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Real-world and abiraterone

Elisabetta Malangone-Monaco, Kathleen Foley, Helen Varker, Kathleen L Wilson, Scott McKenzie, Lorie Ellis
PURPOSE: The purpose of this study was to examine, using a US electronic medical records (EMR) database, the clinical characteristics and real-world treatment sequences in men with advanced prostate cancer who initiated treatment with abiraterone acetate or enzalutamide. METHODS: This retrospective, observational study evaluated adult male patients with a diagnosis of prostate cancer (International Classification of Diseases, Ninth Revision, Clinical Modification code 185) in the EMR database between July 1, 2011, and March 31, 2014, who had initiated first-line treatment with abiraterone acetate or enzalutamide between September 1, 2012, and March 31, 2014...
August 2016: Clinical Therapeutics
Mallika Dhawan, Charles J Ryan
Abiraterone and enzalutamide are in widespread clinical use because of their favorable safety and efficacy. Nonetheless, even with newer agents, resistance develops overtime. In this review, we discuss mechanisms of resistance to these newer agents as well as novel therapeutic agents. We also review the literature to help clinicians decide which agent to begin with and when to stop or switch androgen receptor agents.
August 2016: Urologic Oncology
Hideaki Miyake, Takuto Hara, Tomoaki Terakawa, Seiichiro Ozono, Masato Fujisawa
BACKGROUND: The objective of the present study was to comprehensively compare the clinical outcomes between abiraterone acetate (AA) and enzalutamide (Enz) in Japanese patients with docetaxel-naive metastatic castration-resistant prostate cancer (mCRPC). PATIENTS AND METHODS: The present study retrospectively included 280 consecutive mCRPC patients, consisting of 113 and 167 who had received AA and Enz, respectively, without previous treatment with docetaxel. RESULTS: Of the several baseline characteristics examined, some parameters, including performance status (PS), prostate-specific antigen (PSA) value, and incidence of lymph node metastasis, significantly favored the Enz over the AA group...
June 23, 2016: Clinical Genitourinary Cancer
Edoardo Francini, Christopher J Sweeney
UNLABELLED: For >6 yr, docetaxel with prednisone was the only treatment with survival benefits for metastatic castration-resistant prostate cancer (mCRPC). More recently, in clinical practice, abiraterone acetate has been commonly administered prior to docetaxel for the treatment of mCRPC. Our study aimed to review the activity of docetaxel after prior abiraterone. To this end, we analyzed all retrospective reports in the literature describing the overall survival (OS) of mCRPC patients treated with docetaxel after previous abiraterone...
September 2016: European Urology
Johanna Svensson, Emelie Andersson, Ulf Persson, Thomas Edekling, Anna Ovanfors, Göran Ahlgren
OBJECTIVE: In a randomized clinical trial (COU-AA-301), abiraterone acetate (Zytiga(®)) was shown to be superior to prednisone in the treatment of metastatic castration-resistant prostate cancer (mCRPC). However, the value of abiraterone treatment for patients with mCRPC in clinical practice in Sweden is not known. The aim of this study was to compare the outcomes and treatment patterns of abiraterone treatment in a Swedish observational study to those of the pivotal clinical trial, thereby discussing the external validity of the postchemotherapy clinical trial from a Swedish perspective...
August 2016: Scandinavian Journal of Urology
Darren M C Poon, Kuen Chan, S H Lee, T W Chan, Henry Sze, Eric K C Lee, Daisy Lam, Michelle F T Chan
BACKGROUND: There is much interest in confirming whether the efficacy of abiraterone acetate (AA) demonstrated within the trial setting is reproducible in routine clinical practice. We report the clinical outcome of metastatic castration-resistant prostate cancer (mCRPC) patients treated with AA in real-life clinical practice. METHODS: The clinical records of mCRPC patients treated with AA from all 6 public oncology centers in Hong Kong between August 2011 and December 2014 were reviewed...
