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Nouri M, Varkaris A, Ridinger M, Dalrymple SL, Dennehy CM, Isaacs JT, Einstein DJ, Brennen WN, Balk SP. AKT Inhibition Sensitizes to Polo-Like Kinase 1 Inhibitor Onvansertib in Prostate Cancer. Mol Cancer Ther 2024; 23:1404-1417. [PMID: 38894678 PMCID: PMC11444904 DOI: 10.1158/1535-7163.mct-23-0933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/12/2024] [Accepted: 06/14/2024] [Indexed: 06/21/2024]
Abstract
Polo-like kinase 1 (PLK1) inhibitors have had limited antitumor efficacy as single agents, and focus of current efforts is on combination therapies. We initially confirmed that the PLK1-specific inhibitor onvansertib (ONV) could enhance responses to a PARP inhibitor (olaparib) in prostate cancer xenografts. To identify more effective combinations, we screened a library of bioactive compounds for efficacy in combination with ONV in LNCaP prostate cancer cells, which identified a series of compounds including multiple AKT inhibitors. We confirmed in vitro synergy between ONV and the AKT inhibitor ipatasertib (IPA) and found that the combination increased apoptosis. Mechanistic studies showed that ONV increased expression of the antiapoptotic protein SURVIVIN and that this was mitigated by IPA. Studies in three PTEN-deficient prostate cancer xenograft models showed that cotreatment with IPA and ONV led to significant tumor growth inhibition compared with monotherapies. Together, these in vitro and in vivo studies demonstrate that the efficacy of PLK1 antagonists can be enhanced by PARP or AKT inhibition and support further development of these combination therapies.
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Affiliation(s)
- Mannan Nouri
- Division of Medical Oncology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
| | - Andreas Varkaris
- Division of Medical Oncology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
| | | | - Susan L. Dalrymple
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Baltimore, MD, 21231, USA
| | - Christopher M. Dennehy
- Division of Medical Oncology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
| | - John T. Isaacs
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Baltimore, MD, 21231, USA
| | - David J. Einstein
- Division of Medical Oncology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
| | - W. Nathaniel Brennen
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Baltimore, MD, 21231, USA
| | - Steven P. Balk
- Division of Medical Oncology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
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Kwon WA, Song YS, Lee MK. Strategic Advances in Combination Therapy for Metastatic Castration-Sensitive Prostate Cancer: Current Insights and Future Perspectives. Cancers (Basel) 2024; 16:3187. [PMID: 39335158 PMCID: PMC11430187 DOI: 10.3390/cancers16183187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2024] [Revised: 09/14/2024] [Accepted: 09/14/2024] [Indexed: 09/30/2024] Open
Abstract
The contemporary treatment for metastatic castration-sensitive prostate cancer (mCSPC) has evolved significantly, building on successes in managing metastatic castration-resistant prostate cancer (mCRPC). Although androgen deprivation therapy (ADT) alone has long been the cornerstone of mCSPC treatment, combination therapies have emerged as the new standard of care based on recent advances, offering improved survival outcomes. Landmark phase 3 trials demonstrated that adding chemotherapy (docetaxel) and androgen receptor pathway inhibitors to ADT significantly enhances overall survival, particularly for patients with high-volume, high-risk, or de novo metastatic disease. Despite these advancements, a concerning gap between evidence-based guidelines and real-world practice remains, with many patients not receiving recommended combination therapies. The challenge in optimizing therapy sequences, considering both disease control and treatment burdens, and identifying clinical and biological subgroups that could benefit from personalized treatment strategies persists. The advent of triplet therapy has shown promise in extending survival, but the uro-oncology community must narrow the gap between evidence and practice to deliver the most effective care. Current research is focused on refining treatment approaches and utilizing biomarkers to guide therapy selection, aiming to offer more personalized and adaptive strategies for mCSPC management. Thus, aligning clinical practices with the evolving evidence is urgently needed to improve outcomes for patients facing this incurable disease.
