Repertoire and clinical hierarchy of AR locus alterations in castration-resistant prostate cancer

BACKGROUND: Somatic alterations to the androgen receptor (AR) gene are pivotal drivers of treatment resistance in metastatic castration-resistant prostate cancer (mCRPC), but their prevalence, clinical impact, and etiology remain incompletely understood. PATIENTS AND METHODS: We assembled a meta-cohort of 3048 plasma cell-free DNA and matched leukocyte DNA samples from 1751 mCRPC patients, accrued from eight clinical trials and a regional …