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Weber M, Fendler WP, Ravi Kumar AS, Calais J, Czernin J, Ilhan H, Saad F, Kretschmer A, Hekimsoy T, Brookman-May SD, Mundle SD, Small EJ, Smith MR, Perez PM, Hope TA, Herrmann K, Hofman MS, Eiber M, Hadaschik BA. Prostate-specific Membrane Antigen Positron Emission Tomography-detected Disease Extent and Overall Survival of Patients with High-risk Nonmetastatic Castration-resistant Prostate Cancer: An International Multicenter Retrospective Study. Eur Urol 2024; 85:511-516. [PMID: 38490855 DOI: 10.1016/j.eururo.2024.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/20/2023] [Accepted: 01/18/2024] [Indexed: 03/17/2024]
Abstract
Previously, we demonstrated that prostate-specific membrane antigen positron emission tomography (PSMA-PET) revealed distant metastases in 109/200 patients (39% distant nodes, 24% bone, and 6% visceral organ) with nonmetastatic castration-resistant prostate cancer (nmCRPC) and high-risk features (International Society of Urological Pathology score ≥4 and/or prostate-specific antigen doubling time ≤10 mo) without metastases by conventional imaging. However, the impact of disease extent determined by PSMA-PET on patient outcomes is unknown. We followed these 200 patients for a median of 43 mo after PSMA-PET and retrospectively assessed the association between patient characteristics, PSMA-PET findings, treatment management, and outcomes using a Kaplan-Meier model and Cox multivariable regressions. Among assessed disease characteristics, polymetastatic disease (five or more distant lesions on PET) was independently associated with shorter overall survival (OS; median 61 mo vs not reached; hazard ratio [95% confidence interval], 1.81 [1.00-3.27]; p = 0.050) and time to new metastases (median 38 vs 60 mo; 1.80 [1.10-2.96]; p = 0.019), and initial pN1 status with shorter OS (55 mo vs not reached; 1.94 [1.12-3.37]; p = 0.019). Following PSMA-PET, locoregional salvage therapies were used most commonly in no/local disease (58%), and androgen receptor signaling inhibitors were used in distant metastatic disease (51%). PSMA-PET provides additional risk stratification for patients with nmCRPC. Polymetastatic disease (five or more distant lesions) is associated with worse outcomes. PATIENT SUMMARY: A novel sensitive imaging technology, called prostate-specific membrane antigen positron emission tomography (PSMA-PET), allows doctors to detect the spread of prostate cancer, known as distant metastases, earlier and more accurately than in the past. In our study, PSMA-PET detected none to many metastases in patients who were considered free of distant metastasis by conventional imaging. These findings predicted outcomes and were used to select appropriate treatment.
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Affiliation(s)
- Manuel Weber
- Department of Nuclear Medicine, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany
| | - Wolfgang P Fendler
- Department of Nuclear Medicine, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany.
| | - Aravind S Ravi Kumar
- Molecular Imaging and Therapeutic Nuclear Medicine, Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; Prostate Cancer Theranostics and Imaging Centre of Excellence (ProsTIC), Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Jeremie Calais
- University of California Los Angeles, Los Angeles, CA, USA
| | | | - Harun Ilhan
- Department of Nuclear Medicine, Ludwig-Maximilians-University, Munich, Germany
| | - Fred Saad
- Department of Surgery, Université de Montréal, Montréal, QC, Canada
| | - Alexander Kretschmer
- Department of Urology, Ludwig-Maximilians-University, Munich, Germany; Janssen Research & Development, Spring House, PA, USA
| | - Turkay Hekimsoy
- Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Sabine D Brookman-May
- Department of Urology, Ludwig-Maximilians-University, Munich, Germany; Janssen Research & Development, Spring House, PA, USA
| | | | - Eric J Small
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Matthew R Smith
- Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, MA, USA
| | - Paola M Perez
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Thomas A Hope
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
| | - Ken Herrmann
- Department of Nuclear Medicine, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany
| | - Michael S Hofman
- Molecular Imaging and Therapeutic Nuclear Medicine, Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; Prostate Cancer Theranostics and Imaging Centre of Excellence (ProsTIC), Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Matthias Eiber
- Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Boris A Hadaschik
- Department of Urology, University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany
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Bögemann M, Shore ND, Smith MR, Tammela TLJ, Ulys A, Vjaters E, Polyakov S, Jievaltas M, Luz M, Alekseev B, Lebret T, Schostak M, Verholen F, Le Berre MA, Srinivasan S, Ortiz J, Mohamed AF, Sarapohja T, Fizazi K. Efficacy and Safety of Darolutamide in Patients with Nonmetastatic Castration-resistant Prostate Cancer Stratified by Prostate-specific Antigen Doubling Time: Planned Subgroup Analysis of the Phase 3 ARAMIS Trial. Eur Urol 2023; 83:212-221. [PMID: 36089529 DOI: 10.1016/j.eururo.2022.07.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 07/01/2022] [Accepted: 07/22/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Patients with nonmetastatic castration-resistant prostate cancer (nmCRPC) have a high risk of progression to metastatic disease, particularly if their prostate-specific antigen doubling time (PSADT) is ≤6 mo. However, patients remain at a high risk with a PSADT of >6 mo. OBJECTIVE To evaluate the efficacy and safety of darolutamide versus placebo in patients stratified by PSADT >6 or ≤6 mo. DESIGN, SETTING, AND PARTICIPANTS A planned subgroup analysis of a global multicenter, double-blind, randomized, phase 3 trial in men with nmCRPC and PSADT ≤10 mo was conducted. INTERVENTION Patients were randomized 2:1 to oral darolutamide 600 mg twice daily or placebo, while continuing androgen-deprivation therapy. