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Naim A, Lahlou Z, Kaanouch O, Heddat A, Mansouri S. Revolutionizing localized prostate cancer treatment: Stereotactic radiotherapy "Moroccan experience". Arch Ital Urol Androl 2024; 96:12104. [PMID: 38363238 DOI: 10.4081/aiua.2024.12104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 12/23/2023] [Indexed: 02/17/2024] Open
Abstract
INTRODUCTION Prostate cancer is the most common urological cancer, and its incidence is increasing. Radical prostatectomy and radiotherapy are theprimary treatments for localized forms. Stereotactic Body RadioTherapy (SBRT), a new and innovative therapy, has been validated for some cancer localizations but not yet for localized prostate cancer. Our study aims to report the efficacy and tolerance results of SBRT for localized prostate cancer. MATERIALS AND METHODS This is a retrospective study of 27 patients with localized prostate cancer (CaP) who were treated with SBRT in our department from 2017 to 2021 using transponders for tumor tracking. The dose was 36.25 Gy delivered in five fractions of 7.25 Gy. The delineation and doses of organs at risk were determined based on the recommendations of the SFRO and the TG101 report of medical physics. All patients were treated using a latest-generation linear accelerator (True Beam STXÒ). RESULTS Acute toxicities were observed in 33.3% of cases, with 22.2% grade 1 or 2 genitourinary (GU) and no grade 3 while 11.1% gastrointestinal (GI) toxicities were reported as grade 1-2 (7.4%) and one case grade 3 (3.7%). Late grade 1 or 2 GU toxicity was observed in 14.84% of cases, with no reports of late GI toxicity. After a 26-month follow-up period, the biochemical failure-free survival rate was 92.6%. CONCLUSIONS The results of our study are consistent with the existing literature and support the safety and effectiveness of SBRT as a treatment option for localized prostate cancer (CaP). In the United States, both ASTRO and the NCCN recognize SBRT as a valid treatment option for localized CaP. Ongoing phase III trials are being conducted to further substantiate these long-term results and to establish SBRT as the future standard of care for localized CaP.
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Affiliation(s)
- Asmâa Naim
- Faculty of Medicine, Mohammed VI University of Sciences and Health, Casablanca; Research Unit, Mohammed VI Center for Research and Innovation, Rabat; Radiotherapy Department of Casablanca Cancer Center, University International Hospital Cheikh Khalifa, Casablanca.
| | - Zineb Lahlou
- Faculty of Medicine, Mohammed VI University of Sciences and Health, Casablanca; Research Unit, Mohammed VI Center for Research and Innovation, Rabat.
| | - Othmane Kaanouch
- Radiotherapy Department of Casablanca Cancer Center, University International Hospital Cheikh Khalifa, Casablanca; Hassan First University of Settat, High Institute of Health Sciences, Laboratory of Sciences and Health Technologies, Settat.
| | - Abdelajalil Heddat
- Faculty of Medicine, Mohammed VI University of Sciences and Health, Casablanca; Research Unit, Mohammed VI Center for Research and Innovation, Rabat; Urology Department, University International Hospital Cheikh Khalifa, Casablanca.
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Lin HL, Lee CY, Huang JY, Tseng PC, Yang SF. Androgen Deprivation Therapy for Prostate Cancer Did Not Increase the Risk of Retinal Vascular Occlusion: A Population-Based Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19042268. [PMID: 35206456 PMCID: PMC8871724 DOI: 10.3390/ijerph19042268] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 11/16/2022]
Abstract
This study aimed to evaluate the effect of androgen deprivation therapy (ADT) on retinal vascular occlusion (RVO) development in patients with prostate cancer, using data from Taiwan’s National Health Insurance Research Database. A total of 1791, 1791, and 3582 patients were enrolled in the prostate cancer with ADT group, prostate cancer without ADT group, and the control group, respectively. The primary outcome was RVO occurrence, according to diagnostic codes. Cox proportional hazard regression was used to determine the adjusted hazard ratio (aHR) and 95% confidence interval (CI) of ADT and other covariates for RVO incidence. After a follow-up interval of up to 18 years, the patients with prostate cancer who received ADT showed significantly lower RVO incidence than the control group (aHR: 0.191, 95% CI: 0.059–0.621, p = 0.0059), after adjusting for multiple confounders. Hypertension was related to higher RVO incidence (aHR: 2.130, 95% CI: 1.127–4.027, p = 0.0199). Our overall results showed that using ADT for prostate cancer did not lead to a greater risk of RVO development. In fact, the patients with prostate cancer who received ADT had lower RVO incidence than those who did not receive ADT.
