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Blood, 1 January 2007, Vol. 109, No. 1, pp. 58-60. Prepublished online as a Blood First Edition Paper on September 14, 2006; DOI 10.1182/blood-2006-03-011239. This Article Full Text Full Text (PDF) Supplemental Appendix All Versions of this Article: blood-2006-03-011239v1 109/1/58    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 Rousselot, P. Articles by Mahon, F.-X. Search for Related Content PubMed PubMed Citation Articles by Rousselot, P. Articles by Mahon, F.-X. Related Collections Neoplasia Oncogenes and Tumor Suppressors Brief Reports Clinical Trials and Observations Social Bookmarking                   What's this?  Previous Article  |  Table of Contents  |  Next Article  CLINICAL TRIALS AND OBSERVATIONS Brief report Imatinib mesylate discontinuation in patients with chronic myelogenous leukemia in complete molecular remission for more than 2 years Philippe Rousselot1,2, Francoise Huguet3, Delphine Rea1, Laurence Legros4, Jean Michel Cayuela5, Odile Maarek5, Odile Blanchet6, Gerald Marit7, Eliane Gluckman1, Josy Reiffers8, Martine Gardembas9, François-Xavier Mahon10,, The Intergroupe Français des Leucémies Myéloïdes Chronique (FILMC) 1 Fédération d'hématologie et Centre d'Investigation Clinique, Hôpital Saint-Louis, Paris, France; 2 Service d'Hématologie et d'Oncologie, Hôpital Mignot, Versailles, France; 3 Service d'Hématologie, Hôpital de Purpan, Toulouse, France; 4 Service d'hématologie, Hôpital Larchet, Nice, France; 5 Laboratoire Central d'Hématologie, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité (U) 728, Hôpital Saint-Louis, Paris, France; 6 Laboratoire d'hématologie, Centre Hospitalo-Universitaire (CHU) d'Angers, France; 7 Service des Maladies du Sang, CHU du Haut Lévèque, Pessac, France; 8 Institut Bergonié, Bordeaux, France; 9 Service d'Hématologie, CHU d'Angers, France; 10 Laboratoire Hématopoïèse normale et leucemique, Université Victor Ségalen Bordeaux 2, INSERM E217, France In the present study, we address the issue of the discontinuation of imatinib mesylate (Gleevec) in chronic myelogenous leukemia with undetectable residual disease for more than 2 years. Twelve patients were included. The median duration of real-time quantitative–polymerase chain reaction (RTQ-PCR) negativity and imatinib therapy were, respectively, 32 months (range, 24-46 months) and 45 months (range, 32-56 months) before imatinib interruption. Six patients displayed a molecular relapse with a detectable BCR-ABL transcript at 1, 1, 2, 3, 4, and 5 months. Imatinib was then reintroduced and led to a novel molecular response in most patients. Six other patients (50%) still have an undetectable level of BCR-ABL transcript after a median follow-up of 18 months (range, 9-24 months). We hypothesize that relapses observed within 6 months reflect the kinetics of undetectable dividing chronic myelogenous leukemia (CML) cells. Those cells may be eradicated or controlled in long-term nonrelapsing patients, as described in our study. CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this? This article has been cited by other articles: M. Baccarani, M. 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