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Messina C, Giunta EF, Signori A, Rebuzzi SE, Banna GL, Maniam A, Buti S, Cattrini C, Fornarini G, Bauckneht M, Greystoke A, Plummer R, Oing C, Rescigno P. Combining PARP Inhibitors and Androgen Receptor Signalling Inhibitors in Metastatic Prostate Cancer: A Quantitative Synthesis and Meta-analysis. Eur Urol Oncol 2024; 7:179-188. [PMID: 37574390 DOI: 10.1016/j.euo.2023.07.013] [Citation(s) in RCA: 3] [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: 03/15/2023] [Revised: 07/13/2023] [Accepted: 07/26/2023] [Indexed: 08/15/2023]
Abstract
CONTEXT PARP inhibitors (PARPi) are established treatments for metastatic castration-resistant prostate cancer (mCRPC) with homologous recombination repair (HRR) deficiency after androgen receptor signalling inhibitor (ARSI) failure. New PARPi + ARSI combinations have been tested in all comers, although their clinical relevance in HRR-proficient tumours remains uncertain. OBJECTIVE To quantitatively synthesise evidence from randomised trials assessing the efficacy and safety of PARPi + ARSI combinations for first-line treatment of mCRPC. EVIDENCE ACQUISITION We searched the PubMed, EMBASE, SCOPUS, and Cochrane Library databases up to February 28, 2023. Randomised controlled trials (RCTs) comparing PARPi + ARSI versus placebo + ARSI for first-line treatment of mCRPC were eligible. Two reviewers independently performed screening and data extraction and assessed the risk of bias, while a third reviewer evaluated the eligibility criteria. EVIDENCE SYNTHESIS Overall, three phase 3 RCTs were included in the systematic review: PROPEL, MAGNITUDE, and TALAPRO-2. A total of 2601 patients with mCRPC were enrolled. Two of these trials (PROPEL and TALAPRO-2) assessed the radiographic progression-free survival benefit of PARPi + ARSI for first-line treatment of mCRPC, independent of HRR status. The pooled hazard ratio was 0.62 (95% confidence interval 0.53-0.72). The pooled hazard ratio for overall survival was 0.84 (95% confidence interval 0.72-0.98), indicating a 16% reduction in the risk of death among patients who received the combination. CONCLUSIONS Results from this meta-analysis support the use of ARSI + PARPi combinations in biomarker-unselected mCRPC. However, such combinations might be less clinically relevant in HRR-proficient cancers, especially considering the change in treatment landscape for mCRPC. PATIENT SUMMARY We looked at outcomes from trials testing combinations of two classes of drugs (PARP inhibitors and ARSI) in advanced prostate cancer. We found that these combinations seem to work regardless of gene mutations identified as biomarkers of response to PARP inhibitors when used on their own.
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Affiliation(s)
| | | | - Alessio Signori
- Section of Biostatistics, Department of Health Sciences, University of Genoa, Genoa, Italy
| | - Sara Elena Rebuzzi
- Medical Oncology Unit, Ospedale San Paolo, Savona, Italy; Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, Italy
| | - Giuseppe Luigi Banna
- Department of Oncology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK; Faculty of Science and Health, School of Pharmacy and Biomedical Science, University of Portsmouth, Portsmouth, UK
| | - Akash Maniam
- Department of Oncology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK
| | - Sebastiano Buti
- Medical Oncology Unit, University Hospital of Parma, Parma, Italy; Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Carlo Cattrini
- SCDU Oncologia, AOU Maggiore della Carità, Novara, Italy
| | - Giuseppe Fornarini
- Medical Oncology Unit 1, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Matteo Bauckneht
- Section of Biostatistics, Department of Health Sciences, University of Genoa, Genoa, Italy; Nuclear Medicine, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Alastair Greystoke
- Translational and Clinical Research Institute, Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK
| | - Ruth Plummer
- Translational and Clinical Research Institute, Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK
| | - Christoph Oing
- Translational and Clinical Research Institute, Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK; Mildred Scheel Cancer Career Centre HaTriCS4, University Cancer Centre Hamburg, University Medical Centre Eppendorf, Hamburg, Germany
| | - Pasquale Rescigno
- Translational and Clinical Research Institute, Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK; Candiolo Cancer Institute FPO-IRCCS, Candiolo, Italy.
