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Turco F, Buttigliero C, Delcuratolo MD, Gillessen S, Vogl UM, Zilli T, Fossati N, Gallina A, Farinea G, Di Stefano RF, Calabrese M, Saporita I, Crespi V, Poletto S, Palesandro E, Di Maio M, Scagliotti GV, Tucci M. Hormonal Agents in Localized and Advanced Prostate Cancer: Current Use and Future Perspectives. Clin Genitourin Cancer 2024; 22:102138. [PMID: 38996529 DOI: 10.1016/j.clgc.2024.102138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/07/2024] [Accepted: 06/08/2024] [Indexed: 07/14/2024]
Abstract
Prostate cancer (PC) is generally a hormone-dependent tumor. Androgen deprivation therapy ( has been the standard of care in metastatic disease for more than 80 years. Subsequent studies have highlighted the efficacy of ADT even in earlier disease settings such as in localized disease or in the case of biochemical recurrence (BCR). Improved knowledge of PC biology and ADT resistance mechanisms have led to the development of novel generation androgen receptor pathway inhibitors (ARPI). Initially used only in patients who became resistant to ADT, ARPI have subsequently shown to be effective when used in patients with metastatic hormone-naive disease and in recent years their effectiveness has also been evaluated in localized disease and in case of BCR. The objective of this review is to describe the current role of agents interfering with the androgen receptor in different stages of PC and to point out future perspectives.
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Affiliation(s)
- Fabio Turco
- Department of Oncology, IOSI (Oncology Institute of Southern Switzerland), Ente Ospedaliero Cantonale (EOC), Bellinzona, Canton Ticino, Switzerland; Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Consuelo Buttigliero
- Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Marco Donatello Delcuratolo
- Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Silke Gillessen
- Department of Oncology, IOSI (Oncology Institute of Southern Switzerland), Ente Ospedaliero Cantonale (EOC), Bellinzona, Canton Ticino, Switzerland; Department of Oncology, Universita della Svizzera Italiana, Lugano, Ticino, Switzerland
| | - Ursula Maria Vogl
- Department of Oncology, IOSI (Oncology Institute of Southern Switzerland), Ente Ospedaliero Cantonale (EOC), Bellinzona, Canton Ticino, Switzerland
| | - Thomas Zilli
- Department of Oncology, Universita della Svizzera Italiana, Lugano, Ticino, Switzerland; Department of Oncology, Radiation Oncology, Oncology Institute of Southern Switzerland, EOC, Canton Ticino, Bellinzona, Switzerland; Faculty of Medicine, University of Geneva, Geneva, Geneva, Switzerland
| | - Nicola Fossati
- Department of Urology, Ospedale Regionale di Lugano, Civico USI - Università della Svizzera Italiana, Lugano, Ticino, Switzerland
| | - Andrea Gallina
- Department of Urology, Ospedale Regionale di Lugano, Civico USI - Università della Svizzera Italiana, Lugano, Ticino, Switzerland
| | - Giovanni Farinea
- Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Rosario Francesco Di Stefano
- Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Mariangela Calabrese
- Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Isabella Saporita
- Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Veronica Crespi
- Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Stefano Poletto
- Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Erica Palesandro
- Department of Medical Oncology, Cardinal Massaia Hospital, Asti, Piedmont, Italy
| | - Massimo Di Maio
- Department of Oncology, Division of Medical Oncology, Ordine Mauriziano Hospital, University of Turin, Turin, Piedmont, Italy
| | - Giorgio Vittorio Scagliotti
- Department of Oncology, University of Turin, at Division of Medical Oncology, San Luigi Gonzaga Hospital, Orbassano, Turin, Piedmont, Italy
| | - Marcello Tucci
- Department of Medical Oncology, Cardinal Massaia Hospital, Asti, Piedmont, Italy.
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ESTRO-ACROP recommendations for evidence-based use of androgen deprivation therapy in combination with external-beam radiotherapy in prostate cancer. Radiother Oncol 2023; 183:109544. [PMID: 36813168 DOI: 10.1016/j.radonc.2023.109544] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/03/2023] [Accepted: 02/04/2023] [Indexed: 02/22/2023]
Abstract
BACKGROUND AND PURPOSE There is no consensus concerning the appropriate use of androgen deprivation therapy (ADT) during primary and postoperative external-beam radiotherapy (EBRT) in the management of prostate cancer (PCa). Thus, the European Society for Radiotherapy and Oncology (ESTRO) Advisory Committee for Radiation Oncology Practice (ACROP) guidelines seeks to present current recommendations for the clinical use of ADT in the various indications of EBRT. MATERIAL AND METHODS A literature search was conducted in MEDLINE PubMed that evaluated EBRT and ADT in prostate cancer. The search focused on randomized, Phase II and III trials published in English from January 2000 to May 2022. In case topics were addressed in the absence of Phase II or III trials, recommendations were labelled accordingly based on the limited body of evidence. Localized PCa was classified according to D'Amico et al. classification in low-, intermediate and high risk PCa. The ACROP clinical committee identified 13 European experts who discussed and analyzed the body of evidence concerning the use of ADT with EBRT for prostate cancer. RESULTS Key issues were identified and are discussed: It was concluded that no additional ADT is recommended for low-risk prostate cancer patients, whereas for intermediate- and high-risk patients four to six months and two to three years of ADT are recommended. Likewise, patients with locally advanced prostate cancer are recommended to receive ADT for two to three years and when ≥ 2 high-risk factors (cT3-4, ISUP grade ≥ 4 or PSA ≥ 40 ng/ml) or cN1 is present ADT for three years plus additional Abiraterone for two years is recommended. For postoperative patients no ADT is recommended for adjuvant EBRT in pN0 patients whereas for pN1 patients adjuvant EBRT with long-term ADT is performed for at least 24 to 36 months. In the setting of salvage EBRT ADT is performed in biochemically persistent PCa patients with no evidence of metastatic disease. Long-term ADT (24 months) is recommended in pN0 patients with high risk of further progression (PSA ≥ 0.7 ng/ml and ISUP grade group ≥ 4) and a life expectancy of over ten years, whereas short-term ADT (6 months) is recommended in pN0 patients with lower risk profile (PSA < 0.7 ng/ml and ISUP grade group 4). Patients considered for ultra-hypofractionated EBRT as well as patients with image based local recurrence within the prostatic fossa or lymph node recurrence should participate in appropriate clinical trials evaluating the role of additional ADT. CONCLUSION These ESTRO-ACROP recommendations are evidence-based and relevant to the use of ADT in combination with EBRT in PCa for the most common clinical settings.
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Lim Joon D, Berry C, Harris B, Tacey M, Smith D, Lawrentschuk N, Schneider ME, Fraser O, Hall M, Chao M, Foroudi F, Jenkins T, Angus D, Wada M, Sengupta S, Khoo V. A clinical study comparing polymer and gold fiducials for prostate cancer radiotherapy. Front Oncol 2023; 12:1023288. [PMID: 36818674 PMCID: PMC9930895 DOI: 10.3389/fonc.2022.1023288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 12/30/2022] [Indexed: 02/04/2023] Open
Abstract
Introduction Image guidance with gold fiducials improves outcomes of prostate radiotherapy. However, gold produces artefact on CT imaging, interfering with contouring and verification. The purpose of this study was to compare polymer to standard gold fiducials using radiotherapy imaging modalities to assess the visibility and artefact. Methods Twenty eight patients with locally advanced prostate cancer were enrolled, half had three polymer fiducials implanted into the prostate and half underwent insertion of gold fiducials. Patients were imaged with CT, T2 weighted MRI, cone-beam CT (CBCT) and planar KV images. Fiducials were scored for visibility and assessed for CT artefact in surrounding prostate tissue. The artefact was quantified from Hounsfield number histograms and separated into percentile ranges and proportion of voxels in HU normal tissue range of a 2cm sphere surrounding the fiducial. Results Gold and polymer fiducials were sufficiently visible for CT and CBCT verification. The gold fiducials could be visualized well on KV planar imaging; however, the polymer markers were obscured by pelvic bones. Neither polymer nor gold fiducials could be visualized on MRI. The polymer fiducial produced less artefact than gold on CT, having less voxel spread for the HU percentile ranges and a greater proportion of voxels in the normal tissue range. Conclusions Polymer fiducials are a more suitable fiducial than gold for CT/CBCT in prostate cancer radiotherapy, demonstrating minimal artefact and good visibility on CT. However, they were not well seen on MRI or KV imaging and thus not suitable for co-registration or planar KV verification.
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Affiliation(s)
- Daryl Lim Joon
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia,*Correspondence: Daryl Lim Joon,
| | - Colleen Berry
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Benjamin Harris
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Mark Tacey
- Office of Research, The Northern Hospital, Epping, VIC, Australia,Melbourne School of Population and Global Health, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Carlton, VIC, Australia
| | - Drew Smith
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | | | | | - Olivia Fraser
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Megan Hall
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Michael Chao
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Farshad Foroudi
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Trish Jenkins
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - David Angus
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Morikatsu Wada
- Radiation Oncology Department, Olivia Newton-John Cancer Centre, Heidelberg, VIC, Australia
| | - Shomik Sengupta
- Austin Health, University of Melbourne, Melbourne, VIC, Australia,*Correspondence: Daryl Lim Joon,
| | - Vincent Khoo
- Department of Clinical Oncology, Royal Marsden Hospital, London, United Kingdom,*Correspondence: Daryl Lim Joon,
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Ayoub Z, Khader J, Bulbul M, Khauli RB, Andraos TY, Shamseddine A, Mukherji D, Geara FB. Adjusting the duration of androgen deprivation therapy (ADT) based on nadir PSA for high risk localized prostate cancer patients treated with definitive external beam radiation therapy and ADT. BMC Urol 2022; 22:204. [PMID: 36503556 PMCID: PMC9743609 DOI: 10.1186/s12894-022-01145-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 11/08/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND A nadir Prostate-Specific Antigen (nPSA) of 0.06 ng/mL has been shown to be a strong independent predictor of biochemical recurrence-free survival (bRFS) in patients with intermediate or high-risk (HR) prostate cancer treated with definitive external beam radiation therapy (RT) and androgen deprivation therapy (ADT). We aimed to examine the association between the duration of ADT and bRFS in HR localized prostate cancer, based on nPSA. METHODS Between 1998 and 2015, 204 patients with HR localized prostate cancer were identified. Of them, 157 patients (77.0%) reached the desired nPSA of < 0.06 ng/mL (favorable group), while 47 (23.0%) did not (unfavorable group). Duration of ADT varied among patients depending on physician preference, patient tolerance, and/or compliance. Survival outcomes were calculated using Kaplan-Meier methods and predictors of outcomes using multi-variable cox regression model. RESULTS In the favorable group, ADT for at least 12 months lead to superior bRFS compared to ≤ 9 months of ADT (P = 0.036). However, no significant difference was seen when examining the value of receiving ADT beyond 12, 18, or 24 months, respectively. On univariate analysis for bRFS, the use of ADT for at least 12 months was significant (P = 0.012) as well as time to nadir PSA (tnPSA), (≤ 6 vs > 6 months); (P = 0.043). The presenting T stage was borderline significant (HR 3.074; 95% CI 0.972-9.719; P = 0.056), while PSA at presentation, Gleason Score and age were not. On multivariate analysis, the use of ADT for 12 months (P = 0.012) and tnPSA (P = 0.037) remained significant. In the unfavorable group, receiving ADT beyond 9 and 12 months was associated with improved bRFS (P = 0.044 and 0.019, respectively). However, beyond 18 months, there was no significant difference. CONCLUSION In HR localized prostate cancer patients treated with definitive RT and ADT, the total duration of ADT may be adjusted according to treatment response using nPSA. In patients reaching a nPSA below 0.06 ng/mL, a total of 12 months of ADT may be sufficient, while in those not reaching a nPSA below 0.06 ng/mL, a total duration of 18 months is required.