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Affiliation(s)
- Whi-An Kwon
- Department of Urology, Hanyang University College of Medicine, Myongji Hospital, Goyang 10475, Republic of Korea
| | - Yong Sang Song
- Department of Obstetrics and Gynecology, Hanyang University College of Medicine, Myongji Hospital, Goyang 10475, Republic of Korea
| | - Min-Kyung Lee
- Department of Internal Medicine, Hanyang University College of Medicine, Myongji Hospital, Goyang 10475, Republic of Korea
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Lee D, Lim B, Nguyen TT, Choi SY. Identifying Suitable Patients for Overcoming Androgen Deprivation Monotherapy in De Novo Metastatic Hormone-Sensitive Prostate Cancer. J Pers Med 2024; 14:517. [PMID: 38793099 PMCID: PMC11122339 DOI: 10.3390/jpm14050517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND Although metastatic hormone-sensitive prostate cancer (mHSPC) treatments have evolved, androgen deprivation therapy (ADT) remains a widely used regimen. Therefore, this study sought patients who did not progress to castration-resistant prostate cancer (CRPC) but received ADT monotherapy and factors affecting overall survival (OS) in de novo mHSPC. METHODS De novo mHSPC patients who received ADT treatment were included. ADT included luteinizing hormone-releasing hormone agonists with or without anti-androgen. The total cohort was divided into two groups relative to CRPC progression within two years. Logistic analysis was used to identify factors that did not progress CRPC within two years. Cox regression was used to assess the independent predictors for OS. RESULTS The total cohort was divided into the no-CRPC within two years group (n = 135) and the CRPC within two years group (n = 126). Through multivariate logistic analysis, the life expectancy (odds ratio [OR] 0.95, 95% CI 0.91-0.99, p = 0.014) and Gleason scores (≥9 vs. ≤8; OR 0.43, 95% CI 0.24-0.75, p = 0.003) were associated with the group without castration-resistant prostate cancer progression within two years. The multivariate Cox model revealed that life expectancy (hazard ratio [HR] 0.951, 95% CI 0.904-0.999, p = 0.0491), BMI (HR 0.870, 95% CI 0.783-0.967, p = 0.0101), and CCI (≥2 vs. <2; HR 2.018, 95% CI 1.103-3.693, p = 0.0227) were significant predictive factors for OS. CONCLUSIONS Patients with long life expectancy and a Gleason score of 9 or more were more likely to develop mCRPC while alive. Patients with short life expectancy, low BMI, and worsening comorbidity were more likely to die before progressing to CRPC. Although intensified treatment is essential for oncologic outcomes in mHSPC, shared decision making is integral for patients who may not benefit from this treatment.
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Affiliation(s)
- Donghyun Lee
- Department of Urology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul 07441, Republic of Korea;
| | - Bumjin Lim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea;
| | - Tuan Thanh Nguyen
- Department of Urology, Cho Ray Hospital, University of Medicine and Pharmacy, Ho Chi Minh City 700000, Vietnam;
| | - Se Young Choi
- Department of Urology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul 06973, Republic of Korea
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Kafka M, Giannini G, Artamonova N, Neuwirt H, Ofner H, Kramer G, Bauernhofer T, Luger F, Höfner T, Loidl W, Griessner H, Lusuardi L, Bergmaier A, Berger A, Winder T, Weiss S, Bauinger S, Krause S, Drerup M, Heinrich E, Schneider M, Madersbacher S, Vallet S, Stoiber F, Laimer S, Hruby S, Schachtner G, Nagele U, Lenart S, Ponholzer A, Pfuner J, Wiesinger C, Kamhuber C, Müldür E, Bektic J, Horninger W, Heidegger I. Real-World Evidence of Triplet Therapy in Metastatic Hormone-Sensitive Prostate Cancer: An Austrian Multicenter Study. Clin Genitourin Cancer 2024; 22:458-466.e1. [PMID: 38267304 DOI: 10.1016/j.clgc.2023.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/20/2023] [Accepted: 12/31/2023] [Indexed: 01/26/2024]
Abstract
INTRODUCTION Two randomized trials demonstrated a survival benefit of triplet therapy (androgen deprivation therapy [ADT]) plus androgen receptor pathway inhibitor [ARPI] plus docetaxel) over doublet therapy (ADT plus docetaxel), thus changing treatment strategies in metastatic hormonesensitive prostate cancer (mHSPC). PATIENTS AND METHODS We conducted the first real-world analysis comprising 97 mHSPC patients from 16 Austrian medical centers, among them 79.4% of patients received abiraterone and 17.5% darolutamide treatment. Baseline characteristics and clinical parameters during triplet therapy were documented. Mann-Whitney U test for continuous or X²-test for categorical variables was used. Variables on progression were tested using logistic regression analysis and tabulated as hazard ratios (HR), 95% confidence interval (CI). RESULTS Of 83.5% patients with synchronous and 16.5% with metachronous disease were included. 83.5% had high-volume disease diagnosed by conventional imaging (48.9%) or PSMA PET-CT (51.1%). While docetaxel and ARPI were administered consistent with pivotal trials, prednisolone, prophylactic gCSF and osteoprotective agents were not applied guideline conform in 32.5%, 37%, and 24.3% of patients, respectively. Importantly, a nonsimultaneous onset of chemotherapy and ARPI, performed in 44.3% of patients, was associated with significantly worse treatment response (P = .015, HR 0.245). Starting ARPI before chemotherapy was associated with significantly higher probability for progression (P = .023, HR 15.781) than vice versa. Strikingly, 15.6% (abiraterone) and 25.5% (darolutamide) low-volume patients as well as 14.4% (abiraterone) and 17.6% (darolutamide) metachronous patients received triplet therapy. Adverse events (AE) occurred in 61.9% with grade 3 to 5 in 15% of patient without age-related differences. All patients achieved a PSA decline of 99% and imaging response was confirmed in 88% of abiraterone and 75% of darolutamide patients. CONCLUSIONS Triplet therapy arrived in clinical practice primarily for synchronous high-volume mHSPC. Regardless of selected therapy regimen, treatment is highly effective and tolerable. Preferably therapy should be administered simultaneously, however if not possible, chemotherapy should be started first.
