A Phase 1/2 Study of Picoplatin and Docetaxel (With Prednisone) in Subjects With Chemotherapy-Naive Metastatic Hormone-Refractory Prostate Cancer
- Histologically or cytologically confirmed adenocarcinoma of the prostate.
- Radiologic evidence of metastatic disease (Jewett-Whitmore Stages D1-D2 or TNM Stage
N1-3 or M1).
- Disease progression or recurrence documented by either: increasing serum PSA on three
consecutive measurements each obtained at least one week apart, or findings on
radiographic imaging studies.
- Non-surgically castrate subjects must be receiving androgen ablation therapy as
- Adequate hormonal therapy as documented by a castrate level of serum testosterone
(all subjects without surgical castration must have a serum testosterone less than 50
- At least 4 weeks must have elapsed after the withdrawal of antiandrogens (6 weeks in
the case of bicalutamide).
- Age 18 years and over. Subjects older than 80 years should be entered on study only
if considered "physiologically appropriate" for combination chemotherapy.
- ECOG performance score (PS) of 0 or 1.
- Stable levels of pain for at least 7 days before study entry.
- Life expectancy more than 3 months.
- At least 28 days must have elapsed since prior radiotherapy.
- At least 28 days must have elapsed since any prior investigational agent.
- Absolute neutrophil count (ANC) at least 1.5 x 10^9th/L.
- Platelet count at least 100 x 10^9th/L.
- Hemoglobin at least 10 g/dL.
- Serum AST and ALT levels ≥ 1.5 times upper limit of normal (ULN).
- Serum bilirubin ≤ ULN.
- Serum creatinine ≤ ULN.
- All subjects must agree to use appropriate birth control methods while on study and
until 1 month after completion of study chemotherapy.
- Prior treatment with cytotoxic agents (except estramustine), radioisotopes, or
biological therapies other than hormones.
- Clinical evidence of brain or leptomeningeal metastases.
- Symptomatic peripheral neuropathy of Grade 2 or higher.
- History of another cancer within the preceding 5 years, except for superficial skin
- Known hypersensitivity to drugs formulated with Polysorbate 80.
- Prior radiotherapy that included ≥ 30% of the bone marrow (e.g., the whole of the
pelvis or half of the spine).
- Uncontrolled intercurrent illness (e.g., active infection).
- Serious medical or psychiatric illness that could potentially interfere with the
completion of the study treatment according to this protocol.
- History of serious cardiac disease, defined as myocardial infarction within six
months of enrollment, congestive heart failure classified by the New York Heart
Association as Class III or IV, uncontrolled cardiac arrhythmias, poorly controlled
or unstable angina, or electrocardiographic evidence of acute ischemia.