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Ah-Thiane L, Campion L, Allouache N, Meyer E, Pommier P, Mesgouez-Nebout N, Serre AA, Créhange G, Guimas V, Rio E, Sargos P, Ladoire S, Mahier Ait Oukhatar C, Supiot S. Combination of Abiraterone Acetate, Prostate Bed Radiotherapy, and Luteinizing Hormone-releasing Hormone Agonists in Biochemically Relapsing Patients After Prostatectomy (CARLHA): A Phase 2 Clinical Trial. Eur Urol Oncol 2024:S2588-9311(24)00108-1. [PMID: 38734543 DOI: 10.1016/j.euo.2024.04.014] [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: 02/12/2024] [Revised: 03/26/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024]
Abstract
BACKGROUND The relevance of next-generation hormone therapies and circulating tumor cells (CTCs) are not elucidated in biochemical recurrence after prostatectomy. OBJECTIVE To evaluate the combination of abiraterone acetate plus prednisone (AAP), prostate bed radiotherapy (PBRT), and goserelin in biochemically relapsing men after prostatectomy, and to investigate the utility of CTCs. DESIGN, SETTING, AND PARTICIPANTS In this single-arm multicenter phase 2 trial, 46 biochemically relapsing men were enrolled between December 2012 and January 2019. The median follow-up was 47 mo. INTERVENTION All patients received AAP 1000 mg daily (but 750 mg during PBRT), salvage PBRT, and goserelin. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary outcome was 3-yr biochemical recurrence-free survival (bRFS) when prostate-specific antigen (PSA) levels were ≥0.2 ng/ml. The secondary outcomes included alternative bRFS (alt-bRFS) when PSA levels were ≥0.5 ng/ml and safety assessment. CTC count was assessed. RESULTS AND LIMITATIONS The 3-yr bRFS and alt-bRFS were 81.5% (95% confidence interval or CI [66.4-90.3%]) and 95.6% (95% CI [83.5-98.9%]), respectively. The most common acute radiotherapy-related adverse effect (AE; all grades was pollakiuria (41.3%). The most common late AE (all grades) was urinary incontinence (15.2%). Grade 3-4 acute or late radiotherapy-related AEs were scarce. Most frequent AEs nonrelated to radiotherapy were hot flashes (76%), hypertension (63%), and hepatic cytolysis (50%, of which 20% were of grades 3-4). Of the patients, 11% had a CTC count of ≥5, which was correlated with poorer bRFS (p = 0.042) and alt-bRFS (p = 0.008). The association between CTC count and higher rates of relapse was independent of the baseline PSA level and PSA doubling time (p = 0.42 and p = 0.09, respectively). This study was nonrandomized with a limited number of patients, and few clinical events were reported. CONCLUSIONS Adding AAP to salvage radiation therapy and goserelin resulted in high bRFS and alt-bRFS. AEs remained manageable, although a close liver surveillance is advised. CTC count appears as a promising biomarker for prognosis and predicting response to treatment. PATIENT SUMMARY Our study was a phase 2 clinical trial that exhibited the efficacy and tolerance of a novel androgen-receptor targeting agent (abiraterone acetate plus prednisone) in patients with prostate cancer who experienced rising prostate-specific antigen after radical prostatectomy, in combination with prostate bed radiotherapy. The results also indicated the feasibility and potential value of circulating tumor cell detection, which constitutes a possible advance in managing prostate cancers.
