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Blood, 15 November 2006, Vol. 108, No. 10, pp. 3271-3279. Prepublished online as a Blood First Edition Paper on August 1, 2006; DOI 10.1182/blood-2006-03-009142. This Article Full Text Full Text (PDF) Supplemental Tables All Versions of this Article: blood-2006-03-009142v1 108/10/3271    most recent Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Rights and Permissions Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Garcia-Manero, G. Articles by Issa, J.-P. Search for Related Content PubMed PubMed Citation Articles by Garcia-Manero, G. Articles by Issa, J.-P. Related Collections Neoplasia Clinical Trials and Observations Social Bookmarking                   What's this?  Previous Article  |  Table of Contents  |  Next Article  CLINICAL TRIALS AND OBSERVATIONS Phase 1/2 study of the combination of 5-aza-2'-deoxycytidine with valproic acid in patients with leukemia Guillermo Garcia-Manero, Hagop M. Kantarjian, Blanca Sanchez-Gonzalez, Hui Yang, Gary Rosner, Srdan Verstovsek, Michael Rytting, William G. Wierda, Farhad Ravandi, Charles Koller, Lianchun Xiao, Stefan Faderl, Zeev Estrov, Jorge Cortes, Susan O'Brien, Elihu Estey, Carlos Bueso-Ramos, Jackie Fiorentino, Elias Jabbour, and Jean-Pierre Issa From the Departments of Leukemia, Biostatistics, Pediatrics, and Hematopathology, University of Texas M. D. Anderson Cancer Center, Houston. We conducted a phase 1/2 study of the combination of 5-aza-2'-deoxycytidine (decitabine) and the histone deacetylase inhibitor valproic acid (VPA) in patients with advanced leukemia, including older untreated patients. A group of 54 patients were treated with a fixed dose of decitabine (15 mg/m2 by IV daily for 10 days) administered concomitantly with escalating doses of VPA orally for 10 days. A 50 mg/kg daily dose of VPA was found to be safe. Twelve (22%) patients had objective response, including 10 (19%) complete remissions (CRs), and 2 (3%) CRs with incomplete platelet recovery (CRp). Among 10 elderly patients with acute myelogenous leukemia or myelodysplastic syndrome, 5 (50%) had a response (4CRs, 1CRp's). Induction mortality was observed in 1 (2%) patient. Major cytogenetic response was documented in 6 of 8 responders. Remission duration was 7.2 months (range, 1.3-12.6+ months). Overall survival was 15.3 months (range, 4.6-20.2+ months) in responders. Transient DNA hypomethylation and global histone H3 and H4 acetylation were induced, and were associated with p15 reactivation. Patients with lower pretreatment levels of p15 methylation had a significantly higher response rate. In summary, this combination of epigenetic therapy in leukemia was safe and active, and was associated with transient reversal of aberrant epigenetic marks. This trial was registered at www.clinicaltrials.gov as #NCT00075010 [ClinicalTrials.gov] . CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this? This article has been cited by other articles: A. A. Lane and B. A. Chabner Histone Deacetylase Inhibitors in Cancer Therapy J. Clin. Oncol., November 10, 2009; 27(32): 5459 - 5468. [Abstract] [Full Text] [PDF] T. E. Fandy, J. G. Herman, P. Kerns, A. Jiemjit, E. A. Sugar, S.-H. Choi, A. S. Yang, T. Aucott, T. Dauses, R. Odchimar-Reissig, et al. 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