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- W4247361750 abstract "No AccessJournal of UrologyAdult Urology1 Aug 2009Denosumab Treatment of Prostate Cancer With Bone Metastases and Increased Urine N-Telopeptide Levels After Therapy With Intravenous Bisphosphonates: Results of a Randomized Phase II Trialis companion ofDenosumab Treatment of Prostate Cancer With Bone Metastases and Increased Urine N-Telopeptide Levels After Therapy With Intravenous Bisphosphonates: Results of a Randomized Phase II Trial Karim Fizazi, Linda Bosserman, Guozhi Gao, Tomas Skacel, and Richard Markus Karim FizaziKarim Fizazi Institut Gustave Roussy and University of Paris XI, Villejuif, France Financial interest and/or other relationship with Amgen, Novartis, AstraZeneca, Sanofi-Aventis, Ipsen-Beaufour, Pharmion, Bristol Myers Squibb and Takeda. More articles by this author , Linda BossermanLinda Bosserman Wilshire Oncology Medical Group, La Verne, California Financial interest and/or other relationship with Amgen and Pfizer. More articles by this author , Guozhi GaoGuozhi Gao Amgen Inc., San Francisco, California Financial interest and/or other relationship with Amgen. More articles by this author , Tomas SkacelTomas Skacel Amgen (Europe) GmbH, Zug, Switzerland Financial interest and/or other relationship with Amgen. More articles by this author , and Richard MarkusRichard Markus Amgen Inc., Thousand Oaks, California Financial interest and/or other relationship with Amgen. More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2009.04.023AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract Purpose: Patients with bone metastases have high rates of RANKL driven bone resorption and an increased risk of skeletal morbidity. Osteoclast mediated bone resorption can be assessed by measuring urine N-telopeptide and can be inhibited by denosumab, a fully human antibody against RANKL. Materials and Methods: Eligible patients (111) had bone metastases from prostate cancer, other solid tumors or multiple myeloma, 1 or more bone lesions and urine N-telopeptide greater than 50 nM bone collagen equivalents per mM creatinine (urine N-telopeptide greater than 50) despite the use of intravenous bisphosphonates. Patients were stratified by cancer type and screening urine N-telopeptide, and randomized to continue intravenous bisphosphonates every 4 weeks or receive 180 mg subcutaneous denosumab every 4 weeks or 180 mg every 12 weeks. The primary end point was the proportion of patients with urine N-telopeptide less than 50 at week 13. We report the efficacy results for the subset of patients with prostate cancer. Results: Patients with prostate cancer represented 45% (50 of 111) of the study population. At week 13, 22 of 32 (69%) patients in the denosumab arms had urine N-telopeptide less than 50 vs 3 of 16 (19%) in the intravenous bisphosphonates cohort. At week 25, 22 of 32 (69%) denosumab treated patients continued to have urine N-telopeptide less than 50 vs 5 of 16 (31%) treated with intravenous bisphosphonates. Grade 4, asymptomatic, reversible hypophosphatemia, possibly related to denosumab, was reported in 1 patient. Conclusions: In patients with prostate cancer related bone metastases and increased urine N-telopeptide despite intravenous bisphosphonate treatment, denosumab normalized urine N-telopeptide levels more frequently than ongoing intravenous bisphosphonates. References 1 : Health statistics and health information systems: Revised Global Burden of Disease (GBD) 2002 estimates. http://www.who.int/healthinfo/bodgbd2002revised/en/index.html. Accessed May 15, 2008. Google Scholar 2 : Skeletal complications of malignancy. Cancer1997; 80: 1588. Google Scholar 3 : Bone turnover markers as predictors of skeletal complications in prostate cancer, lung cancer, and other solid tumors. J Natl Cancer Inst2005; 97: 59. 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In: Skeletal Tissue Mechanics. Edited by . New York: Springer1998: 29. Google Scholar 11 : Osteoporosis due to cancer treatment: pathogenesis and management. J Clin Oncol2000; 18: 1570. Google Scholar 12 : Bone resorption predicts for skeletal complications in metastatic bone disease. Br J Cancer2003; 89: 2031. Google Scholar 13 : Guidance on the use of bisphosphonates in solid tumours: recommendations of an international expert panel. Ann Oncol2008; 19: 420. Google Scholar 14 : A study of the biological receptor activator of nuclear factor-kappaB ligand inhibitor, denosumab, in patients with multiple myeloma or bone metastases from breast cancer. Clin Cancer Res2006; 12: 1221. Google Scholar 15 : Randomized phase II trial of denosumab in patients with bone metastases from prostate cancer, breast cancer, or other neoplasms after intravenous bisphosphonates. J Clin Oncol2009; 27: 1564. Google Scholar 16 : Predictors of skeletal complications in men with hormone-refractory metastatic prostate cancer. Urology2007; 70: 315. Google Scholar 17 : Extended efficacy and safety of denosumab in breast cancer patients with bone metastases not receiving prior bisphosphonate therapy. Clin Cancer Res2008; 14: 6690. Google Scholar 18 : Phase II trial of consolidation docetaxel and samarium-153 in patients with bone metastases from castration-resistant prostate cancer. J Clin Oncol2009; 27: 2429. Google Scholar 19 : The role of Src in prostate cancer. Ann Oncol2007; 18: 1765. Google Scholar 20 : Targeting bone metastasis in prostate cancer with endothelin receptor antagonists. Clin Cancer Res2006; 12: 6296s. Google Scholar © 2009 by American Urological AssociationFiguresReferencesRelatedDetailsRelated articlesJournal of Urology10 Nov 2018Denosumab Treatment of Prostate Cancer With Bone Metastases and Increased Urine N-Telopeptide Levels After Therapy With Intravenous Bisphosphonates: Results of a Randomized Phase II Trial Volume 182Issue 2August 2009Page: 509-516 Advertisement Copyright & Permissions© 2009 by American Urological AssociationKeywordsRANK ligandosteoclastsprostatic neoplasmsurinary N-telopeptide of type I collagendenosumabhumanAcknowledgmentsTing Chang, PhD and Sue Hudson from Amgen Inc. provided writing assistance. Several investigators treated patients with prostate cancer in this study, including Zenoma Jablońska, Wroclaw, Poland; Xavier Mariette, Le Kremlin Bicêtre, Cedex, France; Tirzo Suarez, Merida, Yucatan, Mexico; Jesus Lopez-Hernandez, Durango, Mexico; Ana Rodriguez, Guadalajara, Jalisco, Mexico; Antonio Garcia-Juarez, Santiago de Queretaro, Queretaro, Mexico; Jorge Robles-Avina, Mexico City, Mexico; and Francisco Rosales Hernandez, Torreon, Coahuila, Mexico.MetricsAuthor Information Karim Fizazi Institut Gustave Roussy and University of Paris XI, Villejuif, France Financial interest and/or other relationship with Amgen, Novartis, AstraZeneca, Sanofi-Aventis, Ipsen-Beaufour, Pharmion, Bristol Myers Squibb and Takeda. More articles by this author Linda Bosserman Wilshire Oncology Medical Group, La Verne, California Financial interest and/or other relationship with Amgen and Pfizer. More articles by this author Guozhi Gao Amgen Inc., San Francisco, California Financial interest and/or other relationship with Amgen. More articles by this author Tomas Skacel Amgen (Europe) GmbH, Zug, Switzerland Financial interest and/or other relationship with Amgen. More articles by this author Richard Markus Amgen Inc., Thousand Oaks, California Financial interest and/or other relationship with Amgen. More articles by this author Expand All Advertisement PDF downloadLoading ..." @default.
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