Longitudinal changes in DNA methylation associated with clozapine use in treatment-resistant schizophrenia from two international cohorts

126 Peripheral whole blood samples from 26 individuals across two independent cohorts were collected prior to clozapine initiation, 4-12 weeks after initiation, and a 6 months after initiation. Bisulphite converted DNA from the 126 samples were hybridised to either the Illumina Infinium HumanMethylation450 BeadChip (KCL samples) or the Illumina Infinium HumanMethylationEPIC BeadChip (UMC)