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary endpoint was metastasis-free survival (MFS). Secondary endpoints were overall survival (OS) and times to pain progression, first cytotoxic chemotherapy, and symptomatic skeletal events. Quality of life (QoL) was measured using validated prostate-relevant tools. Safety was recorded throughout the study. RESULTS AND LIMITATIONS Of 1509 patients enrolled, 469 had PSADT >6 mo (darolutamide n = 286; placebo n = 183) and 1040 had PSADT ≤6 mo (darolutamide n = 669; placebo n = 371). Baseline characteristics were balanced between subgroups. Darolutamide significantly prolonged MFS versus placebo in both subgroups (unstratified hazard ratio [95% confidence interval]: PSADT >6 mo, 0.38 [0.26-0.55]; PSADT ≤6 mo, 0.41 [0.33-0.52]). OS and other efficacy and QoL endpoints favored darolutamide with significant improvement over placebo in both subgroups. The incidence of adverse events, including events commonly associated with androgen receptor inhibitors (fractures, falls, hypertension, and mental impairment), and discontinuations due to adverse events were low and similar to placebo. Limitations include small subgroup populations. CONCLUSIONS In patients with nmCRPC and PSADT >6 mo (maximum 10 mo), darolutamide provided a favorable benefit/risk ratio, characterized by significant improvements in MFS, OS, and other clinically relevant endpoints; maintenance of QoL; and favorable tolerability. PATIENT SUMMARY In patients with prostate cancer that has stopped responding to standard hormonal therapy (indicated by an increase in prostate-specific antigen [PSA] levels), there is a risk that the cancer will spread to other parts of the body. This risk is highest when the time it takes for the PSA level to double (ie, "PSA doubling time" [PSADT]) is less than 6 mo. However, there is still a risk that the cancer will spread even if the PSADT is longer than 6 mo. In a group of patients whose PSADT was more than 6 mo but no more than 10 mo, treatment with darolutamide slowed the cancer spread and allowed them to live longer than patients who received placebo (inactive drug). Darolutamide treatment did not cause many side effects and helped maintain patients' quality of life without disruptions.
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Affiliation(s)
- Martin Bögemann
- Department of Urology, Münster University Medical Center, Münster, Germany.
| | - Neal D Shore
- Carolina Urologic Research Center, Atlantic Urology Clinics, Myrtle Beach, SC, USA
| | - Matthew R Smith
- Massachusetts General Hospital Cancer Center, Boston, MA, USA
| | - Teuvo L J Tammela
- Tampere University Hospital and Tampere University, Tampere, Finland
| | - Albertas Ulys
- Institute of Oncology, Vilnius University, Vilnius, Lithuania
| | - Egils Vjaters
- Department of Urology, Pauls Stradins Clinical University Hospital, Riga, Latvia
| | - Sergey Polyakov
- Department of Urology, N.N. Alexandrov National Cancer Centre, Minsk, Belarus
| | - Mindaugas Jievaltas
- Department of Urology, Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
| | - Murilo Luz
- Hospital Erasto Gaertner, Curitiba, Brazil
| | - Boris Alekseev
- Hertsen Moscow Oncology Research Institute, Moscow, Russia
| | | | | | | | | | | | | | | | | | - Karim Fizazi
- Institut Gustave Roussy, University of Paris-Saclay, Villejuif, France
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Pan J, Wei Y, Zhang T, Liu C, Hu X, Zhao J, Gan H, Liu W, Zhu B, Wu J, Wang B, Song S, Ye D, Zhu Y. Stereotactic Radiotherapy for Lesions Detected via 68Ga-Prostate-specific Membrane Antigen and 18F-Fluorodexyglucose Positron Emission Tomography/Computed Tomography in Patients with Nonmetastatic Prostate Cancer with Early Prostate-specific Antigen Progression on Androgen Deprivation Therapy: A Prospective Single-center Study. Eur Urol Oncol 2022; 5:420-427. [PMID: 35304107 DOI: 10.1016/j.euo.2022.02.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/28/2022] [Accepted: 02/25/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Dual-tracer positron emission tomography/computed tomography (PET/CT) with a 68Ga-labelled prostate-specific membrane antigen (PSMA) ligand and 18F-fluorodeoxyglucose (FDG) improves detection of metastatic heterogeneity and burden in patients with nonmetastatic prostate cancer (nmPCa). However, there is limited prospective evidence regarding its impact on the efficacy of stereotactic body radiotherapy (SBRT). OBJECTIVE To evaluate metastasis-free survival (MFS) and toxicity after SBRT to dual-tracer PET/CT-detected metastases in patients with nmPCa and early prostate-specific antigen (PSA) progression on androgen deprivation therapy (ADT; PSA ≤2 ng/ml). DESIGN, SETTING, AND PARTICIPANTS Patients were prospectively screened using dual-tracer PET/CT between April 2019 and October 2020. SBRT was recommended for patients with five or fewer nonvisceral metastases (SBRT group). Patients without detectable metastases (N-/M- group) and those who refused SBRT (ADT group) continued to receive ADT. Patients were followed with conventional imaging. INTERVENTION SBRT to each PET/CT-detected metastasis. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Kaplan-Meier methods were used to determine MFS. Toxicity was evaluated using Common Terminology Criteria for Adverse Event v4.0. RESULTS AND LIMITATIONS Seventy-four consecutive patients were screened. The median PSA and PSA doubling time were 0.59 ng/ml and 4.56 mo, respectively. Overall, 54 patients had metastases and 17 had PSMA-/FDG+ disease. Seven patients were excluded from the MFS analysis, including two with a history of abiraterone treatment and five with more than five metastases. The median follow-up was 21.4 mo. The ADT group had shorter MFS than the SBRT group (11.0 mo vs not reached; hazard ratio [HR] 4.69, 95% confidence interval [CI] 2.92-25.0; p < 0.001) and the N-/M- group (11.0 mo vs not reached; HR 8.78, 95% CI 4.04-40.30; p < 0.001). There was no significant difference in median MFS between the SBRT group and the N-/M- group (p = 0.261). A PSA response >90% was achieved by 86% of patients in the SBRT group. There were no grade ≥3 adverse events after SBRT. The nonrandomized design is the major study limitation. CONCLUSIONS Dual-tracer PET/CT-guided SBRT delivered superior local control rates in comparison to ADT alone and had minimal toxicity. PATIENT SUMMARY We investigated metastasis-targeted radiotherapy for patients with up to five prostate cancer metastases detected with two different radioisotope scans. Our results show that this approach yields promising metastasis-free survival and low toxicity.