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Affiliation(s)
- Hsin-Le Lin
- Department of Ophthalmology, Taipei City Hospital, Renai Branch, Taipei 106243, Taiwan;
| | - Chia-Yi Lee
- Department of Ophthalmology, Nobel Eye Institute, Taipei 106074, Taiwan;
| | - Jing-Yang Huang
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402367, Taiwan;
| | - Po-Chen Tseng
- Department of Ophthalmology, Taipei City Hospital, Renai Branch, Taipei 106243, Taiwan;
- Department of Special Education, University of Taipei, Taipei 100234, Taiwan
- Department of Optometry, University of Kang-Ning, Taipei 114311, Taiwan
- Correspondence: (P.-C.T.); (S.-F.Y.); Tel.: +886-2-2709-3600 (ext. 3395) (P.-C.T.); +886-4-24739595 (ext. 34253) (S.-F.Y.)
| | - Shun-Fa Yang
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402367, Taiwan;
- Institute of Medicine, Chung Shan Medical University, Taichung 402367, Taiwan
- Correspondence: (P.-C.T.); (S.-F.Y.); Tel.: +886-2-2709-3600 (ext. 3395) (P.-C.T.); +886-4-24739595 (ext. 34253) (S.-F.Y.)
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Acute toxicity of 4-week versus 5-week hypofractionated radiotherapy in localised prostate cancer. JOURNAL OF RADIOTHERAPY IN PRACTICE 2021. [DOI: 10.1017/s146039692100025x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Abstract
Aim:
To compare the acute radiation-induced bowel and bladder toxicities of two hypofractionated radiotherapy (HFRT) regimens in localised prostate cancer (PCa).
Materials and methods:
This trial consists of patients with histologically confirmed stage T1-T3aN0M0 PCa, a prostate-specific antigen concentration of 40 ng/mL or lower, and Eastern Cooperative Oncology Group performance status of 0–2. Participants were randomly assigned (1:1) to 56 Gy in 16 fractions over 4 weeks (arm A) or 70·2 Gy in 26 fractions over 5 weeks (arm B). Acute bowel and bladder toxicities were assessed using Radiation Therapy Oncology Group criteria.
Results:
Between June 2018 and December 2019, 40 patients were randomly assigned to treatment with 4-week (n = 20) and 5-week HFRT (n = 20). In the third month after completion of radiotherapy, the cumulative incidence of acute bowel and bladder toxicities of arms A and B was 20 versus 5% and 70 versus 85%, respectively. The cumulative incidence of grade 2 or worse bowel and bladder toxicities of the 5-week regimen was non-inferior to 4-week HFRT [bowel toxicity: 5% (arm A) versus 5% (arm B), bladder toxicity: 50% (arm A) versus 60% (arm B), p = 0·52).
Findings:
The 5-week regimen of HFRT is non-inferior to 4-week HFRT in terms of acute bowel and bladder toxicities.
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Levin-Epstein RG, Jiang NY, Wang X, Upadhyaya SK, Collins SP, Suy S, Aghdam N, Mantz C, Katz AJ, Miszczyk L, Napieralska A, Namysl-Kaletka A, Prionas N, Bagshaw H, Buyyounouski MK, Cao M, Agazaryan N, Dang A, Yuan Y, Kupelian PA, Zaorsky NG, Spratt DE, Mohamad O, Feng FY, Mahal BA, Boutros PC, Kishan AU, Juarez J, Shabsovich D, Jiang T, Kahlon S, Patel A, Patel J, Nickols NG, Steinberg ML, Fuller DB, Kishan AU. Dose-response with stereotactic body radiotherapy for prostate cancer: A multi-institutional analysis of prostate-specific antigen kinetics and biochemical control. Radiother Oncol 2020; 154:207-213. [PMID: 33035622 DOI: 10.1016/j.radonc.2020.09.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/22/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND PURPOSE The optimal dose for prostate stereotactic body radiotherapy (SBRT) is still unknown. This study evaluated the dose-response relationships for prostate-specific antigen (PSA) decay and biochemical recurrence (BCR) among 4 SBRT dose regimens. MATERIALS AND METHODS In 1908 men with low-risk (50.0%), favorable intermediate-risk (30.9%), and unfavorable intermediate-risk (19.1%) prostate cancer treated with prostate SBRT across 8 institutions from 2003 to 2018, we examined 4 regimens (35 Gy/5 fractions [35/5, n = 265, 13.4%], 36.25 Gy/5 fractions [36.25/5, n = 711, 37.3%], 40 Gy/5 fractions [40/5, n = 