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Affiliation(s)
- Zeina Ayoub
- grid.411654.30000 0004 0581 3406Department of Radiation Oncology, The Naef K. Basile Cancer Institute, The American University of Beirut Medical Center, Bliss Street, Riad El Solh, Beirut, 11072030 Lebanon
| | - Jamal Khader
- Department of Radiation Oncology, King Hussein Cancer Center, Amman, Jordan
| | - Muhammad Bulbul
- grid.411654.30000 0004 0581 3406Division of Urology, The American University of Beirut Medical Center, Beirut, Lebanon
| | - Raja B. Khauli
- grid.411654.30000 0004 0581 3406Division of Urology, The American University of Beirut Medical Center, Beirut, Lebanon
| | - Therese Y. Andraos
- grid.411654.30000 0004 0581 3406Department of Radiation Oncology, The Naef K. Basile Cancer Institute, The American University of Beirut Medical Center, Bliss Street, Riad El Solh, Beirut, 11072030 Lebanon
| | - Ali Shamseddine
- grid.411654.30000 0004 0581 3406Division of Medical Oncology, The Naef K. Basile Cancer Institute at the American University of Beirut Medical Center, Beirut, Lebanon
| | - Deborah Mukherji
- grid.411654.30000 0004 0581 3406Division of Medical Oncology, The Naef K. Basile Cancer Institute at the American University of Beirut Medical Center, Beirut, Lebanon
| | - Fady B. Geara
- grid.411654.30000 0004 0581 3406Department of Radiation Oncology, The Naef K. Basile Cancer Institute, The American University of Beirut Medical Center, Bliss Street, Riad El Solh, Beirut, 11072030 Lebanon ,Present Address: Oncology Institute Cleveland Clinic Abu Dhabi, Al Maryah Island, Abu Dhabi, United Arab Emirates
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Advancements in the radiooncological treatment of high-risk prostate cancer: a quarter century of achievements. Radiol Oncol 2022; 56:365-370. [PMID: 35502906 PMCID: PMC9400444 DOI: 10.2478/raon-2022-0018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/28/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND The aim of the study was to evaluate the development of treatment of primary high-risk prostate cancer in regards to biochemical no evidence of disease (bNED), acute and late gastrointestinal (GI) and genitourinary (GU) side effects. PATIENTS AND METHODS Primary high-risk prostate cancer patients treated between 1994 and 2016 were included. Applied doses ranged from 60 to 80 Gy, with a dose of 1.8 or 2 Gy per fraction. Techniques were either 3D conformal or intensity modulated radiotherapy and volumetric intensity modulated arc therapy. RESULTS 142 patients were treated with doses up to 70 Gy (median dose 66 Gy; 66 Gy group), 282 with doses between 70 and 76 Gy (median dose 74 Gy; 74 Gy group), and 141 with doses >76 Gy (median dose 78 Gy; 78 Gy group). The median follow-up was 48 months. The bNED rates were 50% after 5 years and 44% after 9 years in the 66 Gy group; 65% and 54%, respectively, in the 74 Gy group; and 83% and 66%, respectively, in the 78 Gy group (p = 0.03 vs. 74 Gy and p < 0.0001 vs. 66 Gy). We found a higher rate of acute GI side effects in the 78 Gy group compared to the other groups, but not in maximum acute GU side effects and late maximum GI and GU effects. CONCLUSIONS High-risk prostate cancer patients treated with doses of 78 Gy had significantly better bNED rates. Compared to the historical 66 Gy group, 50% more patients achieved bNED after a follow-up of 9 years.
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George DJ, Dearnaley DP. Relugolix, an oral gonadotropin-releasing hormone antagonist for the treatment of prostate cancer. Future Oncol 2021; 17:4431-4446. [PMID: 34409852 DOI: 10.2217/fon-2021-0575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Androgen deprivation therapy using gonadotropin-releasing hormone (GnRH) analogues is standard treatment for intermediate and advanced prostate cancer. GnRH agonist therapy results in an initial testosterone flare, and increased metabolic and cardiovascular risks. The GnRH antagonist relugolix is able to reduce serum testosterone levels in men with prostate cancer without inducing testosterone flare. In the HERO Phase III trial, relugolix was superior to leuprolide acetate at rapidly reducing testosterone and continuously suppressing testosterone, with faster post-treatment recovery of testosterone levels. Relugolix was associated with a 54% lower incidence of major adverse cardiovascular events than leuprolide acetate. As the first oral GnRH antagonist approved for the treatment of advanced prostate cancer, relugolix offers a new treatment option.
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Affiliation(s)
- Daniel J George
- Department of Medicine & Surgery, Duke Cancer Institute, Duke University, Durham, NC 27710, USA
| | - David P Dearnaley
- The Institute of Cancer Research & Royal Marsden NHS Foundation Trust, London, UK
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Zapatero A, Maldonado Pijoan X, Gómez-Caamaño A, Pardo Masferrer J, Macías Hernández V, Hervás Morón A, Muñoz García JL, Palacios Eito A, Anguita-Alonso P, González-Junco C, López Torrecilla J. Health-related quality of life in men with localized prostate cancer treated with radiotherapy: validation of an abbreviated version of the Expanded Prostate Cancer Index Composite for Clinical Practice in Spain. Health Qual Life Outcomes 2021; 19:223. [PMID: 34563208 PMCID: PMC8466718 DOI: 10.1186/s12955-021-01856-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 08/29/2021] [Indexed: 12/03/2022] Open
Abstract
Background Health-related quality of life (HRQoL) is greatly affected by prostate cancer (PCa) and associated treatments. This study aimed to measure the impact of radiotherapy on HRQoL and to further validate the Spanish version of the 16-item Expanded Prostate Cancer Index Composite (EPIC-16) in routine clinical practice. Methods An observational, non-interventional, multicenter study was conducted in Spain with localized PCa patients initiating treatment with external beam radiotherapy (EBRT) or brachytherapy (BQT). Changes from baseline in EPIC-16, University of California-Los Angeles Prostate Cancer Index (UCLA-PCI), and patient-perceived health status were longitudinally assessed at end of radiotherapy (V2) and 90 days thereafter (V3). Psychometric evaluations of the Spanish EPIC-16 were conducted. Results Of 516 patients enrolled, 495 were included in the analysis (EBRT, n = 361; BQT, n = 134). At baseline, mean (standard deviation [SD]) EPIC-16 global scores were 11.9 (7.5) and 10.3 (7.7) for EBRT and BQT patients, respectively; scores increased, i.e., HRQoL worsened, from baseline, by mean (SD) of 6.8 (7.6) at V2 and 2.4 (7.4) at V3 for EBRT and 4.2 (7.6) and 3.9 (8.2) for BQT patients. Changes in Spanish EPIC-16 domains correlated well with urinary, bowel, and sexual UCLA-PCI domains. EPIC-16 showed good internal consistency (Cronbach’s alpha = .84), reliability, and construct validity. Conclusion The Spanish EPIC-16 questionnaire demonstrated sensitivity, strong discriminative properties and reliability, and validity for use in clinical practice. EPIC-16 scores worsened after radiotherapy in different HRQoL domains; however, a strong tendency towards recovery was seen at the 3-month follow-up visit. Supplementary Information The online version contains supplementary material available at 10.1186/s12955-021-01856-z.
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Affiliation(s)
- Almudena Zapatero
- Department of Radiation Oncology, Hospital Universitario de La Princesa, Madrid, Spain.
| | | | - Antonio Gómez-Caamaño
- Department of Radiation Oncology, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - José Pardo Masferrer
- Department of Radiation Oncology, Hospital Universitari Son Espases, Palma de Mallorca, Spain
| | | | | | | | - Amalia Palacios Eito
- Department of Radiation Oncology, Hospital Universitario Reina Sofía, Córdoba, Spain
| | | | | | - José López Torrecilla
- Department of Radiation Oncology, ERESA, Hospital General Universitario de València, València, Spain
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Sandhu S, Moore CM, Chiong E, Beltran H, Bristow RG, Williams SG. Prostate cancer. Lancet 2021; 398:1075-1090. [PMID: 34370973 DOI: 10.1016/s0140-6736(21)00950-8] [Citation(s) in RCA: 239] [Impact Index Per Article: 79.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/16/2021] [Accepted: 04/20/2021] [Indexed: 12/12/2022]
Abstract
The management of prostate cancer continues to evolve rapidly, with substantial advances being made in understanding the genomic landscape and biology underpinning both primary and metastatic prostate cancer. Similarly, the emergence of more sensitive imaging methods has improved diagnostic and staging accuracy and refined surveillance strategies. These advances have introduced personalised therapeutics to clinical practice, with treatments targeting genomic alterations in DNA repair pathways now clinically validated. An important shift in the therapeutic framework for metastatic disease has taken place, with metastatic-directed therapies being evaluated for oligometastatic disease, aggressive management of the primary lesion shown to benefit patients with low-volume metastatic disease, and with several novel androgen pathway inhibitors significantly improving survival when used as a first-line therapy for metastatic disease. Research into the molecular characterisation of localised, recurrent, and progressive disease will undoubtedly have an impact on clinical management. Similarly, emerging research into novel therapeutics, such as targeted radioisotopes and immunotherapy, holds much promise for improving the lives of patients with prostate cancer.
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Affiliation(s)
- Shahneen Sandhu
- Division of Cancer Medicine, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | | | - Edmund Chiong
- Department of Urology and Department of Surgery, National University of Singapore, Singapore
| | | | - Robert G Bristow
- Manchester Cancer Research Centre and University of Manchester, Manchester, UK
| | - Scott G Williams
- Division of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia.
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Dearnaley DP, Saltzstein DR, Sylvester JE, Karsh L, Mehlhaff BA, Pieczonka C, Bailen JL, Shi H, Ye Z, Faessel HM, Lin H, Zhu Y, Saad F, MacLean DB, Shore ND. The Oral Gonadotropin-releasing Hormone Receptor Antagonist Relugolix as Neoadjuvant/Adjuvant Androgen Deprivation Therapy to External Beam Radiotherapy in Patients with Localised Intermediate-risk Prostate Cancer: A Randomised, Open-label, Parallel-group Phase 2 Trial. Eur Urol 2020; 78:184-192. [PMID: 32273183 DOI: 10.1016/j.eururo.2020.03.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 03/02/2020] [Indexed: 01/27/2023]
Abstract
BACKGROUND External beam radiotherapy (EBRT) with neoadjuvant/adjuvant androgen deprivation therapy (ADT) is an established treatment option to prolong survival for patients with intermediate- and high-risk prostate cancer (PCa). Relugolix, an oral gonadotropin-releasing hormone (GnRH) receptor antagonist, was evaluated in this clinical setting in comparison with degarelix, an injectable GnRH antagonist. OBJECTIVE To evaluate the safety and efficacy of relugolix to achieve and maintain castration. DESIGN, SETTING, AND PARTICIPANTS A phase 2 open-label study was conducted in 103 intermediate-risk PCa patients undergoing primary EBRT and neoadjuvant/adjuvant ADT between June 2014 and December 2015. INTERVENTION Patients randomly assigned (3:2) to 24-wk treatment with either daily oral relugolix or 4-wk subcutaneous depot degarelix (reference control). OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary endpoint was the rate of effective castration (testosterone <1.73nmol/l) in relugolix patients between 4 and 24 wk of treatment. Secondary endpoints included rate of profound castration (testosterone <0.7nmol/l), prostate-specific antigen (PSA) levels, prostate volume, quality of life (QoL) assessed using the Aging Males' Symptoms scale, and the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life (30-item EORTC core questionnaire [EORTC QLQ-C30] and 25-item EORTC prostate cancer module [EORTC QLQ-PR25]) questionnaires, and safety. No formal statistical comparisons with degarelix were planned. RESULTS AND LIMITATIONS Castration rates during treatment were 95% and 82% with relugolix and 89% and 68% with degarelix for 1.73 and 0.7nmol/l thresholds, respectively. Median time to castration in the relugolix arm was 4 d. During treatment, PSA levels and prostate volumes were reduced in both groups. Three months after discontinuing treatment, 52% of men on relugolix and 16% on degarelix experienced testosterone recovery (statistical significance of differences not tested). Mean and median QoL scores improved following treatment discontinuation. The most common adverse event was hot flush (relugolix 57%; degarelix 61%). Lack of blinding was a potential limitation. CONCLUSIONS Relugolix achieved testosterone suppression to castrate levels within days and maintained it over 24 wk with a safety profile consistent with its mechanism of action. PATIENT SUMMARY Oral once-daily relugolix may be a novel oral alternative to injectable androgen deprivation therapies.
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Affiliation(s)
- David P Dearnaley
- The Institute of Cancer Research and Royal Marsden Hospital, London, UK.
| | | | | | | | | | | | | | | | - Zhan Ye
- Millennium Pharmaceuticals, Inc., Cambridge, MA, USA(†)
| | | | - Huamao Lin
- Millennium Pharmaceuticals, Inc., Cambridge, MA, USA(†)
| | - Yanyan Zhu
- Millennium Pharmaceuticals, Inc., Cambridge, MA, USA(†)
| | - Fred Saad
- University of Montreal Hospital Center, Montreal, QC, Canada
| | | | - Neal D Shore
- Carolina Urologic Research Center, Myrtle Beach, SC, USA
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Caumont F, Conti G, Hurwitz LM, Kuo C, Levie KE, Badiozamani K, Frankel JK, Flores JP, Brand TC, Chaurasia A, Rosner IL, Stroup SP, Musser JE, Cullen J, Porter CR. A prospective analysis of health-related quality of life in intermediate and high-risk prostate cancer patients managed with intensity modulated radiation therapy, with vs. without hormonal therapy. Urol Oncol 2020; 38:794.e1-794.e9. [PMID: 32139288 DOI: 10.1016/j.urolonc.2020.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/21/2020] [Accepted: 02/05/2020] [Indexed: 10/24/2022]
Abstract
INTRODUCTION Combined radiotherapy and hormonal treatment are recommended for intermediate- and high-risk prostate cancer (CaP). This study compared the long-term effects on health-related quality of life (HRQoL) of intermediate- and high-risk CaP patients managed with radiation therapy (RT) with vs. without hormone therapy (HT). METHODS Patients with intermediate- and high-risk CaP enrolled in the Center for Prostate Disease Research diagnosed from 2007 to 2017 were included. EPIC and SF-36 questionnaires were completed and HRQoL scores were compared for patients receiving RT vs. RT + HT at baseline (pretreatment), 6, 12, 24, 36, 48, and 60 months after CaP diagnosis. Longitudinal patterns of change in HRQoL were modeled using linear regression models, adjusting for baseline HRQoL, age at CaP diagnosis, race, comorbidities, National Comprehensive Cancer Network (NCCN) risk stratum, time to treatment, and follow-up time. RESULTS Of 164 patients, 93 (56.7%) received RT alone and 71 (43.3%) received RT + HT. Both groups reported comparable baseline HRQoL. Patients receiving RT+HT were more likely to be NCCN high risk as compared to those receiving only RT. The RT + HT patients experienced worse sexual function, hormonal function, and hormonal bother than those who only received RT; however, HRQoL recovered over time for the RT + HT group. No significant differences were observed between groups in urinary and bowel domains or SF-36 mental and physical scores. CONCLUSION Combined RT + HT treatment was associated with temporary lower scores in sexual and hormonal HRQoL compared with RT only. Intermediate- and high-risk CaP patients should be counseled about the possible declines in HRQoL associated with HT.
