1.Clinical and biochemical outcomes of men undergoing radical prostatectomy or radiation therapy for localized prostate cancer.
David SCHREIBER ; Justin RINEER ; Jeffrey P WEISS ; Joseph SAFDIEH ; Joseph WEINER ; Marvin ROTMAN ; David SCHWARTZ
Radiation Oncology Journal 2015;33(1):21-28
PURPOSE: We analyzed outcomes of patients with prostate cancer undergoing either radical retropubic prostatectomy (RRP) +/- salvage radiation or definitive radiation therapy (RT) +/- androgen deprivation. MATERIALS AND METHODS: From 2003-2010 there were 251 patients who underwent RRP and 469 patients who received RT (> or =7,560 cGy) for prostate cancer. Kaplan-Meier analysis was performed with the log-rank test to compare biochemical control (bCR), distant metastatic-free survival (DMPFS), and prostate cancer-specific survival (PCSS) between the two groups. RESULTS: The median follow-up was 70 months and 61.3% of the men were African American. For low risk disease the 6-year bCR were 90.3% for RT and 85.6% for RRP (p = 0.23) and the 6-year post-salvage bCR were 90.3% vs. 90.9%, respectively (p = 0.84). For intermediate risk disease the 6-year bCR were 82.6% for RT and 59.7% for RRP (p < 0.001) and 82.6% vs. 74.0%, respectively, after including those salvaged with RT (p = 0.06). For high risk disease, the 6-year bCR were 67.4% for RT and 41.3% for RRP (p < 0.001) and after including those salvaged with RT was 67.4% vs. 43.1%, respectively (p < 0.001). However, there were no significant differences between the two groups in regards to DMPFS or PCSS. CONCLUSION: Treatment approaches utilizing RRP +/- salvage radiation or RT +/- androgen deprivation yielded equivalent DMPFS and PCSS outcomes. Biochemical control rates, using their respective definitions, appeared equivalent or better in those who received treatment with RT.
Follow-Up Studies
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Humans
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Kaplan-Meier Estimate
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Male
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Prostate
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Prostatectomy*
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Prostatic Neoplasms*
2.Long-term tolerance and outcomes for dose escalation in early salvage post-prostatectomy radiation therapy.
Joseph J SAFDIEH ; David SCHWARTZ ; Joseph WEINER ; Jeffrey P WEISS ; Justin RINEER ; Isaac MADEB ; Marvin ROTMAN ; David SCHREIBER
Radiation Oncology Journal 2014;32(3):179-186
PURPOSE: To study the long-term outcomes and tolerance in our patients who received dose escalated radiotherapy in the early salvage post-prostatectomy setting. MATERIALS AND METHODS: The medical records of 54 consecutive patients who underwent radical prostatectomy subsequently followed by salvage radiation therapy (SRT) to the prostate bed between 2003-2010 were analyzed. Patients included were required to have a pre-radiation prostate specific antigen level (PSA) of 2 ng/mL or less. The median SRT dose was 70.2 Gy. Biochemical failure after salvage radiation was defined as a PSA level >0.2 ng/mL. Biochemical control and survival endpoints were analyzed using the Kaplan-Meier method. Univariate and multivariate Cox regression analysis were used to identify the potential impact of confounding factors on outcomes. RESULTS: The median pre-SRT PSA was 0.45 ng/mL and the median follow-up time was 71 months. The 4- and 7-year actuarial biochemical control rates were 75.7% and 63.2%, respectively. The actuarial 4- and 7-year distant metastasis-free survival was 93.7% and 87.0%, respectively, and the actuarial 7-year prostate cancer specific survival was 94.9%. Grade 3 late genitourinary toxicity developed in 14 patients (25.9%), while grade 4 late genitourinary toxicity developed in 2 patients (3.7%). Grade 3 late gastrointestinal toxicity developed in 1 patient (1.9%), and grade 4 late gastrointestinal toxicity developed in 1 patient (1.9%). CONCLUSION: In this series with long-term follow-up, early SRT provided outcomes and toxicity profiles similar to those reported from the three major randomized trials studying adjuvant radiation therapy.
Follow-Up Studies
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Humans
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Medical Records
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Prostate
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Prostate-Specific Antigen
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Prostatectomy
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Prostatic Neoplasms
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Radiotherapy