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Affiliation(s)
- Loic Ah-Thiane
- Department of Radiotherapy, ICO Rene Gauducheau, St-Herblain, France
| | - Loic Campion
- Department of Biostatistics, ICO Rene Gauducheau, St-Herblain, France
| | - Nedjla Allouache
- Department of Radiotherapy, Francois Baclesse Center, Caen, France
| | - Emmanuel Meyer
- Department of Radiotherapy, Francois Baclesse Center, Caen, France
| | - Pascal Pommier
- Department of Radiotherapy, Leon Berard Center, Lyon, France
| | | | | | - Gilles Créhange
- Department of Radiotherapy, Georges Francois Leclerc Center, Dijon, France
| | - Valentine Guimas
- Department of Radiotherapy, ICO Rene Gauducheau, St-Herblain, France
| | - Emmanuel Rio
- Department of Radiotherapy, ICO Rene Gauducheau, St-Herblain, France
| | - Paul Sargos
- Department of Radiotherapy, Bergonie Institute, Bordeaux, France
| | - Sylvain Ladoire
- Department of Radiotherapy, Georges Francois Leclerc Center, Dijon, France
| | | | - Stéphane Supiot
- Department of Radiotherapy, ICO Rene Gauducheau, St-Herblain, France; Inserm UMR1232, CNRS ERL 6001, Nantes University, Nantes, France.
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Ohlmann CH. Reply to RE: Should LHRH therapy be continued in patients receiving Abiraterone Acetate? Prostate Cancer Prostatic Dis 2024; 27:155-156. [PMID: 36446944 PMCID: PMC10876472 DOI: 10.1038/s41391-022-00617-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Carsten-Henning Ohlmann
- Johanniter Kliniken Bonn, Johanniterstr. 3-5, 53113, Bonn, Germany.
- Department of Urology and Pediatric Urology, Saarland University, Kirrberger Street 100, 66421, Homburg/Saar, Germany.
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Ah-Thiane L, Sargos P, Chapet O, Jolicoeur M, Terlizzi M, Salembier C, Boustani J, Prevost C, Gaudioz S, Derashodian T, Palumbo S, De Hertogh O, Créhange G, Zilli T, Supiot S. Managing postoperative biochemical relapse in prostate cancer, from the perspective of the Francophone group of Urological radiotherapy (GFRU). Cancer Treat Rev 2023; 120:102626. [PMID: 37734178 DOI: 10.1016/j.ctrv.2023.102626] [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: 06/12/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/23/2023]
Abstract
Up to 50% of patients treated with radical surgery for localized prostate cancer may experience biochemical recurrence that requires appropriate management. Definitions of biochemical relapse may vary, but, in all cases, consist of an increase in a PSA without clinical or radiological signs of disease. Molecular imaging through to positron emission tomography has taken a preponderant place in relapse diagnosis, progressively replacing bone scan and CT-scan. Prostate bed radiotherapy is currently a key treatment, the action of which should be potentiated by androgen deprivation therapy. Nowadays perspectives consist in determining the best combination therapies, particularly thanks to next-generation hormone therapies, but not exclusively. Several trials are ongoing and should address these issues. We present here a literature review aiming to discuss the current management of biochemical relapse in prostate cancer after radical surgery, in lights of recent findings, as well as future perspectives.
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Affiliation(s)
- Loic Ah-Thiane
- Department of Radiation Oncology, ICO René Gauducheau, St-Herblain, France
| | - Paul Sargos
- Department of Radiation Oncology, Bergonie Institute, Bordeaux, France
| | - Olivier Chapet
- Department of Radiation Oncology, CHU Lyon Sud, Pierre-Bénite, France
| | - Marjory Jolicoeur
- Department of Radiation Oncology, Charles Le Moyne Hospital, Montreal, Canada
| | - Mario Terlizzi
- Department of Radiation Oncology, Gustave Roussy Cancer Center, Villejuif, France
| | - Carl Salembier
- Department of Radiation Oncology, Europe Hospitals Brussels, Belgium
| | - Jihane Boustani
- Department of Radiation Oncology, CHU Besançon, Besançon, France
| | - Célia Prevost
- Department of Radiation Oncology, CHU Lyon Sud, Pierre-Bénite, France
| | - Sonya Gaudioz
- Department of Radiation Oncology, CHU Lyon Sud, Pierre-Bénite, France
| | - Talar Derashodian
- Department of Radiation Oncology, Sindi Ahluwalia Hawkins Centre, Kelowna, Canada
| | - Samuel Palumbo
- Department of Radiation Oncology, CHU UCL Namur-Sainte Elisabeth, Namur, Belgium
| | - Olivier De Hertogh
- Department of Radiation Oncology, CHR Verviers East Belgium, Verviers, Belgium
| | - Gilles Créhange
- Department of Radiation Oncology, Curie Institute, Saint-Cloud, France
| | - Thomas Zilli
- Department of Radiation Oncology, Geneva University Hospital, Geneva, Switzerland
| | - Stéphane Supiot
- Department of Radiation Oncology, ICO René Gauducheau, St-Herblain, France.
