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Radiation for prostate cancer: use of biochemical failure as an endpoint following radiotherapy

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Abstract

The introduction of prostate-specific antigen (PSA) as a reliable tumor marker for prostate cancer brought significant changes in endpoints after therapy and in outcome reporting. Over the last 15 years we have collected follow-up information in this new era and struggled with failure definitions using this new tool. Parameters for failure after radiation were especially controversial due to the fact that, unlike surgery, a variable amount of normal prostate function and PSA production remained. In 1996, the ASTRO Consensus Conference established a PSA failure definition based on the available information at the time. It was commonly used for outcome reporting subsequently although criticisms have been voiced and alternate definitions proposed. A recently assembled multi-institutional database was used both for long-term outcome reporting with external beam radiation and to test various other failure definitions. A summary of these results and the associated issues are presented here.

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Acknowledgements

The authors wish to acknowledge the collaboration of the nine authors and eight institutions in addition to our own which made the 4839 patient combined analysis possible. In alphabetical order by authors name, they are: Eric M. Horwitz, Fox Chase Cancer Center, Philadelphia, PA, Patrick A. Kupelian, Cleveland Clinic, Cleveland, OH, Alvaro A. Martinez, William Beaumont Hospital, Detroit, MI, Jeff M. Michalski, Mallinkrodt Institute of Radiology Washington University, St. Louis, MO, Thomas M. Pisansky, Mayo Clinic-Rochester, MN, Howard M. Sandler, University of Michigan, Ann Arbor, MI, William U. Shipley, Massachusetts General Hospital, Boston, MA, Michael J. Zelefsky, Memorial Sloan Kettering Cancer, New York, NY, and Anthony L. Zietman, Massachusetts General Hospital, Boston, MA.

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Correspondence to Deborah A. Kuban.

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Kuban, D.A., Thames, H.D. & Levy, L.B. Radiation for prostate cancer: use of biochemical failure as an endpoint following radiotherapy. World J Urol 21, 253–264 (2003). https://doi.org/10.1007/s00345-003-0361-0

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  • DOI: https://doi.org/10.1007/s00345-003-0361-0

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