The risk of death from prostate cancer in men with Gleason Score 3+4 prostate cancer treated using brachytherapy with or without a short course of androgen deprivation therapy.

2020 ◽  
Vol 38 (6_suppl) ◽  
pp. 330-330
Author(s):  
David Dewei Yang ◽  
Ming-Hui Chen ◽  
Michelle H. Braccioforte ◽  
Brian Joseph Moran ◽  
Anthony Victor D'Amico

330 Background: We evaluated whether the intermediate-risk factors of percentage of positive biopsies (PPB), clinical tumor category, and prostate-specific antigen (PSA) level, in addition to age, were associated with the risk of prostate cancer-specific mortality (PCSM) among men with Gleason 3+4 prostate cancer treated with brachytherapy (BT) alone or BT and a short course of androgen deprivation therapy (ADT). Methods: We conducted a prospective cohort study of 1920 consecutively treated men with Gleason 3+4 adenocarcinoma of the prostate who received BT or BT and a median of 4 months of ADT between 10/14/1997 and 5/28/2013. Separate multivariable Fine and Gray competing risks regression models among men treated with BT or BT and ADT were used to assess whether PPB, cT2b-T2c, and PSA of 10.1-20.0 ng/ml, in addition to age greater than the median of 70 years, were associated with the risk of PCSM after adjustment for comorbidity. Results: After a median follow-up of 7.8 years (interquartile range 5.2-10.4 years), 284 men (14.8%) had died, including 31 (10.9% of deaths) from PC of which 18 (58.1%) and 13 (41.9%) occurred in men treated with BT or BT and ADT, respectively. For men treated with BT alone, increasing PPB, PSA of 10.1-20.0 vs 4.0-10.0 ng/mL, and age >70 vs ≤70 years were significantly associated with an increased risk of PCSM (adjusted hazard ratio [AHR] 1.015 95% confidence interval [CI] 1.000-1.031, P=0.048; AHR 5.55, 95% CI 2.01-15.29, P<0.001; and AHR 3.66, 95% CI 1.16-11.56, P=0.03, respectively). The respective results for men treated with BT and ADT were AHR 1.009, 95% CI 0.987-1.031, P=0.44; AHR 4.17, 95% CI 1.29-13.50, P=0.02; and AHR 3.74, 95% CI 0.87-16.05, P=0.08. The clinical tumor category was not significantly associated with the risk of PCSM. Conclusions: Among men with biopsy Gleason score 3+4 PC, both age >70 years and PSA of 10.1-20.0 ng/ml were significantly associated with an increased risk of PCSM following BT, and adding 4 months of ADT may not be sufficient to mitigate this risk. Advanced imaging and targeted biopsy of suspicious areas should be considered to personalize treatment in order to minimize the risk of PCSM in these men.

2018 ◽  
Vol 36 (6_suppl) ◽  
pp. 207-207
Author(s):  
Daniel M. Lim ◽  
Roman Gulati ◽  
Serge Aleshin-Guendel ◽  
Heather H. Cheng ◽  
Agnes M. Gawne ◽  
...  

207 Background: Optimal utilization of novel therapies for advanced prostate cancer is challenging without a validated surrogate efficacy endpoint. Ongoing trials are using durable undetectable prostate specific antigen (PSA) levels as a marker of efficacy. The proportion of patients and clinical relevance of those with a prolonged undetectable PSA after a short course of androgen deprivation therapy (ADT) is uncertain. Methods: The University of Washington Caisis database was queried for radical prostatectomy patients who received 6–12 months of ADT after biochemical recurrence (BCR), defined as PSA ≥ 0.2 ng/mL and no radiographically detectable metastasis. Proportions of patients with undetectable PSA 12 and 24 months after ending ADT were compared to a hypothesized 5% rate using exact binomial tests. Associations with patient and tumor characteristics were examined using logistic regression, and associations with risk of subsequent metastasis and death from any cause were evaluated by log-rank tests. Results: After ineligibility exclusions, data were abstracted from 93 patients. Proportions of patients with undetectable PSA 12 and 24 months after ending ADT were n=23/93 (24.7%; 95% CI 16.4–34.8%; P<0.001) and n=14/93 (15.1%; 95% CI 8.5–24.0%; P<0.001), respectively. Proportions of patients with undetectable PSA 12 and 24 months after testosterone recovery ≥ 50 ng/dL were n=16/65 (24.6%; 95% CI 14.8-36.9%) and n=10/65 (15.4%; 95% CI 7.6-26.5%), respectively. Being 1 year older at diagnosis was associated with an 11.5% (95% CI 3.1–21.9%; P=0.01) increase in the odds of having a detectable PSA after controlling for PSA at diagnosis, Gleason sum and time from initial therapy to BCR. Detectable PSA was associated with increased risk of metastasis (P=0.006) with marginal evidence of association with death from any cause (P=0.07). Conclusions: This single-institution retrospective analysis shows that it is not uncommon to have undetectable PSA 12 or 24 months after a short course of ADT. Additional analysis is needed to demonstrate the clinical value of this measure as a surrogate for prostate cancer outcomes and for consideration as a trial endpoint.


