scholarly journals Early Versus Delayed Initiation of Salvage Androgen Deprivation Therapy and Risk of Prostate Cancer–Specific Mortality

2018 ◽  
Vol 16 (6) ◽  
pp. 727-734 ◽  
Author(s):  
Brandon A. Mahal ◽  
Ming-Hui Chen ◽  
Andrew A. Renshaw ◽  
Marian J. Loffredo ◽  
Philip W. Kantoff ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Androgen Deprivation Therapy ◽  
Androgen Deprivation ◽  
Specific Mortality ◽  
Delayed Initiation ◽  
Salvage Androgen Deprivation Therapy ◽  
Cancer Specific Mortality

scholarly journals Effectiveness of Primary Androgen-Deprivation Therapy for Clinically Localized Prostate Cancer

2014 ◽  
Vol 32 (13) ◽  
pp. 1324-1330 ◽  
Author(s):  
Arnold L. Potosky ◽  
Reina Haque ◽  
Andrea E. Cassidy-Bushrow ◽  
Marianne Ulcickas Yood ◽  
Miao Jiang ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Androgen Deprivation Therapy ◽  
Androgen Deprivation ◽  
Localized Prostate Cancer ◽  
Curative Intent ◽  
Primary Androgen Deprivation Therapy ◽  
All Cause Mortality ◽  
Specific Mortality ◽  
Cancer Specific Mortality ◽  
Primary Androgen Deprivation

Purpose Primary androgen-deprivation therapy (PADT) is often used to treat clinically localized prostate cancer, but its effects on cause-specific and overall mortality have not been established. Given the widespread use of PADT and the potential risks of serious adverse effects, accurate mortality data are needed to inform treatment decisions. Methods We conducted a retrospective cohort study using comprehensive utilization and cancer registry data from three integrated health plans. All men were newly diagnosed with clinically localized prostate cancer. Men who were diagnosed between 1995 and 2008, were not treated with curative intent therapy, and received follow-up through December 2010 were included in the study (n = 15,170). We examined all-cause and prostate cancer-specific mortality as our main outcomes. We used Cox proportional hazards models with and without propensity score analysis. Results Overall, PADT was associated with neither a risk of all-cause mortality (hazard ratio [HR], 1.04; 95% CI, 0.97 to 1.11) nor prostate-cancer–specific mortality (HR, 1.03; 95% CI, 0.89 to 1.19) after adjusting for all sociodemographic and clinical characteristics. PADT was associated with decreased risk of all-cause mortality but not prostate-cancer–specific mortality. PADT was associated with decreased risk of all-cause mortality only among the subgroup of men with a high risk of cancer progression (HR, 0.88; 95% CI, 0.78 to 0.97). Conclusion We found no mortality benefit from PADT compared with no PADT for most men with clinically localized prostate cancer who did not receive curative intent therapy. Men with higher-risk disease may derive a small clinical benefit from PADT. Our study provides the best available contemporary evidence on the lack of survival benefit from PADT for most men with clinically localized prostate cancer.

Early versus delayed initiation of salvage androgen deprivation therapy and the risk of prostate cancer-specific mortality.

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
Keyword(s):  
Prostate Cancer ◽  
Androgen Deprivation Therapy ◽  
Specific Antigen ◽  
Androgen Deprivation ◽  
Early Initiation ◽  
Study Cohort ◽  
Increased Risk ◽  
Specific Mortality ◽  
Salvage Androgen Deprivation Therapy

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.

Association of androgen-deprivation therapy with excess cardiac-specific mortality in men with prostate cancer

2014 ◽  
Vol 116 (3) ◽  
pp. 358-365 ◽  
Author(s):  
David R. Ziehr ◽  
Ming-Hui Chen ◽  
Danjie Zhang ◽  
Michelle H. Braccioforte ◽  
Brian J. Moran ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Androgen Deprivation Therapy ◽  
Androgen Deprivation ◽  
Specific Mortality
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