pharmacological