Adjuvant androgen deprivation therapy augments cure and long-term cancer control in men with poor prognosis, nonmetastatic prostate cancer.
SourceProstate Cancer and Prostatic Diseases, 11, 1, (2008), pp. 46-52
Article / Letter to editor
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Prostate Cancer and Prostatic Diseases
SubjectONCOL 3: Translational research; UMCN 1.5: Interventional oncology
Historically, adjuvant androgen deprivation therapy has been viewed as a palliative treatment option for patients with poor-prognosis non-metastatic prostate cancer. In addition, guidelines from bodies such as the European Association of Urology and American Society for Clinical Oncology do not specifically categorize adjuvant hormonal therapy as being curative in intent. We propose that adjuvant androgen deprivation therapy should now be classified as a treatment of curative intent in patients with poor-prognosis, non-metastatic prostate cancer. By applying a carefully considered definition of cure (based on long-term (10- to 15-year) disease-free survival curves) to the findings from randomized controlled clinical trials that have studied adjuvant hormonal treatments in non-metastatic prostate cancer, we challenged whether this viewpoint should now be considered redundant. According to our review of relevant studies and our definition of cure, goserelin appears to augment cure in a sizeable proportion of men with poor-prognosis non-metastatic prostate cancer when given adjuvant to radical prostatectomy or radiotherapy. Across several trials, the relevant survival curves for the goserelin-treated population became indefinitely flat after long-term follow-up. This indicates that these patients have a mortality risk comparable to the general population without prostate cancer. On the basis of the evidence presented within this review, we believe that, given it can control disease for a long period of time, adjuvant goserelin should be reclassified as a treatment of curative intent for patients with poor-prognosis non-metastatic prostate cancer.
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