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Affiliation(s)
- Jian Pan
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yu Wei
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Tingwei Zhang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Chang Liu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Xiaoxin Hu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Department of Radiology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Jinou Zhao
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hualei Gan
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Wei Liu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Bin Zhu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Junlong Wu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Beihe Wang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shaoli Song
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Dingwei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yao Zhu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
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Saad F, Small EJ, Feng FY, Graff JN, Olmos D, Hadaschik BA, Oudard S, Londhe A, Bhaumik A, Lopez-Gitlitz A, Thomas S, Mundle SD, Chowdhury S, Smith MR. Deep Prostate-specific Antigen Response following Addition of Apalutamide to Ongoing Androgen Deprivation Therapy and Long-term Clinical Benefit in SPARTAN. Eur Urol 2021; 81:184-192. [PMID: 34916086 DOI: 10.1016/j.eururo.2021.11.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 10/29/2021] [Accepted: 11/16/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Apalutamide plus androgen deprivation therapy (ADT) significantly improved metastasis-free survival (MFS), overall survival (OS), and time to prostate-specific antigen (PSA) progression in the placebo-controlled SPARTAN study of high-risk nonmetastatic castration-resistant prostate cancer (nmCRPC). OBJECTIVE To assess the relationships between PSA kinetics, outcomes, and molecular subtypes in SPARTAN. DESIGN, SETTING, AND PARTICIPANTS The authors conducted a post hoc analysis of nmCRPC patients randomized to receive apalutamide (n = 806) or placebo (n = 401) plus ADT and a subset stratified by molecular classifiers. INTERVENTION Apalutamide 240 mg/d. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The association between PSA kinetics and MFS, OS, time to PSA progression, and molecular subtypes was evaluated using the landmark analysis and Kaplan-Meier methods. RESULTS AND LIMITATIONS By 3 mo, PSA decreased in most apalutamide-treated patients and increased in most placebo-treated patients. After apalutamide, the median time to PSA nadir, confirmed ≥50% PSA reduction, ≥90% PSA reduction, and PSA ≤0.2 ng/ml were 7.4, 1.0, 1.9, and 2.8 mo, respectively. By 6 mo, 90%, 57%, and 32% of apalutamide patients had ≥50% PSA reduction, ≥90% PSA reduction, and PSA ≤0.2 ng/ml, respectively, while only 1.5% of placebo patients experienced ≥50% PSA reduction. PSA reductions were observed within 3 mo and up to 12 mo of apalutamide treatment, and were similar across molecular subtypes. Deep PSA responses (≥90% PSA reduction or PSA ≤0.2 ng/ml) at landmark 6-mo apalutamide treatment were significantly associated with improved time to PSA progression (hazard ratio {HR} [95% confidence interval {CI}] 0.25 [0.18-0.33] or 0.13 [0.08-0.21]), MFS (0.41 [0.29-0.57] or 0.3 [0.19-0.47]), and OS (0.45 [0.35-0.59] or 0.26 [0.18-0.38]; p < 0.001 for all). CONCLUSIONS Apalutamide plus ADT produced rapid, deep, and durable PSA responses by 6-mo treatment regardless of assessed molecular prognostic markers. An early PSA response with apalutamide was associated with clinical benefits, supporting prognostic value of PSA monitoring. PATIENT SUMMARY In this report, we describe how prostate-specific antigen (PSA) levels relate to outcomes in patients with nonmetastatic castration-resistant prostate cancer treated with apalutamide plus androgen deprivation therapy (ADT). We found that treatment with apalutamide plus ADT resulted in rapid, deep, and durable PSA responses in the majority of patients, including those with high-risk molecular subtypes, which were associated with improved survival.