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Ah-Thiane L, Supiot S. Should LHRH therapy be continued in patients receiving abiraterone acetate? Prostate Cancer Prostatic Dis 2022; 25:798-799. [PMID: 36028658 DOI: 10.1038/s41391-022-00584-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 07/28/2022] [Accepted: 08/15/2022] [Indexed: 01/14/2023]
Affiliation(s)
- Loic Ah-Thiane
- Department of Radiotherapy, ICO René Gauducheau, Boulevard du Professeur Jacques Monod, 44800, St-Herblain, France.
| | - Stéphane Supiot
- Department of Radiotherapy, ICO René Gauducheau, Boulevard du Professeur Jacques Monod, 44800, St-Herblain, France.,CRCI2NA, Inserm UMR1232, CNRS ERL 6001, Nantes University, 44000, Nantes, France
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Cailleteau A, Sargos P, Saad F, Latorzeff I, Supiot S. Drug Intensification in Future Postoperative Radiotherapy Practice in Biochemically-Relapsing Prostate Cancer Patients. Front Oncol 2022; 11:780507. [PMID: 35004302 PMCID: PMC8739777 DOI: 10.3389/fonc.2021.780507] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/30/2021] [Indexed: 12/26/2022] Open
Abstract
Although salvage prostate bed radiotherapy is highly effective in biochemically-relapsing prostate cancer patients following prostatectomy, relapses remain frequent and improvements are needed. Randomized phase 3 trials have shown the benefit of adding androgen-depriving therapy to irradiation, but not all patients benefit from this combination. Preclinical studies have shown that novel agents targeting the androgen receptor, DNA repair, PI3K/AKT/mTOR pathways, or the hypoxic microenvironment may help increase the response to prostate bed irradiation while minimizing potential side effects. This perspective review focuses on the most relevant molecules that may have an impact when combined with salvage radiotherapy, and underlines the strategies that need to be developed to increase the efficacy of salvage post-prostatectomy radiotherapy in prostate cancer patients.
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Affiliation(s)
- Axel Cailleteau
- Department of Radiation Oncology, Institut de Cancérologie de l'Ouest, Nantes Saint-Herblain, France
| | - Paul Sargos
- Department of Radiation Oncology, Institut Bergonié, Bordeaux, France
| | - Fred Saad
- Department of Urology, Université de Montréal, Montreal, QC, Canada
| | - Igor Latorzeff
- Department of Radiation Oncology, Oncorad Clinique Pasteur, Toulouse, France
| | - Stéphane Supiot
- Department of Radiation Oncology, Institut de Cancérologie de l'Ouest, Nantes Saint-Herblain, France.,University of Nantes, CRCINA (CNRS, Inserm), Nantes, France
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Patrikidou A, Zilli T, Baciarello G, Terisse S, Hamilou Z, Fizazi K. Should androgen deprivation therapy and other systemic treatments be used in men with prostate cancer and a rising PSA post-local treatments? Ther Adv Med Oncol 2021; 13:17588359211051870. [PMID: 34707693 PMCID: PMC8543684 DOI: 10.1177/17588359211051870] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 09/20/2021] [Indexed: 12/24/2022] Open
Abstract
Biochemical recurrence is an evolving space in prostate cancer, with increasing multidisciplinary involvement. Androgen deprivation therapy has shown proof of its value in complementing salvage radiotherapy in high-risk biochemical relapsing patients; ongoing trials aim to further refine this treatment combination. As systemic treatments, and notably next-generation androgen receptor targeted agents, have moved towards early hormone-sensitive and non-metastatic stages, the prostate specific antigen (PSA)-relapse disease stage will be undoubtedly challenged by future evidence from such ongoing clinical trials. With the use of modern imaging and newer molecular technologies, including integration of tumoral genomic profiling and liquid biopsies in risk stratification, a path towards a precision oncology-focused approach will become a reality to guide in the future decisions for patients with a diagnosis of biochemical recurrence.