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Affiliation(s)
| | - Galen Conti
- Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD; Henry M. Jackson Foundation, Bethesda, MD
| | - Lauren M Hurwitz
- Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD; Henry M. Jackson Foundation, Bethesda, MD
| | - Claire Kuo
- Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD; Henry M. Jackson Foundation, Bethesda, MD
| | - Katherine E Levie
- Virginia Mason Medical Center, Seattle, WA; Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Henry M. Jackson Foundation, Bethesda, MD
| | | | | | | | - Timothy C Brand
- Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Madigan Army Medical Center, Tacoma, WA
| | - Avinash Chaurasia
- Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - Inger L Rosner
- Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - Sean P Stroup
- Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Naval Medical Center, San Diego, CA
| | - John E Musser
- Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Tripler Army Medical Center, Honolulu, HI
| | - Jennifer Cullen
- Department of Defense, Center for Prostate Disease Research, Bethesda, MD; Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD; Henry M. Jackson Foundation, Bethesda, MD.
| | - Christopher R Porter
- Virginia Mason Medical Center, Seattle, WA; Department of Defense, Center for Prostate Disease Research, Bethesda, MD
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11
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Ghashghaei M, Kucharczyk M, Elakshar S, Muanza T, Niazi T. Combining prostate cancer radiotherapy with therapies targeting the androgen receptor axis. Curr Oncol 2019; 26:e640-e650. [PMID: 31708657 PMCID: PMC6821115 DOI: 10.3747/co.26.5005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Background Prostate cancer (pca) is the most common non-dermatologic cancer and the 3rd leading cause of male cancer mortality in Canada. In patients with high-risk localized or recurrent pca, management typically includes the combination of long-term androgen deprivation therapy (adt) and radiotherapy (rt). New androgen-receptor-axis targeted therapies (arats), which await validation, offer an option to intensify therapy. Methods In this narrative review, we report the relevant history that has supported combining adt with rt. The literature in PubMed was searched for studies involving pca and novel arats (abiraterone acetate, enzalutamide, apalutamide, darolutamide) published between 1995 and 2019. Literature discussing clinical trials in which those modalities were combined was extracted and synthesized into a combined molecular and clinical discussion. Potential treatment intensification mechanisms and rationales are explored. Results Early results from three phase i/ii trials demonstrated that concurrent abiraterone acetate, adt, and rt is safe, improves the extent of chemical castration, and is associated with limited treatment failures. A single in vitro study implies synergy for radiosensitization beyond that facilitated by conventional adt. Studies investigating the combination of other arats with rt are under way, including multiple phase iii trials, but short-term results are not yet available.
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Affiliation(s)
- M Ghashghaei
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis Jewish General Hospital, Montreal, QC
- Division of Experimental Medicine, McGill University, Montreal, QC
| | - M Kucharczyk
- Department of Radiation Oncology, Sir Mortimer B. Davis Jewish General Hospital, Montreal, QC
| | - S Elakshar
- Department of Radiation Oncology, Sir Mortimer B. Davis Jewish General Hospital, Montreal, QC
| | - T Muanza
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis Jewish General Hospital, Montreal, QC
- Division of Experimental Medicine, McGill University, Montreal, QC
- Department of Radiation Oncology, Sir Mortimer B. Davis Jewish General Hospital, Montreal, QC
| | - T Niazi
- Lady Davis Institute for Medical Research, Sir Mortimer B. Davis Jewish General Hospital, Montreal, QC
- Department of Radiation Oncology, Sir Mortimer B. Davis Jewish General Hospital, Montreal, QC
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12
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Tomita N, Soga N, Ogura Y, Furusawa J, Tanaka H, Koide Y, Tachibana H, Kodira T. Favorable 10-year outcomes of image-guided intensity-modulated radiotherapy combined with long-term androgen deprivation for Japanese patients with nonmetastatic prostate cancer. Asia Pac J Clin Oncol 2018; 15:18-25. [DOI: 10.1111/ajco.13097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 09/29/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Natsuo Tomita
- Department of Radiation Oncology; Aichi Cancer Center Hospital; Nagoya Japan
| | - Norihito Soga
- Department of Urology; Aichi Cancer Center Hospital; Nagoya Japan
| | - Yuji Ogura
- Department of Urology; Aichi Cancer Center Hospital; Nagoya Japan
| | - Jun Furusawa
- Department of Urology; Aichi Cancer Center Hospital; Nagoya Japan
| | - Hiroshi Tanaka
- Department of Radiation Oncology; Aichi Cancer Center Hospital; Nagoya Japan
| | - Yutaro Koide
- Department of Radiation Oncology; Aichi Cancer Center Hospital; Nagoya Japan
| | - Hiroyuki Tachibana
- Department of Radiation Oncology; Aichi Cancer Center Hospital; Nagoya Japan
| | - Takeshi Kodira
- Department of Radiation Oncology; Aichi Cancer Center Hospital; Nagoya Japan
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13
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Xue J, Wang Y, Zheng Y, Zhang J, Qi F, Cheng H, Si S, Li R, Li X, Qin Z, Yu B, Zou Q. Efficacy characteristics of different therapeutic modalities for locally advanced prostate cancer: a Bayesian network meta-analysis of randomized controlled trials. ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:358. [PMID: 30370285 DOI: 10.21037/atm.2018.08.38] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Though previous studies have investigated the efficacy characteristics of several different therapeutic modalities for locally advanced prostate cancer (LAPCa) patients, the available results remained unestablished. Therefore, the aim of this meta-analysis was conducted to clarify such differences. Methods The online PubMed, EMBASE and Web of Science were comprehensively searched for relevant studies published before September 1st, 2017, and eventually eleven relevant studies met the inclusion criteria. The hazard odds ratios (HRs) with 95% credible interval (CI) were utilized to evaluate the efficacy characteristics of several different therapeutic modalities for LAPCa patients by Markov chain Monte Carlo methods. Results Five different therapeutic modalities were ultimately enrolled to shed light on the efficacy characteristics for LAPCa patients and seven different clinical outcomes were finally analyzed in this study. The cumulative rank probability of overall survival (OS) or cancer-specific survival (CSS) from best to worst was radiotherapy (RT) + orchiectomy, RT + long-term androgen deprivation therapy (LTADT), RT + short-term androgen deprivation therapy (STADT), LTADT and RT; RT + LTADT, RT + orchiectomy, RT + STADT, LTADT and RT, respectively. Meanwhile, in the terms of progression-free survival (PFS), biochemical failure rate (BFR), disease-free survival (DFS), local progression rate (LPR) and metastasis rate (MR), RT + LTADT as well as RT + STADT had a higher, whereas RT alone or LTADT had a relatively lower treatment effect. Conclusions All in all, our results indicated that RT + LTADT or RT + orchiectomy was among the best two therapeutic regimens in the prognostic aspects of the patients with LAPCa. Furthermore, in consideration of reducing invasive treatment of eligible patients, RT + LTADT could yield better survival benefit of LAPCa patients, compared with others. In addition, the results of our analysis might provide a reference in the clinical selection. Larger sample sizes of strictly designed randomised controlled trials (RCTs) were wanted to validate our findings.
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Affiliation(s)
- Jianxin Xue
- Department of Urology, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing 210003, China.,Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yi Wang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yuxiao Zheng
- Department of Urologic Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Nanjing Medical University Affiliated Cancer Hospital, Nanjing 210009, China
| | - Jianzhong Zhang
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Feng Qi
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Hong Cheng
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Shuhui Si
- Research Division of Clinical Pharmacology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Ran Li
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xiao Li
- Department of Urologic Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Nanjing Medical University Affiliated Cancer Hospital, Nanjing 210009, China
| | - Zhiqiang Qin
- Department of Urology and Transplantation, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Bin Yu
- Department of Urologic Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Nanjing Medical University Affiliated Cancer Hospital, Nanjing 210009, China
| | - Qing Zou
- Department of Urologic Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Nanjing Medical University Affiliated Cancer Hospital, Nanjing 210009, China
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14
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Barra S, Belgioia L, Marcenaro M, Callegari S, Pastorino A, Trapani L, Cavagnetto F, Garelli S, Corvò R. Moderate hypofractionated radiotherapy after prostatectomy for cancer patients: toxicity and clinical outcome. Cancer Manag Res 2018; 10:473-480. [PMID: 29559810 PMCID: PMC5856046 DOI: 10.2147/cmar.s146131] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Background After radical prostatectomy (RP) radiotherapy (RT) plays a role, both as adjuvant
or salvage treatment. If negative features are present such as extracapsular
extension, seminal vesicle invasion, lymph invasion, and positive surgical
margins, RT after RP reduces the risk of recurrence, although it is associated
with an increased risk of acute and late toxicities. An intensified RT delivered
in a shortened time could improve clinical outcome and be safely combined with
hormonal therapy (HT). The aim of this study was to determine the acute and late
toxicities associated with hypofractionated RT and to assess the impact of the
addition of HT to RT in high-risk prostate cancer (PC) patients on overall
response and toxicity. Materials and methods Sixty-four PC patients undergoing RP were included in this retrospective study.
All patients were recommended to receive adjuvant or salvage RT. Prescription
doses were 62.5 Gy in 25 fractions to prostate bed, 56.25 Gy in 25 fractions to
seminal vesicles bed, and 50 Gy in 25 fractions to pelvis if indicated. HT was
administered to patients with additional adverse pathologic features including
Gleason score >7, prostate-specific antigen >20 ng/mL before
surgery, or prostate-specific antigen with rapid doubling time after relapse or
nodal involvement. After completion of RT, patients were observed after 4 weeks,
and then followed-up every 3–6 months. Acute and late toxicities were
assessed using Common Terminology Criteria for Adverse Events v4 and Radiation
Therapy Oncology Group scale, respectively. Results For acute toxicity, only grade 1 gastrointestinal and genitourinary toxicities
were detected in 17% and 11% of patients, respectively. As regards late toxicity,
only 5% of the patients developed grade 1 gastrointestinal adverse event; grade 1,
grade 2, and grade 3 genitourinary toxicity was recorded in 5%, 3.3%, and 3.3% of
patients, respectively. Two and 5 years overall survival were 98% and 96%,
respectively. The curves stratified for treatment show a slight difference between
patients receiving RT or RT+HT, but the differences did not reach statistical
significance (p=0.133). Conclusion In patients with PC undergoing RP, hypofractionated RT may contribute to achieve a
high overall survival with an acceptable toxicity profile. Combination of RT and
HT is also well tolerated and efficacious.
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Affiliation(s)
- Salvina Barra
- Radiation Oncology Department, Ospedale Policlinico San Martino, Genoa, Italy
| | - Liliana Belgioia
- Radiation Oncology Department, Ospedale Policlinico San Martino, Genoa, Italy.,Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Michela Marcenaro
- Radiation Oncology Department, Ospedale Policlinico San Martino, Genoa, Italy
| | - Serena Callegari
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Alice Pastorino
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Luca Trapani
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | | | - Stefania Garelli
- Medical Physics Department, Ospedale Policlinico San Martino, Genoa, Italy
| | - Renzo Corvò
- Radiation Oncology Department, Ospedale Policlinico San Martino, Genoa, Italy.,Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
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15
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Tomita N, Soga N, Ogura Y, Furusawa J, Shimizu H, Adachi S, Tanaka H, Kato D, Koide Y, Makita C, Tachibana H, Kodaira T. Effects of dose-escalated radiotherapy in combination with long-term androgen deprivation on prostate cancer. Br J Radiol 2017; 91:20170431. [PMID: 29166142 DOI: 10.1259/bjr.20170431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE We aimed to examine the effects of a dose escalation for prostate cancer patients receiving long-term androgen deprivation therapy (ADT). METHODS A retrospective analysis of 605 patients treated with radiotherapy (RT) and long-term ADT (National Comprehensive Cancer Network criteria-defined intermediate-risk, minimum 10 months; high-risk and very-high-risk, minimum 20 months) was performed. The median ADT time was 31 months. Cox's proportional hazards models were used to compare biochemical disease-free survival (bDFS), clinical relapse-free survival (cRFS) and overall survival (OS) between the ≥70, <78 Gy group and 78 Gy group in a univariate analysis and to assess the effects of the dose escalation on bDFS in a multivariate analysis. RESULTS After a median follow-up of 70 months, 5-year bDFS was significantly better in the 78 Gy group than in the ≥70, <78 Gy group [96 vs 83%; hazard ratio 3.6 (95% confidence interval 2.2-6.1); p < 0.001]. 5-year cRFS and OS were similar between the two groups. The multivariate analysis showed that RT dose was still an independent prognostic factor of bDFS (p = 0.005). CONCLUSION The results of the present study suggest that dose escalations result in significant improvements in bDFS, even when used in combination with long-term ADT. A longer follow-up is needed to clarify the effects of dose escalations on cRFS and OS. Advances in knowledge: It remains unclear whether high-dose RT is necessary for improving the outcomes of patients receiving long-term ADT. The results suggest that dose escalations result in significant improvements in biochemical control.