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Affiliation(s)
- Fred Saad
- Centre Hospitalier de l'Université de Montréal, Université de Montréal, Montréal, Québec, Canada.
| | - Eric J Small
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
| | - Felix Y Feng
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
| | - Julie N Graff
- VA Portland Health Care System, Portland, OR, USA; Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - David Olmos
- Spanish National Cancer Research Centre (CNIO), Madrid, Spain; Instituto de Investigación Biomédica de Málaga, Málaga, Spain
| | - Boris A Hadaschik
- University of Duisburg-Essen and German Cancer Consortium (DKTK)-University Hospital Essen, Essen, Germany; Ruprecht-Karls-University, Heidelberg, Germany
| | - Stéphane Oudard
- Georges Pompidou Hospital, University of Paris, Paris, France
| | - Anil Londhe
- Janssen Research & Development, Titusville, NJ, USA
| | | | | | - Shibu Thomas
- Janssen Research & Development, Spring House, PA, USA
| | | | - Simon Chowdhury
- Guy's, King's and St. Thomas' Hospitals, Great Maze Pond, London, UK
| | - Matthew R Smith
- Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, MA, USA
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Yokomizo A, Yonese J, Egawa S, Fukuhara H, Uemura H, Nishimura K, Nagata M, Saito A, Lee T, Yamaguchi S, Nonomura N. Real-world use of enzalutamide in men with nonmetastatic castration-resistant prostate cancer in Japan. Int J Clin Oncol 2021; 27:418-426. [PMID: 34779962 PMCID: PMC8816761 DOI: 10.1007/s10147-021-02070-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 10/30/2021] [Indexed: 10/31/2022]
Abstract
BACKGROUND The purpose of the study is to evaluate real-world effectiveness and safety of enzalutamide in men with nonmetastatic castration-resistant prostate cancer (nmCRPC) in Japan. METHODS This was a retrospective evaluation of medical records from men in Japan who started enzalutamide treatment from November 1, 2014, to March 31, 2018, and received androgen deprivation therapy throughout. The primary endpoint was time to prostate-specific antigen (PSA) progression. Secondary endpoints included PSA response rate, time to first use of new antineoplastic therapy, time to first use of cytotoxic chemotherapy, and enzalutamide treatment duration. An exploratory analysis of metastasis-free survival (MFS) was also performed. Adverse events (AEs) were analyzed to assess safety. RESULTS Based on data from medical records of 205 men in Japan, median time to PSA progression was 27 months (95% confidence interval [CI] 19-not reached [NR]), with 82.5% and 52.0% of men achieving PSA response rates of ≥ 50% and ≥ 90%, respectively. Median time to first use of new antineoplastic therapy was 36 months (95% CI 27-NR) and median enzalutamide treatment duration was 13 months (interquartile range: 7-24). Median time to first use of cytotoxic chemotherapy was NR (95% CI 41-NR). Median MFS was 29 months (95% CI 23-35). In total, 51.7% of men experienced AEs, with malaise (18.5%), decreased appetite (10.7%), and nausea (4.9%) the most frequently reported. CONCLUSIONS This is the first study to demonstrate the real-world effectiveness and safety of enzalutamide in men with nmCRPC in Japan, further informing healthcare providers about available treatment options for this patient population.
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Affiliation(s)
- Akira Yokomizo
- Department of Urology, Harasanshin Hospital, 1-8 Taihakumachi, Hakata-ku, Fukuoka, 812-0033, Japan.
| | - Junji Yonese
- Department of Genitourinary Oncology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Shin Egawa
- Department of Urology, Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Hiroshi Fukuhara
- Department of Urology, Kyorin University School of Medicine, 6-20-2, Mitaka, Tokyo, 181-8611, Japan
| | - Hiroji Uemura
- Department of Urology and Renal Transplantation, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan
| | - Kazuo Nishimura
- Department of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan
| | - Masayoshi Nagata
- Department of Urology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Atsushi Saito
- Medical Affairs Japan, Astellas Pharma Inc., 2-5-1 Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411, Japan
| | - Takumi Lee
- Development, Astellas Pharma Inc., 2-5-1 Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411, Japan
| | - Susumu Yamaguchi
- Medical Affairs Japan, Astellas Pharma Inc., 2-5-1 Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411, Japan
| | - Norio Nonomura
- Department of Urology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, 565-0871, Japan
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Oudard S, Hadaschik B, Saad F, Cella D, Basch E, Graff JN, Uemura H, Dibaj S, Li S, Brookman-May SD, De Porre P, Bevans KB, Trudeau JJ, Small EJ, Smith MR. Health-related Quality of Life at the SPARTAN Final Analysis of Apalutamide for Nonmetastatic Castration-resistant Prostate Cancer Patients Receiving Androgen Deprivation Therapy. Eur Urol Focus 2021:S2405-4569(21)00220-0. [PMID: 34479838 DOI: 10.1016/j.euf.2021.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/14/2021] [Accepted: 08/12/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND In SPARTAN, apalutamide improved metastasis-free and overall survival for patients with nonmetastatic castration-resistant prostate cancer (nmCRPC) with a prostate-specific antigen doubling time of ≤10 mo. OBJECTIVE We evaluated health-related quality of life (HRQoL) at the final analysis of the SPARTAN study. INTERVENTION Patients received apalutamide (240 mg/d) or placebo in 28-d cycles. All patients continued androgen deprivation therapy (ADT). DESIGN, SETTING, AND PARTICIPANTS A total of 1207 patients with nmCRPC were randomized 2:1 to apalutamide or placebo. