Assessment of Validity of AR-V7 in Tumor Cells as a Predictive Biomarker for Castration-Resistant Prostate Cancer

This cohort study examines whether an assay for the nuclear-localized androgen receptor splice variant 7 protein in circulating tumor cells can be used to estimate overall survival among patients with metastatic castration-resistant prostate cancer treated with taxanes vs androgen receptor signaling inhibitors.

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