684, 35.8%], and 38 Gy/4 fractions [38/4, n = 257, 13.5%]). Between dose groups, we compared PSA decay slope, nadir PSA (nPSA), achievement of nPSA ≤0.2 and ≤0.5 ng/mL, and BCR-free survival (BCRFS). RESULTS Median follow-up was 72.3 months. Median nPSA was 0.01 ng/mL for 38/4, and 0.17-0.20 ng/mL for 5-fraction regimens (p < 0.0001). The 38/4 cohort demonstrated the steepest PSA decay slope and greater odds of nPSA ≤0.2 ng/mL (both p < 0.0001 vs. all other regimens). BCR occurred in 6.25%, 6.75%, 3.95%, and 8.95% of men treated with 35/5, 36.25/5, 40/5, and 38/4, respectively (p = 0.12), with the highest BCRFS after 40/5 (vs. 35/5 hazard ratio [HR] 0.49, p = 0.026; vs. 36.25/5 HR 0.42, p = 0.0005; vs. 38/4 HR 0.55, p = 0.037) including the entirety of follow-up, but not for 5-year BCRFS (≥93% for all regimens, p ≥ 0.21). CONCLUSION Dose-escalation was associated with greater prostate ablation and PSA decay. Dose-escalation to 40/5, but not beyond, was associated with improved BCRFS. Biochemical control remains excellent, and prospective studies will provide clarity on the benefit of dose-escalation.
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Affiliation(s)
| | - Naomi Y Jiang
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Xiaoyan Wang
- UCLA Division of General Internal Medicine and Health Services Research, USA
| | - Shrinivasa K Upadhyaya
- Department of Biological and Agricultural Engineering, University of California, Davis, USA
| | - Sean P Collins
- Department of Radiation Medicine, Georgetown University Hospital, USA
| | - Simeng Suy
- Department of Radiation Medicine, Georgetown University Hospital, USA
| | - Nima Aghdam
- Department of Radiation Medicine, Georgetown University Hospital, USA
| | | | - Alan J Katz
- FROS Radiation Oncology and CyberKnife Center, Flushing, USA
| | - Leszek Miszczyk
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Poland
| | - Aleksandra Napieralska
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Poland
| | | | - Nicholas Prionas
- Department of Radiation Oncology, Stanford University Medical Center, USA
| | - Hilary Bagshaw
- Department of Radiation Oncology, Stanford University Medical Center, USA
| | | | - Minsong Cao
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Nzhde Agazaryan
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Audrey Dang
- Department of Radiation Oncology, Tulane Medical Center, New Orleans, USA
| | - Ye Yuan
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Patrick A Kupelian
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Nicholas G Zaorsky
- Department of Radiation Oncology, Penn State Cancer Institute, Hershey, USA
| | - Daniel E Spratt
- Department of Radiation Oncology, University of Michigan, Ann Arbor, USA
| | - Osama Mohamad
- Department of Radiation Oncology, University of California San Francisco, USA
| | - Felix Y Feng
- Department of Radiation Oncology, University of California San Francisco, USA
| | | | - Paul C Boutros
- Department of Human Genetics, University of California, Los Angeles, USA; Department of Urology, University of California, Los Angeles, USA
| | - Arun U Kishan
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Jesus Juarez
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - David Shabsovich
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Tommy Jiang
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Sartajdeep Kahlon
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Ankur Patel
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Jay Patel
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | - Nicholas G Nickols
- Department of Radiation Oncology, University of California, Los Angeles, USA; Department of Radiation Oncology, West Los Angeles Veterans Health Administration, USA
| | - Michael L Steinberg
- Department of Radiation Oncology, University of California, Los Angeles, USA
| | | | - Amar U Kishan
- Department of Radiation Oncology, University of California, Los Angeles, USA; Department of Urology, University of California, Los Angeles, USA.