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Affiliation(s)
- Natsuo Tomita
- 1 Department of Radiation Oncology , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Norihito Soga
- 2 Department of Urology,Aichi Cancer Center Hospital , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Yuji Ogura
- 2 Department of Urology,Aichi Cancer Center Hospital , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Jun Furusawa
- 2 Department of Urology,Aichi Cancer Center Hospital , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Hidetoshi Shimizu
- 1 Department of Radiation Oncology , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Sou Adachi
- 1 Department of Radiation Oncology , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Hiroshi Tanaka
- 1 Department of Radiation Oncology , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Daiki Kato
- 1 Department of Radiation Oncology , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Yutaro Koide
- 1 Department of Radiation Oncology , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Chiyoko Makita
- 1 Department of Radiation Oncology , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Hiroyuki Tachibana
- 1 Department of Radiation Oncology , Aichi Cancer Center Hospital , Nagoya , Japan
| | - Takeshi Kodaira
- 1 Department of Radiation Oncology , Aichi Cancer Center Hospital , Nagoya , Japan
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16
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Hennequin C, Fumagalli I, Martin V, Quero L. [Combination of radiotherapy and androgen deprivation therapy for localized prostate cancer]. Cancer Radiother 2017; 21:462-468. [PMID: 28870416 DOI: 10.1016/j.canrad.2017.07.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 07/02/2017] [Indexed: 10/18/2022]
Abstract
Combination of radiotherapy and androgen deprivation is now considered as the standard of care for patients with a localized prostate cancer but poor prognosis factors. Two groups of randomized trials have led to this recommendation: some have compared radiotherapy alone versus hormonal treatment and radiotherapy: these trials demonstrated, now with a long follow-up, an improvement in 10-year survival for the combined treatment. Three recent trials compared androgen deprivation alone or combined with radiotherapy; a benefit in survival was also demonstrated in favour of the combination. Some questions remained concerning the optimal duration of hormonal treatment, in view of its potential side effects. Patients in the intermediate prognostic groups could receive a short-term androgen deprivation, but those with a high Gleason score must be treated with a long-term hormonal treatment. Modalities of radiotherapy, regarding volumes and dose must also be précised in the next years.
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Affiliation(s)
- C Hennequin
- Service de cancérologie-radiothérapie, hôpital Saint-Louis, 1, avenue Claude-Vellefaux, 75475 Paris, France.
| | - I Fumagalli
- Service de cancérologie-radiothérapie, hôpital Saint-Louis, 1, avenue Claude-Vellefaux, 75475 Paris, France
| | - V Martin
- Service de cancérologie-radiothérapie, hôpital Saint-Louis, 1, avenue Claude-Vellefaux, 75475 Paris, France
| | - L Quero
- Service de cancérologie-radiothérapie, hôpital Saint-Louis, 1, avenue Claude-Vellefaux, 75475 Paris, France
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17
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Aoun F, Bourgi A, Ayoub E, El Rassy E, van Velthoven R, Peltier A. Androgen deprivation therapy in the treatment of locally advanced, nonmetastatic prostate cancer: practical experience and a review of the clinical trial evidence. Ther Adv Urol 2017; 9:73-80. [PMID: 28392836 PMCID: PMC5378097 DOI: 10.1177/1756287217697661] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 02/10/2017] [Indexed: 11/15/2022] Open
Abstract
Following new scientific insights, initial management for patients with high-risk nonmetastatic prostate cancer has changed considerably and rapidly over the last few years. Several clinical and pathologic variables should be taken into account when deciding the best treatment choice for those patients. These variables are summarized and discussed in detail. High radiation doses to the prostate are essential to achieve good local control in patients with high-risk nonmetastatic disease. Addition of androgen deprivation therapy (ADT) to radiation therapy has significantly improved overall survival and cancer-specific survival compared with radiation therapy alone without significantly increasing toxicity. Long-term neo(adjuvant) ADT (2-3 years) to radiation therapy significantly improved cancer-specific survival compared with short-term ADT (4-6 months). Radical prostatectomy with extended pelvic lymph node dissection is considered a reasonable option in experienced hands. ADT alone is an inappropriate treatment option for patients with high-risk nonmetastatic disease. Management decisions for these patients should be discussed by a multidisciplinary team.
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Affiliation(s)
- Fouad Aoun
- Department of Urology, Jules Bordet Institute, Université Libre de Bruxelles, 1 Rue Héger Bordet, 1000 Brussels, Belgium
| | - Ali Bourgi
- Department of Urology, Hôtel Dieu de France, Saint Joseph University, Beirut, Lebanon
| | - Elias Ayoub
- Department of Urology, Hôtel Dieu de France, Saint Joseph University, Beirut, Lebanon
| | - Elie El Rassy
- Department of Oncology, Hôtel Dieu de France, Saint Joseph University, Beirut, Lebanon
| | - Roland van Velthoven
- Department of Urology, Jules Bordet Institute, Université Libre de Bruxelles, Brussels, Belgium
| | - Alexandre Peltier
- Department of Urology, Jules Bordet Institute, Université Libre de Bruxelles, Brussels, Belgium
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18
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Massoudi M, Balk M, Yang H, Bui CN, Pandya BJ, Guo J, Song Y, Wu EQ, Brown B, Barlev A, Flanders S. Number needed to treat and associated incremental costs of treatment with enzalutamide versus abiraterone acetate plus prednisone in chemotherapy-naïve patients with metastatic castration-resistant prostate cancer. J Med Econ 2017; 20:121-128. [PMID: 27570999 DOI: 10.1080/13696998.2016.1229670] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Enzalutamide (ENZA) and abiraterone acetate plus prednisone (AA) are approved second-generation hormone therapies for chemotherapy-naïve metastatic castration-resistant prostate cancer (mCRPC). This study compared ENZA with AA in chemotherapy-naïve mCRPC by calculating the number needed to treat (NNT) and associated incremental costs to achieve one additional chemotherapy-naïve patient with mCRPC free of radiographic progression, chemotherapy, or death over a 1-year time horizon. METHODS Clinical outcomes were obtained from the PREVAIL and COU-AA-302 trials. Three outcomes were evaluated: radiographic progression-free survival, time to cytotoxic chemotherapy initiation, and overall survival at 1 year. NNT was calculated as the reciprocal of the outcome event rate difference for ENZA compared with AA. The incremental costs to achieve one additional outcome at 1 year were calculated as the difference in cost per treated patient multiplied by the NNT. Per-treated-patient costs were considered from a US payer perspective and included medications, monitoring, adverse events, post-progression treatments, and end-of-life care. RESULTS Within a 1-year time horizon, the total cost per treated patient for ENZA was $2,666 less than AA. Compared with AA, treating 14 patients with ENZA resulted in one additional patient free of progression or death over 1 year; treating 26 patients with ENZA resulted in one additional patient with chemotherapy delayed over 1 year; and treating 91 patients with ENZA resulted in one additional patient free of death over 1 year. Therefore, ENZA is cost-effective compared with AA for all three outcomes evaluated, and the modeled results suggest ENZA is associated with potentially improved clinical outcomes in delaying chemotherapy initiation and disease progression for chemotherapy-naïve patients. The results are robust in sensitivity analyses, where the effect of changes in key model inputs and assumptions were tested. CONCLUSION The results modeled in the present study suggest ENZA is cost-effective compared with AA for treating chemotherapy-naïve patients with mCRPC.
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Affiliation(s)
| | - Mark Balk
- b Medivation, Inc. , San Francisco , CA , USA
| | | | - Cat N Bui
- a Astellas Pharma, Inc. , Northbrook , IL , USA
| | | | - Jenny Guo
- c Analysis Group , Boston , MA , USA
| | - Yan Song
- c Analysis Group , Boston , MA , USA
| | - Eric Q Wu
- c Analysis Group , Boston , MA , USA
| | - Bruce Brown
- a Astellas Pharma, Inc. , Northbrook , IL , USA
| | - Arie Barlev
- b Medivation, Inc. , San Francisco , CA , USA
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19
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Murthy V, Lewis S, Sawant M, Paul SN, Mahantshetty U, Shrivastava SK. Incidental Dose to Pelvic Nodal Regions in Prostate-Only Radiotherapy. Technol Cancer Res Treat 2016; 16:211-217. [PMID: 27492806 DOI: 10.1177/1533034616661447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES Pelvic lymph nodal regions receive an incidental dose from conformal treatment of the prostate. This study was conducted to investigate the doses received by the different pelvic nodal regions with varying techniques used for prostate radiotherapy. METHODS AND MATERIALS Twenty patients of high-risk node-negative prostate cancer treated with intensity-modulated radiotherapy to the prostate alone were studied. Replanning was done for intensity-modulated radiotherapy, 3-dimensional conformal treatment, and 2-dimensional conventional radiotherapy with additional delineation of the pelvic nodal regions, namely, common iliac (upper and lower), presacral, internal iliac, obturator, and external iliac. Dose-volume parameters such as Dmean, D100%, D66%, D33%, V40, and V50 to each of the nodal regions were estimated for all patients. RESULTS The obturator nodes received the highest dose among all nodal regions. The mean dose received by obturator nodal region was 44, 29, and 22 Gy from 2-dimensional conventional radiotherapy, 3-dimensional conformal treatment, and intensity-modulated radiotherapy, respectively. The mean dose was significantly higher when compared between 2-dimensional conventional radiotherapy and 3-dimensional conformal treatment ( P < .001), 2-dimensional conventional radiotherapy and intensity-modulated radiotherapy ( P < .001), and 3-dimensional conformal treatment and intensity-modulated radiotherapy ( P < .001). The D33% of the obturator region was 64, 39, and 37 Gy from 2-dimensional conventional radiotherapy, 3-dimensional conformal treatment, and intensity-modulated radiotherapy, respectively. The dose received by all other pelvic nodal regions was low and not clinically relevant. CONCLUSION The incidental dose received by obturator regions is significant especially with 2-dimensional conventional radiotherapy and 3-dimensional conformal treatment techniques as used in the trials studying elective pelvic nodal irradiation. However, with intensity-modulated radiotherapy, this dose is lower, making elective pelvic irradiation more relevant. Advances in Knowledge: This study highlights that incidental dose received by obturator regions is significant especially with 2-dimensional conventional radiotherapy and 3-dimensional conformal treatment techniques.
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Affiliation(s)
- Vedang Murthy
- 1 Department of Radiation Oncology, Tata Memorial Centre, Mumbai, India
| | - Shirley Lewis
- 1 Department of Radiation Oncology, Tata Memorial Centre, Mumbai, India
| | - Mayur Sawant
- 2 Department of Medical Physics, Tata Memorial Centre, Mumbai, India
| | - Siji N Paul
- 2 Department of Medical Physics, Tata Memorial Centre, Mumbai, India
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Zapatero A, Guerrero A, Maldonado X, Álvarez A, González-San Segundo C, Cabeza Rodriguez MA, Macías V, Pedro Olive A, Casas F, Boladeras A, Martín de Vidales C, Vázquez de la Torre ML, Calvo FA. Late Radiation and Cardiovascular Adverse Effects After Androgen Deprivation and High-Dose Radiation Therapy in Prostate Cancer: Results From the DART 01/05 Randomized Phase 3 Trial. Int J Radiat Oncol Biol Phys 2016; 96:341-348. [PMID: 27598804 DOI: 10.1016/j.ijrobp.2016.06.2445] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 06/08/2016] [Accepted: 06/14/2016] [Indexed: 12/13/2022]
Abstract
PURPOSE To present data on the late toxicity endpoints of a randomized trial (DART 01/05) conducted to determine whether long-term androgen deprivation (LTAD) was superior to short-term AD (STAD) when combined with high-dose radiation therapy (HDRT) in patients with prostate cancer (PCa). PATIENTS AND METHODS Between November 2005 and December 2010, 355 eligible men with cT1c-T3aN0M0 PCa and intermediate-risk and high-risk factors (2005 National Comprehensive Cancer Network criteria) were randomized to 4 months of AD combined with HDRT (median dose, 78 Gy) (STAD) or the same treatment followed by 24 months of AD (LTAD). Treatment-related complications were assessed using European Organization for Research and Treatment of Cancer-Radiation Therapy Oncology Group and Common Terminology Criteria for Adverse Events v3.0 scoring schemes. Multivariate analyses for late toxicity were done using the Fine-Gray method. RESULTS The 5-year incidence of grade ≥2 rectal and urinary toxicity was 11.1% and 8.2% for LTAD and 7.6% and 7.3% for STAD, respectively. Compared with STAD, LTAD was not significantly associated with a higher risk of late grade ≥2 rectal toxicity (hazard ratio [HR] 1.360, 95% confidence interval [CI] 0.660-2.790, P=.410) or urinary toxicity (HR 1.028, 95% CI 0.495-2.130, P=.940). The multivariate analysis showed that a baseline history of intestinal comorbidity (HR 3.510, 95% CI 1.560-7.930, P=.025) and the rectal volume receiving >60 Gy (Vr60) (HR 1.030, 95% CI 1.001-1.060, P=.043) were the only factors significantly correlated with the risk of late grade ≥2 rectal complications. A history of previous surgical prostate manipulations was significantly associated with a higher risk of grade ≥2 urinary complications (HR 2.427, 95% CI 1.051-5.600, P=.038). Long-term AD (HR 2.090; 95% CI 1.170-3.720, P=.012) and a history of myocardial infarction (HR 2.080; 95% CI 1.130-3.810, P=.018) were significantly correlated with a higher probability of cardiovascular events. CONCLUSION Long-term AD did not significantly impact urinary or rectal radiation-induced toxicity, although it was associated with a higher risk of cardiovascular events. Longer follow-up is needed to measure the impact of AD on late morbidity and non-PCa mortality.
