| Inclusion Criteria: | 1) Patient must have androgen independent Stage IV prostate cancer, with anaplastic features as defined by at least one of the following: a) Histologic evidence of small cell(pure/mixed), locally advanced or metastatic; b) Any of the following at Dx: exclusive visceral mets, predominant lytic mets, bulky ( >/= 5 cm) lymphadenopathy, or bulky ( >/= 5 cm) high-grade (Gleason >/= 8) tumor mass in the prostate/pelvis c) Low PSA at Dx + high volume bone mets.
2) (#1 cont'd) d) Neuroendocrine markers in histology (+ Chromogranin A and/or Synaptophysin) or serum (abnl high serum Chromogranin A or Bombesin) at Dx or at progression plus any of the following: elevated serum LDH, malignant HyperCa+, or elevated serum CEA in the absence of other etiologies. e) Short interval (< 6 months) to androgen-independent progression following initiation of hormonal therapy with or without presence of neuroendocrine markers.
3) Patients with small cell carcinoma on histology are not required to have received prior androgen deprivation therapy (ADT). All other patients must have evidence of disease progression while on ADT or an unsatisfactory response to >/= 1 month of castration, as defined by lack of symptom control and/or serum tumor marker response of < 20% (confirmed by a second value drawn on a different day).
4) Zubrod performance status of </= 2.
5) Normal EKG or, if EKG is suggestive of cardiomyopathy, patient has a resting Left Ventricular Ejection Fraction (LEVF) >/= 50% within 4 months.
6) Patient has all of the following pretreatment laboratory data within 14 days before registration: • Absolute neutrophil count (ANC) >=1,500/mm^3.(unless due to bone marrow infiltration by tumor, in which case ANC >/= 500/mm^3 are allowed). • Platelets >=100,000/mm^3 (unless due to bone marrow infiltration by tumor, in which case platelets >/= 20,000/mm^3 are allowed)
7) (#7 cont'd) • Total bilirubin </= 2 mg/dl; if greater, conjugated bilirubin should be <= 1.0 mg/dL, • SGPT (ALT) and/or SGOT (AST) </= 4 x the ULN. • Creatinine clearance >/= 40 (either measured or calculated by Cockcroft formula) • Castrate levels of serum testosterone (</= 50ng/mL) if no small cell elements on histology. (If small cell, testosterone > 50ng/mL)
8) Patient has given voluntary written informed consent before performance of any study-related procedure not part of standard medical care. |