Long-term outcomes of active surveillance for prostate cancer: 10 years later.

2013 ◽  
Vol 31 (6_suppl) ◽  
pp. 170-170
Author(s):  
David D. Buethe ◽  
Christopher Russell ◽  
Binglin Yue ◽  
Hui-Yi Lin ◽  
Julio M. Pow-Sang

170 Background: Prostate cancer (CaP) has exhibited a downward stage migration during the PSA era. Approximately 70% of those newly diagnosed with CaP, harbor tumors of low-risk. Such tumors often prove to be of low-volume and of clinical insignificance at time of radical prostatectomy (RP), suggesting over treatment and excessive exposure to the morbidity associated with definitive management. Over the last decade, active surveillance (AS) strategies have become a more accepted practice when addressing low-risk tumors. We present the long-term oncologic outcomes of patients placed on AS. Methods: An IRB approved retrospective chart review identified 114 patients placed on AS for their CaP between November of 1997 and November of 2000. Of those, 96 patients meet study inclusion criteria mandating a Gleason sum of < 7, tumor presence in < 4 sextets, and involvement of <50% of any single biopsy core. Eligible patients were surveyed by serum PSA , digital rectal exam, and surveillance transrectal ultrasound (TRUS)-guided biopsies at physician determined intervals. Results: At diagnosis, the mean age was 70.3 (SD±5.3) years with a mean PSA value of 8.2 (SD±8.2) ng/dL. Surveillance patterns approached acquisition of a PSA at a mean of 9 months and a TRUS-guided biopsy of the prostate every 1.5 years. The median total number of PSA’s and biopsies obtained while on surveillance were 6.0 (SD±5.72) and 3.5(SD±2.02), respectively. At a median follow-up of 134.8 months (95%CI: 114.5, 148.7), 52 (54%) of patients had been reclassified or demonstrated disease progression. The median progression-free and overall survival for the cohort were 68.7 (95%CI: 53.2, 97.3) months and 156.9 (95%CI: 139.9, 161.5) months, respectively. Only one prostate cancer specific mortality was identified. Conclusions: AS presents a reasonable management strategy option for low-risk prostate cancer in appropriately selected patients. However, treatment at time of disease progression did not improve survival. A significant percentage of men on AS are exposed to progression of their disease if alive beyond 10 years from their diagnosis.

2013 ◽  
Vol 31 (6_suppl) ◽  
pp. 238-238
Author(s):  
David D. Buethe ◽  
Christopher Russell ◽  
Binglin Yue ◽  
Hui-Yi Lin ◽  
Julio M. Pow-Sang

238 Background: Limited derived benefit from definitive treatment has been observed with respect to prostate cancer−specific mortality (PCSM) in those low−risk disease and only small absolute risk reductions in both overall PCSM and incidence of metastasis have been demonstrated. Thus, active surveillance (AS) strategies have been adopted to monitor for disease progression with intent for intervention at time of disease reclassification. Yet, the timing and frequency of surveillance remain without evidence-based standardization. We assessed the relationship between the frequency of surveillance prostate biopsies and the oncologic outcomes in those patients with low−risk prostate cancer (CaP) managed by AS. Methods: An IRB approved retrospective chart review identified 114 patients placed on AS for their CaP between November of 1997 and November of 2000. Of those, 96 patients meet study inclusion criteria mandating a Gleason sum of < 7, tumor presence in < 4 sextets, involvement of <50% of any single biopsy core. Eligible patients were surveyed by serum PSA, DRE, and surveillance TRUS−guided biopsies at physician determined intervals. Results: At diagnosis, the mean age was 70.3 (SD±5.3) years with a mean PSA value of 8.2 (SD±8.2) ng/dL. While on AS, patients underwent a median of 3.5 (SD±2.02) TRUS−guided biopsies; at a frequency approaching 1 biopsy every 18 months. At a median follow−up of 134.8 months (95%CI: 114.5, 148.7), multivariate analysis found more frequent prostatic biopsy acquisition to be inversely associated a worse prognosis with respect to both progression−free (p<0.0001) and overall survival (p=0.0002). Both progression−free (p<0.0001) and overall survival (p=0.0207) were progressively shorter as the interval between biopsies declined from greater than 2 years, to 1−2 years, and then less than 1 year. Conclusions: No survival advantage was achieved by frequent re−biopsy of the prostate. Patients biopsied more frequently were paradoxically found have poorer survival outcomes.


2018 ◽  
Vol 73 (6) ◽  
pp. 859-867 ◽  
Author(s):  
Sam J. Egger ◽  
Ross J. Calopedos ◽  
Dianne L. O’Connell ◽  
Suzanne K. Chambers ◽  
Henry H. Woo ◽  
...  

2020 ◽  
Vol 203 ◽  
pp. e345
Author(s):  
Narhari Timilshina* ◽  
Patrick Richard ◽  
Maria Komisarenko ◽  
Doug Cheung ◽  
Lisa Martin ◽  
...  