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Meier RM, Bloch DA, Cotrutz C, Beckman AC, Henning GT, Woodhouse SA, Williamson SK, Mohideen N, Dombrowski JJ, Hong RL, Brachman DG, Linson PW, Kaplan ID. Multicenter Trial of Stereotactic Body Radiation Therapy for Low- and Intermediate-Risk Prostate Cancer: Survival and Toxicity Endpoints. Int J Radiat Oncol Biol Phys 2018; 102:296-303. [PMID: 30191864 DOI: 10.1016/j.ijrobp.2018.05.040] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 02/08/2018] [Accepted: 05/16/2018] [Indexed: 10/14/2022]
Abstract
PURPOSE The radiobiology of prostate cancer may favor the extreme hypofractionation inherent in stereotactic body radiation therapy (SBRT); however, data from a large multicenter study are lacking. We therefore examined the hypothesis that dose-escalated SBRT can be safely administered across multiple institutions, with favorable 5-year disease-free survival (DFS) rates compared with historical controls. METHODS AND MATERIALS Twenty-one centers enrolled 309 patients with prostate adenocarcinoma: 172 with low-risk (LR) and 137 with intermediate-risk (IR) disease. All were treated with a non-coplanar robotic SBRT platform using real-time tracking of implanted fiducials. The prostate was prescribed 40 Gy in 5 fractions of 8 Gy. We assessed toxicities using Common Terminology Criteria for Adverse Events (CTCAE) version 3 and biochemical failure using the "nadir + 2" definition. The study population yielded 90% power to identify excessive (>10%) rates of grade ≥3 genitourinary (GU) or gastrointestinal toxicities and, in the LR group, 80% power to show superiority in DFS over a 93% historical comparison rate. RESULTS At a median follow-up of 61 months, 2 LR patients (1.2%) and 2 IR patients (1.5%) experienced grade 3 GU toxicities, far below the 10% toxicity rate deemed excessive (upper limits of 95% confidence interval, 3.5% and 4.3%, respectively). No grade 4 or 5 toxicities occurred. All grade 3 toxicities were GU, occurring 11 to 51 months after treatment. For the entire group, the actuarial 5-year overall survival rate was 95.6% and the DFS rate was 97.1%. The 5-year DFS rate was 97.3% for LR patients (superior to the 93% DFS rate for historical controls; P = .0008; lower limit of 95% confidence interval, 94.6%) and 97.1% for IR patients. CONCLUSIONS Dose-escalated prostate SBRT was administered with minimal toxicity in this multi-institutional study. Relapse rates compared favorably with historical controls. SBRT is a suitable option for LR and IR prostate cancer.
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Hou WH, Huang CY, Wang CC, Lan KH, Chen CH, Yu HJ, Liu SP, Lai MK, Pu YS, Cheng JCH. Impact of androgen-deprivation therapy on the outcome of dose-escalation prostate cancer radiotherapy without elective pelvic irradiation. Asian J Androl 2018; 19:596-601. [PMID: 27506334 PMCID: PMC5566856 DOI: 10.4103/1008-682x.183569] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The benefit of androgen-deprivation therapy (ADT) in combination with dose-escalated radiotherapy (DERT) for localized prostate cancer has not been determined in randomized studies. In this study, the benefit of ADT was assessed in patients uniformly treated with dose-escalated intensity-modulated radiation therapy (IMRT) to the prostate and seminal vesicles but not pelvis. In all, 419 patients with localized prostate adenocarcinoma underwent definitive IMRT (cumulative dose 78 Gy), with 32.6%, 33.1%, 32.1%, and 2.1% having T1 through T4 disease, respectively, and 51.2% having high-risk disease. ADT was given to 76.1% of patients. With a median follow-up of 60 months, 5-year biochemical failure-free, disease-free, and overall survival rates were 87%, 86%, and 87%, respectively. T stage was an independent predictor of all three rates. Five-year pelvic nodal recurrence rate was 2.9%. ADT improved biochemical failure-free and disease-free survival but not overall survival. ADT showed benefit in high-risk disease but not intermediate-risk disease. Late gastrointestinal and genitourinary toxicities ≥ grade 2 occurred in 11.0% and 6.7%, respectively. In conclusion, DERT with 78 Gy yields good disease control and low rate of pelvic nodal recurrence. ADT improves disease-free survival in patients with high-risk but not intermediate-risk disease.