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Affiliation(s)
- Mona Kafka
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria
| | - Giulia Giannini
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria
| | | | - Hannes Neuwirt
- Department of Internal Medicine IV, Medical University Innsbruck, Innsbruck, Austria
| | - Heidemarie Ofner
- Department of Urology, Medical University Vienna, Vienna, Austria
| | - Gero Kramer
- Department of Urology, Medical University Vienna, Vienna, Austria
| | | | - Ferdinand Luger
- Department of Urology, Ordensklinikum Linz Elisabethinen, Linz, Austria
| | - Thomas Höfner
- Department of Urology, Ordensklinikum Linz Elisabethinen, Linz, Austria
| | - Wolfgang Loidl
- Department of Urology, Ordensklinikum Linz Elisabethinen, Linz, Austria
| | | | | | - Antonia Bergmaier
- Department of Urology, Landeskrankenhaus Feldkirch, Feldkirch, Austria
| | - Andreas Berger
- Department of Urology, Landeskrankenhaus Feldkirch, Feldkirch, Austria
| | - Thomas Winder
- Department of Oncology, Landeskrankenhaus Feldkirch, Feldkirch, Austria
| | - Sarah Weiss
- Department of Urology, Kepler University Linz, Linz, Austria
| | | | - Steffen Krause
- Department of Urology, Kepler University Linz, Linz, Austria
| | - Martin Drerup
- Department of Urology, Barmherzige Brüder Salzburg, Salzburg, Austria
| | - Elmar Heinrich
- Department of Urology, Barmherzige Brüder Salzburg, Salzburg, Austria
| | | | | | - Sonia Vallet
- Division of Internal Medicine 2, Karl Landsteiner University of Health Sciences, University Hospital Krems, Krems, Austria
| | - Franz Stoiber
- Department of Urology, Salzkammergut Klinikum Vöcklabruck, Vöcklabruck, Austria
| | - Sarah Laimer
- Department of Urology, Tauernklinikum, Zell am See, Austria
| | - Stephan Hruby
- Department of Urology, Tauernklinikum, Zell am See, Austria
| | - Gert Schachtner
- Department of Urology, Landeskrankenhaus Hall, Innsbruck, Austria
| | - Udo Nagele
- Department of Urology, Landeskrankenhaus Hall, Innsbruck, Austria
| | - Sebastian Lenart
- Department of Urology, Barmherzige Brüder Vienna, Vienna, Austria
| | - Anton Ponholzer
- Department of Urology, Barmherzige Brüder Vienna, Vienna, Austria
| | - Jacob Pfuner
- Department of Urology, Klinikum Wels-Grieskirchen, Wels, Austria
| | | | - Christoph Kamhuber
- Department of Oncology, Kardinal Schwarzenberg Klinikum, Schwarzach, Austria
| | - Ecan Müldür
- Department of Oncology, Klinik Ottakring, Vienna, Austria
| | - Jasmin Bektic
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria
| | | | - Isabel Heidegger
- Department of Urology, Medical University Innsbruck, Innsbruck, Austria.
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Tsaur I, Mirvald C, Surcel C. Triple therapy in metastatic hormone-sensitive prostate cancer. Curr Opin Urol 2023; 33:452-457. [PMID: 37655968 DOI: 10.1097/mou.0000000000001125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
PURPOSE OF REVIEW Over the last years, there have been striking changes in the management of metastatic hormone-sensitive prostate cancer (mHSPC) based on survival advantage of combining either a new hormonal agent (NHA) or docetaxel (D) with androgen deprivation therapy (ADT). Some of these studies primarily assessing doublet treatment included men who underwent concomitant or sequential treatment with D. Most recently, prospective randomized evidence emerged on this triplet strategy too. We aimed to outline the current data and ongoing trials evaluating the usage of the triplet therapy in male individuals with mHSPC. RECENT FINDINGS Phase III trials PEACE-1 and ARASENS showed that the upfront triplet treatment with ADT+D and either abiraterone acetate or darolutamide outperformed ADT+D in terms of survival, while severe toxicity was mainly driven by D. Importantly, prospective evidence comparing triplet vs. ADT+NHA is still lacking. SUMMARY Men with de novo high-volume disease benefit most from the triplet, while in cases with metachronous and/or low-volume disease, survival advantage is still disputable. As efficacy of ADT+NHA does not appear to be substantially amplified by combination with D, those men with a more favorable underlying tumor biology might mostly benefit from this doublet, also taking quality-adjusted survival into account.
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Affiliation(s)
- Igor Tsaur
- Department of Urology and Pediatric Urology, University Medicine Mainz, Germany
| | - Cristian Mirvald
- Department of Urology, Fundeni Clinical Institute
- University of Medicine and Pharmacy, 'Carol Davila' Bucharest, Bucharest, Romania
| | - Cristian Surcel
- Department of Urology, Fundeni Clinical Institute
- University of Medicine and Pharmacy, 'Carol Davila' Bucharest, Bucharest, Romania
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