Genome-wide association study on antipsychotic-induced weight gain in the CATIE sample

Pharmacogenomics J. 2016 Aug;16(4):352-6. doi: 10.1038/tpj.2015.59. Epub 2015 Sep 1.

Abstract

Antipsychotic-induced weight gain (AIWG) is a common side effect with a high genetic contribution. We reanalyzed genome-wide association study (GWAS) data from the Clinical Antipsychotic Trials of Intervention Effectiveness (CATIE) selecting a refined subset of patients most suitable for AIWG studies. The final GWAS was conducted in N=189 individuals. The top polymorphisms were analyzed in a second cohort of N=86 patients. None of the single-nucleotide polymorphisms was significant at the genome-wide threshold of 5x10(-8). We observed interesting trends for rs9346455 (P=6.49x10(-6)) upstream of OGFRL1, the intergenic variants rs7336345 (P=1.31 × 10(-5)) and rs1012650 (P=1.47 × 10(-5)), and rs1059778 (P=1.49x10(-5)) in IBA57. In the second cohort, rs9346455 showed significant association with AIWG (P=0.005). The combined meta-analysis P-value for rs9346455 was 1.09 × 10(-7). Our reanalysis of the CATIE GWAS data revealed interesting new variants associated with AIWG. As the functional relevance of these polymorphisms is yet to be determined, further studies are needed.The Pharmacogenomics Journal advance online publication, 1 September 2015; doi:10.1038/tpj.2015.59.

Publication types

  • Meta-Analysis
  • Multicenter Study
  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Antipsychotic Agents / adverse effects*
  • Carrier Proteins / genetics
  • Europe
  • Female
  • Genome-Wide Association Study
  • Genotype
  • Humans
  • Male
  • Middle Aged
  • Pharmacogenomic Testing
  • Pharmacogenomic Variants / drug effects*
  • Phenotype
  • Polymorphism, Single Nucleotide*
  • Randomized Controlled Trials as Topic
  • Risk Assessment
  • Risk Factors
  • Schizophrenia / drug therapy*
  • United States
  • Weight Gain / drug effects*
  • Weight Gain / genetics*

Substances

  • Antipsychotic Agents
  • Carrier Proteins
  • IBA57 protein, human