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Wang Y, Gui H, Wang J, Tian J, Wang H, Liang C, Hao Z, Rodriguez R, Wang Z. Comparative Efficacy of Combined Radiotherapy, Systemic Therapy, and Androgen Deprivation Therapy for Metastatic Hormone-Sensitive Prostate Cancer: A Network Meta-Analysis and Systematic Review. Front Oncol 2020; 10:567616. [PMID: 33194648 PMCID: PMC7606969 DOI: 10.3389/fonc.2020.567616] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/18/2020] [Indexed: 01/28/2023] Open
Abstract
Background: Recent randomized clinical trials have examined the efficacy of different combinations of systemic and local treatment approaches for metastatic hormone-sensitive prostate cancer (mHSPC). We compared the efficacy of these combined regimens in order to identify the optimal therapy for specific patient subgroups. Methods: The treatments were abiraterone (ABI), apalutamide (APA), docetaxel (DOC), enzalutamide (ENZ), and radiotherapy (RT) combined with androgen-deprivation therapy (ADT). Five electronic databases were searched up to May 7, 2020 for relevant trials. The risk of bias in the included trials was evaluated with the Cochrane tool. The hazard ratio (HR) with 95% confidence interval (CI) was determined for the included trials and indirect comparisons were performed using the R software. Results: In total, 10 randomized, controlled trials with 11,194 patients were included in the meta-analysis. ADT + RT was superior to ADT monotherapy in terms of overall survival (HR = 0.96, 95% CI: 0.85-1.1) and conferred a survival benefit in a subgroup of low-volume patients (HR = 0.68, 95% CI: 0.54-0.87). Combined systemic treatments were significantly superior to ADT monotherapy in comparisons of survival and prostate-specific antigen response, including in the high-volume subgroup; meanwhile, in the low-volume subgroup only ADT + ENZ (HR = 0.38, 95% CI 0.21-0.69) showed a significant clinical benefit. In the Gleason score <8 subgroup, all combined systemic treatments were superior to ADT monotherapy, but the results were only significant for ADT + APA (HR = 0.56, 95% CI: 0.33-0.95) and ADT + DOC (HR = 0.71, 95% CI: 0.54-0.92). In the Gleason score ≥8 subgroup, ADT monotherapy was inferior (albeit not significantly) to combined treatments. In a ranking of performed comparisons, ADT + ENZ was the optimal regimen, although this was non-significant. Combined therapies also demonstrated superiority in quality-of-life indicators such as time to skeletal events and pain progression. Conclusion: ADT + radiotherapy led to superior outcomes in mHSPC patients with low-volume disease. While all combined systemic regimens confer a survival advantage over ADT monotherapy, the optimal treatment approach for certain mHSPC patient subgroups remains to be determined.
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Affiliation(s)
- Yuhan Wang
- Key Laboratory of Urological Diseases in Gansu Province, Department of Urology, Gansu Nephro-Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Huiming Gui
- Key Laboratory of Urological Diseases in Gansu Province, Department of Urology, Gansu Nephro-Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Juan Wang
- Key Laboratory of Urological Diseases in Gansu Province, Department of Urology, Gansu Nephro-Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Junqiang Tian
- Key Laboratory of Urological Diseases in Gansu Province, Department of Urology, Gansu Nephro-Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Hanzhang Wang
- Department of Urology, The University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zongyao Hao
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ronald Rodriguez
- Department of Urology, The University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Zhiping Wang
- Key Laboratory of Urological Diseases in Gansu Province, Department of Urology, Gansu Nephro-Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
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Febrile neutropenia (FN) rates in metastatic hormone sensitive prostate cancer: the role of antibiotics as primary prophylaxis. Prostate Cancer Prostatic Dis 2020; 24:166-168. [PMID: 32709977 DOI: 10.1038/s41391-020-0261-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/03/2020] [Accepted: 07/17/2020] [Indexed: 11/08/2022]