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS HRQoL was assessed using Functional Assessment of Cancer Therapy-Prostate (FACT-P) and EQ-5D-3L questionnaires at day 1 of cycle 1 (predose/baseline), cycles 2-6, every two cycles during cycles 7-13, every four cycles thereafter, at the end of treatment, and every 4 mo after progression to 1 yr. Results are presented using descriptive statistics. A mixed model for repeated measures was fitted to estimate the mean scores at each scheduled visit during treatment. RESULTS At final analysis, with 52 mo follow-up for survival, the median treatment duration was 32.9 mo for apalutamide and 11.5 mo for placebo. Patients had good baseline HRQoL. At each scheduled collection during treatment, >90% per group completed the questionnaires. The change in FACT-P total score from baseline to cycles 21 and 25 significantly favored apalutamide over placebo (p = 0.0138 and 0.0009, respectively). The apalutamide group generally maintained favorable FACT-P (total and subscales) and EQ-5D-3L scores, while placebo scores tended to decline over time (starting in cycles 11-13 and pronounced by cycles 21-25). Notably, patient-reported fatigue did not worsen with apalutamide. Most patients reported being "not at all bothered" by side effects, and bother did not increase over time with apalutamide or placebo. Patients receiving apalutamide had minimal change in side-effect bother following symptomatic adverse events. CONCLUSIONS Final analysis of SPARTAN confirms that HRQoL is preserved in patients with nmCRPC receiving apalutamide plus ADT, but declines in patients receiving placebo plus ADT after approximately 1 yr. PATIENT SUMMARY Responses from patients with prostate cancer who were included in the SPARTAN study indicated that treatment with apalutamide, even after the most extensive follow-up time possible, did not reduce their quality of life. These results, along with improved survival and longer time to the development of metastases (reported separately), confirm the benefits of apalutamide for patients with nonmetastatic castration-resistant prostate cancer.
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Henriquez I, Spratt D, Gómez-Iturriaga A, Abuchaibe O, Couñago F. Nonmetastatic castration-resistant prostate cancer: Novel agents to treat a lethal disease. World J Clin Oncol 2021; 12:6-12. [PMID: 33552935 PMCID: PMC7829629 DOI: 10.5306/wjco.v12.i1.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/01/2020] [Accepted: 12/14/2020] [Indexed: 02/06/2023] Open
Abstract
Nonmetastatic castration-resistant prostate cancer (nmCRPC) - defined as prostate-specific antigen (PSA) > 2 ng/mL, testosterone castration levels < 1.7 nm/L, and the absence of metastatic lesions on conventional imaging (computed tomography or bone scan) - has been defined as a lethal disease by the Prostate Cancer Work Group. One-third of patients with prostate cancer who receive androgen deprivation therapy for biochemical recurrence after local treatment will develop CRPC, with death occurring an average of 2.5 years after diagnosis of castration resistance. Most patients diagnosed with nmCRPC are asymptomatic or minimally symptomatic at diagnosis due to local treatment. In patients with short PSA doubling times (< 10 mo) and high baseline PSA levels, there is a high risk of bone metastases followed by prostate cancer-related mortality. These patients also present significant morbidity that negatively impacts quality of life (QoL). Recently, the results of three randomized trials (PROSPER, SPARTAN, and ARAMIS) were published. Those trials evaluated the efficacy of three different androgen receptor inhibitors - enzalutamide, apalutamide, and darolutamide - in patients with nmCRPC. In all three trials, the study drugs improved both metastasis-free survival and overall survival compared to placebo, plus on-going androgen deprivation therapy without a negative impact on QoL. In patients with nmCRPC, the most important clinical objective is early detection and treatment to maintain a low tumor burden and to prolong the symptom-free interval. For patients with nmCRPC, these novel drugs offer new hope for better QoL and survival outcomes.
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Affiliation(s)
- Ivan Henriquez
- Department of Radiation Oncology, Hospital Universitario Sant Joan, Instituto Investigación Pere i Virgili, Reus 43204, Tarragona, Spain
| | - Daniel Spratt
- Department of Radiation Oncology, Ann Arbor, University of Michigan, Michigan, MI 48109, United States
| | - Alfonso Gómez-Iturriaga
- Department of Radiation Oncology, Hospital Universitario Cruces/Biocruces Health Research Institute, Barakaldo 48903, Bizcaia, Spain
| | - Oscar Abuchaibe
- Department of Radiation Oncology, Virgilio Galvis Ramirez Cancer Centre, Bucaramanga s/n, Santander, Colombia
| | - Felipe Couñago
- Department of Radiation Oncology, Hospital Universitario Quirónsalud Madrid, Pozuelo de Alarcón, Hospital La Luz, Clinical Department, Faculty of Biomedicine, Universidad Europea, Madrid 28223, Spain
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Uemura H, Matsushima H, Kobayashi K, Mizusawa H, Nishimatsu H, Fizazi K, Smith M, Shore N, Tammela T, Tabata KI, Matsubara N, Iinuma M, Uemura H, Oya M, Momma T, Kawakita M, Fukasawa S, Kobayashi T, Kuss I, Le Berre MA, Snapir A, Sarapohja T, Suzuki K. Efficacy and safety of darolutamide in Japanese patients with nonmetastatic castration-resistant prostate cancer: a sub-group analysis of the phase III ARAMIS trial. Int J Clin Oncol 2020; 26:578-590. [PMID: 33226524 PMCID: PMC7895789 DOI: 10.1007/s10147-020-01824-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 10/21/2020] [Indexed: 12/24/2022]