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Affiliation(s)
- Anna Patrikidou
- Department of Medical Oncology, Gustave Roussy Institute, Paris Saclay University, 114 rue Edouard Vaillant, Villejuif, 94800, FranceUCL Cancer Institute & University College London Hospital, London, United Kingdom
| | - Thomas Zilli
- Department of Radiation Oncology, Geneva University Hospital and Faculty of Medicine, Geneva University, Geneva, Switzerland
| | | | - Safae Terisse
- Department of Medical Oncology, Saint Louis Hospital, Paris, France
| | - Zineb Hamilou
- Centre Hospitalier de l’Université de Montréal, Montreal, QC, Canada
| | - Karim Fizazi
- Department of Medical Oncology, Gustave Roussy Institute, Paris Saclay University, 114 rue Edouard Vaillant, Villejuif, 94800, France
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Onal C, Kose F, Ozyigit G, Aksoy S, Oymak E, Muallaoglu S, Guler OC, Tilki B, Hurmuz P, Akyol F. Stereotactic body radiotherapy for oligoprogressive lesions in metastatic castration-resistant prostate cancer patients during abiraterone/enzalutamide treatment. Prostate 2021; 81:543-552. [PMID: 33905131 DOI: 10.1002/pros.24132] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/30/2021] [Accepted: 04/11/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Metastasis-directed therapy (MDT) utilizing stereotactic body radiotherapy (SBRT) for oligoprogressive lesions could provide a delay in next-line systemic treatment (NEST) change while undergoing androgen receptor-targeted agents (ARTA) treatment. We evaluated prognostic factors for prostate cancer-specific survival (PCSS) and progression-free survival (PFS) to characterize patients receiving treatment with ARTA who may benefit from MDT for oligoprogressive lesions. The impact of MDT on delaying NEST and the predictive factors for NEST-free survival (NEST-FS) were also assessed. MATERIALS AND METHODS The clinical data of 54 metastatic castration-resistant prostate cancer patients with 126 oligoprogressive lesions receiving abiraterone (1 g/day) or enzalutamide (160 mg/day) before or after systemic chemotherapy were analyzed. A median of three lesions (range: 1-5) were treated with MDT. The primary endpoints were PCSS and PFS. The secondary endpoints were time to switch to NEST and NEST-FS. RESULTS The median follow-up time was 19.1 months. Univariate analysis showed that the number of oligoprogressive lesions treated with SBRT and the time between the start of ARTA treatment and oligoprogression were significant prognostic factors for PCSS, and the timing of ARTA treatment (before or after chemotherapy) and the prostate-specific antigen (PSA) response after MDT were significant prognostic factors for PFS. Multivariate analysis showed that early MDT for oligoprogressive lesions delivered less than 6 months after the beginning of ARTA and higher PSA levels after MDT were significant predictors of worse PCSS and PFS. The median total duration of ARTA treatment was 13.8 months. The median time between the start of ARTA treatment and the start of MDT for oligoprogressive lesions was 5.2 months, and MDT extended the ARTA treatment by 8.6 months on average. Thirty-two (59.3%) patients continued ARTA treatment after MDT. ARTA treatment after chemotherapy, early oligoprogression requiring MDT, and lower radiation doses for MDT were independent predictors of NEST-FS in multivariate analysis. CONCLUSIONS MDT for oligoprogressive lesions is effective and may provide several benefits compared to switching from ARTA treatment to NEST. Patients with early progression while on ARTAs and inadequate PSA responses after MDT have a greater risk of rapid disease progression and poor survival, which necessitates intensified treatment.
