Commentary on “Duration of short-course androgen suppression therapy and the risk of death as a result of prostate cancer.” A.V. D'Amico, M.H. Chen, J. Crook, J.G. Armstrong, S. Malone, A. Steigler, M. Dunne, P.W. Kantoff, J.W. Denham, Brigham and Women's Hospital, Boston, MA. 02115, USA.

Author(s):  
Donald L. Trump
2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 5066-5066
Author(s):  
J. H. Hayes ◽  
M. Chen ◽  
B. J. Moran ◽  
M. H. Braccioforte ◽  
D. Dosoretz ◽  
...  

5066 Background: AST is used to reduce prostate size in men with favorable-risk prostate cancer who have pubic arch interference in order to enable them to undergo prostate brachytherapy. While no disease-specific benefit has been demonstrated to AST in this setting, AST use has been associated with both cardiovascular morbidity and mortality. The Objective is to determine the effect of short-course androgen suppression therapy (AST) prior to brachytherapy on all cause mortality (ACM), stratified by the presence or absence of preexisting cardiovascular disease (CVD). Methods: The study cohort included 12,792 men with previously-untreated low or intermediate risk prostate cancer (PSA < 20 ng/mL; Gleason score 7 or below on initial biopsy; clinical category T2c or below) treated between 1992 and 2005 at one of 21 community-based medical centers in Illinois, Florida, New York, or North Carolina. Men were treated with brachytherapy with or without neoadjuvant AST. Multivariate Cox regression analysis was performed to assess whether significant associations between preexisting CVD and ACM existed adjusting for age, year of treatment and known prostate cancer prognostic factors. Results: After a median follow up of 3.76 years (interquartile range, 2.03 to 5.92 years), 1557 deaths had occurred. The use of neoadjuvant AST was significantly associated with an increased risk of ACM in men with pretreatment CVD (adjusted hazard ratio (AHR) 1.62, 95% CI, 1.40 to 1.87, p < 0.001) but not in men without CVD (AHR 1.06, 95% CI, 0.91 to 1.25, p = 0.5). In men with preexisting CVD, AST use was associated with an increased risk of ACM at 5 years compared to men with CVD who did not use AST (17.5% (95%CI, 15.57% to 19.64%) vs. 14.35% (95%CI, 12.80% to 16.06%), p < 0.0001). Conclusions: Preexisting CVD is associated with an increased risk of death in men with favorable-risk prostate cancer treated with short-course AST prior to brachytherapy. No significant financial relationships to disclose.


2011 ◽  
Vol 29 (35) ◽  
pp. 4682-4687 ◽  
Author(s):  
Anthony V. D'Amico ◽  
Ming-Hui Chen ◽  
Juanita Crook ◽  
John G. Armstrong ◽  
Shawn Malone ◽  
...  

Purpose We evaluated whether the duration of androgen suppression therapy (AST) had an impact on the risk of prostate cancer–specific mortality (PCSM) in men with unfavorable-risk prostate cancer (PC) within established Gleason score (GS) categories. Patients and Methods Between February 2, 1996, and December 27, 2001, 761 men with unfavorable-risk PC were treated in Australia, New Zealand, Ireland, or the United States in a randomized trial with radiotherapy and 3, 4, or 6 months of AST (the study cohort). Competing risks regression was used to evaluate whether the duration of AST interacted with GS and was significantly associated with the risk of PCSM, adjusting for age, trial site, and PC prognostic factors. Results After a median follow-up of 10.9 years, 263 men died, 111 (42%) from PC. For all men, 6 versus 3 or 4 months of AST was associated with a reduced risk of PCSM (adjusted hazard ratio [AHR], 0.55; 95% CI, 0.36 to 0.82; P = .004). AHRs evaluating the impact of the duration of AST on the risk of PCSM were 0.67 (95% CI, 0.29 to 1.56; P = .35), 0.47 (95% CI, 0.25 to 0.85; P = .01), and 0.59 (95% CI, 0.30 to 1.19; P = .14) for men with GS ≤ 6, 7, and 8 to 10 PC, respectively. Therefore, the strongest evidence for this benefit was in men with GS 7 PC. Conclusion AST durations of no less than 6 months should be considered when treating GS 7 PC with conventional dose RT.


2010 ◽  
Vol 106 (7) ◽  
pp. 979-985 ◽  
Author(s):  
Julia H. Hayes ◽  
Ming-Hui Chen ◽  
Brian J. Moran ◽  
Michelle H. Braccioforte ◽  
Daniel E. Dosoretz ◽  
...  

2015 ◽  
Vol 33 (7_suppl) ◽  
pp. 27-27
Author(s):  
Florence K. Keane ◽  
Ming-Hui Chen ◽  
Danjie Zhang ◽  
Brian Joseph Moran ◽  
Michelle H. Braccioforte ◽  
...  

27 Background: We assessed the risk of prostate cancer-specific mortality (PCSM) in men with unfavorable and favorable intermediate-risk prostate cancer (PC) who received dose-escalated radiotherapy (RT) with or without short-course androgen deprivation therapy (ADT). Methods: The cohort consisted of 2,668 men with intermediate-risk PC (71.3% favorable, 28.7% unfavorable) who were treated with dose-escalated RT with or without ADT (median 4 mos.) from 1997 - 2013. Fine and Gray's competing risks regression was used to assess whether ADT decreased PCSM-risk in an adjusted multivariable model (Table). An interaction term was included to assess for potential differences in the impact of ADT on PCSM risk in men with favorable versus unfavorable intermediate-risk PC. Results: After a median follow-up of 7.84 years, there were 393 deaths (14.73%), of which 33 were from PC (8.40%). There was significant reduction in PCSM-risk in men with unfavorable intermediate-risk PC who received ADT (AHR 0.39, 95% CI 0.16 to 0.92, P=0.033), but no significant difference in PCSM-risk in men with favorable intermediate-risk PC who received ADT (AHR 0.68, 95% CI 0.19 to 2.49, P=0.561). Conclusions: While ADT reduced PCSM-risk in men with unfavorable intermediate-risk PC, there was no significant improvement in men with favorable intermediate-risk PC, suggesting that for these patients ADT in addition to dose-escalated RT may not be required to minimize PCSM-risk. [Table: see text]


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.


Sign in / Sign up

Export Citation Format

Share Document