DRD1 rs4532 polymorphism: a potential pharmacogenomic marker for treatment response to antipsychotic drugs.

We investigated the association of dopamine receptor D1 gene (DRD1) rs4532 polymorphism with antipsychotic treatment response in schizophrenia. We have analyzed 124 patients with schizophrenia, consisting of 59 treatment resistant (TR) and 65 non-TR. We found an association between G-allele and TR schizophrenia (p=0.