2016: BMC Urology
Charles Van Praet, Sylvie Rottey, Fransien Van Hende, Gino Pelgrims, Wim Demey, Filip Van Aelst, Wim Wynendaele, Thierry Gil, Peter Schatteman, Bertrand Filleul, Dennis Schallier, Jean-Pascal Machiels, Dirk Schrijvers, Els Everaert, Lionel D'Hondt, Patrick Werbrouck, Joanna Vermeij, Jeroen Mebis, Marylene Clausse, Marika Rasschaert, Joanna Van Erps, Jolanda Verheezen, Jan Van Haverbeke, Jean-Charles Goeminne, Nicolaas Lumen
BACKGROUND: Abiraterone acetate (AA) is licensed for treating metastatic castration-resistant prostate cancer (mCRPC). Real-world data on oncological outcome after AA are scarce. The current study assesses efficacy and safety of AA in mCRPC patients previously treated with docetaxel who started treatment during the Belgian compassionate use program (January 2011-July 2012). PATIENTS AND METHODS: Records from 368 patients with mCRPC from 23 different Belgian hospitals who started AA 1000mg per day with 10mg prednisone or equivalent were retrospectively reviewed (September 2013-December 2014)...
June 2016: Urologic Oncology
Thomas W Flaig, Ravi C Potluri, Yvette Ng, Mary B Todd, Maneesha Mehra
Despite increasing drug treatment options for metastatic castration-resistant prostate cancer (mCRPC) patients, real-world treatment data are lacking. We conducted retrospective analyses of commercial claims and electronic medical record (EMR) databases to understand how treatment patterns for mCRPC have changed in a US-based real-world population. Truven Health Analytics MarketScan(®) (2000-2013) and EMR (2004-2013) databases were used to identify patients with an index prostate cancer diagnosis (ICD-9 codes 185X or 233...
February 2016: Cancer Medicine
Susumu Kunisawa, Chihiro Tange, Kojiro Shimozuma
Previous cost-effectiveness analyses (CEAs) of abiraterone for castration-resistant prostate cancer (CRPC) patients have not shown favorable results for this new drug. These CEAs were generally conducted based on models used in clinical trials, where comparisons were made with patients given placebos. However, details on any other therapies provided to the comparison groups were not analyzed. These additional therapies should be considered when conducting CEAs to ensure better applications to clinical practice and policymaking...
2015: SpringerPlus
L Dearden, P Musingarimi, N Shalet, D Demuth, L Garcia Alvarez, A Muthutantri, A Venerus, R Lasry, M Hankins, T Maher
No abstract text is available yet for this article.
November 2015: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
A D Smith, C Olson, B Lyons, D Tran, D F Blackburn
Metastatic castration-resistant prostate cancer is now commonly treated with abiraterone, an orally administered chronic medication. Although abiraterone has certain advantages over docetaxel-based therapy, patients are now responsible for ensuring optimal adherence to their medication. To our knowledge, adherence to abiraterone in a real-world setting has never been described. The objective of the present study was to measure adherence to abiraterone among the first patients to receive the drug in Saskatchewan...
February 2015: Current Oncology
H H Cheng, R Gulati, A Azad, R Nadal, P Twardowski, U N Vaishampayan, N Agarwal, E I Heath, S K Pal, H-T Rehman, A Leiter, J A Batten, R B Montgomery, M D Galsky, E S Antonarakis, K N Chi, E Y Yu
BACKGROUND: Enzalutamide and abiraterone are new androgen-axis disrupting treatments for metastatic castration-resistant prostate cancer (mCRPC). We examined the response and outcomes of enzalutamide-treated mCRPC patients in the real-world context of prior treatments of abiraterone and/or docetaxel. METHODS: We conducted a seven-institution retrospective study of mCRPC patients treated with enzalutamide between January 2009 and February 2014. We compared the baseline characteristics, PSA declines, PSA progression-free survival (PSA-PFS), duration on enzalutamide and overall survival (OS) across subgroups defined by prior abiraterone and/or docetaxel...
June 2015: Prostate Cancer and Prostatic Diseases
William L Dahut, Ravi A Madan
No abstract text is available yet for this article.
October 2014: Lancet Oncology
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