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https://www.readbyqxmd.com/read/29734647/recent-advances-in-prostate-cancer-treatment-and-drug-discovery
#1
REVIEW
Ekaterina Nevedomskaya, Simon J Baumgart, Bernard Haendler
Novel drugs, drug sequences and combinations have improved the outcome of prostate cancer in recent years. The latest approvals include abiraterone acetate, enzalutamide and apalutamide which target androgen receptor (AR) signaling, radium-223 dichloride for reduction of bone metastases, sipuleucel-T immunotherapy and taxane-based chemotherapy. Adding abiraterone acetate to androgen deprivation therapy (ADT) in order to achieve complete androgen blockade has proven highly beneficial for treatment of locally advanced prostate cancer and metastatic hormone-sensitive prostate cancer (mHSPC)...
May 4, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29673712/update-on-systemic-prostate-cancer-therapies-management-of-metastatic-castration-resistant-prostate-cancer-in-the-era-of-precision-oncology
#2
REVIEW
Philipp Nuhn, Johann S De Bono, Karim Fizazi, Stephen J Freedland, Maurizio Grilli, Philip W Kantoff, Guru Sonpavde, Cora N Sternberg, Srinivasan Yegnasubramanian, Emmanuel S Antonarakis
CONTEXT: Introduction of novel agents for the management of advanced prostate cancer provides a range of treatment options with notable benefits for men with metastatic castration-resistant prostate cancer (mCRPC). At the same time, understanding of optimal patient selection, effective sequential use, and development of resistance patterns remains incomplete. OBJECTIVE: To review current systemic therapies and recent advances in drug development for mCRPC and strategies to aid in patient selection and optimal sequencing...
April 16, 2018: European Urology
https://www.readbyqxmd.com/read/29582792/perspectives-on-the-clinical-development-of-immunotherapy-in-prostate-cancer
#3
Lisa M Cordes, James L Gulley, Ravi A Madan
Despite impressive survival benefits with immunotherapy in patients with various solid tumors, the full potential of these agents in prostate cancer has yet to be realized. Sipuleucel-T demonstrated a survival benefit in this population, indicating that prostate cancer is an immunoresponsive disease; however, these results have not been matched by other agents. A large trial with ipilimumab in prostate cancer failed to meet its primary objective, and small trials with PD-1/PD-L1 inhibitors did not yield a significant improvement in overall response...
March 27, 2018: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29548065/immunotherapy-for-prostate-cancer-where-do-we-go-from-here-part-1-prostate-cancer-vaccines
#4
Amar Patel, Lawrence Fong
Immunotherapies have emerged as a revolutionary modality for cancer treatment, and a variety of immune-based approaches are currently being investigated in the field of prostate cancer. Despite the 2010 approval of sipuleucel-T, subsequent progress in prostate cancer immunotherapy development has been limited by disappointing results with novel vaccination approaches and by prostate cancer's general resistance to immune checkpoint blockade. Nevertheless, there remains strong preclinical and clinical evidence to suggest that prostate cancer is a susceptible target for immune therapies...
March 15, 2018: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/29534736/prime-boost-vaccination-targeting-prostatic-acid-phosphatase-pap-in-patients-with-metastatic-castration-resistant-prostate-cancer-mcrpc-using-sipuleucel-t-and-a-dna-vaccine
#5
Ellen Wargowski, Laura E Johnson, Jens C Eickhoff, Lauren Delmastro, Mary Jane Staab, Glenn Liu, Douglas G McNeel
BACKGROUND: Prostatic acid phosphatase (PAP) is a prostate tumor antigen, and the target of the only FDA-approved anti-tumor vaccine, sipuleucel-T. We have previously reported in two clinical trials that a DNA vaccine encoding PAP (pTVG-HP) could elicit PAP-specific, Th1-biased T cells in patients with PSA-recurrent prostate cancer. In the current pilot trial we sought to evaluate whether this vaccine could augment PAP-specific immunity when used as a booster to immunization with sipuleucel-T in patients with metastatic, castration-resistant prostate cancer (mCRPC)...
March 13, 2018: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/29520448/targeting-the-tumor-microenvironment-with-immunotherapy-for-genitourinary-malignancies
#6
REVIEW
Ariel E Marciscano, Ravi A Madan
Bacillus Calmette-Guérin in urothelial carcinoma, high-dose interleukin-2 in renal cell carcinoma, and sipuleucel-T in prostate cancer serve as enduring examples that the host immune response can be harnessed to promote effective anti-tumor immunity in genitourinary malignancies. Recently, cancer immunotherapy with immune checkpoint inhibitors has transformed the prognostic landscape leading to durable responses in a subset of urothelial carcinoma and renal cell carcinoma patients with traditionally poor prognosis...
March 8, 2018: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/29510667/temporal-and-geographic-variation-in-the-systemic-treatment-of-advanced-prostate-cancer
#7
Megan E V Caram, Jason P Estes, Jennifer J Griggs, Paul Lin, Bhramar Mukherjee
BACKGROUND: Several systemic treatments have been shown to increase survival for patients with metastatic castration-resistant prostate cancer. This study sought to characterize variation in use of the six "focus drugs" (docetaxel, abiraterone, enzalutamide, sipuleucel-T, radium-223, and cabazitaxel) that have been approved by the Food and Drug Administration for the treatment of metastatic castration-resistant prostate cancer during the years 2010-2015. We hypothesized that the use of these treatments would vary over time and by region of the country...