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Jones C, Gray S, Brown M, Brown J, McCloskey E, Rai BP, Clarke N, Sachdeva A. Risk of Fractures and Falls in Men with Advanced or Metastatic Prostate Cancer Receiving Androgen Deprivation Therapy and Treated with Novel Androgen Receptor Signalling Inhibitors: A Systematic Review and Meta-analysis of Randomised Controlled Trials. Eur Urol Oncol 2024:S2588-9311(24)00042-7. [PMID: 38383277 DOI: 10.1016/j.euo.2024.01.016] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/25/2023] [Accepted: 01/24/2024] [Indexed: 02/23/2024]
Abstract
CONTEXT The addition of androgen receptor signalling inhibitors (ARSIs) to standard androgen deprivation therapy (ADT) has improved survival outcomes in patients with advanced prostate cancer (PCa). Advanced PCa patients have a higher incidence of osteoporosis, compounded by rapid bone density loss upon commencement of ADT resulting in an increased fracture risk. The effect of treatment intensification with ARSIs on fall and fracture risk is unclear. OBJECTIVE To assess the risk of falls and fractures in men with PCa treated with ARSIs. EVIDENCE ACQUISITION A systematic review of EMBASE, MEDLINE, The Cochrane Library, and The Health Technology Assessment Database for randomised control trials between 1990 and June 2023 was conducted in accordance with Preferred Reporting Items for Systematic Review and Meta-analyses guidance. Risk ratios were estimated for the incidence of fracture and fall events. Subgroup analyses by grade of event and disease state were conducted. EVIDENCE SYNTHESIS Twenty-three studies were eligible for inclusion. Fracture outcomes were reported in 17 studies (N = 18 811) and fall outcomes in 16 studies (N = 16 537). A pooled analysis demonstrated that ARSIs increased the risk of fractures (relative risk [RR] 2.32, 95% confidence interval [CI] 2.00-2.71; p < 0.01) and falls (RR 2.22, 95% CI 1.81-2.72; p < 0.01) compared with control. A subgroup analysis demonstrated an increased risk of both fractures (RR 2.13, 95% CI 1.70-2.67; p < 0.01) and falls (RR 2.19, 95% CI 1.53-3.12; p < 0.0001) in metastatic hormone-sensitive PCa patients, and an increased risk of fractures in the nonmetastatic (RR 2.27, 95% CI 1.60-3.20; p < 0.00001) and metastatic castrate-resistant (RR 2.85, 95% CI 2.16-3.76; p < 0.00001) settings. The key limitations include an inability to distinguish fragility from pathological fractures and potential for a competing risk bias. CONCLUSIONS Addition of an ARSI to standard ADT significantly increases the risk of fractures and falls in men with prostate cancer. PATIENT SUMMARY We found a significantly increased risk of both fractures and falls with a combination of novel androgen signalling inhibitors and traditional forms of hormone therapy.
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Affiliation(s)
- Craig Jones
- The Christie and Salford Royal Hospital NHS Foundation Trusts, Manchester, UK; Genito Urinary Cancer Research Group, Division of Cancer Sciences, University of Manchester, Manchester, UK
| | - Struan Gray
- The Christie and Salford Royal Hospital NHS Foundation Trusts, Manchester, UK; Genito Urinary Cancer Research Group, Division of Cancer Sciences, University of Manchester, Manchester, UK
| | - Michael Brown
- Genito Urinary Cancer Research Group, Division of Cancer Sciences, University of Manchester, Manchester, UK
| | - Janet Brown
- Oncology and Metabolism, University of Sheffield, Sheffield, UK
| | | | - Bhavan P Rai
- Freeman Hospital, Newcastle-upon-Tyne Hospitals NHS Foundation Trust, Newcastle-upon-Tyne, UK
| | - Noel Clarke
- The Christie and Salford Royal Hospital NHS Foundation Trusts, Manchester, UK; Genito Urinary Cancer Research Group, Division of Cancer Sciences, University of Manchester, Manchester, UK
| | - Ashwin Sachdeva
- The Christie and Salford Royal Hospital NHS Foundation Trusts, Manchester, UK; Genito Urinary Cancer Research Group, Division of Cancer Sciences, University of Manchester, Manchester, UK.