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Affiliation(s)
- Cem Onal
- Department of Radiation Oncology, Faculty of Medicine, Baskent University, Adana Dr. Turgut Noyan Research and Treatment Center, Adana, Turkey
| | - Fatih Kose
- Division of Medical Oncology, Faculty of Medicine, Baskent University, Adana Dr. Turgut Noyan Research and Treatment Center, Adana, Turkey
| | - Gokhan Ozyigit
- Department of Radiation Oncology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Sercan Aksoy
- Division of Medical Oncology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ezgi Oymak
- Division of Radiation Oncology, Iskenderun Gelisim Hospital, Iskenderun, Hatay, Turkey
| | - Sadik Muallaoglu
- Division of Medical Oncology, Iskenderun Gelisim Hospital, Iskenderun, Hatay, Turkey
| | - Ozan C Guler
- Department of Radiation Oncology, Faculty of Medicine, Baskent University, Adana Dr. Turgut Noyan Research and Treatment Center, Adana, Turkey
| | - Burak Tilki
- Department of Radiation Oncology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Pervin Hurmuz
- Department of Radiation Oncology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Fadil Akyol
- Department of Radiation Oncology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Next Generation of Androgen Deprivation Therapy Combined With Radiotherapy for N0 M0 Prostate Cancer. ACTA ACUST UNITED AC 2021; 26:21-28. [PMID: 31977381 DOI: 10.1097/ppo.0000000000000428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Androgen deprivation therapy in combination with definitive radiation therapy is a standard of care for both intermediate-/high-risk localized prostate, locally advanced prostate cancer. Newer hormonal therapies have shown promising results in patients with castration-resistant disease and are now being investigated in early stages, in combination with radiation therapy. In this section, we review the body of evidence elucidating the mechanism of synergy and immune modulation effect of androgen deprivation therapy and radiation therapy, summarize the pivotal studies supporting its use in the nonmetastatic setting, and present the ongoing studies who will likely shape the management of locally advanced disease, in the upcoming years.
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Schmidt Hegemann NS, Rogowski P, Eze C, Schäfer C, Stief C, Lang S, Spohn S, Steffens R, Li M, Gratzke C, Schultze-Seemann W, Ilhan H, Fendler WP, Bartenstein P, Ganswindt U, Buchner A, Grosu AL, Belka C, Meyer PT, Kirste S, Zamboglou C. Outcome After 68Ga-PSMA-11 versus Choline PET-Based Salvage Radiotherapy in Patients with Biochemical Recurrence of Prostate Cancer: A Matched-Pair Analysis. Cancers (Basel) 2020; 12:cancers12113395. [PMID: 33207785 PMCID: PMC7698293 DOI: 10.3390/cancers12113395] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 12/20/2022] Open
Abstract
The purpose of this analysis was primarily to analyze biochemical-recurrence free survival (BRFS) after positron emission tomography (PET)-guided salvage radiotherapy (sRT) in a large cohort, and to further compare BRFS after PSMA vs. choline PET/ computer tomography (CT)-based sRT. This retrospective analysis is based on 421 patients referred for PSMA or choline PET/CT after radical prostatectomy due to biochemically recurrent or persistent disease. BRFS (PSA: 0.2 ng/mL) was defined as the study endpoint. Cox regression analyses were performed to assess the impact of different clinical parameters on BRFS. Additionally, propensity score matching was performed to adjust patient cohorts (PSMA vs. choline PET/CT-based sRT). The median follow-up time was 30 months. BRFS at three years after sRT was 58%. In the multivariate analysis, only PSA before PET imaging and PSA before sRT were significantly associated with BRFS (p < 0.05). After propensity score matching, 272 patients were further analyzed; there was no significant difference in three-year BRFS between patients with PSMA PET-based vs. choline PET-based sRT (55% vs. 63%, p = 0.197). The present analysis confirmed the overall high BRFS rates after PET-based sRT and the strong prognostic effect of PSA level prior to sRT. PSMA PET-based sRT did not have superior BRFS rates when compared with choline PET-based sRT.
