Journal
UROLOGIC ONCOLOGY-SEMINARS AND ORIGINAL INVESTIGATIONS
Volume 32, Issue 1, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.urolonc.2012.11.017
Keywords
Excision repair polymorphism; Prostate cancer; Chemotherapy; Phase II clinical trial
Categories
Funding
- Center for Cancer Research, National Cancer Institute, National Institutes of Health
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Background: Satraplatin is an oral platinum compound that has demonstrated efficacy and tolerability in prostate cancer. Preclinical synergy between bevacizumab and platinum has been noted. Methods: Docetaxel-pretreated metastatic castrate-resistant prostate cancer patients with disease progression were eligible. Satraplatin 80 mg/m(2) orally on days 1 to 5, prednisone 5 mg twice daily, and bevacizumab 10 mg/kg on clay 1, and 15 mg/kg on clay 15 were administered in 35-day cycles. Results: Thirty one patients were enrolled. Grade 3 or 4 toxicities were pulmonary embolism in 2 patients and thrombocytopenia in 1 patient. 31% of the patients had a >= 30% decline in prostate-specific antigen. Median time to progression was 7.0 months (90% confidence interval [CI] 4.7-8.5 mo) and median overall survival was 11.2 months (90% CI 9.1-16.4 mo). Polymorphism in the excision repair cross-complementation-1 (ERCC-1) gene was associated with time to progression (hazard ratio = 1.91). A circulating tumor cell count >= 5was moderately prognostic of overall survival (hazard ratio = 1.49) as compared with CTC <5. Conclusions: The combination was tolerable, and revealed promising efficacy in metastatic castrate-resistant prostate cancer. ERCC1 genotype maybe predictive of clinical benefit with platinum-based therapy in metastatic prostate cancer. (C) 2014 Elsevier Inc. All tights reserved.
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