March 6, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29421982/immune-based-therapies-for-metastatic-prostate-cancer-an-update
#8
Md Kamal Hossain, Kamrun Nahar, Osaana Donkor, Vasso Apostolopoulos
Prostate cancer (PC) is a common malignancy among elderly males and is noncurable once it becomes metastatic. In recent years, a number of antigen-delivery systems have emerged as viable and promising immunotherapeutic agents against PC. The approval of sipuleucel-T by the US FDA for the treatment of males with asymptomatic or minimally symptomatic castrate resistant PC was a landmark in cancer immunotherapy, making this the first approved immunotherapeutic. A number of vaccines are under clinical investigation, each having its own set of advantages and disadvantages...
February 1, 2018: Immunotherapy
https://www.readbyqxmd.com/read/29395290/an-observational-study-of-concomitant-use-of-emerging-therapies-and-denosumab-or-zoledronic-acid-in-prostate-cancer
#9
Alexander Liede, Sally Wade, Jan Lethen, Rohini K Hernandez, Douglas Warner, Amy P Abernethy, Antonio Finelli
PURPOSE: This observational study of oncologic clinical practices was designed to describe real-world patterns of use of emerging therapies (abiraterone acetate, cabazitaxel, enzalutamide, radium-223, sipuleucel-T) in patients with castration-resistant prostate cancer and to characterize their concomitant use with denosumab or zoledronic acid. METHODS: A retrospective cohort study was conducted using a database of electronic health records from oncology practices across the United States...
April 2018: Clinical Therapeutics
https://www.readbyqxmd.com/read/29352713/clinical-variables-associated-with-overall-survival-in-metastatic-castration-resistant-prostate-cancer-patients-treated-with-sipuleucel-t-immunotherapy
#10
Xiao X Wei, Jaselle Perry, Emily Chang, Li Zhang, Robert A Hiatt, Charles J Ryan, Eric J Small, Lawrence Fong
BACKGROUND: Sipuleucel-T is an autologous cell-based cancer immunotherapy for men with asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer (mCRPC). Its approval by the Food and Drug Administration was based on demonstration of an overall survival (OS) benefit in randomized placebo-controlled phase III trials. However, treatment was associated with a prostate-specific antigen (PSA) decline in only a small minority of patients. Understanding the clinical factors that are associated with OS could help guide treatment decisions, including patient selection and the timing of sipuleucel-T relative to other therapies...
December 27, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29340160/stereotactic-body-radiation-therapy-for-the-treatment-of-oligoprogression-on-androgen-receptor-targeted-therapy-in-castration-resistant-prostate-cancer
#11
Thu-Cuc Nguyen, Ravneet Bajwa, Shahla Bari, Azka Ali, William Paul Skelton, Roland-Austin Federico, Rohit Bishnoi, Justin W Wray, Robert A Zlotecki, Long H Dang, Jameel Muzaffar
Castration-resistant prostate cancer is an incurable disease. To date, six agents-abiraterone, enzalutamide, docetaxel, cabazitaxel, radium-223 and sipuleucel-T- have shown clinical efficacy in phase III clinical trials, leading to their FDA approval. Patients are typically sequenced through most or all of these agents, and then eventually succumb to their disease. Development of new treatments remains an unmet need. We report a case of a patient who progressed on enzalutamide with a single enlarging metastatic lesion, was treated with ablative stereotactic body radiation therapy while maintaining the same systemic treatment, who then had durable complete remission...
January 2018: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/29298991/current-approaches-to-incorporation-of-radium-223-in-clinical-practice
#12
REVIEW
Chris Parker, Axel Heidenreich, Sten Nilsson, Neal Shore
BACKGROUND: Treatment options for metastatic castration-resistant prostate cancer (mCRPC) have expanded in recent years and include cytotoxic agents (e.g., docetaxel and cabazitaxel), immunotherapy (e.g., sipuleucel-T), oral hormonal therapies targeting the androgen receptor axis (e.g., enzalutamide and abiraterone), and targeted alpha therapy (e.g., radium-223 dichloride (radium-223)). Although treatment guidelines have been updated to reflect the availability of new agents, it is not easy to apply them in daily clinical practice because recommendations vary depending on patient comorbidities and disease characteristics...
January 3, 2018: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/29297175/sipuleucel-t-when-and-for-whom-to-recommend-it
#13
Susan F Slovin
Multiple immunotherapy platforms have been investigated for prostate cancer, but sipuleucel-T still remains the sole approved autologous cellular immune product that can be used in men with asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer. While preliminary data for specific checkpoint inhibitors suggest benefit for some patients, leading to durable responses, it has been clear that sipuleucel-T can affect not only the intratumoral milieu but also systemic immune populations...