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Affiliation(s)
- Nina-Sophie Schmidt Hegemann
- Department of Radiation Oncology, University Hospital, 81377 LMU Munich, Germany; (N.-S.S.H.); (P.R.); (C.E.); (C.S.); (R.S.); (M.L.); (C.B.)
| | - Paul Rogowski
- Department of Radiation Oncology, University Hospital, 81377 LMU Munich, Germany; (N.-S.S.H.); (P.R.); (C.E.); (C.S.); (R.S.); (M.L.); (C.B.)
| | - Chukwuka Eze
- Department of Radiation Oncology, University Hospital, 81377 LMU Munich, Germany; (N.-S.S.H.); (P.R.); (C.E.); (C.S.); (R.S.); (M.L.); (C.B.)
| | - Christian Schäfer
- Department of Radiation Oncology, University Hospital, 81377 LMU Munich, Germany; (N.-S.S.H.); (P.R.); (C.E.); (C.S.); (R.S.); (M.L.); (C.B.)
| | - Christian Stief
- Department of Urology, University Hospital, 81377 LMU Munich, Germany; (C.S.); (A.B.)
| | - Sebastian Lang
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.L.); (S.S.); (A.-L.G.); (S.K.)
| | - Simon Spohn
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.L.); (S.S.); (A.-L.G.); (S.K.)
| | - Rieke Steffens
- Department of Radiation Oncology, University Hospital, 81377 LMU Munich, Germany; (N.-S.S.H.); (P.R.); (C.E.); (C.S.); (R.S.); (M.L.); (C.B.)
| | - Minglun Li
- Department of Radiation Oncology, University Hospital, 81377 LMU Munich, Germany; (N.-S.S.H.); (P.R.); (C.E.); (C.S.); (R.S.); (M.L.); (C.B.)
| | - Christian Gratzke
- Department of Urology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (C.G.); (W.S.-S.)
| | - Wolfgang Schultze-Seemann
- Department of Urology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (C.G.); (W.S.-S.)
| | - Harun Ilhan
- Department of Nuclear Medicine, University Hospital, 81377 LMU Munich, Germany; (H.I.); (P.B.)
| | - Wolfgang Peter Fendler
- Department of Nuclear Medicine, University of Duisburg-Essen, 47057 Essen, Germany;
- German Cancer Consortium (DKTK), University Hospital Essen, 45147 Essen, Germany
| | - Peter Bartenstein
- Department of Nuclear Medicine, University Hospital, 81377 LMU Munich, Germany; (H.I.); (P.B.)
| | - Ute Ganswindt
- Department of Therapeutic Radiology and Oncology, Innsbruck Medical University, 6020 Innsbruck, Austria;
| | - Alexander Buchner
- Department of Urology, University Hospital, 81377 LMU Munich, Germany; (C.S.); (A.B.)
| | - Anca-Ligia Grosu
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.L.); (S.S.); (A.-L.G.); (S.K.)
- German Cancer Consortium (DKTK), Partner Site Freiburg, 79106 Freiburg, Germany
| | - Claus Belka
- Department of Radiation Oncology, University Hospital, 81377 LMU Munich, Germany; (N.-S.S.H.); (P.R.); (C.E.); (C.S.); (R.S.); (M.L.); (C.B.)
- German Cancer Consortium (DKTK), Partner Site Munich, 81377 Munich, Germany
| | - Philipp Tobias Meyer
- Department of Nuclear Medicine, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany;
| | - Simon Kirste
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.L.); (S.S.); (A.-L.G.); (S.K.)
| | - Constantinos Zamboglou
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (S.L.); (S.S.); (A.-L.G.); (S.K.)
