Prostate Active Surveillance Study

Inclusion criteria

• Histologically confirmed adenocarcinoma of the prostate from a prostate biopsy.
• Clinically localized prostate cancer: T1-2, NX or N0, MX or M0.
• No previous treatment for prostate cancer (including hormonal therapy, radiation therapy, surgery, or chemotherapy).
• ECOG Performance Status 0 or 1.
• Patient has elected Active Surveillance as preferred management plan for prostate cancer.
• Patient consent has been obtained according to local Institutional Review Board for acquisition of research specimens.
• Patient is accessible and compliant for follow-up.
• Prostate cancer diagnosis cannot be more than 3 years prior to baseline visit date.
• No more than two prostate biopsies including the initial biopsy in which cancer was diagnosed.
• If cancer diagnosis is more than one year before enrollment, there must be two prostate biopsies including the initial biopsy in which cancer was diagnosed and a subsequent biopsy. The subsequent biopsy may occur on the same day as the baseline visit.
• Biopsies must have at least 10 cores.

Exclusion criteria

• Unwillingness or inability to undergo serial prostate biopsy.
• History of other malignancies, except: adequately treated non-melanoma skin cancer or adequately treated superficial bladder cancer (Ta) or other solid tumors curatively treated with no evidence of disease for \> 5 years.