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Ng K, Smith S, Shamash J. Metastatic Hormone-Sensitive Prostate Cancer (mHSPC): Advances and Treatment Strategies in the First-Line Setting. Oncol Ther 2020; 8:209-230. [PMID: 32700045 PMCID: PMC7683690 DOI: 10.1007/s40487-020-00119-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Indexed: 12/14/2022] Open
Abstract
The treatment landscape of metastatic hormone-sensitive prostate cancer (mHSPC) has changed radically in recent years. Androgen deprivation therapy (ADT) alone was for decades the standard of care for treating mHSPC. This changed when studies showed that the addition of docetaxel chemotherapy or abiraterone acetate to ADT significantly increases overall survival of patients with mHSPC, followed by more recent evidence showing the efficacy of androgen receptor antagonists, such as enzalutamide and apalutamide, in this setting. While this rapid therapeutic evolution is welcome, it presents clinicians with a crucial challenge: the choice of treatment selection and sequencing. In the first-line setting there are no comparative data currently available to guide treatment choice between the different available regimens, and no prospective data to guide clinical decision after progression. Decisions on treatment will now need to be personalised based on indirect comparison of the available efficacy data from multiple phase 3 studies, together with considerations of disease volume, comorbidities, treatment aims, toxicity profile and cost reimbursement within the healthcare setting. Here, we provide an overview of the clinical trial data to date and propose some biological and clinical insights which may be helpful in making decisions on treatment selection and sequencing.
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Affiliation(s)
- Kenrick Ng
- Department of Medical Oncology, St Bartholomew's Hospital, London, UK. .,UCL Cancer Institute, University College London, 72 Huntley Street, London, UK.
| | - Shievon Smith
- Department of Medical Oncology, St Bartholomew's Hospital, London, UK
| | - Jonathan Shamash
- Department of Medical Oncology, St Bartholomew's Hospital, London, UK
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Kushnir I, Mallick R, Ong M, Canil C, Bossé D, Koczka K, Reaume NM. Docetaxel dose-intensity effect on overall survival in patients with metastatic castrate-sensitive prostate cancer. Cancer Chemother Pharmacol 2020; 85:863-868. [PMID: 32240336 DOI: 10.1007/s00280-020-04063-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 03/20/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Several studies assessed the association of docetaxel dose intensity (DI) and efficacy in metastatic castrate-resistant prostate cancer (mCRPC) patients with contradicting conclusions. In this retrospective analysis, we will assess whether the docetaxel DI used in patients with metastatic castrate-sensitive prostate cancer (mCSPC) is associated with overall survival (OS). METHODS All patients with mCSPC treated at The Ottawa Hospital Cancer Centre that received docetaxel chemotherapy between June 2014 and September 2017 were identified. The association between relative dose intensity (RDI) and OS was assessed using univariate and multivariable Cox model adjusting for age, Gleason score, burden of disease, visceral involvement, de novo metastases and baseline prostate-specific antigen (PSA). RESULTS Eighty-one patients were included in the analysis. Only 35 patients (43%) were able to complete the planned treatment with a RDI of at least 90%. On a univariate analysis, higher RDI and number of cycles of docetaxel received were associated with longer OS. For every 10% decrease in RDI, the risk of death increased by 23% (HR 1.23, 95% CI 1.09-1.4, P = 0.001). For every increment of one cycle (and up to six), the risk of death decreased by 27% (HR 0.73, 95% CI 0.61-0.88, P = 0.001). On multivariate analysis, reduced RDI was the only predictor significantly associated with OS (HR 1.18, 95% CI 1.02-1.36, P = 0.026). CONCLUSIONS Our study suggests that in mCSPC, reduced docetaxel RDI is associated with shorter survival. Unnecessary dose reductions, treatment delays and early discontinuation should be avoided. Granulocyte colony-stimulating factor may be considered to maintain standard DI.
