RecruitingPhase 2Drug trialHyperpolarized (HP) 13C Pyruvate Magnetic Resonance Imaging (MRI) for Response Monitoring to Neoadjuvant AbirateroneThis study will evaluate the use of hyperpolarized 13C MRI (HP 13C MRI) and the HP-derived 13C pyruvate-to-lactate conversion rate constant (kPL) as an early response biomarker in men with treatment-naïve, high-risk, localized or locally advanced prostate cancer receiving neoadjuvant therapy.