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Affiliation(s)
| | | | | | - Ana Álvarez
- Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | | | | | - Victor Macías
- Hospital General de Catalunya, Sant Cugat del Vallès and Hospital Universitario de Salamanca, Salamanca, Spain
| | | | | | | | | | | | - Felipe A Calvo
- Hospital General Universitario Gregorio Marañón, Madrid, Spain
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High-dose radiotherapy with helical tomotherapy and long-term androgen deprivation therapy for prostate cancer: 5-year outcomes. J Cancer Res Clin Oncol 2016; 142:1609-19. [DOI: 10.1007/s00432-016-2173-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 04/25/2016] [Indexed: 10/21/2022]
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22
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Bellefqih S, Hadadi K, Mezouri I, Maghous A, Marnouche E, Andaloussi K, Elmarjany M, Sifat H, Mansouri H, Benjaafar N. Association de radiothérapie et d’hormonothérapie dans la prise en charge des cancers localisés de la prostate : où en est-on ? Cancer Radiother 2016; 20:141-50. [DOI: 10.1016/j.canrad.2015.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/21/2015] [Accepted: 12/24/2015] [Indexed: 12/12/2022]
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Byrne NM, Nesbitt H, Ming L, McKeown SR, Worthington J, McKenna DJ. Androgen deprivation in LNCaP prostate tumour xenografts induces vascular changes and hypoxic stress, resulting in promotion of epithelial-to-mesenchymal transition. Br J Cancer 2016; 114:659-68. [PMID: 26954717 PMCID: PMC4800298 DOI: 10.1038/bjc.2016.29] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 01/04/2016] [Accepted: 01/14/2016] [Indexed: 12/21/2022] Open
Abstract
Background: When single-agent androgen deprivation therapy (ADT) is administered for locally advanced prostate cancer, men usually relapse within 1–2 years with more malignant castrate-resistant disease. The reason for this is currently unknown. We now hypothesise that an initial treatment response that increases tumour hypoxia drives selection of more malignant tumours. Methods: The LNCaP prostate tumour xenografts were analysed for physiological (oxygen and vasculature) and genetic (PCR array) changes during longitudinal treatment with ADT (bicalutamide, 6 or 2 mg kg−1 daily for 28 days). Results: Bicalutamide caused an immediate (within 24 h) dose-dependent fall in oxygenation in LNCaP-luc prostate tumours with a nadir of ≤0.1% oxygen within 3–7 days; this was attributed to a significant loss of tumour microvessels (window chamber study). The hypoxic nadir persisted for 10–14 days. During the next 7 days, tumours regrew, oxygenation improved and the vasculature recovered; this was inhibited by the VEGF inhibitor B20.4.1.1. Gene expression over 28 days showed marked fluctuations consistent with the physiological changes. Accompanying the angiogenic burst (day 21) was a particularly striking increase in expression of genes associated with epithelial-to-mesenchymal transition (EMT). In particular, insulin-like growth factor 1 (IGF-1) showed increases in mRNA and protein expression. Conclusions: Hypoxic stress caused by ADT promotes EMT, providing a mechanism for the cause of malignant progression in prostate cancer.
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Affiliation(s)
- N M Byrne
- Biomedical Science Research Institute, University of Ulster, Cromore Road, Coleraine, BT52 1SA Northern Ireland, UK.,Bone Biology Division, Garvan Institute of Medical Research, Darlinghurst, Sydney, NSW 2010, Australia
| | - H Nesbitt
- Biomedical Science Research Institute, University of Ulster, Cromore Road, Coleraine, BT52 1SA Northern Ireland, UK
| | - L Ming
- Biomedical Science Research Institute, University of Ulster, Cromore Road, Coleraine, BT52 1SA Northern Ireland, UK
| | - S R McKeown
- Biomedical Science Research Institute, University of Ulster, Cromore Road, Coleraine, BT52 1SA Northern Ireland, UK
| | - J Worthington
- Axis Bioservices Ltd, Research Laboratory, Castleroe Road, Coleraine BT51 3RP, Northern Ireland, UK
| | - D J McKenna
- Biomedical Science Research Institute, University of Ulster, Cromore Road, Coleraine, BT52 1SA Northern Ireland, UK
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Mizowaki T, Norihisa Y, Takayama K, Ikeda I, Inokuchi H, Nakamura K, Kamba T, Inoue T, Kamoto T, Ogawa O, Hiraoka M. Ten-year outcomes of intensity-modulated radiation therapy combined with neoadjuvant hormonal therapy for intermediate- and high-risk patients with T1c-T2N0M0 prostate cancer. Int J Clin Oncol 2016; 21:783-790. [PMID: 26843024 DOI: 10.1007/s10147-016-0954-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 01/13/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND We aimed to analyze the 10-year outcomes of intensity-modulated radiation therapy (IMRT) combined with neoadjuvant hormonal therapy (HT) for patients with intermediate- and high-risk T1c-T2N0M0 prostate cancer. METHODS Fifty patients with T1c-T2N0M0 prostate cancer, who were treated with high-dose IMRT combined with neoadjuvant HT, were evaluated. Of these patients, 19 and 31 were classified into the intermediate- and high-risk groups, respectively. Neoadjuvant HT was administered over a median duration of 6 months; 74 and 78 Gy in 2 Gy per fraction were essentially delivered to the intermediate- and high-risk cases, respectively. Adjuvant HT was not administered to any of the patients after the completion of IMRT. RESULTS Over a median follow-up period of 118 months, the 10-year prostate-specific antigen failure-free survival, prostate-specific antigen failure-free, salvage hormonal therapy-free, prostate cancer-specific survival, and overall survival rates were 70.2 %, 78.7 %, 89.2 %, 100 %, and 88.8 %, respectively. No grade 3 or higher acute or late toxicities were observed. The 10-year likelihoods of developing grade 2 late urinary and rectal toxicities were 13.7 % and 4.2 %, respectively. Compared with the outcomes of a cohort of historical controls who were locally irradiated with 70 Gy by three-dimensional conformal radiotherapy, the prostate-specific antigen failure-free rate was significantly better in the IMRT groups (78.7 % vs. 53.4 % at 10 years; p = 0.027). CONCLUSIONS High-dose IMRT combined with neoadjuvant HT achieved not only high prostate-specific antigen control, but also excellent survival outcomes with acceptable morbidities, for a Japanese cohort of intermediate- and high-risk T1c-T2N0M0 prostate cancer patients, and these results warrant further investigation.
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Affiliation(s)
- Takashi Mizowaki
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Yoshiki Norihisa
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Kenji Takayama
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Itaru Ikeda
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Haruo Inokuchi
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Kiyonao Nakamura
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Tomomi Kamba
- Department of Urology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Takahiro Inoue
- Department of Urology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Toshiyuki Kamoto
- Department of Urology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Osamu Ogawa
- Department of Urology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Masahiro Hiraoka
- Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
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25
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Is choline PET useful for identifying intraprostatic tumour lesions? A literature review. Nucl Med Commun 2015; 36:871-80. [DOI: 10.1097/mnm.0000000000000338] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Mizowaki T, Norihisa Y, Takayama K, Ikeda I, Inokuchi H, Nakamura K, Kamba T, Inoue T, Kamoto T, Ogawa O, Hiraoka M. Long-term outcomes of intensity-modulated radiation therapy combined with neoadjuvant androgen deprivation therapy under an early salvage policy for patients with T3-T4N0M0 prostate cancer. Int J Clin Oncol 2015; 21:148-55. [DOI: 10.1007/s10147-015-0867-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 06/19/2015] [Indexed: 12/12/2022]
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Lennernäs B, Majumder K, Damber JE, Albertsson P, Holmberg E, Brandberg Y, Isacsson U, Ljung G, Damm O, Nilsson S. Radical prostatectomy versus high-dose irradiation in localized/locally advanced prostate cancer: A Swedish multicenter randomized trial with patient-reported outcomes. Acta Oncol 2015; 54:875-81. [PMID: 25362844 DOI: 10.3109/0284186x.2014.974827] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Treatment of localized prostate cancer (PC) is controversial. This is the first randomized study comparing an open surgery procedure (radical prostatectomy) with a combination of high-dose rate brachytherapy (2×10 Gy) and external beam radiotherapy (25×2 Gy) in PC patients in Sweden 1996-2001. The two randomization arms were compared regarding differences in patients-reported outcomes, such as complications and health-related quality of life (HRQoL). MATERIAL AND METHODS The patients had localized/locally advanced PC, clinical category T1b-T3a, N0, M0 and PSA≤50 ng/ml. All underwent total androgen blockade (six months). Self-reported HRQoL and symptoms including urinary, bowel, and sexual side effects were investigated prospectively before randomization and 12 and 24 months after randomization. A total of 89 patients were randomized and completed the EORTC QLQ C-33 and EORTC PR-25 questionnaires. RESULTS Over the study period, there were no discernible differences in HRQoL, or complications between the two groups. Emotional functioning, however, improved statistically significantly over time, whereas Social functioning decreased, and financial difficulties increased. No statistically significant differences in group-by-time interactions were found. The survival rate was 76%. Only eight patients (9%) died of PC. CONCLUSION Open radical prostatectomy and the combined high-dose rate brachytherapy with external beam radiation appeared to be comparable in the measured outcomes. It was not possible to draw any conclusion on the efficacy of the two treatments due to insufficient power of the study.
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Affiliation(s)
- Bo Lennernäs
- Department of Oncology-Pathology, Karolinska Institutet , Stockholm , Sweden
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Survival benefit of early androgen receptor inhibitor therapy in locally advanced prostate cancer: long-term follow-up of the SPCG-6 study. Eur J Cancer 2015; 51:1283-92. [PMID: 25892647 DOI: 10.1016/j.ejca.2015.03.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/05/2015] [Accepted: 03/23/2015] [Indexed: 11/24/2022]
Abstract
BACKGROUND The optimal timing of endocrine therapy in non-metastatic prostate cancer (PCa) is still an issue of debate. METHODS A randomised, double-blind, parallel-group trial comparing bicalutamide 150mg once daily with placebo in addition to standard care in patients with hormone-naïve, non-metastatic PCa. Kaplan-Meier analysis was used to estimate overall survival (OS) and multivariate Cox proportional hazard model was performed to analyse time-to-event (death). FINDINGS A total of 1218 patients were included into the Scandinavian Prostate Cancer Group (SPCG)-6 study of which 607 were randomised to receive bicalutamide in addition to their standard care and 611 to receive placebo. Median follow-up was 14.6years. Overall, 866 (71.1%) patients died, 428 (70.5%) in the bicalutamide arm and 438 (71.7%) in the placebo arm, p=0.87. Bicalutamide significantly improved OS in patient with locally advanced disease (hazard ratios (HR)=0.77 (95% confidence interval (CI): 0.63-0.94, p=0.01), regardless of baseline prostate-specific antigen (PSA), with a survival benefit which was apparent throughout the study period. In contrast, survival favoured randomisation to the placebo arm in patients with localised disease (HR=1.19 (95% CI: 1.00-1.43), p=0.056). However, a survival gain from bicalutamide therapy was present in patients with localised disease and a baseline PSA greater than 28ng/mL at randomisation. In multivariate Cox proportional hazard model, only including patients managed on watchful waiting as their standard of care (n=991) OS depended on age, World Health Organisation (WHO) grade, baseline PSA, clinical stage and randomised treatment. INTERPRETATION Throughout the 14.6year follow-up period the addition of early bicalutamide to standard of care resulted in a significant OS benefit in patients with locally advanced PCa. In contrast, patients with localised PCa and low PSA derived no survival benefit from early bicalutamide. The optimal timing for initiating bicalutamide in non-metastatic PCa patients is dependent on disease stage and baseline PSA.
