A Study for the Participants With Metastatic Hormone Sensitive Prostate Cancer (mHSPC) Treated With Androgen Deprivation Therapy (ADT) Plus Apalutamide or Enzalutamide

Inclusion Criteria: * Must have a histologically or cytologically-confirmed diagnosis of adenocarcinoma of the prostate * Must have documented metastatic hormone-sensitive prostate cancer (mHSPC) * Must have agreed with the treating physician the initiation of either apalutamide or enzalutamide (plus androgen deprivation therapy \[ADT\]) treatment, per the treating physician's decision, prior to enrollment into the study * Must sign, and/or their legally acceptable representative where applicable must sign, a participation agreement/ informed consent form (ICF) allowing data collection and source data verification in accordance with local requirements * Must have baseline prostate-specific antigen (PSA) captured within 30 days prior to the first administration of apalutamide or enzalutamide * Must agree to complete patient-reported outcomes (PROs) during the study, including the baseline ones collected before the first administration of apalutamide or enzalutamide Exclusion Criteria: * Has already received or is currently receiving either apalutamide or enzalutamide, or any other novel hormonal treatments (including but not limited to abiraterone acetate and darolutamide) * Is currently receiving an active treatment for prostate cancer as part of an interventional study * Has a progression under ADT treatment (and thus became castrate-resistant) prior to start of apalutamide or enzalutamide treatment * Has received ADT treatment for mHSPC for more than 2 months prior to ap…