Abstract
Background Darolutamide, an oral androgen receptor inhibitor, has been approved for treating nonmetastatic castration-resistant prostate cancer (nmCRPC), based on significant improvements in metastasis-free survival (MFS) in the ARAMIS clinical trial. Efficacy and safety of darolutamide in Japanese patients are reported here. Methods In this randomized, double-blind, placebo-controlled phase III trial, 1509 patients with nmCRPC and prostate-specific antigen (PSA) doubling time ≤ 10 months were randomized 2:1 to darolutamide 600 mg twice daily or matched placebo while continuing androgen deprivation therapy. The primary endpoint was MFS. Results In Japan, 95 patients were enrolled and randomized to darolutamide (n = 62) or placebo (n = 33). At the primary analysis (cut-off date: September 3, 2018), after 20 primary end-point events had occurred, median MFS was not reached with darolutamide vs. 18.2 months with placebo (HR 0.28, 95% CI 0.11–0.70). Median OS was not reached due to limited numbers of events in both groups but favored darolutamide in the Japanese subgroup. Time to pain progression, time to PSA progression, and PSA response also favored darolutamide. Among Japanese patients randomized to darolutamide vs. placebo, incidences of treatment-emergent adverse events (TEAEs) were 85.5 vs. 63.6%, and incidences of treatment discontinuation due to TEAEs were 8.1 vs. 6.1%. Conclusions Efficacy outcomes favored darolutamide in Japanese patients with nmCRPC, supporting the clinical benefit of darolutamide in this patient population. Darolutamide was well tolerated; however, due to the small sample size, it is impossible to conclude with certainty whether differences in the safety profile exist between Japanese and overall ARAMIS populations. Electronic supplementary material The online version of this article (10.1007/s10147-020-01824-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hiroji Uemura
- Department of Urology and Renal Transplantation, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan.
| | - Hisashi Matsushima
- Department of Urology, Tokyo Metropolitan Police Hospital, 4-22-1 Nakano, Nakano-ku, 164-8541, Japan
| | - Kazuki Kobayashi
- Department of Urology, Yokosuka Kyosai Hospital, 1-16 Yonegahamadori, Yokosuka, 238-8558, Japan
| | - Hiroya Mizusawa
- Department of Urology, National Hospital Organization, Shinshu Ueda Medical Center, 1-27-21 Midorigaoka, Ueda, 386-8610, Japan
| | - Hiroaki Nishimatsu
- Department of Urology, The Fraternity Memorial Hospital, 2-1-11 Yokoami, Sumida-ku, 130-8587, Japan
| | - Karim Fizazi
- Institut Gustave Roussy, 39 Rue Camille Desmoulins, 94805, Villejuif Cedex, France
| | - Matthew Smith
- Massachusetts General Hospital Cancer Center, 55 Fruit Street, Boston, MA, 02114, USA
| | - Neal Shore
- Carolina Urologic Research Center, 823 82nd Parkway, Myrtle Beach, SC, 29572, USA
| | - Teuvo Tammela
- Tampere University Hospital, Urologian poliklinikka, PL 2000, Teiskontie 35, 33521, Tampere, Finland
| | - Ken-Ichi Tabata
- Department of Urology, Kitasato University Hospital, 1-15-1 Kitazato Minami-ku, Sagamihara, 252-0375, Japan
| | - Nobuaki Matsubara
- Department of Breast and Medical Oncology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, 277-8577, Japan
| | - Masahiro Iinuma
- Department of Urology, National Hospital Organization, Mito Medical Center, 280 Sakuranosato Ibarakimachi, Higashiibaraki, 311-3193, Japan
| | - Hirotsugu Uemura
- Department of Urology, Kindai University, 377-2, Onohigashi, Osakasayama, 589-8511, Japan
| | - Mototsugu Oya
- Department of Urology, Keio University, 35 Shinano-machi, Shinjuku-ku, 160-8582, Japan
| | - Tetsuo Momma
- Department of Urology, National Hospital Organization, Saitama National Hospital, 2-1 Suwa, Wako, 351-0102, Japan
| | - Mutsushi Kawakita
- Department of Urology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminamimachi Chuo-ku, Kobe, 650-0047, Japan
| | - Satoshi Fukasawa
- Division of Urology, Chiba Cancer Center, 666-2, Nitona-cho, Chuo-ku, Chiba, 260-8717, Japan
| | - Tadahiro Kobayashi
- Department of Urology, Fukui Prefectural Hospital, 2-8-1 Yotsui, Fukui, 910-8526, Japan
| | - Iris Kuss
- Clinical Statistics, Bayer AG, Building P300, B342, 13342, Berlin, Germany
| | | | - Amir Snapir
- Orion Corporation Orion Pharma, Orionintie 1, P.O. Box 65, FI-02101, Espoo, Finland.,PCI Biotech, Ullernchausseen 64, 0379, Oslo, Norway
| | - Toni Sarapohja
- Orion Corporation Orion Pharma, Orionintie 1, P.O. Box 65, FI-02101, Espoo, Finland
| | - Kazuhiro Suzuki
- Department of Urology, Gunma University, 3-39-15 Showa-machi, Maebashi, 371-8511, Japan
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Smith MR, Saad F, Chowdhury S, Oudard S, Hadaschik BA, Graff JN, Olmos D, Mainwaring PN, Lee JY, Uemura H, De Porre P, Smith AA, Brookman-May SD, Li S, Zhang K, Rooney B, Lopez-Gitlitz A, Small EJ. Apalutamide and Overall Survival in Prostate Cancer. Eur Urol 2020; 79:150-158. [PMID: 32907777 DOI: 10.1016/j.eururo.2020.08.011] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 08/11/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND The phase 3 SPARTAN study evaluated apalutamide versus placebo in patients with nonmetastatic castration-resistant prostate cancer (nmCRPC) and prostate-specific antigen doubling time of ≤10 mo. At primary analysis, apalutamide improved median metastasis-free survival (MFS) by 2 yr and overall survival (OS) data were immature. OBJECTIVE We report the prespecified event-driven final analysis for OS. DESIGN, SETTING, AND PARTICIPANTS A total of 1207 patients with nmCRPC (diagnosed by conventional imaging) were randomised 2:1 to apalutamide (240mg/d) or placebo, plus on-going androgen deprivation therapy. After MFS was met and the study was unblinded, 76 (19%) patients still receiving placebo crossed over to apalutamide. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS OS and time to cytotoxic chemotherapy (TTChemo) were analysed by group-sequential testing with O'Brien-Fleming-type alpha spending function. RESULTS AND LIMITATIONS At median 52-mo follow-up, 428 deaths had occurred. The median treatment duration was 32.9 mo for apalutamide group and 11.5 mo for placebo group. Median OS was markedly longer with apalutamide versus placebo, reaching prespecified statistical significance (73.9 vs 59.9 mo, hazard ratio [HR]: 0.78 [95% confidence interval {CI}, 0.64-0.96]; p=0.016). Apalutamide also lengthened TTChemo versus placebo (HR: 0.63 [95% CI, 0.49-0.81]; p=0.0002). Discontinuation rates in apalutamide and placebo groups due to progressive disease were 43% and 74%, and due to adverse events 15% and 8.4%, respectively. Subsequent life-prolonging therapy was received by 371 (46%) patients in the apalutamide arm and by 338 (84%) patients in the placebo arm including 59 patients who received apalutamide after crossover. Safety was consistent with previous reports; when adverse events were adjusted for treatment exposure, rash had the greatest difference of incidence between the apalutamide and placebo groups. CONCLUSIONS Extension of OS with apalutamide compared with placebo conferred impactful benefit in patients with nmCRPC. There was a 22% reduction in the hazard of death in the apalutamide group despite 19% crossover (placebo to apalutamide) and higher rates of subsequent therapy in the placebo group. PATIENT SUMMARY With data presented herein, all primary and secondary study end points of SPARTAN were met; findings demonstrate the value of apalutamide as a treatment option for nonmetastatic castration-resistant prostate cancer.
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Affiliation(s)
- Matthew R Smith
- Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, MA, USA.
| | - Fred Saad
- Centre Hospitalier de l'Université de Montréal, Université de Montréal, Montréal, Québec, Canada
| | - Simon Chowdhury
- Guy's, King's, and St. Thomas' Hospitals, and Sarah Cannon Research Institute, London, UK
| | - Stéphane Oudard
- Georges Pompidou Hospital, University de Paris, Paris, France
| | - Boris A Hadaschik
- University of Duisburg-Essen, Essen, and Ruprecht-Karls University Heidelberg, Heidelberg, Germany
| | - Julie N Graff
- VA Portland Health Care System, Portland and Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - David Olmos
- Spanish National Cancer Research Centre (CNIO), Madrid and Biomedical Research Institute of Málaga (IBIMA), Spain
| | | | - Ji Youl Lee
- St. Mary's Hospital of Catholic University, Seoul, South Korea
| | - Hiroji Uemura
- Yokohama City University Medical Center, Yokohama, Japan
| | | | | | - Sabine D Brookman-May
- Janssen Research & Development, Los Angeles, CA, USA; Ludwig Maximilians University, Munich, Germany
| | - Susan Li
- Janssen Research & Development, Spring House, PA, USA
| | - Ke Zhang
- Janssen Research & Development, San Diego, CA, USA
| | | | | | - Eric J Small
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
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Uemura H, Satoh T, Tsumura H, Arai G, Imanaka K, Shibayama K, Fujii K, Rooney B, Lopez-Gitlitz A, Espina B, Perez-Ruixo C, Small EJ, Smith M. Efficacy and safety of apalutamide in Japanese patients with nonmetastatic castration-resistant prostate cancer: a subgroup analysis of a randomized, double-blind, placebo-controlled, Phase-3 study. Prostate Int 2020; 8:190-7. [PMID: 33425798 DOI: 10.1016/j.prnil.2020.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 12/03/2022] Open
Abstract
Background In the global Phase-3 Selective Prostate Androgen Receptor Targeting with ARN-509 study, apalutamide plus ongoing androgen deprivation therapy (ADT) significantly increased metastasis-free survival (MFS) and improved other clinical outcomes in men with nonmetastatic castration-resistant prostate cancer (nm-CRPC) who were at high risk of developing metastases. In this subpopulation analysis of Selective Prostate Androgen Receptor Targeting with ARN-509 study, the efficacy and safety of apalutamide plus ADT were evaluated in Japanese patients with nm-CRPC. Methods The primary efficacy end point was MFS. Secondary efficacy end points were time to metastasis, progression-free survival, symptomatic progression, initiation of cytotoxic chemotherapy, and overall survival. Safety and pharmacokinetic parameters were also assessed. Results Fifty-five Japanese patients with ongoing ADT were randomized (apalutamide: n = 34, placebo: n = 21). Median treatment duration was 5.7 months in the apalutamide group and 11.0 months in the placebo group. Median MFS was not reached in the apalutamide group (95% confidence interval: 10.97, not estimable) and was 18.23 months (95% confidence interval: 11.04, 18.50) in the placebo group. Secondary end points were improved in the apalutamide group. The safety profile of apalutamide with ADT was comparable with the global population, and no new safety signals were identified in this Japanese subpopulation. Although, apalutamide exposure tended to be higher in the Japanese subpopulation compared with the non-Japanese population, this was likely to be explained by body weight and considered not clinically meaningful. Conclusion In the Japanese subpopulation, treatment with apalutamide with ADT resulted in favorable efficacy outcomes with comparable benefit-risk profile to the global population with nm-CRPC who are at high-risk of developing metastases.