Urology ◽  
2019 ◽  
Vol 126 ◽  
pp. 145-151 ◽  
Author(s):  
Luke R.G. Pike ◽  
Jing Wu ◽  
Ming-Hui Chen ◽  
Marian Loffredo ◽  
Andrew A. Renshaw ◽  
...  

BMJ Open ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. e025161
Author(s):  
Mark Rezk ◽  
Ashish Chandra ◽  
Daniel Addis ◽  
Henrik Møller ◽  
Mina Youssef ◽  
...  

ObjectivesTo determine whetherETS-related gene(ERG) expression can be used as a biomarker to predict biochemical recurrence and prostate cancer-specific death in patients with high Gleason grade prostate cancer treated with androgen deprivation therapy (ADT) as monotherapy.MethodsA multicentre retrospective cohort study identifying 149 patients treated with primary ADT for metastatic or non-metastatic prostate cancer with Gleason score 8–10 between 1999 and 2006. Patients planned for adjuvant radiotherapy at diagnosis were excluded. Age at diagnosis, ethnicity, prostate-specific antigen and Charlson-comorbidity score were recorded. Prostatic tissue acquired at biopsy or transurethral resection surgery was assessed for immunohistochemical expression ofERG. Failure of ADT defined as prostate specific antigen nadir +2. Vital status and death certification data determined using the UK National Cancer Registry. Primary outcome measures were overall survival (OS) and prostate cancer specific survival (CSS). Secondary outcome was biochemical recurrence-free survival (BRFS).ResultsThe median OS of our cohort was 60.2 months (CI 52.0 to 68.3).ERGexpression observed in 51/149 cases (34%). Multivariate Cox proportional hazards analysis showed no significant association betweenERGexpression and OS (p=0.41), CSS (p=0.92) and BRFS (p=0.31). Cox regression analysis showed Gleason score (p=0.003) and metastatic status (p<1×10-5) to be the only significant predictors of prostate CSS.ConclusionsNo significant association was found betweenERGstatus and any of our outcome measures. Despite a limited sample size, our results suggest thatERGdoes not appear to be a useful biomarker in predicting response to ADT in patients with high risk prostate cancer.


2021 ◽  
Vol 1 (3) ◽  
pp. 179-183
Author(s):  
HIROSHI MASUDA ◽  
MASAHIRO SUGIURA ◽  
KYOKUSIN HOU ◽  
KAZUHIRO ARAKI ◽  
SATOKO KOJIMA ◽  
...  

Background/Aim: Recently, it was reported that the use of androgen deprivation therapy (ADT) is significantly associated with an increased risk of acute kidney injury (AKI) in patients with newly diagnosed non-metastatic prostate cancer. This study aimed to investigate the incidence of early renal dysfunction in Japanese prostate cancer patients receiving ADT and the factors associated with it. Patients and Methods: A total of 135 patients who had been pathologically diagnosed with prostate cancer and had received ADT for at least 6 months were eligible for study inclusion. The estimated glomerular filtration rate (eGFR) before treatment, and at 1, 3, and 6 months of ADT were evaluated retrospectively. We assessed renal function using eGFR and investigated the rate of change in the eGFR (ΔeGFR) during ADT. Univariate and multivariate logistic analyses were carried out to identify clinical factors that were significantly associated with renal dysfunction after 6 months ADT. Results: A total of 110 cases were evaluated in this study. The incidence of renal dysfunction after 6 months ADT was 63% (69/110). The mean ΔeGFR after 1, 3, and 6 months of ADT were –0.6%, –3.1% and –1.7%, respectively (p<0.001). Multivariate analysis showed that renal dysfunction after 3 months of ADT and hypertension were independent risk factors for renal dysfunction after 6 months ADT. Conclusion: Renal dysfunction occurs from 1 month of ADT and hypertensive prostate cancer patients receiving ADT are at high risk of developing renal dysfunction, and that such patients should be treated very carefully. Therefore, patients that are started on ADT should undergo periodic prostate-specific antigen, renal function, and urinary salt intake examinations.