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Zapatero A, Guerrero A, Maldonado X, Alvarez A, Segundo CGS, Rodríguez MAC, Macias V, Olive AP, Casas F, Boladeras A, de Vidales CM, de la Torre MLV, Villà S, de la Haza AP, Calvo FA. High-dose radiotherapy with short-term or long-term androgen deprivation in localised prostate cancer (DART01/05 GICOR): a randomised, controlled, phase 3 trial. Lancet Oncol 2015; 16:320-7. [DOI: 10.1016/s1470-2045(15)70045-8] [Citation(s) in RCA: 216] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Eom KY, Ha SW, Lee E, Kwak C, Lee SE. Is neoadjuvant androgen deprivation therapy beneficial in prostate cancer treated with definitive radiotherapy? Radiat Oncol J 2014; 32:247-55. [PMID: 25568853 PMCID: PMC4282999 DOI: 10.3857/roj.2014.32.4.247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 05/31/2014] [Accepted: 12/09/2014] [Indexed: 11/03/2022] Open
Abstract
PURPOSE To determine whether neoadjuvant androgen deprivation therapy (NADT) improves clinical outcomes in patients with prostate cancer treated with definitive radiotherapy. MATERIALS AND METHODS We retrospectively reviewed medical records of 201 patients with prostate cancer treated with radiotherapy between January 1991 and December 2008. Of these, 156 patients with more than 3 years of follow-up were the subjects of this study. The median duration of follow-up was 91.2 months. NADT was given in 103 patients (66%) with median duration of 3.3 months (range, 1.0 to 7.7 months). Radiation dose was escalated gradually from 64 Gy to 81 Gy using intensity-modulated radiotherapy technique. RESULTS Biochemical relapse-free survival (BCRFS) and overall survival (OS) of all patients were 72.6% and 90.7% at 5 years, respectively. BCRFS and OS of NADT group were 79.5% and 89.8% at 5 years and those of radiotherapy alone group were 58.8% and 92.3% at 5 years, respectively. Risk group (p = 0.010) and radiation dose ≥70 Gy (p = 0.017) affected BCRFS independently. NADT was a significant prognostic factor in univariate analysis, but not in multivariate analysis (p = 0.073). Radiation dose ≥70 Gy was only an independent factor for OS (p = 0.007; hazard ratio, 0.261; 95% confidence interval, 0.071-0.963). CONCLUSION NADT prior to definitive radiotherapy did not result in significant benefit in terms of BCRFS and OS. NADT should not be performed routinely in the era of dose-escalated radiotherapy.
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Affiliation(s)
- Keun-Yong Eom
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea
| | - Sung W Ha
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea. ; Institute of Radiation Medicine, Medical Research Center, Seoul National University, Seoul, Korea. ; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Eunsik Lee
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
| | - Cheol Kwak
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
| | - Sang Eun Lee
- Department of Urology, Seoul National University Bundang Hospital, Seongam, Korea
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Aoun F, Peltier A, van Velthoven R. A comprehensive review of contemporary role of local treatment of the primary tumor and/or the metastases in metastatic prostate cancer. BIOMED RESEARCH INTERNATIONAL 2014; 2014:501213. [PMID: 25485280 PMCID: PMC4251412 DOI: 10.1155/2014/501213] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 09/09/2014] [Indexed: 01/09/2023]
Abstract
To provide an overview of the currently available literature regarding local control of primary tumor and oligometastases in metastatic prostate cancer and salvage lymph node dissection of clinical lymph node relapse after curative treatment of prostate cancer. Evidence Acquisition. A systematic literature search was conducted in 2014 to identify abstracts, original articles, review articles, research articles, and editorials relevant to the local control in metastatic prostate cancer. Evidence Synthesis. Local control of primary tumor in metastatic prostate cancer remains experimental with low level of evidence. The concept is supported by a growing body of genetic and molecular research as well as analogy with other cancers. There is only one retrospective observational population based study showing prolonged survival. To eradicate oligometastases, several options exist with excellent local control rates. Stereotactic body radiotherapy is safe, well tolerated, and efficacious treatment for lymph node and bone lesions. Both biochemical and clinical progression are slowed down with a median time to initiate ADT of 2 years. Salvage lymph node dissection is feasible in patients with clinical lymph node relapse after local curable treatment. Conclusion. Despite encouraging oncologic midterm results, a complete cure remains elusive in metastatic prostate cancer patients. Further advances in imaging are crucial in order to rapidly evolve beyond the proof of concept.
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Affiliation(s)
- Fouad Aoun
- Department of Urology, Jules Bordet Institute, 1 Héger-Bordet Street, 1000 Brussels, Belgium
- Université Libre de Bruxelles, 50 Franklin Roosevelt Avenue, 1050 Brussels, Belgium
| | - Alexandre Peltier
- Department of Urology, Jules Bordet Institute, 1 Héger-Bordet Street, 1000 Brussels, Belgium
- Université Libre de Bruxelles, 50 Franklin Roosevelt Avenue, 1050 Brussels, Belgium
| | - Roland van Velthoven
- Department of Urology, Jules Bordet Institute, 1 Héger-Bordet Street, 1000 Brussels, Belgium
- Université Libre de Bruxelles, 50 Franklin Roosevelt Avenue, 1050 Brussels, Belgium
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Lin YW, Lin LC, Lin KL. The early result of whole pelvic radiotherapy and stereotactic body radiotherapy boost for high-risk localized prostate cancer. Front Oncol 2014; 4:278. [PMID: 25401085 PMCID: PMC4215618 DOI: 10.3389/fonc.2014.00278] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 09/26/2014] [Indexed: 11/13/2022] Open
Abstract
Purpose: The rationale for hypofractionated radiotherapy in the treatment of prostate cancer is based on the modern understanding of radiobiology and advances in stereotactic body radiotherapy (SBRT) techniques. Whole-pelvis irradiation combined with SBRT boost for high-risk prostate cancer might escalate biologically effective dose without increasing toxicity. Here, we report our 4-year results of SBRT boost for high-risk localized prostate cancer. Methods and Materials: From October 2009 to August 2012, 41 patients newly diagnosed, high-risk or very high-risk (NCCN definition) localized prostate cancer were treated with whole-pelvis irradiation and SBRT boost. The whole pelvis dose was 45 Gy (25 fractions of 1.8 Gy). The SBRT boost dose was 21 Gy (three fractions of 7 Gy). Ninety percent of these patients received hormone therapy. The toxicities of gastrointestinal (GI) and genitourinary (GU) tracts were scored by Common Toxicity Criteria Adverse Effect (CTCAE v3.0). Biochemical failure was defined by Phoenix definition. Results: Median follow-up was 42 months. Mean PSA before treatment was 44.18 ng/ml. Mean PSA level at 3, 6, 12, 18, and 24 months was 0.94, 0.44, 0.13, 0.12, and 0.05 ng/ml, respectively. The estimated 4-year biochemical failure-free survival was 91.9%. Three biochemical failures were observed. GI and GU tract toxicities were minimal. No grade 3 acute GU or GI toxicity was noted. During radiation therapy, 27% of the patient had grade 2 acute GU toxicity and 12% had grade 2 acute GI toxicity. At 3 months, most toxicity scores had returned to baseline. At the last follow-up, there was no grade 3 late GU or GI toxicity. Conclusions: Whole-pelvis irradiation combined with SBRT boost for high-risk localized prostate cancer is feasible with minimal toxicity and encouraging biochemical failure-free survival. Continued accrual and follow-up would be necessary to confirm the biochemical control rate and the toxicity profiles.
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Affiliation(s)
- Yu-Wei Lin
- Department of Radiation Oncology, Chi Mei Medical Center , Tainan , Taiwan ; Institute of Biomedical Sciences, National Sun Yat-sen University , Kaohsiung , Taiwan ; The School of Medicine, Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Li-Ching Lin
- Department of Radiation Oncology, Chi Mei Medical Center , Tainan , Taiwan ; School of Medicine, Taipei Medical University , Taipei , Taiwan
| | - Kuei-Li Lin
- Department of Radiation Oncology, Chi Mei Medical Center , Tainan , Taiwan
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Zhu Z, Zhang J, Liu Y, Chen M, Guo P, Li K. Efficacy and toxicity of external-beam radiation therapy for localised prostate cancer: a network meta-analysis. Br J Cancer 2014; 110:2396-404. [PMID: 24736585 PMCID: PMC4021530 DOI: 10.1038/bjc.2014.197] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 03/17/2014] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Many radiation regimens for treating prostate cancer have been used over the years, but which regimen is optimal for localised or locally advanced prostate cancer lacks consensus. We performed a network meta-analysis to identify the optimal radiation regimen. METHODS We systematically reviewed data from 27 randomised controlled trials and could group seven radiation regimens as follows: low- and high-dose radiation therapy (LDRT and HDRT), LDRT+ short- or long-term androgen deprivation therapy (LDRT+SADT and LDRT+LADT), HDRT+SADT, hypofractionated radiotherapy (HFRT), and HFRT+SADT. The main outcomes were overall mortality (OM), prostate-specific antigen (PSA) failure, cancer-specific mortality, and adverse events. RESULTS For the network meta-analysis of 27 trials, LDRT+LADT and LDRT+SADT were associated with decreased risk of OM as compared with LDRT alone as was LDRT+LADT compared with HDRT. Apart from HFRT, all other treatments were associated with decreased risk of PSA failure as compared with LDRT. HFRT+SADT was associated with decreased risk of cancer-specific mortality as compared with HFRT, LDRT+SADT, HDRT, and LDRT. CONCLUSIONS HFRT+SADT therapy might be the most efficacious treatment but with worst toxicity for localised or locally advanced prostate cancer, and HDRT showed excellent efficacy but more adverse events.
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Affiliation(s)
- Z Zhu
- Department of Public Health, Shantou University Medical College, No. 22 Xinling Road, Shantou, Guangdong 515041, China
| | - J Zhang
- Department of Public Health, Shantou University Medical College, No. 22 Xinling Road, Shantou, Guangdong 515041, China
| | - Y Liu
- Department of Public Health, Shantou University Medical College, No. 22 Xinling Road, Shantou, Guangdong 515041, China
| | - M Chen
- Department of Public Health, Shantou University Medical College, No. 22 Xinling Road, Shantou, Guangdong 515041, China
| | - P Guo
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - K Li
- Department of Public Health, Shantou University Medical College, No. 22 Xinling Road, Shantou, Guangdong 515041, China
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Dearnaley DP, Jovic G, Syndikus I, Khoo V, Cowan RA, Graham JD, Aird EG, Bottomley D, Huddart RA, Jose CC, Matthews JHL, Millar JL, Murphy C, Russell JM, Scrase CD, Parmar MKB, Sydes MR. Escalated-dose versus control-dose conformal radiotherapy for prostate cancer: long-term results from the MRC RT01 randomised controlled trial. Lancet Oncol 2014; 15:464-73. [PMID: 24581940 DOI: 10.1016/s1470-2045(14)70040-3] [Citation(s) in RCA: 337] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND The aim of this trial was to compare dose-escalated conformal radiotherapy with control-dose conformal radiotherapy in patients with localised prostate cancer. Preliminary findings reported after 5 years of follow-up showed that escalated-dose conformal radiotherapy improved biochemical progression-free survival. Based on the sample size calculation, we planned to analyse overall survival when 190 deaths occurred; this target has now been reached, after a median 10 years of follow-up. METHODS RT01 was a phase 3, open-label, international, randomised controlled trial enrolling men with histologically confirmed T1b-T3a, N0, M0 prostate cancer with prostate specific antigen of less than 50 ng/mL. Patients were randomly assigned centrally in a 1:1 ratio, using a computer-based minimisation algorithm stratifying by risk of seminal vesicle invasion and centre to either the control group (64 Gy in 32 fractions, the standard dose at the time the trial was designed) or the escalated-dose group (74 Gy in 37 fractions). Neither patients nor investigators were masked to assignment. All patients received neoadjuvant androgen deprivation therapy for 3-6 months before the start of conformal radiotherapy, which continued until the end of conformal radiotherapy. The coprimary outcome measures were biochemical progression-free survival and overall survival. All analyses were done on an intention-to-treat basis. Treatment-related side-effects have been reported previously. This trial is registered, number ISRCTN47772397. FINDINGS Between Jan 7, 1998, and Dec 20, 2001, 862 men were registered and 843 subsequently randomly assigned: 422 to the escalated-dose group and 421 to the control group. As of Aug 2, 2011, 236 deaths had occurred: 118 in each group. Median follow-up was 10·0 years (IQR 9·1-10·8). Overall survival at 10 years was 71% (95% CI 66-75) in each group (hazard ratio [HR] 0·99, 95% CI 0·77-1·28; p=0·96). Biochemical progression or progressive disease occurred in 391 patients (221 [57%] in the control group and 170 [43%] in the escalated-dose group). At 10 years, biochemical progression-free survival was 43% (95% CI 38-48) in the control group and 55% (50-61) in the escalated-dose group (HR 0·69, 95% CI 0·56-0·84; p=0·0003). INTERPRETATION At a median follow-up of 10 years, escalated-dose conformal radiotherapy with neoadjuvant androgen deprivation therapy showed an advantage in biochemical progression-free survival, but this advantage did not translate into an improvement in overall survival. These efficacy data for escalated-dose treatment must be weighed against the increase in acute and late toxicities associated with the escalated dose and emphasise the importance of use of appropriate modern radiotherapy methods to reduce side-effects. FUNDING UK Medical Research Council.
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Affiliation(s)
- David P Dearnaley
- The Institute of Cancer Research, London, UK; The Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | - Gordana Jovic
- Medical Research Council Clinical Trials Unit at University College London, London, UK
| | | | - Vincent Khoo
- The Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | | | | | | | | | - Robert A Huddart
- The Institute of Cancer Research, London, UK; The Royal Marsden NHS Foundation Trust, London and Sutton, UK
| | | | | | | | - Claire Murphy
- Medical Research Council Clinical Trials Unit at University College London, London, UK
| | | | | | - Mahesh K B Parmar
- Medical Research Council Clinical Trials Unit at University College London, London, UK
| | - Matthew R Sydes
- Medical Research Council Clinical Trials Unit at University College London, London, UK.