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Affiliation(s)
- Igal Kushnir
- The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, ON, Canada. .,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | | | - Michael Ong
- The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, ON, Canada
| | - Christina Canil
- The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, ON, Canada
| | - Dominick Bossé
- The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, ON, Canada
| | - Kim Koczka
- The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, ON, Canada
| | - Neil M Reaume
- The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, ON, Canada
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The timing of docetaxel initiation in metastatic castrate-sensitive prostate cancer and the rate of chemotherapy-induced toxicity. Med Oncol 2019; 36:18. [PMID: 30666463 DOI: 10.1007/s12032-018-1238-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 12/10/2018] [Indexed: 01/04/2023]
Abstract
Docetaxel pharmacokinetics are affected by androgen deprivation therapy (ADT), which is attributed to changes in liver metabolism induced by castration. In this retrospective analysis, we assessed whether initiating docetaxel treatment in close proximity to the start of ADT therapy for metastatic castrate-sensitive prostate cancer (mCSPC) is associated with more treatment-related toxicity. We identified all patients with mCSPC treated at The Ottawa Hospital that received docetaxel chemotherapy between June 2014 and September 2017. For each patient, we calculated the time to chemotherapy (TTC) interval between the start of ADT and the first cycle of docetaxel. We checked for an association between TTC and febrile neutropenia (FN), toxicity-induced dose reduction, toxicity-induced treatment delay, and toxicity-induced treatment discontinuation. Eighty-three patients were identified. The median TTC was 67 days (range 3-189). Twenty-three patients (27.7%) experienced FN. Docetaxel toxicity resulted in 8 patients (9.6%) having their treatment delayed, 30 patients (36.1%) having their dose reduced and 18 (21.6%) having their treatment discontinued before completing the scheduled 6 cycles. No correlation was found between the TTC and FN (P = 0.99), docetaxel dose reduction (P = 0.95), treatment delay (P = 0.06), and treatment discontinuation (P = 0.88). The timing of docetaxel treatment initiation in relation to ADT initiation in patients with mCSPC did not affect the rate of treatment-related toxicity. Therefore, there is no indication for upfront chemotherapy delay from start of ADT unless clinical factors warrant a delay in starting chemotherapy. A higher than expected FN rate was identified, and primary prophylaxis should be considered.
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Patrikidou A, Uccello M, Tree A, Parker C, Attard G, Eeles R, Khoo V, van As N, Huddart R, Dearnaley D, Reid A. Upfront Docetaxel in the Post-STAMPEDE World: Lessons from an Early Evaluation of Non-trial Usage in Hormone-Sensitive Prostate Cancer. Clin Oncol (R Coll Radiol) 2017; 29:e174-e175. [PMID: 28652092 DOI: 10.1016/j.clon.2017.06.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 05/24/2017] [Accepted: 06/06/2017] [Indexed: 10/19/2022]
Affiliation(s)
- A Patrikidou
- Academic Uro-Oncology Unit, The Royal Marsden NHS Foundation Trust, Sutton, UK; The Institute of Cancer Research, London, UK
| | - M Uccello
- Academic Uro-Oncology Unit, The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - A Tree
- Academic Uro-Oncology Unit, The Royal Marsden NHS Foundation Trust, Sutton, UK; The Institute of Cancer Research, London, UK
| | - C Parker
- Academic Uro-Oncology Unit, The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - G Attard
- Academic Uro-Oncology Unit, The Royal Marsden NHS Foundation Trust, Sutton, UK; The Institute of Cancer Research, London, UK
| | - R Eeles
- The Institute of Cancer Research, London, UK; Urology Oncology Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - V Khoo
- The Institute of Cancer Research, London, UK; Urology Oncology Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - N van As
- Urology Oncology Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - R Huddart
- Academic Uro-Oncology Unit, The Royal Marsden NHS Foundation Trust, Sutton, UK; The Institute of Cancer Research, London, UK
| | - D Dearnaley
- Academic Uro-Oncology Unit, The Royal Marsden NHS Foundation Trust, Sutton, UK; The Institute of Cancer Research, London, UK
| | - A Reid
- Academic Uro-Oncology Unit, The Royal Marsden NHS Foundation Trust, Sutton, UK
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