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Affiliation(s)
- Wei-Hsien Hou
- Division of Radiation Oncology, Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan, China
| | - Chao-Yuan Huang
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan, China
| | - Chia-Chun Wang
- Division of Radiation Oncology, Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan, China
| | - Keng-Hsueh Lan
- Division of Radiation Oncology, Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan, China
| | - Chung-Hsin Chen
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan, China
| | - Hong-Jen Yu
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan, China
| | - Shih-Ping Liu
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan, China
| | - Ming-Kuen Lai
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan, China
| | - Yeong-Shau Pu
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan, China
| | - Jason Chia-Hsien Cheng
- Division of Radiation Oncology, Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan, China.,Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan, China.,Graduate Institutes of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan, China.,Graduate Institutes of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan, China
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7
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McPartlin AJ, Glicksman R, Pintilie M, Tsuji D, Mok G, Bayley A, Chung P, Bristow RG, Gospodarowicz MK, Catton CN, Milosevic M, Warde PR. PMH 9907: Long-term outcomes of a randomized phase 3 study of short-term bicalutamide hormone therapy and dose-escalated external-beam radiation therapy for localized prostate cancer. Cancer 2016; 122:2595-603. [PMID: 27219522 DOI: 10.1002/cncr.30093] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/06/2016] [Accepted: 04/12/2016] [Indexed: 11/12/2022]
Abstract
BACKGROUND The role of hormone therapy (HT) with dose-escalated external-beam radiotherapy (DE-EBRT) in the treatment of intermediate-risk prostate cancer (IRPC) remains controversial. The authors report the long-term outcome of a phase 3 study of DE-EBRT with or without HT for patients with localized prostate cancer (LPC). METHODS From 1999 to 2006, 252 of an intended 338 patients with LPC were randomized to receive DE-EBRT with or without 5 months of neoadjuvant and concurrent bicalutamide 150 mg once daily. The study was closed early because of contemporary concerns surrounding bicalutamide. The primary outcome was biochemical failure (BF) incidence, and the secondary endpoints were overall survival (OS), local control (LC), and quality of life. The BF and OS rates were estimated using the cumulative incidence function and Kaplan-Meier methods and were compared using the Gray test and the log-rank test. RESULTS Eleven patients were excluded from analysis. Characteristics were well balanced in each treatment arm. Ninety-five percent of patients had IRPC. The prescribed dose increased from 75.6 grays (Gy) in 42 fractions to 78 Gy in 39 fractions over the period. At a median follow-up of 9.1 years, 98 BFs occurred, with no significant effect of HT versus no HT on the BF rate (40% vs 47%; P = .32), the OS rate (82% vs 86%; P = .37), the LC rate (52% vs 48 %; P = .32) or quality of life, in the patients who completed the questionnaires. Dose escalation to 75.6 Gy versus >75.6 Gy reduced the BF rate by 26% (P = .004). CONCLUSIONS For patients who predominantly have IRPC, the addition of HT to DE-EBRT did not significantly affect BF, OS, or LC. Bicalutamide appeared to be well tolerated. The conclusions from the study are limited by incomplete recruitment. Cancer 2016;122:2595-603. © 2016 American Cancer Society.
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Affiliation(s)
- Andrew J McPartlin
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Hospital, University Health Network, Toronto, Ontario, Canada
| | - Rachel Glicksman
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Hospital, University Health Network, Toronto, Ontario, Canada
| | - Melania Pintilie
- Division of Biostatistics, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Debbie Tsuji
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Gary Mok
- Department of Radiology, Radiation Oncology, and Nuclear Medicine, University Hospital Center of Montreal, Montreal, Quebec, Canada
| | - Andrew Bayley
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Hospital, University Health Network, Toronto, Ontario, Canada
| | - Peter Chung
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Hospital, University Health Network, Toronto, Ontario, Canada
| | - Robert G Bristow
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Hospital, University Health Network, Toronto, Ontario, Canada
| | - Mary K Gospodarowicz
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Hospital, University Health Network, Toronto, Ontario, Canada
| | - Charles N Catton
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Hospital, University Health Network, Toronto, Ontario, Canada
| | - Michael Milosevic
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Hospital, University Health Network, Toronto, Ontario, Canada
| | - Padraig R Warde
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.,Princess Margaret Hospital, University Health Network, Toronto, Ontario, Canada