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[Radiation therapy in locally advanced and/or relapsed urological tumors]. Urologia 2014; 80:212-24. [PMID: 24526598 DOI: 10.5301/ru.2013.11501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2013] [Indexed: 11/20/2022]
Abstract
Radiation therapy (RT) plays a fundamental role in the treatment of locally advanced and/or relapsed urological tumors, as well as in palliation, or as definitive treatment, and even where integrated into a multi-modal approach. In operated renal tumors, positive margins or extracapsular extension show a positive impact of postoperative RT, with a reduction of relapses between 100% and 30%, while, in the case of palliation, treatments with RT at high doses are preferred. In advanced cancers of the upper urinary tract, RT plays a limited role, even if it seems to increase the level of disease control locally and, with the combination of cisplatin, survival rates too. An important reduction in the recurrence is also observed in locally advanced tumors of the urethra, with a recurrence of 60% after surgery, 36% after RT and 25% after pairing of the two. In locally advanced tumors of the penis, RT shows poorer results than surgery, and the addition of postoperative RT does not seem to add any further outcome, except where, in the presence of a positive inguinal dissection, the postoperative RT reduces lymph node recurrences by 60%-11%. Interesting data for the preservation of the organ are reported with reference to the combination with chemotherapy. In the tumors of the testis, it is still disputable whether the treatment of residual masses after chemotherapy may be appropriate, with a view to a possible salvage radiotherapy. In the treatment of the prostate, the role of RT is consolidated and evolving with the progress of dose escalation, the association with hormonal therapy, new technologies, new possibilities of IMRT and proton therapy and various studies on multi-modal approaches (hormone therapy, surgery, radiotherapy, chemotherapy). Cystectomy is the gold standard for the treatment of locally advanced bladder cancer, even though there is a revived interest in multimodal treatments (transurethral resection, chemotherapy, RT) that may allow the organ preservation. Postoperative radiotherapy, which can reduce by 50% to 20%-5% local recurrences that are highly correlated with distance failure and with survival, should be revised in the light of modern RT techniques that can further increase local control levels and reduce the toxicity significantly.
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Guttilla A, Bortolus R, Giannarini G, Ghadjar P, Zattoni F, Gnech M, Palumbo V, Valent F, Garbeglio A, Zattoni F. Multimodal treatment for high-risk prostate cancer with high-dose intensity-modulated radiation therapy preceded or not by radical prostatectomy, concurrent intensified-dose docetaxel and long-term androgen deprivation therapy: results of a prospective phase II trial. Radiat Oncol 2014; 9:24. [PMID: 24423462 PMCID: PMC3905924 DOI: 10.1186/1748-717x-9-24] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 12/30/2013] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The optimal management of high-risk prostate cancer remains uncertain. In this study we assessed the safety and efficacy of a novel multimodal treatment paradigm for high-risk prostate cancer. METHODS This was a prospective phase II trial including 35 patients with newly diagnosed high-risk localized or locally advanced prostate cancer treated with high-dose intensity-modulated radiation therapy preceded or not by radical prostatectomy, concurrent intensified-dose docetaxel-based chemotherapy and long-term androgen deprivation therapy. Primary endpoint was acute and late toxicity evaluated with the Common Terminology Criteria for Adverse Events version 3.0. Secondary endpoint was biochemical and clinical recurrence-free survival explored with the Kaplan-Meier method. RESULTS Acute gastro-intestinal and genito-urinary toxicity was grade 2 in 23% and 20% of patients, and grade 3 in 9% and 3% of patients, respectively. Acute blood/bone marrow toxicity was grade 2 in 20% of patients. No acute grade ≥ 4 toxicity was observed. Late gastro-intestinal and genito-urinary toxicity was grade 2 in 9% of patients each. No late grade ≥ 3 toxicity was observed. Median follow-up was 63 months (interquartile range 31-79). Actuarial 5-year biochemical and clinical recurrence-free survival rate was 55% (95% confidence interval, 35-75%) and 70% (95% confidence interval, 52-88%), respectively. CONCLUSIONS In our phase II trial testing a novel multimodal treatment paradigm for high-risk prostate cancer, toxicity was acceptably low and mid-term oncological outcome was good. This treatment paradigm, thus, may warrant further evaluation in phase III randomized trials.
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Affiliation(s)
- Andrea Guttilla
- Department of Oncological, Surgical and Gastroenterological Sciences, Urology Clinic, University of Padua, Padua 35128, Italy.
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Creak A, Hall E, Horwich A, Eeles R, Khoo V, Huddart R, Parker C, Griffin C, Bidmead M, Warrington J, Dearnaley D. Randomised pilot study of dose escalation using conformal radiotherapy in prostate cancer: long-term follow-up. Br J Cancer 2013; 109:651-7. [PMID: 23880826 PMCID: PMC3738135 DOI: 10.1038/bjc.2013.394] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 06/10/2013] [Accepted: 06/22/2013] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Radical three-dimensional conformal radiotherapy (CFRT) with initial androgen suppression (AS) is a standard management for localised prostate cancer (PC). This pilot study evaluated the role of dose escalation and appropriate target volume margin. Here, we report long-term follow-up. METHODS Eligible patients had T1b-T3b N0 M0 PC. After neoadjuvant AS, they were randomised to CFRT, giving (a) 64 Gy with either a 1.0- or 1.5-cm margin and (b) ±10 Gy boost to the prostate alone. RESULTS One hundred and twenty-six men were randomised and treated. Median follow-up was 13.7 years. The median age was 66.6 years at randomisation. Median presenting prostate-specific antigen (PSA) was 14 ng ml(-1). Sixty-four out of 126 patients developed PSA failure. Forty-nine out of 126 patients restarted AS, 34 out of 126 developed metastases and 28 out of 126 developed castrate-resistant prostate cancer (CRPC). Fifty-one out of 126 patients died; 19 out of 51 died of PC. Median overall survival (OS) was 14.4 years. Although escalated dose results were favourable, no statistically significant differences were seen between the randomised groups; PSA control (hazard ratio (HR): 0.77 (95% confidence interval (CI): 0.47-1.26)), development of CRPC (HR: 0.81 (95% CI: 0.40-1.65)), PC-specific survival (HR: 0.59 (95% CI:0.23-1.49)) and OS (HR: 0.81 (95% CI: 0.47-1.40)). There was no evidence of a difference in PSA control according to margin size (HR: 1.01 (95% CI: 0.61-1.66)). INTERPRETATION Long-term follow-up of this small pilot study is compatible with a benefit from dose escalation, but confirmation from larger trials is required. There was no obvious detriment using the smaller radiotherapy margin.
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Affiliation(s)
- A Creak
- Academic Urology Unit, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton and London, UK
| | - E Hall
- Clinical Trials and Statistics Unit (ICR-CTSU), The Institute of Cancer Research, London, UK
| | - A Horwich
- Academic Urology Unit, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton and London, UK
| | - R Eeles
- Academic Urology Unit, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton and London, UK
| | - V Khoo
- Academic Urology Unit, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton and London, UK
| | - R Huddart
- Academic Urology Unit, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton and London, UK
| | - C Parker
- Academic Urology Unit, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton and London, UK
| | - C Griffin
- Clinical Trials and Statistics Unit (ICR-CTSU), The Institute of Cancer Research, London, UK
| | - M Bidmead
- Joint Department of Physics, Royal Marsden Hospital Trust and The Institute of Cancer Research, Sutton and London, UK
| | - J Warrington
- Joint Department of Physics, Royal Marsden Hospital Trust and The Institute of Cancer Research, Sutton and London, UK
| | - D Dearnaley
- Academic Urology Unit, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton and London, UK
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Tree A, Alexander E, Van As N, Dearnaley D, Khoo V. Biological Dose Escalation and Hypofractionation: What is There to be Gained and How Will it Best be Done? Clin Oncol (R Coll Radiol) 2013; 25:483-98. [DOI: 10.1016/j.clon.2013.05.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Accepted: 05/09/2013] [Indexed: 12/12/2022]
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Chipperfield K, Fletcher J, Millar J, Brooker J, Smith R, Frydenberg M, Oh T, Burney S. Factors associated with adherence to physical activity guidelines in patients with prostate cancer. Psychooncology 2013; 22:2478-86. [PMID: 23749430 DOI: 10.1002/pon.3310] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 04/22/2013] [Accepted: 04/24/2013] [Indexed: 11/06/2022]
Abstract
OBJECTIVE This study aimed to estimate the proportion of patients with prostate cancer (PCa) meeting the National Physical Activity Guidelines of Australia (NPAGA) and determine sociodemographic and medical factors associated with meeting these guidelines. Secondary aims included examining physical activity (PA) levels by treatment type and domain (leisure, work, transport and domestic) and establishing a predictive model of the likelihood that men with PCa would meet NPAGA. METHODS A questionnaire was mailed to 638 men with PCa attending for treatment at the Alfred, Cabrini or Latrobe Regional Hospitals during 2010 and 2011, with a response rate of 59%. Measures included International Physical Activity Questionnaire, Hospital Anxiety and Depression Scale, Functional Assessment of Cancer Therapy - Prostate and sociodemographic items. Inclusion criteria were English speaking men aged 40 to 80 years, who had undergone radiotherapy (RT) between 9 and 30 months prior to the survey. RESULTS Of 356 men with PCa, less than half were meeting NPAGA (41.9%). Lower education and quality of life (QoL), a higher number of comorbid conditions and symptoms of depression and anxiety were associated with decreased leisure-time PA. Patients treated with androgen deprivation therapy were significantly less active than patients treated with RT only. Logistic regression analyses indicated that the likelihood of meeting NPAGA was significantly lower with higher levels of depressive symptoms and lower levels of education. CONCLUSIONS Meeting NPAGA is associated with higher QoL and psychosocial well-being in men with PCa. These findings contribute important information for targeting PA interventions to PCa survivors.
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Affiliation(s)
- Kelly Chipperfield
- School of Psychology and Psychiatry, Monash University, Melbourne, Australia
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Results of hormone therapy as first-line treatment for high-risk prostate cancer. Curr Opin Urol 2013; 23:355-9. [PMID: 23665742 DOI: 10.1097/mou.0b013e328361f503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW To assess the current place for androgen deprivation therapy as single modality in locally advanced nonmetastatic situations. RECENT FINDINGS One standard of care for node negative locally advanced disease is a combination of external beam with androgen deprivation treatment. Several recent randomized trials have confirmed the key role of a local treatment combined to a systemic one in terms of specific and overall survival. The specific morbidity of this combined modality appears to be minimal. Retrospective data also suggest that a local treatment should be considered in case of positive nodes. Finally, the real place of immediate single hormonal treatment has also been clarified. The limited survival benefit has to be balanced with the side-effects. Therefore, this single modality should be limited to the most aggressive situations when no local treatment is planned. SUMMARY Single hormonal treatment for nonmetastatic advanced prostate cancer appears to be limited to the few patients unfit or unwilling for a local treatment and having a high prostate-specific antigen and a short prostate-specific antigen doubling time. In all other situations, it might represent a clear undertreatment.
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Close A, Robertson C, Rushton S, Shirley M, Vale L, Ramsay C, Pickard R. Comparative cost-effectiveness of robot-assisted and standard laparoscopic prostatectomy as alternatives to open radical prostatectomy for treatment of men with localised prostate cancer: a health technology assessment from the perspective of the UK National Health Service. Eur Urol 2013; 64:361-9. [PMID: 23498062 DOI: 10.1016/j.eururo.2013.02.040] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 02/25/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Robot-assisted laparoscopic prostatectomy is increasingly used compared with a standard laparoscopic technique, but it remains uncertain whether potential benefits offset higher costs. OBJECTIVE To determine the cost-effectiveness of robotic prostatectomy. DESIGN, SETTING, AND PARTICIPANTS We conducted a care pathway description and model-based cost-utility analysis. We studied men with localised prostate cancer able to undergo either robotic or laparoscopic prostatectomy for cure. We used data from a meta-analysis, other published literature, and costs from the UK National Health Service and commercial sources. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Care received by men for 10 yr following radical prostatectomy was modelled. Clinical events, their effect on quality of life, and associated costs were synthesised assuming 200 procedures were performed annually. RESULTS AND LIMITATIONS Over 10 yr, robotic prostatectomy was on average (95% confidence interval [CI]) £1412 (€1595) (£1304 [€1473] to £1516 [€1713]) more costly than laparoscopic prostatectomy but more effective with mean (95% CI) gain in quality-adjusted life-years (QALYs) of 0.08 (0.01-0.15). The incremental cost-effectiveness ratio (ICER) was £18 329 (€20 708) with an 80% probability that robotic prostatectomy was cost effective at a threshold of £30 000 (€33 894)/QALY. The ICER was sensitive to the throughput of cases and the relative positive margin rate favouring robotic prostatectomy. CONCLUSIONS Higher costs of robotic prostatectomy may be offset by modest health gain resulting from lower risk of early harms and positive margin, provided >150 cases are performed each year. Considerable uncertainty persists in the absence of directly comparative randomised data.