2012 ◽  
Vol 6 (6) ◽  
pp. 249 ◽  
Author(s):  
Kameel Mungrue ◽  
Suresh Moonan ◽  
Maryam Mohammed ◽  
Saara Hyatali

Background: Prostate cancer is the most common malignancy among men in the western hemisphere, including Trinidad and Tobago. The aim of this study is to describe the epidemiological features of prostate cancer among patients admitted to a tertiary level teaching hospital during 2002 to 2005. We assessed the long term survival of patients with prostate cancer and the epidemiology of the disease.Methods: We reviewed the admissions data for the period 2002-2005. Demographic, clinical and outcomes (survival or death) data were collected and analysed, using SPSS version 16. Statistical analysis included Kaplan-Mier survival analysis, Cox regression models and the log-rank test. A p value of <0.05 was considered statistically significant.Results: Of the 1250 cases reviewed, 242 participants were selected. Patients of African ancestry, older than 60 years and a Gleason score greater than 7 had an increased risk of mortality. Patients with prostate-specific antigen (PSA) ≥100 ng/L had a 3-fold increasedrisk of mortality. Survival rates declined between 2002 and 2005.Conclusion: This is the first study of its kind to demonstrate survival rates among patients with prostate cancer in Trinidad. The following epidemiological features were identified: average age of occurrence of 71 years, ethnic disparity with higher occurrence in African men than all other ethnic groups and a PSA of >100 ng/dL. These features were associated with a 3-fold higher risk of death. A Gleason score of 8 to 10 was also associated with lower survival rates.


2011 ◽  
Vol 29 (7_suppl) ◽  
pp. 198-198
Author(s):  
N. D. Arvold ◽  
M. Chen ◽  
J. W. Moul ◽  
B. J. Moran ◽  
D. E. Dosoretz ◽  
...  

198 Background: Radical prostatectomy (RP) and brachytherapy (BT) are widely utilized treatments for favorable-risk prostate cancer (PC). We estimated the risk of PC-specific mortality (PCSM) following RP or BT in men with low- or intermediate-risk PC using prospectively collected data. Methods: The study cohort comprised 5,760 men with low-risk PC (prostate-specific antigen [PSA] level ≤ 10 ng/mL, clinical category T1c or 2a, and Gleason score ≤ 6), and 3,079 men with intermediate-risk PC (PSA level 10-20 ng/mL, clinical T2b or T2c, or Gleason score 7). Competing risks multivariable regression was performed to assess risk of PCSM after RP or BT, adjusting for age, treatment year, cardiovascular comorbidity, and known PC prognostic factors. Results: There was no significant difference in the risk of PCSM among men with low-risk PC (11 vs. 6 deaths: adjusted hazard ratio [AHR], 1.62; 95% CI, 0.59–4.45; P = 0.35) who received BT compared to RP. However among men with intermediate-risk PC, despite significantly shorter median follow-up for men undergoing BT as compared to RP (4.1 vs. 7.2 years, P < 0.001), there was a trend toward an increased risk of PCSM (18 vs. 9 deaths: AHR, 2.30; 95% CI, 0.95–5.58; P = 0.07) for men treated with BT. Conclusions: The risk of PCSM among men with low-risk PC was not significantly different following RP or BT, however there may be a reduced risk of PCSM after RP as compared to BT in men with intermediate-risk PC. [Table: see text] No significant financial relationships to disclose.


2018 ◽  
Vol 36 (6_suppl) ◽  
pp. 189-189
Author(s):  
Brandon Arvin Virgil Mahal ◽  
Ming-Hui Chen ◽  
Andrew A. Renshaw ◽  
Philip W. Kantoff ◽  
Anthony Victor D'Amico

189 Background: We sought to ascertain whether there is an association between prostate cancer (PC)-specific mortality (PCSM) and salvage androgen deprivation therapy (ADT) timing amongst men with short versus long prostate-specific antigen doubling times (PSA-DT)s. Methods: The study cohort was selected from 206 men with localized unfavorable-risk PC who were randomized to radiation therapy (RT) or RT plus 6 months of ADT between 1995 and 2001. Fifty-four men who received salvage ADT for PSA failure after a median follow up of 18.72 years following randomization defined the study cohort. Fine-Gray competing risks regression analyzed whether the timing of salvage ADT was associated with an increased risk of PCSM after adjusting for age, comorbidity, known PC prognostic factors, and previously identified interactions. Results: After a median follow-up of 5.68 years (IQR 3.05 - 9.56) following salvage ADT 49 of the 54 men (91%) died, 27 from PC (54% of deaths). Increasing PSA-DT as a continuous covariate was associated with a decreasing risk of PCSM (adjusted hazard ratio [AHR] 0.33, 95% CI 0.13, 0.82; P=0.02). Amongst men with a long PSA-DT (≥6 months), initiating salvage ADT later (PSA>12ng/mL, upper quartile) versus earlier was associated with an increased risk of PCSM (AHR 8.84, 95% CI 1.99-39.27; P=0.004); whereas for men with a short (<6 months) PSA-DT (AHR 1.16, 95% CI 0.38-3.54; P=0.79) this was not true. Conclusions: Early initiation of salvage ADT for post-RT PSA recurrence in men with a PSA-DT of 6 months or more may reduce the risk of PCSM, arguing against the unproven assumption that patients with a short PSA-DT are those most likely to benefit from early initiation of salvage ADT. Clinical trial information: NCT00116220.


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