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11
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Heidegger I, Brandt MP, Heck MM. Treatment of non-metastatic castration resistant prostate cancer in 2020: What is the best? Urol Oncol 2020; 38:129-136. [PMID: 31953000 DOI: 10.1016/j.urolonc.2019.11.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/05/2019] [Accepted: 11/20/2019] [Indexed: 01/21/2023]
Abstract
Lately the development of 3 novel second-generation androgen receptor antagonists (enzalutamide, apalutamide, and darolutamide) chanced the treatment landscape of nonmetastatic castration-resistant prostate cancer. After proofing their clinical efficacy in large phase III registration trials with good compatibilities and tolerable side effects currently all 3 substances are Food and Drug Administration-approved in nonmetastatic castration-resistant prostate cancer. The present short review article provides an overview about these new treatment options and discusses their use in daily routine focusing on patient selection as well as on the impact of novel sensitive imaging modalities like prostate-specific membrane antigen-positron-emission tomography for detection of this stage of disease.
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Affiliation(s)
- Isabel Heidegger
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria.
| | - Maximilian P Brandt
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria; Department of Urology and Pediatric Urology, Mainz University Medicine, Mainz, Germany
| | - Matthias M Heck
- Department of Urology, Technical University of Munich, Munich, Germany
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Mateo J, Fizazi K, Gillessen S, Heidenreich A, Perez-Lopez R, Oyen WJG, Shore N, Smith M, Sweeney C, Tombal B, Tomlins SA, de Bono JS. Managing Nonmetastatic Castration-resistant Prostate Cancer. Eur Urol 2018; 75:285-293. [PMID: 30119985 DOI: 10.1016/j.eururo.2018.07.035] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 07/26/2018] [Indexed: 11/19/2022]
Abstract
CONTEXT Patients with nonmetastatic castration-resistant prostate cancer (nmCRPC) have rising prostate-specific antigen (PSA) and castrate testosterone levels, with no radiological findings of metastatic disease on computed tomography and bone scan. Given recent drug approvals for nmCRPC, with many other therapeutics and imaging modalities being developed, management of nmCRPC is a rapidly evolving field that merits detailed investigation. OBJECTIVE To review current nmCRPC management practices and identify opportunities for improving care of nmCRPC patients. EVIDENCE ACQUISITION A literature search up to July 2018 was conducted, including clinical trials and clinical practice guidelines (National Comprehensive Cancer Network, European Society for Medical Oncology, European Association of Urology, Prostate Cancer Clinical Trials Working Group, Prostate Cancer Radiographic Assessments for Detection of Advanced Recurrence). Keywords included prostate cancer, nonmetastatic, castration resistance, rising PSA, and biochemical relapse. EVIDENCE SYNTHESIS Recommendations regarding indications for, and frequency of, imaging and PSA testing, as well as for initiating systemic therapy in nmCRPC are based on PSA rise kinetics and symptoms. Both enzalutamide and apalutamide have been shown to significantly increase metastasis-free survival in phase III placebo-controlled randomised trials in nmCRPC patients with PSA doubling time (DT) ≤10 mo. The expected impact of new imaging techniques in the assessment of nmCRPC is also reviewed. CONCLUSIONS nmCRPC is a heterogeneous disease; while observation may be an option for some patients, enzalutamide and apalutamide may be appropriate to treat nmCRPC patients with PSA-DT ≤10 mo. The emergence of more accurate imaging modalities as well as circulating tumour biomarker assays will likely redefine the assessment of nmCRPC in the near future. PATIENT SUMMARY Herein, we review key literature and clinical practice guidelines to summarise the optimal management of patients with prostate cancer and rising prostate-specific antigen despite castrate testosterone levels, but with no evidence of distant metastasis on traditional imaging. New drugs are being developed for this disease setting; novel imaging and tumour biomarker blood tests are likely to define this disease state more accurately.
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Affiliation(s)
- Joaquin Mateo
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Karim Fizazi
- Institut Gustave Roussy and University of Paris Sud, Villejuif, France
| | - Silke Gillessen
- Department of Oncology and Hematology, Kantonsspital St. Gallen, Switzerland
| | | | | | - Wim J G Oyen
- The Royal Marsden Hospital and The Institute of Cancer Research, London, UK
| | - Neal Shore
- Carolina Urologic Research Center and Atlantic Urology Clinics, Myrtle Beach, SC, USA
| | - Matthew Smith
- Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | | | | | - Scott A Tomlins
- Michigan Center for Translational Pathology, Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Johann S de Bono
- The Royal Marsden Hospital and The Institute of Cancer Research, London, UK.
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