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Affiliation(s)
- Andrew Close
- School of Biology, Newcastle University, Newcastle upon Tyne, UK
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Quon JL, Yu JB, Soulos PR, Gross CP. The relation between age and androgen deprivation therapy use among men in the Medicare population receiving radiation therapy for prostate cancer. J Geriatr Oncol 2013; 4:9-18. [PMID: 23482846 PMCID: PMC3591488 DOI: 10.1016/j.jgo.2012.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Neoadjuvant and concurrent androgen deprivation therapy (ncADT) is recommended for men with high-risk prostate cancer, but not low-risk cancer or short life expectancy. It is unclear whether the use of ncADT among older men in the community setting is aligned with the potential for clinical benefit. MATERIALS AND METHODS We used the Surveillance, Epidemiology, and End Results–Medicare database to assess patterns of ncADT use among men diagnosed with prostate cancer during 2004–2007 who received radiation therapy. Men were stratified according to tumor risk groups and life expectancy. We used logistic regression to identify factors associated with ncADT use within each risk group. RESULTS There were 10,686 men in the sample (mean age 74.2 years; 83.4% white). The use of ncADT was 80.7%, 54.1%, and 27.8% in the high-, intermediate-, and low-risk groups, respectively. Men with a life expectancy<5 years had higher rates of ncADT use than men with a life expectancy≥10 years in all risk groups. Within each risk group, advancing age was associated with higher likelihood of receiving ncADT (odds ratio for men aged 80–84 compared to 67–69=1.93 (95% CI 1.37–2.70); 1.51 (95% CI 1.22–1.87); and 1.71 (95% CI 1.14–2.57) for high-, intermediate-, and low-risk groups, respectively). CONCLUSION ncADT use is not consistent with guideline recommendations and is more frequent among men who are older, have shorter life expectancy, and are less likely to benefit from therapy.
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Affiliation(s)
- Jennifer L. Quon
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale Comprehensive Cancer Center, PO Box 208056 333 Cedar Street, New Haven, CT, USA 06520-8056
| | - James B. Yu
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale Comprehensive Cancer Center, PO Box 208056 333 Cedar Street, New Haven, CT, USA 06520-8056
- Department of Therapeutic Radiology, Yale University School of Medicine, P.O. Box 208040, New Haven, CT, USA 06520-8040
| | - Pamela R. Soulos
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale Comprehensive Cancer Center, PO Box 208056 333 Cedar Street, New Haven, CT, USA 06520-8056
- Section of General Internal Medicine, Yale University School of Medicine, PO Box 208025, New Haven, CT, USA 06520-8025
| | - Cary P. Gross
- Cancer Outcomes, Public Policy, and Effectiveness Research (COPPER) Center, Yale Comprehensive Cancer Center, PO Box 208056 333 Cedar Street, New Haven, CT, USA 06520-8056
- Section of General Internal Medicine, Yale University School of Medicine, PO Box 208025, New Haven, CT, USA 06520-8025
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[Radiotherapy in case of locally advanced prostate cancer: long-term follow-up in 223 patients]. Urologia 2012; 79 Suppl 19:53-7. [PMID: 23371274 DOI: 10.5301/ru.2012.9740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2012] [Indexed: 11/20/2022]
Abstract
AIM OF THE STUDY To evaluate the long-term follow-up in patients undergoing external beam radiotherapy for locally advanced prostate cancer. PATIENTS AND METHODS From November 1999 to January 2007, 223 patients with a histologic diagnosis (204 transperineal needle biopsies; 19 trans-urethral prostatic resections) of locally advanced prostate cancer underwent external beam radiotherapy; of these patients, 151 were T3a (extracapsular extension) and 72 were T3b (involvement of seminal vesicles); the extracapsular extension was demonstrated using pelvic RMN or transrectal ultrasound, while the presence of distant and lymph node metastases was excluded using TC total body or bone scan. PSA value at diagnosis was 29.1 ng/mL (0.4-379 ng/mL). Radiotherapy was used on prostate and seminal vesicles in 201 patients (141 T3a; 60 T3b) while in 22 patients (10 T3a; 12 T3b) it was extended to the pelvis. Biochemical recurrence was defined using ASTRO definition (three consecutive PSA rises after PSA nadir); no patients underwent control prostate needle biopsy for problems of interpretation related to postactinic tissue changes. All complications were recorded and analyzed using Radiation Morbidity Scoring Criteria (RTOG). RESULTS At a mean 55-month follow-up, of the 223 patients treated, 26 have escaped controls, 168 are alive (141 disease-free; 27 with recurrent disease) and 29 died; of this group, 11 patients died from clinical progression, while in the others the cause was not related to the prostatic problem; only one patient died from iatrogenic problems. Hormone treatment was conducted in different ways (neoadjuvant, adjuvant, concurrent to radiotherapy or in association) considering patients' characteristics. Most common complications involved rectum and bladder.
CONCLUSIONS Radiotherapy is a viable and safe method in the treatment of locally advanced prostate cancer; however, it is essential the role of hormone therapy.
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Zapatero A, López-Torrecilla J, Herruzo I, Calvo FA. Practice patterns in the management of prostate cancer in Spain: results from a national survey among radiation oncologists in 2009. Clin Transl Oncol 2012; 15:226-32. [PMID: 22855195 DOI: 10.1007/s12094-012-0913-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 06/07/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Almudena Zapatero
- Department of Radiation Oncology, Health Research Institute IP, Hospital Universitario de la Princesa, Diego de León, 62, 28006, Madrid, Spain.
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Addition of Radiotherapy to Long-Term Androgen Deprivation in Locally Advanced Prostate Cancer: An Open Randomised Phase 3 Trial. Eur Urol 2012; 62:213-9. [DOI: 10.1016/j.eururo.2012.03.053] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 03/23/2012] [Indexed: 11/20/2022]
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Takeda K, Takai Y, Narazaki K, Mitsuya M, Umezawa R, Kadoya N, Fujita Y, Sugawara T, Kubozono M, Shimizu E, Abe K, Shirata Y, Ishikawa Y, Yamamoto T, Kozumi M, Dobashi S, Matsushita H, Chida K, Ishidoya S, Arai Y, Jingu K, Yamada S. Treatment outcome of high-dose image-guided intensity-modulated radiotherapy using intra-prostate fiducial markers for localized prostate cancer at a single institute in Japan. Radiat Oncol 2012; 7:105. [PMID: 22770471 PMCID: PMC3493327 DOI: 10.1186/1748-717x-7-105] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Accepted: 07/02/2012] [Indexed: 11/15/2022] Open
Abstract
Background Several studies have confirmed the advantages of delivering high doses of external beam radiotherapy to achieve optimal tumor-control outcomes in patients with localized prostate cancer. We evaluated the medium-term treatment outcome after high-dose, image-guided intensity-modulated radiotherapy (IMRT) using intra-prostate fiducial markers for clinically localized prostate cancer. Methods In total, 141 patients with localized prostate cancer treated with image-guided IMRT (76 Gy in 13 patients and 80 Gy in 128 patients) between 2003 and 2008 were enrolled in this study. The patients were classified according to the National Comprehensive Cancer Network-defined risk groups. Thirty-six intermediate-risk patients and 105 high-risk patients were included. Androgen-deprivation therapy was performed in 124 patients (88%) for a median of 11 months (range: 2–88 months). Prostate-specific antigen (PSA) relapse was defined according to the Phoenix-definition (i.e., an absolute nadir plus 2 ng/ml dated at the call). The 5-year actuarial PSA relapse-free survival, the 5-year distant metastasis-free survival, the 5-year cause-specific survival (CSS), the 5-year overall survival (OS) outcomes and the acute and late toxicities were analyzed. The toxicity data were scored according to the Common Terminology Criteria for Adverse Events, version 4.0. The median follow-up was 60 months. Results The 5-year PSA relapse-free survival rates were 100% for the intermediate-risk patients and 82.2% for the high-risk patients; the 5-year actuarial distant metastasis-free survival rates were 100% and 95% for the intermediate- and high-risk patients, respectively; the 5-year CSS rates were 100% for both patient subsets; and the 5-year OS rates were 100% and 91.7% for the intermediate- and high-risk patients, respectively. The Gleason score (<8 vs. ≥8) was significant for the 5-year PSA relapse-free survival on multivariate analysis (p = 0.044). There was no grade 3 or 4 acute toxicity. The incidence of grade 2 acute gastrointestinal (GI) and genitourinary (GU) toxicities were 1.4% and 8.5%, respectively. The 5-year actuarial likelihood of late grade 2–3 GI and GU toxicities were 6% and 6.3%, respectively. No grade 4 GI or GU late toxicity was observed. Conclusions These medium-term results demonstrate a good tolerance of high-dose image-guided IMRT. However, further follow-up is needed to confirm the long-term treatment outcomes.
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Affiliation(s)
- Ken Takeda
- Department of Radiological Technology, School of Health Sciences, Faculty of medicine, Tohoku University, Sendai, Japan.
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Association hormonothérapie et radiothérapie dans le cancer de prostate localement avancé. Bull Cancer 2012; 99 Suppl 1:S30-6. [DOI: 10.1684/bdc.2012.1567] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kellokumpu-Lehtinen PL, Hjälm-Eriksson M, Thellenberg-Karlsson C, Åström L, Franzen L, Marttila T, Seke M, Taalikka M, Ginman C. Toxicity in patients receiving adjuvant docetaxel + hormonal treatment after radical radiotherapy for intermediate or high-risk prostate cancer: a preplanned safety report of the SPCG-13 trial. Prostate Cancer Prostatic Dis 2012; 15:303-7. [DOI: 10.1038/pcan.2012.13] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Nishiyama T. Androgen deprivation therapy in combination with radiotherapy for high-risk clinically localized prostate cancer. J Steroid Biochem Mol Biol 2012; 129:179-90. [PMID: 22269996 DOI: 10.1016/j.jsbmb.2011.12.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 12/25/2011] [Accepted: 12/27/2011] [Indexed: 10/14/2022]
Abstract
Androgen deprivation therapy (ADT) has remained the main therapeutic option for patients with advanced prostate cancer (PCa) for about 70 years. Several reports and our findings revealed that aggressive PCa can occur under a low dihydrotestosterone (DHT) level environment where the PCa of a low malignancy with high DHT dependency cannot easily occur. Low DHT levels in the prostate with aggressive PCa are probably sufficient to propagate the growth of the tumor, and the prostate with aggressive PCa can produce androgens from the adrenal precursors more autonomously than that with non-aggressive PCa does under the low testosterone environment with testicular suppression. In patients treated with ADT the pituitary-adrenal axis mediated by adrenocorticotropic hormone has a central role in the regulation of androgen synthesis. Several experimental studies have confirmed the potential benefits from the combination of ADT with radiotherapy (RT). A combination of external RT with short-term ADT is recommended based on the results of phase III randomized trials. In contrast, the combination of RT plus 6 months of ADT provides inferior survival as compared with RT plus 3 years of ADT in the treatment of locally advanced PCa. Notably, randomized trials included patients with diverse risk groups treated with older RT modalities, a variety of ADT scheduling and duration and, importantly, suboptimal RT doses. The use of ADT with higher doses of RT or newer RT modalities has to be properly assessed.
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Affiliation(s)
- Tsutomu Nishiyama
- Division of Urology, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medical and Dental Sciences, Asahimachi 1-757, Niigata 951-8510, Japan.
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Konaka H, Egawa S, Saito S, Yorozu A, Takahashi H, Miyakoda K, Fukushima M, Dokiya T, Yamanaka H, Stone NN, Namiki M. Tri-Modality therapy with I-125 brachytherapy, external beam radiation therapy, and short- or long-term hormone therapy for high-risk localized prostate cancer (TRIP): study protocol for a phase III, multicenter, randomized, controlled trial. BMC Cancer 2012; 12:110. [PMID: 22439742 PMCID: PMC3350387 DOI: 10.1186/1471-2407-12-110] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Accepted: 03/22/2012] [Indexed: 11/10/2022] Open
Abstract
Background Patients with high Gleason score, elevated prostate specific antigen (PSA) level, and advanced clinical stage are at increased risk for both local and systemic relapse. Recent data suggests higher radiation doses decrease local recurrence and may ultimately benefit biochemical, metastasis-free and disease-specific survival. No randomized data is available on the benefits of long-term hormonal therapy (HT) in these patients. A prospective study on the efficacy and safety of trimodality treatment consisting of HT, external beam radiation therapy (EBRT), and brachytherapy (BT) for high-risk prostate cancer (PCa) is strongly required. Methods/Design This is a phase III, multicenter, randomized controlled trial (RCT) of trimodality with BT, EBRT, and HT for high-risk PCa (TRIP) that will investigate the impact of adjuvant HT following BT using iodine-125 (125I-BT) and supplemental EBRT with neoadjuvant and concurrent HT. Prior to the end of September 2012, a total of 340 patients with high-risk PCa will be enrolled and randomized to one of two treatment arms. These patients will be recruited from more than 41 institutions, all of which have broad experience with 125I-BT. Pathological slides will be centrally reviewed to confirm patient eligibility. The patients will commonly undergo 6-month HT with combined androgen blockade (CAB) before and during 125I-BT and supplemental EBRT. Those randomly assigned to the long-term HT group will subsequently undergo 2 years of adjuvant HT with luteinizing hormone-releasing hormone agonist. All participants will be assessed at baseline and every 3 months for the first 30 months, then every 6 months until 84 months from the beginning of CAB. The primary endpoint is biochemical progression-free survival. Secondary endpoints are overall survival, clinical progression-free survival, disease-specific survival, salvage therapy non-adaptive interval, and adverse events. Discussion To our knowledge, there have been no prospective studies documenting the efficacy and safety of trimodality therapy for high-risk PCa. The present RCT is expected to provide additional insight regarding the potency and limitations of the addition of 2 years of adjuvant HT to this trimodality approach, and to establish an appropriate treatment strategy for high-risk PCa. Trial registration UMIN000003992
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Affiliation(s)
- Hiroyuki Konaka
- Department of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Japan.
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