Association of dopamine-related genetic loci to dopamine D3 receptor antagonist ABT-925 clinical response
| Autor: | L Redden, J B Kraft, David A. Katz, B Spear, Anahita Bhathena, Y Wang, K B Idler, R R Holley-Shanks, S J Abel, Weining Z. Robieson |
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| Rok vydání: | 2013 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Genotype ABT-925 clinical response Pharmacology Catechol O-Methyltransferase Placebo Lower risk Polymorphism Single Nucleotide Piperazines polymorphism Young Adult Cellular and Molecular Neuroscience Double-Blind Method Dopamine receptor D3 Dopamine Internal medicine medicine Humans Alleles Biological Psychiatry Aged pharmacogenetics Psychiatric Status Rating Scales Dose-Response Relationship Drug Positive and Negative Syndrome Scale Receptors Dopamine D3 Antagonist dopamine D3 receptor Middle Aged schizophrenia Psychiatry and Mental health Pyrimidines Treatment Outcome Endocrinology Dopamine Antagonists Female Original Article Gene polymorphism Psychology Antipsychotic Agents medicine.drug |
| Zdroj: | Translational Psychiatry |
| ISSN: | 2158-3188 |
| DOI: | 10.1038/tp.2013.22 |
| Popis: | ABT-925, a selective dopamine D3 receptor (DRD3) antagonist, was tested in schizophrenia. A DRD3 gene polymorphism results in an S9G amino-acid change that has been associated with lower risk of schizophrenia, higher affinity for dopamine and some antipsychotics, and differential response to some antipsychotics. The effect of S9G genotype on response to ABT-925 was examined. DNA samples (N=117) were collected in a proof-of-concept, double-blind, randomized, placebo-controlled study of ABT-925 (50 or 150 mg QD) in acute exacerbation of schizophrenia. A pre-specified analysis assessed impact of genotype (SS versus SG+GG) on change from baseline to final evaluation for the Positive and Negative Syndrome Scale (PANSS) total score using analysis of covariance with genotype, treatment and genotype-by-treatment interaction as factors, and baseline score as covariate. Significant genotype-by-treatment interaction (P=0.015) was observed for change from baseline to final evaluation for the PANSS total score. Within subgroup analyses showed significant improvement from placebo in the SG+GG group treated with ABT-925 150 mg. More favorable clinical outcomes were observed in patients treated with ABT-925 150 mg who carried the DRD3 G allele than in those who carried the DRD3 SS genotype. |
| Databáze: | OpenAIRE |
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