Inclusion Criteria:

          -  Men ≥ 18 years of age at time of informed consent

          -  For Part 1 and Part 2: men with metastatic castration resistant prostate cancer
             (mCRPC) with histologically or cytologically confirmed adenocarcinoma of the prostate
             as defined by one or more of the Prostate Cancer Clinical Trials Working Group 3
             (PCWG3) criteria

          -  Patients with treated brain metastasis or LMD are eligible if brain imaging shows no
             evidence of progression

          -  Must have prostate-specific antigen (PSA) and/or radiographic progression on AT LEAST
             One novel androgen receptor (AR)-targeted therapy (abiraterone acetate, enzalutamide).

          -  Eastern Cooperative Oncology Group performance status of 0-1

          -  Adequate liver function

          -  Adequate hematopoietic function

          -  Testosterone level ≤ 50 ng/mL (or 1.73 nmol/L)

          -  Patient has a life expectancy of greater than 12 weeks

        Exclusion Criteria:

          -  Patients whose tumors solely exhibit neuroendocrine differentiation or small cell
             features by histopathology

          -  Patients with new or progressive brain metastasis or Leptomeningeal Disease (LMD)

          -  Patients with a history of clinically significant cardiovascular disease such as
             symptomatic congestive heart failure, uncontrolled hypertension, unstable angina
             pectoris, history of stroke or myocardial infarction within 6 months of enrollment

          -  Patients with peripheral neuropathy CTCAE Grade >/= 2

          -  Patients with a known history of hypersensitivity, allergy or intolerance to CCW702 or
             its excipients

          -  Patients with untreated or imminent spinal cord compression