1. Long-term outcomes in 1121 Australian prostate cancer patients treated with definitive radiotherapy.
- Author
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Leon, Jeremiah F, Kneebone, Andrew, Gebski, Val, Turner, Sandra, Cross, Shamira, Hayden, Amy, Do, Viet, Ngo, Diana, Sidhom, Mark, and de Leon, Jeremiah F
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RADIOTHERAPY , *PROSTATE cancer treatment , *SURVIVAL , *KAPLAN-Meier estimator , *ANTIANDROGENS , *COMBINED modality therapy , *LONGITUDINAL method , *PROSTATE tumors , *RADIATION doses , *SURVIVAL analysis (Biometry) , *TUMOR classification , *TREATMENT effectiveness - Abstract
Introduction: Optimal definitive treatment of prostate cancer is controversial, especially in high-risk patients. We report the largest prospective cohort of Australian patients treated with radiotherapy for localised prostate cancer.Methods: One thousand, one hundred and twenty-one patients with prostate cancer were prospectively registered and treated to a dose of 70-74 Gy. Patients were classified as low, intermediate or high risk based on PSA, clinical staging and Gleason score. Intermediate-risk patients were treated with 0-6 months of hormonal therapy (ADT) and high-risk patients were offered neoadjuvant and adjuvant ADT. Overall survival (OS) and biochemical relapse-free survival (bNED) were calculated using the Kaplan-Meier method.Results: Median follow-up was 92 months. Eight-year OS and bNED were 78.4% and 68.1% respectively in the entire cohort. OS for the low, intermediate and high-risk groups was 84.5%, 78.4% and 68% respectively. For these risk groups, bNED was 80.3%, 65.7% and 53.7% respectively. In the intermediate and high-risk group, OS and bNED decreased with increasing number of risk factors.Conclusion: Definitive radiotherapy is an effective treatment for prostate cancer, including in high-risk cases. [ABSTRACT FROM AUTHOR]- Published
- 2019
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