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Miyake H, Matsumoto R, Fujimoto K, Mizokami A, Uemura H, Kamoto T, Kawakami S, Nakamura K, Maekawa S, Shibayama K, Watanabe A, Ito M, Tajima Y, Matsuyama H, Uemura H. Clinical Outcomes of Patients with High-risk Metastatic Hormone-naïve Prostate Cancer: A 3-year Interim Analysis of the Observational J-ROCK Study. Eur Urol Oncol 2024:S2588-9311(24)00028-2. [PMID: 38296736 DOI: 10.1016/j.euo.2023.12.013] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/22/2023] [Accepted: 12/29/2023] [Indexed: 02/02/2024]
Abstract
BACKGROUND Androgen deprivation therapy (ADT), administered alone, as combined androgen blockade (CAB) or as ADT plus androgen receptor signalling inhibitors (ARSIs) or ADT plus docetaxel, is the standard treatment for metastatic hormone-naïve prostate cancer (mHNPC) in Japanese real-world practice. OBJECTIVE To investigate treatment patterns and clinical outcomes in LATITUDE criteria high-risk mHNPC. DESIGN, SETTING, AND PARTICIPANTS The longitudinal, multicentre, J-ROCK registry study enrolled patients initiating ADT in Japan after May 2019, and categorised them as cohort 1 (ADT or CAB) or cohort 2 (ADT plus ARSIs or docetaxel). OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Prostate-specific antigen (PSA) response, progression-free survival (PFS), time to castrate-resistant prostate cancer (CRPC), overall survival (OS), and safety were evaluated. PFS, time to CRPC, and OS were estimated via the Kaplan-Meier method and between-cohort comparisons via multivariate Cox regression models. RESULTS AND LIMITATIONS In total, 974 patients were included (cohort 1: 38.1%, cohort 2: 61.9%). CAB was preferred (67.4%) to ADT alone in cohort 1, and abiraterone acetate plus prednisolone was used most frequently in cohort 2 (59.4%). The proportion of patients with ≥50%/≥90% PSA decline or who achieved PSA ≤0.2/≤0.1 ng/ml tended to be higher in cohort 2. PFS (adjusted hazard ratio 0.42; 95% confidence interval [CI] 0.31-0.55), time to CRPC (0.28; 95% CI 0.23-0.36), and OS (0.54; 95% CI 0.35-0.82) were longer in cohort 2. In cohorts 1 and 2, adverse drug reactions of special interest (ADRSIs) occurred in 1.3% and 15.1%, and fatal adverse events occurred in 1.9% and 1.7%, respectively. Limitations included nonrandomised design, varying time since marketing authorisation for ARSIs, and limited safety assessments. CONCLUSIONS ADT plus ARSIs or docetaxel was used more frequently to treat high-risk mHNPC than standard ADT/CAB and was associated with more favourable clinical outcomes. Although ADRSIs were reported more in cohort 2, the safety profile was considered tolerable. PATIENT SUMMARY Although many treatment options are available for high-risk metastatic prostate cancer, there are limited reports on real-world clinical experience with different therapies outside of the clinical trial setting. In this study, we compared clinical and safety outcomes with different treatment regimens, using a large series of patients with high-risk metastatic hormone-naïve prostate cancer across Japan. We found that androgen deprivation therapy in combination with newer androgen receptor signalling inhibitors resulted in improved response compared with androgen deprivation therapy alone or in combination with a first-generation antiandrogen.
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Affiliation(s)
- Hideaki Miyake
- Department of Urology, Hamamatsu University Hospital, Shizuoka, Japan
| | - Rikiya Matsumoto
- Department of Urology, Chutoen General Medical Center, Shizuoka, Japan
| | - Kiyohide Fujimoto
- Department of Urology, Nara Medical University Hospital, Nara, Japan
| | - Atsushi Mizokami
- Department of Urology, Kanazawa University Hospital, Ishikawa, Japan
| | | | - Toshiyuki Kamoto
- Department of Urology, University of Miyazaki Hospital, Miyazaki, Japan
| | - Satoru Kawakami
- Department of Urology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | | | | | - Kazuhiro Shibayama
- Statistics & Decision Sciences Japan, Janssen Pharmaceutical K.K., Tokyo, Japan
| | - Aki Watanabe
- Medical Affairs Operations, Global Development, Janssen R&D, Tokyo, Japan
| | - Miku Ito
- Department of Medical Affairs, Janssen Pharmaceutical K.K., Tokyo, Japan
| | - Yohei Tajima
- Department of Medical Affairs, Janssen Pharmaceutical K.K., Tokyo, Japan
| | | | - Hiroji Uemura
- Department of Urology and Renal Transplantation, Yokohama City University Medical Center, Kanagawa, Japan
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David K, Devos G, Narinx N, Antonio L, Devlies W, Deboel L, Schollaert D, Eisenhauer A, Cavalier E, Vanderschueren D, Claessens F, Joniau S, Decallonne B. Changes in bone and mineral homeostasis after short-term androgen deprivation therapy with or without androgen receptor signalling inhibitor - substudy of a single-centre, double blind, randomised, placebo-controlled phase 2 trial. EBioMedicine 2023; 97:104817. [PMID: 37804569 PMCID: PMC10570709 DOI: 10.1016/j.ebiom.2023.104817] [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: 03/07/2023] [Revised: 09/16/2023] [Accepted: 09/17/2023] [Indexed: 10/09/2023] Open
Abstract
