Long-term outcome among men with conservatively treated localised prostate cancer

Abstract

Optimal management of clinically localised prostate cancer presents unique challenges, because of its highly variable and often indolent natural history. There is an urgent need to predict more accurately its natural history, in order to avoid unnecessary treatment. Medical records of men diagnosed with clinically localised prostate cancer, in the UK, between 1990 and 1996 were reviewed to identify those who were conservatively treated, under age 76 years at the time of pathological diagnosis and had a baseline prostate-specific antigen (PSA) measurement. Diagnostic biopsy specimens were centrally reviewed to assign primary and secondary Gleason grades. The primary end point was death from prostate cancer and multivariate models were constructed to determine its best predictors. A total of 2333 eligible patients were identified. The most important prognostic factors were Gleason score and baseline PSA level. These factors were largely independent and together, contributed substantially more predictive power than either one alone. Clinical stage and extent of disease determined, either from needle biopsy or transurethral resection of the prostate (TURP) chips, provided some additional prognostic information. In conclusion, a model using Gleason score and PSA level identified three subgroups comprising 17, 50, and 33% of the cohort with a 10-year prostate cancer specific mortality of <10, 10-30, and >30%, respectively. This classification is a substantial improvement on previous ones using only Gleason score, but better markers are needed to predict survival more accurately in the intermediate group of patients.

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@article{Cuzick2006LongtermOA, title={Long-term outcome among men with conservatively treated localised prostate cancer}, author={Jack Cuzick and Gabrielle Fisher and Michael W. Kattan and Daniel M. Berney and Turschner Oliver and Charles Stephen Foster and Henrik B. M\oller and Victor Reuter and Paul A. Fearn and James Eastham and Peter T. Scardino}, journal={British Journal of Cancer}, year={2006}, volume={95}, pages={1186 - 1194} }