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Background: The efficacy of docetaxel and carboplatin with oral estramustine was evaluated in patients with castration-resistant prostate cancer. Patients and Methods: Patients were treated with intravenous docetaxel at 30 mg/m2 on days 1, 8, 15, and 22 of a 28-day cycle. Intravenous carboplatin (area under the curve, 6 mg/ml/min) was administered on day 1. Patients received oral estramustine at 626.8 mg/day throughout the treatment protocol. Patients were evaluated for response, with treatment continued until cancer progression or onset of severe adverse events. Results: Twenty patients with castration-resistant prostate cancer were treated for a median of 3.5 cycles. Prostate-specific antigen decreased by more than 30% in 18 patients, including 14 patients with a decrease of more than 50%. Median overall survival was 11 months, prostate-specific antigen progression-free survival was 6.5 months, and radiographic progression-free survival was 7 months. Conclusion: Docetaxel and carboplatin with oral estramustine shows efficacy against castration-resistant prostate cancer.

We evaluated the efficacy and toxicity of intermittent docetaxel (DCT) with estramustine (EM) for hormone-refractory prostate cancer (HRPC).Fifteen patients were enrolled. They received injected DCT (70 mg/m2 body surface) on day 1 in association with oral EM 560 mg/day (days 1-5). Treatments were repeated every 3 weeks. Serum prostate-specific antigen (PSA) levels were categorized based on the first three courses. Patients exhibiting either a response or stable disease (SD) could have a holiday from treatment (intermittent schedule). The holiday continued until elevation of the PSA level from the nadir baseline level occurred three times. All patients were evaluated for toxicity and quality of life (QOL). Survival curves were established using Kaplan-Meier graphs.The median number of courses of DCT/EM therapy was five (range, 3-12 courses). The response rate of the first cycle was 53%: 3 patients with complete response (CR), 5 patients with partial response (PR), 4 patients with SD, and 3 patients with disease progression. Eight patients were able to begin the second re-entry cycle. No patients showed a CR, 2 patients exhibited PR, 4 patients had SD, and the overall response rate was 25%. The survival rates were 93% at 1 year, and 26.1% at 2 years Grade 3-4 anemia was observed in 2 patients (13.3%), neutropenia in 11 (73.3%), and thrombocytopenia in 2 (13.3%). The QOL scale showed good QOL after 6 months, with improvement in the score for nausea and vomiting.Intermittent DCT/EM therapy was well tolerated, and has the potential to prolong survival, with a high QOL, in patients with HRPC.

5005 Background: Docetaxel-estramustine improves survival in patients (pts) with castrate-resistant prostate cancer (CaP). This phase III trial assessed docetaxel-estramustine in pts with high-risk...

4513 Background: Docetaxel improves survival in patients (pts) with castrate-resistant prostate cancer (CaP). This phase III trial assessed docetaxel-based chemotherapy in pts with high-risk locali...

4789 Background: Recently, docetaxel have shown promising clinical results in patients with hormone-refractory prostate cancer (HRPC). However, their optimal treatment schedule has not been establi...