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Falchook AD, Basak R, Mohiuddin JJ, Chen RC. Evaluation of the effectiveness of adding androgen deprivation to modern dose-escalated radiotherapy for men with favorable intermediate-risk prostate cancer. Cancer 2016; 122:2341-9. [DOI: 10.1002/cncr.30049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/18/2016] [Accepted: 02/23/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Aaron D. Falchook
- Department of Radiation Oncology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Ramsankar Basak
- Department of Radiation Oncology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Jahan J. Mohiuddin
- Department of Radiation Oncology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Ronald C. Chen
- Department of Radiation Oncology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
- University of North Carolina Lineberger Comprehensive Cancer Center; Chapel Hill North Carolina
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Stratification of brachytherapy-treated intermediate-risk prostate cancer patients into favorable and unfavorable cohorts. J Contemp Brachytherapy 2015; 7:430-6. [PMID: 26816337 PMCID: PMC4716130 DOI: 10.5114/jcb.2015.56763] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 12/18/2015] [Indexed: 01/11/2023] Open
Abstract
Purpose To evaluate biochemical failure (BF) and prostate cancer specific mortality (PCSM) in intermediate-risk (IR) brachytherapy patients stratified into favorable and unfavorable cohorts, and to compare those outcomes to patients with low (LR) and high-risk (HR) disease. Material and methods From March 1995 till February 2012, 2,502 consecutive patients underwent permanent interstitial brachytherapy for clinically localized prostate cancer. Patients were stratified into risk groups as per the NCCN guidelines with further stratification of the intermediate risk cohort into unfavorable (primary Gleason pattern 4, ≥ 50% positive biopsies or ≥ 2 IR features) and favorable cohorts. Median follow-up was 8.5 years. The brachytherapy prescription dose was prescribed to the prostate gland with generous periprostatic margins. Biochemical failure was defined as a PSA > 0.40 ng/ml after nadir. Patients with metastatic prostate cancer or non-metastatic castrate resistant disease who died of any cause were classified as dead of prostate cancer. Multiple parameters were evaluated for effect on outcomes. Results Fifteen year BF for LR, favorable IR, unfavorable IR, and HR were 1.4%, 2.2%, 7.1%, and 11.1% (p < 0.001), respectively. At 15 years, PCSM for LR, favorable IR, unfavorable IR, and HR was 0.3%, 0.6%, 2.2% and 4.6% (p < 0.001), respectively. In multivariate analysis, BF was best predicted by risk group, pre-implant PSA, percent positive biopsies, prostate volume, and ADT duration, while PCSM was most closely related to risk group, percent positive biopsies and prostate volume. Conclusions Patients with favorable IR disease have biochemical and PCSM outcomes comparable to those of patients with LR disease. Although unfavorable IR has greater than a 3-fold increased risk of BF and PCSM when compared to favorable IR, the outcomes remain superior to those men with HR disease.
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Merrick GS, Wallner KE, Galbreath RW, Butler WM, Adamovich E. Is supplemental external beam radiation therapy essential to maximize brachytherapy outcomes in patients with unfavorable intermediate-risk disease? Brachytherapy 2015; 15:79-84. [PMID: 26525214 DOI: 10.1016/j.brachy.2015.09.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 09/21/2015] [Accepted: 09/28/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE To evaluate whether supplemental external beam radiotherapy (EBRT) is essential to maximize Pd-103 brachytherapy outcomes in patients with unfavorable intermediate-risk (IR) disease. METHODS AND MATERIALS A total of 630 patients were assessed from two prospective randomized brachytherapy trials evaluating the role of supplemental EBRT in patients with higher risk features. Patients were stratified into unfavorable IR (primary Gleason pattern 4, ≥50% positive biopsies, or ≥2 IR features), favorable IR, and high-risk (HR) cohorts. Median follow-up was 7.5 years. The brachytherapy prescription dose was prescribed to the prostate gland with generous periprostatic margins. Biochemical failure (BF) was defined as a prostate-specific antigen >0.40 ng/mL after nadir. Patients with metastatic prostate cancer or nonmetastatic castrate-resistant disease who died of any cause were classified as dead of prostate cancer. Multiple parameters were evaluated for effect on outcomes. RESULTS The 10-year BF for favorable IR, unfavorable IR, and HR was 1.7%, 6.6%, and 15.5% (p < 0.001). At 10 years, prostate cancer-specific mortality (PCSM) and overall mortality (OM) were 0% and 20.4%, 2.1% and 23.2%, and 4.3% and 42.4% for favorable IR, unfavorable IR, and HR. Although unfavorable IR patients had a greater incidence of BF, PCSM, and OM when compared with favorable IR, neither the addition nor dose of supplemental EBRT influenced outcome. CONCLUSIONS Outcomes for favorable IR were superior to those with unfavorable IR. Within the confines of this study, neither the addition nor dose of supplemental EBRT influenced BF, PCSM, or OM in patients with IR disease.
