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Abstract
No study has been published yet in the Arab world regarding response and outcome of imatinib in patients with chronic myeloid leukemia (CML). This study evaluated a total of 122 patients with CML treated with imatinib between 2001 and 2012. Survival, hematologic, cytogenetic and molecular responses and adverse events were assessed. The 5-year overall survival (OS), event free survival (EFS) and progression-free survival (PFS) rates were: 95.4 ± 2.3%, 81.4 ± 4.6% and 90.8 ± 3.2%, respectively. Significant differences in OS (p = 0.001), EFS (p = 0.001) and PFS (p = 0.001) were noted when patients were stratified by cytogenetic response. Survival by Sokal risk groups was not significant (p = 0.293). Complete hematologic response was achieved in 94 patients (93.1%), cytogenetic response in 84 (83.2%), major molecular response in 62 (61.4%) and complete molecular response in 34 (33.7%). This article presents the first evidence on the effectiveness of imatinib in patients with CML from Saudi Arabia and highlights similarities and differences in response patterns in published studies.
Acknowledgements
We would like to acknowledge and express our appreciation to the following individuals from our institution for their contributions to the study: Dr. Yousef from King Abdullah International Medical Research Center and all team members of the Hematology and Cytogenetics and Molecular Laboratory Departments.
Potential conflict of interest
Disclosure forms provided by the authors are available with the full text of this article at www.informahealthcare.com/lal.