HTR2A and schizophrenia: In conclusion, in Caucasian patients with schizophrenia, the T/T genotype at rs7330461 has consistently been shown to be associated with an increased treatment response to pomaglumetad methionil compared to the A/A genotype, implicating the potential involvement of HTR2A genetic variants including rs7330461 in the treatment response to glutamatergic agents.