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Affiliation(s)
- Gregory S Merrick
- Department of Radiation Oncology, Schiffler Cancer Center, Wheeling Jesuit University, Wheeling, WV; Department of Urology, Wheeling Hospital, Wheeling, WV.
| | - Kent E Wallner
- Department of Radiation Oncology, Puget Sound Healthcare Corporation, Group Health Cooperative, University of Washington, Seattle, WA
| | - Robert W Galbreath
- Department of Radiation Oncology, Schiffler Cancer Center, Wheeling Jesuit University, Wheeling, WV; Ohio Univeristy Eastern, St. Clairsville, OH
| | - Wayne M Butler
- Department of Radiation Oncology, Schiffler Cancer Center, Wheeling Jesuit University, Wheeling, WV
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Strom TJ, Cruz AA, Figura NB, Shrinath K, Nethers K, Mellon EA, Fernandez DC, Saini AS, Hunt DC, Heysek RV, Wilder RB. Health-related quality-of-life changes due to high-dose-rate brachytherapy, low-dose-rate brachytherapy, or intensity-modulated radiation therapy for prostate cancer. Brachytherapy 2015; 14:818-25. [DOI: 10.1016/j.brachy.2015.08.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 08/06/2015] [Accepted: 08/31/2015] [Indexed: 01/08/2023]
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Hennequin C, Guillerm S, Quero L. [Radiotherapy in elderly patients, recommendations for the main localizations: Breast, prostate and gynaecological cancers]. Cancer Radiother 2015; 19:397-403. [PMID: 26282214 DOI: 10.1016/j.canrad.2015.05.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 05/21/2015] [Indexed: 11/18/2022]
Abstract
Modifications of radiotherapy indications or schedules because of age could be discussed in view of a different evolution of the disease or because of specific toxicities. One important aim is to decrease the number of hospital transports. For breast cancer, the rate of local relapse after lumpectomy is lower in old patients; moreover, characteristics of the disease are often more favourable (hormonosensitivity, low grade). However, adjuvant irradiation decreases significantly the incidence of breast relapse and must be systematically proposed. Hypofractionnated schedules must be recommended; limited data are available for accelerated partial breast irradiation in old women and these techniques must not be used in routine. For low or intermediate risk prostate cancer, assessment of comorbidities is crucial before considering any invasive treatment. A life expectancy of at least 10 years is required if a curative approach, potentially toxic is proposed. In this case, radiotherapy is often the good choice, giving less sequelae than surgery. The indication of androgen deprivation must take into account cardiovascular and bone history. Management of gynaecological cancers must follow the same recommendations as in young women. Exclusive postoperative brachytherapy must be recommended in early stage endometrial carcinomas. Brachytherapy must be also systematically integrated in the radiotherapy program for cervix cancers, even in old women.
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Affiliation(s)
- C Hennequin
- Service de cancérologie-radiothérapie, hôpital Saint-Louis, AP-HP, 1, avenue Claude-Vellefeaux, 75475 Paris, France; Université Paris Diderot, 1, avenue Claude-Vellefeaux, 75475 Paris, France.
| | - S Guillerm
- Service de cancérologie-radiothérapie, hôpital Saint-Louis, AP-HP, 1, avenue Claude-Vellefeaux, 75475 Paris, France; Université Paris Diderot, 1, avenue Claude-Vellefeaux, 75475 Paris, France
| | - L Quero
- Service de cancérologie-radiothérapie, hôpital Saint-Louis, AP-HP, 1, avenue Claude-Vellefeaux, 75475 Paris, France; Université Paris Diderot, 1, avenue Claude-Vellefeaux, 75475 Paris, France
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Meier R. Dose-Escalated Robotic SBRT for Stage I-II Prostate Cancer. Front Oncol 2015; 5:48. [PMID: 25905037 PMCID: PMC4387928 DOI: 10.3389/fonc.2015.00048] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 02/11/2015] [Indexed: 11/13/2022] Open
Abstract
Stereotactic body radiotherapy (SBRT) is the precise external delivery of very high-dose radiotherapy to targets in the body, with treatment completed in one to five fractions. SBRT should be an ideal approach for organ-confined prostate cancer because (I) dose-escalation should yield improved rates of cancer control; (II) the unique radiobiology of prostate cancer favors hypofractionation; and (III) the conformal nature of SBRT minimizes high-dose radiation delivery to immediately adjacent organs, potentially reducing complications. This approach is also more convenient for patients, and is cheaper than intensity-modulated radiotherapy (IMRT). Several external beam platforms are capable of delivering SBRT for early-stage prostate cancer, although most of the mature reported series have employed a robotic non-coplanar platform (i.e., CyberKnife). Several large studies report 5-year biochemical relapse rates which compare favorably to IMRT. Rates of late GU toxicity are similar to those seen with IMRT, and rates of late rectal toxicity may be less than with IMRT and low-dose rate brachytherapy. Patient-reported quality of life (QOL) outcomes appear similar to IMRT in the urinary domain. Bowel QOL may be less adversely affected by SBRT than with other radiation modalities. After 5 years of follow-up, SBRT delivered on a robotic platform is yielding outcomes at least as favorable as IMRT, and may be considered appropriate therapy for stage I–II prostate cancer.
