Interaction of adjuvant androgen deprivation therapy with patient comorbidity status on overall survival after radical prostatectomy for high-risk prostate cancer

2012 ◽  
Vol 20 (8) ◽  
pp. 798-805 ◽  
Author(s):  
Brian J Linder ◽  
Stephen A Boorjian ◽  
Eric C Umbreit ◽  
Rachel E Carlson ◽  
Laureano J Rangel ◽  
...  
2017 ◽  
Vol 35 (6_suppl) ◽  
pp. e595-e595
Author(s):  
Pengfei Shen ◽  
Guangxi Sun ◽  
Hao Zeng ◽  
Xingming Zhang

e595 Background: Perineural invasion (PNI) is a distinct pathologic entity and a recognized source of tumor spread. However, the role of PNI in high-risk prostate cancer (PCa) has not been explored. We investigated the impact of the severity of PNI on biochemical recurrence (BCR) and optimal timing of adjuvant androgen deprivation therapy (ADT) post radical prostatectomy (RP). Methods: Of 265 prostatectomies, median follow-up 45 months, were assessed for the presence of PNI and its intensity (unifocal PNI and multifocal PNI) in RP specimen. Kaplan-Merier curves were used to estimate BCR probabilities. Cox proportional hazard models were used to address predictors of BCR. Harrell’s C-index was conducted to further validate prognostic value of multi-PNI. Results: A total of 123 patients (46.4%) were PNI positive, among which, 91 (74%) and 32 (26%) had unifocal PNI (uni-PNI) and multifocal PNI (multi-PNI), respectively. Other than uni-PNI, the presence of multi-PNI was strongly associated with increasing incidence of BCR (HR = 3.87, 95% CI: 1.66-9.01, p = 0.002). Patients with uni-PNI seemed to have a similar BCR rate to those without PNI after adjuvant ADT. For men with multi-PNI, immediate ADT obviously appeared to be superior to delayed ADT in decreasing biochemical failure. Conclusions: Multi-PNI detected in high-risk RP specimens could be a prognosticator for early biochemical relapse post-surgery. Our findings suggest that patients with multi-PNI appear appropriate to choose adjuvant therapy as soon as possible after surgery.


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 15578-15578
Author(s):  
Z. Allen ◽  
G. S. Merrick ◽  
W. Butler ◽  
K. Wallner ◽  
R. Galbreath ◽  
...  

15578 Background: To determine cause-specific (CSS), biochemical progression-free (bPFS) and overall survival (OS) in high risk prostate cancer patients undergoing brachytherapy with or without supplemental therapies. Methods: From April 1995 through July 2002, 204 patients with high risk prostate cancer (Gleason score = 8 and/or PSA > 20 ng/mL and/or clinical stage = T2c) underwent brachytherapy with or without supplemental therapies. Of the 204 patients, 193 (94.6%) received supplemental XRT and 119 (58.3%) received ADT (ADT = 6 months n=40 and ADT > 6 months n = 79). Median follow-up was 7.0 years. All patients were implanted at least 4 years prior to analysis. BPFS was defined by a PSA = 0.40 ng/mL after nadir. Multiple clinical, treatment and dosimetric parameters were evaluated for the impact on survival. Results: The ten-year CSS, bPFS and OS were 88.9%, 86.6% and 68.6%, respectively. A statistically significant difference in bPFS was discerned between hormone naïve, ADT = 6 months and ADT > 6 month cohorts (79.7% vs. 95.0% vs. 89.9%, p= 0.032). ADT did not impact CSS (94.0% vs. 87.1%, p=0.983 ) or OS (65.2% vs. 70.3%, p = 0.713). For bPFS patients, the median post-treatment PSA was < 0.04 ng/mL. A Cox linear regression analysis demonstrated that Gleason score was the best predictor of CSS while percent positive biopsies and duration of ADT best predicted for bPFS. OS was best predicted by Gleason score and diabetes. Thirty-eight patients have died with 26 of the deaths due to cardiovascular/pulmonary disease or second malignancy. Eleven patients have died of metastatic prostate cancer. Conclusions: Androgen deprivation therapy improved 10-year bPFS without statistical impact on CSS or OS. Death as a result of cardiovascular/pulmonary disease and second malignancies were more than twice as common as prostate cancer deaths. Strategies to improve cardiovascular health should positively impact overall survival. No significant financial relationships to disclose.


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