Evaluation of a Targeted Magnetic Resonance Imaging Contrast Agent in Prostate Cancer Patients

Inclusion criteria * Male subjects aged \>18 years. * Patients with confirmed Gleason score of 8 - 10 prostate cancer, had at least one prostate mpMRI and one prostate biopsy. * Ability to lie still for MRI scanning. * Patients must be able to provide written informed consent. * Glomerular filtration rate (GFR) \> 60 mL/min within a 30 days of the research MRI. Key exclusion criteria * Any diagnosis of active acute, chronic, or sub-chronic kidney or liver disease. * Documented acute prostatitis, symptomatic or severe benign prostatic hyperplasia (BPH) or urinary tract infections. * Patients with uncontrolled diabetes or hypertension. * Patients with active non-prostate malignancy. * Patients with contraindications for MRI including implantable pace makers, cochlear implants. * Patients with uni- or bilateral hip prosthesis. * Subjects with other significant medical conditions that would create unacceptable operative risk, compromise retention on study or compromise study related assessments. * Major surgery within 4 weeks prior to entry on this study or patients who have not recovered from side effects of such therapy. * Prostate biopsy within 4 weeks prior to entry on this study in which inflammation might affect MRI result. * Subjects who received or will receive any other MRI contrast agent within 48 hours prior to MT218 injection or up to 24 hours after MT218 injection. * Is determined by the investigator that the patient is clinically unsuitable for the study. * Is incapable of understanding the language in which the information for the patient is given. * Participation in a concurrent clinical trial or in another trial within the past 30 days.