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The Influence of Age and Comorbidity on the Benefit of Adding Androgen Deprivation to Dose-escalated Radiation in Men With Intermediate-risk Prostate Cancer. Am J Clin Oncol 2014; 39:368-73. [PMID: 24732810 DOI: 10.1097/coc.0000000000000071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Androgen deprivation therapy (ADT) can improve outcomes for men with intermediate-risk prostate cancer (IR-PrCa) receiving external-beam radiotherapy (EBRT). Older men and men with significant comorbidity may be more susceptible to the harms of ADT, therefore we aimed to determine whether these men benefit from ADT. METHODS The adult comorbidity evaluation-27 index categorized severity of comorbidity in 636 men treated for IR-PrCa with dose-escalated EBRT (>75 Gy). The cohort was dichotomized at median age of 70. Multivariate Cox proportional hazard analysis evaluated the association of ADT with failure-free survival (FFS) for each age and comorbidity subgroup. RESULTS A total of 48% of men were 70 years and above. After adjustment for tumor characteristics, the addition of ADT to EBRT was associated with improved FFS for both men below 70 years of age (adjusted hazard ratio [AHR] 0.44; 95% confidence interval [CI], 0.19-0.99; P=0.046) and men 70 years and above (AHR 0.23; 95% CI, 0.06-0.91; P=0.035). ADT improved FFS for men below 70 years who had no or mild comorbidity (AHR 0.25; 95% CI, 0.09-0.73; P=0.011) but not for men below 70 years who had moderate or severe comorbidity (AHR 1.62; 95% CI, 0.35-7.49; P=0.537). Similarly, in men 70 years and above, there was a trend for improved FFS with ADT in healthy men (AHR 0.10; 95% CI, 0.01-1.08; P=0.058) but not in men with moderate to severe comorbidity (AHR 0.38; 95% CI, 0.06-2.56; P=0.318). CONCLUSIONS The addition of ADT to dose-escalated EBRT can improve outcomes for both younger and older men with IR-PrCa. This benefit was more pronounced in healthy men.
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Keane FK, Chen MH, Zhang D, Loffredo MJ, Kantoff PW, Renshaw AA, D'Amico AV. The likelihood of death from prostate cancer in men with favorable or unfavorable intermediate-risk disease. Cancer 2014; 120:1787-93. [DOI: 10.1002/cncr.28609] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/28/2013] [Accepted: 01/13/2014] [Indexed: 11/12/2022]
Affiliation(s)
- Florence K. Keane
- Harvard Radiation Oncology Program; Harvard Medical School; Boston Massachusetts
| | - Ming-Hui Chen
- Department of Statistics; University of Connecticut; Storrs Connecticut
| | - Danjie Zhang
- Department of Statistics; University of Connecticut; Storrs Connecticut
| | - Marian J. Loffredo
- Department of Radiation Oncology; Dana Farber Cancer Institute and Brigham and Women's Hospital; Boston Massachusetts
| | - Philip W. Kantoff
- Department of Medical Oncology; Dana Farber Cancer Institute and Brigham and Women's Hospital; Boston Massachusetts
| | | | - Anthony V. D'Amico
- Department of Radiation Oncology; Dana Farber Cancer Institute and Brigham and Women's Hospital; Boston Massachusetts
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Abstract
Elderly men comprise a large percentage of men diagnosed with prostate cancer (PrCa). Although localized PrCa is often indolent, older men tend to be diagnosed with higher-stage disease and are more likely to die from PrCa than younger men. Multiple factors other than age play an important role in determining who will benefit from active treatment, such as comorbid conditions, life expectancy, and tumor characteristics. Careful consideration of such factors can help prevent the overtreatment of elderly men with low-risk disease and undertreatment of elderly men with high-risk disease. Management decisions should be individualized by weighing the benefits of treatment against potential risks and side effects pertinent to the elderly population, whether evaluating for surgery, radiation, or androgen deprivation.
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Affiliation(s)
- Shelly X Bian
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, TX 77030, USA
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Hoffman KE. Management of Older Men With Clinically Localized Prostate Cancer: The Significance of Advanced Age and Comorbidity. Semin Radiat Oncol 2012; 22:284-94. [DOI: 10.1016/j.semradonc.2012.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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