BACKGROUND Prostate cancer (PCa) patients treated with androgen deprivation therapy (ADT) have an increased fracture risk. Exploring biomarkers for early bone loss detection is of great interest. METHODS Pre-planned substudy of the ARNEO-trial (NCT03080116): a double blind, randomised, placebo-controlled phase 2 trial performed in high-risk PCa patients without bone metastases between March 2019 and April 2021. Patients were 1:1 randomised to treatment with gonadotropin-releasing hormone antagonist (degarelix) + androgen receptor signalling inhibitor (ARSI; apalutamide) versus degarelix + matching placebo for 12 weeks prior to prostatectomy. Before and following ADT, serum and 24-h urinary samples were collected. Primary endpoints were changes in calcium-phosphate homeostasis and bone biomarkers. FINDINGS Of the 89 randomised patients, 43 in the degarelix + apalutamide and 44 patients in the degarelix + placebo group were included in this substudy. Serum corrected calcium levels increased similarly in both treatment arms (mean difference +0.04 mmol/L, 95% confidence interval, 0.02; 0.06), and parathyroid hormone and 1,25-dihydroxyvitamin D3 levels decreased. Bone resorption markers increased, and stable calcium isotope ratios reflecting net bone mineral balance decreased in serum and urine similarly in both groups. INTERPRETATION This exploratory substudy suggests that 12 weeks of ADT in non-metastatic PCa patients results in early bone loss. Additional treatment with ARSI does not seem to more negatively influence bone loss in the early phase. Future studies should address if these early biomarkers are able to predict fracture risk, and can be implemented in clinical practice for follow-up of bone health in PCa patients under ADT. FUNDING Research Foundation Flanders; KU Leuven; University-Hospitals-Leuven.
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Affiliation(s)
- Karel David
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium
| | - Gaëtan Devos
- Department of Urology, University Hospitals Leuven, Leuven, Belgium; Urogenital, Abdominal and Plastic Surgery, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Nick Narinx
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Leen Antonio
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium
| | - Wout Devlies
- Department of Urology, University Hospitals Leuven, Leuven, Belgium; Urogenital, Abdominal and Plastic Surgery, Department of Development and Regeneration, KU Leuven, Leuven, Belgium; Molecular Endocrinology, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Ludo Deboel
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Dieter Schollaert
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Anton Eisenhauer
- Geomar Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; Osteolabs GmbH, Kiel, Germany
| | - Etienne Cavalier
- Department of Clinical Chemistry, University of Liège, Liège, Belgium
| | - Dirk Vanderschueren
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium
| | - Frank Claessens
- Molecular Endocrinology, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Steven Joniau
- Department of Urology, University Hospitals Leuven, Leuven, Belgium; Urogenital, Abdominal and Plastic Surgery, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Brigitte Decallonne
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium.
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Beije N, Abida W, Antonarakis ES, Castro E, de Wit R, Fizazi K, Gillessen S, Hussain M, Mateo J, Morris MJ, Olmos D, Sartor O, Sharp A, Sweeney CJ, de Bono JS. PARP Inhibitors for Prostate Cancer: Tangled up in PROfound and PROpel (and TALAPRO-2) Blues. Eur Urol 2023; 84:253-256. [PMID: 37087376 DOI: 10.1016/j.eururo.2023.03.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 03/31/2023] [Indexed: 04/24/2023]
Abstract
The combination of PARP and androgen receptor signalling inhibitors is best reserved for cases for which we expect an overall survival benefit on the basis of disease biology. The data to date should encourage us to perform more, not less, testing for DNA repair defects.
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Affiliation(s)
- Nick Beije
- The Institute of Cancer Research, London, UK; The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - Wassim Abida
- Genitourinary Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Elena Castro
- Department of Medical Oncology, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain
| | - Ronald de Wit
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Karim Fizazi
- Institut Gustave Roussy, University of Paris-Saclay, Villejuif, France
| | - Silke Gillessen
- Istituto Oncologico della Svizzera Italiana, Ente Ospedaliero Cantonale Bellinzona, Bellinzona, Switzerland
| | - Maha Hussain
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL, USA
| | - Joaquin Mateo
- Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Michael J Morris
- Genitourinary Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David Olmos
- Department of Medical Oncology, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain
| | - Oliver Sartor
- Tulane Cancer Center, Tulane University Medical School, New Orleans, LA, USA
| | - Adam Sharp
- The Institute of Cancer Research, London, UK; The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - Christopher J Sweeney
- South Australian Immunogenomics Cancer Institute, University of Adelaide, Adelaide, Australia
| | - Johann S de Bono
- The Institute of Cancer Research, London, UK; The Royal Marsden NHS Foundation Trust, Sutton, UK.
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