December 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/29275461/tumor-immuno-environment-in-cancer-progression-and-therapy
#14
Pawel Kalinski, James E Talmadge
The approvals of Provenge (Sipuleucel-T), Ipilimumab (Yervoy/anti-CTLA-4) and blockers of the PD-1 - PD-L1/PD-L2 pathway, such as nivolumab (Opdivo), pembrolizumab (Keytruda), or atezolizumab (Tecentriq), have established immunotherapy as a key component of comprehensive cancer care. Further, murine mechanistic studies and studies in immunocompromised patients have documented the critical role of immunity in effectiveness of radio- and chemotherapy. However, in addition to the ability of the immune system to control cancer progression, it can also promote tumor growth, via regulatory T cells (Tregs), myeloid-derived dendritic cells (MDSCs) and tumor associated macrophages (TAM), which can enhance survival of cancer cells directly or via the regulation of the tumor stroma...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29260582/sipuleucel-t-for-the-treatment-of-prostate-cancer-novel-insights-and-future-directions
#15
Catherine E Handy, Emmanuel S Antonarakis
Sipuleucel-T, an autologous cellular immunotherapy manufactured from antigen-presenting cells primed to recognize prostatic acid phosphatase, was the first immunotherapy product approved by the US FDA. It was approved for men with asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer after it was shown to provide a survival advantage. Additional studies have examined its use in other clinical settings and in combination with other approved and investigational immunotherapy agents...
December 20, 2017: Future Oncology
https://www.readbyqxmd.com/read/29231062/promising-immunotherapy-for-prostate-cancer
#16
John C Henegan, Guru Sonpavde
Sipuleucel-T is the only currently approved immunotherapy for the management of prostate cancer. However, other immunotherapy agents have recently shown activity in prostate cancer and are being developed alone or in combination with other agents. Areas covered: This article provides a review of positive or encouraging clinical trials of agents under development including vaccines, monoclonal antibodies, immune modulators, gene-mediated cytotoxic immunotherapy and chimeric antigen receptor-modified 'designer' T cells in patients with prostate cancer...
February 2018: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29227196/immunotherapeutics-for-the-treatment-of-prostate-cancer-a-patent-landscape-based-on-key-therapeutic-mechanisms-of-actions
#17
Elaine Harris
The area of immunotherapeutics for the treatment of metastatic castrate-resistant prostate cancer has made significant progress since the autologous cell-based vaccine sipuleucel T became the first and to date only immunotherapy for its treatment. This review focuses on a broad patent landscaping exercise of this therapeutic area and considers if basing this landscaping on key mechanisms of action is appropriate to elicit the main patenting trends.
January 2018: Pharmaceutical Patent Analyst
https://www.readbyqxmd.com/read/29183736/immunotherapy-in-the-elderly
#18
REVIEW
Aly-Khan A Lalani, Dominick Bossé, Bradley A McGregor, Toni K Choueiri
CONTEXT: Immunotherapy has historic and contemporary presence in prostate, urothelial (UC), and renal cell (RCC) carcinomas. However, robust data on utility and generalizability of these treatments in older patients are lacking. OBJECTIVE: To systematically evaluate evidence regarding the efficacy and safety of immunotherapy in elderly patients with prostate cancer, UC, or RCC. EVIDENCE ACQUISITION: PubMed/Medline, Embase, Web of Knowledge, and Cochrane Library databases were searched up to October 2017 and according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement...
October 2017: European Urology Focus
https://www.readbyqxmd.com/read/29146441/combining-immunotherapies-for-the-treatment-of-prostate-cancer
#19
REVIEW
Jason M Redman, James L Gulley, Ravi A Madan
Sipuleucel-T, a therapeutic dendritic-cell vaccine, was Food and Drug Administration-approved for prostate cancer in 2010. No new immunotherapies for prostate cancer have been approved since. However, novel agents and combination approaches offer great promise for improving outcomes for prostate cancer patients. Here we review the latest developments in immunotherapy for prostate cancer. Sipuleucel-T has demonstrated a survival advantage of 4.1 months in metastatic castration-resistant prostate cancer. PSA-TRICOM (PROSTVAC), a prostate-specific antigen-targeted vaccine platform, showed evidence of clinical and immunologic efficacy in early-phase clinical trials, and results from a phase III trial in advanced disease are pending...
December 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29134562/seom-clinical-guidelines-for-the-treatment-of-metastatic-prostate-cancer-2017
#20
J Cassinello, J Á Arranz, J M Piulats, A Sánchez, B Pérez-Valderrama, B Mellado, M Á Climent, D Olmos, J Carles, M Lázaro
Androgen deprivation treatment was the only treatment available for metastatic prostate cancer until recently, with docetaxel as the only treatment with a proven survival benefit in castration-resistant prostate cancer (CRPC). Several drugs have been approved in the castration-resistant disease (sipuleucel-T, cabazitaxel, abiraterone, enzalutamide, radium-223). More recently, docetaxel and abiraterone have been moved to the hormone-sensitive disease setting, achieving better patient survival. The purpose of this article is to define the state of the art in the treatment of prostate carcinoma...
January 2018: Clinical & Translational Oncology
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