2013 ◽  
Vol 31 (6_suppl) ◽  
pp. 1-1 ◽  
Author(s):  
Suneil Jain ◽  
Danny Vesprini ◽  
Alexandre Mamedov ◽  
D. Andrew Loblaw ◽  
Laurence Klotz

1 Background: Active surveillance (AS) is an accepted management strategy for localized prostate cancer. However, the rate of pathological upgrading has not been well described in mature study cohorts. Furthermore, concern exists over the possibility of prostate cancer dedifferentiation with time in patients on AS. Methods: Patients in our prospectively collected AS database with at least one repeat prostate biopsy were included. Linear regression analysis was used to estimate the proportion of patients upgraded (Gleason 6 to 3+4 or higher, Gleason 3+4 to 4+3 or higher) with time from diagnostic biopsy. Results: 593 of 862 patients in our cohort had at least one repeat biopsy. Median follow-up was 6.4 years (max. 20.2 years). The total number of biopsies ranged from 2 to 6. 20% of patients were intermediate risk, 0.3 % high risk, all others low risk. 31.2% of patients were upgraded during active surveillance. The proportion of patients upgraded increased with time, suggesting prostate cancer dedifferentiation occurred at a rate of 1.0%/year (95%CI -0.12 to 2.16%/year). The estimated rate of increase was 2.5 times higher in patients with intermediate risk disease at diagnosis (rate 1.9%/year, 95%CI -0.7-4.6) compared with those with low risk disease (rate 0.75%/year, 95%CI -0.5-2.0). Further analysis is underway. 62% of upgraded patients (n=114) went on to have active treatment. Patients who were upgraded and treated had significantly greater PSA velocities (median 1.2 ng/ml/y vs 0.42 ng/ml/y, p=0.01) and significantly higher Gleason scores when upgraded, than those who remained on surveillance (21.8% vs 2.8% Gleason 8-10, p<0.01). Conclusions: This is the largest re-biopsy cohort, with long-term follow-up, described to date, enabling the first estimates of prostate cancer dedifferentiation in patients on AS. Dedifferentiation rates appear higher in patients with intermediate risk prostate cancer compared with those who are low risk at baseline.


2015 ◽  
Vol 33 (7_suppl) ◽  
pp. 178-178
Author(s):  
Hima Bindu Musunuru ◽  
Gerard Morton ◽  
Laurence Klotz ◽  
Danny Vespirini ◽  
Patrick Cheung ◽  
...  

178 Background: To evaluate outcomes and treatment history of low risk (LR) prostate cancer patients(pts) diagnosed between 2006-2008 in a single academic institute. Methods: Treatment and toxicity details were retrieved through retrospective chart review,apart from surgery where toxicity data was not available in detail.Biochemical RFS following primary and salvage treatments and CSS were computed.Pts who underwent salvage treatment for local failure and subsequently remained under biochemical control were censored as disease free for the salvage bRFS. Results: 594 pts were eligible for this study. Treatment options were active surveillance (AS=178 pts), low dose rate brachytherapy (LDR=192 pts, I-125 implant), stereotactic ablative body radiotherapy (SABR =84 pts; 35Gy in 5 weekly fractions), external beam radiation (EBRT=81 pts; 76Gy ) and radical prostatectomy (RP=59 pts). Median follow was > 70 months in all cohorts. 17.9% on AS protocol underwent active treatment. Biochemical failures were detected in 9 (5%), 10 (5.2%), 3 (3.5%), 6 (7.4%) and 9 (15.3%) pts respectively. Out of these, 4 pts in AS cohort, 2 in SABR group, and 7 in RP underwent local/salvage treatment. The 7-year bRFS was 94.4%, 93.6%, 95.8%, 90.1% and 89.5% for primary treatment and 95.7%, 93.6%, 98.7%, 90.1% and 98.3% following salvage treatment. 1 pt in AS, 2 in LDR, 1 pt in SABR and EBRT group developed metastatic disease. The 6 year CSS was 100% in all groups apart from LDR (99.4%) and EBRT (98.8%). Significant dysuria (20.8%) and hematochezia (7.4%) were noticed in EBRT cohort (Table). One grade 4 toxicity was noted in LDR, SABR and EBRT pts. Conclusions: AS has CSS comparable to other treatment options in LR prostate cancer setting with minimal toxicity. In the primary setting all treatment modalities apart from RP and EBRT have 7-year bRFS >93%. Differences in bRFS following salvage treatment might be due to pt and treatment selection. [Table: see text]


2013 ◽  
Vol 31 (24) ◽  
pp. 2991-2997 ◽  
Author(s):  
Debasish Sundi ◽  
Ashley E. Ross ◽  
Elizabeth B. Humphreys ◽  
Misop Han ◽  
Alan W. Partin ◽  
...  

Purpose Active surveillance (AS) is a treatment option for men with very low–risk prostate cancer (PCa); however, favorable outcomes achieved for men in AS are based on cohorts that under-represent African American (AA) men. To explore whether race-based health disparities exist among men with very low–risk PCa, we evaluated oncologic outcomes of AA men with very low–risk PCa who were candidates for AS but elected to undergo radical prostatectomy (RP). Patients and Methods We studied 1,801 men (256 AA, 1,473 white men, and 72 others) who met National Comprehensive Cancer Network criteria for very low–risk PCa and underwent RP. Presenting characteristics, pathologic data, and cancer recurrence were compared among the groups. Multivariable modeling was performed to assess the association of race with upgrading and adverse pathologic features. Results AA men with very low–risk PCa had more adverse pathologic features at RP and poorer oncologic outcomes. AA men were more likely to experience disease upgrading at prostatectomy (27.3% v 14.4%; P < .001), positive surgical margins (9.8% v 5.9%; P = .02), and higher Cancer of the Prostate Risk Assessment Post-Surgical scoring system (CAPRA-S) scores. On multivariable analysis, AA race was an independent predictor of adverse pathologic features (odds ratio, [OR], 3.23; P = .03) and pathologic upgrading (OR, 2.26; P = .03). Conclusion AA men with very low–risk PCa who meet criteria for AS but undergo immediate surgery experience significantly higher rates of upgrading and adverse pathology than do white men and men of other races. AA men with very low–risk PCa should be counseled about increased oncologic risk when deciding among their disease management options.


2018 ◽  
Vol 199 (5) ◽  
pp. 1188-1195 ◽  
Author(s):  
Derek J. Gearman ◽  
Alessandro Morlacco ◽  
John C. Cheville ◽  
Laureano J. Rangel ◽  
R. Jeffrey Karnes

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