- German Cancer Consortium (DKTK), Partner Site Freiburg, 79106 Freiburg, Germany
- Bertha-Ottenstein-Programme, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
- Correspondence: ; Tel.: +49-761-2709-4610; Fax: +49-761-2709-4720
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Kucharczyk MJ, Tsui JMG, Khosrow-Khavar F, Bahoric B, Souhami L, Anidjar M, Probst S, Chaddad A, Sargos P, Niazi T. Combined Long-Term Androgen Deprivation and Pelvic Radiotherapy in the Post-operative Management of Pathologically Defined High-Risk Prostate Cancer Patients: Results of the Prospective Phase II McGill 0913 Study. Front Oncol 2020; 10:312. [PMID: 32226774 PMCID: PMC7080953 DOI: 10.3389/fonc.2020.00312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 02/21/2020] [Indexed: 11/24/2022] Open
Abstract
Purpose: Following radical prostatectomy, prostate bed radiotherapy (PBRT) has been combined with either long-term androgen deprivation therapy (LT-ADT) or short-term ADT with pelvic lymph node radiotherapy (PLNRT) to provide an oncological benefit in randomized trials. McGill 0913 was designed to characterize the efficacy of combining PBRT, PLNRT, and LT-ADT. It is the first study to do so prospectively. Methods: In a single arm phase II trial conduced from 2010 to 2016, 46 post-prostatectomy prostate cancer patients at a high-risk for relapse (pathological Gleason 8+ or T3) were assessed for treatment with combined LT-ADT (24 months), PBRT, and PLNRT. Patients received PLNRT and PBRT (44 Gy in 22 fractions) followed by a PBRT boost (22 Gy in 11 fractions). The primary endpoint was progression-free survival (PFS). Toxicity and quality of life (QoL) were evaluated using CTCAE V3.0 and EQ-5D-3L questionnaires, respectively. Results: Among the 43 patients were treated as per protocol, median PSA was 0.30 μg/L. On surgical pathology, 51% had positive margins, 40% had Gleason 8+ disease, 42% had seminal vesicle involvement, and 19% had lymph node involvement. At a median follow-up of 5.2 years, there were no deaths or clinical progression. At 5 years, PFS was 78.0% (95% Confidence Interval 63.7–95.5%). Not including erectile dysfunction, patients experienced: 14% grade 2 endocrine toxicity while on ADT, one incident of long-term gynecomastia, 5% grade 2 acute urinary toxicity, 5% grade 2 late Urinary toxicity, and 24% long-term hypogonadism. No comparison between the average or minimum self-reported QoL at baseline, during ADT, nor after ADT demonstrated a statistically significant difference. Conclusions: Combining PBRT, PLNRT, and LT-ADT had an acceptable PFS in patients with significant post-operative risk factors for recurrence. While therapy was well-tolerated, long-term hypogonadism was a substantial risk. Further investigations are needed to determine if this combination is beneficial. Trial registration: NCT01255891.
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Affiliation(s)
- Michael Jonathan Kucharczyk
- Department of Radiation Oncology and Radiation Physics, Nova Scotia Cancer Centre, Dalhousie University, Halifax, NS, Canada.,Department of Radiation Oncology, Jewish General Hospital, Montreal, QC, Canada
| | - James Man Git Tsui
- Department of Radiation Oncology, McGill University Health Centre, Montreal, QC, Canada
| | | | - Boris Bahoric
- Department of Radiation Oncology, Jewish General Hospital, Montreal, QC, Canada
| | - Luis Souhami
- Department of Radiation Oncology, McGill University Health Centre, Montreal, QC, Canada
| | - Maurice Anidjar
- Department of Urology, Jewish General Hospital, Montreal, QC, Canada
| | - Stephan Probst
- Department of Nuclear Medicine, Jewish General Hospital, Montreal, QC, Canada
| | - Ahmad Chaddad
- Department of Radiation Oncology, Jewish General Hospital, Montreal, QC, Canada.,School of Artificial Intelligence, GUET, Guilin, China
| | - Paul Sargos
- Département de radiothérapie, Institut Bergonie, Bordeaux, France
| | - Tamim Niazi
- Department of Radiation Oncology, Jewish General Hospital, Montreal, QC, Canada
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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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