The impact of multifocal perineural invasion on biochemical recurrence and timing of adjuvant androgen-deprivation therapy in high-risk prostate cancer following radical prostatectomy.

2017 ◽  
Vol 35 (6_suppl) ◽  
pp. e595-e595
Author(s):  
Pengfei Shen ◽  
Guangxi Sun ◽  
Hao Zeng ◽  
Xingming Zhang
Keyword(s):  
Prostate Cancer ◽  
High Risk ◽  
Radical Prostatectomy ◽  
Androgen Deprivation Therapy ◽  
Biochemical Recurrence ◽  
Perineural Invasion ◽  
Androgen Deprivation ◽  
High Risk Prostate Cancer ◽  
Risk Prostate Cancer ◽  
The Impact

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.

885 AVOIDING ANDROGEN DEPRIVATION THERAPY IN MEN WITH HIGH RISK PROSTATE CANCER: THE ROLE OF RADICAL PROSTATECTOMY AS INITIAL TREATMENT

2011 ◽  
Vol 185 (4S) ◽  
Author(s):  
Ranko Miocinovic ◽  
Ryan K. Berglund ◽  
Andrew J. Stephenson ◽  
J. Stephen Jones ◽  
Amr F. Fergany ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
High Risk ◽  
Radical Prostatectomy ◽  
Androgen Deprivation Therapy ◽  
Initial Treatment ◽  
Androgen Deprivation ◽  
High Risk Prostate Cancer ◽  
Risk Prostate Cancer

Treatment timing in localized high-risk prostate cancer treated with radiation and androgen deprivation therapy.

2020 ◽  
Vol 38 (6_suppl) ◽  
pp. 359-359
Author(s):  
Shaakir Hasan ◽  
Stanislav Lazarev ◽  
Daniel Gorovets ◽  
Madhur Garg ◽  
Robert H. Press ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
High Risk ◽  
Androgen Deprivation Therapy ◽  
Treatment Time ◽  
Androgen Deprivation ◽  
High Risk Prostate Cancer ◽  
High Risk Disease ◽  
Risk Prostate Cancer ◽  
Multivariable Regression ◽  
The Impact

359 Background: Data regarding the impact of overall treatment time in prostate radiotherapy predate the dose escalation era and is absent in high risk disease. We hypothesize that delays in initiating androgen deprivation therapy (ADT) and in completing fractionated radiotherapy (XRT) correlate with worse outcomes in high risk prostate cancer. Methods: Using the National Cancer Database, we identified 9,611 cases of localized high risk prostate cancer, defined as Grade groups 4 and 5 (Gleason 8-10), PSA < 40, and T1-T3N0M0, treated with conventionally fractionated XRT (74-81 Gy, median 78 Gy) and ADT between 2010-2014 with at least 12 months follow-up (median 40). Receiver operating characteristic (ROC) analyses determined a-priori values for days to initiation of treatment (ADT or XRT) and number of “missed” treatment days (number of days beyond the minimum required to complete XRT). Multivariable regression models with propensity matching conveyed the relative impact of these timing parameters on survival. Results: The median time from diagnosis to treatment intervention was 63 days and median missed XRT treatment days was 2.2. The greatest difference in survival was seen when intervention was initiated beyond 74 days from diagnosis (HR=1.21, P=0.045) and when more than 3 XRT treatment days were missed (HR=1.27, P=0.006). Only missed treatment days correlated with survival as a continuous variable (HR=1.028, P<0.001) on multivariable analysis. On a multivariable regression model propensity-matched for missed treatment days, independent predictors for worse survival include older age, higher comorbidity score, dose below 78 Gy, grade group 5, and PSA > 20. Greater than 3 missed treatment days remained an independent predictor; adjusted HR = 1.23 (P=0.002). The lone predictors of missed treatments was African American race (OR=1.21). Conclusions: Although outcomes in prostate cancer are not typically thought to be associated with treatment time, our study, the largest such analysis to date, revealed a strong independent correlation between timely completion of XRT and survival in high risk disease. The association between survival and time to initiating ADT was not nearly as strong.

High-risk prostate cancer: factors predicting biochemical recurrence after radical prostatectomy

2015 ◽  
Vol 22 (3) ◽  
pp. 161-168
Author(s):  
Albertas Ulys ◽  
Agnė Ulytė ◽  
Pavel Dziameshka ◽  
Oleg Sukonko ◽  
Sergei Krasny ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
High Risk ◽  
Radical Prostatectomy ◽  
Cancer Patients ◽  
Biochemical Recurrence ◽  
Perineural Invasion ◽  
Surgical Margins ◽  
T Stage ◽  
High Risk Prostate Cancer ◽  
Risk Prostate Cancer

Background/objective. Predictive criteria are needed to evaluate the risk of disease progression after radical prostatectomy. Such criteria would help to select patients most likely to benefit from adjuvant or multimodality treatment. Our aim was to identify predictive factors for biochemical recurrence among the  pre- and post-operative parameters in high-risk prostate cancer patients after radical prostatectomy. Methods. Data on high-risk prostate cancer patients between 2005 and 2009 were retrospectively reviewed in two cancer centers: National Cancer Institute, Vilnius, Lithuania, and N.  N.  Alexandrov National Cancer Centre of Belarus, Minsk, Belarus. 199 patients were selected for the  study. The  pre-operative independent variables were T stage, pretreatment PSA level and Gleason score. Surgical margins and perineural invasion were additionally known for 122 patients. The outcomes measured were biochemical recurrence free and overall survival. The mean follow-up time was 5.8 years. Results. Lower T stage (p = 0.001) and pretreatment PSA (p = 0.0001) were associated with better survival. In the multivariate analysis of pre-operative factors, high T stage (p = 0.008) and pretreatment PSA (p = 0.009) were predictive of biochemical recurrence. When postoperative parameters were included in the multivariate analysis, only pretreatment PSA (p = 0.01), positive surgical margins (p = 0.003) and perineural invasion (p = 0.03) remained relevant independent predictors of biochemical recurrence. Conclusions. Pretreatment PSA, positive surgical margins and perineural invasion were independent predictors of biochemical recurrence after radical prostatectomy in high-risk prostate cancer patients, while the  T stage became insignificant after adjusting for postoperative parameters.

Androgen deprivation therapy does not impact cause-specific or overall survival in high-risk prostate cancer treated with brachytherapy and supplemental external beam

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 15578-15578
Author(s):  
Z. Allen ◽  
G. S. Merrick ◽  
W. Butler ◽  
K. Wallner ◽  
R. Galbreath ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Overall Survival ◽  
High Risk ◽  
Pulmonary Disease ◽  
Androgen Deprivation Therapy ◽  
Gleason Score ◽  
Androgen Deprivation ◽  
High Risk Prostate Cancer ◽  
Risk Prostate Cancer ◽  
The Impact

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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